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ULN2068B The STMicroelectronics ULN2068B is a 4 NPN Darlington array transistor designed for high-voltage, high-current applications. It features a 50V rating and 1.75A current capability.
Mfr Part #:

ULN2068B

Available from 4 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The STMicroelectronics ULN2068B is a 4 NPN Darlington array transistor designed for high-voltage, high-current applications. It features a 50V rating and 1.75A current capability.
✓ Total Stock: 33,278 pcs
$ Price Range: $0.99

ULN2068B Available from 4 distributors

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Fe Components ✓
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19,905 pcs
On Request
19905 pcs On Request 1 On Request On Request On Request On Request On Request
Risen Electronics ✓
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10,000 pcs
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10000 pcs On Request 1 On Request On Request On Request On Request 2026-02-16 21:33:16
Components Technology Group, Inc. ✓
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3,362 pcs
On Request
3362 pcs On Request 1 On Request On Request On Request On Request On Request
Partservice ✓
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11 pcs
On Request
11 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

ULN2068B Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Mounting Type
Operating Temperature
Power
Supplier Device Package
Transistor Type
Vce Saturation (Max) @ Ib, Ic
Voltage
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ULN2068B Description

Short technical summary and product information.

The STMicroelectronics ULN2068B is a quad NPN Darlington transistor array housed in a 16-PowerDIP package. This component is designed for applications requiring high current switching capabilities, offering a voltage rating of 50V and a continuous collector current of 1.75A per channel.

 

Key electrical characteristics include a Vce saturation of 1.4V at 2mA/1.25A, making it suitable for driving loads such as relays, solenoids, and lamps. The device operates within a temperature range of -20°C to 85°C (TA).

 

With its through-hole mounting type, the ULN2068B is easily integrated into various electronic circuits. Its Darlington configuration provides high current gain, simplifying driver circuitry for demanding applications.

ULN2068B Quick Information

Product Type: Transistor Array
Canonical Name: ULN2068B 4 NPN Darlington Array Transistor
Subcategory: NPN Darlington

ULN2068B Compliance

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

ULN2068B Estimated Pricing

Qty Low High
1+ $0.99 $0.99

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

ULN2068B Features

  • Four NPN Darlington transistors in one package.
  • Rated for 50V collector-emitter voltage.
  • Handles 1.75A continuous collector current.
  • Through-hole mounting for easy integration.
  • Suitable for driving high-current loads.

ULN2068B Applications

  • Ideal for relay and solenoid driving.
  • Used in lamp and LED control circuits.
  • Suitable for general purpose switching.
  • Power driver applications.

ULN2068B FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage of the ULN2068B?

50V.

What package is the ULN2068B available in?

16-PowerDIP (0.300", 7.62mm) through-hole package.

What is the operating temperature range?

-20°C to 85°C.

What is the maximum collector current?

1.75A.

What is the power dissipation rating?

1W.

What is the Vce saturation voltage?

1.4V at 2mA base current and 1.25A collector current.

How many transistors are in the array?

4 NPN Darlington (Quad).

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