1 W Small Signal Bipolar Junction Transistors (BJT) 944

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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

2SA1156-N

Renesas Electronics

PNP

SINGLE

NO

1 W

.5 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

RECTANGULAR

1

3

FLANGE MOUNT

Other Transistors

30

150 Cel

SILICON

400 V

1000 ns

5000 ns

TIN LEAD

SINGLE

R-PSFM-T3

COLLECTOR

Not Qualified

e0

2SD1368CCTL-E

Renesas Electronics

NPN

SINGLE

YES

100 MHz

1 W

1 A

PLASTIC/EPOXY

AMPLIFIER

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

250

150 Cel

SILICON

50 V

TIN BISMUTH

SINGLE

R-PSSO-F3

1

COLLECTOR

Not Qualified

e6

20

260

2SB795-AZ

Renesas Electronics

PNP

DARLINGTON WITH BUILT-IN DIODE AND RESISTOR

NO

1 W

1.5 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

RECTANGULAR

1

3

FLANGE MOUNT

Other Transistors

2000

150 Cel

SILICON

80 V

SINGLE

R-PSFM-T3

COLLECTOR

Not Qualified

10

260

2SD1418DATR-E

Renesas Electronics

NPN

SINGLE

YES

140 MHz

1 W

1 A

PLASTIC/EPOXY

AMPLIFIER

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

60

150 Cel

SILICON

80 V

TIN BISMUTH

SINGLE

R-PSSO-F3

1

COLLECTOR

Not Qualified

e6

20

260

2SA1156-AZ

Renesas Electronics

PNP

SINGLE

NO

1 W

.5 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

RECTANGULAR

1

3

FLANGE MOUNT

Other Transistors

30

150 Cel

SILICON

400 V

1000 ns

5000 ns

SINGLE

R-PSFM-T3

COLLECTOR

Not Qualified

10

260

2SA1460-AZ

Renesas Electronics

PNP

SINGLE

NO

400 MHz

1 W

1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

RECTANGULAR

1

3

IN-LINE

Other Transistors

60

150 Cel

SILICON

45 V

40 ns

100 ns

SINGLE

R-PSIP-T3

Not Qualified

10

260

2SA1627L

Renesas Electronics

PNP

SINGLE

NO

28 MHz

1 W

1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

RECTANGULAR

1

3

IN-LINE

Other Transistors

40

150 Cel

SILICON

600 V

500 ns

5500 ns

TIN LEAD

SINGLE

R-PSIP-T3

Not Qualified

e0

2SA1627

Renesas Electronics

PNP

SINGLE

NO

28 MHz

1 W

1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

RECTANGULAR

1

3

IN-LINE

Other Transistors

30

150 Cel

SILICON

600 V

500 ns

5500 ns

SINGLE

R-PSIP-T3

1

Not Qualified

2SC2721-LA

Renesas Electronics

NPN

SINGLE

NO

110 MHz

1 W

.7 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

RECTANGULAR

1

3

IN-LINE

Other Transistors

135

150 Cel

SILICON

60 V

SINGLE

R-PSIP-T3

Not Qualified

2SD1366AAC

Renesas Electronics

NPN

SINGLE

YES

240 MHz

1 W

1 A

PLASTIC/EPOXY

AMPLIFIER

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

85

150 Cel

SILICON

25 V

SINGLE

R-PSSO-F3

COLLECTOR

Not Qualified

2SD1974

Renesas Electronics

NPN

SINGLE WITH BUILT-IN DIODE

YES

1 W

.8 A

PLASTIC/EPOXY

AMPLIFIER

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

250

150 Cel

SILICON

25 V

SINGLE

R-PSSO-F3

COLLECTOR

Not Qualified

2SA1156-K

Renesas Electronics

PNP

SINGLE

NO

1 W

.5 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

RECTANGULAR

1

3

FLANGE MOUNT

Other Transistors

100

150 Cel

SILICON

400 V

1000 ns

5000 ns

TIN LEAD

SINGLE

R-PSFM-T3

COLLECTOR

Not Qualified

e0

2SD1421ED

Renesas Electronics

NPN

SINGLE

YES

1 W

1.5 A

PLASTIC/EPOXY

AMPLIFIER

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

60

150 Cel

SILICON

160 V

SINGLE

R-PSSO-F3

COLLECTOR

Not Qualified

2SD1366AA

Renesas Electronics

NPN

SINGLE

YES

240 MHz

1 W

1 A

PLASTIC/EPOXY

AMPLIFIER

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

85

150 Cel

SILICON

20 V

SINGLE

R-PSSO-F3

COLLECTOR

Not Qualified

2SD1471DT

Renesas Electronics

NPN

DARLINGTON

YES

1 W

.3 A

PLASTIC/EPOXY

AMPLIFIER

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

3000

150 Cel

SILICON

30 V

SINGLE

R-PSSO-F3

COLLECTOR

Not Qualified

2SD1843

Renesas Electronics

NPN

DARLINGTON WITH BUILT-IN DIODE AND RESISTOR

NO

1 W

1 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

RECTANGULAR

1

3

IN-LINE

Other Transistors

2000

150 Cel

SILICON

70 V

TIN LEAD

SINGLE

R-PSIP-T3

Not Qualified

e0

2SB1002CH

Renesas Electronics

PNP

SINGLE

YES

150 MHz

1 W

1 A

PLASTIC/EPOXY

AMPLIFIER

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

100

150 Cel

SILICON

50 V

SINGLE

R-PSSO-F3

COLLECTOR

Not Qualified

2SB1026DMTL-E

Renesas Electronics

PNP

SINGLE

YES

140 MHz

1 W

1 A

PLASTIC/EPOXY

AMPLIFIER

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

30

150 Cel

SILICON

100 V

TIN BISMUTH

SINGLE

R-PSSO-F3

1

COLLECTOR

Not Qualified

e6

20

260

2SC2721-KA

Renesas Electronics

NPN

SINGLE

NO

110 MHz

1 W

.7 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

RECTANGULAR

1

3

IN-LINE

Other Transistors

200

150 Cel

SILICON

60 V

SINGLE

R-PSIP-T3

Not Qualified

2SC3733-K

Renesas Electronics

NPN

SINGLE

NO

380 MHz

1 W

1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

RECTANGULAR

1

3

IN-LINE

Other Transistors

100

150 Cel

SILICON

45 V

TIN LEAD

SINGLE

R-PSIP-T3

Not Qualified

e0

2SB1093M

Renesas Electronics

PNP

DARLINGTON WITH BUILT-IN DIODE AND RESISTOR

NO

80 MHz

1 W

1.5 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

RECTANGULAR

1

3

IN-LINE

Other Transistors

2000

150 Cel

SILICON

80 V

TIN LEAD

SINGLE

R-PSIP-T3

Not Qualified

e0

2SB772-E

Renesas Electronics

PNP

SINGLE

NO

80 MHz

1 W

3 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

RECTANGULAR

1

3

FLANGE MOUNT

Other Transistors

200

150 Cel

SILICON

30 V

TIN LEAD

SINGLE

R-PSFM-T3

COLLECTOR

Not Qualified

e0

2SB1261-Z-AZ

Renesas Electronics

PNP

SINGLE

YES

50 MHz

1 W

3 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

2

SMALL OUTLINE

Other Transistors

50

150 Cel

SILICON

60 V

500 ns

2500 ns

SINGLE

R-PSSO-G2

COLLECTOR

Not Qualified

10

260

2SB1002CJTL-E

Renesas Electronics

PNP

SINGLE

YES

150 MHz

1 W

1 A

PLASTIC/EPOXY

AMPLIFIER

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

160

150 Cel

SILICON

50 V

TIN BISMUTH

SINGLE

R-PSSO-F3

1

COLLECTOR

Not Qualified

e6

20

260

KSC2328A

Samsung

NPN

SINGLE

NO

120 MHz

1 W

2 A

PLASTIC/EPOXY

AMPLIFIER

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

100

150 Cel

SILICON

30 V

BOTTOM

O-PBCY-W3

Not Qualified

KSC2331

Samsung

NPN

SINGLE

NO

50 MHz

1 W

.7 A

PLASTIC/EPOXY

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

40

150 Cel

SILICON

60 V

BOTTOM

O-PBCY-W3

Not Qualified

KSC2340

Samsung

NPN

SINGLE

NO

50 MHz

1 W

.1 A

PLASTIC/EPOXY

.5 V

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

30

150 Cel

SILICON

350 V

TIN LEAD

BOTTOM

O-PBCY-T3

Not Qualified

HIGH VOLTAGE

TO-92

e0

KSA931-O

Samsung

PNP

SINGLE

NO

100 MHz

1 W

.7 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

70

150 Cel

SILICON

60 V

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

KSA1370

Samsung

PNP

SINGLE

NO

150 MHz

1 W

.1 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

40

150 Cel

SILICON

200 V

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

KSA931-R

Samsung

PNP

SINGLE

NO

100 MHz

1 W

.7 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

40

150 Cel

SILICON

60 V

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

KSA931-Y

Samsung

PNP

SINGLE

NO

100 MHz

1 W

.7 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

120

150 Cel

SILICON

60 V

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

SS8550

Samsung

PNP

SINGLE

NO

200 MHz

1 W

1.5 A

PLASTIC/EPOXY

AMPLIFIER

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

40

150 Cel

SILICON

25 V

BOTTOM

O-PBCY-W3

Not Qualified

TO-92

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