2N2646 The DSI 2N2646 is a general-purpose silicon PN Unijunction Transistor designed for industrial applications. It is popular as a triggering device.
Mfr Part #:

2N2646

Available from 1 distributors
Mfr Name: DSI
DSI
The DSI 2N2646 is a general-purpose silicon PN Unijunction Transistor designed for industrial applications. It is popular as a triggering device.
✓ Total Stock: 19 pcs
$ Price Range: $0.77

2N2646 Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
19 pcs
19 pcs On Request 1 On Request On Request On Request On Request On Request

2N2646 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Mounting Type
Operating Temperature
Power Dissipation

2N2646 Description

Short technical summary and product information.

The 2N2646 is a general-purpose silicon PN Unijunction Transistor from DSI, suitable for various industrial applications. It is primarily used as a triggering device and is not designed for driving power loads.

 

Key electrical specifications include a low emitter reverse current of 0.005µA (typical), a maximum voltage between the two bases (VB2B1) of 35V, and a maximum emitter reverse voltage (VB2E) of 30V. The device can handle a maximum RMS emitter current of 50mA and a maximum peak emitter current of 2A. Its operating temperature range spans from -65°C to +150°C, with a maximum power dissipation of 300mW.

 

This transistor is particularly useful in designing firing circuits for Silicon Controlled Rectifiers and other applications requiring a guaranteed minimum pulse amplitude, low emitter leakage current, and a low peak point emitter current. It is available with Sn/Pb plating and is not RoHS compliant.

 

The 2N2646 is typically mounted through a hole in the PCB. Its pin configuration includes Base 1, Emitter, and Base 2, with the conductive case internally connected to Base 2.

2N2646 Quick Information

Product Type: Unijunction Transistor
Canonical Name: 2N2646 Unijunction Transistor
Subcategory: Unijunction Transistor

2N2646 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Non-RoHS (Sn/Pb plating)

2N2646 Estimated Pricing

Qty Low High
1+ $0.77 $0.77

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

2N2646 Features

  • General purpose silicon PN Unijunction Transistor.
  • Low emitter reverse current of 0.005µA.
  • Maximum voltage between bases is 35V.
  • Wide operating temperature range: -65°C to +150°C.
  • Suitable for triggering applications.

2N2646 Applications

  • Used in firing circuits for SCRs.
  • Suitable for relaxation oscillator circuits.
  • Ideal for low-cost industrial applications.
  • Applications requiring minimum pulse amplitude.

2N2646 FAQs

4 frequently asked questions generated from this part’s specifications.
What is the maximum voltage between the two bases of the 2N2646 transistor?

The maximum voltage between the two bases (VB2B1) for the 2N2646 transistor is 35V.

What is the operating temperature range for the 2N2646 transistor?

The 2N2646 transistor operates within a temperature range of -65°C to +150°C.

What is the maximum power dissipation of the 2N2646 transistor?

The maximum power dissipation for the 2N2646 transistor is 300mW.

What is the RoHS status of the 2N2646 transistor?

The 2N2646 transistor is described as non-RoHS with Sn/Pb plating.

Home
Account

Categories