2N6478 2N6478 is an NPN bipolar junction transistor from Harris Semiconductor. It features a collector-emitter breakdown voltage of 150V, collector current of 2.5A, and power dissipation of 50W in a TO-220-3 through-hole package.
Mfr Part #:

2N6478

Available from 1 distributors
Mfr Name: Harris Semiconductor
Harris Semiconductor
2N6478 is an NPN bipolar junction transistor from Harris Semiconductor. It features a collector-emitter breakdown voltage of 150V, collector current of 2.5A, and power dissipation of 50W in a TO-220-3 through-hole package.
✓ Total Stock: 685 pcs
$ Price Range: $1.61

2N6478 Available from 1 distributor

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✓ Non-Authorised
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685 pcs
685 pcs On Request 1 On Request On Request 93 On Request On Request

2N6478 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
Transistor Type
Vce Saturation (Max) @ Ib, Ic
Voltage

2N6478 Description

Short technical summary and product information.

The 2N6478 is an NPN bipolar junction transistor manufactured by Harris Semiconductor. It is designed for general-purpose switching and amplification applications requiring moderate voltage and current handling.

 

Key electrical specifications include a maximum collector-emitter breakdown voltage of 150V, a maximum collector current of 2.5A, and a maximum power dissipation of 50W. The device offers a minimum DC current gain (hFE) of 25 at 1A collector current and 4V collector-emitter voltage. The maximum collector-emitter saturation voltage is 2V at a base current of 500mA and collector current of 2.5A.

 

The transistor is housed in a TO-220-3 package, which is a widely used through-hole package suitable for heatsinking. It supports an operating junction temperature range from -65°C to 150°C. The TO-220-3 package allows for easy mounting on printed circuit boards or heatsinks for thermal management.

2N6478 Quick Information

Product Type: Bipolar Junction Transistor (BJT)
Canonical Name: 2N6478 NPN Bipolar Transistor
Subcategory: Single BJT

2N6478 Compliance

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

2N6478 Estimated Pricing

Qty Low High
186+ $1.61 $1.61

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

2N6478 Features

  • NPN bipolar junction transistor design.
  • 150V collector-emitter breakdown voltage.
  • 2.5A maximum collector current rating.
  • 50W maximum power dissipation capability.
  • TO-220-3 through-hole mounting package.

2N6478 Applications

  • General purpose switching and amplification circuits.
  • Power management and linear regulator stages.
  • Motor and relay driver circuits.
  • Audio amplifier output and driver stages.

2N6478 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the maximum collector-emitter voltage of the 2N6478?

The maximum collector-emitter breakdown voltage (Vce) is 150V.

What is the maximum collector current of the 2N6478?

The maximum collector current (Ic) is 2.5A.

What is the power dissipation rating of the 2N6478?

The maximum power dissipation is 50W.

What package does the 2N6478 come in?

The 2N6478 is available in a TO-220-3 through-hole package.

What is the operating temperature range of the 2N6478?

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

What is the DC current gain (hFE) of the 2N6478?

The minimum DC current gain (hFE) is 25 at Ic=1A and Vce=4V.

What is the saturation voltage of the 2N6478?

The maximum collector-emitter saturation voltage (Vce(sat)) is 2V at Ib=500mA and Ic=2.5A.

2N6478 Alternate Parts

Same form/fit/function or matching attribute configuration across different manufacturers.
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2N6478 SL
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