Ultra low ohmic Metal plate / High power type
Shunt Resistors
PSR Series
Features
1) High power class up to 4 to 5W.
2) The lineup of ultra-low resistance value : correspondence from 0.2m
3) Excellent temperature coefficiency.
4) Ideal for current detection under high current circuit.
Data Sheet
Products List
Size
Part No.
(mm)
(inch)
Rated power
Tolerance
(70°C)
J (
±
5%)
G (
±
2%)
F (
±
1%)
Resistance
range
(mΩ)
0.3,0.5
1.0,2.0,3.0
0.2
PSR500
15×7.75
5931
5W
J (
±
5%)
G (
±
2%)
F (
±
1%)
0.3,0.4,0.5
1.0,2.0
Temperature
∗
coefficient
(ppm /
°C)
Operating
Temperature
Range
(°C)
±
175
±
75
±
225
±
150
±
75
−
55 to
+
170
PSR400
10×5.2
3921
4W
∗(+
20°C to
+
125°C)
Chip Resistor Dimensions and Materials
(Unit : mm)
(Top)
L
Part No.
(mm)
(inch)
L
W
H
b
Resistance
t
Material
0.3
W
1.85±0.15
1.30±0.15 Cu / Mn
0.90±0.15
1.15±0.15
Ni / Cr
0.90±0.15
1.85±0.15
1.40±0.15
Cu / Mn
1.15±0.15
1.05±0.15
1.35±0.15
Ni / Cr
0.90±0.15
0.5
PSR400
10×5.2
t
H
3921
10±0.3
5.2±0.3
0.5±0.1
2.0±0.6
1.0
2.0
3.0
0.2
0.3
0.4
(Bottom)
b
PSR500
15×7.75
5931
15±0.3
7.75±0.3
0.5±0.1
4.0±0.6
0.5
1.0
2.0
Derating Curve
When the ambient temperature exceeds 70°C, power dissipation must be adjusted according to the derating curves below.
100
80
60
40
20
0
RATED POWER (%)
−55
0
70
100
AMBIENT TEMPERATURE (°C)
170
Design and specifications are subject to change without notice.
Carefully check the specification sheet supplied with the product before using or ordering it.
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PSR Series
Characteristics
Test Items
Guaranteed Value
Resistor Type
Test Conditions
Measuring method : 2probe per terminal
F :
±1%
G :
±2%
J :
±5%
Probes
Variation of resistance
with temperature
Data Sheet
Resistance
See P1
Measurement :
+20/+125
Overload
±0.5%
Rated power×5,5s
Solderability
A new uniform coating of minimum of 95%
of the surface being immersed an no
soldering da a
±1.0%
No remarkable abnormality on the appearance.
Rosin- Ethanol solution(25% weight)
Soldering condition : 245±5°C
Duration of immersion : 2.0±0.5s.
Soldering condition : 260±5°C
Duration of immersion : 10±1s
Resistance to
soldering heat
Rapid change of
temperature
±1.0%
Test temp. :
−55°C
to
+155°C
5cycle
Damp heat, steady state
±0.5%
40°C, 93%RH (Relative Humidity)
Test time : 1,000h to 1,048h
Endurance at 70°C
±1.0%
70°C Rated power
1.5h : ON
−
0.5h : OFF
Test time : 1,000h to 1,048h
Endurance at 170°C
±1.0%
70°C
Test time : 1,000h to 1,048h
Component Solvent
Resistance
Bend strength of
the end face plating
±0.5%
23±5°C
Solvent : 2−propanol
−
Without open
Compliance Standard(s) : IEC60115−8
JISC 5201−1
Solder Conditions
300
260°C±5°C
max. 10s
Soldering temperature(°C)
250
200
150
100
50
0
0
1
2
(min)
3
4
150∼180°C
max. 120s
220°C over
max. 60s
Recommended solder profile
Reflow
260
220
150 to 180
Temperature(°C)
Peak
Time(s)
60s
120s
10s Max.
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PSR Series
<
Reference data>
Characteristics
Type
Resistance Value
(mΩ)
0.3
0.5
PSR400
1
2
3
0.2
0.3
PSR500
0.4
0.5
1
2
Thermal resistivity of
product (ºC /W)
4.5
8
15
16
24
3
4.5
7
8
8
16
2μV/ºC Max.
< 3nH
Thermal EMF
(μV/ºC)
Inductance
(nH)
Data Sheet
Variation of resistance with temperature
(Reference temperature is 20ºC)
Cu/Mn
2.00
Resistance change rate (%)
( R/R)
Ni/Cr
2.00
Resistance change rate (%)
( R/R)
1.50
1.00
0.50
0.00
-0.50
-1.00
-1.50
-2.00
-60
-40
-20
0
20
40
60
80
100
120
140
Temperature(°C)
1.50
1.00
0.50
0.00
-0.50
-1.00
-1.50
-2.00
-60
-40
-20
0
20
40
60
80
100
120
140
Temperature(°C)
Endurance
(170ºC with no load)
2.00
Resistance change rate (%)
( R/R)
1.50
1.00
0.50
0.00
-0.50
-1.00
-1.50
-2.00
0
500
1000
Time / h
1500
2000
Ni/Cr
Cu/Mn
Surface Temp Rise
(Ta=25ºC)
PSR400
120
110
100
90
80
70
60
50
40
30
20
10
0
0
1
2
3
Wattage(W)
4
5
Surface temperature rise (˚C)
PSR500
120
110
100
90
80
70
60
50
40
30
20
10
0
0
1
2
3
Wattage(W)
4
5
Surface temperature rise (˚C)
3mΩ
2mΩ
1mΩ
0.3mΩ
2mΩ
1mΩ
0.5mΩ
0.2mΩ
6
6
Measurement condition of this data was taken out from board created under our regulation.
Product with highest temperature was selected for the measurement.
Please contact us about test board and test conditions.
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2014.03 - Rev.A
PSR Series
Land Pattern
B
Data Sheet
A
D
Land
C
Type
PSR500
A
B
16.00
C
8.75
6.20
D
5.20
2.70
5.60
PSR400
11.00
∗This
land pattern is only for standard pattern.
This does not gurantee the characteristics of the parts
Sensing Line
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2014.03 - Rev.A
PSR Series
Part Number Description
Data Sheet
P S R 4 0 0
Part No.
Size
(mm [inch])
400 (1.0×5.2
[3921])
500 (15×7.75
[5931])
I T Q J
Tolerance
F
G
J
Special part code
C
D
E
F
H
J
L
Nominal Resistance
Resistance code, 3 or 4 digits.
Resistance
tolerance
code
F,G
J
:
:
4 digits
3 digits
PSR
(Ultra low ohmic metal plate
/ High power type shunt
Resistors)
1%
2%
5%
0.2mΩ
0.3mΩ
0.4mΩ
0.5mΩ
1.0mΩ
2.0mΩ
3.0mΩ
Packaging Specifications code
Part No.
Code
Packaging
Basic ordering
specifications
unit (pcs)
Embossed tape
(8mm Pitch)
Embossed tape
(12mm Pitch)
Resistance
0.2
0.3
0.4
0.5
1.0
2.0
3.0
Tolerance
J
0L2
0L3
0L4
0L5
1L0
2L0
3L0
F,G
0L20
0L30
0L40
0L50
1L00
2L00
3L00
PSR400
PSR500
ITQ
HTQ
3,000
2,000
Tape Dimensions
Embossed Tape
(Unit : mm)
P
0
P
2
φD
0
E
F
W
B
0
Part No.
PSR400
PSR500
Part No.
W
16.0±0.2
24.0±0.2
D
0
F
7.5±0.1
11.5.±0.1
P
0
4.0±0.1
4.0±0.1
E
1.75±0.1
1.75±0.1
P
1
8.0±0.1
12.0±0.1
A
0
5.7±0.2
8.3±0.2
P
2
2.0±0.1
2.0±0.1
B
0
10.5±0.2
15.6±0.2
K
2.3±0.1
2.3±0.1
A
0
P
1
K
PSR400
PSR500
φ1.5
φ1.5
+0.1
0
+0.1
0
Reel Dimensions
A
B
D
C
label
ACCORDING TO EIAJ ET-7200A
(Unit : mm)
Part No.
PSR400
A
φ330±2.00
B
φ100±1.00
C
φ17.4±1.0
D
φ13.00±0.20
PSR500
φ25.4±1.0
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