General Purpose Transistor

PNP Silicon

Lead(Pb)-Free

P b

BC856AW/BW

BC857AW/BW

BC858AW/BW/CW

SOT-323(SC-70)

EMITTER

BASE

COLLECTOR

Device Marking

BC856AW=3A; BC856BW=3B; BC857AW=3E;BC857BW=3F; BC858AW=3J; BC858BW;=3K; BC858CW=3L

1. FR-5 = 1.0 x 0.75 x 0.062 in.

MaximumRatings

=25癈unless otherwise noted)

Collector-Emitter Voltage BC856

BC857
BC858

Collector-Base Voltage BC856

BC857
BC858

Collector Current-Continuous

100

Emitter-Base Voltage BC856

BC857
BC858

Rating

Symbol

Value

Unit

EBO

CBO

CEO

-65
-45
-30

-5.0
-5.0
-5.0

-80
-50
-30

Junction Temperature Range

Storage Temperature Range

Tstg

-55 to +150

癈/W

癈

Total Device Dissipation FR-5 Board

(1)

=25癈

Thermal Resistance, Junctionto Ambient

(1)

833

150

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4.5

-
-

BC856AW/BW

BC857AW/BW

BC858AW/BW/CW

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2/6

14-Jun-06

Unit

Characteristics

Symbol

Min

Max

Typ

WEITRON

Electrical Characteristics

=25篊 Unless Otherwise noted)

Off Characteristics

On Characteristics

Small-signal Characteristics

Base-Emitter On Voltage
I

=-2.0mA, V

=-5.0V

=-10mA, V

=-5.0V

BE(on)

(BR)CEO

(BR)CES

(BR)CBO

(BR)EBO

CBO

Collector-Emitter Breakdown Voltage
I

=-10mA

BC856 Series
BC857 Series
BC858 Series

-65
-45
-30
-80
-50
-30
-80
-50
-30

-5.0
-5.0
-5.0

BC856 Series
BC857 Series
BC858 Series

BC856 Series
BC857 Series
BC858 Series
BC856 Series
BC857 Series
BC858 Series

nA
礎

-15

-4.0

Collector-Emitter Breakdown Voltage
I

=-10uA, V

Collector-Base Breakdown Voltage
I

=-10礎

Emitter-Base Breakdown Voltage
I

=-1.0礎

Collector Cutoff Current
V

=-30V

=-30V, T

=150癈

DC Current Gain
I

=-10礎, V

=-5.0V

=-2.0mA,V

=-5.0V)

BC856A,BC857A,BC858A
BC856B,BC857B,BC858B
BC858C
BC856A,BC857A,BC858A
BC856B,BC857B,BC858B
BC858C

150
270
180
290
520

-
-
-

125
220
420

-
-
-

250
450
800

CE(sat)

BE(sat)

-0.6

-0.3

-0.65

-0.75
-0.82

-
-

Base-Emitter Saturation Voltage
I

=-10mA, I

=-0.5mA

=-100mA I

=-5.0mA

-0.7
-0.9

Collector-Emitter Saturation Voltage
I

=-10mA, I

=-0.5mA

=-100mA,I

=-5.0mA

Current-Gain-Band width Product
I

=-10mA, V

=-5.0V, f=100MHz

MHz

100

Output Capacitance
V

=-10V,f=1.0MHz

Noise Figure
IC=-0.2mA, VCE=-5.0V, Rs=2.0k, f=1.0kHz, BW=200Hz

, COLLECTOR CURRENT (mAdc)

Figure 1. Normalized DC Current Gain

, COLLECTOR CURRENT (mAdc)

Figure 2. "Saturation" and "On" Voltages

�0.2

�0.5

�1.0

�2.0

�5.0

�10

�20

�50

�100

�200

= �10 V

= 25癈

2.0

1.5

1.0

0.7

0.5

0.3

0.2

�0.1

�0.2

�0.5

�1.0

�2.0

�5.0

�10

�20

�50 �100

= 25癈

BE(sat)

@ I

=10

BE(on)

@ V

= �10 V

CE(sat)

@ I

= 10

= 25癈

)

S
T
L

V
(

A
T
L

V

,
V

�1.0

�0.9

�0.8

�0.7

�0.6

�0.5

�0.4

�0.3

�0.2

�0.1

)

C
�

/
V

m
(

T

N
E
I

C
I
F
F
E

C

E

U
T
A

R
E
P

M
E
T

,

1.0

1.2

1.6

2.0

2.4

2.8

, BASE CURRENT (mA)

Figure 3. Collector Saturation Region

)
V
(

E

G
A
T
L

O
V

R
E
T
T
I

M
E

�

O
T

C
E
L
L

C

,

= �200 mA

�55癈 to +125癈

, COLLECTOR CURRENT (mA)

Figure 4. Base璄mitter Temperature Coefficient

�0.2

�1.0

�10

�100

�0.02

�0.1

�1.0

�10

�20

�2.0

�1.6

�1.2

�0.8

�0.4

�10 mA

= �100 mA

= �20 mA

= �50 mA

E
F

N
I
A

G

T

N
E

D
E
Z
I
L
A

N

,

, REVERSE VOLTAGE (VOLTS)

Figure 5. Capacitances

, COLLECTOR CURRENT (mAdc)

Figure 6. Current璆ain � Bandwidth Product

=25癈

= �10V

= 25癈

H
T
D
I

W
D
N
A
B

�

N
I
A
G

�
T
N
E
R
R
U
C

,

)
z
H

M
(

T
C
U
D
O
R
P

)
F
p
(

A
T
I

A
P

C

,

400

300

200

150

100

10.0

7.0

5.0

3.0

2.0

1.0

�0.4

�0.6

�1.0

�2.0

�4.0 �6.0

�10

�20 �30 �40

�0.5

�1.0

�2.0

�3.0

�5.0

�10

�20

�30

�50

BC856AW/BW

BC857AW/BW

BC858AW/BW/CW

BC857 / BC858

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WEITRON

3/6

14-Jun-06

WEITRON

, COLLECTOR CURRENT (mA)

Figure 7. DC Current Gain

, COLLECTOR CURRENT (mA)

Figure 8. "On" Voltage

, BASE CURRENT (mA)

Figure 9. Collector Saturation Region

, COLLECTOR CURRENT (mA)

Figure 10. Base璄mitter Temperature Coefficient

BE(sat)

@ I

=10

= �5.0 V

= 25癈

= �5.0V

= 25癈

CE(sat)

@ I

= 10

)
S
T
L

O
V
(

E

G
A
T
L

O
V

R
E
T
T
I

M
E

�

O
T

C
E
L
L

C

,

B
V

)

C
�
/

m
(

T

E
I

C
I
F
F

U
T
A

E
T

,

)

S
T
L

V
(

A
T
L

V

,
V

�10mA

�100mA

�20mA

�200mA

= 25癈

for V

�55癈 to 125癈

�1.0

�1.4

�1.8

�2.2

�2.6

�3.0

�1.0

�0.8

�0.6

�0.4

�0.2

2.0

1.0

0.5

0.2

�2.0

�1.6

�1.2

�0.8

�0.4

�0.1�0.2

�1.0 �2.0 �5.0�10 �20 �50 �100�200

�0.2

�0.5 �1.0 �2.0

�5.0 �10 �20

�50 �100 �200

�0.2

�0.5 �1.0 �2.0

�5.0 �10 �20

�50 �100 �200

�0.02

�0.05 �0.1 �0.2

�0.5 �1.0 �2.0

�5.0 �10 �20

E
F

)

E
Z
I
L

N
(

N
I

G

T

D

,

�50mA

, REVERSE VOLTAGE (VOLTS)

Figure 11. Capacitance

, COLLECTOR CURRENT (mA)

Figure 12. Current璆ain � Bandwidth Product

)
F
p
(

A
T
I

A
P

C

,

T

T
C
U
D
O
R
P

H
T
D
I

W
D
N
A
B

�

N
I
A
G

�
T
N
E
R
R
U
C

,

= 25癈

= �5.0V

�0.1 �0.2 �0.5

�1.0 �2.0

�5.0 �10 �20

�50 �100

�1.0

�10

�100

6.0

4.0

2.0

500

200

100

BC856AW/BW

BC857AW/BW

BC858AW/BW/CW

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BC856

BC856AW/BW

BC857AW/BW

BC858AW/BW/CW

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t, TIME (ms)

Figure 13. Thermal Response

, COLLECTOR璄MITTER VOLTAGE (V)

Figure 14. Active Region Safe Operating Area

BONDING WIRE LIMIT
THERMAL LIMIT
SECOND BREAKDOWN LIMIT

The safe operating area curves indicate I

璙

limits of the

transistor that must be observed for reliable operation. Collector
load lines for specific circuits must fall below the limits indicated by
the applicable curve.

The data of Figure 14 is based upon T

J(pk)

= 150癈; T

or T

is variable depending upon conditions. Pulse curves are valid for
duty cycles to 10% provided T

J(pk)

< 150癈. T

J(pk)

may be calcu-

lated from the data in Figure 13. At high case or ambient
temperatures, thermal limitations will reduce the power that can
be handled to values less than the limitations imposed by the sec-
ondary breakdown.

BC558
BC557
BC556

(t) = r(t) R

= 83.3癈/W MAX

(t) = r(t) R

= 200癈/W MAX

D CURVES APPLY FOR POWER
PULSE TRAIN SHOWN
READ TIME AT t

J(pk)

� T

= P

(pk)

(t)

)

m
(

T

O
T

E
L
L

C

,

H
T

T

E
I

R
T

,
)
t

(
r

)

E
Z
I
L
A

N
(

E

N
A
T
S
I
S
E

DUTY CYCLE, D = t

(pk)

SINGLE PULSE

= 25癈

3 ms

1.0
0.7
0.5

0.3
0.2

0.1

0.07
0.05

0.03
0.02

0.01

D=0.5

0.2

0.1

0.05

0.1

0.2

0.5

1.0

2.0

5.0

100

200

500

1.0k 2.0k

5.0k

10k

�1.0

�0.5

�10

�30 �45 �65 �100

�200

�100

�50

�10

�5.0

�2.0

协谢械泻褌褉芯薪薪褘泄 泻芯屑锌芯薪械薪褌: BC858AW

协谢械泻褌褉芯薪薪褘泄泻芯屑锌芯薪械薪褌: BC858AW