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2N3439 The 2N3439 is an NPN silicon transistor rated for 350V collector-emitter voltage and 1A collector current. It is housed in a TO-39 metal can package.
Mfr Part #:

2N3439

Available from 1 distributors
Mfr Name: NTE Electronics
NTE Electronics
The 2N3439 is an NPN silicon transistor rated for 350V collector-emitter voltage and 1A collector current. It is housed in a TO-39 metal can package.
✓ Total Stock: 16,000 pcs

2N3439 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
16,000 pcs
On Request
16000 pcs On Request 1 On Request On Request On Request On Request On Request
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2N3439 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
DC Current Gain (hFE) (Min) @ Ic, Vce
Frequency
Mounting Type
Operating Temperature
Power
Supplier Device Package
Tape & Reel
Termination Style
Transistor Type
Vce Saturation (Max) @ Ib, Ic
Voltage
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2N3439 Description

Short technical summary and product information.

The 2N3439 is a silicon epitaxial planar NPN transistor designed for high-voltage, low-current applications. It features a maximum collector-emitter voltage (VCEO) of 350V and a collector current rating of 1A, making it suitable for line-operated consumer and industrial equipment.

 

Key electrical characteristics include a DC current gain (hFE) of 40 minimum at 20mA collector current and a transition frequency of 15MHz. The device has a maximum power dissipation of 1W at 50°C ambient temperature and 10W at 25°C case temperature.

 

The transistor is packaged in a TO-205AD (TO-39-3) metal can with through-hole mounting. It is designed for use as a driver in high-voltage inverters, switching regulators, and series regulator circuits.

2N3439 Quick Information

Product Type: Bipolar Junction Transistor (BJT)
Canonical Name: 2N3439 NPN Silicon Transistor
Subcategory: Single NPN

2N3439 Compliance

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

2N3439 Features

  • NPN silicon transistor in TO-39 metal can.
  • Rated for 350V collector-emitter voltage.
  • Maximum collector current of 1 ampere.
  • 15MHz typical transition frequency.
  • Through-hole mounting for easy assembly.

2N3439 Applications

  • Driver for high-voltage low current inverters.
  • Switching regulator and series regulator circuits.
  • Line-operated consumer and industrial equipment.
  • High-voltage switching and amplification stages.

2N3439 FAQs

5 frequently asked questions generated from this part’s specifications.
What is the maximum collector-emitter voltage of the 2N3439?

The maximum collector-emitter voltage (VCEO) is 350V.

What is the maximum collector current rating?

The maximum collector current is 1A.

What package type is the 2N3439 available in?

The 2N3439 is available in a TO-205AD, TO-39-3 metal can package (TO-39).

What is the maximum operating junction temperature?

The maximum operating junction temperature is 200°C.

Is the 2N3439 RoHS compliant?

The RoHS status is conflicting: internal data indicates RoHS3 compliant, but distributor data indicates non-RoHS. Verification is required.

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