PBV, PBH, PSB
Precision Current Sensing Resistors
PBV
22.5
ISOTEK
C O R P O R AT I O N
11.25
3.75
17.5
I
3.0
5.0
V
V
I
13.75
4.45
3.2
The PBV, PBH and PSB resistors are designed for mounting to a
heat sink.
The PSB utilizes a spring clip. Both the PBV and PBH have one
screw mounting capability. Etched Manganin foil and copper
terminals provide for low temperature coefficient of resistance, long
term stability and low inductance. The internal thermal resistance,
<4K/W, assures low self-heating at the 10W rating.
The PBV is a four terminal (Kelvin) version which provides a lower
resistance range (0.0005
Ω
to 1
Ω
) where precision measurement of
current is necessary. All are ideal for power electronics and control
applications.
22.5
3.0
2.36
5.08
7.62
5.08
2.55
PBH
15.5
7.75
6.5
3.2
4.45
19.0
Percent of Rated Power
100
75
50
25
PBH, PSB
5.0
1.5
PBV
0.8
2.55
10.16
0
20
40
60
o
80
100
120
140
PSB
4.7
11.0
2.0
2.0
Case Temperature ( C)
PBV-R005-1.0
Tolerance
Resistance value
Model
20.0
2.0
3.0
5.08
Dimensions in millimeters
Technical Data
Parameters
Resistance Values
Tolerance
Temperature Coefficient of Resistance
(20°C to 60°C)
Power Rating (Watts)
Dielectric Withstanding Voltage
Inductance
Thermal Resistance to Base Plate
Thermal Resistance to Ambient
Operating Temperature Range
Stability (Nominal Load at 70°C)
PBH
2 m
Ω
to 100
Ω
1.0%, 5.0%
< 50 ppm/°C
3/10 on heatsink
500 VAC
< 20 nH
Rth < 4°C/W
Rth < 20°C/W
-55°C to +125°C
< 0.5% after 2000 hours
PBV
0.5 m
Ω
to 1
Ω
0.5%, 1.0%, 5.0%
< 30 ppm/°C
3/10 on heatsink
500 VAC
< 5 nH
Rth < 3°C/W
Rth < 15°C/W
-55°C to +125°C
< 0.5% after 2000 hours
PSB
5 m
Ω
to 1
Ω
1.0%, 5.0%
< 50 ppm/°C
3/10 on heatsink
100 VAC
<10 nH
Rth < 4°C/W
Rth < 20°C/W
-55°C to +125°C
< 0.5% after 2000 hours
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tekinfo@isotekcorp.com
phone
508-673-2900
fax
508-676-0885
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