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2N4948 2N4948 is a through-hole programmable unijunction transistor in a TO-206AA / TO-18-3 metal can package. Features 2 µA emitter current and 6V base-to-base voltage.
Mfr Part #:

2N4948

Available from 1 distributors
Mfr Name: Central Semiconductor Corp
Central Semiconductor Corp
2N4948 is a through-hole programmable unijunction transistor in a TO-206AA / TO-18-3 metal can package. Features 2 µA emitter current and 6V base-to-base voltage.
✓ Total Stock: 4,000 pcs

2N4948 Available from 1 distributor

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Components Technology Group, Inc. ✓
Non-Authorised Inventory information
4,000 pcs
On Request
4000 pcs On Request 1 On Request On Request On Request On Request On Request
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2N4948 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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2N4948 Description

Short technical summary and product information.

The 2N4948 is a programmable unijunction transistor (UJT) manufactured by Central Semiconductor Corp. It is designed for through-hole mounting and comes in a TO-206AA / TO-18-3 metal can package.

 

Electrical specifications include an emitter current of 2 µA and a base-to-base voltage of 6V. These parameters define the device's switching and timing characteristics in typical UJT oscillator and trigger circuits.

 

The metal can package provides robust mechanical protection and good thermal performance. The through-hole mounting style is suitable for prototyping and applications where manual assembly or high-reliability solder joints are required.

2N4948 Quick Information

Product Type: Programmable Unijunction Transistor
Canonical Name: 2N4948 Programmable Unijunction Transistor
Subcategory: Transistors - Programmable Unijunction

2N4948 Compliance

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

2N4948 Features

  • 2 µA emitter current rating.
  • 6V base-to-base voltage rating.
  • Through-hole TO-18 metal can package.
  • RoHS3 compliant and REACH unaffected.
  • MSL Level 1 (unlimited) moisture sensitivity.

2N4948 Applications

  • Used in timing and oscillator circuits.
  • Suitable for trigger and switching applications.
  • Ideal for through-hole prototyping and assembly.

2N4948 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the emitter current of the 2N4948?

The emitter current is 2 µA.

What is the base-to-base voltage of the 2N4948?

The base-to-base voltage is 6V.

What package does the 2N4948 come in?

It comes in a TO-206AA / TO-18-3 metal can package.

What is the mounting type for the 2N4948?

Through-hole mounting.

Is the 2N4948 RoHS compliant?

Yes, it is listed as RoHS3 compliant.

What is the MSL rating of the 2N4948?

MSL Level 1 (unlimited).

Is the 2N4948 REACH affected?

No, it is listed as REACH unaffected.

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