ULN2803 Datasheet – Eight Darlington arrays – Allegro

Part Number: ULN2803, ULN2803A, ULN2803LW, ULN2804A, ULN2804LW


Package: 16 Pin Type ( DIP, SMD )

Manufacturer: Allegro MicroSystems


uln2803 darlington arrays


The ULx2803A/LW and ULx2804A / LW are the standard Darlington arrays. The outputs are capable of sinking 500 mA and will withstand at least 50 V in the off state. Outputs may be paralleled for higher load current capability. The ULx2823A / LW and ULx2824A / LW will withstand 95 V in the off state.
These Darlington arrays are furnished in 18-pin dual in-line plastic packages (suffix ‘A’) or 18-lead small-outline plastic packages (suffix ‘LW’). All devices are pinned with outputs opposite inputs to facilitate ease of circuit board layout. Prefix ‘ULN’ devices are rated for operation over the temperature range of -20°C to +85°C; prefix ‘ULQ’ devices are rated for operation to -40°C.


uln2803 datasheet pdf


1. TTL, DTL, PMOS, or CMOS Compatible Inputs

2. Output Current to 500 mA

3. Output Voltage to 95 V

4. Transient-Protected Outputs

5. Dual In-Line Package or Wide-Body Small-Outline Package

ULN2803 Datasheet

ULN2803 pdf


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2SB1228 Datasheet – 110V, 8A, PNP Darlington Transistor

Part Number: 2SB1228

Function: 110V, 8A, PNP Silicon Darlington Transistor

Package: TO-220ML Type

Manufacturer: SANYO (Panasonic)


2SB1228 datasheet



1. High DC current gain.
2. Large current capacity and wide ASO.
3. Low saturation voltage.
4. Micaless package facilitating mounting.

Electrical Connection

2SB1228 darlington transistor

Absolute Maximum Ratings ( Ta=25’C )

1. Collector-to-Base Voltage : VCBO =  – 110 V
2. Collector-to-Emitter Voltage : VCEO = – 100 V
3. Emitter-to-Base Voltage : VEBO = – 6 V
4. Collector Current : IC = – 8 A
5. Collector Current (Pulse) : ICP =  – 12 A
6. Collector Dissipation : PC = 2 W


Applications  :

1. Suitable for use in control of motor drivers, printer hammer drivers
2. Relay drivers, and constant-voltage regulators.


Other data sheets are available within the file: 2SD1830, D1830

2SB1228 Datasheet PDF Download

2SB1228 pdf

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