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18-DIP
Discrete Semiconductor Products

ULN2801A

Active
STMicroelectronics

BIPOLAR (BJT) ARRAY TRANSISTOR, DARLINGTON, NPN, 50 V, 2.25 W, 500 MA, 1000, DIP ROHS COMPLIANT: YES

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Search across all available documentation for this part.

DocumentsDatasheetProduct Change Notice EN+1
18-DIP
Discrete Semiconductor Products

ULN2801A

Active
STMicroelectronics

BIPOLAR (BJT) ARRAY TRANSISTOR, DARLINGTON, NPN, 50 V, 2.25 W, 500 MA, 1000, DIP ROHS COMPLIANT: YES

Deep-Dive with AI

DocumentsDatasheetProduct Change Notice EN+1

Technical Specifications

Parameters and characteristics for this part

SpecificationULN2801A
Current - Collector (Ic) (Max) [Max]500 mA
DC Current Gain (hFE) (Min) @ Ic, Vce1000
Mounting TypeThrough Hole
Operating Temperature [Max]150 °C, 85 C
Operating Temperature [Min]-20 °C, -20 °C
Package / Case0.3 in
Package / Case18-DIP
Package / Case7.62 mm
Power - Max [Max]2.25 W
Supplier Device Package18-DIP
Transistor Type8 NPN Darlington
Vce Saturation (Max) @ Ib, Ic1.6 V
Voltage - Collector Emitter Breakdown (Max) [Max]50 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

DistributorPackageQuantity$
ArrowN/A 1$ 0.37
DigikeyN/A 1461$ 4.93
Tube 1$ 3.86
20$ 2.73
40$ 2.58
100$ 2.42
260$ 2.29
500$ 2.22
1000$ 2.16
2500$ 2.10

Description

General part information

ULN2801 Series

The ULN2801A, ULN2802A, ULN2803A and ULN2804A each contain eight Darlington transistors with common emitters and integral suppression diodes for inductive loads. Each Darlington features a peak load current rating of 600 mA (500 mA continuous) and can withstand at least 50 V in the OFF state. Outputs may be paralleled for higher current capability.

Four versions are available to simplify interfacing to standard logic families: the ULN2801A is designed for general purpose applications with a current limit resistor; the ULN2802A has a 10.5 kΩ input resistor and Zener for 14-25 V PMOS; the ULN2803A has a 2.7 kΩ input resistor for 5 V TTL and CMOS; the ULN2804A has a 10.5 kΩ input resistor for 6-15 V CMOS.

All types are supplied in an 18-lead plastic DIP with a copper lead form and feature the convenient input-opposite-output pinout to simplify board layout.