STMicroelectronics RF Small Signal Bipolar Junction Transistors (BJT) 57

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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 VCEsat Minimum Power Gain (Gp) Terminal Form Package Shape No. of Elements Highest Frequency Band No. of Terminals Package Style (Meter) Sub-Category 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 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) Reference Standard

START499ETR

STMicroelectronics

NPN

SINGLE

YES

42000 MHz

.6 W

.6 A

PLASTIC/EPOXY

AMPLIFIER

GULL WING

RECTANGULAR

1

C BAND

4

SMALL OUTLINE

Other Transistors

150 Cel

SILICON

4.5 V

MATTE TIN

DUAL

R-PDSO-G4

1

EMITTER

Not Qualified

e3

MSC82001

STMicroelectronics

NPN

SINGLE

NO

7 W

.2 A

CERAMIC, METAL-SEALED COFIRED

AMPLIFIER

FLAT

ROUND

1

L BAND

2

FLANGE MOUNT

Other Transistors

15

200 Cel

3.2 pF

SILICON

RADIAL

O-CRFM-F2

BASE

Not Qualified

MSC1000M

STMicroelectronics

NPN

SINGLE

NO

.3 A

PLASTIC/EPOXY

AMPLIFIER

FLAT

ROUND

1

L BAND

2

FLANGE MOUNT

Other Transistors

15

200 Cel

SILICON

20 V

RADIAL

O-PRFM-F2

EMITTER

Not Qualified

HIGH RELIABILITY

SD5000

STMicroelectronics

NPN

SINGLE

NO

7 W

1 A

PLASTIC/EPOXY

FLAT

ROUND

1

ULTRA HIGH FREQUENCY BAND

4

POST/STUD MOUNT

Other Transistors

18

200 Cel

4 pF

SILICON

23 V

RADIAL

O-PRPM-F4

Not Qualified

HIGH RELIABILITY

START540TR

STMicroelectronics

NPN

SINGLE

YES

45000 MHz

.18 W

.04 A

PLASTIC/EPOXY

AMPLIFIER

GULL WING

RECTANGULAR

1

C BAND

4

SMALL OUTLINE

BIP RF Small Signal

100

150 Cel

SILICON

4.5 V

MATTE TIN

DUAL

R-PDSO-G4

EMITTER

Not Qualified

LOW NOISE

e3

2N3137

STMicroelectronics

NPN

SINGLE

NO

750 MHz

2 W

.15 A

METAL

AMPLIFIER

WIRE

ROUND

1

VERY HIGH FREQUENCY BAND

3

CYLINDRICAL

Other Transistors

20

175 Cel

3.5 pF

SILICON

20 V

TIN LEAD

BOTTOM

O-MBCY-W3

Not Qualified

LOW NOISE

TO-39

e0

BFR98

STMicroelectronics

NPN

SINGLE

NO

500 MHz

2 W

.5 A

METAL

AMPLIFIER

.5 V

WIRE

ROUND

1

VERY HIGH FREQUENCY BAND

3

CYLINDRICAL

Other Transistors

3.5 W

5

200 Cel

4 pF

SILICON

20 V

TIN LEAD

BOTTOM

O-MBCY-W3

Not Qualified

TO-39

e0

BFR99

STMicroelectronics

PNP

SINGLE

NO

2000 MHz

.225 W

.05 A

METAL

AMPLIFIER

WIRE

ROUND

1

ULTRA HIGH FREQUENCY BAND

4

CYLINDRICAL

Other Transistors

175 Cel

SILICON

25 V

TIN LEAD

BOTTOM

O-MBCY-W4

Not Qualified

LOW NOISE

TO-72

e0

BFR99A

STMicroelectronics

PNP

SINGLE

NO

2300 MHz

.36 W

.05 A

METAL

AMPLIFIER

WIRE

ROUND

1

ULTRA HIGH FREQUENCY BAND

4

CYLINDRICAL

Other Transistors

25

200 Cel

SILICON

25 V

TIN LEAD

BOTTOM

O-MBCY-W4

Not Qualified

LOW NOISE

TO-72

e0

RF Small Signal Bipolar Junction Transistors (BJT)

RF Small Signal Bipolar Junction Transistors (BJT) are electronic devices used in low-power RF (radio frequency) applications to amplify and control small signals. They are commonly used in applications such as wireless communication, GPS, and radio broadcasting.

RF Small Signal BJTs are designed to handle low-power levels and operate at high frequencies, typically in the range of a few MHz to several GHz. They have a high gain and low noise figure, making them suitable for small signal amplification.

The RF 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.

RF Small Signal BJTs are available in various types and configurations, including NPN and PNP bipolar transistors, and can handle power levels ranging from a few milliwatts to a few watts. They are subject to various standards and regulations, such as JEDEC (Joint Electron Device Engineering Council) and RoHS (Restriction of Hazardous Substances), to ensure their safety and performance.