KT315A–KT315I Silicon PNP Transistors USSR Vintage NOS

Lot of 100 pcs

 

Item Description:
Offered are original Soviet-era KT315 series Silicon NPN transistors, covering variants KT315A through KT315I (КТ315А – КТ315И). These low-power, high-frequency Silicon transistors were widely used in USSR audio, RF, and signal-processing equipment, including portable radios, preamplifiers, oscillators, and switching stages.

Manufactured in the USSR to military/industrial standards, KT315 devices are valued today for restoration of vintage electronics and for their characteristic sound in audio applications.

Key Features:

• Type: NPN Silicon transistor
• Series: KT315 (КТ315)
• Variants: A, B, V, G, D, E, J, I (depending on availability)
• Technology: Silicon
• Application class: Low-power, high-frequency
• Origin: USSR (Soviet production)
• Condition: New Old Stock (NOS) or tested pulls (as stated in listing)

Typical Electrical Characteristics (values vary by sub-type):

Parameter	Typical Range
Collector–Emitter Voltage (VCEO)	12–60 V
Collector–Base Voltage (VCBO)	up to 60 V
Emitter–Base Voltage (VEBO)	~0.6–1.5 V
Collector Current (IC max)	50 mA
Power Dissipation (PC)	150 mW
DC Current Gain (hFE)	20–350 (group-dependent)
Transition Frequency (fT)	up to 250 MHz
Noise Figure	Low (suitable for AF/RF stages)

Exact parameters depend on the letter group (A–I), which classifies gain and frequency characteristics.

Package & Marking:

• Case: Plastic
• Leads: Radal
• Marking: Type designation in Cyrillic

Common Applications:

• Vintage radio and tape recorder repair
• Audio preamplifiers and tone stages
• RF and IF amplification
• Oscillators and low-level switching circuits
• DIY audio projects

Notes:

• These are vintage components; minor cosmetic storage marks are normal.
• Please select the required variant (KT315A–KT315I) if options are provided.
• Datasheet-equivalent parameters are given for reference; matching may be required for precision circuits.