Datasheet 2SC2547, 2SC2546, 2SC2545 Datasheet (HIT)

2SC2545, 2SC2546, 2SC2547

Silicon NPN Epitaxial

Application

• Low frequency low noise amplifier

• Complementary pair with 2SA1083, 2SA1084 and 2SA1085

Outline

TO-92 (1)

1. Emitter

2. Collector

3. Base

3

2

1

2SC2545, 2SC2546, 2SC2547

Absolute Maximum Ratings (Ta = 25°C)

Item Symbol 2SC2545 2SC2546 2SC2547 Unit

Collector to base voltage V
Collector to emitter voltage V
Emitter to base voltage V
Collector current I
Emitter current I
Collector power dissipation P

CBO

CEO

EBO

C

E

C

Junction temperature Tj 150 150 150 °C
Storage temperature Tstg –55 to +150 –55 to +150 –55 to +150 °C

60 90 120 V
60 90 120 V
555V
100 100 100 mA
–100 –100 –100 mA
400 400 400 mW

2

2SC2545, 2SC2546, 2SC2547

Electrical Characteristics (Ta = 25°C)

2SC2545 2SC2546 2SC2547

Item Symbol Min Typ Max Min Typ Max Min Typ Max Unit Test conditions

Collector to base
breakdown voltage

Collector to emitter
breakdown voltage

Emitter to base
breakdown voltage

Collector cutoff current I
Emitter cutoff current I
DC current transfer ratio h

Collector to emitter
saturation voltage

Base to emitter voltage V

Gain bandwidth product f

Collector output
capacitance

Noise voltage referred
input

Note: 1. The 2SC2545, 2SC2546 and 2SC2547 are grouped by hFE as follows.

2SC2545, 2SC2546 250 to 500 400 to 800 600 to 1200
2SC2547 250 to 500 400 to 800 —

V

V

60 — — 90 — — 120 — — V IC = 10 µA, IE = 0

(BR)CBO

60 — — 90 — — 120 — — V IC = 1 mA,

(BR)CEO

RBE = ∞

V

CBO

EBO

5——5——5——VIE = 10 µA, IC = 0

(BR)EBO

— — 0.1 — — 0.1 — — 0.1 µAVCB = 50 V, IE = 0
— — 0.1 — — 0.1 — — 0.1 µAVEB = 2 V, IC = 0

1

*

250 — 1200 250 — 1200 250 — 800 VCE = 12 V,

FE

IC = 2 mA

V

— — 0.2 — — 0.2 — — 0.2 V IC = 10 mA,

CE(sat)

IB = 1 mA

— 0.6 — — 0.6 — — 0.6 — V VCE = 12 V,

BE

IC = 2 mA

T

—90— —90— —90— MHzVCE = 12 V,

IC = 2 mA

Cob — 3.0 — — 3.0 — — 3.0 — pF VCB = 10 V, IE = 0,

f = 1 MHz

e

— 0.5 — — 0.5 — — 0.5 — nV/

n

√Hz

VCE = 6V,
IC = 10 mA,
f = 1 kHz,
Rg = 0, ∆f = 1Hz

DEF

3

2SC2545, 2SC2546, 2SC2547

Maximum Collector Dissipation Curve

600

(mW)

C

400

200

Collector Power Dissipation P

0

50

Ambient Temperature Ta (°C)

Typical Output Characteristics

20

16

(mA)

C

12

8

25

20

15

10

100 150

50

40

(mA)

C

30

20

70

60
50
40

30

20

Typical Output Characteristics

10

Collector Current I

10 µA

IB = 0

0

4

Collector to Emitter Voltage V

Typical Transfer Characteristics

10

5

(mA)

C

2

1.0

0.5

8

12 16 20

P

C

= 0.4 W

(V)

CE

VCE = 12 V

4

Collector Current I

0

48

Collector to Emitter Voltage V

5 µA

IB = 0

12 16 20

(V)

CE

Collector Current I

0.2

0.1
0

0.2 0.4

Base to Emitter Voltage V

0.6 0.8 1.0
(V)

BE

4

2SC2545, 2SC2546, 2SC2547

DC Current Transfer Ratio vs.

Collector Current

5,000

FE

2,000

1,000

500

200

100

DC Current Transfer Ratio h

50

0.1

0.2 0.5 1.0 2 5
Collector Current I

Base to Emitter Saturation Voltage

(V)

10

BE(sat)

5

vs. Collector Current

2

VCE = 12 V
Pulse

10 20 50 100

(mA)

C

IC = 10 I

B

Collector to Emitter Saturation Voltage

(V)

vs. Collector Current

1.0

CE(sat)

0.5

0.2

0.1

0.05

0.02

0.01
1

Collector to Emitter Saturation Voltage V

2 5 10 20

Collector Current I

Gain Bandwidth Product vs.

Collector Current

2,000

1,000

(MHz)

T

500

IC = 10 I

(mA)

C

VCE = 12 V

B

50 100

1.0

0.5

0.2

0.1
2 5 10 20

1

Base to Emitter Saturation Voltage V

Collector Current I

(mA)

C

50 100

200

100

50

Gain Bandwidth Product f

20

1

2 5 10 20

Collector Current I

(mA)

C

50 100

5

2SC2545, 2SC2546, 2SC2547

Collector Output Capacitance vs.

Collector to Base Voltage

100

(pF)

50

ob

20

10

5

2

Collector Output Capacitance C

1

1.0 2 5 10

0.5
Collector to Base Voltage V

IE = 0
f = 1 MHz

20 50

(V)

CB

Contours of Constant Noise Figure

100

30
10

VCE = 6 V
f = 1 kHz

(kΩ)

g

3

1.0

0.3

0.1

0.03

Signal Source Resistance R

NF = 0.5 dB

1
2

4
6

10

0.01

0.01 0.10.03 0.3 1.0 3 10
Collector Current I

(mA)

C

30 100

Contours of Constant Noise Figure

100

30

(kΩ)

g

10

3

1.0
NF = 0.5 dB

0.3

0.1

0.03

Signal Source Resistance R

1
2
4

6

10

0.01

0.01 0.1

0.03 0.3 1.0 3 10
Collector Current I

VCE = 6 V
f = 120 Hz

(mA)

C

30 100

Contours of Constant Noise Figure

100

30

(kΩ)

g

10

3

1.0

0.3

NF = 0.5 dB

0.1

0.03

Signal Source Resistance R

0.01

0.01 0.1

0.03 0.3 1.0 3 10
Collector Current I

1

C

VCE = 6 V
f = 10 Hz

4

2

6

(mA)

10

30 100

6

Unit: mm

0.60 Max

0.5 ± 0.1

4.8 ± 0.3

1.27

2.54

0.7

5.0 ± 0.2

2.3 Max

12.7 Min

3.8 ± 0.3

0.5

Hitachi Code
JEDEC
EIAJ
Weight

(reference value)

TO-92 (1)
Conforms
Conforms

0.25 g

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