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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Onsemi |
PNP |
SINGLE |
YES |
50 MHz |
.15 W |
.5 A |
1 |
Other Transistors |
100 |
150 Cel |
MATTE TIN |
1 |
e3 |
30 |
260 |
||||||||||||||||||||||||||||||
|
NXP Semiconductors |
NPN |
SINGLE |
YES |
100 MHz |
.2 W |
.5 A |
PLASTIC/EPOXY |
SWITCHING |
.7 V |
GULL WING |
RECTANGULAR |
1 |
3 |
SMALL OUTLINE |
Other Transistors |
250 |
150 Cel |
5 pF |
SILICON |
45 V |
Tin (Sn) |
DUAL |
R-PDSO-G3 |
1 |
Not Qualified |
e3 |
30 |
260 |
|||||||||||||||||
|
Nte Electronics |
PNP |
SINGLE |
NO |
100 MHz |
.6 W |
1 A |
PLASTIC/EPOXY |
SWITCHING |
WIRE |
ROUND |
1 |
3 |
CYLINDRICAL |
Other Transistors |
30 |
SILICON |
80 V |
100 ns |
400 ns |
BOTTOM |
O-PBCY-W3 |
Not Qualified |
LOW NOISE |
TO-92 |
NOT SPECIFIED |
NOT SPECIFIED |
|||||||||||||||||||
Texas Instruments |
NPN |
SINGLE |
NO |
70 MHz |
.8 W |
1 A |
METAL |
SWITCHING |
WIRE |
ROUND |
1 |
3 |
CYLINDRICAL |
Other Transistors |
35 |
200 Cel |
SILICON |
BOTTOM |
O-MBCY-W3 |
COLLECTOR |
Not Qualified |
HIGH RELIABILITY |
TO-5 |
NOT SPECIFIED |
NOT SPECIFIED |
|||||||||||||||||||||
|
NXP Semiconductors |
PNP |
SINGLE |
YES |
200 MHz |
.25 W |
.6 A |
PLASTIC/EPOXY |
SWITCHING |
GULL WING |
RECTANGULAR |
1 |
3 |
SMALL OUTLINE |
Other Transistors |
100 |
150 Cel |
SILICON |
60 V |
40 ns |
-65 Cel |
365 ns |
TIN |
DUAL |
R-PDSO-G3 |
1 |
Not Qualified |
TO-236AB |
e3 |
30 |
260 |
IEC-60134 |
||||||||||||||
|
Diodes Incorporated |
PNP |
SINGLE |
YES |
200 MHz |
.15 W |
.6 A |
PLASTIC/EPOXY |
GULL WING |
RECTANGULAR |
1 |
3 |
SMALL OUTLINE |
Other Transistors |
20 |
150 Cel |
SILICON |
40 V |
35 ns |
255 ns |
MATTE TIN |
DUAL |
R-PDSO-G3 |
1 |
Not Qualified |
e3 |
30 |
260 |
||||||||||||||||||
|
Onsemi |
NPN |
SINGLE |
YES |
100 MHz |
.3 W |
.5 A |
PLASTIC/EPOXY |
GULL WING |
RECTANGULAR |
1 |
3 |
SMALL OUTLINE |
Other Transistors |
100 |
150 Cel |
SILICON |
45 V |
Matte Tin (Sn) - annealed |
DUAL |
R-PDSO-G3 |
1 |
TO-236AB |
e3 |
NOT SPECIFIED |
NOT SPECIFIED |
AEC-Q101 |
|||||||||||||||||||
|
Onsemi |
NPN |
SINGLE |
YES |
75 MHz |
.5 W |
2 A |
PLASTIC/EPOXY |
GULL WING |
RECTANGULAR |
1 |
3 |
SMALL OUTLINE |
Other Transistors |
250 |
150 Cel |
SILICON |
60 V |
TIN |
DUAL |
R-PDSO-G3 |
1 |
Not Qualified |
e3 |
30 |
260 |
||||||||||||||||||||
|
Onsemi |
PNP |
SINGLE |
YES |
50 MHz |
1.5 W |
.5 A |
PLASTIC/EPOXY |
.5 V |
GULL WING |
RECTANGULAR |
1 |
4 |
SMALL OUTLINE |
Other Transistors |
40 |
150 Cel |
6 pF |
SILICON |
300 V |
MATTE TIN |
DUAL |
R-PDSO-G4 |
1 |
COLLECTOR |
TO-261AA |
e3 |
30 |
260 |
AEC-Q101 |
||||||||||||||||
|
Nexperia |
PNP |
SINGLE |
YES |
100 MHz |
.1 A |
PLASTIC/EPOXY |
SWITCHING |
NO LEAD |
RECTANGULAR |
1 |
3 |
CHIP CARRIER |
220 |
SILICON |
60 V |
TIN |
BOTTOM |
R-PBCC-N3 |
1 |
COLLECTOR |
e3 |
30 |
260 |
AEC-Q101; IEC-60134 |
|||||||||||||||||||||
|
Leshan Radio |
PNP |
SINGLE |
YES |
100 MHz |
.3 W |
.1 A |
PLASTIC/EPOXY |
GULL WING |
RECTANGULAR |
1 |
3 |
SMALL OUTLINE |
Other Transistors |
220 |
150 Cel |
SILICON |
45 V |
TIN |
DUAL |
R-PDSO-G3 |
1 |
e3 |
|||||||||||||||||||||||
|
Diodes Incorporated |
PNP |
SINGLE |
NO |
100 MHz |
1 W |
2 A |
PLASTIC/EPOXY |
SWITCHING |
WIRE |
RECTANGULAR |
1 |
3 |
IN-LINE |
Other Transistors |
40 |
200 Cel |
SILICON |
60 V |
MATTE TIN |
SINGLE |
R-PSIP-W3 |
Not Qualified |
e3 |
30 |
260 |
CECC |
|||||||||||||||||||
Diodes Incorporated |
PNP |
SINGLE |
NO |
140 MHz |
2 A |
PLASTIC/EPOXY |
SWITCHING |
WIRE |
RECTANGULAR |
1 |
3 |
IN-LINE |
25 |
SILICON |
100 V |
Matte Tin (Sn) |
SINGLE |
R-PSIP-W3 |
Not Qualified |
e3 |
NOT SPECIFIED |
NOT SPECIFIED |
CECC |
|||||||||||||||||||||||
National Semiconductor |
NPN |
SINGLE |
NO |
80 MHz |
.4 W |
.15 A |
PLASTIC/EPOXY |
.3 V |
THROUGH-HOLE |
ROUND |
1 |
3 |
CYLINDRICAL |
Other Transistors |
25 |
125 Cel |
4 pF |
SILICON |
50 V |
Tin/Lead (Sn/Pb) |
BOTTOM |
O-PBCY-T3 |
Not Qualified |
TO-92 |
e0 |
|||||||||||||||||||||
Micro Commercial Components |
SINGLE |
NO |
80 MHz |
.15 A |
PLASTIC/EPOXY |
AMPLIFIER |
THROUGH-HOLE |
ROUND |
1 |
3 |
CYLINDRICAL |
Other Transistors |
120 |
150 Cel |
SILICON |
50 V |
TIN LEAD |
BOTTOM |
O-PBCY-T3 |
Not Qualified |
TO-92 |
e0 |
30 |
240 |
||||||||||||||||||||||
Continental Device India |
NPN |
SINGLE |
NO |
80 MHz |
.4 W |
.15 A |
PLASTIC/EPOXY |
.25 V |
THROUGH-HOLE |
ROUND |
1 |
3 |
CYLINDRICAL |
Other Transistors |
25 |
3 pF |
SILICON |
50 V |
TIN LEAD |
BOTTOM |
O-PBCY-T3 |
Not Qualified |
TO-92 |
e0 |
||||||||||||||||||||||
|
Diodes Incorporated |
NPN |
SINGLE |
YES |
150 MHz |
2 W |
1 A |
PLASTIC/EPOXY |
SWITCHING |
GULL WING |
RECTANGULAR |
1 |
4 |
SMALL OUTLINE |
Other Transistors |
100 |
150 Cel |
SILICON |
60 V |
MATTE TIN |
DUAL |
R-PDSO-G4 |
1 |
COLLECTOR |
HIGH RELIABILITY |
e3 |
30 |
260 |
||||||||||||||||||
|
Diodes Incorporated |
NPN |
SINGLE |
YES |
150 MHz |
2 W |
1 A |
PLASTIC/EPOXY |
SWITCHING |
GULL WING |
RECTANGULAR |
1 |
4 |
SMALL OUTLINE |
Other Transistors |
100 |
150 Cel |
SILICON |
80 V |
MATTE TIN |
DUAL |
R-PDSO-G4 |
1 |
COLLECTOR |
HIGH RELIABILITY |
e3 |
30 |
260 |
||||||||||||||||||
Microchip Technology |
NPN |
SINGLE |
NO |
100 MHz |
.5 W |
1 A |
METAL |
SWITCHING |
.5 V |
WIRE |
ROUND |
1 |
3 |
CYLINDRICAL |
Other Transistors |
1.8 W |
15 |
175 Cel |
12 pF |
SILICON |
80 V |
TIN LEAD |
BOTTOM |
O-MBCY-W3 |
Not Qualified |
TO-206AA |
e0 |
|||||||||||||||||||
|
NXP Semiconductors |
PNP |
SINGLE |
YES |
115 MHz |
1 W |
1 A |
PLASTIC/EPOXY |
GULL WING |
RECTANGULAR |
1 |
4 |
SMALL OUTLINE |
Other Transistors |
100 |
150 Cel |
SILICON |
45 V |
TIN |
DUAL |
R-PDSO-G4 |
1 |
COLLECTOR |
Not Qualified |
e3 |
30 |
260 |
|||||||||||||||||||
|
Onsemi |
NPN |
SINGLE |
YES |
150 MHz |
.225 W |
.5 A |
PLASTIC/EPOXY |
AMPLIFIER |
GULL WING |
RECTANGULAR |
1 |
3 |
SMALL OUTLINE |
Other Transistors |
75 |
150 Cel |
SILICON |
80 V |
MATTE TIN |
DUAL |
R-PDSO-G3 |
1 |
Not Qualified |
TO-236AB |
e3 |
30 |
260 |
||||||||||||||||||
|
Diodes Incorporated |
NPN |
SINGLE |
YES |
300 MHz |
.2 W |
.1 A |
PLASTIC/EPOXY |
SWITCHING |
GULL WING |
RECTANGULAR |
1 |
3 |
SMALL OUTLINE |
Other Transistors |
200 |
150 Cel |
SILICON |
65 V |
MATTE TIN |
DUAL |
R-PDSO-G3 |
1 |
HIGH RELIABILITY |
e3 |
30 |
260 |
AEC-Q101 |
||||||||||||||||||
|
Onsemi |
NPN |
SINGLE |
YES |
100 MHz |
.15 W |
.1 A |
PLASTIC/EPOXY |
AMPLIFIER |
GULL WING |
RECTANGULAR |
1 |
3 |
SMALL OUTLINE |
Other Transistors |
420 |
150 Cel |
SILICON |
45 V |
MATTE TIN |
DUAL |
R-PDSO-G3 |
1 |
Not Qualified |
e3 |
30 |
260 |
|||||||||||||||||||
STMicroelectronics |
PNP |
SINGLE |
YES |
.4 W |
.6 A |
UNSPECIFIED |
SWITCHING |
NO LEAD |
RECTANGULAR |
1 |
3 |
SMALL OUTLINE |
Other Transistors |
100 |
200 Cel |
SILICON |
60 V |
45 ns |
300 ns |
DUAL |
R-XDSO-N3 |
Qualified |
MIL-19500/291M |
|||||||||||||||||||||||
|
Onsemi |
NPN |
SINGLE |
YES |
50 MHz |
1.5 W |
.5 A |
PLASTIC/EPOXY |
AMPLIFIER |
GULL WING |
RECTANGULAR |
1 |
4 |
SMALL OUTLINE |
Other Transistors |
40 |
150 Cel |
SILICON |
300 V |
-55 Cel |
MATTE TIN |
DUAL |
R-PDSO-G4 |
1 |
COLLECTOR |
Not Qualified |
TO-261AA |
e3 |
30 |
260 |
||||||||||||||||
|
Fairchild Semiconductor |
NPN |
SINGLE |
NO |
100 MHz |
1 A |
PLASTIC/EPOXY |
SWITCHING |
THROUGH-HOLE |
ROUND |
1 |
3 |
CYLINDRICAL |
160 |
150 Cel |
SILICON |
45 V |
MATTE TIN |
BOTTOM |
O-PBCY-T3 |
Not Qualified |
TO-92 |
e3 |
|||||||||||||||||||||||
Multicomp Pro |
NPN |
SINGLE |
NO |
210 MHz |
.8 A |
PLASTIC/EPOXY |
AMPLIFIER |
.7 V |
WIRE |
ROUND |
1 |
3 |
CYLINDRICAL |
.625 W |
160 |
150 Cel |
SILICON |
45 V |
-65 Cel |
BOTTOM |
O-PBCY-W3 |
TO-92 |
||||||||||||||||||||||||
|
Diodes Incorporated |
NPN |
SINGLE |
YES |
100 MHz |
.35 W |
.5 A |
PLASTIC/EPOXY |
SWITCHING |
GULL WING |
RECTANGULAR |
1 |
3 |
SMALL OUTLINE |
Other Transistors |
170 |
150 Cel |
SILICON |
45 V |
MATTE TIN |
DUAL |
R-PDSO-G3 |
1 |
HIGH RELIABILITY |
e3 |
30 |
260 |
AEC-Q101 |
||||||||||||||||||
|
Nexperia |
PNP |
SINGLE |
YES |
140 MHz |
1 A |
PLASTIC/EPOXY |
SWITCHING |
GULL WING |
RECTANGULAR |
1 |
4 |
SMALL OUTLINE |
63 |
SILICON |
80 V |
TIN |
DUAL |
R-PDSO-G4 |
1 |
COLLECTOR |
e3 |
30 |
260 |
AEC-Q101; IEC-60134 |
|||||||||||||||||||||
Microchip Technology |
PNP |
SINGLE |
NO |
200 MHz |
.4 W |
.6 A |
METAL |
SWITCHING |
WIRE |
ROUND |
1 |
3 |
CYLINDRICAL |
Other Transistors |
100 |
175 Cel |
SILICON |
60 V |
45 ns |
300 ns |
TIN LEAD |
BOTTOM |
O-MBCY-W3 |
COLLECTOR |
Qualified |
TO-206AA |
e0 |
MIL-19500/291M |
||||||||||||||||||
Microchip Technology |
NPN |
SINGLE |
YES |
1 A |
CERAMIC, METAL-SEALED COFIRED |
SWITCHING |
NO LEAD |
RECTANGULAR |
1 |
3 |
SMALL OUTLINE |
15 |
175 Cel |
SILICON |
80 V |
TIN LEAD |
DUAL |
R-CDSO-N3 |
Qualified |
HIGH RELIABILITY |
e0 |
MIL-19500 |
||||||||||||||||||||||||
|
Leshan Radio |
NPN |
SINGLE |
YES |
300 MHz |
.3 W |
.2 A |
PLASTIC/EPOXY |
GULL WING |
RECTANGULAR |
1 |
3 |
SMALL OUTLINE |
Other Transistors |
30 |
150 Cel |
SILICON |
40 V |
70 ns |
250 ns |
TIN |
DUAL |
R-PDSO-G3 |
e3 |
||||||||||||||||||||||
|
Onsemi |
NPN |
SINGLE |
YES |
300 MHz |
.3 W |
.2 A |
PLASTIC/EPOXY |
GULL WING |
RECTANGULAR |
1 |
4 |
SMALL OUTLINE |
Other Transistors |
30 |
150 Cel |
SILICON |
40 V |
70 ns |
250 ns |
MATTE TIN |
DUAL |
R-PDSO-G4 |
1 |
COLLECTOR |
Not Qualified |
TO-261AA |
e3 |
30 |
260 |
||||||||||||||||
|
Nexperia |
PNP |
SINGLE |
YES |
140 MHz |
1 A |
PLASTIC/EPOXY |
SWITCHING |
GULL WING |
RECTANGULAR |
1 |
4 |
SMALL OUTLINE |
63 |
SILICON |
80 V |
TIN |
DUAL |
R-PDSO-G4 |
1 |
COLLECTOR |
e3 |
30 |
260 |
AEC-Q101; IEC-60134 |
|||||||||||||||||||||
|
Infineon Technologies |
NPN |
SINGLE |
YES |
70 MHz |
.2 A |
PLASTIC/EPOXY |
SWITCHING |
GULL WING |
RECTANGULAR |
1 |
3 |
SMALL OUTLINE |
30 |
150 Cel |
SILICON |
300 V |
TIN |
DUAL |
R-PDSO-G3 |
1 |
e3 |
AEC-Q101 |
|||||||||||||||||||||||
|
Infineon Technologies |
NPN |
SINGLE |
YES |
70 MHz |
.5 A |
PLASTIC/EPOXY |
GULL WING |
RECTANGULAR |
1 |
3 |
SMALL OUTLINE |
40 |
SILICON |
300 V |
DUAL |
R-PDSO-G3 |
NOT SPECIFIED |
NOT SPECIFIED |
AEC-Q101 |
||||||||||||||||||||||||||
|
Onsemi |
PNP |
SINGLE |
YES |
100 MHz |
.4 W |
.5 A |
PLASTIC/EPOXY |
GULL WING |
RECTANGULAR |
1 |
3 |
SMALL OUTLINE |
Other Transistors |
50 |
150 Cel |
SILICON |
150 V |
MATTE TIN |
DUAL |
R-PDSO-G3 |
1 |
e3 |
30 |
260 |
|||||||||||||||||||||
|
Diodes Incorporated |
NPN |
SINGLE |
YES |
300 MHz |
.2 W |
.2 A |
PLASTIC/EPOXY |
GULL WING |
RECTANGULAR |
1 |
3 |
SMALL OUTLINE |
Other Transistors |
30 |
150 Cel |
SILICON |
40 V |
70 ns |
MATTE TIN |
DUAL |
R-PDSO-G3 |
1 |
Not Qualified |
HIGH RELIABILITY |
e3 |
30 |
260 |
AEC-Q101 |
|||||||||||||||||
Diodes Incorporated |
NPN |
SINGLE |
YES |
140 MHz |
2 A |
PLASTIC/EPOXY |
SWITCHING |
GULL WING |
RECTANGULAR |
1 |
3 |
SMALL OUTLINE |
40 |
SILICON |
60 V |
SINGLE |
R-PSSO-G3 |
Not Qualified |
NOT SPECIFIED |
NOT SPECIFIED |
CECC |
|||||||||||||||||||||||||
Microchip Technology |
NPN |
SINGLE |
NO |
1.5 A |
METAL |
WIRE |
ROUND |
1 |
3 |
CYLINDRICAL |
35 |
200 Cel |
SILICON |
55 V |
TIN LEAD |
BOTTOM |
O-MBCY-W3 |
COLLECTOR |
Not Qualified |
TO-5 |
e0 |
MIL-19500/207C |
||||||||||||||||||||||||
|
NXP Semiconductors |
NPN |
SINGLE |
YES |
180 MHz |
1 A |
PLASTIC/EPOXY |
SWITCHING |
FLAT |
RECTANGULAR |
1 |
3 |
SMALL OUTLINE |
40 |
150 Cel |
SILICON |
80 V |
Tin (Sn) |
SINGLE |
R-PSSO-F3 |
1 |
COLLECTOR |
Not Qualified |
TO-243AA |
e3 |
30 |
260 |
AEC-Q101; IEC-60134 |
||||||||||||||||||
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 |
||||||||||||||||||||||||||
Microchip Technology |
PNP |
SINGLE |
NO |
200 MHz |
.4 W |
.6 A |
METAL |
SWITCHING |
WIRE |
ROUND |
1 |
3 |
CYLINDRICAL |
Other Transistors |
100 |
200 Cel |
SILICON |
60 V |
45 ns |
-65 Cel |
300 ns |
TIN LEAD |
BOTTOM |
O-MBCY-W3 |
1 |
COLLECTOR |
Qualified |
TO-206AA |
e0 |
MIL-19500/291M |
||||||||||||||||
|
Renesas Electronics |
PNP |
SINGLE |
YES |
180 MHz |
.15 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 |
||||||||||||||||||||||
|
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 |
30 V |
-55 Cel |
Matte Tin (Sn) - annealed |
DUAL |
R-PDSO-G3 |
1 |
Not Qualified |
TO-236 |
e3 |
40 |
260 |
||||||||||||||||
|
Infineon Technologies |
PNP |
SINGLE |
YES |
150 MHz |
.8 A |
PLASTIC/EPOXY |
SWITCHING |
GULL WING |
RECTANGULAR |
1 |
3 |
SMALL OUTLINE |
40 |
150 Cel |
SILICON |
125 V |
TIN |
DUAL |
R-PDSO-G3 |
1 |
Not Qualified |
e3 |
|||||||||||||||||||||||
|
NXP Semiconductors |
NPN |
SINGLE |
YES |
180 MHz |
1 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 |
TO-243AA |
e3 |
30 |
260 |
AEC-Q101; IEC-60134 |
|||||||||||||||||
|
Diotec Semiconductor Ag |
PNP |
SINGLE |
NO |
100 MHz |
.625 W |
.8 A |
PLASTIC/EPOXY |
.7 V |
WIRE |
ROUND |
1 |
3 |
CYLINDRICAL |
.625 W |
170 |
150 Cel |
12 pF |
SILICON |
45 V |
-55 Cel |
BOTTOM |
O-PBCY-W3 |
Not Qualified |
TO-92 |
NOT SPECIFIED |
NOT SPECIFIED |
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