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2023 ROHM Co., Ltd. All rights reserved.
2
023.2 - Rev.012
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High power metal plate shunt
resistors
<Ultra
low ohmic>
PSR series
●Feature
1) High power max 15W
2) Ultra low resistance range (0.1mΩ or more).
3) Excellent TCR characteristic
4) Convex structure
5) ROHM resistors have obtained ISO9001 / IATF16949 certification.
6) Corresponds to AEC-Q200.
●Products list
☆ : Under development
Design and specifications are subject to change without notice.
Carefully check the specification sheet supplied with the product before using or ordering it.
●Part number description
Datasheet
PSR F
Part No.
Resistance
tolerance
PSR
100 6432 [2512]
F (±1%) B 0.1mΩ
330 6464 [2525] C0.2mΩ Resistance 4 digits
350 7.9×5.6 [3222] Embossed tape
CW
*
0.27mΩ
0.1mΩ 0L10
400 10×5.2 [3921] (8mm pitch) D 0.3mΩ
0.2mΩ 0L20
500 15×7.75 [5931] Embossed tape E 0.4mΩ
0.27mΩ 0L27
(8mm pitch) F 0.5mΩ
0.3mΩ 0L30
Embossed tape H 1.0mΩ
0.4mΩ 0L40
(8mm pitch) J 2.0mΩ
0.5mΩ 0L50
Embossed tape L 3.0mΩ
1.0mΩ 1L00
(8mm pitch)
* : Only PSR350
2.0mΩ 2L00
Embossed tape
3.0mΩ 3L00
(12mm pitch)
PSR500 HTQ 2,000
High power metal
plate shunt resistors
<Ultra low ohmic>
PSR350 KTQ 5,000
PSR400 ITQ 3,000
KTQ 5,000
ITQ 3, 000
PSR100
PSR330
Size (mm)[inch]
Packaging
specifications code
Code
Packaging
specification
Quantity
pcs/Reel
100 KTQ
Nominal resistance
Part No.
Resistance code, 4 digits
H1L00
Special
part code
Resistance Tolerance Temperature
coefficient
(mm) [inch] (mΩ
)
(ppm/°C) (°C)
0.2 C 150±50
0.3 D 8W(75°C) 4W(140°C) 0
〜
+150
0.5 F 8W(75°C) 4W(140°C)
1.0 H 8W(75°C) 4W(140°C)
2.0 J 6W(75°C) 4W(140°C)
3.0 L 4W(75°C) 3W(140°C)
0.1 B 100±50
0.5 F 0
〜
+100
1.0 H 0
〜
+50
PSR350
7.9×5.6 3222 0.27 F(±1%) CW 0
〜
+150 -65
〜
+175 Yes
0.2 C 12W(75°C) 5W(130°C) 125±50
0.3 D 10W(75°C) 5W(130°C)
0.5 F 10W(75°C) 5W(130
℃
)
1.0 H 8W(75°C) 5W(130°C)
2.0 J 6W(75°C) 4W(115°C)
3.0 L 5W(70°C) 3W(115°C)
0.1 B 15W(75°C) 10W(120°C) 200 ±50
0.2 C 15W(75°C) 10W(120°C) 0
〜
+150
0.3 D 10W(75°C) 7W(120°C)
0.4 E 10W(75°C) 7W(120°C)
0.5 F 10W(75°C) 7W(120°C)
1.0 H 10W(75°C) 6W(120°C)
2.0 J 7W(70°C) 4W(115°C)
PSR500
15×7.75 5931 F(±1%) -65
〜
+175
-65
〜
+175 Yes
0
〜
+100
0
〜
+75
Yes0
〜
+150
0
〜
+75
12W(120°C)
-65
〜
+175 Yes0
〜
+100
0
〜
+50
Size Special
code
Automotive
grade
available
Operating
temperature
range
-65
〜
+175 Yes
Rated power P
(Rated terminal temperature T
k
)
Part No.
PSR100
PSR330
6464 2525 F(±1%)
6432 2512 F(±1%)
15W(120°C)
8W(100°C)
6W(100°C)
12W(120°C)
PSR400
10×5.2 3921 F(±1%)
☆
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2023 ROHM Co., Ltd. All rights reserved.
2
023. 2 - Rev.012
PSR series
Datasheet
● Chip resistor dimensions and materials
①
②
②
①
(Cross section)
(Back side)
① : Resistive metal element
② : Terminal (Cu)
②
(Unit : mm)
(Surface)
Part No. Resistance L W t H b
Res is tiv e
metal
element
0.2mΩ 1.80±0.15
0.3mΩ 1.45±0.15
0.5mΩ 1.15±0.15
1.0mΩ 0.75±0.15
2.0mΩ 1.00±0.15
3.0mΩ 0.75±0.15
0.1mΩ 1.81±0.15 Cu-Mn-Sn
0.5mΩ 0.75±0.15 Cu-Mn
1.0mΩ 1.00±0.15 Ni-Cr
PSR350
0.27mΩ 7.9±0.1 5.6±0.3 0.85±0.15 0.35±0.15 2.1±0.2 Cu-Mn-Sn
0.2mΩ 1.90±0.15 Cu-Mn-Sn
0.3mΩ 1.85±0.15
0.5mΩ 1.30±0.15
1.0mΩ 0.90±0.15
2.0mΩ 1.10±0.15
3.0mΩ 0.90±0.15
0.1mΩ 1.96±0.15 4.6±0.6 Cu-Mn-Sn
0.2mΩ 1.85±0.15
0.3mΩ 1.40±0.15
0.4mΩ 1.15±0.15
0.5mΩ 1.05±0.15
1.0mΩ 1.35±0.15
2.0mΩ 0.90±0.15
Ni- Cr
2.0±0.6
PSR400
10.0±0.3 5.2±0.3 0.5±0.15
Cu- Mn
6.35±0.15 3.05±0.25 0.35±0.15 1.12±0.3
Cu-Mn- Sn
Cu- Mn
Ni- Cr
PSR100
PSR500
15.0±0.3 7.75±0.3 0.5±0.15
4.0±0.6
Cu- Mn
Ni- Cr
PSR330
6.35±0.15 6.35±0.15 0.35±0.15 1.12±0.3