BC490A Datasheet BC490AG, BC490, BC490A | P1-P3

September, 2005 − Rev. 2

1 Publication Order Number:

BC490/D

BC490, BC490A

High Current Transistors

PNP Silicon

Features

• Pb−Free Packages are Available*

MAXIMUM RATINGS

Rating Symbol Value Unit

Collector − Emitter Voltage V

CEO

−80 Vdc

Collector − Base Voltage V

CBO

−80 Vdc

Emitter − Base Voltage V

EBO

−4.0 Vdc

Collector Current − Continuous I

C

−1.0 Adc

Total Device Dissipation

@ T

A

= 25°C

Derate above 25°C

P

D

625

5.0

mW

mW/°C

Total Device Dissipation

@ T

C

= 25°C

Derate above 25°C

P

D

1.5

12

W

mW/°C

Operating and Storage Junction

Temperature Range

T

J

, T

stg

−55 to +150 °C

Maximum ratings are those values beyond which device damage can occur.

Maximum ratings applied to the device are individual stress limit values (not

normal operating conditions) and are not valid simultaneously. If these limits are

exceeded, device functional operation is not implied, damage may occur and

reliability may be affected.

THERMAL CHARACTERISTICS

Characteristic Symbol Max Unit

Thermal Resistance,

Junction−to−Ambient

R

q

JA

200 °C/W

Thermal Resistance,

Junction−to−Case

R

q

JC

83.3 °C/W

*For additional information on our Pb−Free strategy and soldering details, please

download the ON Semiconductor Soldering and Mounting Techniques

Reference Manual, SOLDERRM/D.

Device Package Shipping

ORDERING INFORMATION

BC490 TO−92

TO−92

CASE 29

STYLE 17

5000 Units / Box

3

2

1

5000 Units / Box

COLLECTOR

1

2

BASE

3

EMITTER

BC490AZL1 TO−92 2000 / Ammo Box

http://onsemi.com

MARKING

DIAGRAM

BC

490A

AYWW G

G

BC490A = Device Code

A = Assembly Location

Y = Year

WW = Work Week

G = Pb−Free Package

(Note: Microdot may be in either location)

BC490G TO−92

(Pb−Free)

5000 Units / Box

TO−92BC490A

BC490AG TO−92

(Pb−Free)

5000 Units / Box

BC490AZL1G TO−92

(Pb−Free)

2000 / Ammo Box

BC490, BC490A

http://onsemi.com

2

ELECTRICAL CHARACTERISTICS (T

A

= 25°C unless otherwise noted)

Characteristic

Symbol Min Typ Max Unit

OFF CHARACTERISTICS

Collector−Emitter Breakdown Voltage (Note 1)

(I

C

= −10 mAdc, I

B

= 0)

V

(BR)CEO

−80 − − Vdc

Collector−Base Breakdown Voltage

(I

C

= −100 mAdc, I

E

= 0)

V

(BR)CBO

−80 − − Vdc

Emitter−Base Breakdown Voltage

(I

E

= −10 mAdc, I

C

= 0)

V

(BR)EBO

−4.0 − − Vdc

Collector Cutoff Current

(V

CB

= −60 Vdc, I

E

= 0)

I

CBO

− − −100 nAdc

ON CHARACTERISTICS

DC Current Gain

(I

C

= −10 mAdc, V

CE

= −2.0 Vdc)

(I

C

= −100 mAdc, V

CE

= −2.0 Vdc) BC490

BC490A

(I

C

= −1.0 Adc, V

CE

= −5.0 Vdc)

h

FE

40

60

100

15

−

140

−

400

250

−

Collector−Emitter Saturation Voltage

(I

C

= −500 mAdc, I

B

= −50 mAdc)

(I

C

= −1.0 Adc, I

B

= −100 mAdc)

V

CE(sat)

−

−0.25

−0.5

−

Vdc

Base−Emitter Saturation Voltage

(I

C

= −500 mAdc, I

B

= −50 mAdc)

(I

C

= −1.0 Adc, I

B

= −100 mAdc)

V

BE(sat)

−

−0.9

−1.0

−1.2

−

Vdc

DYNAMIC CHARACTERISTICS

Current−Gain − Bandwidth Product

(I

C

= −50 mAdc, V

CE

= −2.0 Vdc, f = 100 MHz)

f

T

− 150 − MHz

Output Capacitance

(V

CB

= −10 Vdc, I

E

= 0, f = 1.0 MHz)

C

ob

− 9.0 − pF

Input Capacitance

(V

EB

= −0.5 Vdc, I

C

= 0, f = 1.0 MHz)

C

ib

− 110 − pF

1. Pulse Test: Pulse Width = 300 ms, Duty Cycle 2%.

Figure 1. Switching Time Test Circuits

*Total Shunt Capacitance of Test Jig and Connectors

For PNP Test Circuits, Reverse All Voltage Polarities

5.0 ms

+10 V

0

V

in

5.0 mF

100

TURN−ON TIME

−1.0 V

V

CC

+40 V

R

L

OUTPUT

*C

S

< 6.0 pF

t

r

= 3.0 ns

5.0 ms

V

in

5.0 mF

100

TURN−OFF TIME

+V

BB

V

CC

+40 V

R

L

OUTPUT

*C

S

< 6.0 pF

t

r

= 3.0 ns

R

B

R

B

BC490, BC490A

http://onsemi.com

3

Figure 2. Current−Gain — Bandwidth Product

I

C

, COLLECTOR CURRENT (mA)

−200−70−50−30−20−10−7.0−5.0−3.0−2.0

200

100

70

50

20

V

CE

= −2.0 V

T

J

= 25°C

f, CURRENT−GAIN  BANDWIDTH PRODUCT (MHz)

T

C, CAPACITANCE (pF)

t, TIME (ns)

Figure 3. Capacitance

V

R

, REVERSE VOLTAGE (VOLTS)

−100−50−20−10−5.0−2.0−1.0−0.5−0.2−0.1

100

70

50

30

20

5.0

T

J

= 25°C

C

obo

C

ibo

10

Figure 4. Switching Time

I

C

, COLLECTOR CURRENT (mA)

−500−50−30−20−10−7.0−5.0

1.0 k

V

CC

= −40 V

I

C

/I

B

= 10

I

B1

= I

B2

T

J

= 25°C

700

500

300

200

100

70

50

30

20

10

t

s

t

f

t

r

t

d

@ V

BE(off)

= −0.5 V

−100

7.0

−200−100−70 −300

30

Figure 5. Thermal Response

t, TIME (ms)

1.0

r(t) TRANSIENT THERMAL RESISTANCE

(NORMALIZED)

0.01

0.02

0.03

0.05

0.07

0.1

0.2

0.3

0.5

0.7

1.0 2.0 5.0 10 20 50 100 200 500 1.0k 2.0k 5.0k 10k 20k

50k

100

D = 0.5

0.2

0.1

0.02

0.01

SINGLE PULSE

DUTY CYCLE, D = t

1

/t

2

D CURVES APPLY FOR POWER

PULSE TRAIN SHOWN

READ TIME AT t

1

(SEE AN−469)

T

J(pk)

− T

C

= P

(pk)

Z

q

JC(t)

T

J(pk)

− T

A

= P

(pk)

Z

q

JA(t)

t

1

t

2

P

(pk)

Z

q

JC(t)

= r(t) • R

q

JC

Z

q

JA(t)

= r(t) • R

q

JA

SINGLE PULSE

BC490A

BC490A

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