.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

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

2SC3649T

Onsemi

NPN

SINGLE

YES

120 MHz

.5 W

1.5 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

200

150 Cel

SILICON

160 V

SINGLE

R-PSSO-F3

COLLECTOR

NSVBC143TPDXV6T1G

Onsemi

NPN AND PNP

SEPARATE, 2 ELEMENTS WITH BUILT-IN RESISTOR

YES

.5 W

.1 A

PLASTIC/EPOXY

SWITCHING

.25 V

FLAT

RECTANGULAR

2

6

SMALL OUTLINE

160

150 Cel

SILICON

50 V

-55 Cel

MATTE TIN

DUAL

R-PDSO-F6

1

BUILT IN BIAS RESISTOR

e3

30

260

AEC-Q101

NSVBC124EDXV6T1G

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

60

150 Cel

SILICON

50 V

-55 Cel

MATTE TIN

DUAL

R-PDSO-F6

1

BUILT IN BIAS RESISTOR RATIO 1

e3

30

260

AEC-Q101

2SA1415S

Onsemi

PNP

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

2SB1121S

Onsemi

PNP

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

NSVB114YPDXV6T1G

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

80

SILICON

50 V

DUAL

R-PDSO-F6

BUILT-IN BIAS RESISTOR RATIO 4.7

AEC-Q101

2SC3646R

Onsemi

NPN

SINGLE

YES

120 MHz

.5 W

1 A

1

Other Transistors

100

150 Cel

NSVBC114YDXV6T1G

Onsemi

NPN

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

80

SILICON

50 V

MATTE TIN

DUAL

R-PDSO-F6

1

BUILT IN BIAS RESISTANCE RATIO IS 4.7

e3

30

260

AEC-Q101

BC858CDXV6T5G

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

260

NST3946DXV6T5

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

30

260

2SD1624

Onsemi

NPN

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

NSVB143ZPDXV6T1G

Onsemi

NPN AND PNP

YES

.5 W

.1 A

2

BIP General Purpose Small Signal

80

SILICON

MATTE TIN

1

e3

30

260

2SD1618U

Onsemi

NPN

SINGLE

YES

250 MHz

.5 W

.7 A

PLASTIC/EPOXY

AMPLIFIER

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

280

150 Cel

SILICON

15 V

SINGLE

R-PSSO-F3

COLLECTOR

2SD1621U

Onsemi

NPN

SINGLE

YES

150 MHz

.5 W

2 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

280

150 Cel

SILICON

25 V

SINGLE

R-PSSO-F3

COLLECTOR

BC848CDXV6T5G

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

30 V

TIN

DUAL

R-PDSO-F6

1

Not Qualified

e3

260

NSVBC114YPDXV6T1G

Onsemi

NPN AND PNP

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

MATTE TIN

DUAL

R-PDSO-F6

1

BUILT IN BIAS RESISTOR RATIO 4.7

e3

30

260

AEC-Q101

2SD1621R

Onsemi

NPN

SINGLE

YES

150 MHz

.5 W

2 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

100

150 Cel

SILICON

25 V

SINGLE

R-PSSO-F3

COLLECTOR

BC858CDXV6T5

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

260

2SA1418S

Onsemi

PNP

SINGLE

YES

120 MHz

.5 W

.7 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

140

150 Cel

SILICON

160 V

SINGLE

R-PSSO-F3

COLLECTOR

Not Qualified

KSD1621RTF

Onsemi

NPN

SINGLE

YES

150 MHz

.5 W

2 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

100

150 Cel

SILICON

25 V

MATTE TIN

SINGLE

R-PSSO-F3

1

Not Qualified

e3

NST3906DXV6T5

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

260

JANTXV2N2221AL

Onsemi

NPN

SINGLE

NO

.5 W

.8 A

METAL

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

40

200 Cel

SILICON

50 V

35 ns

300 ns

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

MIL-19500/255T

2SB1118S

Onsemi

PNP

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

NSVBC114EDXV6T1G

Onsemi

NPN

YES

.5 W

.1 A

2

BIP General Purpose Small Signal

35

SILICON

MATTE TIN

1

e3

30

260

2SB1121

Onsemi

PNP

SINGLE

YES

150 MHz

.5 W

2 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

65

150 Cel

SILICON

25 V

SINGLE

R-PSSO-F3

COLLECTOR

NST3904DXV6T1

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

KSD1621UTF

Onsemi

NPN

SINGLE

YES

150 MHz

.5 W

2 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

280

150 Cel

SILICON

25 V

60 ns

525 ns

MATTE TIN

SINGLE

R-PSSO-F3

1

COLLECTOR

Not Qualified

e3

2SD1621T

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

SINGLE

R-PSSO-F3

COLLECTOR

2SC3649

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

BC848CDXV6T5

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

30 V

TIN

DUAL

R-PDSO-F6

1

Not Qualified

e3

30

260

NSVBC124XPDXV6T1G

Onsemi

NPN AND PNP

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

MATTE TIN

DUAL

R-PDSO-F6

1

BUILT IN BIAS RESISTOR RATIO IS 0.47

e3

30

260

AEC-Q101

NSVB144EPDXV6T1G

Onsemi

NPN AND PNP

YES

.5 W

.1 A

2

BIP General Purpose Small Signal

80

SILICON

2SA1419T

Onsemi

PNP

SINGLE

YES

120 MHz

.5 W

1.5 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

200

150 Cel

SILICON

160 V

SINGLE

R-PSSO-F3

COLLECTOR

NSVB123JPDXV6T1G

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

80

SILICON

50 V

DUAL

R-PDSO-F6

BUILT-IN BIAS RESISTOR RATIO 21.36

AEC-Q101

2SA1419S

Onsemi

PNP

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

2SA1419

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

NSVB143TPDXV6T1G

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

160

SILICON

50 V

DUAL

R-PDSO-F6

BUILT IN BIAS RESISTOR

AEC-Q101

NSVBC143ZPDXV6T1G

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

2SC3648S

Onsemi

NPN

SINGLE

YES

120 MHz

.5 W

.7 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

140

150 Cel

SILICON

160 V

SINGLE

R-PSSO-F3

COLLECTOR

Not Qualified

2SA1418T

Onsemi

PNP

SINGLE

YES

120 MHz

.5 W

.7 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

200

150 Cel

SILICON

160 V

SINGLE

R-PSSO-F3

COLLECTOR

Not Qualified

2SB1118U

Onsemi

PNP

SINGLE

YES

250 MHz

.5 W

.7 A

PLASTIC/EPOXY

AMPLIFIER

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

280

150 Cel

SILICON

15 V

SINGLE

R-PSSO-F3

COLLECTOR

2SD1621

Onsemi

NPN

SINGLE

YES

150 MHz

.5 W

2 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

65

150 Cel

SILICON

25 V

SINGLE

R-PSSO-F3

COLLECTOR

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