ROHM BC848BW BC848B Product Specifications and User Guide
Summary
This comprehensive technical manual details the BC848 series NPN General Purpose Transistors, providing critical information for circuit designers and engineers. It covers electrical performance characteristics, absolute maximum ratings (e.g., $V_{CEO}$, $I_C$), high-speed parameters ($f_T$), detailed package specifications, and application curves like saturation voltages and AC current gain. Use this resource to ensure precise component selection for low-to-medium power switching and signal amplification applications in general electronics equipment.
Page 1 Text Content
BC848BW / BC848B
Transistors
NPN General Purpose Transistor BC848BW / BC848B
Features External dimensions (Unit : mm)
1) BVCEO minimum is 30V (IC=1m A)
BC848BW
2) Complements the BC858B / BC858BW.
+0.1 (1) Emitter
ROHM : UMT3 All terminals have same dimensions (2) Base EIAJ : SC-70 (3) Collector
BC848B, BC848C
0~0.1 0.2Min.
0.4 −0.05 (1) Emitter
All terminals have same dimensions (2) Base
1. +0 .2 (3) Collector
ROHM : SST3 −0 .1
Absolute maximum ratings (Ta=25°C) Parameter Symbol Limits Unit
Collector-base voltage VCBO Collector-emitter voltage VCEO
Emitter-base voltage VEBO Collector current IC 0.1
Collector power BC848BW
PC 0.2
dissipation
BC848B 0.35
Junction temperature Tj °C Storage temperature Tstg −65~+150 °C
∗ When mounted on a 7×5×0.6mm ceramic board.
Electrical characteristics (Ta=25°C)
Parameter Symbol Min. Typ. Max. Unit Conditions
Collector-base breakdown voltage BVCBO IC=50µA Collector-emitter breakdown voltage BVCEO IC=1m A
Emitter-base breakdown voltage BVEBO IE=50µA
n A VCB=30V
Collector cutoff current ICBO
µA VCB=30V, Ta=150°C 0.25 IC/IB=10m A/0.5m A
Collector-emitter saturation voltage VCE(sat)
0.6 IC/IB=100m A/5m A
Base-emitter saturation voltage VBE(on) 0.58 0.77 VCE/IC=5V/10m A
DC current transfer ratio h FE VCE/IC=5V/2m A Transition frequency f T MHz VCE=5V, IE=−20m A, f=100MHz Collector output capacitance Cob p F VCB=10V, IE=0, f=1MHz Collector output capacitance Cib p F VEB=0.5V, IE=0, f=1MHz
(SPEC-C22)
Rev.A 1/5
Page Summary Contents For ROHM BC848BW BC848B Product Specifications and User Guide
Manual Details
| Brand | ROHM |
|---|---|
| Pages | 6 |
| File Size | 145.89 KB |
| Published | June 18, 2026 |
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Frequently Asked Questions
Is this suitable for life-critical or high-reliability equipment?
No. If used in devices that endanger human life (like medical instruments or aerospace machinery), you must consult a sales representative first.
What is the maximum continuous operating junction temperature allowed?
The maximum rated junction temperature (Tj) for this device is 150°C.
Does the board size affect the power dissipation rating?
Yes. The collector power dissipation limit must be considered when mounting the device on a $7 imes5 imes0.6 ext{mm}$ ceramic board.