Mfr Part #:

ULQ2803A

The STMicroelectronics ULQ2803A is an 8 NPN Darlington transistor array designed for 50V operation and 500mA current. It features a Through Hole mounting type.

✓ Total Stock: 13,885 pcs

$ Price Range: $0.99

ULQ2803A Available from 6 distributors

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Optech Co.,Limited ✓ Non-Authorised Inventory information	8,502 pcs On Request	8502 pcs	On Request	1	On Request	On Request	07+	On Request	On Request
Components Technology Group, Inc. ✓ Non-Authorised Inventory information	4,000 pcs On Request	4000 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request
Fe Components ✓ Non-Authorised Inventory information	1,240 pcs On Request	1240 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request
Hybrid Electronics ✓ Non-Authorised Inventory information	120 pcs On Request	120 pcs	On Request	1	On Request	On Request	1999	On Request	On Request
MW.FEP S.p.A. ✓ Non-Authorised Inventory information	12 pcs On Request	12 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request
Partservice ✓ Non-Authorised Inventory information	11 pcs On Request	11 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

ULQ2803A Description

Short technical summary and product information.

The STMicroelectronics ULQ2803A is an 8-element NPN Darlington transistor array. It is rated for a maximum voltage of 50V and a continuous collector current of 500mA per channel. The array offers a high DC current gain (hFE) of 1000 minimum at 350mA and 2V.

This transistor array has a power dissipation of 2.25W and a Vce saturation voltage of 1.6V maximum at 500µA base current and 350mA collector current. It operates within a temperature range of -40°C to 105°C.

The ULQ2803A is packaged in an 18-DIP format with a 0.300" (7.62mm) pin spacing and is designed for Through Hole mounting. It is RoHS3 compliant and has a Moisture Sensitivity Level (MSL) of 1.

This component is suitable for applications requiring high-current switching or driving loads such as relays, solenoids, or incandescent lamps.

ULQ2803A Quick Information

Product Type: Transistor Array

Canonical Name: STMicroelectronics ULQ2803A 8 NPN Darlington Transistor Array

Subcategory: Transistors

ULQ2803A Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

ULQ2803A Estimated Pricing

Qty	Low	High
1+	$0.99	$0.99

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

ULQ2803A Features

8 NPN Darlington transistor array.
Rated for 50V and 500mA current.
High DC current gain of 1000.
Through Hole mounting package.
RoHS3 compliant.

ULQ2803A Applications

Ideal for driving relays and solenoids.
Suitable for incandescent lamp drivers.
Used in high-current switching applications.
General purpose high voltage driver.

ULQ2803A FAQs

7 frequently asked questions generated from this part’s specifications.

What is the collector-emitter voltage rating of ULQ2803A?

50V.

What is the maximum collector current?

500mA.

What is the minimum DC current gain?

1000 at 350mA, 2V.

What is the saturation voltage?

1.6V maximum at 500µA base current and 350mA collector current.

What is the power dissipation?

2.25W.

What is the operating temperature range?

-40°C to 105°C.

What package is ULQ2803A available in?

18-DIP (0.300", 7.62mm) through-hole package.

Category	Transistors - Bipolar (BJT) - Arrays
Manufacturer Name	STMicroelectronics
Current	500mA
DC Current Gain (hFE) (Min) @ Ic, Vce	1000 @ 350mA, 2V
Mounting Type	Through Hole
Operating Temperature	-40°C ~ 105°C
Power	2.25W
SVHC Present	Not Present
Supplier Device Package	18-DIP
Transistor Type	8 NPN Darlington
Vce Saturation (Max) @ Ib, Ic	1.6V @ 500µA, 350mA
Voltage	50V