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

ZTX651

Diodes Incorporated

NPN

SINGLE

NO

175 MHz

1 W

2 A

PLASTIC/EPOXY

WIRE

RECTANGULAR

1

3

IN-LINE

Other Transistors

100

200 Cel

SILICON

60 V

MATTE TIN

SINGLE

R-PSIP-W3

Not Qualified

e3

30

260

MMBT3904LP-7B

Diodes Incorporated

NPN

SINGLE

YES

300 MHz

1 W

.2 A

PLASTIC/EPOXY

.3 V

NO LEAD

RECTANGULAR

1

3

CHIP CARRIER

1 W

30

150 Cel

4 pF

SILICON

40 V

70 ns

-55 Cel

250 ns

NICKEL PALLADIUM GOLD

BOTTOM

R-PBCC-N3

1

COLLECTOR

Not Qualified

HIGH RELIABILITY

e4

30

260

AEC-Q101

ZTX753

Diodes Incorporated

PNP

SINGLE

NO

140 MHz

1 W

2 A

PLASTIC/EPOXY

SWITCHING

WIRE

RECTANGULAR

1

3

IN-LINE

Other Transistors

25

200 Cel

SILICON

100 V

-55 Cel

MATTE TIN

SINGLE

R-PSIP-W3

1

Not Qualified

TO-92

e3

30

260

CECC

BCX53-16,115

NXP Semiconductors

PNP

SINGLE

YES

145 MHz

1 W

1 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

100

150 Cel

SILICON

80 V

TIN

SINGLE

R-PSSO-F3

1

COLLECTOR

Not Qualified

TO-243AA

e3

30

260

AEC-Q101; IEC-60134

SS8050CBU

Onsemi

NPN

SINGLE

NO

190 MHz

1 W

1.5 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

120

150 Cel

SILICON

25 V

TIN

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e3

BC846BLP4-7B

Diodes Incorporated

NPN

SINGLE

YES

300 MHz

1 W

.1 A

PLASTIC/EPOXY

NO LEAD

RECTANGULAR

1

3

CHIP CARRIER

Other Transistors

200

150 Cel

SILICON

65 V

NICKEL PALLADIUM GOLD

BOTTOM

R-PBCC-N3

1

COLLECTOR

HIGH RELIABILITY

e4

30

260

AEC-Q101

SS8050DTA

Onsemi

NPN

SINGLE

NO

190 MHz

1 W

1.5 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

160

150 Cel

SILICON

25 V

MATTE TIN

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e3

BCX5616

Zetex Plc

NPN

SINGLE

YES

150 MHz

1 W

1 A

PLASTIC/EPOXY

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

25

150 Cel

SILICON

80 V

Matte Tin (Sn)

SINGLE

R-PSSO-F3

1

COLLECTOR

Not Qualified

e3

40

260

BCX56-16

NXP Semiconductors

NPN

SINGLE

YES

130 MHz

1 W

1 A

PLASTIC/EPOXY

AMPLIFIER

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

100

150 Cel

SILICON

80 V

Tin (Sn)

SINGLE

R-PSSO-F3

1

COLLECTOR

Not Qualified

TO-243

e3

30

260

SS8050CTA

Onsemi

NPN

SINGLE

NO

190 MHz

1 W

1.5 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

120

150 Cel

SILICON

25 V

MATTE TIN

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e3

MMBT3904LP-7

Diodes Incorporated

NPN

SINGLE

YES

300 MHz

1 W

.2 A

PLASTIC/EPOXY

.3 V

NO LEAD

RECTANGULAR

1

3

CHIP CARRIER

1 W

30

150 Cel

4 pF

SILICON

40 V

70 ns

-55 Cel

250 ns

NICKEL PALLADIUM GOLD

BOTTOM

R-PBCC-N3

1

COLLECTOR

Not Qualified

HIGH RELIABILITY

e4

30

260

AEC-Q101

BCX55-16,115

NXP Semiconductors

NPN

SINGLE

YES

130 MHz

1 W

1 A

PLASTIC/EPOXY

AMPLIFIER

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

100

150 Cel

SILICON

60 V

TIN

SINGLE

R-PSSO-F3

1

COLLECTOR

Not Qualified

TO-243AA

e3

30

260

SS8050DBU

Onsemi

NPN

SINGLE

NO

190 MHz

1 W

1.5 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

160

150 Cel

SILICON

25 V

TIN

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e3

BCX53-16,135

NXP Semiconductors

PNP

SINGLE

YES

145 MHz

1 W

1 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

100

150 Cel

SILICON

80 V

TIN

SINGLE

R-PSSO-F3

1

COLLECTOR

TO-243AA

e3

30

260

AEC-Q101; IEC-60134

MMPQ2907A

Onsemi

PNP

SEPARATE, 4 ELEMENTS

YES

250 MHz

1 W

.6 A

PLASTIC/EPOXY

SWITCHING

1.6 V

GULL WING

RECTANGULAR

4

16

SMALL OUTLINE

Other Transistors

1 W

50

150 Cel

6 pF

SILICON

60 V

-55 Cel

MATTE TIN

DUAL

R-PDSO-G16

3

Not Qualified

MS-012AC

e3

30

260

SS8550DTA

Onsemi

PNP

SINGLE

NO

200 MHz

1 W

1.5 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

160

150 Cel

SILICON

25 V

MATTE TIN

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e3

SS8550DBU

Onsemi

PNP

SINGLE

NO

200 MHz

1 W

1.5 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

160

150 Cel

SILICON

25 V

TIN

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e3

BCX53.16

Continental Device India

PNP

SINGLE

YES

145 MHz

1 W

1 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

100

150 Cel

SILICON

80 V

Tin (Sn)

SINGLE

R-PSSO-F3

1

COLLECTOR

Not Qualified

TO-243AA

e3

30

260

AEC-Q101; IEC-60134

BCX53-16

NXP Semiconductors

PNP

SINGLE

YES

145 MHz

1 W

1 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

100

150 Cel

SILICON

80 V

Tin (Sn)

SINGLE

R-PSSO-F3

1

COLLECTOR

Not Qualified

TO-243AA

e3

30

260

AEC-Q101; IEC-60134

BCX5316

Zetex Plc

PNP

SINGLE

YES

150 MHz

1 W

1 A

PLASTIC/EPOXY

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

25

150 Cel

SILICON

80 V

Matte Tin (Sn)

SINGLE

R-PSSO-F3

1

COLLECTOR

Not Qualified

e3

40

260

ZTX751

Diodes Incorporated

PNP

SINGLE

NO

140 MHz

1 W

2 A

PLASTIC/EPOXY

WIRE

RECTANGULAR

1

3

IN-LINE

Other Transistors

40

200 Cel

SILICON

60 V

MATTE TIN

SINGLE

R-PSIP-W3

Not Qualified

e3

BCX53-16,146

NXP Semiconductors

PNP

SINGLE

YES

145 MHz

1 W

1 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

100

150 Cel

SILICON

80 V

TIN

SINGLE

R-PSSO-F3

1

COLLECTOR

TO-243AA

e3

30

260

AEC-Q101; IEC-60134

BCX54-16,115

NXP Semiconductors

NPN

SINGLE

YES

130 MHz

1 W

1 A

PLASTIC/EPOXY

AMPLIFIER

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

100

150 Cel

SILICON

45 V

TIN

SINGLE

R-PSSO-F3

1

COLLECTOR

Not Qualified

TO-243AA

e3

30

260

ZTX450

Diodes Incorporated

NPN

SINGLE

NO

150 MHz

1 W

1 A

PLASTIC/EPOXY

SWITCHING

WIRE

RECTANGULAR

1

3

IN-LINE

Other Transistors

15

200 Cel

SILICON

45 V

MATTE TIN

SINGLE

R-PSIP-W3

1

Not Qualified

e3

30

260

CECC

ZTX751STZ

Diodes Incorporated

PNP

SINGLE

NO

100 MHz

1 W

2 A

PLASTIC/EPOXY

SWITCHING

WIRE

RECTANGULAR

1

3

IN-LINE

Other Transistors

40

200 Cel

SILICON

60 V

MATTE TIN

SINGLE

R-PSIP-W3

Not Qualified

e3

30

260

CECC

BCP51-16,115

NXP Semiconductors

PNP

SINGLE

YES

115 MHz

1 W

1 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

4

SMALL OUTLINE

Other Transistors

100

150 Cel

SILICON

45 V

TIN

DUAL

R-PDSO-G4

1

COLLECTOR

Not Qualified

e3

30

260

BCX56-10,135

NXP Semiconductors

NPN

SINGLE

YES

180 MHz

1 W

1 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

63

150 Cel

SILICON

80 V

TIN

SINGLE

R-PSSO-F3

1

COLLECTOR

TO-243AA

e3

30

260

AEC-Q101; IEC-60134

ZTX550

Diodes Incorporated

PNP

SINGLE

NO

150 MHz

1 W

1 A

PLASTIC/EPOXY

SWITCHING

WIRE

RECTANGULAR

1

3

IN-LINE

Other Transistors

15

200 Cel

SILICON

45 V

MATTE TIN

SINGLE

R-PSIP-W3

1

Not Qualified

TO-92

e3

30

260

SS8050BBU

Onsemi

NPN

SINGLE

NO

190 MHz

1 W

1.5 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

85

150 Cel

SILICON

25 V

Tin (Sn)

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e3

JANS2N2907AUBC

Microchip Technology

PNP

SINGLE

YES

1 W

.6 A

CERAMIC, METAL-SEALED COFIRED

SWITCHING

NO LEAD

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

50

200 Cel

SILICON

60 V

45 ns

300 ns

TIN LEAD

DUAL

R-CDSO-N3

Qualified

e0

MIL-19500/291

BCP52-16,115

NXP Semiconductors

PNP

SINGLE

YES

115 MHz

1 W

1 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

4

SMALL OUTLINE

Other Transistors

100

150 Cel

SILICON

60 V

TIN

DUAL

R-PDSO-G4

1

COLLECTOR

Not Qualified

e3

30

260

ZTX458

Diodes Incorporated

NPN

SINGLE

NO

50 MHz

1 W

.3 A

PLASTIC/EPOXY

WIRE

RECTANGULAR

1

3

IN-LINE

Other Transistors

100

200 Cel

SILICON

400 V

MATTE TIN

SINGLE

R-PSIP-W3

Not Qualified

e3

30

260

BCX55-16,135

NXP Semiconductors

NPN

SINGLE

YES

130 MHz

1 W

1 A

PLASTIC/EPOXY

AMPLIFIER

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

100

150 Cel

SILICON

60 V

TIN

SINGLE

R-PSSO-F3

1

COLLECTOR

Not Qualified

e3

30

260

DZT5551-13

Diodes Incorporated

NPN

SINGLE

YES

100 MHz

1 W

.6 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

4

SMALL OUTLINE

Other Transistors

30

150 Cel

SILICON

160 V

MATTE TIN

DUAL

R-PDSO-G4

1

COLLECTOR

Not Qualified

e3

30

260

BC63916_D27Z

Fairchild Semiconductor

NPN

SINGLE

NO

100 MHz

1 W

1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

25

150 Cel

SILICON

80 V

TIN SILVER COPPER

BOTTOM

O-PBCY-T3

TO-92

e1

BC63916-D27Z

Onsemi

NPN

SINGLE

NO

100 MHz

1 W

1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

25

150 Cel

SILICON

80 V

MATTE TIN

BOTTOM

O-PBCY-T3

TO-92

e3

BCX54-16,135

NXP Semiconductors

NPN

SINGLE

YES

130 MHz

1 W

1 A

PLASTIC/EPOXY

AMPLIFIER

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

100

150 Cel

SILICON

45 V

TIN

SINGLE

R-PSSO-F3

1

COLLECTOR

Not Qualified

e3

30

260

ZTX605

Diodes Incorporated

NPN

DARLINGTON

NO

150 MHz

1 W

1 A

PLASTIC/EPOXY

WIRE

RECTANGULAR

1

3

IN-LINE

Other Transistors

2000

200 Cel

SILICON

120 V

MATTE TIN

SINGLE

R-PSIP-W3

Not Qualified

e3

30

260

SS8550BBU

Onsemi

PNP

SINGLE

NO

200 MHz

1 W

1.5 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

85

150 Cel

SILICON

25 V

Tin (Sn)

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e3

BCX53-10,115

NXP Semiconductors

PNP

SINGLE

YES

145 MHz

1 W

1 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

63

150 Cel

SILICON

80 V

TIN

SINGLE

R-PSSO-F3

1

COLLECTOR

Not Qualified

TO-243AA

e3

30

260

AEC-Q101; IEC-60134

ZTX451

Diodes Incorporated

NPN

SINGLE

NO

150 MHz

1 W

1 A

PLASTIC/EPOXY

WIRE

RECTANGULAR

1

3

IN-LINE

Other Transistors

10

200 Cel

SILICON

60 V

MATTE TIN

SINGLE

R-PSIP-W3

Not Qualified

e3

30

260

BCP53-16,135

NXP Semiconductors

PNP

SINGLE

YES

145 MHz

1 W

1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

4

SMALL OUTLINE

Other Transistors

1.5 W

100

150 Cel

SILICON

80 V

TIN

DUAL

R-PDSO-G4

1

COLLECTOR

Not Qualified

e3

30

260

AEC-Q101; IEC-60134

SS8550CBU

Onsemi

PNP

SINGLE

NO

200 MHz

1 W

1.5 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

120

150 Cel

SILICON

25 V

TIN

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e3

SS8550CTA

Onsemi

PNP

SINGLE

NO

200 MHz

1 W

1.5 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

120

150 Cel

SILICON

25 V

MATTE TIN

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e3

ZTX601

Diodes Incorporated

NPN

DARLINGTON

NO

250 MHz

1 W

1 A

PLASTIC/EPOXY

WIRE

RECTANGULAR

1

3

IN-LINE

Other Transistors

1000

200 Cel

SILICON

160 V

MATTE TIN

SINGLE

R-PSIP-W3

Not Qualified

e3

30

260

JANSR2N3700

Microchip Technology

NPN

SINGLE

NO

1 W

1 A

METAL

.5 V

WIRE

ROUND

1

3

CYLINDRICAL

.5 W

15

200 Cel

12 pF

SILICON

80 V

-65 Cel

BOTTOM

O-MBCY-W3

COLLECTOR

Qualified

HIGH RELIABILITY

TO-206AA

MIL-19500; RH - 100K Rad(Si)

ZTX705

Diodes Incorporated

PNP

DARLINGTON

NO

160 MHz

1 W

1 A

PLASTIC/EPOXY

SWITCHING

WIRE

RECTANGULAR

1

3

IN-LINE

Other Transistors

2000

200 Cel

SILICON

120 V

MATTE TIN

SINGLE

R-PSIP-W3

Not Qualified

e3

30

260

FCX495TA

Diodes Incorporated

NPN

SINGLE

YES

100 MHz

1 W

1 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

100

150 Cel

SILICON

150 V

MATTE TIN

SINGLE

R-PSSO-F3

1

COLLECTOR

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