Eurohm Resistive Products
Contents
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Thick
Thick Film Chip Resistors
Metal Film Resistors
Fusible ¼ Watt Resistors
Carbon Film Resistors
Wirewound, 2.5 Watt Resistors
Metal Oxide, 3 Watt Resistors
Chip Resistor Array
2-3
4-5
6
7-8
9
10
1111-12
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Thick Film Chip Resistors
type SMR
A range of surface mount resistors with industry standard chip sizes.
Features :
Meets JIS specification
High performance and reliability
Nickel barrier terminations
Suitable for wave and reflow soldering
Zero-ohm available
Type
SMR63
SMR85
SMR126
0603
0805
1206
0.063W
0.125W
0.25W
Working Voltage
50V
150V
200V
Overload Voltage
100V
300V
400V
50mΩ
50mΩ
50mΩ
Current Rating
1A
2A
2A
Peak Current
3A
10A
10A
3 Digit resistance code
2 & 5% : 3 Digit resistance code
1% : 4 Digit resistance code
Size Code
Power Dissipation at 70°C
Zero Ohm
Resistance
Body Marking
MARKING
CONSTRUCTION
Laser trimmed
resistive element
Each resistor is marked with a three or
four digit code to designate the nominal
resistance value.
2 & 5% : 3 Digit resistance code
1% : 4 Digit resistance code
Protective glass
coating
Silver-palladium
inner termination layer
3 - Digit marking
For values upto 91 Ω the R is used as a
decimal point. For values of 100 Ω or
greater the first 2 digits are significant, the
third indicates the number of zeros to follow.
High purity alumina
4 - Digit marking
Tin-lead outer termination
a
Nickel barrier
H
b
For values upto 988 Ω the R is used as a
a decimal point. For values of 1kΩ or
greater the first 3 digits are significant, the
fourth indicates the number of zeros to follow.
10 3
Zero-ohm
W
This has an unmarked blue coating.
L
Chip Size
L
W
H
a
b
0603
1.60 ±0.10 0.80 ±0.10 0.45 ±0.10 0.30 ±0.20 0.30 ±0.20
0805
2.00 ±0.10 1.20 ±0.15 0.55 ±0.10 0.40 ±0.20 0.40 ±0.20
1206
3.10 ±0.10 1.60 ±0.15 0.55 ±0.10 0.50 ±0.25 0.50 ±0.25
Reformatted by Anglia 9907
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Thick Film Chip Resistors
type SMR
GENERAL
SPECIFICATION
Test
Method
Resisitance Tolerance
JIS-C-5202 5.1
ALL CHIP SIZES
Resistance Range
1%
2%
5%
10R to 1M0 (E24)
10R to 1M0 (E24)
1R0 to 10M (E24)
± 100 ppm/°C
± 200 ppm/°C
± 200 ppm/°C
Over 95% termination coverage
Over 95% termination coverage
1000MΩ
1000MΩ
1000MΩ
-55°C to +125°C
-55°C to +125°C
-55°C to +125°C
Temperature Coefficient JIS-C-5202 5.2
Solderability
JIS-C-5202 6.5 Over 95% termination coverage
Insulation Resistance
JIS-C-5202 5.6
Operating Temperature Range
Performanace
Short term overload
JIS-C-5202 5.5
±(1%+0.05R)
±(2%+0.1R)
±(2%+0.1R)
Terminal Stregth
JIS-C-5202 6.1
±(1%+0.1R)
±(1%+0.1R)
±(1%+0.1R)
Temperature cycling
JIS-C-5202 7.4
±(0.5%+0.05R)
±(1%+0.1R)
±(1%+0.1R)
Soldering Heat
JIS-C-5202 6.4
±(0.5%+0.05R)
±(1%+0.1R)
±(1%+0.1R)
Damp Heat (1000 hrs) JIS-C-5202 7.9
±(1%+0.1R)
±(3%+0.1R)
±(3%+0.1R)
Endurance (1000 hrs)
±(1%+0.1R)
±(3%+0.1R)
±(3%+0.1R)
JIS-C-5202 7.1
P.C.B. PAD PATTERN
PERCENT RATED LOAD (%)
DERATING CURVE
100
A
80
D
60
B
40
B
C
20
0
0 20 40
70
0603
0805
1206
100 125 140
AMBIENT TEMPERATURE (°C)
PACKAGING
TAPE
B
0.3
0.3~0.4
0.8
C
0.2
0.3
0.6
D
0.52~0.92
1.1~1.3
1.4~1.8
REEL
Material : Plastic
Quantity : 5000pcs (standard)
Material : Paper
1.5
Ø1.5
4.0
2.0
A
2.7
3.5
5.0
4.0
10
1.75
5.0
B
A
3.5 8.0
1.1
max.
0603
0805
1206
A
1.1
1.65
2.0
B
1.9
2.4
3.5
Ø80
Ø
178
Ø
13
Larger reels (330mm dia.) containing 20K pcs
are available to special factory order.
Reformatted by Anglia 9907
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Metal Film Resistors
type MCR / MF
A range of high quality resistors using superior metal film technology.
Features :
High stability and reliability
SPECIFICATION
MCR25
Low noise
MF25
4 band colour code
MF40
MF60
EIA-RS-196A
JIS-C-6402
IEC 115-1
DIN 44061 style 0207
MIL-R-10509 style RN55
MIL-R-10509 style RN50
0.25W
0.25W
0.4W
0.6W
± 2%, ± 5%
±1%
±1%
±1%
Resistance Range
1R0 to 10M (E24)
1R0 to 10M (E24)
10R to 1M0 (E24)
1R0 to 10M (E24)*
Working Voltage
250V
250V
200V
250V
Overload Voltage
500V
500V
400V
500V
±100ppm/°C (2%)
±200ppm/°C (5%)
±50ppm/°C
±50ppm/°C
±50ppm/°C
Meets
Power Dissipation at 70°C
Resistance Tolerance
Temperature Coefficient
Operating Temperature Range
-55°C to +155°C
0.01µV/V for values up to 1K0
rising to 0.5µV/V on highest values
Current Noise
Performance
Short term overload
Vibration
Temperature cycling
Soldering heat
Damp heat cycling
Endurance (1000 hours)
Body Colouring
Colour Code
±(0.5% +0.05R)
±(0.5% +0.05R)
±(0.5% +0.05R)
±(0.5% +0.05R)
±(1.5% +0.05R)
±(1% +0.05R)
±(0.25% +0.05R)
±(0.25% +0.05R)
±(0.25% +0.05R)
±(0.25% +0.05R)
±(0.5% +0.05R)
±(0.5% +0.05R)
±(0.5% +0.05R)
±(0.5% +0.05R)
±(1% +0.05R)
±(0.3% +0.05R)
±(1.5% +0.05R)
±(1% +0.05R)
±(0.5% +0.05R)
±(0.5% +0.05R)
±(0.5% +0.05R)
±(0.3% +0.05R)
±(1.5% +0.05R)
±(1% +0.05R)
Blue
Blue
Green
Light Green
4 band : colours to EIA359-A, width & spacing to EIA RS-196A & IEC Pub.62
Resistance to Solvents
Ammo Box Quantity
MIL-R-10509 style RN55
Permanent marking. No physical or electrical damage or deterioration.
5K pcs
1K or 5K pcs
1K or 5K pcs
1K or 5K pcs
* Values outside this range can be
supplied to special factory order.
Reformatted by Anglia 9907
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Metal Film Resistors
type MCR / MF
DERATING CURVE
1
0.10
0.3
0.20
0.30
0.40
0.50
0.60
100
PERCENT RATED LOAD (%)
0
NOISE VOLTAGE (mV/V)
NOISE INDEX (dB)
CURRENT NOISE
0.1
0.03
0.01
0.003
0.001
100
1K
10K
100K
1M
10M
NOMINAL RESISTANCE (Ω)
80
60
40
20
0
0 20 40
70
100 120
155
AMBIENT TEMPERATURE (°C)
DIMENSIONS (in mm)
MCR25/MF25/MF60
52
6.5
0.6
2.3
MF40
52
3.5
0.5
1.7
All resistors are delivered on 52mm tape, with a component spacing of 5mm,
and packed in ammo boxes. See table for quantity.
Reformatted by Anglia 9907
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Fusible, 1/4 Watt
type FR25
A range of fusible resistors of metal film construction.
These resistors are designed to offer protection against overloads.
Features :
Flame retardant coating
5 band colour code
Max. power handling 0.33 W
Standard 1/4 W body size
Safety component for audio & video circuits
Protects power supplies & transistors
SPECIFICATION
FR25
Power Dissipation at 70°C
0.33 W
Resistance Tolerance
± 5%
Resistance Range
1R0 to 1K0 (E24)
Working Voltage
250 V
Overload Voltage
500 V
±100ppm/°C (±200ppm/°C ≤ 15R)
Temperature Coefficient
Operating Temperature Range
-55°C to +155°C
Performance (resistance stability)
Short term overload
Temperature cycling
Soldering heat
Damp heat cycling
Endurance (1000 hours)
±(1% + 0.05R)
±(2% + 0.05R)
±(1% + 0.05R)
±(5% + 0.05R)
±(5% + 0.05R)
Colour Code
5 band : colours to EIA359-A, width
& spacing to EIA RS-196A & IEC Pub.62
Resistance to Solvents
Permanent marking. No physical or electrical
damage or deterioration.
Body Colour
Red - Brown
DERATING CURVE
PERCENT RATED LOAD (%)
D R/R (%)
OVERLOAD CURVE
15
10
5
0
-5
-10
-15
1
10
100
1kΩ
NOMINAL RESISTANCE (Ω)
100
80
60
40
20
0
0 20 40
70
100 120
155
AMBIENT TEMPERATURE (°C)
Dimensions (in mm)
52
6.5
Component
spacing
5
0.6
5 band colour code
on grey body
2.3
Reformatted by Anglia 9907
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Carbon Film Resistors
type CR
A range of industry standard resistors ideally suited for both industrial
and consumer applications.
Features :
Meets MIL-R-11
4 band colour code
SPECIFICATION
Extended power handling on lower ratings
Offers good all round performance at low cost
CR16
CR25
CR50S
CR100
CR200
Power Dissipation at 70°C
0.2W
0.33W
0.66W
1W
2W
Resistance Tolerance
±5%
±5%
±5%
±5%
±5%
Resistance Range
10R to 1M0 (E24)
1R0 to 10M (E24)
1R0 to 10M (E24)
1R0 to 10M (E12)
1R0 to 10M (E12)
Working Voltage
200V
250V
350V
500V
500V
Overload Voltage
400V
500V
700V
1000V
1000V
Temperature Coefficient
0 to -1000ppm/°C
Operating Temperature Range
-55°C to +155°C
<0.5µV/V for values up to 100K
<1.0µV/V on higher values
Current Noise
Performance
Short term overload
±(0.5% +0.05R)
Vibration
±(0.5% +0.05R)
Temperature cycling
±(0.5% +0.05R)
Soldering heat
±(0.5% +0.05R)
Damp heat cycling
±(3% +0.05R)
Endurance (1000 hours)
±(3% +0.05R)
Body Colouring
Light Brown
Colour Code
4 band : colours to EIA359-A, width & spacing to EIA RS-196A & IEC Pub.62
Resistance to Solvents
Ammo Box Quantity
Permanent marking. No physical or electrical damage or deterioration.
5K pcs
1K or 5K pcs
4K pcs
1K pcs
1K pcs
Reformatted by Anglia 9907
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Carbon Film Resistors
type CR
TEMPERATURE COEFFICIENT
CURRENT NOISE
-400
-600
-800
1000
10
100
1K
10K
100K
1M
10
3.2
0
1.0
NOISE VOLTAGE (µV/V)
NOISE INDEX (dB)
-200
-10
-20
-30
-40
.32
.10
.032
.010
.003
100
-50
10M
1K
10K
100K
1M
10M
NOMINAL RESISTANCE (Ω)
NOMINAL RESISTANCE (Ω)
DERATING CURVE
PERCENT RATED LOAD (%)
TEMP. COEFF. (ppm/°C)
0
100
80
60
40
20
0
0 20 40
70
100 120
155
AMBIENT TEMPERATURE (°C)
DIMENSIONS (in mm)
Type
H
ød
L
H
øD
L
øD
H
ød
CR16
3.2±0.2 1.7±0.2
CR25
6.5±0.5 2.3±0.3 28.0±3 0.6±0.05
CR50S
8.5±0.5 2.8±0.5 28.0±3 0.6±0.05
CR100
CR200
11.0±1 4.0±0.5 26.0±3 0.8±0.05
15.0±1 5.0±0.5 24.0±3 0.8±0.05
28.0±3 0.5±0.05
All resistors are supplied on 52mm tape, with a component
spacing of 5mm (2W : 10mm), and packed in ammo
boxes (standard) or on reels.
Reformatted by Anglia 9907
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WIRE WOUND, 2.5Watt
type WR250
A range of axial lead wirewound resistors manufactured to a high level of specification yet
offered at very competitive pricing. Rated 2.5W at 70°C and 3.0W at 40°C.
Features:
2.5W/3.0W rating
Low cost
Rugged construction
4 band colour code
SPECIFICATION
Flame retardant coating
Available loose or taped
WR250
2.5 Watt at 70ºC
3.0 Watt at 40ºC
Power Dissipation
Resistance Tolerance
±5%
Resistance Range
0R1 to 270R (E12)
±300ppm/°C (values ≥ 22R)
±400ppm/°C (values <22R)
Temperature Coefficient
Operating Temperature Range
-40°C to +200°C
Performance (resistance stability)
Short term overload
Vibration
Temperature cycling
Soldering heat
Damp heat cycling
Endurance (1000 hours)
±(2% +0.05R)
±(1% +0.05R)
±(1% +0.05R)
±(1% +0.05R)
±(5% +0.05R)
±(5% +0.05R)
Colour Code
4 band : colours to EIA359-A, width
& spacing to EIA RS-196A & IEC Pub.62
Resistance to Solvents
Permanent marking. No physical or
electrical damage or deterioration.
Body Colour
Grey or Green
SURFACE TEMPERATURE RISE
DERATING CURVE
POWER DISSIPATION (W)
TEMP. RISE (°C)
150
100
50
0
40 70
3.0
200
0
0.5
1.0
1.5
2.0
2.5
3.0
275
2.5
2.0
1.5
1.0
0.5
0
-50
POWER DISSIPATION (W)
0
50 100 150 200 250 300
AMBIENT TEMPERATURE (°C)
DIMENSIONS (in mm)
52
28
12 max
12 max
Component
spacing
5
0.8
0.8
5 max
5 max
Reformatted by Anglia 9905
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Metal Oxide, 3 Watt
type MX 300
A range of high power metal oxide resistors with excellent performance.
Offers high surge and overload capability and temperature stability.
Features:
Meets MIL-R-11
3W power rating
Flame proof coating
Non-inductive design
5 % tolerance, 4 band colour code
Excellent temperature coefficient
High surge and overload capability
Low cost and high safety standard
SPECIFICATION
MX 300
Power Dissipation at 70°C
3W
Resistance Tolerance
± 5%
Resistance Range
1R0 to 1M0 (E12)
Working Voltage
500 V
Overload Voltage
1000 V
Temperature Coefficient
±50ppm/°C typ., ±150ppm/°C max.
Operating Temperature Range
-55°C to + 200°C
0.1 µV/V (values ≤ 1K)
rising to 0.5 µV/V on highest values
Current Noise
Insulation Resistance
10,000 MΩ min.
Performance (resistance stability)
Short term overload
Temperature cycling
Soldering heat
Damp heat cycling
Endurance (1000 hours)
Vibration
±(0.5 % max)
±(1.0 % max)
±(0.5 % max)
±(2.0 % max)
±(3.0 % max)
±(0.2 % max)
Colour Code
4 band : colours to EIA359-A, width
& spacing to EIA RS-196A & IEC Pub.62
Resistance to Solvents
Permanent marking. No physical or electrical
damage or deterioration.
Body Colour
Grey
SURFACE TEMPERATURE RISE
70°C
100
180
80
TEMP. RISE (°C)
PERCENT RATED LOAD (%)
DERATING CURVE
60
40
20
0
0
50
100
150
200
120
60
0
250
1
2
3
APPLIED WATTAGE
AMBIENT TEMPERATURE (°C)
DIMENSIONS (mm)
52
15
0.8
5
Reformatted by Anglia 9907
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Chip Resistor Array
type RCN16
A range of thick film, chip resistor arrays housed in the industry standard 1206 package.
The arrays consist of four isolated resistors and are of a reliable monolithic construction.
Supplied taped and reeled in quantities of 5K pcs.
Features:
Convex or Concave terminals
Topside marking for easy identification
Suitable for both Re-flow and Wave soldering
SPECIFICATION
Low noise
Small size and light weight
High reliability and stability
RCN16
Power Dissipation at 70°C
0.063W (per resistor)
0.25W (per package)
Resistance Tolerance
±5% (J)
Resistance Range
10R to 1M0 (E12)
Temperature Coefficient
±250ppm/°C
Operating Temperature Range
-55°C to +125°C
Maximum Working Voltage
50V
Maximum Overload Voltage
100V
Performance (resistance stability)
Short term overload
Vibration
Temperature cycling
Soldering heat
Damp heat cycling
Endurance (1000 hours)
Resistance to Solvents
±(3% +0.1R)
±(1% +0.1R)
±(2% +0.1R)
±(1% +0.1R)
±(3% +0.1R)
±(3% +0.1R)
Permanent marking. No physical or
DERATING CURVE
-55
CIRCUIT
70
125
RATED POWER (%)
100
80
60
40
20
0
-60
-40
-20
0
20
40
60
80
100 120 140
R1
R2
R3
R4
AMBIENT TEMPERATURE (°C)
Reformatted by Anglia 9910
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Chip Resistor Array
type RCN16
DIMENSIONS (mm)
CONVEX (suffix 4)
CONCAVE (suffix 04)
L
L
C
C
W
W
C
C
H
L
3.2 ± 0.1
W
1.6 ± 0.1
H
B
P
H
0.5 ± 0.1
B
P
P
0.8 ± 0.05
B
0.65 ± 0.1
L
W
3.2 ± 0.2 1.6 ± 0.15
C
0.25 ± 0.1
H
0.6 ± 0.1
P
0.8 ± 0.15
B
0.5 ± 0.1
C
0.40 ± 0.2
CONSTRUCTION
CONVEX
CONCAVE
Thick Film Resistive Element
Protective Coating
Thick Film Resistive Element
Protective Coating
Termination
Termination
High Purity Alumina Substrate
High Purity Alumina Substrate
3
4
1.
2.
3.
4.
2
1
PACKAGING
TAPE (Paper)
MARKING
REELS (Plastic)
103
1.5
10
Ø1.5
4.0
2.0
High Purity Alumina Substrate
Thick Film Resistive Element
Protective Coating
Termination
4.0
1.75
Ø60
3.5 8.0
5.0
3.6
1.1
2.0
Ø
13
Ø178
Each resistor is marked with a three digit code to
designate the nominal resistance value.
The first and second digits are significant, and the
third denotes the number of zeros.
e.g 103 denotes 10KΩ
Reformatted by Anglia 9910