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20

PSB Series

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Document No.: 67010

Revision: 25-Apr-2016

Ultra Precision Shunt Resistor (40 Watts)

COMPOSITION OF TYPE NUMBER

PSB X R0100 B

Resistance value in ohm is expressed by a series of four

significant digits and an R designating the decimal point.

CONFIGURATION (DIMENSIONS IN mm)

100

88

66

Schematic of PSB Type

VV

4-Terminal Connection

16

8

2

2-M3

60

20

II

2-M6

Weight =170g

FEATURES

• Excellent temperature characteristics created by Bulk Metal®

foil technology

• Accurate value on four-terminal wiring, even in low extremity of resistance

• High heat dissipation due to aluminum-clad construction with fins

• Readiness to mount to heat sink or water-cooled radiator

• Availability of threaded holes to fix cables with screw

APPLICATIONS

• Current-sensing in precise power supply, motor driver, etc.

TCR, RESISTANCE RANGE, TOLERANCE,

RATED POWER

TCR (ppm/°C)

0°C to +60°C

Resistance

Range

(Ω)

Resistance

Tolerance

(%)

Rated Power

(W)

at 25°C

0±15 (W)

0.001 to 0.005

±0.1 (B)

±0.5 (D)

±1 (F)

12

in free air

and

40

On heat sink*

0±5 (X)

0±15 (W)

0.005 to 1

*Thermal resistance of the heat sink 1°C/W.

Available to use higher rated power with elevation of cooling effect.

Please keep temperature of element surface less than 60°C.

POWER DERATING CURVE

EXAMPLE OF APPLICATIONS

Motor Control Circuit Using Shunt Resistor

I=

VIN

R

Shunt Resistor

Current Buffer

VIN

1Vdd

2Vee

M

R

C.B.

i

2

1

PSB

Ultra Precision Shunt Resistor (40 Watts)

PSB

Caution

Please screw current terminals

>5N

⋅ m, voltage terminal >1N ⋅ m