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2N3440 The 2N3440 is a high-voltage NPN bipolar transistor rated for 250V collector-emitter voltage and 1A continuous current. It is housed in a through-hole TO-39 metal can package.
Mfr Part #:

2N3440

Available from 1 distributors
Mfr Name: Microchip Technology
Microchip Technology
The 2N3440 is a high-voltage NPN bipolar transistor rated for 250V collector-emitter voltage and 1A continuous current. It is housed in a through-hole TO-39 metal can package.
✓ Total Stock: 25,469 pcs
$ Price Range: $13.19

2N3440 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
25,469 pcs
On Request
25469 pcs On Request 1 On Request On Request On Request On Request On Request
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2N3440 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
DC Current Gain (hFE) (Min) @ Ic, Vce
Mounting Type
Operating Temperature
Power
Supplier Device Package
Tape & Reel
Transistor Type
Vce Saturation (Max) @ Ib, Ic
Voltage
Weight
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2N3440 Description

Short technical summary and product information.

The 2N3440 is a high-frequency, epitaxial planar NPN bipolar junction transistor designed for medium power switching and amplification applications. With a collector-emitter voltage rating of 250V and continuous collector current of 1A, it is suitable for high-voltage line drivers, relay drivers, and general purpose switching circuits. The device features low saturation voltage (Vce(sat) ≤ 0.5V at 50mA) and fast switching speeds (ton ≤ 1µs, toff ≤ 10µs). Power dissipation is 800mW at 25°C ambient, derated linearly to 0W at 200°C, and 5W at 25°C case temperature. The transistor is available in a hermetically sealed TO-39 (TO-205AD) metal can package with through-hole mounting. It is qualified to MIL-PRF-19500/368 for military and high-reliability applications, with JAN, JANTX, JANTXV, and JANS levels available. Commercial grade versions are RoHS compliant. The 2N3440 operates over a junction temperature range of -65°C to 200°C.

2N3440 Quick Information

Product Type: Bipolar Junction Transistor (BJT)
Canonical Name: 2N3440 NPN Bipolar Transistor
Subcategory: Single NPN

2N3440 Compliance

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

2N3440 Estimated Pricing

Qty Low High
1+ $13.19 $13.19

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

2N3440 Features

  • High-voltage NPN transistor with 250V Vceo.
  • Continuous collector current rating of 1A.
  • Fast switching with 1µs turn-on time.
  • Low saturation voltage, 0.5V max at 50mA.
  • Hermetically sealed TO-39 metal can package.

2N3440 Applications

  • Ideal for high-reliability military and aerospace circuits.
  • Used in switching power supplies and converters.
  • Suitable for relay and solenoid driver circuits.
  • General purpose medium power amplifier.

2N3440 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage of the 2N3440?

Collector-emitter voltage (Vceo) is 250V, collector-base voltage (Vcbo) is 300V, and emitter-base voltage (Vebo) is 7V.

What is the package type for the 2N3440?

The 2N3440 is available in a TO-39 (TO-205AD) metal can package for through-hole mounting.

What is the operating temperature range?

The operating junction temperature range is -65°C to 200°C.

Is the 2N3440 RoHS compliant?

RoHS compliant versions are available for commercial grade only, per the datasheet. Note: This information is unverified and has low confidence.

What is the collector current rating?

The continuous collector current (Ic) is 1A.

What is the power dissipation?

Power dissipation is 800mW at 25°C ambient temperature, and 5W at 25°C case temperature.

What are the switching speeds?

Turn-on time (ton) is 1µs maximum, turn-off time (toff) is 10µs maximum, with test conditions specified.

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