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Professional Grade Heat Sink Power Resistors Type = YAH = Aluminium Housed |
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Special Features:
- Completely Welded Construction
- Screw Mounts on Chasis to Utilize Heat Sink Effect
- High Stability at Conventional Power Ratings
- Complete Environmental Protection
- Low Surface Temperature
- Low Temperature Co-Efficient
- Flat Marking Surface for Easy Identification
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| Physical Dimension in M.M. |
Type |
Power Rating at 250C Mounted |
A
+- 0.3 |
B
+- 0.3 |
C
+- 0.3 |
D
+- 0.3 |
E
+- 0.3 |
F
+- 0.3 |
G
+- 0.3 |
H
+- 0.3 |
|---|
YAH |
25W |
27 |
18.3 |
21.4 |
3.18 |
30 |
15.8 |
15.8 |
2.18 |
YAH |
50W |
50 |
39.8 |
21.4 |
3.18 |
30 |
15.8 |
15.8 |
2.18 |
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Electrical Specifications:
- Tolerance= +-1% +-2% +-5% (STD)
- Wattage Range 25W and 50W
- Temperature Co-Efficient=0.1Ω to 10Ω +- 100PPM Above 10Ω +- 50ΩPPM
- Dielectric Voltage=2000 VAC for 25W and 50W Unit
- Derating=Power to Zero at 2750c
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Ambient derating is required for reduced chasis mounting area and for high ambient
Temperatures the following curves apply to operation of unmounted resistors. |
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Proper Aluminium Heat Sinks Dimension in M.M. |
Watt Units | Length | Width | Thickness |
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25W | 150 | 150 | 1.5 |
50W | 150 | 150 | 3 |
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