.2 A Small Signal Bipolar Junction Transistors (BJT) 2,050

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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

PMBT3906

NXP Semiconductors

PNP

SINGLE

YES

250 MHz

.3 W

.2 A

PLASTIC/EPOXY

SWITCHING

.65 V

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

30

150 Cel

4.5 pF

SILICON

40 V

70 ns

300 ns

Tin (Sn)

DUAL

R-PDSO-G3

1

Not Qualified

TO-236AB

e3

30

260

PMBT3906YS,115

NXP Semiconductors

PNP

SEPARATE, 2 ELEMENTS

YES

250 MHz

.35 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

DUAL

R-PDSO-G6

1

Not Qualified

e3

30

260

2PB709BSL,215

Nexperia

PNP

SINGLE

YES

200 MHz

.2 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

290

SILICON

50 V

TIN

DUAL

R-PDSO-G3

1

TO-236AB

e3

30

260

AEC-Q101

CMPT3906TR

Central Semiconductor

PNP

SINGLE

YES

250 MHz

.35 W

.2 A

PLASTIC/EPOXY

SWITCHING

.4 V

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

30

150 Cel

4.5 pF

SILICON

40 V

70 ns

300 ns

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

e3

10

260

LMBT3906DW1T1G

Leshan Radio

PNP

YES

250 MHz

.15 W

.2 A

Other Transistors

100

150 Cel

PMBT3906/DG

Nexperia

PNP

SINGLE

YES

250 MHz

.2 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

30

150 Cel

SILICON

40 V

70 ns

300 ns

TIN

DUAL

R-PDSO-G3

1

TO-236AB

e3

30

260

SMBT3904E6327XT

Infineon Technologies

NPN

SINGLE

YES

300 MHz

.2 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

70

SILICON

40 V

70 ns

250 ns

DUAL

R-PDSO-G3

Not Qualified

NOT SPECIFIED

NOT SPECIFIED

2N3903/D26Z

National Semiconductor

NPN

SINGLE

NO

250 MHz

.2 A

PLASTIC/EPOXY

SWITCHING

.2 V

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

50

SILICON

40 V

70 ns

225 ns

BOTTOM

O-PBCY-T3

Not Qualified

HIGH SPEED SATURATED SWITCHING

TO-92

2N3903D26Z

Fairchild Semiconductor

NPN

SINGLE

NO

250 MHz

.35 W

.2 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

15

150 Cel

SILICON

40 V

70 ns

225 ns

Matte Tin (Sn)

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e3

BC857S-TP-HF

Micro Commercial Components

PNP

SEPARATE, 2 ELEMENTS

YES

200 MHz

.3 W

.2 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

2

6

SMALL OUTLINE

Other Transistors

125

150 Cel

SILICON

45 V

DUAL

R-PDSO-G6

NOT SPECIFIED

NOT SPECIFIED

DMMT5551-7-F

Diodes Incorporated

NPN

SEPARATE, 2 ELEMENTS

YES

100 MHz

.3 W

.2 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

2

6

SMALL OUTLINE

Other Transistors

30

150 Cel

SILICON

160 V

MATTE TIN

DUAL

R-PDSO-G6

1

Not Qualified

e3

30

260

MMBT5401/D87Z

National Semiconductor

PNP

SINGLE

YES

100 MHz

.2 A

PLASTIC/EPOXY

SWITCHING

.5 V

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

.35 W

50

150 Cel

6 pF

SILICON

150 V

DUAL

R-PDSO-G3

Not Qualified

TO-236AB

CMPT3906GTR

Central Semiconductor

PNP

SINGLE

YES

250 MHz

.35 W

.2 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

30

150 Cel

SILICON

40 V

70 ns

300 ns

Tin/Lead (Sn80Pb20)

DUAL

R-PDSO-G3

Not Qualified

e0

DMMT3904W

Panjit International

NPN

SEPARATE, 2 ELEMENTS

YES

300 MHz

.2 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

2

6

SMALL OUTLINE

30

SILICON

40 V

70 ns

250 ns

DUAL

R-PDSO-G6

NOT SPECIFIED

NOT SPECIFIED

FFB5551

Onsemi

NPN

SEPARATE, 2 ELEMENTS

YES

100 MHz

.2 W

.2 A

PLASTIC/EPOXY

AMPLIFIER

GULL WING

RECTANGULAR

2

6

SMALL OUTLINE

Other Transistors

30

150 Cel

SILICON

160 V

MATTE TIN

DUAL

R-PDSO-G6

1

Not Qualified

e3

30

260

HN1B01FDW1T1G

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

MATTE TIN

DUAL

R-PDSO-G6

1

Not Qualified

e3

30

260

MMBT3904T-TP

Micro Commercial Components

NPN

SINGLE

YES

300 MHz

.2 A

PLASTIC/EPOXY

AMPLIFIER

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

100

150 Cel

SILICON

40 V

70 ns

250 ns

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

e3

10

260

MMBT3904WT1

Onsemi

NPN

SINGLE

YES

300 MHz

.15 W

.2 A

PLASTIC/EPOXY

AMPLIFIER

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

1

Not Qualified

e0

235

ZTX558STZ

Diodes Incorporated

PNP

SINGLE

NO

50 MHz

.2 A

PLASTIC/EPOXY

SWITCHING

WIRE

RECTANGULAR

1

3

IN-LINE

15

SILICON

400 V

MATTE TIN

SINGLE

R-PSIP-W3

Not Qualified

e3

2N3906RLRMG

Onsemi

PNP

SINGLE

NO

250 MHz

1.5 W

.2 A

PLASTIC/EPOXY

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

30

150 Cel

SILICON

40 V

70 ns

300 ns

TIN SILVER COPPER

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e1

260

2PD601BSL,215

Nexperia

NPN

SINGLE

YES

250 MHz

.2 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

290

SILICON

50 V

TIN

DUAL

R-PDSO-G3

1

TO-236AB

e3

30

260

AEC-Q101

2SC3554-T1-AZ

Renesas Electronics

NPN

SINGLE

YES

50 MHz

.2 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

60

SILICON

300 V

SINGLE

R-PSSO-F3

COLLECTOR

NOT SPECIFIED

NOT SPECIFIED

BCY59-IX

Motorola

NPN

SINGLE

NO

200 MHz

.2 A

METAL

SWITCHING

.7 V

WIRE

ROUND

1

3

CYLINDRICAL

1 W

250

200 Cel

6 pF

SILICON

45 V

150 ns

800 ns

BOTTOM

O-MBCY-W3

Not Qualified

TO-206AA

NOT SPECIFIED

NOT SPECIFIED

BCY59-VIII

Motorola

NPN

SINGLE

NO

200 MHz

.2 A

METAL

SWITCHING

.7 V

WIRE

ROUND

1

3

CYLINDRICAL

1 W

180

200 Cel

6 pF

SILICON

45 V

150 ns

800 ns

BOTTOM

O-MBCY-W3

Not Qualified

TO-206AA

NOT SPECIFIED

NOT SPECIFIED

BCY59IX

STMicroelectronics

NPN

SINGLE

NO

100 MHz

.6 W

.2 A

METAL

AMPLIFIER

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

60

175 Cel

SILICON

45 V

150 ns

800 ns

BOTTOM

O-MBCY-W3

Not Qualified

LOW NOISE

TO-18

NOT SPECIFIED

250

BCY59VIII

STMicroelectronics

NPN

SINGLE

NO

100 MHz

.6 W

.2 A

METAL

AMPLIFIER

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

45

175 Cel

SILICON

45 V

150 ns

800 ns

MATTE TIN

BOTTOM

O-MBCY-W3

Not Qualified

LOW NOISE

TO-18

e3

BFN24E6327HTSA1

Infineon Technologies

NPN

SINGLE

YES

70 MHz

.2 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

40

SILICON

250 V

TIN

DUAL

R-PDSO-G3

1

e3

CMPT3906BK

Central Semiconductor

PNP

SINGLE

YES

250 MHz

.35 W

.2 A

PLASTIC/EPOXY

SWITCHING

.4 V

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

30

150 Cel

4.5 pF

SILICON

40 V

70 ns

300 ns

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

e3

10

260

CMPT3906E

Central Semiconductor

PNP

SINGLE

YES

300 MHz

.35 W

.2 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

70

150 Cel

SILICON

40 V

70 ns

250 ns

Tin/Lead (Sn/Pb)

DUAL

R-PDSO-G3

Not Qualified

e0

NOT SPECIFIED

NOT SPECIFIED

CMPT3906G

Central Semiconductor

PNP

SINGLE

YES

250 MHz

.2 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

30

150 Cel

SILICON

40 V

70 ns

300 ns

TIN LEAD

DUAL

R-PDSO-G3

Not Qualified

e0

DMMT3904WQ-7-F

Diodes Incorporated

NPN

SEPARATE, 2 ELEMENTS

YES

300 MHz

.2 A

PLASTIC/EPOXY

AMPLIFIER

GULL WING

RECTANGULAR

2

6

SMALL OUTLINE

30

SILICON

40 V

70 ns

250 ns

MATTE TIN

DUAL

R-PDSO-G6

1

HIGH RELIABILITY

e3

30

260

AEC-Q101

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

MMBT3904K

Fairchild Semiconductor

NPN

SINGLE

YES

300 MHz

.35 W

.2 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

30

150 Cel

SILICON

40 V

70 ns

250 ns

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

e3

30

260

MMDT3946-TP

Micro Commercial Components

NPN AND PNP

SEPARATE, 2 ELEMENTS

YES

300 MHz

.2 W

.2 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

2

6

SMALL OUTLINE

BIP General Purpose Small Signal

100

150 Cel

SILICON

40 V

70 ns

250 ns

MATTE TIN

DUAL

R-PDSO-G6

1

Not Qualified

e3

10

260

MMDT5451Q-7

Diodes Incorporated

NPN AND PNP

SEPARATE, 2 ELEMENTS

YES

100 MHz

.32 W

.2 A

PLASTIC/EPOXY

SWITCHING

.2 V

GULL WING

RECTANGULAR

2

6

SMALL OUTLINE

30

150 Cel

6 pF

SILICON

160 V

-55 Cel

DUAL

R-PDSO-G6

AEC-Q101; IATF 16949

MMPQ3906

Onsemi

PNP

SEPARATE, 4 ELEMENTS

YES

250 MHz

.2 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

4

16

SMALL OUTLINE

Other Transistors

75

150 Cel

SILICON

40 V

MATTE TIN

DUAL

R-PDSO-G16

3

Not Qualified

e3

30

260

MMST5551-7-F

Diodes Incorporated

NPN

SINGLE

YES

100 MHz

.2 W

.2 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

30

150 Cel

SILICON

160 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

e3

30

260

MMSTA42-7-F

Diodes Incorporated

NPN

SINGLE

YES

50 MHz

.2 W

.2 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

40

150 Cel

SILICON

300 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

e3

30

260

MPS3827

Onsemi

NPN

SINGLE

NO

200 MHz

.31 W

.2 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

100

150 Cel

SILICON

45 V

TIN LEAD

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e0

PMBT3946YPN,115

NXP Semiconductors

NPN AND PNP

SINGLE

YES

300 MHz

.23 W

.2 A

1

BIP General Purpose Small Signal

100

150 Cel

TIN

1

e3

30

260

2N3906RLRPG

Onsemi

PNP

SINGLE

NO

250 MHz

.35 W

.2 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

30

150 Cel

SILICON

40 V

70 ns

300 ns

TIN SILVER COPPER

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e1

260

2N3906ZL1

Onsemi

PNP

SINGLE

NO

250 MHz

.35 W

.2 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

30

150 Cel

SILICON

40 V

70 ns

300 ns

TIN LEAD

BOTTOM

O-PBCY-T3

Not Qualified

EUROPEAN PART NUMBER

TO-92

e0

235

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

2N4125RLRM

Onsemi

PNP

SINGLE

NO

200 MHz

.2 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

25

SILICON

30 V

TIN LEAD

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e0

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

2N4125TF

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

2N4125TFR

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

BCX70KT116

ROHM

NPN

SINGLE

YES

125 MHz

.2 W

.2 A

PLASTIC/EPOXY

AMPLIFIER

.3 V

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

380

150 Cel

4.5 pF

SILICON

45 V

TIN SILVER COPPER

DUAL

R-PDSO-G3

1

Not Qualified

LOW NOISE

e1

10

260

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