□ Micro Inverter
☑ Residential PV
□ Commercial PV
□ Central & Station
■　Primary topology of solar inverters
●　Micro Converter/Inverter
Refer to single solar module, the output power is about 100-300W. Micro inverter provide MPPT control for single solar module and
convert the DC input to AC output.
Common topology of micro inverter:
CRM Flyback Interleave Micro Inverter
Full Bridge Boost Micro Inverter
Half Bridge Boost Micro Inverter
●　Residential Inverter
Refer to ordinary residential inverters, the power level distribute between 1.5KW-6KW widely. The main features are adopting single or
two MPPT control, a set or two set boost circuit to raise the voltage of single or two DC inputs, then filter the voltage through the full
bridge inverter and output smoothing filter, to achieve the required grid-connected harmonic quality.
According to the requirements of operating environment and system design for residential inverters, there are high-frequency insulation
and non-insulation circuits. In addition, due to the requirements of power supply storage and backup by users, some inverters have the
functional circuit for charging and discharging administration of lead battery.
Common topology of residential non-insulation inverter as follow:
Single MPPT Single Phase PV
Dual MPPTs Single Phase PV
●　Commercial Inverter
The single power volume of commercial inverters is about between 6KW-50KW, basically use the three phase output method. Have the
operating mode of high-frequency transformer insulation method and non-insulation method without transformer. In order to further
raise the overall operating efficiency, always use solar array with higher output voltage and adopt operating method of single stage three
phase inverters.
Pictures below are several commonly used topologies which adopt TAMURA integrated magnetics dual boost inductor and one three
coupling phase inductor.
Dual MPPTs Three-phase inverter Using One CB-DCL & One Coupling 3Φ-ACL
Four MPPTs Three-phase inverter Using Two CB-DCL & One Coupling 3Φ-ACL
●　Central & Station Inverter
For the features of high efficiency of per unit power generation and performance price ratio, Central & Station inverters are used widely
in some regions with abundant sunshine in the form of power station. Central solar inverters need be directly connected to high voltage AC
grid generation system for the large output power. So generally insulate and raise the three phase output voltage directly by using power
frequency transformer of high power. But the inverter itself operates in non-insulation method.
Because of the high power of single inverter, the operating frequency of traditional modes is 2-4KHz. As the high power semiconductor
technique have progressed,
progressed, especially
especially with
with the
theimproving
improvingof
ofmagnetic
magneticmaterial
materialand
anddevelopment
developmentofofhigh
highfrequency,
frequency,high
highefficiency
efficiencyreactor,
reactor
the operating frequency of new type high power inverters has entered era of 9-10KHz. These new type inverters are leading the industry
development with higher efficiency and higher performance price ratio.
■　Development trend of solar inverter
Refer to solar inverter, increasing the power converting-efficiency
is a eternal topic. But as the system efficiency becomes higher and
Technical Trend of PV Inverter
higher, almost reach 100%, further efficiency improvement is
accompanied by lower performance price ratio. Therefore, how to
maintain high efficiency as well as good price competitiveness is an
important topic nowadays. Contrast to the endeavor in improving
the efficiency of inverters, how to raise the overall inverter system
efficiency is becoming another important topic. In a solar array,
when the part shadow of 2%-3% area appears, for an inverter with
MPPT function, even a 20% around power drop will occur in the
circumstances of worse system power output. In order to adapted
to similar condition, using one to one MPPT or multiple MPPT
control function for single or part solar components is a quite
efficient method.
Because inverter system runs in grid-connected condition, the
system to ground leak current will cause critical safe problem.
Additionally, to increase system efficiency, solar array will be
connected in a series to get very high DC output. Thus, DC arc
welding easily appears when abnormal condition occurs. For the
high DC Voltage, arc extinction is very difficult, fire will be caused
easily. With the wide application of solar inverter system, the
system safe problem will be an important part of inverter technique.
Furthermore, power system is greeting the quick development and
spread of smart grid technology. A multitude of new energy
connected to the grid such as solar energy , brings new technique challenges to the stability of smart grid system. Designing faster, more
precise, more intelligent inverter system compatible with smart grid will be an essential condition of solar inverter system.
With the rapid development of global economy, traditional energy cost continues rising, hybrid electric vehicle and electric vehicle will
spread continuously; the shortage of power and digital society will make people rely more and more on power supply. For the foreseeable
future, comprehensive solar generating system including lead battery and large capacitor will greet strong market demand.
■　Important core magnetics and TAMURA techologies
With the development of semiconductor and power electric circuit, power semiconductor, MPPT control DSP, current detecting sensor
plays a decisive role in efficiency and cost, which improve performance and cost dramatically. But as the primitive passive components,
transformers, inductors, filters are developing very slowly. Expensive magnetics and large sum of copper product usually take a large
proportion of the inverter cost. These components which affect the efficiency and cost vastly are obviously the most important core
components in the inverter.
Since the inception in 1924, TAMURA continues on researching and producing transformer, reactors and other coiling products, and
is an important supplier in global coiling products, whose products are applied in consumer electronics, telecom, office automation,
information, transportation, industry, energy, aerospace, etc. TAMURA has constructed a global R & D system, which centered on Japan
technology department, also established advanced R & D centre in China and Europe separately. Focus on magnetic material, power
passive components and high-end R & D of application technology.
Major technologies related to solar inverter of TAMURA
Metal Dust Meterial Technology
Audio Noise Reducing Technology
Integrated Magnetics CB-Reactor Technology
Hybrid Magnetics Technology
➟　Provides the material platform of products design
➟　Improves products audio noise significantly
➟　High efficiency, high performance price ratio
➟　Optimizing magnetic path, high performance price ratio
➟　Benefits the high efficiency and low cost of the inverter
Spike BlockerTM EMI Reducing Technique
■　Standardized reactor products for residential inverters and the features
In order to help customers design and choose quickly, according to the specifications of non-insulated grid-connected residential
inverter, combining the different features of boost reactor and filter reactor, we have successfully developed standardized products based on
3 power levels of 3KW, 4KW, 5KW. Detail serialization classification as follows:
Power：
3KW， 4KW， 5KW
（
Due to customers'demand, can be expanded to the inverter application of 1.5KW-15KW ）
Type：
DCL， CB-DCL， ACL
Premium Grade will be released on Oct2012
Grade：
Premium， Golden， Silver
Sealed & Semi-molding will be released on Oct2012
Installation：H-mounting， V-mounting， Sealed， Semi-molding
Brief description of standardized series
DCL
Single boost inductor, suited to single MPPT inverter BOOST circuit
CB-DCL
Integrated magnetic dual boost inductor, containing two individual inductors, suited to dual boost circuit, less
loss than DCL of the same power
ACL
Coupling AC filter inductor, containing two coupling inductors, connected with inverter output AC L and N in
series separately
Premium
For Japan and other high-end market, possess high performance, low noise; larger inductor value, smaller DC
resistance
Golden
For western market, possess high performance price ratio, larger inductor value, slightly higher DC resistance,
low loss
Silver
Small DC resistance, extreme high efficiency, smaller inductance value
H-mounting H-mounting, impregnation and non-sealed, class F insulation
V-mounting V-mounting, impregnation and non-sealed, class F insulation
Sealed
H-mounting, sealed, water proof, class B insulation
Semi-moldin V-mounting, sealed, cooling structure, class B insulation
Standardized products naming rule
SF
1
2 2
3 0 B
-
P
Model Type
Inductance
Grade
SP：
Boost Reactor
101=100uH
102=1000uH(1.0mH)
152=1500uH(1.5mH)
P：Premium
S：Silver
SF：
AC Filter Reactor
PF：
SP+SF Module
G：Golden
Rating Current
& L-I Characteristic
30A=30A Flat L-I Curve
30B=30A Slide L-I Curve
181=180A
Mounting
H
0
Reserved Number
0~9, a~z, A-Z
0
D
S
Designing Code
J：Japan
S：Shanghai,
China
* : N/A
Number of Inductor
3 5
R
Terminal
F: Faston 250 Terminal
R: Ring Terminal
N： None
Lenth of Lead Wire
H：Horizontal
S：Single Inductor
35: Red 30cm，BLK 50cm
V：Vertical
D：Dual Inductor
None： Default 20cm
S：Sealed(H)
M：Semi-molding(H)
Part Number naming（ex.）
SP13211B-PH00DS35F Red 30cm，BLK 50cm 14AWG wire with F250 FASTON Quick disconnect
SP13211B-PH00DS33R Red 30cm，BLK 30cm 14AWG wire with R3.5-5 Ring tongue terminals
SP13220B-PH00SS43N Red 40cm，BLK 30cm 12AWG wire， No connector terminals
SP13211B-PH00DS
Standard product, 20cm 14AWG wire with R2.5-5 Ring tongue terminals
SP13220B-PH00SS
Standard product, 20cm 12AWG wire with R5.5-5 Ring tongue terminals
terminals
Corresponding table of series package and the shape methods
Sealed & Semi-molding type will be released on Oct.2012.
Features of standardized PV Reactor products
High efficiency
DCL in SP series adopts the hybrid structure of low loss metal powder-cored material and high performance ferrite magnetic.
Unique magnetic path design makes reactor maintain well L-I inductor performance as well as fine total balance between
the loss of component core loss, eddy current loss, high frequency skin effects. Component design not only considering the high
efficiency in rated load, but also considering the low loss pursuing in light load, increase system Europe efficiency and CEC
California energy efficiency.
CB-DCL in SP series is a boost inductor specialized in dual MPPT circuit, which has the advantages of DCL in SP series, besides,
adopting integrated magnetic technique makes the reactor magnetic oath more reasonable and optimizing, reduce the magnetic
loss significantly. Meanwhile, under the same power condition, each inductor only afford about 1/2 current rms, the DC loss
of the coil is improved obviously and has higher efficiency compared with same power DCL.
ACL in SF series chooses suitable high performance magnetics and reasonable magnetic path, takes advantage of the dual
inductors coupling features, balances the magnetic core loss and coil loss effectively. Furthermore reasonable coiling structure
keeps lower DC resistance. And the same as DCL, ensures high efficiency nominal power as well as considers the improvement
of Europe efficiency and CEC efficiency.
Low noise
Premium type in this series especially enhanced the silent noise design and process of DCL, CB-DCL and ACL, which is well suited
to Japan market which has strict demand on audio noise.
EMC
Due to the generation mechanism of inverter EMI, through special control on reactor structure and coiling process, it means
adopting Spike BlockerTM technique criterion, which is useful to improve the EMC of inverter system obviously. In the meantime,
it reduces the requirement of common-mode filter, thus increases the system efficiency and cuts down the system cost.
Multiple installation
This series offer customers the basic installation of H-mounting and V-mounting to be fit for different installing requirement.
Meanwhile, in order to avoid environment temperature rising inside inverter which is caused by heat emitter from reactor coils,
the series also offer the choice of heat conducting through Semi-molding method, makes customers can replace the corresponding
reactor directly under the condition of not increasing the cost and not changing the design size
In the waterproof application where reactor needs to be installed outside shell, this series can also offer sealed package which has the
waterproof function
1+1 Set
Refer to the different inverters between 3-5KW, users only need to choose the collocation of 1 DCL+ 1 ACL or 1CB-DCL + 1ACL, which
means one boost reactor with one AC filter can fit the system design.
High power increasing
Because this series have the guarantee of insulation construct design above 6mm, under the condition of not exceeding the reactor
maximum nominal current, customers can gain larger inverter power output through raising the non-load voltage of soalr arrays.
Because of the high frequency design in this series, under the condition of not exceeding the reactor maximum nominal current, customers
can expand input and output phase numbers through choosing suitable specifications among different series to be fit for design
cycle of different new products of higher power.
■　Table of residential inverter standardized reactors specifications( at20℃、with 20cm lead wire)
Power
Model
DCL
3KW
CB-DCL
ACL
DCL
4KW
CB-DCL
ACL
DCL
5KW
CB-DCL
ACL
Grade
Premium
Golden
Silver
Premium
Golden
Silver
Premium
Golden
Silver
Premium
Golden
Silver
Premium
Golden
Silver
Premium
Golden
Silver
Premium
Golden
Silver
Premium
Golden
Silver
Premium
Golden
Silver
Part Number
SP13218B-P□00SS□□□
SP13216B-G□00SS□□□
SP10217B-S□00SS□□□
SP13211B-P□00DS□□□
SP13209B-G□00DS□□□
SP10210B-S□00DS□□□
SF14221B-P□00DS□□□
SF14218B-G□00DS□□□
SF12218B-S□00DS□□□
SP12224B-P□00SS□□□
SP12220B-G□00SS□□□
SP10221B-S□00SS□□□
SP12213B-P□00DS□□□
SP12212B-G□00DS□□□
SP10212B-S□00DS□□□
SF14228B-P□00DS□□□
SF14225B-G□00DS□□□
SF12225B-S□00DS□□□
SP11229B-P□00SS□□□
SP11225B-G□00SS□□□
SP10225B-S□00SS□□□
SP11216B-P□00DS□□□
SP11214B-G□00DS□□□
SP10215B-S□00DS□□□
SF13235B-P□00DS□□□
SF13231B-G□00DS□□□
SF11231B-S□00DS□□□
L
1300 μH
1300 μH
1000 μH
1300 μH
1300 μH
1000 μH
1400 μH
1400 μH
1200 μH
1200 μH
1200 μH
1000 μH
1200 μH
1200 μH
1000 μH
1400 μH
1400 μH
1200 μH
1100 μH
1100 μH
1000 μH
1100 μH
1100 μH
1000 μH
1300 μH
1300 μH
1100 μH
I
18 A
16 A
17 A
11 A
9A
10 A
21 A
18 A
18 A
24 A
20 A
21 A
13 A
12 A
12 A
28 A
25 A
25 A
29 A
25 A
25 A
16 A
14 A
15 A
35 A
31 A
31 A
DCR typ.
30.3 mΩ
39.3 mΩ
34.9 mΩ
49.0 mΩ
56.8 mΩ
51.2 mΩ
18.0 mΩ
20.2 mΩ
18.2 mΩ
26.5 mΩ
31.8 mΩ
31.7 mΩ
41.2 mΩ
48.2 mΩ
44.0 mΩ
20.2 mΩ
21.1 mΩ
18.4 mΩ
22.5 mΩ
26.7 mΩ
24.7 mΩ
27.3 mΩ
34.5 mΩ
35.0 mΩ
15.7 mΩ
16.2 mΩ
16.9 mΩ
Remark
* The above content and parameters have the possibilities of changing without notifying the customers. The specifications acknowledgement provided to
the customers shall prevail on mass produce and odering .
Premium Grade will be released on Oct.2012.
■　Application guide
The principle of integrated magnetics CB reactor
As is shown in the following figure, integrated magnetic operating principle of integrated magnetic CB reactor is formed through two
independent inductor coils winding on the two arms, which share the common middle magnetic path.
If the current direction is like that in the figure, flux produced by two coils will cancel each other in the common middle core. If the current value
of two coils is close, then the flux in the common core part will cancel out. Although the effective cross-sectional area is small, for the
very small overall flux, the magnetic field strength B will be very low.
Picture below shows that even the rate of effective cross-sectional area of two arms to that of the middle pole is 1:0.9, middle pole
will be far from saturation.
Figure in the right is the CB inductor simulink result when the left coil current is maximum,
which makes core approach saturation under above condition. As is shown in the
figure, even the two side cores are near saturation and the cross-sectional area of
common middle core is small, it is far from saturation. At the moment, even the core
is working at high frequency, because of the little B of the middle pole, the core loss
of this part is very low naturally.
The classic connecting method of inductor
Because CB-DCL and ACL are four terminals component, the connecting direction must
be noticed when wiring. Refer to CB reactor, if the current direction is converse to that
in picture above, then the flux of two magnetic path will be overlaid in the middle
pole,as the middle pole area is small, so the inductor will be under saturation condition easily.
Refer to coupling design ACL, if the current direction of two coupling inductor in series is reversed, then two inductors in series equals
to half coils being shorted by the other. Entire inductor value will almost vanish.
Due to above reason, when using CB-DCL and ACL, the polarity correction must be ensured. Therefore, to avoid mistaking the polarity, the
polarity has been labeled by wire color in the design of this series. Refer to dual Boost CB-DCL, only the two red poles need be connected
to the input terminal separately. And to ACL, the two red poles need be connected to the middle point of inverter arms separately, thus,
the wrong connetcing won't happen.
Spike BlockerTM technique help you increasing efficiency and reducing cost
TM Refer to semiconductor devices in solar inverter Boost and AC inverter circuit, because of switching on/off under high
voltage condition, to increase operating efficiency, power devices need to be driven quickly to reduce the switching loss.
So, in the two sides of Boost DCL and AC filter ACL, very high dv/dt stress will appear in the inductor two ends. If the
inductor parasitic electrical parameters aren’t limited effectively, when the very high dv/dt changing occurs, the
complicated inner parasitic parameters net will generate very violent parasitic oscillating under the stimulating of high speed dV/dt
signal. In general, the oscillating frequency often distributes between the frequency range about several MHz to several hundreds of MHz, which
will cause serious EMI problem, so the multilevel filter must be used in input and output circuit, which increases circuit cost and even
more reduces the inverter efficiency.
Spike BlockerTM technique is to solve this problem in power soures, which combines the long period experience of inductors,
transformers design and producing , through controlling reactor structure, coiling process, producing technique strictly, the problem
in this series is improved to the maximum. Because of establishing specific productive technique and design criterion, the consistency
of EMC effect gets well control.
Amorphous U Core Boost
L
1
Picture ➀ shows the measured DCL current wave , when winding
with amorphous U core and the boost output power is 3KW.(20KHz)
Picture ➁ shows the measured DCL current wave , when winding
with Φ47 sendust ring core and the boost output power is 3KW.(20KHz)
Picture ➂ shows the measured DCL current wave when using
SP10217B-SH00SS（
3KW-DCL-Silver) with the same prototypes, same
power, same operating condition of ➀ and ➁.
From these measured waves, we can see that the EMC performance
is improved by adopting Spike BlockerTM technology. With the
dramatic improvement of EMC performance, smaller inductive value
of common-mode filter can meet the EMC requirements. The inverter
cost is down and the system efficiency is increased.
Ring Sendust Core Boost
L
1
TM
3
■　Products ordering and related issues
Global sales channels
TAMURA Group sells products through direct selling or sales agents. Implement the same markets and the same price principle.
TAMURA Group Global sales channels
1)
タムラ製作所埼玉事業所
2)
(주)한국다무라
3)
Tamura-Europe Ltd.
4)
Tamura Corporation of America
5)
台湾田村科技股份有限公司
6)
田村(中国)企业管理有限公司上海营业部
7)
合肥博微田村电气有限公司
8)
深圳市鹏源电子有限公司 (代理)
9)
深圳市铂科磁材有限公司 (代理)
2
快捷方便的销售型式
Sample MOQ
1pcs
➟ Provided by Tamura Distributor Offices
MP MOQ
1000pcs/each PN
* Only Within China Mainland & Hongkong
MP L/T
1 Month (after 1 month of FC) *
First Lot's delivery may vary with stock condition.
TM
DC Reactor for (Buck-) Boost Converter
Rev. C
Feb, 2015
Typical Application
Features
3KW,4KW,5KW e×t. to 1.5~15KW
Grade: Premium-S
■
■
Competitive Cost Performace
Open Structure makes Easy Modification
■
■
PV Inverter,UPS
TM
Spike Blocker Better EMC
H-mounting,V-mounting
High Frequency 20~50KHz
Extra Low Audio Noise
■
■
■
■
Grade
Premium-S
Extra Low Noise, High Performance
Mounting Models （DCL）
H-Mounting
V-Mounting
Electric Characteristics （DCL）
Power
Moldel
Grade
Part Number
L ※1
I ※2
3KW
DCL
Premium-S
SP10218B-PS□00SS□□□
1000μH
18A
4KW
DCL
Premium-S
SP10224B-PS□00SS□□□
1000μH
24A
5KW
DCL
Premium-S
SP10229B-PS□00SS□□□
1000μH
29A
※1　At　0A　※2　As a continuous load
Specification （DCL）
Items
Testing Condition
Testing Point
Specification
Inductance
20KHz, 1V HP4284 or Equivalent
L: S-F
as L-I Curve
Dielectric Strength
E×TECH 7142 or Equivalent
Coil - Core,Chasis
2.5KV AC, 50Hz, 1Min. <2mA
Insulation Resistance
E×TECH 7142 or Equivalent
Coil - Core
Core,Chasis
Chasis
>100MΩ 0.5KV
>100MΩ,
0 5KV DC
Class F Insulation, -25℃～155℃
Operating Temperature
-25℃～75℃
Storage Temperature
See Spec. detail
Dimension (mm)
Part Number Designation （DCL）
E×ample: SP11218B-PSH00SS***
102
18
PS
H
Inductance
Current
Grade
Mounting
3KW:102
18A
Premium-S
H-Mounting
4KW:102
24A
5KW:102
29A
SP
B-
00
**
*
Lead wire lenth
Terminal type
SS
** cm Lead wire F：250 FASTON Quick disconnect terminals
35 → 35 cm R：Ring tongue terminals
V-Mounting
Typical L-I Curve Characteristics （DCL）
4KW-DCL
3KW-DCL
5KW-DCL
1200μH
1200μH
1200μH
1000μH
1000μH
1000μH
800μH
800μH
800μH
600μH
600μH
600μH
400μH
400μH
400μH
200μH
200μH
200μH
0μH
0μH
0A
5A
10A
15A
20A
25A
0μH
0A
5A
10A
15A
20A
25A
30A
0A
5A
10A
15A
20A
25A
30A
35A
●　Providing fast L-I modification products to meet custom requirements.
.
Dimensions （DCL）
Grade
Part Number
3KW
Premium-S
SP10218B-PS□00SS
4KW
Premium-S
SP10224B-PS□00SS
5KW
Premium-S
SP10229B-PS□00SS
Structure
H
V
H
V
H
V
A
C
B
114
78
129
78
129
90
C
50
62
50
62
60
78
D
97
65
112
65
112
76.5
E
5
5x8
5
5x8
5
5x8
F
5
125
5
125
5
140
G
125
93
125
108
140
106
H
80
85
80
85
90
100
F
A
F
D
E
D
B
C
E
G
G
H
B
Dimensions (mm)
A
81
81
81
81
93
98
H
Power
H-Mounting Dimension
V-Mounting Dimension
.
TM
AC Reactor for Inverter
Rev. C
Feb. 2015
Typical Application
Features
■
■
■
■
■
■
3KW,4KW,5KW e×t. to 1.5~15KW
Grade:Premium-S
■
■
■
TM
Spike Blocker Better EMC
H-mounting,V-mounting
High Frequency 20~50KHz
Extra Low Audio Noise
2 Coupling Inductors in 1 Reactor
Competitive Cost Performace
Open Structure makes Easy Modification
Grade
Premium-S
PV Inverter,UPS
Extra Low Noise, High Performance
Mounting Models （ACL）
H-Mounting
V-Mounting
(NOTE ACL:In serial)
Electric Characteristics （ACL）
I ※2
Power
Moldel
Grade
Part Number
L ※1
3KW
ACL
Premium-S
SF12221B-PS□00SS□□□
1200μH
21A
4KW
ACL
Premium-S
SF14228B-PS□00SS□□□
1400μH
28A
5KW
ACL
Premium-S
SF13235B-PS□00SS□□□
1300μH
35A
※1　At　0A　※2　As a continuous load
Specification （ACL）
Items
Testing Point
Testing Condition
Inductance
20KHz, 1V HP4284 or Equivalent
Dielectric Strength
E×TECH 7142 or Equivalent
Insulation Resistance
E×TECH 7142 or Equivalent
Specification
L: S-F
as L-I Curve（in series）
Coil - Core,Chasis
2.5KV AC, 50Hz, 1Min. <2mA
Coil -Coil
Coil
1.5KV AC, 50Hz, 1Min. <2mA
2mA
Coil - Core,Coil,Chasis
>100MΩ, 0.5KV DC
Class F Insulation, -25℃～155℃
Operating Temperature
-25℃～75℃
Storage Temperature
See Spec. detail
Dimension (mm)
Part Number Designation （ACL）
E×ample: SF12221B-PSH00DS***
SF
122
21
PS
H
Inductance
Current
Grade
Mounting
3KW:122
21A
Premium-S
H-Mounting
4KW:142
28A
5KW:132
35A
B-
00
**
*
Lead wire lenth
Terminal type
DS
** cm Lead wire F：250 FASTON Quick disconnect terminals
35 → 35 cm R：Ring tongue terminals
V-Mounting
Typical L-I Curve Characteristics （ACL）
5KW-ACL
4KW-ACL
3KW-ACL
1600μH
1600μH
1600μH
1400μH
1400μH
1400μH
1200μH
1200μH
1200μH
1000μH
1000μH
1000μH
800μH
800μH
800μH
600μH
600μH
600μH
400μH
400μH
400μH
200μH
200μH
200μH
0μH
0μH
0μH
0A
5A
10A
15A
20A
25A
0A
5A
10A
15A
20A
25A
30A
0A
5A
10A
15A
20A
25A
30A
35A
●　Providing fast L-I modification products to meet custom requirements.
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Dimensions （ACL）
Power
3KW
4KW
5KW
Grade
Part Number
Premium-S
Premium-S
Premium-S
SF12221B-PS□00DS
SF14228B-PS□00DS
SF13235B-PS□00DS
Structure
B
C
D
E
F
G
H
H
81
119
50
102
5
5
125
72
V
81
78
62
65
5x8
125
98
-
H
81
134
50
117
5
5
125
72
V
81
78
62
65
5x8
125
113
-
H
93
134
60
117
5
5
140
77
V
98
90
78
76.5
5x8
140
111
-
A
C
F
A
F
E
D
B
C
D
B
Dimensions (mm)
A
E
H
G
G
H-Mounting Dimension
V-Mounting Dimension
Sound pressure level [dB]
Noise level vs Frequency (Reference)
70
60
Premium‐S
50
Premium
40
30
20
10
0
0.00E+00 2.00E+03 4.00E+03 6.00E+03 8.00E+03 1.00E+04 1.20E+04 1.40E+04 1.60E+04 1.80E+04 2.00E+04
Frequency[Hz]
.