NO Small Signal Bipolar Junction Transistors (BJT) 2,400+

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Part RoHS Manufacturer Polarity or Channel Type Configuration Surface Mount Nominal Transition Frequency (fT) Maximum Power Dissipation (Abs) Maximum Collector Current (IC) Package Body Material Transistor Application Maximum Rise Time (tr) Maximum VCEsat Minimum DS Breakdown Voltage Terminal Form Package Shape Operating Mode No. of Elements Maximum Fall Time (tf) No. of Terminals Package Style (Meter) Sub-Category Field Effect Transistor Technology Maximum Power Dissipation Ambient Minimum DC Current Gain (hFE) Maximum Operating Temperature Maximum Collector-Base Capacitance Transistor Element Material Maximum Collector-Emitter Voltage Maximum Turn On Time (ton) Minimum Operating Temperature Maximum Turn Off Time (toff) Terminal Finish Maximum Drain-Source On Resistance Maximum Drain Current (ID) Terminal Position JESD-30 Code Moisture Sensitivity Level (MSL) Case Connection Qualification Additional Features JEDEC-95 Code JESD-609 Code Maximum Time At Peak Reflow Temperature (s) Peak Reflow Temperature (C) Maximum Feedback Capacitance (Crss) Reference Standard

BC549CT&A

Continental Device India

NPN

SINGLE

NO

300 MHz

.625 W

.1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

420

150 Cel

SILICON

30 V

MATTE TIN

BOTTOM

O-PBCY-T3

Not Qualified

LOW NOISE

TO-92

e3

BC550C

Onsemi

NPN

SINGLE

NO

250 MHz

.625 W

.1 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

420

150 Cel

SILICON

45 V

TIN LEAD

BOTTOM

O-PBCY-T3

Not Qualified

LOW NOISE

TO-92

e0

235

BC550-C

Infineon Technologies

NPN

SINGLE

NO

200 MHz

.625 W

.1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

420

150 Cel

SILICON

Tin/Lead (Sn/Pb)

BOTTOM

O-PBCY-T3

Not Qualified

e0

ZTX605STZ

Diodes Incorporated

NPN

DARLINGTON

NO

150 MHz

1 A

PLASTIC/EPOXY

SWITCHING

WIRE

RECTANGULAR

1

3

IN-LINE

500

SILICON

120 V

MATTE TIN

SINGLE

R-PSIP-W3

Not Qualified

e3

30

260

CECC

2N4033

Texas Instruments

PNP

SINGLE

NO

150 MHz

.8 W

1 A

METAL

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

75

175 Cel

SILICON

80 V

100 ns

400 ns

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

TO-39

NOT SPECIFIED

NOT SPECIFIED

2SA1015-Y

Micro Commercial Components

SINGLE

NO

80 MHz

.15 A

PLASTIC/EPOXY

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

120

SILICON

50 V

TIN LEAD

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e0

2SA1015Y

Continental Device India

PNP

SINGLE

NO

80 MHz

.4 W

.15 A

PLASTIC/EPOXY

.3 V

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

25

125 Cel

7 pF

SILICON

50 V

TIN LEAD

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e0

JANTX2N2920U

Microchip Technology

NPN

SEPARATE, 2 ELEMENTS

NO

1.25 W

.03 A

METAL

WIRE

ROUND

2

6

CYLINDRICAL

Other Transistors

300

200 Cel

SILICON

60 V

BOTTOM

O-MBCY-W6

Qualified

TO-78

NOT SPECIFIED

NOT SPECIFIED

MIL-19500/355

KSC945GTA

Onsemi

NPN

SINGLE

NO

300 MHz

.25 W

.15 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

200

150 Cel

SILICON

50 V

MATTE TIN

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e3

MPSA13PBFREE

Central Semiconductor

NPN

DARLINGTON

NO

125 MHz

.625 W

.5 A

PLASTIC/EPOXY

1.5 V

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

.625 W

10000

150 Cel

SILICON

30 V

-65 Cel

MATTE TIN OVER NICKEL

BOTTOM

O-PBCY-T3

TO-92

e3

MPSA56-AP

Micro Commercial Components

PNP

SINGLE

NO

50 MHz

.5 A

PLASTIC/EPOXY

AMPLIFIER

WIRE

ROUND

1

3

CYLINDRICAL

100

150 Cel

SILICON

80 V

Matte Tin (Sn)

BOTTOM

O-PBCY-W3

1

Not Qualified

TO-92

e3

10

260

SS9014DBU

Onsemi

NPN

SINGLE

NO

270 MHz

.45 W

.1 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

400

150 Cel

SILICON

45 V

TIN

BOTTOM

O-PBCY-T3

Not Qualified

LOW NOISE

TO-92

e3

ZTX690B

Diodes Incorporated

NPN

SINGLE

NO

150 MHz

1 W

2 A

PLASTIC/EPOXY

SWITCHING

WIRE

RECTANGULAR

1

3

IN-LINE

Other Transistors

150

200 Cel

SILICON

45 V

MATTE TIN

SINGLE

R-PSIP-W3

Not Qualified

e3

30

260

2SA970

Toshiba

PNP

SINGLE

NO

100 MHz

.3 W

.1 A

PLASTIC/EPOXY

AMPLIFIER

.3 V

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

200

125 Cel

SILICON

120 V

Tin/Lead (Sn/Pb)

BOTTOM

O-PBCY-T3

Not Qualified

LOW NOISE

TO-92

e0

BC108BPBFREE

Central Semiconductor

NPN

SINGLE

NO

150 MHz

.2 A

METAL

AMPLIFIER

WIRE

ROUND

1

3

CYLINDRICAL

200

SILICON

25 V

BOTTOM

O-MBCY-W3

TO-18

NOT SPECIFIED

NOT SPECIFIED

BC548BB1G

Taiwan Semiconductor

NPN

SINGLE

NO

.5 W

.1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

.5 W

200

150 Cel

SILICON

30 V

-65 Cel

MATTE TIN

BOTTOM

O-PBCY-T3

1

TO-92

e3

10

260

BC640TA

Onsemi

PNP

SINGLE

NO

100 MHz

.8 W

1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

25

150 Cel

SILICON

80 V

MATTE TIN

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e3

BC640T&A

Continental Device India

PNP

SINGLE

NO

100 MHz

.8 W

1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

25

150 Cel

SILICON

80 V

MATTE TIN

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e3

BSX46-16

NXP Semiconductors

NPN

SINGLE

NO

50 MHz

1 A

METAL

SWITCHING

1 V

WIRE

ROUND

1

3

CYLINDRICAL

6.25 W

35

200 Cel

20 pF

SILICON

60 V

200 ns

850 ns

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

TO-39

JAN2N2222AL

Microchip Technology

NPN

SINGLE

NO

.8 A

METAL

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

30

200 Cel

SILICON

50 V

35 ns

300 ns

TIN LEAD

BOTTOM

O-MBCY-W3

COLLECTOR

Qualified

TO-206AA

e0

MIL-19500/255

JANS2N3439

Microchip Technology

NPN

SINGLE

NO

1 A

METAL

WIRE

ROUND

1

3

CYLINDRICAL

40

SILICON

350 V

1000 ns

10000 ns

TIN LEAD

BOTTOM

O-MBCY-W3

COLLECTOR

Qualified

TO-5

e0

MIL-19500/368F

JANTX2N5416S

Microchip Technology

PNP

SINGLE

NO

1 A

METAL

SWITCHING

WIRE

ROUND

1

4

CYLINDRICAL

30

200 Cel

SILICON

300 V

1000 ns

-65 Cel

10000 ns

TIN LEAD

BOTTOM

O-MBCY-W4

COLLECTOR

Qualified

TO-5

e0

MIL-19500/485H

MPSA13RLRPG

Onsemi

NPN

DARLINGTON

NO

125 MHz

.5 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

10000

150 Cel

SILICON

30 V

TIN SILVER COPPER

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e1

260

2SC1815-GRTIN/LEAD

Central Semiconductor

NPN

SINGLE

NO

80 MHz

.4 W

.15 A

PLASTIC/EPOXY

AMPLIFIER

1 V

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

.4 W

200

125 Cel

SILICON

50 V

-55 Cel

TIN LEAD

BOTTOM

O-PBCY-T3

TO-92

e0

BC32716BU

Onsemi

PNP

SINGLE

NO

100 MHz

.625 W

.8 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

60

150 Cel

SILICON

45 V

TIN

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e3

BC556BBK

Diotec Semiconductor Ag

PNP

SINGLE

NO

150 MHz

.1 A

PLASTIC/EPOXY

WIRE

ROUND

1

3

CYLINDRICAL

200

150 Cel

SILICON

65 V

BOTTOM

O-PBCY-W3

Not Qualified

TO-92

NOT SPECIFIED

NOT SPECIFIED

JANTX2N2920

Microchip Technology

NPN

SEPARATE, 2 ELEMENTS

NO

60 MHz

.3 W

.03 A

METAL

WIRE

ROUND

2

6

CYLINDRICAL

Other Transistors

300

200 Cel

SILICON

60 V

-65 Cel

TIN LEAD

BOTTOM

O-MBCY-W6

Qualified

e0

MIL-19500/355J

MPSA56RLRAG

Onsemi

PNP

SINGLE

NO

50 MHz

.625 W

.5 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

100

150 Cel

SILICON

80 V

TIN SILVER COPPER

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e1

260

JANTX2N5416

Microchip Technology

PNP

SINGLE

NO

1 A

METAL

SWITCHING

WIRE

ROUND

1

4

CYLINDRICAL

30

200 Cel

SILICON

300 V

1000 ns

-65 Cel

10000 ns

Tin/Lead (Sn/Pb)

BOTTOM

O-MBCY-W4

COLLECTOR

Qualified

TO-5

e0

MILITARY STANDARD (USA)

ZTX550Q

Diodes Incorporated

PNP

SINGLE

NO

150 MHz

1 A

PLASTIC/EPOXY

SWITCHING

WIRE

RECTANGULAR

1

3

IN-LINE

15

SILICON

45 V

Matte Tin (Sn)

SINGLE

R-PSIP-W3

Not Qualified

e3

NOT SPECIFIED

NOT SPECIFIED

2N2920AHR

STMicroelectronics

NPN

SEPARATE, 2 ELEMENTS

NO

60 MHz

1 W

.03 A

METAL

WIRE

ROUND

2

6

CYLINDRICAL

Other Transistors

300

200 Cel

SILICON

60 V

BOTTOM

O-MBCY-W6

Not Qualified

TO-77

NOT SPECIFIED

NOT SPECIFIED

BC556-B

Infineon Technologies

PNP

SINGLE

NO

250 MHz

.625 W

.1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

200

150 Cel

SILICON

BOTTOM

O-PBCY-T3

Not Qualified

BC639-16D74Z

National Semiconductor

NPN

SINGLE

NO

PLASTIC/EPOXY

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

25

SILICON

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

BC63916_D74Z

Fairchild Semiconductor

NPN

SINGLE

NO

100 MHz

1 W

1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

25

150 Cel

SILICON

80 V

TIN SILVER COPPER

BOTTOM

O-PBCY-T3

TO-92

e1

BC63916-D74Z

Onsemi

NPN

SINGLE

NO

100 MHz

1 W

1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

25

150 Cel

SILICON

80 V

MATTE TIN

BOTTOM

O-PBCY-T3

TO-92

e3

JANTX2N1893S

Microchip Technology

NPN

SINGLE

NO

.5 A

METAL

WIRE

ROUND

1

3

CYLINDRICAL

40

200 Cel

SILICON

80 V

TIN LEAD

BOTTOM

O-MBCY-W3

COLLECTOR

Qualified

TO-5

e0

MIL-19500/182F

2N4125

Texas Instruments

PNP

SINGLE

NO

200 MHz

.35 W

.2 A

PLASTIC/EPOXY

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

25

150 Cel

SILICON

30 V

26 ns

82 ns

BOTTOM

O-PBCY-W3

Not Qualified

TO-92

NOT SPECIFIED

NOT SPECIFIED

2N4403

Texas Instruments

PNP

SINGLE

NO

200 MHz

.35 W

.6 A

PLASTIC/EPOXY

AMPLIFIER

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

60

150 Cel

SILICON

40 V

35 ns

255 ns

BOTTOM

O-PBCY-W3

Not Qualified

TO-92

NOT SPECIFIED

NOT SPECIFIED

2N5401YBU

Onsemi

PNP

SINGLE

NO

100 MHz

.6 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

50

150 Cel

SILICON

150 V

TIN

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e3

BC558BTA

Onsemi

PNP

SINGLE

NO

150 MHz

.625 W

.1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

200

150 Cel

SILICON

30 V

MATTE TIN

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e3

BC558BT&A

Continental Device India

PNP

SINGLE

NO

150 MHz

.625 W

.1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

200

150 Cel

SILICON

30 V

MATTE TIN

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e3

PN2907A

Microchip Technology

PNP

SINGLE

NO

200 MHz

.625 W

.8 A

PLASTIC/EPOXY

AMPLIFIER

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

50

150 Cel

SILICON

60 V

50 ns

110 ns

TIN LEAD

BOTTOM

O-PBCY-W3

Not Qualified

TO-92

e0

ZTX453STZ

Diodes Incorporated

NPN

SINGLE

NO

150 MHz

1 A

PLASTIC/EPOXY

SWITCHING

WIRE

RECTANGULAR

1

3

IN-LINE

10

SILICON

100 V

MATTE TIN

SINGLE

R-PSIP-W3

Not Qualified

e3

30

260

BFX34

NXP Semiconductors

NPN

SINGLE

NO

100 MHz

2 A

METAL

SWITCHING

1 V

WIRE

ROUND

1

3

CYLINDRICAL

5 W

40

150 Cel

SILICON

60 V

600 ns

-65 Cel

1200 ns

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

TO-39

FJN4303RTA

Onsemi

PNP

SINGLE WITH BUILT-IN RESISTOR

NO

200 MHz

.3 W

.1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

BIP General Purpose Small Signal

56

150 Cel

SILICON

50 V

MATTE TIN

BOTTOM

O-PBCY-T3

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 1

TO-92

e3

JANTX2N3866A

Fairchild Semiconductor

NPN

SINGLE

NO

.4 A

METAL

WIRE

ROUND

1

3

CYLINDRICAL

25

SILICON

30 V

BOTTOM

O-MBCY-W3

Not Qualified

TO-39

MIL

KSA992FBU

Onsemi

PNP

SINGLE

NO

100 MHz

.5 W

.05 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

300

150 Cel

SILICON

120 V

TIN

BOTTOM

O-PBCY-T3

Not Qualified

LOW NOISE

TO-92

e3

2N3859A

Vishay Intertechnology

NPN

SINGLE

NO

90 MHz

PLASTIC/EPOXY

WIRE

ROUND

1

3

CYLINDRICAL

100

SILICON

BOTTOM

O-PBCY-W3

Not Qualified

TO-92

Small Signal Bipolar Junction Transistors (BJT)

Small Signal Bipolar Junction Transistors (BJT) are electronic devices used in low-power applications to amplify and switch small signals. They are commonly used in applications such as audio amplifiers, signal processing, and low-power digital circuits.

Small Signal BJTs are designed to handle low-power levels and operate at low to medium frequencies, typically in the range of a few Hz to several MHz. They have a high gain and low noise figure, making them suitable for small signal amplification.

The Small Signal BJT consists of an emitter, base, and collector region, and works by controlling the flow of majority charge carriers (electrons or holes) between the emitter and collector through the base region. When a voltage is applied to the base-emitter junction, a small current flows through the base, allowing a larger current to flow from the emitter to the collector.

Proper use of Small Signal BJTs is important to ensure optimal performance, reliability, and compatibility with other components in the circuit. Small Signal BJTs are often used in conjunction with other components, such as capacitors and resistors, to form complete low-power electronic circuits.B395