1 A Small Signal Bipolar Junction Transistors (BJT) 2,400+

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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

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

FMMT491AQTA

Diodes Incorporated

NPN

SINGLE

YES

150 MHz

1 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

35

SILICON

40 V

MATTE TIN

DUAL

R-PDSO-G3

1

HIGH RELIABILITY

e3

30

260

AEC-Q101

BCX54-16TA

Zetex Plc

NPN

SINGLE

YES

150 MHz

1 A

PLASTIC/EPOXY

SWITCHING

.5 V

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

100

150 Cel

15 pF

SILICON

45 V

SINGLE

R-PSSO-F3

COLLECTOR

Not Qualified

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

2N3019E3

Microchip Technology

NPN

SINGLE

NO

100 MHz

1 A

METAL

WIRE

ROUND

1

3

CYLINDRICAL

15

SILICON

80 V

BOTTOM

O-MBCY-W3

TO-5

UFMMT593TA

Diodes Incorporated

PNP

SINGLE

YES

50 MHz

1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

50

SILICON

100 V

DUAL

R-PDSO-G3

Not Qualified

NOT SPECIFIED

NOT SPECIFIED

BCP56-16,135

NXP Semiconductors

NPN

SINGLE

YES

180 MHz

1.35 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

JANTX2N3440

Microchip Technology

NPN

SINGLE

NO

15 MHz

5 W

1 A

METAL

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

40

200 Cel

SILICON

250 V

1000 ns

10000 ns

TIN LEAD

BOTTOM

O-MBCY-W3

COLLECTOR

Qualified

TO-205AD

e0

MIL-19500

DNBT8105-7

Diodes Incorporated

NPN

SINGLE

YES

150 MHz

.6 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

HIGH RELIABILITY

e3

30

260

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

ZTX550STZ

Diodes Incorporated

PNP

SINGLE

NO

150 MHz

1 A

PLASTIC/EPOXY

SWITCHING

WIRE

RECTANGULAR

1

3

IN-LINE

15

SILICON

45 V

MATTE TIN

SINGLE

R-PSIP-W3

Not Qualified

e3

30

260

JAN2N3439UA

Microchip Technology

NPN

SINGLE

YES

5 W

1 A

CERAMIC, METAL-SEALED COFIRED

NO LEAD

RECTANGULAR

1

4

SMALL OUTLINE

Other Transistors

40

200 Cel

SILICON

350 V

1000 ns

10000 ns

GOLD OVER NICKEL

DUAL

R-CDSO-N4

COLLECTOR

Qualified

e4

MIL-19500

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

ZTX601B

Diodes Incorporated

NPN

DARLINGTON

NO

250 MHz

1 A

PLASTIC/EPOXY

WIRE

RECTANGULAR

1

3

IN-LINE

Other Transistors

5000

200 Cel

SILICON

160 V

MATTE TIN

SINGLE

R-PSIP-W3

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

JANTXV2N3440

Microchip Technology

NPN

SINGLE

NO

15 MHz

5 W

1 A

METAL

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

40

200 Cel

SILICON

250 V

1000 ns

10000 ns

TIN LEAD

BOTTOM

O-MBCY-W3

COLLECTOR

Qualified

TO-205AD

e0

MIL-19500

JAN2N3440L

Microchip Technology

NPN

SINGLE

NO

.8 W

1 A

METAL

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

40

200 Cel

SILICON

250 V

1000 ns

10000 ns

TIN LEAD

BOTTOM

O-MBCY-W3

COLLECTOR

Qualified

TO-5

e0

MIL-19500

BCP69-16,115

NXP Semiconductors

PNP

SINGLE

YES

40 MHz

1.4 W

1 A

PLASTIC/EPOXY

SWITCHING

.5 V

GULL WING

RECTANGULAR

1

4

SMALL OUTLINE

Other Transistors

100

150 Cel

SILICON

20 V

TIN

DUAL

R-PDSO-G4

1

COLLECTOR

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)

ZTX450M1

Diodes Incorporated

NPN

SINGLE

YES

150 MHz

1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

15

SILICON

45 V

SINGLE

R-PSSO-G3

Not Qualified

NOT SPECIFIED

NOT SPECIFIED

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

BCX52-16,115

NXP Semiconductors

PNP

SINGLE

YES

145 MHz

1 A

PLASTIC/EPOXY

AMPLIFIER

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

100

150 Cel

SILICON

60 V

TIN

SINGLE

R-PSSO-F3

1

COLLECTOR

Not Qualified

TO-243

e3

30

260

ZTX450STOA

Diodes Incorporated

NPN

SINGLE

NO

150 MHz

1 A

PLASTIC/EPOXY

SWITCHING

WIRE

RECTANGULAR

1

3

IN-LINE

15

SILICON

45 V

MATTE TIN

SINGLE

R-PSIP-W3

Not Qualified

e3

NOT SPECIFIED

NOT SPECIFIED

CECC

ZTX450STOB

Diodes Incorporated

NPN

SINGLE

NO

150 MHz

1 A

PLASTIC/EPOXY

SWITCHING

WIRE

RECTANGULAR

1

3

IN-LINE

15

SILICON

45 V

MATTE TIN

SINGLE

R-PSIP-W3

Not Qualified

e3

NOT SPECIFIED

NOT SPECIFIED

CECC

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

ZTX450-AP

Micro Commercial Components

NPN

SINGLE

NO

150 MHz

1 A

PLASTIC/EPOXY

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

15

150 Cel

SILICON

45 V

MATTE TIN

BOTTOM

O-PBCY-T3

1

Not Qualified

TO-92

e3

10

260

ZTX450Q

Diodes Incorporated

NPN

SINGLE

NO

150 MHz

1 A

PLASTIC/EPOXY

SWITCHING

WIRE

RECTANGULAR

1

3

IN-LINE

15

SILICON

45 V

Matte Tin (Sn)

SINGLE

R-PSIP-W3

Not Qualified

e3

NOT SPECIFIED

NOT SPECIFIED

CECC

ZTX601BSTZ

Diodes Incorporated

NPN

DARLINGTON

NO

150 MHz

1 A

PLASTIC/EPOXY

SWITCHING

WIRE

RECTANGULAR

1

3

IN-LINE

5000

SILICON

160 V

MATTE TIN

SINGLE

R-PSIP-W3

Not Qualified

e3

30

260

CECC

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

SBSP52T1G

Onsemi

NPN

DARLINGTON

YES

1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

4

SMALL OUTLINE

2000

SILICON

80 V

MATTE TIN

DUAL

R-PDSO-G4

1

COLLECTOR

TO-261AA

e3

30

260

FMMT493-TP

Micro Commercial Components

NPN

SINGLE

YES

150 MHz

.25 W

1 A

PLASTIC/EPOXY

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

10

260

KSA1013YTA

Onsemi

PNP

SINGLE

NO

50 MHz

.9 W

1 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

160

150 Cel

SILICON

160 V

MATTE TIN

BOTTOM

O-PBCY-T3

Not Qualified

e3

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

BCX54,115

NXP Semiconductors

NPN

SINGLE

YES

130 MHz

2 W

1 A

PLASTIC/EPOXY

AMPLIFIER

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

40

150 Cel

SILICON

45 V

TIN

SINGLE

R-PSSO-F3

1

COLLECTOR

Not Qualified

TO-243AA

e3

30

260

ZTX550STOA

Diodes Incorporated

PNP

SINGLE

NO

150 MHz

1 A

PLASTIC/EPOXY

SWITCHING

WIRE

RECTANGULAR

1

3

IN-LINE

15

SILICON

45 V

MATTE TIN

SINGLE

R-PSIP-W3

1

Not Qualified

e3

260

ZTX550STOB

Diodes Incorporated

PNP

SINGLE

NO

150 MHz

1 A

PLASTIC/EPOXY

SWITCHING

WIRE

RECTANGULAR

1

3

IN-LINE

15

SILICON

45 V

MATTE TIN

SINGLE

R-PSIP-W3

Not Qualified

e3

10

260

ZTX601BSTOA

Diodes Incorporated

NPN

DARLINGTON

NO

150 MHz

1 A

PLASTIC/EPOXY

SWITCHING

WIRE

RECTANGULAR

1

3

IN-LINE

5000

SILICON

160 V

MATTE TIN

SINGLE

R-PSIP-W3

1

Not Qualified

e3

260

CECC

2N5416

Microchip Technology

PNP

SINGLE

NO

10 W

1 A

METAL

SWITCHING

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

30

200 Cel

SILICON

300 V

1000 ns

-65 Cel

10000 ns

GOLD

BOTTOM

O-MBCY-W3

COLLECTOR

Not Qualified

HIGH RELIABILITY

TO-5

e4

FMMT493QTA

Diodes Incorporated

NPN

SINGLE

YES

150 MHz

.5 W

1 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

20

150 Cel

SILICON

100 V

MATTE TIN

DUAL

R-PDSO-G3

1

HIGH RELIABILITY

e3

30

260

AEC-Q101

BCP55-16F

Nexperia

NPN

SINGLE

YES

180 MHz

1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

4

SMALL OUTLINE

100

SILICON

60 V

TIN

DUAL

R-PDSO-G4

1

COLLECTOR

e3

30

260

AEC-Q101; IEC-60134

BCP69-25,115

NXP Semiconductors

PNP

SINGLE

YES

40 MHz

1 A

PLASTIC/EPOXY

SWITCHING

.5 V

GULL WING

RECTANGULAR

1

4

SMALL OUTLINE

Other Transistors

160

150 Cel

SILICON

20 V

TIN

DUAL

R-PDSO-G4

1

COLLECTOR

Not Qualified

e3

30

260

BCX53,115

NXP Semiconductors

PNP

SINGLE

YES

145 MHz

2 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

ZTX453

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

100 V

MATTE TIN

SINGLE

R-PSIP-W3

Not Qualified

e3

30

260

JANSR2N3700UB

Microchip Technology

NPN

SINGLE

YES

.5 W

1 A

CERAMIC, METAL-SEALED COFIRED

.5 V

NO LEAD

RECTANGULAR

1

3

SMALL OUTLINE

.5 W

15

200 Cel

12 pF

SILICON

80 V

-65 Cel

DUAL

R-CDSO-N3

Qualified

HIGH RELIABILITY

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

BC517/D74Z

National Semiconductor

NPN

DARLINGTON

NO

1 A

PLASTIC/EPOXY

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

SILICON

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

BCP69-25,135

NXP Semiconductors

PNP

SINGLE

YES

40 MHz

1.4 W

1 A

PLASTIC/EPOXY

SWITCHING

.5 V

GULL WING

RECTANGULAR

1

4

SMALL OUTLINE

Other Transistors

160

150 Cel

SILICON

20 V

TIN

DUAL

R-PDSO-G4

1

COLLECTOR

Not Qualified

e3

30

260

JANTX2N3439

Microchip Technology

NPN

SINGLE

NO

15 MHz

5 W

1 A

METAL

WIRE

ROUND

1

3

CYLINDRICAL

Other Transistors

40

200 Cel

SILICON

350 V

1000 ns

10000 ns

TIN LEAD

BOTTOM

O-MBCY-W3

COLLECTOR

Qualified

TO-205AD

e0

MIL-19500

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