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

2N1047

Texas Instruments

NPN

SINGLE

NO

1 W

.5 A

METAL

SWITCHING

WIRE

ROUND

1

3

POST/STUD MOUNT

Other Transistors

12

200 Cel

SILICON

BOTTOM

O-MBPM-W3

COLLECTOR

Not Qualified

A8T3702

Texas Instruments

PNP

SINGLE

NO

100 MHz

.625 W

.2 A

PLASTIC/EPOXY

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

60

150 Cel

SILICON

25 V

BOTTOM

O-PBCY-W3

Not Qualified

TO-92

NOT SPECIFIED

NOT SPECIFIED

A5T5172

Texas Instruments

NPN

SINGLE

NO

.625 W

.1 A

PLASTIC/EPOXY

AMPLIFIER

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

100

150 Cel

SILICON

25 V

BOTTOM

O-PBCY-W3

Not Qualified

NOT SPECIFIED

NOT SPECIFIED

2N998

Texas Instruments

NPN

DARLINGTON

NO

1.8 W

.5 A

METAL

WIRE

ROUND

1

4

CYLINDRICAL

Other Transistors

800

200 Cel

SILICON

60 V

BOTTOM

O-MBCY-W4

COLLECTOR

Not Qualified

TO-72

NOT SPECIFIED

NOT SPECIFIED

2N5525

Texas Instruments

NPN

DARLINGTON

NO

200 MHz

.36 W

.2 A

PLASTIC/EPOXY

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

5000

150 Cel

SILICON

30 V

BOTTOM

O-PBCY-W3

Not Qualified

TO-92

NOT SPECIFIED

NOT SPECIFIED

2N706

Texas Instruments

NPN

SINGLE

NO

200 MHz

1 W

.2 A

METAL

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

20

100 Cel

SILICON

20 V

BOTTOM

O-MBCY-W3

Not Qualified

TO-18

NOT SPECIFIED

NOT SPECIFIED

2N5209

Texas Instruments

NPN

SINGLE

NO

30 MHz

.62 W

.05 A

PLASTIC/EPOXY

AMPLIFIER

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

150

150 Cel

SILICON

50 V

BOTTOM

O-PBCY-W3

Not Qualified

LOW NOISE

TO-92

NOT SPECIFIED

NOT SPECIFIED

TIP501

Texas Instruments

NPN

SINGLE

NO

60 MHz

1 W

3 A

METAL

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

25

175 Cel

SILICON

40 V

100 ns

400 ns

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

TO-39

NOT SPECIFIED

NOT SPECIFIED

D2T2904

Texas Instruments

PNP

SEPARATE, 2 ELEMENTS

NO

200 MHz

.4 W

.6 A

METAL

WIRE

ROUND

2

6

CYLINDRICAL

Other Transistors

35

175 Cel

SILICON

40 V

45 ns

100 ns

BOTTOM

O-MBCY-W6

ISOLATED

Not Qualified

TO-78

NOT SPECIFIED

NOT SPECIFIED

A8T3391

Texas Instruments

NPN

SINGLE

NO

.625 W

.1 A

PLASTIC/EPOXY

AMPLIFIER

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

250

150 Cel

SILICON

25 V

BOTTOM

O-PBCY-W3

Not Qualified

TO-92

NOT SPECIFIED

NOT SPECIFIED

2N3251

Texas Instruments

PNP

SINGLE

NO

300 MHz

1.2 W

.2 A

METAL

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

30

175 Cel

SILICON

40 V

70 ns

250 ns

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

TO-18

NOT SPECIFIED

NOT SPECIFIED

2N1038

Texas Instruments

PNP

SINGLE

NO

20 W

3 A

METAL

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

20

100 Cel

GERMANIUM

30 V

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

TO-5

NOT SPECIFIED

NOT SPECIFIED

A5T4409

Texas Instruments

NPN

SINGLE

NO

60 MHz

.625 W

.25 A

PLASTIC/EPOXY

AMPLIFIER

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

60

150 Cel

SILICON

50 V

BOTTOM

O-PBCY-W3

Not Qualified

NOT SPECIFIED

NOT SPECIFIED

JAN2N657

Texas Instruments

NPN

SINGLE

NO

METAL

WIRE

ROUND

1

3

CYLINDRICAL

30

SILICON

100 V

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

TO-5

TIP524

Texas Instruments

PNP

SINGLE

NO

40 MHz

1 W

5 A

METAL

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

5

175 Cel

SILICON

200 V

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

TO-39

NOT SPECIFIED

NOT SPECIFIED

LM394CH

Texas Instruments

NPN

SEPARATE, 2 ELEMENTS WITH BUILT-IN DIODE

NO

.5 W

.02 A

METAL

WIRE

ROUND

2

6

CYLINDRICAL

225

85 Cel

SILICON

20 V

-25 Cel

BOTTOM

O-MBCY-W6

LOW NOISE

TO-5

2N2453

Texas Instruments

NPN

SEPARATE, 2 ELEMENTS

NO

60 MHz

.3 W

.05 A

METAL

AMPLIFIER

WIRE

ROUND

2

6

CYLINDRICAL

Other Transistors

150

200 Cel

SILICON

30 V

BOTTOM

O-MBCY-W6

ISOLATED

Not Qualified

TO-78

NOT SPECIFIED

NOT SPECIFIED

A5T4062

Texas Instruments

PNP

SINGLE

NO

.36 W

.03 A

PLASTIC/EPOXY

AMPLIFIER

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

180

150 Cel

SILICON

30 V

BOTTOM

O-PBCY-W3

Not Qualified

NOT SPECIFIED

NOT SPECIFIED

2N930

Texas Instruments

NPN

SINGLE

NO

30 MHz

1.8 W

.03 A

METAL

AMPLIFIER

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

150

175 Cel

SILICON

45 V

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

LOW NOISE

TO-18

NOT SPECIFIED

NOT SPECIFIED

2N720

Texas Instruments

NPN

SINGLE

NO

50 MHz

.4 W

METAL

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

40

175 Cel

SILICON

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

HIGH RELIABILITY

TO-18

NOT SPECIFIED

NOT SPECIFIED

2N244

Texas Instruments

NPN

SINGLE

NO

.75 W

.06 A

METAL

WIRE

ROUND

1

3

FLANGE MOUNT

Other Transistors

150 Cel

SILICON

BOTTOM

O-MBFM-W3

ISOLATED

Not Qualified

NOT SPECIFIED

NOT SPECIFIED

A5T4061

Texas Instruments

PNP

SINGLE

NO

.36 W

.03 A

PLASTIC/EPOXY

AMPLIFIER

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

90

150 Cel

SILICON

30 V

BOTTOM

O-PBCY-W3

Not Qualified

NOT SPECIFIED

NOT SPECIFIED

A5T4026

Texas Instruments

PNP

SINGLE

NO

100 MHz

.625 W

1 A

PLASTIC/EPOXY

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

30

150 Cel

SILICON

60 V

100 ns

400 ns

BOTTOM

O-PBCY-W3

Not Qualified

NOT SPECIFIED

NOT SPECIFIED

2N1507

Texas Instruments

NPN

SINGLE

NO

50 MHz

.6 W

1 A

METAL

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

100

175 Cel

SILICON

25 V

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

HIGH RELIABILITY

TO-5

NOT SPECIFIED

NOT SPECIFIED

A8T3707

Texas Instruments

NPN

SINGLE

NO

.625 W

.03 A

PLASTIC/EPOXY

AMPLIFIER

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

100

150 Cel

SILICON

30 V

BOTTOM

O-PBCY-W3

Not Qualified

TO-92

NOT SPECIFIED

NOT SPECIFIED

TIS37

Texas Instruments

PNP

SINGLE

NO

80 MHz

.36 W

.05 A

PLASTIC/EPOXY

AMPLIFIER

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

45

175 Cel

SILICON

32 V

BOTTOM

O-PBCY-W3

Not Qualified

EMITTER-FOLLOWER CIRCUITS BUILT IN, LOW NOISE

TO-92

NOT SPECIFIED

NOT SPECIFIED

TIS98

Texas Instruments

NPN

SINGLE

NO

200 MHz

.36 W

.2 A

PLASTIC/EPOXY

AMPLIFIER

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

100

150 Cel

SILICON

60 V

BOTTOM

O-PBCY-W3

Not Qualified

LOW NOISE

NOT SPECIFIED

NOT SPECIFIED

A5T3392

Texas Instruments

NPN

SINGLE

NO

.625 W

.1 A

PLASTIC/EPOXY

AMPLIFIER

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

150

150 Cel

SILICON

25 V

BOTTOM

O-PBCY-W3

Not Qualified

NOT SPECIFIED

NOT SPECIFIED

A5T5401

Texas Instruments

PNP

SINGLE

NO

100 MHz

.625 W

.6 A

PLASTIC/EPOXY

AMPLIFIER

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

50

150 Cel

SILICON

150 V

BOTTOM

O-PBCY-W3

Not Qualified

NOT SPECIFIED

NOT SPECIFIED

A8T404A

Texas Instruments

PNP

SINGLE

NO

4 MHz

.625 W

.15 A

PLASTIC/EPOXY

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

24

150 Cel

SILICON

35 V

180 ns

500 ns

BOTTOM

O-PBCY-W3

Not Qualified

TO-92

NOT SPECIFIED

NOT SPECIFIED

A5T3644

Texas Instruments

PNP

SINGLE

NO

200 MHz

.625 W

.6 A

PLASTIC/EPOXY

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

20

140 Cel

SILICON

45 V

40 ns

100 ns

BOTTOM

O-PBCY-W3

Not Qualified

NOT SPECIFIED

NOT SPECIFIED

2N2552

Texas Instruments

PNP

SINGLE

NO

20 W

3 A

METAL

SWITCHING

WIRE

UNSPECIFIED

1

3

POST/STUD MOUNT

Other Transistors

20

100 Cel

GERMANIUM

30 V

UPPER

X-MUPM-W3

COLLECTOR

Not Qualified

2N3635

Texas Instruments

PNP

SINGLE

NO

200 MHz

1 W

1 A

METAL

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

90

175 Cel

SILICON

140 V

400 ns

600 ns

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

TO-39

NOT SPECIFIED

NOT SPECIFIED

TIP508

Texas Instruments

PNP

SINGLE

NO

50 MHz

1 W

2 A

METAL

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

10

175 Cel

SILICON

150 V

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

TO-39

NOT SPECIFIED

NOT SPECIFIED

2N527

Texas Instruments

PNP

SINGLE

NO

1.5 MHz

.225 W

.5 A

METAL

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

65

100 Cel

SILICON

30 V

BOTTOM

O-MBCY-W3

Not Qualified

TO-5

NOT SPECIFIED

NOT SPECIFIED

BFX81

Texas Instruments

NPN AND PNP

NO

350 MHz

.2 A

BIP General Purpose Small Signal

30

A5T3638A

Texas Instruments

PNP

SINGLE

NO

150 MHz

.625 W

.5 A

PLASTIC/EPOXY

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

20

150 Cel

SILICON

25 V

75 ns

170 ns

BOTTOM

O-PBCY-W3

Not Qualified

NOT SPECIFIED

NOT SPECIFIED

2N5333

Texas Instruments

PNP

SINGLE

NO

30 MHz

1 W

2 A

METAL

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

10

175 Cel

SILICON

80 V

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

TO-5

NOT SPECIFIED

NOT SPECIFIED

2N5390

Texas Instruments

NPN

DARLINGTON WITH BUILT-IN DIODE

NO

1 W

2 A

METAL

SWITCHING

WIRE

ROUND

1

4

CYLINDRICAL

Other Transistors

1000

200 Cel

SILICON

80 V

BOTTOM

O-MBCY-W4

COLLECTOR

Not Qualified

TO-33

NOT SPECIFIED

NOT SPECIFIED

A7T3391

Texas Instruments

NPN

SINGLE

NO

.625 W

.1 A

PLASTIC/EPOXY

AMPLIFIER

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

250

150 Cel

SILICON

25 V

BOTTOM

O-PBCY-W3

Not Qualified

TO-92

NOT SPECIFIED

NOT SPECIFIED

2N6464

Texas Instruments

NPN

SINGLE

NO

70 MHz

1 W

.1 A

METAL

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

20

200 Cel

SILICON

250 V

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

TO-39

NOT SPECIFIED

NOT SPECIFIED

2N5220

Texas Instruments

NPN

SINGLE

NO

100 MHz

.62 W

.5 A

PLASTIC/EPOXY

AMPLIFIER

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

30

150 Cel

SILICON

15 V

BOTTOM

O-PBCY-W3

Not Qualified

TO-92

NOT SPECIFIED

NOT SPECIFIED

2N120

Texas Instruments

NPN

SINGLE

NO

7 MHz

.15 W

.025 A

METAL

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

76

175 Cel

SILICON

BOTTOM

O-MBCY-W3

ISOLATED

Not Qualified

NOT SPECIFIED

NOT SPECIFIED

2N2807

Texas Instruments

PNP

SEPARATE, 2 ELEMENTS

NO

60 MHz

.25 W

.03 A

METAL

AMPLIFIER

WIRE

ROUND

2

6

CYLINDRICAL

Other Transistors

40

175 Cel

SILICON

20 V

BOTTOM

O-MBCY-W6

ISOLATED

Not Qualified

LOW NOISE

TO-78

NOT SPECIFIED

NOT SPECIFIED

A5T2605

Texas Instruments

PNP

SINGLE

NO

30 MHz

.625 W

.03 A

PLASTIC/EPOXY

AMPLIFIER

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

150

150 Cel

SILICON

45 V

BOTTOM

O-PBCY-W3

Not Qualified

LOW NOISE

NOT SPECIFIED

NOT SPECIFIED

2N2662

Texas Instruments

PNP

SINGLE

NO

15 W

3 A

METAL

SWITCHING

WIRE

UNSPECIFIED

1

3

POST/STUD MOUNT

Other Transistors

15

100 Cel

GERMANIUM

30 V

UPPER

X-MUPM-W3

COLLECTOR

Not Qualified

2N2661

Texas Instruments

PNP

SINGLE

NO

15 W

3 A

METAL

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

15

100 Cel

GERMANIUM

50 V

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

TO-5

NOT SPECIFIED

NOT SPECIFIED

2N2804

Texas Instruments

PNP

SEPARATE, 2 ELEMENTS

NO

60 MHz

.25 W

.03 A

METAL

AMPLIFIER

WIRE

ROUND

2

6

CYLINDRICAL

Other Transistors

20

175 Cel

SILICON

20 V

BOTTOM

O-MBCY-W6

ISOLATED

Not Qualified

LOW NOISE

TO-78

NOT SPECIFIED

NOT SPECIFIED

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