
DISCRETE SEMICONDUCTORS
DATA SH EET
ook, halfpage
M3D088
BC856; BC857; BC858
PNP general purpose transistors
Product specification
Supersedes data of 1999 Apr 12
2002 Feb 04

Philips Semiconductors Product specification
PNP general purpose transistors BC856; BC857; BC858
FEATURES
• Low current (max. 100 mA)
• Low voltage (max. 65 V).
APPLICATIONS
• General purpose switching and amplification.
DESCRIPTION
PNP transistor in a SOT23 plastic package.
NPN complements: BC846, BC847 and BC848.
MARKING
TYPE NUMBER MARKING CODE
BC856 3D*
BC856A 3A*
BC856B 3B*
BC857 3H*
BC857A 3E*
BC857B 3F*
BC857C 3G*
BC858B 3K*
(1)
PINNING
PIN DESCRIPTION
1 base
2 emitter
3 collector
handbook, halfpage
Top view
3
1
21
MAM256
Fig.1 Simplified outline (SOT23) and symbol.
3
2
Note
1. * = -: made in Hong Kong.
* = t: made in Malaysia.
2002 Feb 04 2

Philips Semiconductors Product specification
PNP general purpose transistors BC856; BC857; BC858
LIMITING VALUES
In accordance with the Absolute Maximum System (IEC 60134).
SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT
V
CBO
V
CEO
V
EBO
I
C
I
CM
I
BM
P
tot
T
stg
T
j
T
amb
collector-base voltage open emitter
BC856 −−80 V
BC857 −−50 V
BC858 −−30 V
collector-emitter voltage open base
BC856 −−65 V
BC857 −−45 V
BC858 −−30 V
emitter-base voltage open collector −−5V
collector current (DC) −−100 mA
peak collector current −−200 mA
peak base current −−200 mA
total power dissipation T
≤ 25 °C; note 1 − 250 mW
amb
storage temperature −65 +150 °C
junction temperature − 150 °C
operating ambient temperature −65 +150 °C
Note
1. Transistor mounted on an FR4 printed-circuit board, standard footprint.
THERMAL CHARACTERISTICS
SYMBOL PARAMETER CONDITIONS VALUE UNIT
R
th j-a
thermal resistance from junction to
in free air; note 1 500 K/W
ambient
Note
1. Transistor mounted on an FR4 printed-circuit board, standard footprint.
2002 Feb 04 3

Philips Semiconductors Product specification
PNP general purpose transistors BC856; BC857; BC858
CHARACTERISTICS
T
=25°C; unless otherwise specified.
amb
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
I
CBO
I
EBO
h
FE
V
CEsat
V
BEsat
V
BE
C
c
f
T
F noise figure I
collector-base cut-off current VCB= −30 V; IE=0 −−1−15 nA
V
= −30 V; IE=0;
CB
T
= 150 °C
j
−−−4µA
emitter-base cut-off current VEB= −5 V; IC=0 −−−100 nA
DC current gain IC= −2 mA; VCE= −5V
BC856 125 − 475
BC857 125 − 800
BC856A; BC857A 125 − 250
BC856B; BC857B; BC858B 220 − 475
BC857C 420 − 800
collector-emitter saturation voltage IC= −10 mA; IB= −0.5 mA −−75 −300 mV
I
= −100 mA; IB= −5 mA;
C
−−250 −650 mV
note 1
base-emitter saturation voltage IC= −10 mA; IB= −0.5 mA −−700 − mV
I
= −100 mA; IB= −5 mA;
C
−−850 − mV
note 1
base-emitter voltage IC= −2 mA; VCE= −5V −600 −650 −750 mV
I
= −10 mA; VCE= −5V −−−820 mV
C
collector capacitance VCB= −10 V; IE=Ie=0;
− 4.5 − pF
f = 1 MHz
transition frequency VCE= −5 V; IC= −10 mA;
100 −−MHz
f = 100 MHz
= −200 µA; VCE= −5V;
C
− 210dB
RS=2kΩ; f = 1 kHz;
B = 200 Hz
Note
1. Pulse test: t
≤ 300 µs; δ≤0.02.
p
2002 Feb 04 4