22
Ultra-Precision Shunt Resistor
(40 Watts)
Composition of Type Number
PSB X R0100 B
Tolerance
TCR
Resistance Value
Type
Example:
Configuration
100
88
66
66 48
60
4 -
␾
4
.5
6
410
2
0
Schematic
of
PSB
Type
VV
4-
Terminal
Connection
16
16
8
2
2
-
M3
60
2
0
5
II
2
-
M
6
Dimensions in mm
Weight =
1
7
0
g
¥
¥
Features
TCR (ppm/°C)
0°C to +60°C Resistance
Range (⍀)Resistance
Tolerance (%) Rated Power (W)
at 25°C
0±15 (W)
0±5 (X)
0±15 (W)
0.001 to 0.005
0.005 to 1
±0.1 (B)
±0.5 (D)
±1 (F)
12
40
On heat sink*
*Thermal resistance of the heat sink 1°C/W.
Available to use higher rated power with elevation of cooking effect.
Please keep temperature of surface less than 60°C.
TCR, Resistance Range, Tolerance, Rated Power
100
80
60
40
20
(%)
20 40 60 80 100
8525
Ambient Temperature
(¡C)
Rated Power Percentage
Power Derating Curve
Motor Control Circuit Using Shunt Resistor
I= VIN
R
Shunt Resistor
Current Buffer
VIN
⫹Vdd
⫺Vee M
R
C.B.
i
⫺
⫹
Example of Applications
Resistance value in ohm is expressed by a series of four significant digits and
an R designating the decimal point.
Applications
PSB
• Excellent temperature characteristics created by 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
• Current-sensing in precise power supply, motor driver, etc
23
Performance
Parameters Test Condition
±0.1%
±0.05%
±0.05%
±0.05%
over 10,000M⍀
±0.1%
±0.1%
±0.2%
±0.2%
ALPHA Specifications
±0.05%
±0.05%
±0.01%
over 10,000M⍀
±0.5%
±0.5%
±0.01%
±0.01%
±0.05%
ALPHA Typical Test Data
25°C
-55°C to +85°C
100 A
0.3°C/W
Maximum Rated Operating Temperature
Working Temperature Range
Maximum Working Current
Power Conditioning
Low Temperature Storage and Operation
Dielectric Withstanding Voltage
Insulation Resistance
Low Temperature Operation
Overload
Shock
High Frequency Shock
Life
High Temperature Exposure
Storage Life
Internal Thermal Resistance
Thermal Electromotive Force
Moisture Resistance
25°C, Rated Power, 96 hrs.
-55°C, No Load, 24 hrs.
Atmospheric: AC 750V, 1 min.
DC 500V, 2 min.
-55°C, Rated Power
Rated Power x 2.5, 5 sec.
+65°C to -10°C, 90% RH to 98% RH, Rated Voltage, 10 cycles (240 hrs.)
30G, 11ms., Half-Sine Wave, X, Y, Z, 10 shocks each
10Hz to 50Hz to 10Hz, 1 min. X, Y, Z, 2.0 hrs. each
25°C, Rated Power, 1.5 hrs. – ON, 0.5 hrs. – OFF, 2,000 hrs.
85°C, No Load, 2,000 hrs.
15°C to 35°C, 15% RH to 75% RH, No Load, 10,000 hrs.
Between resistive element and base plate
±0.1% ±0.5%
1␮V/°C
±0.05% ±0.01%
±0.1% ±0.05%
Frequency Characteristics
(kHz)
3
2
1
0
-1
-2
-3
1001010.1
Frequency
10m
⍀
100m
⍀
1
⍀
(%)
R(AC)/R(DC)
A (4.7¡C/W)
B (4.4¡C/W) A (1.5¡C/W)
B: Bottom of ResistorA: ElementÕs Surface
Screwed Down
Aluminum Heat Sink
100mm (L) x 60mm x (W) x 60mm (H)
B (1.2¡C/W)
In Free Air
On Heat Sink
(Rth 1¡C/W)
70
60
50
40
30
20
10
30 30 40252015105
Applied Power
(W)
⌬
T
(¡C)
T
emperature Rise
Temperature of Resistor Surface