BD677AS NPN Darlington transistor, 60V collector-emitter voltage, 4A collector current, 40W power dissipation. Through-hole mounting in TO-126-3 package.
Mfr Part #:

BD677AS

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
NPN Darlington transistor, 60V collector-emitter voltage, 4A collector current, 40W power dissipation. Through-hole mounting in TO-126-3 package.
Total Stock: 3,183 pcs
$ Price Range: $0.28

BD677AS Available from 1 distributor

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BD677AS 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

BD677AS Description

Short technical summary and product information.

The BD677AS is an NPN Darlington transistor manufactured by ON Semiconductor. It features a maximum collector-emitter voltage of 60V and a maximum collector current of 4A. The device offers a minimum DC current gain (hFE) of 750 at 2A collector current and 3V collector-emitter voltage. Maximum Vce saturation is 2.8V at 40mA base current and 2A collector current. Power dissipation is rated at 40W. The transistor is designed for through-hole mounting and is available in a TO-225AA / TO-126-3 package. The operating junction temperature range extends up to 150°C. This Darlington configuration provides high current gain, making it suitable for applications requiring high amplification or switching of moderate currents.

BD677AS Quick Information

Product Type: NPN Darlington Transistor
Canonical Name: BD677AS NPN Darlington Transistor
Subcategory: NPN Darlington

BD677AS Compliance

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

BD677AS Estimated Pricing

Qty Low High
2,000+ $0.28 $0.28

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

BD677AS Features

  • NPN Darlington transistor for high gain.
  • Maximum collector-emitter voltage of 60V.
  • Maximum collector current of 4A.
  • Power dissipation rated at 40W.
  • Through-hole TO-126-3 package.

BD677AS Applications

  • Suitable for medium-power switching circuits.
  • Used in amplifier stages requiring high gain.
  • Ideal for motor control and relay drivers.
  • Applicable in power supply regulation.

BD677AS FAQs

7 frequently asked questions generated from this part’s specifications.
What is the maximum collector-emitter voltage of the BD677AS?

60V.

What package is the BD677AS available in?

TO-225AA and TO-126-3 (through-hole).

What is the maximum operating junction temperature?

150°C.

Is the BD677AS RoHS compliant?

Yes, it is listed as RoHS3 Compliant (unverified).

What is the DC current gain (hFE) of the BD677AS?

Minimum 750 at 2A collector current and 3V collector-emitter voltage.

What is the maximum power dissipation?

40W.

What is the mounting type?

Through hole.

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