Mfr Part #:

2N2647

Mfr Name: Solid State Devices Inc (SSDI)

The 2N2647 is a silicon PN unijunction transistor in a TO-18 metal can package. It features a maximum power dissipation of 300mW and an emitter reverse voltage of 30V.

✓ Total Stock: 3,000 pcs

2N2647 Available from 1 distributor

✓ Authorised

✓ 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	3,000 pcs On Request	3000 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

2N2647 Specifications Quick View

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Category	Transistors - Programmable Unijunction
Manufacturer Name	Solid State Devices Inc (SSDI)
Current	2 µA
Mounting Type	Through Hole
Power Dissipation (Max)	300 mW
Termination Style	Wire Leads
Voltage	7V

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2N2647 Description

Short technical summary and product information.

The 2N2647 is a silicon PN unijunction transistor designed for general purpose industrial applications. It is housed in a TO-18 (UJT) metal can package with through-hole mounting and wire lead terminations.

Key electrical characteristics include a maximum emitter reverse voltage of 30V, interbase voltage of 35V, RMS emitter current of 50mA, and peak emitter current of 2.0A. The intrinsic standoff ratio ranges from 0.68 to 0.82, and interbase resistance is between 4.7 and 9.1 kΩ. The device operates over a junction temperature range of -65°C to +150°C.

This unijunction transistor is suitable for pulse and timing circuits, oscillators, and trigger circuits where its negative resistance characteristic is utilized.

2N2647 Quick Information

Product Type: Unijunction Transistor

Canonical Name: 2N2647 Silicon PN Unijunction Transistor

Subcategory: Programmable Unijunction

2N2647 Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

2N2647 Features

Maximum power dissipation of 300mW.
Emitter reverse voltage rated at 30V.
Intrinsic standoff ratio of 0.68 to 0.82.
TO-18 metal can package with through-hole mounting.
Operating junction temperature range -65 to +150°C.

2N2647 Applications

Used in pulse and timing circuits.
Suitable for relaxation oscillators.
Ideal for trigger and switching applications.
Employed in industrial control systems.

2N2647 FAQs

5 frequently asked questions generated from this part’s specifications.

What is the maximum power dissipation of the 2N2647?

The maximum power dissipation is 300mW.

What is the operating junction temperature range?

The operating junction temperature range is -65°C to +150°C.

What package is the 2N2647 available in?

The 2N2647 is available in a TO-18 (UJT) metal can package.

What is the intrinsic standoff ratio of the 2N2647?

The intrinsic standoff ratio ranges from 0.68 to 0.82.

What is the maximum emitter reverse voltage?

The maximum emitter reverse voltage is 30V.