SINGLE WITH BUILT-IN RESISTOR Small Signal Bipolar Junction Transistors (BJT) 422

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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

DDTC143FKA-7-F

Diodes Incorporated

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

250 MHz

.2 W

.1 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

68

150 Cel

SILICON

50 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 4.68

e3

30

260

DDTC143XKA-7-F

Diodes Incorporated

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

250 MHz

.2 W

.1 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

30

150 Cel

SILICON

50 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 2.13

e3

30

260

DDTC143ZKA-7-F

Diodes Incorporated

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

250 MHz

.2 W

.1 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

80

150 Cel

SILICON

50 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 10

e3

30

260

DDTC144EKA-7-F

Diodes Incorporated

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

250 MHz

.2 W

.1 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

68

150 Cel

SILICON

50 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT IN BIAS RESISTOR RATIO IS 1

e3

30

260

DDTC144VKA-7-F

Diodes Incorporated

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

250 MHz

.2 W

.03 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

33

150 Cel

SILICON

50 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 0.21

e3

30

260

DDTC144WE-7-F

Diodes Incorporated

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

250 MHz

.15 W

.03 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

56

150 Cel

SILICON

50 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 0.47

e3

30

260

DDTC144WKA-7-F

Diodes Incorporated

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

250 MHz

.2 W

.03 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

56

150 Cel

SILICON

50 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 0.47

e3

30

260

DDTD113EU-7-F

Diodes Incorporated

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

200 MHz

.2 W

.5 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

33

150 Cel

SILICON

50 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO 1

e3

30

260

DDTD114EU-7-F

Diodes Incorporated

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

200 MHz

.2 W

.5 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

56

150 Cel

SILICON

50 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO 1

e3

30

260

DDTD114GC-7-F

Diodes Incorporated

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

200 MHz

.2 W

.5 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

56

150 Cel

SILICON

40 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT IN BIAS RESISTOR

e3

30

260

DDTD114TC-7-F

Diodes Incorporated

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

200 MHz

.2 W

.5 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

100

150 Cel

SILICON

40 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT IN BIAS RESISTOR

e3

30

260

DDTD114TU-7-F

Diodes Incorporated

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

200 MHz

.2 W

.5 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

100

150 Cel

SILICON

40 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR

e3

30

260

DDTD122JC-7-F

Diodes Incorporated

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

200 MHz

.2 W

.5 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

47

150 Cel

SILICON

50 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT IN BIAS RESISTOR RATIO IS 21.36

e3

30

260

DDTD123EU-7-F

Diodes Incorporated

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

200 MHz

.2 W

.5 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

39

150 Cel

SILICON

50 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO 1

e3

30

260

DDTD123YU-7-F

Diodes Incorporated

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

200 MHz

.2 W

.5 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

56

150 Cel

SILICON

50 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO 4.54

e3

30

260

DDTD133HC-7-F

Diodes Incorporated

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

200 MHz

.2 W

.5 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

56

150 Cel

SILICON

50 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT IN BIAS RESISTOR RATIO IS 3.03

e3

30

260

DDTD143EC-7-F

Diodes Incorporated

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

200 MHz

.2 W

.5 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

47

150 Cel

SILICON

50 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT IN BIAS RESISTOR RATIO IS 1

e3

30

260

DDTD143EU-7-F

Diodes Incorporated

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

200 MHz

.2 W

.5 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

47

150 Cel

SILICON

50 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO 1

e3

30

260

DDTD143TC-7-F

Diodes Incorporated

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

200 MHz

.2 W

.5 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

100

150 Cel

SILICON

40 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT IN BIAS RESISTOR

e3

30

260

DDTD143TU-7-F

Diodes Incorporated

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

200 MHz

.2 W

.5 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

100

150 Cel

SILICON

40 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR

e3

30

260

DDTA115EE-7-F

Diodes Incorporated

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

250 MHz

.15 W

.02 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signals

82

150 Cel

SILICON

50 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 1

e3

30

260

DDTA123EE-7-F

Diodes Incorporated

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

250 MHz

.15 W

.1 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signals

20

150 Cel

SILICON

50 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 1

e3

30

260

DDTA124EE-7-F

Diodes Incorporated

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

250 MHz

.15 W

.03 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signals

56

150 Cel

SILICON

50 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 1

e3

30

260

DTC144WM3T5G

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 2.1

e3

40

260

DDTB122LC-7-F

Diodes Incorporated

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

200 MHz

.2 W

.5 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

56

150 Cel

SILICON

50 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 45.45

e3

30

260

DDTB122TC-7-F

Diodes Incorporated

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

200 MHz

.2 W

.5 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

100

150 Cel

SILICON

40 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR

e3

30

260

DDTB142JC-7-F

Diodes Incorporated

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

200 MHz

.2 W

.5 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

56

150 Cel

SILICON

50 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 21.28

e3

30

260

DDTB142JU-7-F

Diodes Incorporated

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

200 MHz

.2 W

.5 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

56

150 Cel

SILICON

50 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTANCE RATIO IS 21.28

e3

30

260

DDTB142TC-7-F

Diodes Incorporated

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

200 MHz

.2 W

.5 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

100

150 Cel

SILICON

40 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR

e3

30

260

DDTC122LE-7-F

Diodes Incorporated

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

200 MHz

.15 W

.1 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

56

150 Cel

SILICON

50 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR

e3

30

260

DDTC122LU-7-F

Diodes Incorporated

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

200 MHz

.2 W

.1 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

56

150 Cel

SILICON

50 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT IN BIAS RESISTOR RATIO IS 45.45

e3

30

260

DDTD122LC-7-F

Diodes Incorporated

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

200 MHz

.2 W

.5 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

56

150 Cel

SILICON

40 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT IN BIAS RESISTOR RATIO 45.45

e3

30

260

DDTD122TC-7-F

Diodes Incorporated

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

200 MHz

.2 W

.5 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

100

150 Cel

SILICON

40 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT IN BIAS RESISTOR

e3

30

260

DDTD142TC-7-F

Diodes Incorporated

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

200 MHz

.2 W

.5 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

BIP General Purpose Small Signal

100

150 Cel

SILICON

40 V

MATTE TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT IN BIAS RESISTOR

e3

30

260

MUN5113T1G

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 1

e3

40

260

DTC144WET1G

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

Matte Tin (Sn) - annealed

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 2.1

e3

NOT SPECIFIED

NOT SPECIFIED

MMUN2231LT1G

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

8

150 Cel

SILICON

50 V

Matte Tin (Sn) - annealed

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 1

TO-236

e3

40

260

MUN2111T3G

Onsemi

PNP

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

35

SILICON

50 V

TIN

DUAL

R-PDSO-G3

1

Not Qualified

BUILT-IN BIAS RESISTOR RATIO IS 1

e3

260

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

DRDNB26W-7

Diodes Incorporated

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

200 MHz

.2 W

.6 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

6

SMALL OUTLINE

BIP General Purpose Small Signal

47

150 Cel

SILICON

50 V

MATTE TIN

DUAL

R-PDSO-G6

1

Not Qualified

e3

30

260

DRDPB16W-7

Diodes Incorporated

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

200 MHz

.2 W

.6 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

6

SMALL OUTLINE

BIP General Purpose Small Signal

56

150 Cel

SILICON

50 V

MATTE TIN

DUAL

R-PDSO-G6

1

Not Qualified

e3

30

260

DRDPB26W-7

Diodes Incorporated

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

200 MHz

.2 W

.6 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

6

SMALL OUTLINE

BIP General Purpose Small Signal

47

150 Cel

SILICON

50 V

MATTE TIN

DUAL

R-PDSO-G6

1

Not Qualified

e3

30

260

NSVMUN2236T1G

Onsemi

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

.338 W

.1 A

PLASTIC/EPOXY

SWITCHING

.25 V

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

80

150 Cel

SILICON

50 V

-55 Cel

MATTE TIN

DUAL

R-PDSO-G3

1

BUILT-IN BIAS RESISTOR RATIO IS 1

e3

30

260

AEC-Q101

ADTA114YUAQ-13

Diodes Incorporated

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

250 MHz

.33 W

.1 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

68

150 Cel

SILICON

50 V

-55 Cel

MATTE TIN

DUAL

R-PDSO-G3

BUILT IN BIAS RESISTOR RATIO IS 4.7

e3

260

AEC-Q101; IATF 16949, MIL-STD-202

ADTA124ECAQ-13

Diodes Incorporated

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

250 MHz

.31 W

.1 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

56

150 Cel

SILICON

-55 Cel

MATTE TIN

DUAL

R-PDSO-G3

HIGH RELIABILITY

e3

260

AEC-Q101

ADTC144ECAQ-13

Diodes Incorporated

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

250 MHz

.31 W

.1 A

PLASTIC/EPOXY

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

80

150 Cel

SILICON

50 V

-55 Cel

MATTE TIN

DUAL

R-PDSO-G3

BUILT IN BIAS RESISITOR RATIO IS 1

e3

260

AEC-Q101; IATF 16949, MIL-STD-202

NSVDTA123EM3T5G

Onsemi

PNP

SINGLE WITH BUILT-IN RESISTOR

YES

.1 A

PLASTIC/EPOXY

SWITCHING

FLAT

RECTANGULAR

1

3

SMALL OUTLINE

8

SILICON

50 V

Matte Tin (Sn) - annealed

DUAL

R-PDSO-F3

1

BUILT IN BIAS RESISTANCE RATIO IS 1

e3

30

260

AEC-Q101

RN1406S,LF(D

Toshiba

NPN

SINGLE WITH BUILT-IN RESISTOR

YES

250 MHz

.1 A

PLASTIC/EPOXY

SWITCHING

GULL WING

RECTANGULAR

1

3

SMALL OUTLINE

80

SILICON

50 V

DUAL

R-PDSO-G3

BUILT IN BIAS RESISTANCE RATIO IS 10

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