FHR24-8065 Datasheet, PDF (2/5 Pages) Riedon Powertron – FHR 2/4-8065 80110 80216 80320 80370 Precision Power Shunt Resistors

FHR 2/4-8065 80110 80216 80320 80370
Precision Power Shunt Resistors
4000
2000
0
-2000
-4000
-6000
-8000
-40
-20
120
100
80
60
40
20
0
25
SPECIFICATIONS (continued)
Temperature Coefficient
250
table A
+15ppm/K
200
150
-15ppm/K
100
Limit 2 (3σ)
Nominal ∆R/R
50
Limit 1 (3σ)
0
20
40
60
80
Temperature (°C)
0.5%
0.2%
0.1%
100
120
140
02
5 10 20 50 100 200
Resistance Value (mOhm)
Derating
Power Rating Notes -
The FHR 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
Where:
50
75
85 100 115 130
Temperature of the backplate (°C)
Dimensions
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 )
Dimension
B
C
D
E
F
G
mm
80.00
60.00
Ø4.75
15.00
67.00
2.00
tol.
(±mm)
0.3
0.3
0.2
0.2
0.3
0.1
inches
3.15
2.36
Ø0.19
0.59
2.64
0.08
tol.
(±inches)
0.012
0.012
0.008
0.008
0.012
0.004
Dimension
A
L1
L2
8065
mm
65.00
6.00
59.00
80110
mm
110.00
6.00
104.00
80216
mm
216.00
6.00
108.00
80320
mm
320.00
6.00
108.50
80370
mm
370.00
6.00
125.50
tol. 8065 80110
(±mm) inches inches
0.3 2.56 4.33
0.3 0.24 0.24
0.3 2.32 4.09
80216
inches
8.50
0.24
4.25
80320
inches
12.60
0.24
4.27
80370
inches
14.57
0.24
4.94
tol.
(±inches)
0.012
0.012
0.012
L3
210.00 211.50 244.50 0.3
8.27
8.33
9.63
0.012
L4
314.00 364.00 0.3
12.36 14.33
0.012
Riedon Inc.
300 Cypress Avenue
Alhambra CA 91801
[phone]
[phone]
www.riedon.com
Page 23
rev. 03/2006A