ULN2802A The ULN2802A is an 8 NPN Darlington transistor array from STMicroelectronics. It features a 50V collector-emitter voltage rating, 500mA continuous collector current, and a minimum DC current gain of 1000 at 350mA, 2V.
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ULN2802A

Available from 5 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The ULN2802A is an 8 NPN Darlington transistor array from STMicroelectronics. It features a 50V collector-emitter voltage rating, 500mA continuous collector current, and a minimum DC current gain of 1000 at 350mA, 2V.
✓ Total Stock: 12,458 pcs
$ Price Range: $0.99

ULN2802A Available from 5 distributors

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ULN2802A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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AEC Qualified
Automotive Grade
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DC Current Gain (hFE) (Min) @ Ic, Vce
Industrial Grade
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Medical Grade
Military Grade
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ULN2802A Description

Short technical summary and product information.

The ULN2802A is an 8-channel NPN Darlington transistor array manufactured by STMicroelectronics. Each Darlington pair is rated for a collector-emitter voltage of 50V and a continuous collector current of 500mA, with a total power dissipation of 2.25W. The device offers a minimum DC current gain of 1000 at 350mA collector current and 2V collector-emitter voltage, with a maximum saturation voltage of 1.6V at 500µA base current and 350mA collector current.

 

The ULN2802A is housed in a standard 18-pin DIP (0.300 inch, 7.62mm) package with through-hole mounting, suitable for socketed or soldered PCB assembly. The operating junction temperature range is -20°C to 150°C.

 

This component is suitable for applications requiring multiple high-gain switching channels, such as relay drivers, stepper motor drivers, and lamp drivers, in industrial and automotive environments.

ULN2802A Quick Information

Product Type: Darlington Transistor Array
Canonical Name: ULN2802A 8 NPN Darlington Transistor Array
Subcategory: Darlington Transistor Arrays

ULN2802A Compliance

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

ULN2802A Estimated Pricing

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1+ $0.99 $0.99

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

ULN2802A Features

  • Eight NPN Darlington transistor channels.
  • Rated for 50V collector-emitter voltage.
  • Supports 500mA continuous collector current.
  • Minimum DC current gain of 1000.
  • Through-hole 18-DIP package.

ULN2802A Applications

  • Ideal for relay and solenoid drivers.
  • Used in stepper motor control circuits.
  • Suitable for high-current lamp drivers.
  • Common in industrial automation systems.

ULN2802A FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage of the ULN2802A?

The collector-emitter voltage rating is 50V.

What is the package type of the ULN2802A?

It is available in an 18-DIP (0.300", 7.62mm) through-hole package.

What is the operating temperature range?

The operating junction temperature range is -20°C to 150°C.

What is the DC current gain?

The minimum DC current gain is 1000 at 350mA collector current and 2V collector-emitter voltage.

What is the saturation voltage?

The maximum collector-emitter saturation voltage is 1.6V at 500µA base current and 350mA collector current.

What is the power dissipation?

The total power dissipation is 2.25W.

How many channels does the ULN2802A have?

It contains 8 NPN Darlington transistor channels.

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