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Datasheet File OCR Text:

Aluminum Cased Power Resistors
GR Series (GR )
FEATURESFEATURES
gHigh power rating, small size and ultra precision. gStandard winding & non-inductive winding or high resistance value types. gHigh stability, strong construction and anti-surge to 20Kv. CHARACTERISTICS ITEM SPEC.
-55+150 1.5% 1.5% 0.5% 0.5% >1,000M
REMARKS
Stocks Temperature Range Load life under high temperature Load life under high humidity www..com Short time overload Heat Resistance Insulation resistance
Resistance Tolerance: 5%2%1%0.5% Rated voltage at Room temp.for 1,000 hours 1,000 400C,95% RH for 1,000 hours 400C,95% RH 1,000 6.25 times the rated power for 5 seconds 6.25 5 275 2 hours 275 2 500 volt Insulation test
SURFACE TEMPERATURE RAISE VS.LOADED POWER
GR-series Surface Temperature rise
10W 400 350 25W 50W 100W
T p ratu em e re
300 250 200 150 100 50 0
1
2
100% Loading power
RATING,DIMENSIONS
Rated
,
Dimension (mm)
D 2.0 25.5 C 1.0 15.5 A 0.8 11.5 F 1.0 16.5 B 0.3 12.5 E 1.0 8.5 N 0.1 2.2 I 0.3 2.5 G 1.0 8.0 J 1.0 2.2 H 0.2 1.5
Type Material Power
AT 25 WW NW RM NM WW NW RM NM WW NW RM NM WW NW RM NM WW NW WW NW 5 5 4.5 4.5 10 10 8.5 8.5 25 25 20 20 50 50 45 45 100 100
Resistance Range
()
GR-5
GR-10
GR-25
GR-50
GR-100 GR-225 GR-300
0.11.5K 0.02200 1.5K1000M 20010M 0.12K 0.02470 2K1000M 47010M 0.54.7K 0.11.2K 4.7K1000M 1.2K10M 110K 0.21.5K 10K2000M 1.5K10M 325K 0.54K 325K 225-300 0.54K
29.0
19.0
14.5
20.5
14.0
10.0
2.2
2.4
10.0
5.0
2.0
52.0
27.0
18.0
27.3
19.5
15.3
2.2
3.2
15.5
6.6
2.2
70.5 75.5 122.0
50.0 50.5 89.0
39.0 39.0 70.0
29.0 29.0 71.5
19.5 19.5 57.0
15.3 15.3 46.0
2.2 2.2 ------
3.2 3.2 4.8
15.5 15.5 44.5
7.6 7.6 21.0
2.2 2.2 4.7
177
114
76
76
64
54
------ 4.48 55.6 24.4
6.4
36

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