.5 W Small Signal Bipolar Junction Transistors (BJT) 818

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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

2N2222A

Texas Instruments

NPN

SINGLE

NO

300 MHz

.5 W

.8 A

METAL

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

50

175 Cel

SILICON

40 V

35 ns

-65 Cel

285 ns

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

TO-18

NOT SPECIFIED

NOT SPECIFIED

2N2222AUB

Microchip Technology

NPN

SINGLE

YES

.5 W

.8 A

CERAMIC, METAL-SEALED COFIRED

SWITCHING

NO LEAD

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

30

200 Cel

SILICON

50 V

35 ns

-65 Cel

300 ns

TIN LEAD

DUAL

R-CDSO-N3

Not Qualified

e0

MIL-19500/255

2N2222AUBC

Microchip Technology

NPN

SINGLE

YES

.5 W

.8 A

CERAMIC, METAL-SEALED COFIRED

SWITCHING

NO LEAD

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

30

200 Cel

SILICON

50 V

35 ns

300 ns

TIN LEAD

DUAL

R-CDSO-N3

Not Qualified

e0

JANTX2N2222AUA

Microchip Technology

NPN

SINGLE

YES

250 MHz

.5 W

.8 A

CERAMIC, METAL-SEALED COFIRED

SWITCHING

NO LEAD

RECTANGULAR

1

4

SMALL OUTLINE

Other Transistors

30

200 Cel

SILICON

50 V

35 ns

300 ns

TIN LEAD

DUAL

R-CDSO-N4

Qualified

e0

MIL-19500/255

BC846B,235

NXP Semiconductors

NPN

SINGLE

YES

100 MHz

.5 W

.1 A

PLASTIC/EPOXY

SWITCHING

.6 V

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

200

150 Cel

SILICON

65 V

TIN

DUAL

R-PDSO-G3

1

Not Qualified

TO-236AB

e3

30

260

BC556BTF

Onsemi

PNP

SINGLE

NO

150 MHz

.5 W

.1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

200

150 Cel

SILICON

65 V

MATTE TIN

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e3

FMMT493TA

Diodes Incorporated

NPN

SINGLE

YES

150 MHz

.5 W

1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

20

150 Cel

SILICON

100 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

e3

30

260

FMMT458TA

Diodes Incorporated

NPN

SINGLE

YES

50 MHz

.5 W

.225 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

100

150 Cel

SILICON

400 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

e3

30

260

SBC847BPDXV6T1G

Onsemi

NPN AND PNP

SEPARATE, 2 ELEMENTS

YES

100 MHz

.5 W

.1 A

PLASTIC/EPOXY

AMPLIFIER

FLAT

RECTANGULAR

2

6

SMALL OUTLINE

BIP General Purpose Small Signal

200

150 Cel

SILICON

45 V

-55 Cel

MATTE TIN

DUAL

R-PDSO-F6

1

e3

30

260

AEC-Q101

FMMT491ATA

Diodes Incorporated

NPN

SINGLE

YES

150 MHz

.5 W

1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

35

150 Cel

SILICON

40 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

e3

30

260

BC557BTF

Onsemi

PNP

SINGLE

NO

150 MHz

.5 W

.1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

200

150 Cel

SILICON

45 V

MATTE TIN

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e3

2N2222

Texas Instruments

NPN

SINGLE

NO

250 MHz

.5 W

.8 A

METAL

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

50

175 Cel

SILICON

30 V

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

TO-18

NOT SPECIFIED

NOT SPECIFIED

BC847CDXV6T1G

Onsemi

NPN

SEPARATE, 2 ELEMENTS

YES

100 MHz

.5 W

.1 A

PLASTIC/EPOXY

AMPLIFIER

FLAT

RECTANGULAR

2

6

SMALL OUTLINE

Other Transistors

420

150 Cel

SILICON

45 V

MATTE TIN

DUAL

R-PDSO-F6

1

Not Qualified

e3

30

260

BC846A,235

NXP Semiconductors

NPN

SINGLE

YES

100 MHz

.5 W

.1 A

PLASTIC/EPOXY

SWITCHING

.6 V

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

110

150 Cel

SILICON

65 V

TIN

DUAL

R-PDSO-G3

1

Not Qualified

TO-236AB

e3

30

260

FMMT593TA

Diodes Incorporated

PNP

SINGLE

YES

50 MHz

.5 W

1 A

PLASTIC/EPOXY

SWITCHING

.3 V

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

50

150 Cel

10 pF

SILICON

100 V

-55 Cel

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

e3

30

260

STR2550

STMicroelectronics

PNP

SINGLE

YES

.5 W

.5 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

10

150 Cel

SILICON

500 V

MATTE TIN

DUAL

R-PDSO-G3

1

e3

30

260

FMMT495TA

Diodes Incorporated

NPN

SINGLE

YES

100 MHz

.5 W

1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

10

150 Cel

SILICON

150 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

e3

30

260

FMMT491TA

Diodes Incorporated

NPN

SINGLE

YES

150 MHz

.5 W

1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

30

150 Cel

SILICON

60 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

e3

30

260

FSB560A

Onsemi

NPN

SINGLE

YES

75 MHz

.5 W

2 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

250

150 Cel

SILICON

60 V

TIN

DUAL

R-PDSO-G3

1

Not Qualified

e3

30

260

2N3700

Microchip Technology

NPN

SINGLE

NO

100 MHz

.5 W

1 A

METAL

SWITCHING

.5 V

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

1.8 W

15

175 Cel

12 pF

SILICON

80 V

TIN LEAD

BOTTOM

O-MBCY-W3

Not Qualified

TO-206AA

e0

FMMT497TA

Diodes Incorporated

NPN

SINGLE

YES

75 MHz

.5 W

.5 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

100

150 Cel

SILICON

300 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

e3

30

260

2N3700UB

Microchip Technology

NPN

SINGLE

YES

100 MHz

.5 W

1 A

CERAMIC, METAL-SEALED COFIRED

SWITCHING

NO LEAD

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

15

175 Cel

SILICON

80 V

TIN LEAD

DUAL

R-CDSO-N3

Not Qualified

HIGH RELIABILITY

e0

FMMT491A

Diodes Incorporated

NPN

SINGLE

YES

150 MHz

.5 W

1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

35

150 Cel

SILICON

40 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

e3

30

260

BC546CTA

Onsemi

NPN

SINGLE

NO

300 MHz

.5 W

.1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

420

150 Cel

SILICON

65 V

MATTE TIN

BOTTOM

O-PBCY-T3

Not Qualified

LOW NOISE

TO-92

e3

BC546CT&A

Continental Device India

NPN

SINGLE

NO

300 MHz

.5 W

.1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

420

150 Cel

SILICON

65 V

MATTE TIN

BOTTOM

O-PBCY-T3

Not Qualified

LOW NOISE

TO-92

e3

STR1550

STMicroelectronics

NPN

SINGLE

YES

.5 W

.5 A

PLASTIC/EPOXY

AMPLIFIER

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

10

150 Cel

SILICON

500 V

MATTE TIN

DUAL

R-PDSO-G3

1

e3

260

FMMT591ATA

Diodes Incorporated

PNP

SINGLE

YES

150 MHz

.5 W

1 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

30

150 Cel

SILICON

40 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

e3

30

260

SBC847CDXV6T1G

Onsemi

NPN

YES

100 MHz

.5 W

.1 A

Other Transistors

420

150 Cel

MATTE TIN

1

e3

30

260

2STR1160

STMicroelectronics

NPN

SINGLE

YES

.5 W

1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

85

150 Cel

SILICON

60 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

e3

210

FMMT491ATC

Diodes Incorporated

NPN

SINGLE

YES

150 MHz

.5 W

1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

35

150 Cel

SILICON

40 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

e3

30

260

JANTXV2N2907AUBP

Microchip Technology

PNP

SINGLE

YES

.5 W

.6 A

CERAMIC, METAL-SEALED COFIRED

1.6 V

NO LEAD

RECTANGULAR

1

3

SMALL OUTLINE

.5 W

50

200 Cel

8 pF

SILICON

60 V

45 ns

-65 Cel

300 ns

DUAL

R-CDSO-N3

Not Qualified

MIL-19500

FMMT491TC

Diodes Incorporated

NPN

SINGLE

YES

150 MHz

.5 W

1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

100

150 Cel

SILICON

60 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

e3

30

260

FMMT491QTA

Diodes Incorporated

NPN

SINGLE

YES

150 MHz

.5 W

1 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

30

150 Cel

SILICON

60 V

MATTE TIN

DUAL

R-PDSO-G3

1

HIGH RELIABILITY

e3

30

260

AEC-Q101

FMMT493ATA

Diodes Incorporated

NPN

SINGLE

YES

150 MHz

.5 W

1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

20

150 Cel

SILICON

60 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

e3

30

260

FMMT558TA

Diodes Incorporated

PNP

SINGLE

YES

50 MHz

.5 W

.15 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

100

150 Cel

SILICON

400 V

95 ns

-55 Cel

1600 ns

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

e3

30

260

BC847BPDXV6T1G

Onsemi

NPN AND PNP

SEPARATE, 2 ELEMENTS

YES

100 MHz

.5 W

.1 A

PLASTIC/EPOXY

AMPLIFIER

FLAT

RECTANGULAR

2

6

SMALL OUTLINE

BIP General Purpose Small Signal

200

150 Cel

SILICON

45 V

-55 Cel

MATTE TIN

DUAL

R-PDSO-F6

1

Not Qualified

e3

30

260

2STR2230

STMicroelectronics

PNP

SINGLE

YES

100 MHz

.5 W

1.5 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

70

150 Cel

SILICON

30 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

e3

260

FMMT560TA

Diodes Incorporated

PNP

SINGLE

YES

60 MHz

.5 W

.15 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

80

150 Cel

SILICON

500 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

e3

30

260

FSB560

Onsemi

NPN

SINGLE

YES

75 MHz

.5 W

2 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

100

150 Cel

SILICON

60 V

TIN

DUAL

R-PDSO-G3

1

Not Qualified

e3

30

260

2N720A

Texas Instruments

NPN

SINGLE

NO

50 MHz

.5 W

METAL

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

20

200 Cel

SILICON

80 V

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

HIGH RELIABILITY

TO-18

NOT SPECIFIED

NOT SPECIFIED

FMMT491

Diodes Incorporated

NPN

SINGLE

YES

150 MHz

.5 W

1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

100

150 Cel

SILICON

60 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

e3

30

260

FMMT491QTC

Diodes Incorporated

NPN

SINGLE

YES

150 MHz

.5 W

1 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

30

150 Cel

SILICON

60 V

MATTE TIN

DUAL

R-PDSO-G3

1

HIGH RELIABILITY

e3

30

260

AEC-Q101

FMMT491-TP

Micro Commercial Components

NPN

SINGLE

YES

150 MHz

.5 W

1 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

80

150 Cel

SILICON

60 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

e3

10

260

BC169-B

Infineon Technologies

NPN

SINGLE

NO

200 MHz

.5 W

.1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

200

150 Cel

SILICON

BOTTOM

O-PBCY-T3

Not Qualified

FMMT493TC

Diodes Incorporated

NPN

SINGLE

YES

150 MHz

.5 W

1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

20

150 Cel

SILICON

100 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

e3

30

260

BC547BA1

Taiwan Semiconductor

NPN

SINGLE

NO

.5 W

.1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

.5 W

200

150 Cel

SILICON

45 V

-65 Cel

MATTE TIN

BOTTOM

O-PBCY-T3

1

TO-92

e3

10

260

BC546BB1G

Taiwan Semiconductor

NPN

SINGLE

NO

.5 W

.1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

.5 W

200

150 Cel

SILICON

65 V

-65 Cel

MATTE TIN

BOTTOM

O-PBCY-T3

1

TO-92

e3

10

260

BC548CB1G

Taiwan Semiconductor

NPN

SINGLE

NO

.5 W

.1 A

1

Other Transistors

420

150 Cel

MATTE TIN

1

e3

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