SHR 4-2321
FEATURES
•
•
•
•
•
•
Resistances from 0.005Ohm to 20Ohms
Power Rating to 40Watt
Resistance Tolerances to ±0.1%
TCR to ±2ppm/K
Very Low Inductance
Load Stability to 0.1%
TABLE 1—SPECIFICATIONS
TYPE
Resistance Range
Power Rating
Tolerances
from 0R005
from 0R01
Thermal Resistance
Stability (2000h)
Temperature Coefficient
Standard (N)
Option (M)
Option (L) upon request for selected values
Voltage Proof
Maximum Current
Thermal EMF
Operating Temperature Range
Resistor Material
Substrate
Housing
Connector Material
Terminals
Max. Torque
Free air 70°C
With heatsink
3W
40W
0.5% / 1% / 2% / 5%
0.1% / 0.25% / 0.5% / 1% / 2% / 5%
2.0 K/W
0.1% / 0.2% / 0.5%
(depends on stress)
±10ppm/K (20 to 60°C)
±5ppm/K (20 to 60°C)
±2ppm/K (20 to 60°C)
other specifications upon request
300 VDC
150 A
< 1µV/K
-40 to 130 °C
CuMnSn-Foil
Anodized aluminium
Epoxy or PPS
Cu / tinned
4 (standard contact S)
0.8 Nm
SHR 4-2321
0.005 to 20 Ohms
ORDERING INFORMATION
Part Number - Resistance - Contact - Tolerance - TCR
SHR 4-2321 0R050 S 1% M
Document No.: 64249
Revision: 04-10-2018
For technical questions,
contact
powertron@vpgsensors.com
www.powertron.de
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SHR 4-2321
FIGURE 1—TEMPERATURE COEFFICIENT
2000
+10 ppm/K
1000
+5 ppm/K
∆R/R
(ppm)
0
Nominal
∆R/R
-5 ppm/K
-1000
-10 ppm/K
-2000
-40
-20
0
20
40
60
80
100
120
140
Temperature (°C)
FIGURE 2—DERATING
Power Rating Notes -
120
Power ( % from
nominal power)
100
80
60
40
20
0
25
0.5%
0.2%
0.1%
The SHR Series Resistors must be attached to a suitable heat-
sink. The maximum internal resistor temperature is 130°C.
To specify an appropriate heatsink use the following formula :
R
qH
= T
MAX
- ( P x R
qR
) - T
A
P
50
85
100
115
130
Where:
Temperature of the backplate (°C)
R
qH
= Thermal Resistance of Heatsink ( K/W )
R
qR
= Thermal Resistance of Resistor ( K/W )
T
MAX
= Maximum Temperature of Resistor
T
A
= Ambient Temperature of Heatsink ( °C )
P = Power Through Resistor ( W )
FIGURE 3—DIMENSIONS
in mm (inches)
Dimension
A
±0.2 (±0.008)
B
±0.2 (±0.008)
C
±0.1 (±0.004)
D
±0.1 (±0.004)
E
±0.2 (±0.008)
F
±0.2 (±0.008)
G
±0.2 (±0.008)
H
±0.2 (±0.008)
I
±0.2 (±0.008)
J
±0.1 (±0.004)
K
±0.1 (±0.004)
L
±0.2 (±0.008)
M
±0.2 (±0.008)
N
±0.1 (±0.004)
O
±0.1 (±0.004)
P
±0.2 (±0.008)
Q
±0.1 (±0.004)
R
±0.2 (±0.008)
17.25 (0.68)
22.30 (0.88)
3.20 (0.13)
Ø
3.20 (
Ø
0.13)
16.75 (0.66)
7.62 (0.30)
17.78 (0.70)
1.50 (0.06)
1.10 (0.04)
2.00 (0.08)
3.00 (0.12)
8.00 (0.31)
3.00 (0.12)
1.50 (0.06)
4.50 (0.18)
3.75 (0.15)
0.80 (0.03)
2.10 (0.08)
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For technical questions,
contact
powertron@vpgsensors.com
Document No.: 64249
Revision: 04-10-2018
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Document No.: 63999
Revision: 15-Jul-2014
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