1. Product profile
1.1 General description
PNP matched double transistor in a SOT363 (SC-88) SMD plastic package. Matched
version of BC857BS. The transistors are fully isolated internally.
NPN equivalent: BCM847BS.
1.2 Features
a73 Current gain matching
a73 Base-emitter voltage matching
1.3 Applications
a73 Current mirror
a73 Differential amplifier
1.4 Quick reference data
BCM857BS
PNP matched double transistor; ∆h
FE
= 10 %
Rev. 02 — 11 April 2005 Product data sheet
Table 1: Quick reference data
Symbol Parameter Conditions Min Typ Max Unit
V
CEO
collector-emitter voltage open base - - −45 V
I
C
collector current - - −100 mA
h
FE
DC current gain V
CE
= −5 V;
I
C
= −2mA
200 290 450
∆h
FE
h
FE
matching V
CE
= −5 V;
I
C
= −2mA
--10%
∆V
BE
V
BE
matching V
CE
= −5 V;
I
C
= −2mA
--2mV