BC556 thru BC558
Vishay Semiconductors
formerly General Semiconductor
Small Signal Transistors (PNP)
TO-226AA (TO-92)
0.142 (3.6)
Features
0.181 (4.6)
• PNP Silicon Epitaxial Planar Transistors for switch-
ing and AF amplifier applications.
• These transistors are subdivided into three groups
A, B, and C according to their current gain.
The type BC556 is available in groups A and B,
however, the types BC557 and BC558 can be
supplied in all three groups. As complementary
types, the NPN transistors BC546...BC548 are
recommended.
• On special request, these transistors are also
manufactured in the pin configuration TO-18.
max.
0.022 (0.55)
Mechanical Data
Case: TO-92 Plastic Package
Weight: approx. 0.18g
0.098 (2.5)
Dimensions in inches
and (millimeters)
Packaging Codes/Options:
E6/Bulk – 5K per container, 20K/box
E7/4K per Ammo mag., 20K/box
Bottom
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Maximum Ratings & Thermal Characteristics Ratings at 25°C ambient temperature unless otherwise specified.
Parameter
Symbol
Value
Unit
BC556
BC557
BC558
80
50
30
Collector-Base Voltage
–VCBO
V
BC556
BC557
BC558
80
50
30
Collector-Emitter Voltage
Collector-Emitter Voltage
–VCES
V
V
BC556
BC557
BC558
65
45
30
–VCEO
Emitter-Base Voltage
–VEBO
–IC
5
100
V
mA
mA
mA
mA
mW
°C/W
°C
Collector Current
Peak Collector Current
–ICM
–IBM
IEM
200
Peak Base Current
200
Peak Emitter Current
200
Power Dissipation at Tamb = 25°C
Thermal Resistance Junction to Ambient Air
Junction Temperature
Ptot
500(1)
250(1)
150
RΘJA
Tj
Storage Temperature Range
TS
–65 to +150
°C
Note: (1) Valid provided that leads are kept at ambient temperature at a distance of 2mm from case.
Document Number 88161
09-May-02
www.vishay.com
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