NXP Semiconductors
BC637; BCP55; BCX55
60 V, 1 A NPN medium power transistors
8. Package outline
4.2
3.6
0.45
0.38
4.2
3.6
0.45
0.38
0.48
0.40
1
3 max
0.48
0.40
1
4.8
4.4
2
2.54
3
1.27
4.8
4.4
2
5.08
2.54
3
5.2
5.0
Dimensions in mm
14.5
12.7
04-11-16
5.2
5.0
Dimensions in mm
14.5
12.7
04-06-28
Fig 14. Package outline SOT54 (SC-43A/TO-92)
0.45
0.38
4.2
3.6
1.27
Fig 15. Package outline SOT54A
6.7
6.3
3.1
2.9
4
1.8
1.5
2.5
max
1
4.8
4.4
2
0.48
0.40
7.3
6.7
2.54
3
1.27
1
2
4.6
05-01-10
Dimensions in mm
3
0.8
0.6
3.7
3.3
1.1
0.7
5.2
5.0
Dimensions in mm
14.5
12.7
2.3
0.32
0.22
04-11-10
Fig 16. Package outline SOT54 variant
4.6
4.4
1.8
1.4
Fig 17. Package outline SOT223 (SC-73)
1.6
1.4
2.6
2.4
4.25
3.75
1.2
0.8
0.48
0.35
3
0.44
0.23
06-08-29
1
0.53
0.40
1.5
Dimensions in mm
2
3
Fig 18. Package outline SOT89 (SC-62/TO-243)
BC637_BCP55_BCX55_7
© NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 07 — 25 June 2007
11 of 15
PHILIPS [ NXP SEMICONDUCTORS ]
