Small Signal Bipolar Junction Transistors (BJT)

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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

BC859BLT1

Onsemi

PNP

SINGLE

YES

100 MHz

.3 W

.1 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

220

150 Cel

SILICON

30 V

Tin/Lead (Sn/Pb)

DUAL

R-PDSO-G3

1

Not Qualified

TO-236AB

e0

30

235

BCX71JLT1

Onsemi

PNP

SINGLE

YES

.35 W

.1 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

100

150 Cel

SILICON

45 V

150 ns

800 ns

Tin/Lead (Sn/Pb)

DUAL

R-PDSO-G3

1

Not Qualified

TO-236AB

e0

30

235

DTA115EET1

Onsemi

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

.3 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

80

SILICON

50 V

TIN LEAD

DUAL

R-PDSO-G3

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 1

e0

235

DTC115EET1

Onsemi

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

.3 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signals

80

SILICON

50 V

TIN LEAD

DUAL

R-PDSO-G3

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 1

e0

235

DTC144TT1

Onsemi

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

.338 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

160

SILICON

50 V

TIN LEAD

DUAL

R-PDSO-G3

Not Qualified

BUILT IN BIAS RESISTOR

e0

235

DTC144WET1

Onsemi

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

.3 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signals

80

SILICON

50 V

TIN LEAD

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 2.1

e0

30

235

UMA4NT1

Onsemi

PNP

COMMON EMITTER, 2 ELEMENTS WITH BUILT-IN RESISTOR

YES

.15 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

2

5

SMALL OUTLINE

BIP General Purpose Small Signal

160

SILICON

50 V

Tin/Lead (Sn/Pb)

DUAL

R-PDSO-G5

1

Not Qualified

BUILT IN BIAS RESISTOR

e0

30

235

UMC5NT1

Onsemi

NPN AND PNP

CASCADED, 2 ELEMENTS WITH BUILT-IN RESISTOR

YES

.15 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

2

5

SMALL OUTLINE

BIP General Purpose Small Signal

80

SILICON

50 V

TIN LEAD

DUAL

R-PDSO-G5

1

Not Qualified

BUILT IN BIAS RESISTOR RATIO IS 1

e0

MMBT4126LT1

Onsemi

PNP

SINGLE

YES

250 MHz

.225 W

.2 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

60

150 Cel

SILICON

25 V

Tin/Lead (Sn/Pb)

DUAL

R-PDSO-G3

1

Not Qualified

TO-236AB

e0

30

235

PN2222ARLRA

Onsemi

NPN

SINGLE

NO

300 MHz

.625 W

.6 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

75

150 Cel

SILICON

40 V

35 ns

285 ns

TIN LEAD

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e0

235

PN2222ARLRP

Onsemi

NPN

SINGLE

NO

300 MHz

.625 W

.6 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

75

150 Cel

SILICON

40 V

35 ns

285 ns

TIN LEAD

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e0

235

MUN5237T1

Onsemi

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

.31 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

80

SILICON

50 V

Tin/Lead (Sn/Pb)

DUAL

R-PDSO-G3

1

Not Qualified

BUILT IN BIAS RESISTOR RATIO 0.47

e0

30

235

BCX56-10R1

Onsemi

NPN

SINGLE

YES

130 MHz

1.56 W

1 A

PLASTIC/EPOXY

AMPLIFIER

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

25

150 Cel

SILICON

80 V

TIN LEAD

SINGLE

R-PSSO-F3

1

Not Qualified

e0

MMJT350T1

Onsemi

PNP

SINGLE

YES

2.75 W

.5 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

4

SMALL OUTLINE

Other Transistors

20

150 Cel

SILICON

300 V

TIN LEAD

DUAL

R-PDSO-G4

3

COLLECTOR

Not Qualified

TO-261AA

e0

235

STX13003

STMicroelectronics

NPN

SINGLE

NO

1.5 W

1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

5

150 Cel

SILICON

400 V

4700 ns

MATTE TIN

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e3

2SA1038STPR

ROHM

PNP

SINGLE

NO

140 MHz

.3 W

.05 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

RECTANGULAR

1

3

IN-LINE

Other Transistors

180

150 Cel

SILICON

120 V

TIN SILVER COPPER

SINGLE

R-PSIP-T3

Not Qualified

e1

2SA1038STPS

ROHM

PNP

SINGLE

NO

140 MHz

.3 W

.05 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

RECTANGULAR

1

3

IN-LINE

Other Transistors

270

150 Cel

SILICON

120 V

TIN SILVER COPPER

SINGLE

R-PSIP-T3

Not Qualified

e1

2DA1774Q-7

Diodes Incorporated

PNP

SINGLE

YES

140 MHz

.15 W

.15 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

120

150 Cel

SILICON

50 V

TIN LEAD

DUAL

R-PDSO-G3

Not Qualified

e0

2DA1774R-7

Diodes Incorporated

PNP

SINGLE

YES

140 MHz

.15 W

.15 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

180

150 Cel

SILICON

50 V

TIN LEAD

DUAL

R-PDSO-G3

Not Qualified

e0

2DA1774S-7

Diodes Incorporated

PNP

SINGLE

YES

140 MHz

.15 W

.15 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

270

150 Cel

SILICON

50 V

TIN LEAD

DUAL

R-PDSO-G3

Not Qualified

e0

BC847AT-7

Diodes Incorporated

NPN

SINGLE

YES

100 MHz

.15 W

.1 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

110

150 Cel

SILICON

45 V

TIN LEAD

DUAL

R-PDSO-G3

Not Qualified

e0

BC847BT-7

Diodes Incorporated

NPN

SINGLE

YES

100 MHz

.15 W

.1 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

200

150 Cel

SILICON

45 V

TIN LEAD

DUAL

R-PDSO-G3

Not Qualified

e0

BC857AT-7

Diodes Incorporated

PNP

SINGLE

YES

100 MHz

.15 W

.1 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

125

150 Cel

SILICON

45 V

TIN LEAD

DUAL

R-PDSO-G3

Not Qualified

e0

BC857BT-7

Diodes Incorporated

PNP

SINGLE

YES

100 MHz

.15 W

.1 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

220

150 Cel

SILICON

45 V

TIN LEAD

DUAL

R-PDSO-G3

Not Qualified

e0

MMBT2222AT-7

Diodes Incorporated

NPN

SINGLE

YES

300 MHz

.15 W

.6 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

40

150 Cel

SILICON

40 V

35 ns

285 ns

TIN LEAD

DUAL

R-PDSO-G3

1

Not Qualified

e0

MMBT2907AT-7

Diodes Incorporated

PNP

SINGLE

YES

200 MHz

.6 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

50

SILICON

60 V

45 ns

100 ns

TIN LEAD

DUAL

R-PDSO-G3

Not Qualified

e0

MMBT3904T-7

Diodes Incorporated

NPN

SINGLE

YES

300 MHz

.15 W

.2 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

30

150 Cel

SILICON

40 V

70 ns

250 ns

TIN LEAD

DUAL

R-PDSO-G3

Not Qualified

e0

MMBT4401T-7

Diodes Incorporated

NPN

SINGLE

YES

250 MHz

.15 W

.6 A

PLASTIC/EPOXY

SWITCHING

.75 V

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

.15 W

40

150 Cel

SILICON

40 V

35 ns

-55 Cel

255 ns

TIN LEAD

DUAL

R-PDSO-G3

Not Qualified

e0

MMBT4403T-7

Diodes Incorporated

PNP

SINGLE

YES

200 MHz

.15 W

.6 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

20

150 Cel

SILICON

40 V

35 ns

255 ns

TIN LEAD

DUAL

R-PDSO-G3

Not Qualified

e0

NSTB60BDW1T1

Onsemi

NPN AND PNP

SEPARATE, 2 ELEMENTS WITH BUILT-IN RESISTOR

YES

140 MHz

.25 W

.15 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

2

6

SMALL OUTLINE

Other Transistors

80

SILICON

50 V

TIN LEAD

DUAL

R-PDSO-G6

1

Not Qualified

BUILT IN BIAS RESISTOR RATIO IS 2.13

e0

30

235

BC488BRL1

Onsemi

PNP

SINGLE

NO

150 MHz

1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

15

SILICON

60 V

TIN LEAD

BOTTOM

O-PBCY-T3

Not Qualified

EUROPEAN PART NUMBER

TO-92

e0

235

BC639-16ZL1

Onsemi

NPN

SINGLE

NO

200 MHz

.8 W

1 A

PLASTIC/EPOXY

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

100

150 Cel

SILICON

80 V

TIN LEAD

BOTTOM

O-PBCY-T3

Not Qualified

EUROPEAN PART NUMBER

TO-92

e0

235

MSC3930-BT1

Onsemi

NPN

SINGLE

YES

150 MHz

.03 A

PLASTIC/EPOXY

AMPLIFIER

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

70

SILICON

20 V

Tin/Lead (Sn/Pb)

DUAL

R-PDSO-G3

1

Not Qualified

e0

NOT SPECIFIED

235

HN1B01FDW1T1

Onsemi

NPN AND PNP

SEPARATE, 2 ELEMENTS

YES

.38 W

.2 A

PLASTIC/EPOXY

AMPLIFIER

GULL WING

RECTANGULAR

2

6

SMALL OUTLINE

BIP General Purpose Small Signal

200

150 Cel

SILICON

50 V

Tin/Lead (Sn/Pb)

DUAL

R-PDSO-G6

1

Not Qualified

e0

30

235

NSL12AWT1

Onsemi

PNP

SINGLE

YES

100 MHz

.65 W

2 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

6

SMALL OUTLINE

Other Transistors

100

150 Cel

SILICON

12 V

Tin/Lead (Sn/Pb)

DUAL

R-PDSO-G6

1

Not Qualified

e0

30

235

61095

Micropac Industries

PNP

SINGLE

NO

.4 W

.6 A

METAL

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

100

200 Cel

SILICON

60 V

45 ns

300 ns

BOTTOM

O-MBCY-W3

Not Qualified

TO-18

MMBT4401WT1

Onsemi

NPN

SINGLE

YES

250 MHz

.15 W

.6 A

PLASTIC/EPOXY

SWITCHING

.75 V

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

.15 W

40

150 Cel

6.5 pF

SILICON

40 V

35 ns

-55 Cel

255 ns

Tin/Lead (Sn/Pb)

DUAL

R-PDSO-G3

1

Not Qualified

e0

30

235

MMBTA06WT1

Onsemi

NPN

SINGLE

YES

100 MHz

.15 W

.5 A

PLASTIC/EPOXY

AMPLIFIER

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

100

150 Cel

SILICON

80 V

Tin/Lead (Sn/Pb)

DUAL

R-PDSO-G3

1

Not Qualified

e0

30

235

MMBTA56WT1

Onsemi

PNP

SINGLE

YES

50 MHz

.15 W

.5 A

PLASTIC/EPOXY

AMPLIFIER

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

100

150 Cel

SILICON

80 V

TIN LEAD

DUAL

R-PDSO-G3

Not Qualified

e0

235

MMDT3904-7

Diodes Incorporated

NPN

SEPARATE, 2 ELEMENTS

YES

300 MHz

.15 W

.2 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

2

6

SMALL OUTLINE

Other Transistors

30

150 Cel

SILICON

40 V

70 ns

250 ns

TIN LEAD

DUAL

R-PDSO-G6

Not Qualified

e0

MMDT3906-7

Diodes Incorporated

PNP

SEPARATE, 2 ELEMENTS

YES

250 MHz

.2 W

.2 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

2

6

SMALL OUTLINE

Other Transistors

30

150 Cel

SILICON

40 V

70 ns

300 ns

TIN LEAD

DUAL

R-PDSO-G6

Not Qualified

e0

STX715

STMicroelectronics

NPN

SINGLE

NO

50 MHz

.9 W

1.5 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

40

150 Cel

SILICON

80 V

MATTE TIN

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e3

2DC4617R-7

Diodes Incorporated

NPN

SINGLE

YES

180 MHz

.15 W

.15 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

180

150 Cel

SILICON

50 V

TIN LEAD

DUAL

R-PDSO-G3

Not Qualified

e0

2DC4617S-7

Diodes Incorporated

NPN

SINGLE

YES

180 MHz

.15 W

.15 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

270

150 Cel

SILICON

50 V

TIN LEAD

DUAL

R-PDSO-G3

Not Qualified

e0

2N4125BU

Fairchild Semiconductor

PNP

SINGLE

NO

.35 W

.2 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

25

150 Cel

SILICON

30 V

MATTE TIN

BOTTOM

O-PBCY-T3

1

Not Qualified

TO-92

e3

40

260

2N4125TA

Fairchild Semiconductor

PNP

SINGLE

NO

.35 W

.2 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

25

150 Cel

SILICON

30 V

MATTE TIN

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e3

2N5089TA

Fairchild Semiconductor

NPN

SINGLE

NO

50 MHz

.35 W

.1 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

450

150 Cel

SILICON

25 V

MATTE TIN

BOTTOM

O-PBCY-T3

Not Qualified

LOW NOISE

TO-92

e3

KSA733CLTA

Fairchild Semiconductor

PNP

SINGLE

NO

180 MHz

.25 W

.15 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

350

150 Cel

SILICON

50 V

MATTE TIN

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e3

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