ULN2803A
ActiveBIPOLAR (BJT) ARRAY TRANSISTOR, DARLINGTON, NPN, 50 V, 2.25 W, 500 MA, 1000, DIP ROHS COMPLIANT: YES
Deep-Dive with AI
Search across all available documentation for this part.
ULN2803A
ActiveBIPOLAR (BJT) ARRAY TRANSISTOR, DARLINGTON, NPN, 50 V, 2.25 W, 500 MA, 1000, DIP ROHS COMPLIANT: YES
Deep-Dive with AI
Technical Specifications
Parameters and characteristics for this part
| Specification | ULN2803A |
|---|---|
| Mounting Type | Through Hole |
| Package / Case | 18-DIP |
| Package / Case [x] | 0.3 in |
| Package / Case [x] | 7.62 mm |
| Supplier Device Package | 18-DIP |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Arrow | N/A | 1 | $ 1.08 | |
| 10 | $ 1.07 | |||
| 100 | $ 1.05 | |||
| 500 | $ 1.02 | |||
| 1000 | $ 1.01 | |||
| Digikey | Cut Tape (CT) | 1 | $ 1.86 | |
| 10 | $ 1.18 | |||
| 25 | $ 1.00 | |||
| 100 | $ 0.80 | |||
| 250 | $ 0.70 | |||
| 500 | $ 0.64 | |||
| 1000 | $ 0.59 | |||
| Digi-Reel® | 1 | $ 1.86 | ||
| 10 | $ 1.18 | |||
| 25 | $ 1.00 | |||
| 100 | $ 0.80 | |||
| 250 | $ 0.70 | |||
| 500 | $ 0.64 | |||
| 1000 | $ 0.59 | |||
| Tape & Reel (TR) | 2000 | $ 0.55 | ||
| 4000 | $ 0.52 | |||
| 6000 | $ 0.50 | |||
| 10000 | $ 0.48 | |||
| 14000 | $ 0.47 | |||
| 20000 | $ 0.46 | |||
| Tube | 1 | $ 2.71 | ||
| 20 | $ 2.43 | |||
| 40 | $ 2.29 | |||
| 100 | $ 1.95 | |||
| 260 | $ 1.83 | |||
| 500 | $ 1.61 | |||
| 1000 | $ 1.33 | |||
| 2500 | $ 1.24 | |||
| 5000 | $ 1.19 | |||
| Newark | Each | 1 | $ 2.31 | |
| 10 | $ 1.60 | |||
| 100 | $ 1.40 | |||
| 500 | $ 1.28 | |||
| 1000 | $ 1.21 | |||
| 3000 | $ 1.19 | |||
| 5000 | $ 1.16 | |||
Description
General part information
ULN2803A 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.
Documents
Technical documentation and resources