STMicroelectronics Small Signal Bipolar Junction Transistors (BJT) 490

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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

SO3905

STMicroelectronics

PNP

SINGLE

YES

200 MHz

.2 W

.2 A

SWITCHING

1

Other Transistors

50

140 Cel

SILICON

40 V

TIN LEAD

e0

BC441

STMicroelectronics

NPN

SINGLE

NO

50 MHz

10 W

2 A

METAL

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

40

175 Cel

SILICON

60 V

TIN LEAD

BOTTOM

O-MBCY-W3

Not Qualified

TO-39

e0

2N2222ARHRT

STMicroelectronics

NOT SPECIFIED

NOT SPECIFIED

SOC2222AUB11

STMicroelectronics

NPN

SINGLE

YES

.73 W

.8 A

1

Other Transistors

100

200 Cel

SILICON

40 V

STL72-AP

STMicroelectronics

NPN

SINGLE

NO

1 W

1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

5

150 Cel

SILICON

400 V

MATTE TIN

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e3

520200201

STMicroelectronics

PNP

SINGLE

NO

200 MHz

.6 A

METAL

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

50

175 Cel

SILICON

60 V

45 ns

100 ns

BOTTOM

O-MBCY-W3

TO-39

EUROPEAN SPACE AGENCY

STZT2907

STMicroelectronics

PNP

SINGLE

YES

200 MHz

1.5 W

.8 A

PLASTIC/EPOXY

AMPLIFIER

GULL WING

RECTANGULAR

1

4

SMALL OUTLINE

Other Transistors

30

150 Cel

SILICON

40 V

45 ns

100 ns

MATTE TIN

DUAL

R-PDSO-G4

COLLECTOR

Not Qualified

e3

SOC2222AHRB

STMicroelectronics

NPN

SINGLE

YES

.73 W

.8 A

CERAMIC, METAL-SEALED COFIRED

NO LEAD

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

40

200 Cel

SILICON

40 V

35 ns

285 ns

GOLD

DUAL

R-CDSO-N3

Not Qualified

e4

520200102R

STMicroelectronics

PNP

SINGLE

NO

.6 A

METAL

WIRE

ROUND

1

3

CYLINDRICAL

50

200 Cel

SILICON

60 V

45 ns

300 ns

BOTTOM

O-MBCY-W3

TO-18

NOT SPECIFIED

NOT SPECIFIED

EUROPEAN SPACE AGENCY; RH - 100K Rad(Si)

BCY79IX

STMicroelectronics

PNP

SINGLE

NO

180 MHz

.6 W

.2 A

METAL

AMPLIFIER

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

60

175 Cel

SILICON

45 V

150 ns

800 ns

TIN LEAD

BOTTOM

O-MBCY-W3

Not Qualified

TO-18

e0

SOC3700RHRT

STMicroelectronics

NPN

SINGLE

YES

.76 W

1 A

UNSPECIFIED

AMPLIFIER

.5 V

NO LEAD

RECTANGULAR

1

3

SMALL OUTLINE

.5 W

50

200 Cel

12 pF

SILICON

80 V

-65 Cel

DUAL

R-XDSO-N3

ESA/SCC 5201/004; RH - 100K Rad(Si)

BSS74S

STMicroelectronics

PNP

SINGLE

NO

50 MHz

.5 W

.1 A

METAL

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

35

175 Cel

SILICON

200 V

TIN LEAD

BOTTOM

O-MBCY-W3

Not Qualified

TO-18

e0

STBV42-AP

STMicroelectronics

NPN

SINGLE

NO

1 W

1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

5

150 Cel

SILICON

400 V

MATTE TIN

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e3

BUY48

STMicroelectronics

NPN

SINGLE

NO

90 MHz

10 W

7 A

METAL

SWITCHING

1 V

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

10 W

15

200 Cel

80 pF

SILICON

170 V

1000 ns

2000 ns

MATTE TIN

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

TO-39

e3

BF657

STMicroelectronics

NPN

SINGLE

NO

90 MHz

7 W

.1 A

METAL

AMPLIFIER

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

25

175 Cel

SILICON

160 V

TIN LEAD

BOTTOM

O-MBCY-W3

Not Qualified

TO-39

e0

SOC5401RHRTW

STMicroelectronics

SOC5551HRGW

STMicroelectronics

STBV42

STMicroelectronics

NPN

SINGLE

NO

1 W

1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

5

150 Cel

SILICON

400 V

MATTE TIN

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e3

STL72H

STMicroelectronics

NPN

SINGLE

NO

1 A

PLASTIC/EPOXY

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

15

150 Cel

SILICON

400 V

BOTTOM

O-PBCY-W3

Not Qualified

TO-92

2N2222AUBT

STMicroelectronics

NOT SPECIFIED

NOT SPECIFIED

SOC2222ARHRTW

STMicroelectronics

STX690A-AP

STMicroelectronics

NPN

SINGLE

NO

100 MHz

.9 W

3 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

90

150 Cel

SILICON

30 V

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

STF92

STMicroelectronics

PNP

SINGLE

YES

60 MHz

1.3 W

.0001 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

75

150 Cel

SILICON

300 V

MATTE TIN

SINGLE

R-PSSO-F3

COLLECTOR

Not Qualified

e3

BC479

STMicroelectronics

PNP

SINGLE

NO

150 MHz

.36 W

.15 A

METAL

AMPLIFIER

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

200

175 Cel

SILICON

40 V

TIN LEAD

BOTTOM

O-MBCY-W3

Not Qualified

VERY LOW NOISE

TO-18

e0

BC478

STMicroelectronics

PNP

SINGLE

NO

150 MHz

.36 W

.15 A

METAL

AMPLIFIER

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

110

175 Cel

SILICON

40 V

TIN LEAD

BOTTOM

O-MBCY-W3

Not Qualified

LOW NOISE

TO-18

e0

SO2222A

STMicroelectronics

NPN

SINGLE

YES

270 MHz

.25 W

.6 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

40

150 Cel

SILICON

40 V

35 ns

285 ns

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

e3

260

J2N2907AUB1

STMicroelectronics

PNP

SINGLE

YES

.5 A

UNSPECIFIED

SWITCHING

NO LEAD

RECTANGULAR

1

3

SMALL OUTLINE

50

SILICON

60 V

45 ns

300 ns

Gold (Au)

DUAL

R-XDSO-N3

e4

SOC2222ASW

STMicroelectronics

NPN

SINGLE

YES

.73 W

.8 A

1

Other Transistors

100

200 Cel

2N2222AUB12

STMicroelectronics

NPN

SINGLE

YES

.73 W

.8 A

1

Other Transistors

100

200 Cel

STX817

STMicroelectronics

PNP

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

TIN LEAD

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e0

SOC2907AUB06

STMicroelectronics

2N2484UB06

STMicroelectronics

NPN

SINGLE

YES

.05 A

PLASTIC/EPOXY

AMPLIFIER

NO LEAD

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

250

200 Cel

SILICON

60 V

GOLD

DUAL

R-PDSO-N3

Not Qualified

e4

520100205R

STMicroelectronics

NPN

SINGLE

YES

.8 A

PLASTIC/EPOXY

NO LEAD

RECTANGULAR

1

3

SMALL OUTLINE

40

200 Cel

SILICON

40 V

35 ns

285 ns

DUAL

R-PDSO-N3

NOT SPECIFIED

NOT SPECIFIED

EUROPEAN SPACE AGENCY; RH - 100K Rad(Si)

STBV45G-AP

STMicroelectronics

NPN

SINGLE

NO

.95 W

.75 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

5

150 Cel

SILICON

400 V

MATTE TIN

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e3

MPS-A20

STMicroelectronics

NPN

SINGLE

NO

125 MHz

.625 W

.1 A

1

Other Transistors

40

150 Cel

Tin/Lead (Sn/Pb)

e0

BDW91

STMicroelectronics

NPN

DARLINGTON WITH BUILT-IN DIODE AND RESISTOR

NO

10 W

4 A

METAL

SWITCHING

2 V

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

10 W

1000

200 Cel

SILICON

180 V

TIN LEAD

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

TO-39

e0

5202/001/06R

STMicroelectronics

3STL2540

STMicroelectronics

PNP

SINGLE

YES

1.2 W

5 A

1

Other Transistors

100

150 Cel

NOT SPECIFIED

NOT SPECIFIED

2STX2360

STMicroelectronics

PNP

SINGLE

NO

130 MHz

1 W

3 A

PLASTIC/EPOXY

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

160

150 Cel

SILICON

60 V

115 ns

400 ns

MATTE TIN

BOTTOM

O-PBCY-W3

Not Qualified

TO-92

e3

STL72L

STMicroelectronics

NPN

SINGLE

NO

1 A

PLASTIC/EPOXY

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

10

150 Cel

SILICON

400 V

BOTTOM

O-PBCY-W3

Not Qualified

TO-92

2N5401UBG

STMicroelectronics

NOT SPECIFIED

NOT SPECIFIED

520700212

STMicroelectronics

NPN

SEPARATE, 2 ELEMENTS

YES

60 MHz

.03 A

PLASTIC/EPOXY

NO LEAD

RECTANGULAR

2

6

SMALL OUTLINE

300

SILICON

60 V

DUAL

R-PDSO-N6

NOT SPECIFIED

NOT SPECIFIED

EUROPEAN SPACE AGENCY

2N2222ASB

STMicroelectronics

NPN

SINGLE

NO

300 MHz

.6 A

METAL

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

40

175 Cel

SILICON

40 V

35 ns

285 ns

BOTTOM

O-MBCY-W3

Not Qualified

TO-18

SO5401

STMicroelectronics

PNP

SINGLE

YES

100 MHz

.2 W

.6 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

4

SMALL OUTLINE

Other Transistors

60

150 Cel

SILICON

150 V

MATTE TIN

DUAL

R-PDSO-G4

1

Not Qualified

e3

2N5551/T1

STMicroelectronics

NPN

SINGLE

NO

METAL

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

30

200 Cel

SILICON

160 V

GOLD

BOTTOM

O-MBCY-W3

Not Qualified

TO-18

e4

SOC3810HRTW

STMicroelectronics

PNP

SEPARATE, 2 ELEMENTS

YES

80 MHz

.6 W

.05 A

UNSPECIFIED

.25 V

NO LEAD

RECTANGULAR

2

6

SMALL OUTLINE

.6 W

125

200 Cel

6 pF

SILICON

60 V

DUAL

R-XDSO-N6

ESA/SCC 5207/005

SOC2920AHRG

STMicroelectronics

NPN

SEPARATE, 2 ELEMENTS

YES

60 MHz

.5 W

.03 A

UNSPECIFIED

AMPLIFIER

.35 V

NO LEAD

RECTANGULAR

2

6

SMALL OUTLINE

.5 W

300

200 Cel

6 pF

SILICON

60 V

DUAL

R-XDSO-N6

NOT SPECIFIED

NOT SPECIFIED

ESA/SCC 5207/002

SOC3700SW

STMicroelectronics

NPN

SINGLE

YES

1 A

PLASTIC/EPOXY

NO LEAD

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

50

200 Cel

SILICON

80 V

DUAL

R-PDSO-N3

Not Qualified

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