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BUT91
Dimensions in mm (inches).
25.
15 (0.
99) 26.
67 (1.
05) 10.
67 (0.
42) 11.
18 (0.
44) 1.
52 (0.
06) 3.
43 (0.
135)
6.
35 (0.
25) 9.
15 (0.
36)
Bipolar
NPN Device in a Hermetically sealed TO3 Metal Package.
38.
61 (1.
52) 39.
12 (1.
54)
1.
47 (0.
058) 1.
60 (0.
063)
29.
9 (1.
177) 30.
4 (1.
197)
16.
64 (0.
655) 17.
15 (0.
675)
1
2
3 (case) 3.
84 (0.
151) 4.
09 (0.
161) 7.
92 (0.
312) 12.
70 (0.
50)
TO3 (TO204AE) PINOUTS
1 – Base 2 – Emitter Case - Collector
Parameter VCEO* IC(CONT) hFE ft PD
Test Conditions
22.
23 (0.
875) max.
Min.
Typ.
Max.
200 50
Units V A Hz
@ 4/5 (VCE / IC)
20 8M
120
250
W
* Maximum Working Voltage This is a shortform datasheet.
For a full datasheet please con...