Transistor 2N918

Transistor 2N918 NPN, RF TO-72

Transistors

Reference: TR2N918

Part.No: 2N918

€1.40

In Stock

Immediate Dispatch

The 2N918 is a NPN silicon high-frequency (RF) transistor in a metal TO-72 package. Designed for low-noise VHF amplifiers and oscillators up to 1 GHz, ideal for RF front-ends and vintage radio/communications projects.

Add to cart

Subscribe To When In Stock

You have successfully subscribed to this product

Description
Product Details

2N918 RF Transistor - Low-Noise VHF Amplification up to 1 GHz

The 2N918 is a silicon planar epitaxial NPN transistor housed in a hermetic TO-72 metal can, purpose-built for high-frequency work rather than general switching. It is commonly found in low-noise VHF amplifier stages, non-neutralized IF amplifiers and oscillators, making it a classic choice for RF hobbyists and legacy communications equipment repair.

Functions & Applications

High-Frequency Operation: Suitable for oscillators and amplifiers up to 1 GHz.
Low-Noise Design: Optimized for clean VHF signal amplification in receiver front-ends.
Hermetic TO-72 Metal Case: Rugged, shielded package ideal for RF and long-term stability.
Fast Switching: Rise and fall times under 2.5 ns for non-saturating pulse circuits.

Technical Specifications

Parameter	Value / Specification
Transistor Type	BJT (Bipolar Junction Transistor)
Polarity / Channel	NPN
Package / Case	TO-72
Collector-Base Voltage (Vcbo)	30V
Collector-Emitter Voltage (Vceo)	15V
Max Collector Current (Ic)	50mA
Power Dissipation (Pd)	200mW
Mounting Type	Through-Hole (THT)

Frequently Asked Questions

Q: What frequency range is the 2N918 designed for?
A: It is built for low-noise VHF amplification and can operate as an oscillator at frequencies up to 1 GHz, making it suitable for RF front-end and IF stages.

Q: Can I use the 2N918 as a general-purpose switching transistor?
A: It can switch, but its design and low 50mA/200mW ratings target RF and low-noise signal applications rather than power switching - use a general-purpose NPN like the BC547 for that instead.

Notes

This is a legacy RF/VHF transistor in a metal TO-72 can, primarily of interest for vintage radio, oscillator and RF hobby projects rather than general-purpose switching.

Note: Price refers to one (1) piece. The component is shipped in bulk without individual packaging.

Transistor Type: BJT (Bipolar Junction Transistor)
Transistor Polarity / Channel: NPN
Transistor Case Style: TO-72

16 other products in the same category:

Transistor AF138 PNP, Germanium UHF TO-72

Transistor AF138 PNP, Germanium UHF TO-72 2

Transistors

Transistor AF138 PNP, Germanium UHF TO-72

Reference:

TRAF138

The AF138 is a vintage PNP germanium transistor in a shielded TO-72 package (4-lead), optimized for UHF tuning circuits and measurement equipment. Its built-in electromagnetic shielding minimizes RF noise in high-frequency amplification stages.

Last items in stock

Transistor 2SC829 NPN, 30mA TO-92

Transistors

Transistor 2SC829 NPN, 30mA TO-92

Reference:

TR2SC829

The 2SC829 is a Silicon NPN RF transistor in a TO-92 package, made by Panasonic for high-frequency amplification. Optimized for RF/IF amplification, oscillation and mixing stages in FM/AM radio receivers.

In Stock

Transistor BC179 PNP 20 V 50 mA 300 mW TO-18

Transistors

Transistor BC179 PNP, 50mA TO-18

Reference:

TRBC179

The BC179 is a low-noise PNP Bipolar Junction Transistor (BJT) in a metal TO-18 package. Designed for small-signal audio amplification and general-purpose switching in vintage and modern low-power circuits.

In Stock

Transistor BC303 PNP, 65V, 1A, 850mW, TO-39

Transistors

Transistor BC303 PNP, 1A TO-39

Reference:

TRBC303

The BC303 is a general-purpose PNP Bipolar Junction Transistor (BJT) in a metal TO-39 can. Rated for 65V and 1A, it suits medium-power switching and amplification stages needing better heat dissipation than a plastic TO-92 part.

In Stock

Transistor BF198 NPN, VHF/RF TO-92

Transistors

Transistor BF198 NPN, VHF/RF TO-92

Reference:

TRBF198

The BF198 is a classic NPN Bipolar Junction Transistor (BJT) in a TO-92 package, purpose-built for VHF/RF applications. Optimized for FM radio preamplifiers, local oscillators, and wideband signal processing up to the FM band (88–108 MHz).

In Stock

Power Transistor 2SC1013 NPN, 1.5A TO-202

Transistors

Power Transistor 2SC1013 NPN, 1.5A TO-202

Reference:

TR2SC1013

The 2SC1013 is a reliable NPN power transistor in a TO-202 package. Designed for medium-power amplification and load driving applications requiring a heatsink for sustained operation.

In Stock

Transistor BD185 NPN, 4A, 30V, 40W, TO-126

Transistors

Power Transistor BD185 NPN, 4A TO-126

Reference:

TRBD185

The BD185 is an NPN Bipolar Junction Transistor (BJT) in a TO-126 power package, rated for 4A collector current and 40W dissipation. Designed for switching and low-frequency power amplification stages.

Last items in stock

Power Transistor BD438 PNP, 4A TO-126

Transistors

Power Transistor BD438 PNP, 4A TO-126

Reference:

TRBD438

The BD438 is a PNP power transistor in a TO-126 package, engineered for medium-power audio and voltage regulation applications. The complementary partner to the BD437, it delivers reliable switching and linear amplification in symmetrical output stages.

In Stock

Transistor 2SA715

Transistors

Transistor 2SA715

Reference:

TR2SA715

Το 2SA715 είναι ένα PNP τρανζίστορ ισχύος πυριτίου σε θήκη TO-126. Σχεδιασμένο για ενίσχυση ισχύος χαμηλής συχνότητας και βαθμίδες οδήγησης (driver), αποτελεί το συμπληρωματικό PNP ζεύγος του NPN 2SC1162.

Last items in stock

Transistor 2SC496 NPN, 0.8A TO-92

Transistors

Transistor 2SC496 NPN, 0.8A TO-92

Reference:

TR2SC496

The 2SC496 is a general-purpose NPN Bipolar Junction Transistor (BJT) in a TO-92 package. Designed for reliable switching and amplification in amateur radio, audio circuits, and general-purpose low-to-medium power applications.

Last items in stock

Power Transistor BU109 NPN, TO-3

Transistors

Power Transistor BU109 NPN, TO-3

Reference:

TRBU109

The BU109 is a high-voltage NPN power transistor in a TO-3 package, designed for line output (LOPT) and horizontal deflection circuits in CRT televisions and similar high-voltage switching applications. Its rugged construction withstands peak voltages in the kilovolt range.

Last items in stock

Transistor BC517 NPN, 30V, TO-92

Transistors

Transistor BC517 NPN, 30V, TO-92

Reference:

TRBC517

In Stock

Power Transistor BU208A NPN, 1500V TO-3

Transistors

Power Transistor BU208A NPN, 1500V TO-3

Reference:

TRBU208A

The BU208A is a high-voltage NPN power transistor in a TO-3 package, designed specifically for CRT deflection and flyback (LOPT) applications. It withstands peak voltages up to 1500V and has been the industry standard for television line output stages for decades.

In Stock

Transistor BF337 NPN, TO-39

Transistors

Transistor BF337 NPN, TO-39

Reference:

TRBF337

The BF337 is a high-voltage NPN Bipolar Junction Transistor (BJT) in a TO-39 package. Engineered for video output and deflection circuits in classic CRT monitors and televisions, delivering reliable performance at elevated voltages.

Last items in stock

Transistor BF194 NPN RF/IF, 30mA TO-92

Transistors

Transistor BF194 NPN RF/IF, 30mA TO-92

Reference:

TRBF194

The BF194 is a classic NPN BJT in TO-92 package, purpose-designed for RF and IF amplification at 455kHz (AM) and 10.7MHz (FM). Industry standard for portable radio receivers, with extremely low internal capacitance for minimal signal attenuation at radio frequencies.

In Stock

Transistor 2SC2236 NPN, 1.5A TO-92

Transistors

Transistor 2SC2236 NPN, 1.5A TO-92

Reference:

TR2SC2236

The 2SC2236 is a high-current NPN Bipolar Junction Transistor (BJT) in a TO-92 package. Engineered for driving relays, motors and other moderate-power loads in switching applications.

In Stock

Product added to wishlist

Product added to compare.