.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

2SC3645S

Onsemi

NPN

SINGLE

YES

150 MHz

.5 W

.14 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

1.3 W

140

150 Cel

SILICON

160 V

SINGLE

R-PSSO-F3

COLLECTOR

Not Qualified

HIGH RELIABILITY

TO-243

2SC3646S

Onsemi

NPN

SINGLE

YES

120 MHz

.5 W

1 A

1

Other Transistors

140

150 Cel

NST3906DXV6T1

Onsemi

PNP

SEPARATE, 2 ELEMENTS

YES

250 MHz

.5 W

.2 A

PLASTIC/EPOXY

AMPLIFIER

FLAT

RECTANGULAR

2

6

SMALL OUTLINE

Other Transistors

30

150 Cel

SILICON

40 V

70 ns

300 ns

TIN

DUAL

R-PDSO-F6

1

Not Qualified

e3

30

260

2SD1626

Onsemi

NPN

SINGLE

YES

120 MHz

.5 W

1.5 A

PLASTIC/EPOXY

AMPLIFIER

1.5 V

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

1.5 W

4000

150 Cel

SILICON

50 V

SINGLE

R-PSSO-F3

COLLECTOR

Not Qualified

2SC3648R

Onsemi

NPN

SINGLE

YES

120 MHz

.5 W

.7 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

100

150 Cel

SILICON

160 V

SINGLE

R-PSSO-F3

COLLECTOR

Not Qualified

2SD1618T

Onsemi

NPN

SINGLE

YES

250 MHz

.5 W

.7 A

PLASTIC/EPOXY

AMPLIFIER

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

200

150 Cel

SILICON

15 V

SINGLE

R-PSSO-F3

COLLECTOR

JANTXV2N2222AL

Onsemi

NPN

SINGLE

NO

.5 W

.8 A

METAL

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

100

200 Cel

SILICON

50 V

35 ns

300 ns

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

MIL-19500/255T

2SA1416S

Onsemi

PNP

SINGLE

YES

120 MHz

.5 W

1 A

1

Other Transistors

140

150 Cel

2SC3649S

Onsemi

NPN

SINGLE

YES

120 MHz

.5 W

1.5 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

140

150 Cel

SILICON

160 V

SINGLE

R-PSSO-F3

COLLECTOR

KSD1621STF

Onsemi

NPN

SINGLE

YES

150 MHz

.5 W

2 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

140

150 Cel

SILICON

25 V

MATTE TIN

SINGLE

R-PSSO-F3

1

Not Qualified

e3

BC858CDXV6T1

Onsemi

PNP

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

30 V

TIN

DUAL

R-PDSO-F6

1

Not Qualified

e3

30

260

NST3904DXV6T5G

Onsemi

NPN

SEPARATE, 2 ELEMENTS

YES

300 MHz

.5 W

.2 A

PLASTIC/EPOXY

AMPLIFIER

FLAT

RECTANGULAR

2

6

SMALL OUTLINE

Other Transistors

30

150 Cel

SILICON

40 V

70 ns

250 ns

MATTE TIN

DUAL

R-PDSO-F6

1

Not Qualified

e3

30

260

2SB1118T

Onsemi

PNP

SINGLE

YES

250 MHz

.5 W

.7 A

PLASTIC/EPOXY

AMPLIFIER

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

200

150 Cel

SILICON

15 V

SINGLE

R-PSSO-F3

COLLECTOR

2SB1118

Onsemi

PNP

SINGLE

YES

250 MHz

.5 W

.7 A

PLASTIC/EPOXY

AMPLIFIER

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

60

150 Cel

SILICON

15 V

SINGLE

R-PSSO-F3

COLLECTOR

2SA1416R

Onsemi

PNP

SINGLE

YES

120 MHz

.5 W

1 A

1

Other Transistors

100

150 Cel

BC847BPDXV6T5G

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

Tin (Sn)

DUAL

R-PDSO-F6

1

Not Qualified

e3

NOT SPECIFIED

NOT SPECIFIED

2SA1419R

Onsemi

PNP

SINGLE

YES

120 MHz

.5 W

1.5 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

100

150 Cel

SILICON

160 V

SINGLE

R-PSSO-F3

COLLECTOR

FMMT449

Onsemi

NPN

SINGLE

YES

150 MHz

.5 W

1 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

40

150 Cel

SILICON

30 V

Tin (Sn)

DUAL

R-PDSO-G3

1

Not Qualified

e3

30

260

2SA1418R

Onsemi

PNP

SINGLE

YES

120 MHz

.5 W

.7 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

100

150 Cel

SILICON

160 V

SINGLE

R-PSSO-F3

COLLECTOR

Not Qualified

2SA1418

Onsemi

PNP

SINGLE

YES

120 MHz

.5 W

.7 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

100

150 Cel

SILICON

160 V

SINGLE

R-PSSO-F3

COLLECTOR

Not Qualified

NSVBC114EPDXV6T1G

Onsemi

NPN AND PNP

SEPARATE, 2 ELEMENTS WITH BUILT-IN RESISTOR

YES

.5 W

.1 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

2

6

SMALL OUTLINE

BIP General Purpose Small Signal

35

SILICON

50 V

MATTE TIN

DUAL

R-PDSO-F6

1

BUILT IN BIAS RESISTANCE RATIO IS 1

e3

30

260

AEC-Q101

NSVBC123JDXV6T5G

Onsemi

NPN

SEPARATE, 2 ELEMENTS WITH BUILT-IN RESISTOR

YES

.5 W

.1 A

PLASTIC/EPOXY

SWITCHING

.25 V

FLAT

RECTANGULAR

2

6

SMALL OUTLINE

80

150 Cel

SILICON

50 V

-55 Cel

DUAL

R-PDSO-F6

BUILT-IN BIAS RESISTOR

AEC-Q101

2SC3651

Onsemi

NPN

SINGLE

YES

150 MHz

.5 W

.2 A

PLASTIC/EPOXY

AMPLIFIER

.5 V

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

1.3 W

400

150 Cel

SILICON

100 V

SINGLE

R-PSSO-F3

COLLECTOR

Not Qualified

NST3946DXV6T1G

Onsemi

NPN AND PNP

SEPARATE, 2 ELEMENTS

YES

300 MHz

.5 W

.2 A

PLASTIC/EPOXY

AMPLIFIER

FLAT

RECTANGULAR

2

6

SMALL OUTLINE

BIP General Purpose Small Signal

30

150 Cel

SILICON

40 V

70 ns

250 ns

MATTE TIN

DUAL

R-PDSO-F6

1

Not Qualified

e3

30

260

JANTXV2N2221A

Onsemi

NPN

SINGLE

NO

250 MHz

.5 W

.8 A

METAL

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

40

175 Cel

SILICON

50 V

35 ns

300 ns

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

MIL-19500/255T

NST3904DXV6T1G

Onsemi

NPN

SEPARATE, 2 ELEMENTS

YES

300 MHz

.5 W

.2 A

PLASTIC/EPOXY

AMPLIFIER

FLAT

RECTANGULAR

2

6

SMALL OUTLINE

Other Transistors

30

150 Cel

SILICON

40 V

70 ns

250 ns

MATTE TIN

DUAL

R-PDSO-F6

1

Not Qualified

e3

30

260

2SC3649R

Onsemi

NPN

SINGLE

YES

120 MHz

.5 W

1.5 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

100

150 Cel

SILICON

160 V

SINGLE

R-PSSO-F3

COLLECTOR

NST3946DXV6T1

Onsemi

NPN AND PNP

SEPARATE, 2 ELEMENTS

YES

300 MHz

.5 W

.2 A

PLASTIC/EPOXY

AMPLIFIER

FLAT

RECTANGULAR

2

6

SMALL OUTLINE

BIP General Purpose Small Signal

30

150 Cel

SILICON

40 V

70 ns

250 ns

TIN

DUAL

R-PDSO-F6

1

Not Qualified

e3

260

NSVBA114YDXV6T1G

Onsemi

PNP

SEPARATE, 2 ELEMENTS WITH BUILT-IN RESISTOR

YES

.5 W

.1 A

PLASTIC/EPOXY

.25 V

FLAT

RECTANGULAR

2

6

SMALL OUTLINE

80

150 Cel

SILICON

50 V

-55 Cel

MATTE TIN

DUAL

R-PDSO-F6

1

BUILT IN BIAS RESISTOR

e3

30

260

AEC-Q101

JANTX2N2222AL

Onsemi

NPN

SINGLE

NO

.5 W

.8 A

METAL

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

100

200 Cel

SILICON

50 V

35 ns

300 ns

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

MIL-19500/255T

2SD1618S

Onsemi

NPN

SINGLE

YES

250 MHz

.5 W

.7 A

PLASTIC/EPOXY

AMPLIFIER

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

140

150 Cel

SILICON

15 V

SINGLE

R-PSSO-F3

COLLECTOR

2SA1415

Onsemi

PNP

SINGLE

YES

150 MHz

.5 W

.14 A

PLASTIC/EPOXY

SWITCHING

.4 V

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

1.3 W

100

150 Cel

SILICON

160 V

SINGLE

R-PSSO-F3

COLLECTOR

Not Qualified

HIGH RELIABILITY

TO-243

2SB1124

Onsemi

PNP

SINGLE

YES

150 MHz

.5 W

3 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

35

150 Cel

SILICON

50 V

SINGLE

R-PSSO-F3

COLLECTOR

BC847BPDXV6T5

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

TIN

DUAL

R-PDSO-F6

1

Not Qualified

e3

30

260

BC847BPDXV6T1

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

TIN

DUAL

R-PDSO-F6

1

Not Qualified

e3

30

260

KSD1621TTF

Onsemi

NPN

SINGLE

YES

150 MHz

.5 W

2 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

200

150 Cel

SILICON

25 V

MATTE TIN

SINGLE

R-PSSO-F3

1

Not Qualified

e3

2SB1121T

Onsemi

PNP

SINGLE

YES

150 MHz

.5 W

2 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

200

150 Cel

SILICON

25 V

SINGLE

R-PSSO-F3

COLLECTOR

2SD1621S

Onsemi

NPN

SINGLE

YES

150 MHz

.5 W

2 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

140

150 Cel

SILICON

25 V

SINGLE

R-PSSO-F3

COLLECTOR

BC847CDXV6T5G

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

TIN

DUAL

R-PDSO-F6

1

Not Qualified

e3

30

260

2SC3645T

Onsemi

NPN

SINGLE

YES

150 MHz

.5 W

.14 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

1.3 W

200

150 Cel

SILICON

160 V

SINGLE

R-PSSO-F3

COLLECTOR

Not Qualified

HIGH RELIABILITY

TO-243

BC847CDXV6T5

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

TIN

DUAL

R-PDSO-F6

1

Not Qualified

e3

30

260

NST3904DXV6T5

Onsemi

NPN

SEPARATE, 2 ELEMENTS

YES

300 MHz

.5 W

.2 A

PLASTIC/EPOXY

AMPLIFIER

FLAT

RECTANGULAR

2

6

SMALL OUTLINE

Other Transistors

30

150 Cel

SILICON

40 V

70 ns

250 ns

TIN

DUAL

R-PDSO-F6

1

Not Qualified

e3

30

260

NSVBC115EPDXV6T1G

Onsemi

NPN AND PNP

SEPARATE, 2 ELEMENTS WITH BUILT-IN RESISTOR

YES

.5 W

.1 A

PLASTIC/EPOXY

.25 V

FLAT

RECTANGULAR

2

6

SMALL OUTLINE

80

150 Cel

SILICON

50 V

-55 Cel

DUAL

R-PDSO-F6

BUILT IN BAIS RESISTOR RATIO IS 1

NOT SPECIFIED

NOT SPECIFIED

AEC-Q101

NSVBC143ZPDXV6T5G

Onsemi

NPN AND PNP

SEPARATE, 2 ELEMENTS WITH BUILT-IN RESISTOR

YES

.5 W

.1 A

PLASTIC/EPOXY

.25 V

FLAT

RECTANGULAR

2

6

SMALL OUTLINE

80

150 Cel

SILICON

50 V

-55 Cel

MATTE TIN

DUAL

R-PDSO-F6

1

BUILT IN BIAS RESISTOR RATIO IS 10

e3

30

260

AEC-Q101

NST3946DXV6T5G

Onsemi

NPN AND PNP

SEPARATE, 2 ELEMENTS

YES

300 MHz

.5 W

.2 A

PLASTIC/EPOXY

AMPLIFIER

FLAT

RECTANGULAR

2

6

SMALL OUTLINE

BIP General Purpose Small Signal

30

150 Cel

SILICON

40 V

70 ns

250 ns

MATTE TIN

DUAL

R-PDSO-F6

1

Not Qualified

e3

30

260

NSVBA114EDXV6T1G

Onsemi

PNP

SEPARATE, 2 ELEMENTS WITH BUILT-IN RESISTOR

YES

.5 W

.1 A

PLASTIC/EPOXY

SWITCHING

.25 V

FLAT

RECTANGULAR

2

6

SMALL OUTLINE

35

150 Cel

SILICON

50 V

-55 Cel

MATTE TIN

DUAL

R-PDSO-F6

1

BUILT IN BAIS RESISTOR RATIO IS 1

e3

30

260

AEC-Q101

2SC3646

Onsemi

NPN

SINGLE

YES

120 MHz

.5 W

1 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

100

150 Cel

SILICON

100 V

SINGLE

R-PSSO-F3

COLLECTOR

FMMT549

Onsemi

PNP

SINGLE

YES

100 MHz

.5 W

1 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

40

150 Cel

SILICON

30 V

TIN

DUAL

R-PDSO-G3

1

Not Qualified

e3

30

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