Features
l Ideally Suited for Automatic Insertion
l 150
o
C Junction Temperature
l For Switching and AF Amplifier Applications

Mechanical Data
l Case: SOT-23, Molded Plastic
l Terminals: Solderable per MIL-STD-202, Method 208
l Polarity: See Diagram
l Weight: 0.008 grams ( approx.)
Type Marking Type Marking
BC856A 3A BC857C 3G
BC856B 3B BC858A 3J
BC857A 3E BC858B 3K
BC857B 3F BC858C 3L
Marking Code (Note 2)
Maximum Ratings @ 25
o
C Unless Otherwise Specified
Charateristic Symbol Value Unit
Collector-Base Voltage BC856
BC857
BC858
V
CBO
-80
-50
-30
V
Collector-Emitter Voltage BC856
BC857
BC858
V
CEO
-65
-45
-30
V
Emitter-Base Voltage VEBO -5.0 V
Collector Current I
C
-100 mA
Peak Collector Current I
CM
-200 mA
Peak Emitter Current I
EM
-200 mA
Power Dissipation@T
s
=50
o
C(Note1) P
d
310 mW
Operating & Storage Temperature T
j
, T
STG
-55~150
o
C
Note: 1. Package mounted on ceramic substrate 0.7mm X 2.5cm
2
area.
2. Current gain subgroup “C” is not available for BC856
BC856A
THRU
BC858C
PNP Small
Signal Transistor
310mW

Suggested Solder
Pad Layout
DIMENSIONS
INCHES MM
DIM MIN MAX MIN MAX NOTE
A .110 .120 2.80 3.04
B .083 .098 2.10 2.64
C .047 .055 1.20 1.40
D .035 .041 .89 1.03
E .070 .081 1.78 2.05
F .018 .024 .45 .60
G .0005 .0039 .013 .100
H .035 .044 .89 1.12
J .003 .007 .085 .180
K .015 .020 .37 .51
A
B
C
D
EF
G H J
.079
2.000
inches
mm
.031
.800
.035
.900
.037
.950
.037
.950
SOT-23
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