BC856 thru BC859
Vishay Semiconductors
formerly General Semiconductor
Small Signal Transistors (PNP)
Mounting Pad Layout
0.031 (0.8)
TO-236AB (SOT-23)
0.035 (0.9)
.122 (3.1)
.110 (2.8)
0.079 (2.0)
.016 (0.4)
Top View
3
Pin Configuration
0.037 (0.95)
1 = Base, 2 = Emitter,
3 = Collector
0.037 (0.95)
Type
Marking
Type
Marking
1
2
BC856A
B
3A
3B
BC858A
3J
3K
3L
Dimensions in inches
and (millimeters)
B
C
.037(0.95)
.037(0.95)
BC857A
3E
3F
3G
BC859A
4A
4B
4C
B
C
B
C
Features
• PNP Silicon Epitaxial Planar Transistors for switching
.102 (2.6)
.094 (2.4)
.016 (0.4) .016 (0.4)
and AF amplifier applications.
• Especially suited for automatic insertion in thick and
thin-film circuits.
Mechanical Data
• These transistors are subdivided into three groups
(A, B, and C) according to their current gain. The type
BC856 is available in groups A and B, however, the types
BC857, BC558 and BC859 can be supplied in all three
groups. The BC849 is a low noise type.
Case: SOT-23 Plastic Package
Weight: approx. 0.008g
Packaging Codes/Options:
E8/10K per 13” reel (8mm tape), 30K/box
E9/3K per 7” reel (8mm tape), 30K/box
• As complementary types, the NPN transistors
BC846...BC849 are recomended.
Maximum Ratings and Thermal Characteristics (TA = 25°C unless otherwise noted)
Parameter
Symbol
Value
Unit
BC856
BC857
BC858, BC859
80
50
30
Collector-Base Voltage
–V
V
CBO
CES
BC856
BC857
BC858, BC859
80
50
30
Collector-Emitter Voltage (Base shorted)
Collector-Emitter Voltage (Base open)
–V
V
V
BC856
BC857
BC858, BC859
65
45
30
–V
–V
CEO
Emitter-Base Voltage
Collector Current
5
100
V
mA
mA
mA
mA
mW
°C/W
°C/W
°C
EBO
–I
C
CM
BM
EM
Peak Collector Current
Peak Base Current
Peak Emitter Current
–I
–I
200
200
I
200
Power Dissipation at T = 50°C
P
310(1)
450(1)
320(1)
150
SB
tot
Thermal Resistance Junction to Ambient Air
R
R
θJA
Thermal Resistance Junction to Substrate Backside
Junction Temperature
θSB
T
j
Storage Temperature Range
T
S
–65 to +150
°C
Note: (1) Device on fiberglass substrate, see layout on third page.
Document Number 88169
09-May-02
www.vishay.com
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