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2N4427 The Central Semiconductor 2N4427 is an NPN RF transistor designed for high-frequency amplifier applications. It features a TO-39 package and operates at high frequencies.
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2N4427

Available from 1 distributors
Mfr Name: DSI
DSI
The Central Semiconductor 2N4427 is an NPN RF transistor designed for high-frequency amplifier applications. It features a TO-39 package and operates at high frequencies.
✓ Total Stock: 5 pcs
$ Price Range: $0.77

2N4427 Available from 1 distributor

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2N4427 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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2N4427 Description

Short technical summary and product information.

The Central Semiconductor 2N4427 is a silicon NPN epitaxial planar RF transistor. It is housed in a hermetically sealed TO-39 package, making it suitable for demanding applications.

 

This transistor is designed for high-frequency amplifier applications. Key electrical characteristics include a collector-emitter voltage (V_CEO) of 20V, a continuous collector current (I_C) of 400mA, and a maximum power dissipation of 1.0W (or 3.5W at 25°C case temperature). It boasts a transition frequency (fT) of 500MHz at 15V and 50mA.

 

The 2N4427 is specified with a collector-base voltage (V_CBO) of 40V and an emitter-base voltage (V_EBO) of 2.0V. Its DC current gain (hFE) ranges from 10 to 200 at 100mA collector current. The operating and storage junction temperature range is -65°C to +200°C.

 

This component is suitable for through-hole mounting. Its robust construction and electrical specifications make it a reliable choice for RF circuit designs.

2N4427 Quick Information

Product Type: NPN RF Transistor
Canonical Name: 2N4427 NPN RF Transistor
Subcategory: NPN RF Transistor

2N4427 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

2N4427 Estimated Pricing

Qty Low High
1+ $0.77 $0.77

Estimated market price range - modelled values for guidance only, not live distributor offers.

2N4427 Features

  • NPN Epitaxial Planar RF Transistor
  • Designed for high frequency amplifiers
  • TO-39 hermetically sealed package
  • 40V Collector-Base Voltage (V_CBO)
  • 500MHz Transition Frequency (fT)

2N4427 Applications

  • Used in RF signal amplification
  • Suitable for switching circuits
  • Ideal for high-voltage applications
  • Applicable in audio and radio frequency circuits

2N4427 FAQs

4 frequently asked questions generated from this part’s specifications.
What is the maximum collector-emitter voltage for the 2N4427?

The maximum collector-emitter voltage (V_CEO) for the 2N4427 is 20V.

What is the maximum continuous collector current?

The maximum continuous collector current (I_C) for the 2N4427 is 400mA.

What is the transition frequency (fT) of the 2N4427?

The transition frequency (fT) of the 2N4427 is 500MHz at 15V collector-emitter voltage and 50mA collector current.

What package type is the 2N4427 available in?

The 2N4427 is available in a TO-39 case.

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