Small Signal Bipolar Junction Transistors (BJT)

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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

BC556ABU

Onsemi

PNP

SINGLE

NO

150 MHz

.625 W

.1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

110

150 Cel

SILICON

65 V

TIN

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e3

BC557CG

Onsemi

PNP

SINGLE

NO

320 MHz

1.5 W

.1 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

420

150 Cel

SILICON

45 V

-55 Cel

TIN SILVER COPPER

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e1

260

BCR108WE6327

Infineon Technologies

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

170 MHz

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

70

SILICON

50 V

Matte Tin (Sn)

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 21.3636

e3

40

260

SBC857BWT1G

Onsemi

PNP

SINGLE

YES

100 MHz

.15 W

.1 A

PLASTIC/EPOXY

AMPLIFIER

.65 V

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

220

150 Cel

4.5 pF

SILICON

45 V

-55 Cel

MATTE TIN

DUAL

R-PDSO-G3

1

e3

30

260

AEC-Q101

BC847-A

Infineon Technologies

NPN

SINGLE

YES

250 MHz

.1 A

PLASTIC/EPOXY

AMPLIFIER

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

110

150 Cel

SILICON

45 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

LOW NOISE

e3

BC850CW,115

NXP Semiconductors

NPN

SINGLE

YES

100 MHz

.1 A

PLASTIC/EPOXY

AMPLIFIER

.6 V

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

420

150 Cel

3 pF

SILICON

45 V

TIN

DUAL

R-PDSO-G3

1

Not Qualified

LOW NOISE

e3

30

260

BC856W,115

NXP Semiconductors

PNP

SINGLE

YES

100 MHz

.2 W

.1 A

PLASTIC/EPOXY

SWITCHING

.65 V

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

125

150 Cel

5 pF

SILICON

65 V

TIN

DUAL

R-PDSO-G3

1

Not Qualified

e3

30

260

BC857BM,315

NXP Semiconductors

PNP

SINGLE

YES

100 MHz

.43 W

.1 A

PLASTIC/EPOXY

SWITCHING

NO LEAD

RECTANGULAR

1

3

CHIP CARRIER

Other Transistors

220

150 Cel

SILICON

45 V

TIN

BOTTOM

R-PBCC-N3

1

COLLECTOR

Not Qualified

e3

30

260

PBSS5480X,135

NXP Semiconductors

PNP

SINGLE

YES

125 MHz

2.5 W

4 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

200

150 Cel

SILICON

80 V

TIN

SINGLE

R-PSSO-F3

1

COLLECTOR

Not Qualified

TO-243AA

e3

30

260

SMBT3946DW1T1G

Onsemi

NPN AND PNP

SEPARATE, 2 ELEMENTS

YES

300 MHz

.15 W

.2 A

PLASTIC/EPOXY

AMPLIFIER

GULL WING

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-G6

1

e3

30

260

AEC-Q101

2SA812M7-T1B-A

Renesas Electronics

PNP

SINGLE

YES

180 MHz

.2 W

.1 A

PLASTIC/EPOXY

AMPLIFIER

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

300

150 Cel

SILICON

50 V

DUAL

R-PDSO-G3

Not Qualified

NOT SPECIFIED

NOT SPECIFIED

BC846ALT3G

Onsemi

NPN

SINGLE

YES

100 MHz

.3 W

.1 A

PLASTIC/EPOXY

.6 V

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

110

150 Cel

4.5 pF

SILICON

65 V

-55 Cel

Matte Tin (Sn) - annealed

DUAL

R-PDSO-G3

1

Not Qualified

TO-236

e3

40

260

NSVMMBT5401WT1G

Onsemi

PNP

SINGLE

YES

100 MHz

.5 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

50

SILICON

150 V

MATTE TIN

DUAL

R-PDSO-G3

1

e3

30

260

AEC-Q101

BCP53-16TF

Nexperia

PNP

SINGLE

YES

140 MHz

1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

4

SMALL OUTLINE

100

SILICON

80 V

TIN

DUAL

R-PDSO-G4

1

COLLECTOR

e3

30

260

AEC-Q101; IEC-60134

FMMT495TA

Diodes Incorporated

NPN

SINGLE

YES

100 MHz

.5 W

1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

10

150 Cel

SILICON

150 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

e3

30

260

MMBT3906LT1XT

Infineon Technologies

PNP

SINGLE

YES

250 MHz

.2 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

30

150 Cel

SILICON

40 V

70 ns

300 ns

TIN

DUAL

R-PDSO-G3

1

e3

AEC-Q101

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

BCR108E6433HTMA1

Infineon Technologies

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

170 MHz

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

70

SILICON

50 V

DUAL

R-PDSO-G3

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 21.3636

NOT SPECIFIED

NOT SPECIFIED

MMBT2222ARFG

Taiwan Semiconductor

NPN

SINGLE

YES

300 MHz

.6 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

40

SILICON

40 V

35 ns

285 ns

MATTE TIN OVER NICKEL

DUAL

R-PDSO-G3

1

Not Qualified

e3

30

260

BC807DS,115

NXP Semiconductors

PNP

SEPARATE, 2 ELEMENTS

YES

80 MHz

.37 W

.5 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

2

6

SMALL OUTLINE

Other Transistors

40

150 Cel

SILICON

45 V

TIN

DUAL

R-PDSO-G6

1

Not Qualified

e3

30

260

KSC1815YTA

Onsemi

NPN

SINGLE

NO

80 MHz

.4 W

.15 A

PLASTIC/EPOXY

AMPLIFIER

.25 V

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

.4 W

120

125 Cel

3 pF

SILICON

50 V

MATTE TIN

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e3

PN2907ATAR

Onsemi

PNP

SINGLE

NO

200 MHz

.625 W

.8 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

50

150 Cel

SILICON

60 V

45 ns

100 ns

MATTE TIN

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e3

BC847BW

NXP Semiconductors

NPN

SINGLE

YES

100 MHz

.2 W

.1 A

PLASTIC/EPOXY

SWITCHING

.6 V

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

200

150 Cel

3 pF

SILICON

45 V

Tin (Sn)

DUAL

R-PDSO-G3

1

Not Qualified

e3

30

260

MMBT3906LT1H

Onsemi

PNP

SINGLE

YES

250 MHz

.2 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

30

150 Cel

SILICON

40 V

70 ns

-55 Cel

300 ns

MATTE TIN

DUAL

R-PDSO-G3

1

TO-236

e3

30

260

BC846A-7-F

Diodes Incorporated

NPN

SINGLE

YES

300 MHz

.3 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

110

150 Cel

SILICON

65 V

-65 Cel

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

HIGH RELIABILITY

e3

30

260

AEC-Q101

BC847CW-QX

Nexperia

NPN

SINGLE

YES

100 MHz

.2 W

.1 A

PLASTIC/EPOXY

SWITCHING

.4 V

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

420

150 Cel

1.5 pF

SILICON

45 V

-65 Cel

DUAL

R-PDSO-G3

AEC-Q101; IEC-60134

BCR116E6327HTSA1

Infineon Technologies

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

160 MHz

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

70

SILICON

50 V

TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 10

e3

KSA916YTA

Onsemi

PNP

SINGLE

NO

120 MHz

.9 W

.8 A

PLASTIC/EPOXY

AMPLIFIER

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

120

150 Cel

SILICON

120 V

MATTE TIN

BOTTOM

O-PBCY-T3

Not Qualified

e3

BC212-B

Infineon Technologies

PNP

SINGLE

NO

250 MHz

.35 W

.1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

200

150 Cel

SILICON

BOTTOM

O-PBCY-T3

Not Qualified

BCR108S-E6433

Infineon Technologies

NPN

SEPARATE, 2 ELEMENTS WITH BUILT-IN RESISTOR

YES

170 MHz

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

2

6

SMALL OUTLINE

70

SILICON

50 V

MATTE TIN

DUAL

R-PDSO-G6

1

Not Qualified

BUILT IN BIAS RESISTANCE RATIO IS 21.364

e3

260

MMBTA56-7-F

Diodes Incorporated

PNP

SINGLE

YES

50 MHz

.35 W

.5 A

PLASTIC/EPOXY

SWITCHING

.25 V

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

100

150 Cel

SILICON

80 V

-55 Cel

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

e3

30

260

MIL-STD-202

SMMBTA92LT3G

Onsemi

PNP

SINGLE

YES

50 MHz

.3 W

.5 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

25

150 Cel

SILICON

300 V

MATTE TIN

DUAL

R-PDSO-G3

1

TO-236AF

e3

30

260

AEC-Q101

2N3904ZL1G

Onsemi

NPN

SINGLE

NO

300 MHz

.625 W

.2 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

30

150 Cel

SILICON

40 V

70 ns

250 ns

TIN SILVER COPPER

BOTTOM

O-PBCY-T3

Not Qualified

EUROPEAN PART NUMBER

TO-92

e1

260

MBT6429DW1T1G

Onsemi

NPN

SEPARATE, 2 ELEMENTS

YES

100 MHz

.15 W

.2 A

PLASTIC/EPOXY

AMPLIFIER

GULL WING

RECTANGULAR

2

6

SMALL OUTLINE

Other Transistors

500

150 Cel

SILICON

45 V

MATTE TIN

DUAL

R-PDSO-G6

1

Not Qualified

e3

30

260

MMBT3906-HF

Comchip Technology

PNP

SINGLE

YES

250 MHz

.3 W

.2 A

1

Other Transistors

100

150 Cel

10

260

MMBT5401

Onsemi

PNP

SINGLE

YES

100 MHz

.225 W

.6 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

50

150 Cel

SILICON

150 V

-55 Cel

TIN

DUAL

R-PDSO-G3

1

Not Qualified

TO-236AB

e3

30

260

PEMH10,115

NXP Semiconductors

NPN

SEPARATE, 2 ELEMENTS WITH BUILT-IN RESISTOR

YES

.3 W

.1 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

2

6

SMALL OUTLINE

BIP General Purpose Small Signal

100

150 Cel

SILICON

50 V

TIN

DUAL

R-PDSO-F6

1

Not Qualified

BUILT IN BIAS RESISTOR RATIO 21.36

e3

30

260

NSVMMUN2232LT1G

Onsemi

NPN

YES

.4 W

.1 A

1

BIP General Purpose Small Signal

15

SILICON

MATTE TIN

1

e3

30

260

BC846CMTF

Onsemi

NPN

SINGLE

YES

300 MHz

.31 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

420

150 Cel

SILICON

65 V

Tin (Sn)

DUAL

R-PDSO-G3

1

Not Qualified

e3

30

260

BC847BW-QF

Nexperia

NPN

SINGLE

YES

100 MHz

.2 W

.1 A

PLASTIC/EPOXY

SWITCHING

.4 V

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

200

150 Cel

1.5 pF

SILICON

45 V

-65 Cel

TIN

DUAL

R-PDSO-G3

1

e3

30

260

AEC-Q101; IEC-60134

FMMT491TA

Diodes Incorporated

NPN

SINGLE

YES

150 MHz

.5 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

e3

30

260

BCR523E6327HTSA1

Infineon Technologies

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

100 MHz

.5 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

6

SMALL OUTLINE

70

SILICON

50 V

TIN

DUAL

R-PDSO-G6

1

BUILT IN BIAS RESISTOR RATIO IS 0.1

e3

BC857BS,135

NXP Semiconductors

PNP

SEPARATE, 2 ELEMENTS

YES

100 MHz

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

2

6

SMALL OUTLINE

Other Transistors

200

150 Cel

SILICON

45 V

TIN

DUAL

R-PDSO-G6

1

Not Qualified

e3

30

260

BCR533E6327HTSA1

Infineon Technologies

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

100 MHz

.5 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

70

SILICON

50 V

TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 1

e3

MMBT3906-7

Diodes Incorporated

PNP

SINGLE

YES

250 MHz

.3 W

.2 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

Other Transistors

30

150 Cel

SILICON

40 V

70 ns

-55 Cel

300 ns

TIN LEAD

DUAL

R-PDSO-G3

1

Not Qualified

e0

JANTX2N2907AUA

Microchip Technology

PNP

SINGLE

YES

.4 W

.6 A

PLASTIC/EPOXY

SWITCHING

NO LEAD

RECTANGULAR

1

4

SMALL OUTLINE

Other Transistors

100

200 Cel

SILICON

60 V

45 ns

300 ns

TIN LEAD

DUAL

R-PDSO-N4

Qualified

e0

MIL-19500/291

BC547-A

Infineon Technologies

NPN

SINGLE

NO

200 MHz

.625 W

.1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

Other Transistors

110

150 Cel

SILICON

BOTTOM

O-PBCY-T3

Not Qualified

BCX56-10TA

Zetex Plc

NPN

SINGLE

YES

150 MHz

1 A

PLASTIC/EPOXY

SWITCHING

.5 V

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

63

150 Cel

15 pF

SILICON

80 V

SINGLE

R-PSSO-F3

COLLECTOR

Not Qualified

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