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BD253A
Dimensions in mm (inches).
Bipolar NPN Device in a
25.15 (0.99)
Hermetically sealed TO3
6.35 (0.25)
26.67 (1.05)
10.67 (0.42)
9.15 (0.36)
Metal Package.
11.18 (0.44) 1.52 (0.06)
3.43 (0.135)
0.97 (0.060)
1.10 (0.043)
38.61 (1.52)
39.12 (1.54)
(0.875)
22.23
max.
29.9 (1.177)
30.4 (1.197)
Bipolar NPN Device.
16.64 (0.655)
17.15 (0.675)
1 2
3
(case)
VCEO = 500V
3.84 (0.151)
4.09 (0.161)
7.92 (0.312)
12.70 (0.50)
IC = 4A
All Semelab hermetically sealed products
can be processed in accordance with the
requirements of BS, CECC and JAN,
JANTX, JANTXV and JANS specifications.
TO3 (TO204AA)
PINOUTS
1