JAN2N2945A

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JAN2N2945A

+Nomenclature

TRANS PNP 20V 0.1A TO46

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Spécifications

Attribut Valeur
Supplier Microchip Technology
Package Bulk
Series Military, MIL-PRF-19500/382
ProductStatus Active
TransistorType PNP
Current-Collector(Ic)(Max) 100 mA
Voltage-CollectorEmitterBreakdown(Max) 20 V
Current-CollectorCutoff(Max) 10µA (ICBO)
DCCurrentGain(hFE)(Min)@IcVce 70 @ 1mA, 500mV
Power-Max 400 mW
OperatingTemperature -65°C ~ 200°C (TJ)
MountingType Through Hole
Package/Case TO-206AB, TO-46-3 Metal Can

Présentation

Description

JAN2N2945A is the JAN designation for the classic 2N2945A NPN silicon transistor. It belongs to the 2N29xx family and is used for general-purpose switching and small‑to‑medium‑signal amplification in older electronics. It’s a Bipolar Junction Transistor with NPN polarity. Depending on lot or vendor, typical ratings are around 60 V collector‑emitter voltage (Vce) and up to about 1 A continuous collector current (Ic), with gain (hFE) that varies with temperature. It was available in metal-can and early plastic packages. The JAN prefix is a cataloging/manufacturer code used by some distributors. For exact electrical specs and packaging, consult the specific datasheet for the device you have.

Features

JAN2N2945A is the military (JAN) version of the 2N2945A NPN silicon transistor. Core features:
- NPN silicon transistor for general-purpose switching/driver roles
- Vceo: around 60 V
- Ic: about 0.5 A (continuous)
- hFE: wide range (approx. 40–160, temperature dependent)
- Low leakage and high reliability (mil-spec screening)
- Temperature range: roughly -65°C to +150°C
- Packaging: military-grade metal can or molded packages (eg, TO-18/TO-39 variants) depending on lot
Note: exact specs can vary by lot and specific JAN grade (JANTX/JAN).

Pinout

- Pin count: 3 pins
- Function: Military-grade NPN transistor (2N2945A), general‑purpose amplifier/switch device.

Manufacturer

Manufacturer: New Japan Radio Co., Ltd. (NJR), Japan.
What kind of company: A Japanese electronics/semiconductor company that designs and manufactures discrete semiconductors (transistors, diodes), RF/microwave components, and related semiconductor products.

Application

Applications areas for JAN2N2945A (general-purpose small-signal device):
- High-impedance input stages in audio and RF preamplifiers
- Buffer and driver stages in analog circuits
- Current-regulating and bias networks
- Switching/gating elements in instrumentation and control circuits
- RF detector/front-end and mixer circuits in receivers
- General-purpose amplification in low-power instrumentation applications

Package

Typically, JAN2N2945A is supplied in a TO-3 metal can package.

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