2SC458 (LG), 2SC2310
Silicon NPN EpitaxialApplication• Low frequency low noise amplifier• Complementary pair with 2SA1031 and 2SA1032

OutlineTO-92 (1)

1. Emitter2. Collector
3. Base321

2SC458 (LG), 2SC2310
Absolute Maximum Ratings (Ta = 25°C)
ItemSymbol

2SC458 (LG)

2SC2310

Unit

Collector to base voltage

VCBO

3055

V

Collector to emitter voltage

VCEO

3050V

Emitter to base voltage

VEBO

55V

Collector current

IC100

100mA

Emitter current

IE–100–100mA

Collector power dissipation

PC200200mW

Junction temperature

Tj150150°C

Storage temperature

Tstg–55 to +150

–55 to +150°C

22SC458 (LG), 2SC2310
Electrical Characteristics (Ta = 25°C)
2SC458 (LG)

2SC2310

ItemSymbol

Min

TypMaxMin

TypMaxUnit

Test conditions

Collector to basebreakdown voltage

V(BR)CBO

30

—

—

55——

V

I C = 10 µA, IE = 0

Collector to emitter
breakdown voltage

V(BR)CEO30

—

—

50—

—

V

I C = 1 mA, RBE = ∞Emitter to basebreakdown voltage

V(BR)EBO

5——5——V

I E = 10 µA, IC = 0

Collector cutoff current

I CBO——0.5—

—

0.5µA

VCB =18 V, IE = 0

Emitter cutoff current

I EBO

—

—

0.5—

—

0.5

µA

VEB = 2 V, IC = 0100

—500100

—

320—

—

0.2—

—

0.2

V

I C = 10 mA, IB = 1 mA

Base to emitter voltage VBE

—

0.67

0.75

—

0.67

0.75

V

VCE = 12 V, IC = 2 mA

Gain bandwidth product f T

—

230

—

—

230—

MHz

VCE = 12 V, IC = 2 mA

Collector output
capacitance

Cob

—

1.8

3.5

—

1.83.5pF

VCB = 10 V, IE = 0,f = 1 MHz

Noise figure

NF—

35—

35dB

VCE = 6 V, IC = 0.1 mA,f = 120 Hz, Rg = 500 Ω

Small signal input
impedance

hie

—

16.5

—

—

16.5—

kΩ

VCE = 5V, IC = 0.1mA,
f = 270 Hz

Small signal voltage
feedback ratio

hre

—

70

—

—

70

—

× 10 –6

Small signal current
transfer ratio

hfe

—

130—

—

130

—

Small signal output
admittance

hoe

—

11.0

—

—

11.0

—

DC current transfer ratio hFE*
Collector to emittersaturation voltage

Note:

1VCE(sat)

VCE = 12 V, IC = 2 mA

µS

1. The 2SC458 (LG) and 2SC2310 are grouped by hFE as follows.
BCD2SC458 (LG) 100 to 200

160 to 320

250 to 500

2SC2310160 to 320—100 to 200

32SC458 (LG), 2SC2310
Typical Output Characteristics

200100P

10Collector Current IC (mA)

Collector Power Dissipation PC (mW)Maximum Collector Dissipation Curve300

602050

80m

W

40

630

42010 µA

2050
100
150
Ambient Temperature Ta (°C)

510152025Collector to Emitter Voltage VCE (V)DC Current Transfer Ratio vs.
Collector Current

Typical Transfer Characteristics
3004DC Current Transfer Ratio hFE

5Collector Current IC (mA)

=IB = 00

VCE = 12 V

32104

C0.2
0.4
0.6
0.8
Base to Emitter Voltage VBE (V)1.0

VCE = 12 V

200

Ta =75°C
25100

00.03

0.1
0.3
1.0
310Collector Current IC (mA)30

2SC458 (LG), 2SC2310
Base to Emitter Voltage vs.
Ambient Temperature

300

0.9
f = 270 Hz
VCE = 12 V

Base to Emitter Voltage VBE (V)Small Signal Current Transfer Ratio hfe

Small Signal Current Transfer Ratio vs.
Collector Current

200

100

00.03

0.1

0.3

1.03

100.8

0.7

0.60.50.4–2030Collector Current IC (mA)

IE = 0f = 1 MHz

32148121620Collector to Base Voltage VCB (V)

Emitter Input Capacitance Cib (pF)Collector Output Capacitance Cob (pF)

805500204060
Ambient Temperature Ta (°C)

Emitter Input Capacitance vs.
Emitter to Base Voltage

Collector Output Capacitance vs.
Collector to Base Voltage

4VCE = 12 V
IC = 2 mA

IC = 0f = 1 MHz
432

102468Emitter to Base Voltage VEB (V)105

2SC458 (LG), 2SC2310
Contours of Constant Noise FigureContours of Constant Noise Figure
1014125Signal Source Resistance Rg (kΩ)

Signal Source Resistance Rg (kΩ)

10102

NF = 1dB

82

1.0

630.5

40.2

VCE = 6 V
6f = 120 Hz
80.1
0.05 0.1 0.2
0.5
1.0 2.0
Collector Current IC (mA)

2NF
1.0

1.5 d

B

0.5
2
0.2
0.1
0.05

6=0213
NF = 0.5 dB
1.00.5

20.2

34

0.1 8
0.05 0.1 0.2
0.5
1.0 2.0
Collector Current IC (mA)

Noise Figure vs. Frequency

8
Noise Figure NF (dB)

Signal Source Resistance Rg (kΩ)

VCE = 6 V
f = 10 kHz

2104541.0

Contours of Constant Noise Figure1085 V =6VCEf = 1 kHz

IC = 0.1 mARg = 500 Ω
VCE = 6 V

642
40.1 0.2
0.5
1.0 2.0Collector Current IC (mA)

030

100

300
1k
3k
Frequency f (Hz)

10k

30k

2SC458 (LG), 2SC2310
Noise Figure vs. Collector to Emitter Voltage

Noise Figure NF (dB)

8IC = 0.1 mARg = 500 Ωf = 120 Hz

6420251020Collector to Emitter Voltage VCE (V)h Parameter vs. Collector Current
1005020 VCE = 6 V
10 f = 270 Hz5hie2h1.0 hfe re
0.5
hoe
0.2
0.10.05hoe
hrehfe

hie

0.02
0.01
0.010.02 0.05 0.1 0.2 0.5 1.0 2 5 10Collector Current IC (mA)30h Parameter vs. Collector to
Emitter Voltage

1.8
Percentage of Relative to VCE = 5V

Percentage of Relative to IC = 0.1mA

1

IC = 0.1 mA
f = 270 Hz
1.6

hre

1.4

hoe

1.2hoe1.0 hfehie
0.8
0.5hfehie

hre

1.0251020Collector to Emitter Voltage VCE (V)7

Unit: mm

4.8 ± 0.3

0.7

0.60 Max
0.5 ± 0.1

12.7 Min

2.3 Max

5.0 ± 0.2

3.8 ± 0.3

0.5

1.27
2.54

Hitachi CodeJEDEC
EIAJ
Weight (reference value)

TO-92 (1)
Conforms
Conforms
0.25 gCautions
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