PCS
Low TCR Current Sense Resistor
•
•
•
•
•
•
•
•
TCR to ±2ppm/°C
0.001 to 20 Ohm
Power Rating to 40Watt
Resistance Tolerances to ±0.1%
Very Low Inductive
Excellent Long Term Stability
Package Style 2321 4 Terminal
Foil Techology
Applications:
Power Modules, Current Monitoring,
Frequency Converters, Switch Mode Power Supplies
SPECIFICATIONS
Type
Resistance Range
Power rating (70°C)
Power Rating with Heat Sink
Tolerances: from 0.001 Ohm
from 0.01 Ohm
Thermal Resistance
Stability (2000h)
Temperature Coefficient
Standard (N)
Option 1 (M)
Option 2 (L) upon request for selected values
PCS
0.001 to 20 Ohm
3W
40W
.5% / 1% / 2% / 5%
0.1% / 0.25% / 0.5% / 1% / 2% / 5%
2.0 C/W
0.1% / 0.2% / 0.5%
(depends on stress)
±10ppm/C (20 to 60°C)
±5ppm/C (20 to 60°C)
±2ppm/C (20 to 60°C)
other specifications upon request
300 VDC
150 A
< 1µV/K
-40 to 130°C
CuMnSn-Foil
Anodized aluminium
Cu / tinned
Epoxy
4
0.8 Nm
Isolation Voltage
Max. Current
Thermal EMF
Operating Temperature Range
Resistor Material
Substrate
Connector Material
Housing
Terminals
Max Torque
Ordering Information
Part Description: Part Type - Resistance - Tolerance - TCR
PCS
10 Ohms
1%
10PPM
Riedon Inc.
11/17
300 Cypress Avenue
Alhambra CA 91801
www.riedon.com
(626) 284-9901
(626) 284-1704
Page 27
PCS
Low TCR Current Sense Resistors
Temperature Coe cient
2000
+10 ppm/K
1000
R/R (ppm)
+5 ppm/K
0
Nominal R/R
-
5
ppm/K
-1000
-
10
ppm/K
-2000
-40
-20
0
20
40
60
80
100
120
140
Temperature (°C)
Derating
Power Rating Notes -
120
100
80
60
40
20
0
25
50
85
100
115
130
Temperature of the backplate (°C)
0.1%
0.5%
0.2%
Power ( % from
nominal power)
The PCS 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
H
H
=
Where:
T
MAX
- (
P
*
R
H
R
) -
T
A
P
R
θH
= Thermal Resistance of Heatsink ( K/W )
R
θR
= Thermal Resistance of Resistor ( K/W )
T
MAX
= Maximum Temperature of Resistor
T
A
= Ambient Temperature of Heatsink ( °C )
P = Power Through Resistor ( W )
Dimensions
Dimension
A
B
C
D
E
F
G
H
mm
17.25
22.30
3.20
Ø3.20
16.75
7.62
17.78
1.50
1.10
2.00
3.00
8.00
3.00
1.50
4.50
3.75
0.80
2.10
tol.
(±mm)
±0.2
±0.2
±0.1
±0.1
±0.008
±0.008
±0.008
±0.2
±0.008
±0.004
±0.004
±0.008
±0.008
±0.004
±0.004
±0.008
±0.1
±0.008
inches
0.68
0.88
0.13
Ø0.13
0.66
0.30
0.70
0.06
0.04
0.08
0.12
0.31
0.12
0.06
0.18
0.15
0.03
0.08
tol.
(±inches)
±0.008
±0.008
±0.004
±0.004
±0.2
±0.2
±0.2
±0.008
±0.2
±0.1
±0.1
±0.2
±0.2
±0.1
±0.1
±0.2
±0.004
±0.2
I
U
U
I
I
J
K
L
M
N
O
P
I
= Current
U = Voltage
Q
R
Riedon Inc.
11/17
300 Cypress Avenue
Alhambra CA 91801
www.riedon.com
(626) 284-9901
(626) 284-1704
Page 28
PCB Design
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