ULN2066B The STMicroelectronics ULN2066B is a quad NPN Darlington transistor array designed for various applications. It offers a 50V voltage rating and 1.75A current handling capability.
Mfr Part #:

ULN2066B

Available from 2 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The STMicroelectronics ULN2066B is a quad NPN Darlington transistor array designed for various applications. It offers a 50V voltage rating and 1.75A current handling capability.
✓ Total Stock: 4,924 pcs
$ Price Range: $0.99

ULN2066B Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
4,512 pcs
4512 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
412 pcs
412 pcs On Request 1 On Request On Request 21+ On Request On Request

ULN2066B Specifications Quick View

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

ULN2066B Description

Short technical summary and product information.

The STMicroelectronics ULN2066B is a transistor array featuring four NPN Darlington transistors in a single package. This component is designed for applications requiring multiple switching elements, offering a voltage rating of 50V and a continuous collector current of 1.75A per channel. The Vce saturation is specified at a maximum of 1.4V at 2mA base current and 1.25A collector current.

 

This transistor array is housed in a 16-PowerDIP package with a 0.300-inch (7.62mm) lead spacing, suitable for through-hole mounting. It operates within a temperature range of -20°C to 85°C (TA) and has a power dissipation of 1W. The ULN2066B is RoHS3 compliant and has an MSL 1 rating, indicating unlimited shelf life under standard conditions.

 

Its design makes it suitable for driving loads such as relays, solenoids, and incandescent lamps. The Darlington configuration provides high current gain, simplifying drive circuitry for higher current loads.

ULN2066B Quick Information

Product Type: Transistor Array
Canonical Name: STMicroelectronics ULN2066B Transistor Array
Subcategory: Transistor Arrays

ULN2066B Compliance

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

ULN2066B Estimated Pricing

Qty Low High
1+ $0.99 $0.99

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

ULN2066B 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.
  • Operates from -20°C to 85°C.

ULN2066B Applications

  • Ideal for driving relays and solenoids.
  • Suitable for lamp and LED drivers.
  • Used in power switching applications.
  • Component for control circuitry.

ULN2066B FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage of the ULN2066B?

50V (collector-emitter).

What is the package type of the ULN2066B?

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

What is the operating temperature range of the ULN2066B?

-20°C to +85°C (ambient).

What is the collector current rating of the ULN2066B?

1.75A.

What is the power dissipation of the ULN2066B?

1W.

How many transistors are in the ULN2066B?

4 NPN Darlington pairs (quad).

What is the saturation voltage of the ULN2066B?

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

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