Product Overview
National Semiconductor 2N3605 NPN Silicon VHF Transistor - TO-98 Package, 300 MHz, Unused NOS
Condition
Unused NOS. Sourced from an electronics distributor consolidating inventory. Photos show loose TO-92 transistors with leads unbent and bodies intact - clean and undamaged. Price is per piece. Covered by our no-hassle guarantee.
Ships same or next business day from our Idaho warehouse. Reliable parts since 1999. Honest pricing, no nonsense.
No hassle resolution if there is an issue. Serving customers since 1999.
Product Overview
National Semiconductor 2N3605 - NPN silicon BJT rated for VHF small signal applications including high-frequency oscillators and amplifiers. TO-98 package. Transition frequency of 300 MHz. Specs - including Vce, Vcb, Ic max, and power dissipation - should be verified against a reliable datasheet before use, as sourced values vary across references.
Key Features
- Polarity: NPN
- Material: Silicon
- Package: TO-98 (through-hole, not surface-mount)
- Transition frequency (fT): 300 MHz - Not confirmed, verify against datasheet before use
- DC current gain (hFE): minimum 30 - Not confirmed, verify against datasheet before use
- Max junction temperature: 150 °C - Not confirmed, verify against datasheet before use
- Collector-emitter voltage (Vce), collector current (Ic), and power dissipation: conflicting values found across sources - verify against datasheet before use
Applications
- VHF oscillator and amplifier circuits
- Audio preamplifier and small-signal amplifier stages
- Signal processing circuits requiring NPN BJT switching
- Hobbyist RF and radio projects in the VHF band
- Vintage electronics repair and restoration requiring TO-98 NPN silicon transistors
- Breadboard experimentation and educational circuit building
Frequently Asked Questions
What are the exact voltage and power ratings for the 2N3605?
Conflicting values appear across sources. Common references cite Vce around 14V and power dissipation around 200mW, but these are not confirmed from a primary datasheet. Verify all absolute maximum ratings against a reliable datasheet before designing this part into a circuit.
Is this an NPN or PNP transistor?
NPN. It cannot be directly swapped for a PNP transistor without circuit modification.
Is this a surface-mount or through-hole part?
Through-hole. TO-98 package with standard wire leads. Not a surface-mount device.
What is the difference between the 2N3605 and 2N3605A?
The 2N3605A is a variant with a slightly higher Vce and higher power dissipation rating than the 2N3605. Confirm exact differences in a datasheet before substituting one for the other.
Old-school through-hole NPN from National Semiconductor - the kind of transistor that shows up in schematics dating back decades and still earns its spot on a new breadboard. Clean leads, unused stock, ready for whatever you are building or bringing back to life.
