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Features
■ Balanced Mini-TRIGARD™
■ High surge current rating, low insertion loss
(5 mm diameter, 7.5 mm length)
■ Ideal for board level protection of
broadband circuits
■ Symmetrical breakdown voltage (L-L, L-G)
■ Leadless, surface mount for economical
assembly
■ Stable breakdown throughout life
■ RoHS compliant* versions available
2038 Series Miniature Symmetrical 3-Electrode Surface Mount Gas Discharge Tube
Bourns offers a symmetrical surface mount (SM) 3-electrode GDT surge protection device. The industry-leading quality and features of the
Bourns® miniature-TRIGARDTM series GDT continue in the 2038 symmetrical version. The 2038 series is ideal for board level protection of
high bandwidth applications such as xDSL, cable broadband and high speed Ethernet, due to its symmetrical turn on characteristics as well as
high energy-handling capability, long and stable life performance and low capacitance of less than 1 pF. The 2038 series breakdown
voltages are nearly equal line to line as well as line to ground. Bourns® Gas Discharge Tubes (GDT) are designed to prevent damage from
transient disturbances by acting as a “crowbar” in creating a virtual short-to-ground circuit during conduction. When an electrical surge
exceeds the defined breakdown voltage level of the GDT, the gas becomes ionized and rapid conduction takes place. When the surge passes
and the system voltage returns to normal levels, the GDT returns to its high-impedance (off) state.
Characteristics
Test Methods per ITU-T (CCITT) K.12 and IEEE C62.31
Characteristic
DC Sparkover ± 25 % @ 100 V/s
L1/L2 to Gnd (NOTE 1)
Typical Impulse Sparkover
L1/L2 to Gnd
100V/μs
1000V/μs
Characteristic
DC Sparkover ± 25 % @ 100 V/s
L1/L2 to Gnd (NOTE 1)
Typical Impulse Sparkover
L1/L2 to Gnd
100V/μs
1000V/μs
Model No.
2038-15-SM
2038-20-SM
2038-23-SM
2038-30-SM
2038-35-SM
150 V
200 V
230 V
300 V
350 V
350 V
500 V
425 V
575 V
450 V
600 V
500 V
650 V
600 V
750 V
2038-42-SM
2038-47-SM
2038-60-SM
2038-80-SM
2038-110-SM
420 V
470 V
600 V
800 V
1100 V
675 V
850 V
750 V
950 V
850 V
1100 V
1150 V
1400 V
1500 V
1700 V
Model No.
Impulse Transverse Delay ............................... 100 V/µs............................................................< 50 ns
Insulation Resistance (IR) ............................... 100 V ................................................................> 109 Ω
Glow Voltage ................................................... 10 mA................................................................~ 70 V
Arc Voltage ...................................................... 1 A .....................................................................~ 10 V
Glow-Arc Transition Current .......................................................................................................< 0.5 A
Capacitance..................................................... 1 MHz ...............................................................< 1 pF
DC Holdover Voltage (NOTE 2) ......................... 135 V (80 V for Model 2038-15) .......................< 150 ms
Impulse Discharge Current .............................. 10000 A, 8/20 µs (NOTE 3) .................................1 operation min.
5000 A, 8/20 µs .................................................> 10 operations
200 A, 10/1000 µs .............................................> 300 operations
200 A, 10/700 µs ..............................................> 500 operations
10 A, 10/1000 µs ..............................................> 1500 operations
Alternating Discharge Current ......................... 10 Arms, 1 s (NOTE 3) ........................................1 operation min.
5 Arms, 1 s ........................................................> 10 operations
Operating Temperature............................................................................................................... -40 to +90 °C
Climatic Category (IEC 60068-1)................................................................................................ 40/90/21
Notes:
• 2038-35 UL Recognized
, file E153537, 2038-110 CSA Approved
, file LR93265 (UL 1449).
• The rated discharge current for Mini-TRIGARD™ GDTs is the total current equally divided between each line to ground.
• Surface Mount (SM) parts may show a temporary increase in DCBD after the solder reflow process. Most devices will recover
within 24 hours time. It should be noted that there is no quality defect nor change in protection levels during the temporary change
in DCBD.
• Sparkover limits after life ±30 %. IR >108 Ω.
• Operating characteristics per RUS PE-80 and Telcordia GR 1361 available on request.
• At delivery AQL 0.65 Level II, DIN ISO 2859.
1 Line to Line DC Sparkover tolerance typically less than +30 % at 100 V/s.
2 Network applied.
3 DC Sparkover may exceed ±30 % but will continue to protect without venting.
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
2038 Series Miniature Symmetrical 3-Electrode Surface Mount Gas Discharge Tube
Product Dimensions
Recommended Pad Layout
7.5
(.298)
1.6
(.063)
1.3
(.054)
5.0
(.197)
DIA.
5.6
(.220)
5.0
(.197)
4.8
(.189)
DIA.
0.53
(.021)
0.53
(.021)
3.3
(.130)
8.2
(.323)
DIMENSIONS:
How to Order
MM
(INCHES)
2038 - xx - SM - RP LF
Model Number Designator
Voltage (Divided by 10)
Surface Mount
Packaging Options*
Blank = Bulk Packaging (Standard)
RP = Reelpack - 1000 pcs./reel (Optional)
RP2 = Reelpack - 1000 pcs./reel (Optional)
RoHS Compliant Option
Blank = Standard Product
LF = RoHS Compliant Product
*The optional -RP & -RP2 reelpacks contain 1000 pcs./reel. The reels are
330 mm (13 inches) in diameter. The -RP reelpack is 18 mm (0.71 inches)
wide. The -RP2 reelpack is 26 mm (1.02 inches) wide.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
2038 Series Miniature Symmetrical 3-Electrode Surface Mount Gas Discharge Tube
Packaging Specifications
The Model 2038-xx-SM ships standard bulk pack, 100 pieces per bag.
The optional -RP & -RP2 reelpacks contain 1000 pcs./reel. The reels are 330 mm (13 inches) in diameter. The -RP reelpack is 18 mm
(0.71 inches) wide. The -RP2 reelpack is 26 mm (1.02 inches) wide.
-RP
4.0
(.158)
2.0
(.079)
1.7
(.067)
16.0
(.63)
7.5
(.30)
12.0
(.472)
-RP2
1.75
(.069)
2.0
(.079)
4.0
(.158)
12.0
(.472)
1.50
DIA.
(.059)
A
11.50
(.453)
24.00
(.945)
3°
22.25
(.876)
1.50
(.059)
DIA.
3°
4.35 ± 0.10
(.171 ± .004)
A
3.15 ± 0.10
(.124 ± .004)
5.70 ± 0.10
(.225 ± .004)
9.35 ± 0.10
(.368 ± .004)
5.50 ± 0.10
(.217 ± .004)
DIMENSIONS:
MM
(INCHES)
TOLERANCES:
REV. I 12/12
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
.13
UNLESS OTHERWISE NOTED
(.005)
.41
(.016)
7.85 ± 0.10
(.309 ± .004)
14.90 ± 0.10
(.587 ± .004)
SECTION A-A
VDSL
Driver Side Protection
Solution Products
Objective
Compliance
VDSL provides fast data transmission,
usually over a twisted pair of copper wires.
This solution protects these ports against
surge and power contact threats.
ITU-T Basic and Enhanced
GR-1089-CORE
Solution
2038-110-SM-RPLF
1 GDT: 2038-110-SM-RPLF
1 Thyristor: TISP4P015L1NR-S
1 Diode Bridge: CD143A-SR70
Alternate Recommendations
Other PortNote® Solutions:
• VDSL: Line Side Protection
Variations of this circuit are available depending on
specific design constraints; contact your local Bourns
technical representative for more information.
Benefit
This solution provides protection on the driver side
without impairing the VDSL 17 MHz signal.
TISP4P015L1NR-S
CD143A-SR70
2038-110-SM-RPLF
VDSL
Driver
Design Kit
PN-DESIGNKIT-36
CD143A-SR70
The schematic above illustrates the application protection and does not constitute the complete
circuit design. Customers should verify actual device performance in their specific applications.
Americas: Tel +1-951 781-5500
Fax +1-951 781-5700
Europe: Tel +41-(0)41 768 55 55 Asia-Pacific: Tel +886-2 256 241 17
Fax +41-(0)41 768 55 10 TISP4P015L1NR-S
Fax +886-2 256 241 16
COPYRIGHT© 2012 • BOURNS, INC. • 6/12 • e/CPK1160 • “PortNote” is a registered service mark of Bourns, Inc.
“Bourns” is a registered trademark of Bourns, Inc. in the U.S. and other countries.
Bourns® PortNote® solutions provide protection
recommendations for typical port threats.
For more information, go to:
www.bourns.com
or email: protection@bourns.com
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TISP4P015L1N THRU TISP4P035L1N
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LOW CAPACITANCE
BIDIRECTIONAL THYRISTOR OVERVOLTAGE PROTECTOR
TISP4P0xxL1N Overvoltage Protector Series
SOT23-5 Package (Top View)
Designed for ADSL, ADSL2, VDSL, VDSL2 protection
Ion-Implanted Breakdown Region
- Precise and Stable Voltage
Low Voltage Overshoot Under Surge
( Ti p)
1
NU
2
(Ring)
3
5
( Ti p)
4
(Ring)
Low Off-State Capacitance
VDRM
V(BO)
V
V
TISP4P015L1N
TISP4P020L1N
8
12
15
20
TISP4P025L1N
16
25
TISP4P035L1N
24
35
Device Name
Terminal typical application names
shown in parenthesis.
NU - Non-usable; no external electrical
connection should be made to this terminal.
MD-SOT23-5-001-a
Rated for International Surge Wave Shapes
IPPSM
Wave Shape
Standard
8/20
IEC 61000-4-5
30
10/1000
GR-1089-CORE
18
Device Symbol
A
(Tip)
Description
This range of devices is designed to protect xDSL line-driver
interfaces from overvoltages up to rated limits. Overvoltages are
(Ring)
normally caused by a.c. power-system or lightning-flash disturbances which are induced or conducted onto the telephone line.
SD-TISP4-002-a
These symmetrical protectors are two-terminal thyristor-crowbar
devices. They can be used to protect between conductors, or a
pair of devices can be deployed to protect from line to ground.
When placed between the xDSL line driver IC and the transformer, this protector will clamp and switch into a low-impedance state,
safely diverting the energy transferred by the xDSL coupling transformer. The low capacitance design makes this device suitable for
designs from ADSL all the way up to 30 MHz VDSL2.
Telecom ports need protection against Common Mode (Longitudinal) and Differential (Metallic) surges, to comply with international
standards such as ITU-T K.20, K.21 or K.45, Telcordia GR-1089-CORE and YD/T. Common Mode surges are resisted by the galvanic
isolation of the coupling transformer which is commonly rated to 2 kV or greater. Differential surges can be transmitted by the
transformer, and can stress the Line Driver Interface IC. As the xDSL interface circuit is designed to operate from 3 kHz to to 30 MHz,
nearby high frequency events - such as cable flashover or primary protection activation - can generate damaging conditions for the
interface requiring this type of protection.
Please contact your Bourns representative if the protection voltage you require is not listed.
How to Order
Device
Package
Carrier
Order As
Marking Code
Reel Quantity
TISP4P0xxL1N
SOT23-5
Embossed Tape Reeled
TISP4P0xxL1NR-S
Pxx
10000
Insert xx corresponding to device name.
OCTOBER 2009
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
TISP4P0xxL1N Overvoltage Protector Series
Absolute Maximum Ratings, TA = 25 °C (Unless Otherwise Noted)
Rating
‘4P015L1N
‘4P020L1N
‘4P025L1N
‘4P035L1N
Repetitive peak off-state voltage
S ym b ol
Value
U nit
VDRM
±8
±12
±16
±24
V
Non-repetitive peak impulse current (see Notes 1, 2 and 3)
8/20 µs (IEC 61000-4-5, 1.2/50 µs voltage, 8/20 current combination wave generator)
10/1000 µs (GR-1089-CORE, 10/1000 µs voltage wave shape)
Junction temperature
Storage temperature range
IPPSM
±30
±18
A
TJ
-40 to +150
°C
Tstg
-65 to +150
°C
NOTES: 1. Initially the device must be in thermal equilibrium with TJ = 25 °C.
2. The surge may be repeated after the device returns to its initial conditions.
3. Rated currents only apply if pins 1 & 5 (Tip) are connected together and pins 3 & 4 (Ring) are connected together.
Electrical Characteristics, TA = 25 °C (Unless Otherwise Noted)
Parameter
IDRM
V(BO)
Repetitive peak off-state current
Breakover voltage
IH
Holding current
CO
Off-state capacitance
ΔC
Delta-capacitance
Test Conditions
Min
Typ
VD = VDRM
dv/dt = ±250 V/ms, RSOURCE = 300 Ω
IT = ±5 A, di/dt = ±30 mA/ms
f = 1 MHz, Vd = 1 V rms, VD = 2 V
f = 1 MHz, Vd = 1 V rms, VD = 1 V to VDRM
‘4P015L1N
‘4P020L1N
‘4P025L1N
‘4P035L1N
‘4P015L1N
‘4P020L1N
‘4P025L1N
‘4P035L1N
‘4P015L1N
‘4P020L1N
‘4P025L1N
‘4P035L1N
‘4P015L1N
‘4P020L1N
‘4P025L1N
‘4P035L1N
± 30
±10
±30
±30
6.5
6
5.5
3.5
2
2.5
3
2
Max
Unit
±1
µA
±15
±20
±25
±35
V
mA
pF
pF
OCTOBER 2009
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
TISP4P0xxL1N Overvoltage Protector Series
Parameter Measurement Information
+i
I PPSM
Quadrant I
Switching
Characteristic
ITSM
ITRM
IT
V(BO)
VT
I(BO)
IH
V (BR)M
V DRM
-v
I(BR)
V (BR)
V (BR)
I(BR)
IDRM
VD
ID
ID
VD
IDRM
+v
V DRM
V (BR)M
IH
I(BO)
VT
V(BO)
IT
ITRM
ITSM
Quadrant III
Switching
Characteristic
I PPSM
-i
Figure 1. Voltage-Current Characteristic for Tip and Ring Terminals
All Measurements are Referenced to the Ring Terminal
OCTOBER 2009
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
PM-TISP4xxx-001-a
TISP4P0xxL1N Overvoltage Protector Series
Typical Characteristics
CAPACITANCE
vs
OFF-STATE VOLTAGE
TC-4PN-001
10
f = 1 MHz
Vd = 1 VRMS
TJ = 25 °C
9
8
Capacitance - pF
7
6
5
TISP4P015L1N
4
TISP4P020L1N
3
TISP4P025L1N
2
TISP4P035L1N
1
0
0
2
4
6
8
10 12 14 16 18 20 22 24
VD - Off-State Voltage - V
OCTOBER 2009
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
TISP4P0xxL1N Overvoltage Protector Series
VDSL Application Examples
MF-RX018-250
TIP
+ tº
Tx
TISP4400M3
Rx
Ring
xDSL transceiver
TISP4P035L1N
Figure 3.
MF-RX018-250
TIP
+ tº
Tx
TISP4400M3
Rx
Ring
xDSL transceiver
TISP4P020L1N
Figure 4.
TIP
Tx
2035-35-SM
Rx
Ring
xDSL transceiver
CD143A-SR70
TISP4P035L1N
Figure 5.
Recommended PCB Layout
T
1
NU
2
R
3
5
T
PCB Track
4
R
PCB Track
MD-SOT223-5-xxx
Figure 6.
OCTOBER 2009
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
Bourns Sales Offices
Region
Phone
Fax
The Americas:
Europe:
Asia-Pacific:
+1-951-781-5500
+41-41-7685555
+886-2-25624117
+1-951-781-5700
+41-41-7685510
+886-2-25624116
Region
Phone
Fax
The Americas:
Europe:
Asia-Pacific:
+1-951-781-5500
+41-41-7685555
+886-2-25624117
+1-951-781-5700
+41-41-7685510
+886-2-25624116
Technical Assistance
www.bourns.com
Bourns® products are available through an extensive global network of representatives, agents and distributors.
To obtain technical applications assistance, a quotation, or to place an order, contact a Bourns representative in your area.
“TISP” is a trademark of Bourns Ltd., a Bourns Company, and is Registered in the U.S. Patent and Trademark Office.
“Bourns” is a registered trademark of Bourns, Inc. in the U.S. and other countries.
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Features
■
■
■
■
■
■
■
Applications
Lead free as standard
RoHS compliant*
Halogen free**
ESD protection
Protects 2 lines
Low leakage current: <1 µA
Low capacitance: 3 pF
■
■
■
■
Cell phones
Desktops
Laptops & notebooks
Portable electronics
CD143A-SR70 – Steering Diode Array Series
General Information
The CD143A-SR70 device provides ESD protection for the external
ports of portable electronic devices such as cell phones, handheld
electronics and personal computers. The device also provides EFT
and surge protection.
4
1
The ESD protection provided by the component enables a data
port to withstand a minimum ±8 KV Contact / ±15 KV Air Discharge
per the ESD test method specified in IEC 61000-4-2. The device
measures 2.80 mm x 1.20 mm and is available in a SOT-143
package intended to be mounted directly onto an FR4 printed
circuit board.
2
3
Electrical Characteristics (@ TA = 25 °C Unless Otherwise Noted)
Parameter
Capacitance @ 0 V 1 MHz*
Symbol
Min.
Nom.
Cj
Repetitive Peak Reverse Voltage
Max.
Unit
10
pF
70
V
Reverse Breakdown Voltage I @ 50 µA
VBR
Forward Clamping Voltage 8/20 µs IPP @ 1 A
VFC
1.5
V
Forward Clamping Voltage 8/20 µs IPP @ 24 A
VFC
7
V
IR
1
µA
Reverse Leakage Current @ VRRM
85
V
ESD Protection: IEC 61000-4-2
Contact Discharge
Air Discharge
±8
±15
kV
kV
EFT Protection: IEC 61000-4-4 @ 5/50 ns
40
A
Surge Protection: IEC 61000-4-5 @ 8/20 µs
Level 2 (Line-Gnd) & Level 3 (Line-Line)
24
A
*Measured between I/O pins and ground. 3 pF typical between I/O pins.
Thermal Characteristics (@ TA = 25 °C Unless Otherwise Noted)
Parameter
Symbol
Min.
Nom.
Max.
Forward Peak Pulse Current (tp = 8/20 µs )
IPP
Operating Temperature Range
TJ
-55
25
+150
°C
TSTG
-55
25
+150
°C
Storage Temperature Range
24
Unit
A
* RoHS Directive 2002/95/EC Jan 27, 2003 including Annex.
** Bourns follows the prevailing definition of “halogen free” in the industry. Bourns considers a product to be “halogen free” if (a) the Bromine (Br) content is 900 ppm or less;
(b) the Chlorine (Cl) content is 900 ppm or less; and (c) the total Bromine (Br) and Chlorine (Cl) content is 1500 ppm or less.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
CD143A-SR70 – Steering Diode Array Series
Product Dimensions
This is a molded JEDEC SOT-143 device. It weighs approximately 35 mg and has a
flammability rating of UL 94V-0. The dimensions for the packaged device are shown below.
Dimensions
A
2.80 - 3.04
(0.110 - 0.12)
B
1.78 - 2.03
(0.070 - 0.080)
C
2.11 - 2.48
(0.083 - 0.098)
D
1.20 - 1.39
(0.047 - 0.055)
E
0.39 - 0.50
(0.015 - 0.020)
F
0.79 - 0.93
(0.031 - 0.037)
G
0.08 - 0.15
(0.003 - 0.006)
H
0.46 - 0.60
(0.018 - 0.024)
I
0.84 - 1.14
(0.033 - 0.045)
J
0.72 - 0.83
(0.028 - 0.033)
K
0.013 - 0.10
(0.0005 - 0.004)
A
B
D
G
C
H
E
F
DIMENSIONS:
I
J
MM
(INCHES)
K
Recommended Pad Layout
This is the footprint recommended for this SOT-143 device.
2.85
(0.112)
Block Diagram
1.90
(0.075)
The device block diagram below includes the pin names and basic
electrical connections associated with each channel.
0.85
(0.033)
4
1.05
(0.041)
1.90
(0.075)
1
2.75
(0.108)
1.70
(0.067)
0.85
(0.033)
2
1.20
(0.047)
0.80
(0.031)
DIMENSIONS:
3
0.85
(0.033)
MM
(INCHES)
Typical Part Marking
CD143A-SR70..............................................................................PSA
Device Pin Out
Pin
Function
1
VN
2
I/O 1
3
I/O 2
4
VP
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
CD143A-SR70 – Steering Diode Array Series
Packaging Information
The surface mount product is packaged in an 8 mm x 4 mm tape and reel format per EIA-481 standard.
P
0
P
1
d
T
E
Index Hole
120 °
F
D2
W
A
D1 D
P
B
Trailer
.......
.......
End
C
Device
.......
.......
10 pitches (min.)
.......
.......
Leader
.......
.......
10 pitches (min.)
W1
Start
DIMENSIONS:
MM
(INCHES)
Direction of Feed
Item
Symbol
Carrier Width
A
Carrier Length
B
Carrier Depth
C
Sprocket Hole
d
Reel Outside Diameter
D
Reel Inner Diameter
D1
Feed Hole Diameter
D2
Sprocket Hole Position
E
Punch Hole Position
F
Punch Hole Pitch
P
Sprocket Hole Pitch
P0
Embossment Center
P1
Overall Tape Thickness
T
Tape Width
W
Reel Width
W1
Quantity per Reel
—
SOT-143
2.75 ±0.10
(0.108 - 0.004)
3.30 ±0.10
(0.130 - 0.004)
1.25 ±0.10
(0.049 - 0.004)
1.55 ±0.05
(0.061 - 0.002)
178
(7.008)
50.0
Min.
(1.969)
13.0 ±0.20
(0.512 - 0.008)
1.75 ±0.10
(0.069 - 0.004)
3.50 ±0.05
(0.138 - 0.002)
4.00 ±0.10
(0.157 - 0.004)
4.00 ±0.10
(0.157 - 0.004)
2.00 ±0.05
(0.079 - 0.002)
0.20 ±0.10
(0.008 - 0.004)
8.00 ±0.20
(0.315 - 0.008)
14.4
Max.
(0.567)
How To Order
CD 143A - SR 70
Common Code
Chip Diode
Package
• 143A = SOT-143
Model
SR = Steering Diode Array
Repetitive Peak Reverse Voltage
70 = 70 VRWM (Volts)
Asia-Pacific:
Tel: +886-2 2562-4117 • Fax: +886-2 2562-4116
Europe:
Tel: +41-41 768 5555 • Fax: +41-41 768 5510
The Americas:
Tel: +1-951 781-5500 • Fax: +1-951 781-5700
www.bourns.com
3,000
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
REV. 06/11