SINGLE WITH BUILT-IN RESISTOR 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

DTC144ERLRE

Onsemi

NPN

SINGLE WITH BUILT-IN RESISTOR

NO

.1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

80

150 Cel

SILICON

50 V

TIN LEAD

BOTTOM

O-PBCY-T3

Not Qualified

BUILT IN BIAS RESISTOR RATIO IS 1

TO-92

e0

MUN5134T1G

Onsemi

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

.15 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signals

80

SILICON

50 V

Matte Tin (Sn) - annealed

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 2.14

e3

40

260

NSVMUN2212T1G

Onsemi

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

.338 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

60

SILICON

50 V

Matte Tin (Sn) - annealed

DUAL

R-PDSO-G3

1

BUILT-IN BIAS RESISTOR RATIO IS 1

e3

NOT SPECIFIED

NOT SPECIFIED

DTD113ERLRE

Onsemi

NPN

SINGLE WITH BUILT-IN RESISTOR

NO

.1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

3

150 Cel

SILICON

50 V

TIN LEAD

BOTTOM

O-PBCY-T3

Not Qualified

BUILT IN BIAS RESISTOR RATIO IS 1

TO-92

e0

MMUN2213LT1

Onsemi

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

.2 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

80

SILICON

50 V

Tin/Lead (Sn/Pb)

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 1

TO-236AB

e0

30

235

DTC143ZM3T5G

Onsemi

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

.6 W

.1 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

80

150 Cel

SILICON

50 V

Matte Tin (Sn) - annealed

DUAL

R-PDSO-F3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 0.1

e3

40

260

DTC114TXV3T1

Onsemi

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

.3 W

.1 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

160

SILICON

50 V

TIN

DUAL

R-PDSO-F3

1

Not Qualified

BUILT-IN BIAS RESISTOR

e3

30

260

DTA124EXV3T1

Onsemi

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

.3 W

.1 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

60

SILICON

50 V

TIN

DUAL

R-PDSO-F3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 1

e3

30

260

DTC123EET1G

Onsemi

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

.3 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

8

SILICON

50 V

Matte Tin (Sn) - annealed

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 1

e3

40

260

MUN5137T1

Onsemi

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

.202 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

80

SILICON

50 V

Tin/Lead (Sn/Pb)

DUAL

R-PDSO-G3

1

Not Qualified

BUILT IN BIAS RESISTANCE RATIO IS 0.47

e0

30

235

MMUN2113LT1

Onsemi

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

.2 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

80

SILICON

50 V

Tin/Lead (Sn/Pb)

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO 1

TO-236AB

e0

30

235

DTC144E

Onsemi

NPN

SINGLE WITH BUILT-IN RESISTOR

NO

.35 W

.1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

BIP General Purpose Small Signal

80

SILICON

50 V

TIN LEAD

BOTTOM

O-PBCY-T3

Not Qualified

BUILT IN BIAS RESISTOR RATIO IS 1

TO-92

e0

235

NSVMMUN2133LT1G

Onsemi

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

80

SILICON

50 V

Matte Tin (Sn) - annealed

DUAL

R-PDSO-G3

1

BUILT IN BIAS RESISTANCE RATIO IS 10

TO-236AB

e3

NOT SPECIFIED

NOT SPECIFIED

AEC-Q101

MUN5133T1G

Onsemi

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

.31 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signals

80

150 Cel

SILICON

50 V

Matte Tin (Sn) - annealed

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 10

e3

40

260

DTA143ERLRM

Onsemi

PNP

SINGLE WITH BUILT-IN RESISTOR

NO

.35 W

.1 A

PLASTIC/EPOXY

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

BIP General Purpose Small Signal

15

SILICON

50 V

TIN LEAD

BOTTOM

O-PBCY-T3

Not Qualified

BUILT IN BIAS RESISTOR RATIO IS 1

TO-92

e0

235

DTC114YRL

Onsemi

NPN

SINGLE WITH BUILT-IN RESISTOR

NO

.1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

80

150 Cel

SILICON

50 V

TIN LEAD

BOTTOM

O-PBCY-T3

Not Qualified

BUILT IN BIAS RESISTOR RATIO IS 4.7, EUROPEAN PART NUMBER

TO-92

e0

DTA144WET1G

Onsemi

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

.3 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

80

SILICON

50 V

Matte Tin (Sn) - annealed

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 0.47

e3

40

260

SMUN2211T3

Onsemi

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

35

SILICON

50 V

TIN LEAD

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 1

e0

SMMUN2213LT3G

Onsemi

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

80

SILICON

50 V

Matte Tin (Sn) - annealed

DUAL

R-PDSO-G3

1

BUILT IN BIAS RESISTANCE RATIO IS 1

TO-236AB

e3

NOT SPECIFIED

NOT SPECIFIED

AEC-Q101

MMUN2134LT1

Onsemi

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

.2 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

80

SILICON

50 V

TIN LEAD

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO 2.136

TO-236AB

e0

235

DTA143EM3T5G

Onsemi

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

.6 W

.1 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

15

150 Cel

SILICON

50 V

MATTE TIN

DUAL

R-PDSO-F3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 1

e3

30

260

MMUN2230LT3

Onsemi

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

.2 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

3

150 Cel

SILICON

50 V

TIN LEAD

DUAL

R-PDSO-G3

Not Qualified

BUILT IN BIAS RESISTOR RATIO IS 1

TO-236AB

e0

MMUN2111LT3

Onsemi

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

.2 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

35

SILICON

50 V

TIN LEAD

DUAL

R-PDSO-G3

Not Qualified

BUILT-IN BIAS RESISTOR RATIO 1

TO-236AB

e0

235

MUN5232T3

Onsemi

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

15

150 Cel

SILICON

50 V

TIN LEAD

DUAL

R-PDSO-G3

Not Qualified

BUILT IN BIAS RESISTOR RATIO 1

e0

SMMUN2216LT1

Onsemi

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

160

150 Cel

SILICON

50 V

TIN LEAD

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR

TO-236AB

e0

DTA113EM3T5G

Onsemi

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

.6 W

.1 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

3

SILICON

50 V

Matte Tin (Sn) - annealed

DUAL

R-PDSO-F3

1

BUILT IN BIAS RESISTANCE RATIO IS 1

e3

NOT SPECIFIED

NOT SPECIFIED

DTA143TRLRP

Onsemi

PNP

SINGLE WITH BUILT-IN RESISTOR

NO

.35 W

.1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

BIP General Purpose Small Signal

160

SILICON

50 V

TIN LEAD

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e0

235

DTC114TRL

Onsemi

NPN

SINGLE WITH BUILT-IN RESISTOR

NO

.1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

160

150 Cel

SILICON

50 V

TIN LEAD

BOTTOM

O-PBCY-T3

Not Qualified

EUROPEAN PART NUMBER

TO-92

e0

MMUN2241LT3

Onsemi

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

.2 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

160

150 Cel

SILICON

50 V

TIN LEAD

DUAL

R-PDSO-G3

Not Qualified

BUILT-IN BIAS RESISTOR

TO-236AB

e0

MUN5230T1G

Onsemi

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

.15 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

3

150 Cel

SILICON

50 V

Matte Tin (Sn) - annealed

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 1

e3

40

260

MMUN2212LT3G

Onsemi

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

.2 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

60

SILICON

50 V

TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT IN BIAS RESISTOR RATIO IS 1

TO-236AB

e3

260

MMUN2217LT1G

Onsemi

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

.4 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

35

SILICON

50 V

Matte Tin (Sn) - annealed

DUAL

R-PDSO-G3

1

BUILT IN BIAS RESISTANCE RATIO IS 2.13

TO-236AB

e3

NOT SPECIFIED

NOT SPECIFIED

MMUN2234LT3G

Onsemi

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

.4 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

80

SILICON

50 V

TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 2.14

TO-236

e3

260

DTC124EM3T5G

Onsemi

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

.6 W

.1 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

60

150 Cel

SILICON

50 V

Matte Tin (Sn) - annealed

DUAL

R-PDSO-F3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 1

e3

40

260

SMUN2214T1G

Onsemi

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

.338 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

80

SILICON

50 V

Matte Tin (Sn) - annealed

DUAL

R-PDSO-G3

1

BUILT-IN BIAS RESISTOR RATIO IS 4.7

e3

NOT SPECIFIED

NOT SPECIFIED

MMUN2115LT3

Onsemi

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

.2 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

160

150 Cel

SILICON

50 V

TIN LEAD

DUAL

R-PDSO-G3

Not Qualified

BUILT-IN BIAS RESISTOR

TO-236AB

e0

DTA144TM3T5G

Onsemi

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

.6 W

.1 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

100

150 Cel

SILICON

50 V

Matte Tin (Sn) - annealed

DUAL

R-PDSO-F3

1

Not Qualified

BUILT-IN BIAS RESISTOR

e3

40

260

MUN5233T3

Onsemi

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

80

150 Cel

SILICON

50 V

TIN LEAD

DUAL

R-PDSO-G3

Not Qualified

BUILT IN BIAS RESISTOR RATIO 10

e0

DTA114YXV3T1

Onsemi

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

.3 W

.1 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

80

SILICON

50 V

TIN

DUAL

R-PDSO-F3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 4.7

e3

260

DTC143ERL1

Onsemi

NPN

SINGLE WITH BUILT-IN RESISTOR

NO

.1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

15

150 Cel

SILICON

50 V

TIN LEAD

BOTTOM

O-PBCY-T3

Not Qualified

BUILT IN BIAS RESISTOR RATIO IS 1, EUROPEAN PART NUMBER

TO-92

e0

DTA143ERLRA

Onsemi

PNP

SINGLE WITH BUILT-IN RESISTOR

NO

.35 W

.1 A

PLASTIC/EPOXY

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

BIP General Purpose Small Signal

15

SILICON

50 V

TIN LEAD

BOTTOM

O-PBCY-T3

Not Qualified

BUILT IN BIAS RESISTOR RATIO IS 1

TO-92

e0

235

MUN5135T1G

Onsemi

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

.31 W

.1 A

PLASTIC/EPOXY

SWITCHING

.25 V

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

80

150 Cel

SILICON

50 V

-55 Cel

Matte Tin (Sn) - annealed

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 21.36

e3

40

260

DTA114YE

Onsemi

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

.15 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

68

SILICON

50 V

TIN LEAD

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 4.7

e0

235

DTC114YE

Onsemi

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

.15 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

80

SILICON

50 V

TIN LEAD

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 4.761

e0

235

DTA114TRLRP

Onsemi

PNP

SINGLE WITH BUILT-IN RESISTOR

NO

.35 W

.1 A

PLASTIC/EPOXY

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

BIP General Purpose Small Signal

160

SILICON

50 V

TIN LEAD

BOTTOM

O-PBCY-T3

Not Qualified

TO-92

e0

235

MMUN2131LT1G

Onsemi

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

.2 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signals

8

SILICON

50 V

Matte Tin (Sn) - annealed

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO 1

TO-236AB

e3

40

260

DTD113EZL1

Onsemi

NPN

SINGLE WITH BUILT-IN RESISTOR

NO

.1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

3

150 Cel

SILICON

50 V

TIN LEAD

BOTTOM

O-PBCY-T3

Not Qualified

BUILT IN BIAS RESISTOR RATIO IS 1, EUROPEAN PART NUMBER

TO-92

e0

MMUN2113LT3G

Onsemi

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

.4 W

.1 A

PLASTIC/EPOXY

SWITCHING

.25 V

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

80

150 Cel

SILICON

50 V

-55 Cel

Matte Tin (Sn) - annealed

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO 1

TO-236AB

e3

40

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