SINGLE WITH BUILT-IN RESISTOR Small Signal Bipolar Junction Transistors (BJT) 2,400+

Reset All
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

PDTA114EQA

NXP Semiconductors

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

180 MHz

.1 A

PLASTIC/EPOXY

SWITCHING

NO LEAD

RECTANGULAR

1

3

SMALL OUTLINE

30

SILICON

50 V

TIN

DUAL

R-PDSO-N3

1

COLLECTOR

BUILT IN BIAS RESISTANCE RATIO IS 1

e3

30

260

AEC-Q101; IEC-60134

PDTA115EE

NXP Semiconductors

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

.15 W

.02 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

80

150 Cel

SILICON

50 V

Tin (Sn)

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 1

e3

30

260

PDTA123ET,215

NXP Semiconductors

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

.25 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

30

150 Cel

SILICON

50 V

TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 1

TO-236AB

e3

30

260

PDTC124ET,235

NXP Semiconductors

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

100 MHz

.25 W

.1 A

PLASTIC/EPOXY

SWITCHING

.3 V

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

60

150 Cel

3.5 pF

SILICON

50 V

TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 1

e3

30

260

PDTC123TT

NXP Semiconductors

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

.25 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

30

150 Cel

SILICON

50 V

Tin (Sn)

DUAL

R-PDSO-G3

1

Not Qualified

e3

30

260

PDTA123YK

NXP Semiconductors

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

.25 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

35

SILICON

50 V

Tin (Sn)

DUAL

R-PDSO-G3

Not Qualified

BUILT IN BIAS RESISTOR RATIO IS 4.5

TO-236

e3

PDTA143ZT,215

NXP Semiconductors

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

.25 W

.1 A

PLASTIC/EPOXY

SWITCHING

.3 V

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

.25 W

100

150 Cel

5 pF

SILICON

50 V

TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 10

TO-236AB

e3

30

260

PDTC143ZKT/R

NXP Semiconductors

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

.1 A

PLASTIC/EPOXY

SWITCHING

.3 V

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

.25 W

100

150 Cel

3.5 pF

SILICON

50 V

TIN

DUAL

R-PDSO-G3

Not Qualified

BUILT IN BIAS RESISTANCE RATIO IS 10

TO-236

e3

PDTC123YK,115

NXP Semiconductors

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

.25 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signals

35

SILICON

50 V

TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT IN BIAS RESISTOR RATIO IS 4.5

TO-236

e3

PDTC114TU

NXP Semiconductors

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

200

150 Cel

SILICON

50 V

Tin (Sn)

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR

e3

30

260

PDTC115EM

NXP Semiconductors

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

.25 W

.1 A

PLASTIC/EPOXY

SWITCHING

NO LEAD

RECTANGULAR

1

3

CHIP CARRIER

BIP General Purpose Small Signal

80

150 Cel

SILICON

50 V

Tin (Sn)

BOTTOM

R-PBCC-N3

1

COLLECTOR

Not Qualified

BUILT IN BIAS RESISTANCE RATIO IS 1

e3

30

260

PDTA124XT,215

NXP Semiconductors

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

.25 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

80

150 Cel

SILICON

50 V

TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 2.13

TO-236AB

e3

30

260

PDTA143EM

NXP Semiconductors

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

.25 W

.1 A

PLASTIC/EPOXY

SWITCHING

NO LEAD

RECTANGULAR

1

3

CHIP CARRIER

BIP General Purpose Small Signal

30

150 Cel

SILICON

50 V

Tin (Sn)

BOTTOM

R-PBCC-N3

1

COLLECTOR

Not Qualified

BUILT-IN BIAS RESISTOR RATIO 1

e3

30

260

PDTA143EK

NXP Semiconductors

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

.25 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

30

SILICON

50 V

MATTE TIN

DUAL

R-PDSO-G3

Not Qualified

BUILT-IN BIAS RESISTOR RATIO 1

TO-236

e3

260

PDTC124ET-TAPE-13

NXP Semiconductors

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

100 MHz

.03 A

PLASTIC/EPOXY

SWITCHING

.3 V

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

56

150 Cel

3.5 pF

SILICON

50 V

DUAL

R-PDSO-G3

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 1

PDTA144ET

NXP Semiconductors

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

100 MHz

.25 W

.1 A

PLASTIC/EPOXY

SWITCHING

.3 V

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

80

150 Cel

5 pF

SILICON

50 V

Tin (Sn)

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO 1

TO-263AB

e3

30

260

PDTC123JE

NXP Semiconductors

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

.15 W

.1 A

PLASTIC/EPOXY

SWITCHING

.3 V

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

.15 W

100

150 Cel

3.5 pF

SILICON

50 V

Tin (Sn)

DUAL

R-PDSO-G3

1

Not Qualified

BUILT IN BIAS RESISTANCE RATIO IS 21

e3

30

260

PDTA124EEFT/R

NXP Semiconductors

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

.1 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

60

SILICON

50 V

TIN

DUAL

R-PDSO-F3

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 1

e3

PDTC124TT,215

NXP Semiconductors

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

.25 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

100

150 Cel

SILICON

50 V

TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR

TO-236AB

e3

30

260

PDTA123TS

NXP Semiconductors

PNP

SINGLE WITH BUILT-IN RESISTOR

NO

.5 W

.1 A

PLASTIC/EPOXY

SWITCHING

THROUGH-HOLE

ROUND

1

3

CYLINDRICAL

BIP General Purpose Small Signal

30

SILICON

50 V

BOTTOM

O-PBCY-T3

Not Qualified

BUILT-IN BIAS RESISTOR

TO-92

PDTC123ETTRL

NXP Semiconductors

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

30

150 Cel

SILICON

50 V

TIN

DUAL

R-PDSO-G3

Not Qualified

BUILT IN BIAS RESISTOR RATIO IS 1

e3

PDTC124ETTRL

NXP Semiconductors

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

60

150 Cel

SILICON

50 V

TIN

DUAL

R-PDSO-G3

Not Qualified

BUILT IN BIAS RESISTOR RATIO IS 1

e3

PDTC113ET

NXP Semiconductors

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

.25 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

30

150 Cel

SILICON

50 V

DUAL

R-PDSO-G3

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 1

TO-236AB

PDTC323TK

NXP Semiconductors

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

.25 W

.5 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

100

SILICON

15 V

Tin (Sn)

DUAL

R-PDSO-G3

Not Qualified

BUILT-IN BIAS RESISTOR

TO-236

e3

PDTA113ET,215

NXP Semiconductors

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

.25 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

30

150 Cel

SILICON

50 V

TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT IN BIAS RESISTOR RATIO IS 1

TO-236AB

e3

30

260

Q62702-C2263

Infineon Technologies

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

200 MHz

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

70

150 Cel

SILICON

50 V

DUAL

R-PDSO-G3

BUILT-IN BIAS RESISTOR RATIO IS 4.7

Q62702-C2256

Infineon Technologies

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

130 MHz

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

30

150 Cel

SILICON

50 V

DUAL

R-PDSO-G3

BUILT-IN BIAS RESISTOR RATIO IS 1

BCR103

Infineon Technologies

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

140 MHz

.2 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

20

150 Cel

SILICON

50 V

MATTE TIN

DUAL

R-PDSO-G3

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 1

e3

BCR523

Infineon Technologies

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

100 MHz

.5 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

6

SMALL OUTLINE

BIP General Purpose Small Signal

70

150 Cel

SILICON

50 V

DUAL

R-PDSO-G6

1

Not Qualified

BUILT IN BIAS RESISTOR RATIO IS 0.1

NOT SPECIFIED

NOT SPECIFIED

BCR569-E6327

Infineon Technologies

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

150 MHz

.33 W

.5 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

120

SILICON

50 V

MATTE TIN

DUAL

R-PDSO-G3

Not Qualified

e3

260

BCR142F

Infineon Technologies

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

150 MHz

.25 W

.1 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

70

SILICON

50 V

MATTE TIN

DUAL

R-PDSO-F3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 2.14

e3

BCR198E6433

Infineon Technologies

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

190 MHz

.2 W

.07 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

70

SILICON

50 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 1

e3

260

BCR169L3

Infineon Technologies

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

200 MHz

.25 W

.1 A

UNSPECIFIED

SWITCHING

NO LEAD

RECTANGULAR

1

3

CHIP CARRIER

BIP General Purpose Small Signal

120

SILICON

50 V

MATTE TIN

BOTTOM

R-XBCC-N3

COLLECTOR

Not Qualified

BUILT-IN BIAS RESISTOR

e3

BCR555-E6327

Infineon Technologies

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

150 MHz

.33 W

.5 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

70

SILICON

50 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 4.545

e3

260

BCR141E6433

Infineon Technologies

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

130 MHz

.25 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

50

SILICON

50 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 1

e3

260

BCR108WH6433

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

BUILT-IN BIAS RESISTOR RATIO IS 21.36

AEC-Q101

BCR555-E6433

Infineon Technologies

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

150 MHz

.33 W

.5 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

70

SILICON

50 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 4.545

e3

260

BCR555

Infineon Technologies

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

150 MHz

.5 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

70

150 Cel

SILICON

50 V

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO 0.22

NOT SPECIFIED

NOT SPECIFIED

BCR158W

Infineon Technologies

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

200 MHz

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

70

150 Cel

SILICON

50 V

Tin (Sn)

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 21.36

e3

NOT SPECIFIED

NOT SPECIFIED

BCR553E6433

Infineon Technologies

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

150 MHz

.33 W

.5 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

40

SILICON

50 V

Matte Tin (Sn)

DUAL

R-PDSO-G3

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 1

e3

BCR196L3

Infineon Technologies

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

150 MHz

.25 W

.07 A

UNSPECIFIED

SWITCHING

NO LEAD

RECTANGULAR

1

3

CHIP CARRIER

BIP General Purpose Small Signal

50

SILICON

50 V

MATTE TIN

BOTTOM

R-XBCC-N3

COLLECTOR

Not Qualified

BUILT-IN BIAS RESISTOR RATIO 0.47

e3

BCR192E6433

Infineon Technologies

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

200 MHz

.2 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

70

SILICON

50 V

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 2.1363

260

BCR146W-E6327

Infineon Technologies

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

150 MHz

.25 W

.07 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

50

SILICON

50 V

MATTE TIN

DUAL

R-PDSO-G3

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 0.468

e3

BCR129T

Infineon Technologies

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

150 MHz

.25 W

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

120

SILICON

50 V

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR

BCR198L3

Infineon Technologies

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

190 MHz

.25 W

.07 A

UNSPECIFIED

SWITCHING

NO LEAD

RECTANGULAR

1

3

CHIP CARRIER

BIP General Purpose Small Signal

70

SILICON

50 V

MATTE TIN

BOTTOM

R-XBCC-N3

COLLECTOR

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 1

e3

BCR571-E6327

Infineon Technologies

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

150 MHz

.5 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

20

SILICON

50 V

MATTE TIN

DUAL

R-PDSO-G3

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 1

e3

BCR158

Infineon Technologies

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

200 MHz

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

70

150 Cel

SILICON

50 V

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 21.36

NOT SPECIFIED

NOT SPECIFIED

BCR112W

Infineon Technologies

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

140 MHz

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

20

150 Cel

SILICON

50 V

Tin (Sn)

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 1

e3

NOT SPECIFIED

NOT SPECIFIED

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