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

SOC5551HRT

STMicroelectronics

NPN

SINGLE

YES

.58 W

.5 A

UNSPECIFIED

AMPLIFIER

.2 V

NO LEAD

RECTANGULAR

1

3

SMALL OUTLINE

.36 W

30

200 Cel

6 pF

SILICON

160 V

DUAL

R-XDSO-N3

NOT SPECIFIED

NOT SPECIFIED

ESA/SCC 5201/019

BFX80

STMicroelectronics

NPN AND PNP

NO

40 MHz

.2 A

BIP General Purpose Small Signal

150

TIN LEAD

e0

STESB01STR

STMicroelectronics

YES

PLASTIC/EPOXY

GULL WING

RECTANGULAR

6

SMALL OUTLINE

DUAL

R-PDSO-G6

Not Qualified

NOT SPECIFIED

NOT SPECIFIED

2N5551UB1

STMicroelectronics

NPN

SINGLE

YES

CERAMIC, METAL-SEALED COFIRED

SWITCHING

NO LEAD

RECTANGULAR

1

3

SMALL OUTLINE

30

200 Cel

SILICON

160 V

GOLD

DUAL

R-CDSO-N3

Not Qualified

e4

520700206

STMicroelectronics

NPN

SEPARATE, 2 ELEMENTS

NO

60 MHz

.03 A

METAL

WIRE

ROUND

2

6

CYLINDRICAL

300

SILICON

60 V

BOTTOM

O-MBCY-W6

TO-77

NOT SPECIFIED

NOT SPECIFIED

EUROPEAN SPACE AGENCY

2N2222ARHRG

STMicroelectronics

NOT SPECIFIED

NOT SPECIFIED

2N5401UB07

STMicroelectronics

PNP

SINGLE

YES

PLASTIC/EPOXY

NO LEAD

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

60

200 Cel

SILICON

150 V

DUAL

R-PDSO-N3

Not Qualified

BC287

STMicroelectronics

PNP

SINGLE

NO

150 MHz

.8 W

1 A

METAL

AMPLIFIER

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

20

175 Cel

SILICON

60 V

TIN LEAD

BOTTOM

O-MBCY-W3

Not Qualified

TO-39

e0

SOC5551SW

STMicroelectronics

NPN

SINGLE

YES

CERAMIC, METAL-SEALED COFIRED

SWITCHING

NO LEAD

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

30

200 Cel

SILICON

160 V

DUAL

R-CDSO-N3

Not Qualified

EUROPEAN PART NUMBER

NOT SPECIFIED

NOT SPECIFIED

5202/001/05R

STMicroelectronics

PNP

SINGLE

YES

.5 A

PLASTIC/EPOXY

NO LEAD

RECTANGULAR

1

3

SMALL OUTLINE

50

200 Cel

SILICON

60 V

45 ns

300 ns

DUAL

R-PDSO-N3

NOT SPECIFIED

NOT SPECIFIED

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

2N2484UBT

STMicroelectronics

NPN

SINGLE

YES

.73 W

.5 A

PLASTIC/EPOXY

AMPLIFIER

.35 V

NO LEAD

RECTANGULAR

1

3

SMALL OUTLINE

.36 W

250

200 Cel

6 pF

SILICON

60 V

-65 Cel

DUAL

R-PDSO-N3

HIGH RELIABILITY

STPSA92-AP

STMicroelectronics

PNP

SINGLE

NO

50 MHz

.625 W

.5 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

40

150 Cel

SILICON

300 V

MATTE TIN

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e3

SOC2907ASW35

STMicroelectronics

SO2369

STMicroelectronics

NPN

SINGLE

YES

400 MHz

.2 W

.2 A

PLASTIC/EPOXY

SWITCHING

.25 V

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

.2 W

40

150 Cel

4 pF

SILICON

15 V

12 ns

18 ns

DUAL

R-PDSO-G3

Not Qualified

2N2484HRG

STMicroelectronics

STL71

STMicroelectronics

NPN

SINGLE

NO

.95 W

.6 A

PLASTIC/EPOXY

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

4

150 Cel

SILICON

400 V

BOTTOM

O-PBCY-W3

Not Qualified

TO-92

NOT SPECIFIED

NOT SPECIFIED

2N5551HRG

STMicroelectronics

2N2219AT1

STMicroelectronics

NPN

SINGLE

NO

3 W

.8 A

METAL

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

40

200 Cel

SILICON

40 V

35 ns

300 ns

GOLD

BOTTOM

O-MBCY-W3

Not Qualified

TO-39

e4

2N2484UB1

STMicroelectronics

NPN

SINGLE

YES

.73 W

.5 A

PLASTIC/EPOXY

AMPLIFIER

.35 V

NO LEAD

RECTANGULAR

1

3

SMALL OUTLINE

.36 W

250

200 Cel

6 pF

SILICON

60 V

-65 Cel

Gold (Au)

DUAL

R-PDSO-N3

Not Qualified

HIGH RELIABILITY

e4

2STX2220

STMicroelectronics

PNP

SINGLE

NO

.9 W

1.5 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

200

150 Cel

SILICON

20 V

TIN

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e3

BSW68

STMicroelectronics

NPN

SINGLE

NO

80 MHz

13 W

1.5 A

METAL

SWITCHING

1 V

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

5 W

15

200 Cel

35 pF

SILICON

150 V

TIN LEAD

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

TO-39

e0

MPS-A70

STMicroelectronics

PNP

SINGLE

NO

125 MHz

.625 W

.1 A

1

Other Transistors

40

150 Cel

Tin/Lead (Sn/Pb)

e0

2N5551SHR

STMicroelectronics

NPN

SINGLE

NO

.36 W

.6 A

METAL

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

30

200 Cel

SILICON

160 V

GOLD

BOTTOM

O-MBCY-W3

Not Qualified

TO-39

e4

SOC5551UB

STMicroelectronics

NPN

SINGLE

YES

CERAMIC, METAL-SEALED COFIRED

NO LEAD

RECTANGULAR

1

3

CHIP CARRIER

30

200 Cel

SILICON

160 V

GOLD

DUAL

R-CDCC-N3

Not Qualified

e4

SO3903

STMicroelectronics

NPN

SINGLE

YES

250 MHz

.2 W

.2 A

SWITCHING

1

Other Transistors

50

150 Cel

SILICON

40 V

TIN LEAD

e0

BFX91

STMicroelectronics

PNP

SINGLE

NO

60 MHz

.7 W

.1 A

METAL

AMPLIFIER

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

80

200 Cel

SILICON

180 V

-55 Cel

TIN LEAD

BOTTOM

O-MBCY-W3

Not Qualified

LOW NOISE

TO-39

e0

520101904R

STMicroelectronics

NPN

SINGLE

YES

.5 A

PLASTIC/EPOXY

NO LEAD

RECTANGULAR

1

3

SMALL OUTLINE

30

200 Cel

SILICON

160 V

DUAL

R-PDSO-N3

NOT SPECIFIED

NOT SPECIFIED

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

STL73D-L

STMicroelectronics

NPN

SINGLE WITH BUILT-IN DIODE

NO

1.5 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

10

SILICON

400 V

4700 ns

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

SO2222AW

STMicroelectronics

NPN

SINGLE

YES

270 MHz

.2 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

Not Qualified

e3

SO517

STMicroelectronics

NPN

220 MHz

.4 A

1

30000

SILICON

30 V

TIN LEAD

e0

STX690A

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

NOT SPECIFIED

NOT SPECIFIED

STX790AG-AP

STMicroelectronics

PNP

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

430 ns

400 ns

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

NOT SPECIFIED

NOT SPECIFIED

BC394

STMicroelectronics

NPN

SINGLE

NO

50 MHz

.4 W

.1 A

METAL

AMPLIFIER

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

30

175 Cel

SILICON

180 V

TIN LEAD

BOTTOM

O-MBCY-W3

Not Qualified

TO-18

e0

SOC2907AUB07

STMicroelectronics

PNP

SINGLE

YES

100 MHz

.5 A

UNSPECIFIED

.4 V

NO LEAD

RECTANGULAR

1

3

SMALL OUTLINE

.4 W

50

200 Cel

8 pF

SILICON

60 V

45 ns

300 ns

DUAL

R-XDSO-N3

HIGH RELIABILITY

EUROPEAN SPACE AGENCY

SO2221A

STMicroelectronics

NPN

250 MHz

.8 A

SWITCHING

1

40

SILICON

40 V

2N2222ASW

STMicroelectronics

2N5551UB08

STMicroelectronics

SO2907AW

STMicroelectronics

PNP

SINGLE

YES

200 MHz

.2 W

.6 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

50

150 Cel

SILICON

60 V

45 ns

100 ns

MATTE TIN

DUAL

R-PDSO-G3

Not Qualified

e3

SOC2907AHRG

STMicroelectronics

PNP

SINGLE

YES

.73 W

.5 A

UNSPECIFIED

SWITCHING

NO LEAD

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

50

200 Cel

SILICON

60 V

45 ns

300 ns

GOLD

DUAL

R-XDSO-N3

EUROPEAN PART NUMBER

e4

BSS26

STMicroelectronics

NPN

SINGLE

NO

400 MHz

.36 W

1 A

METAL

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

25

200 Cel

SILICON

40 V

35 ns

60 ns

TIN LEAD

BOTTOM

O-MBCY-W3

Not Qualified

TO-18

e0

SO4401

STMicroelectronics

NPN

250 MHz

.6 A

SWITCHING

1

100

SILICON

40 V

SOC5401HRG

STMicroelectronics

NOT SPECIFIED

NOT SPECIFIED

SOC2222AHRT

STMicroelectronics

NPN

SINGLE

YES

.8 A

UNSPECIFIED

NO LEAD

RECTANGULAR

1

3

SMALL OUTLINE

40

SILICON

40 V

35 ns

285 ns

DUAL

R-XDSO-N3

HIGH RELIABILITY

NOT SPECIFIED

NOT SPECIFIED

SOC2907AHRTW

STMicroelectronics

STX817A

STMicroelectronics

PNP

SINGLE

NO

50 MHz

.9 W

1.5 A

PLASTIC/EPOXY

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

25

150 Cel

SILICON

80 V

BOTTOM

O-PBCY-W3

Not Qualified

TO-92

NOT SPECIFIED

NOT SPECIFIED

STBV42D

STMicroelectronics

NPN

SINGLE WITH BUILT-IN DIODE

NO

1 A

PLASTIC/EPOXY

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

5

150 Cel

SILICON

400 V

MATTE TIN

BOTTOM

O-PBCY-W3

Not Qualified

TO-92

e3

SOC2484

STMicroelectronics

NPN

SINGLE

YES

.05 A

PLASTIC/EPOXY

AMPLIFIER

NO LEAD

RECTANGULAR

1

3

SMALL OUTLINE

250

200 Cel

SILICON

60 V

GOLD

DUAL

R-PDSO-N3

Not Qualified

e4

2N5551RHRT

STMicroelectronics

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