ULN2803 The ULN2803 from MSKSEMI is a high-current Darlington transistor array featuring eight open-collector pairs. It is designed for driving a wide range of loads.
Mfr Part #:

ULN2803

Available from 1 distributors
Mfr Name: Msksemi
Msksemi
The ULN2803 from MSKSEMI is a high-current Darlington transistor array featuring eight open-collector pairs. It is designed for driving a wide range of loads.
Total Stock: 2,651 pcs
$ Price Range: $0.99

ULN2803 Available from 1 distributor

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ULN2803 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Input Capacitance
Input Voltage
Mounting Type
Operating Temperature

ULN2803 Description

Short technical summary and product information.

The ULN2803 is a high-voltage, high-current Darlington transistor array manufactured by MSKSEMI. It contains eight open-collector common-emitter pairs, each rated at 500 mA. The device features high-voltage outputs up to 50V and includes output clamp diodes for inductive load driving.

 

Designed for versatility, the ULN2803 is suitable for driving loads such as solenoids, relays, DC motors, LED displays, and thermal print-heads. Its inputs are compatible with various logic types, and the pinout is arranged to simplify board layout.

 

This array is available in the SOP-18 package, suitable for surface mount applications. The operating temperature range is from -30°C to +105°C, making it robust for various environmental conditions. The device also includes suppression diodes for inductive load driving.

 

Key electrical characteristics include a collector-emitter voltage of 50V, peak collector current of 500mA, and output clamp current of 500mA. The operating temperature range is specified from -30°C to +105°C.

ULN2803 Quick Information

Product Type: Darlington Transistor Array
Series: ULN2803
Canonical Name: ULN2803 Darlington Transistor Array
Subcategory: Darlington Transistor Array

ULN2803 Compliance

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

ULN2803 Estimated Pricing

Qty Low High
1+ $0.99 $0.99

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

ULN2803 Features

  • Eight open-collector Darlington pairs
  • 500-mA rated collector current per output
  • 50V high-voltage outputs
  • Includes output clamp diodes
  • SOP-18 surface mount package

ULN2803 Applications

  • Ideal for relay driver applications
  • Suitable for solenoid driving
  • Drives DC motors and LED displays
  • Used for thermal print-heads
  • High-power buffer applications

ULN2803 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage of the ULN2803?

The collector-emitter voltage rating is 50V.

What package is the ULN2803 available in?

The ULN2803 is available in a SOP-18 package.

What is the operating temperature range of the ULN2803?

The operating free-air temperature range is -30°C to +105°C.

What is the maximum collector current per channel?

The peak collector current is 500mA.

Does the ULN2803 include clamp diodes?

Yes, the device includes internal clamp diodes with reverse voltage rating of 50V.

What is the input voltage rating?

The input voltage rating is 30V.

What is the junction-to-ambient thermal resistance?

63°C/W.

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