ULN2003ADR

$0.51

Description：IC PWR RELAY 7NPN 1:1 16SOIC
Series：ULx200xA

SKU:dfcea27aaabf Category: Bipolar Transistor Arrays Brand: Texas Instruments

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Product introduction

Product Detailed Parameters

Description：IC PWR RELAY 7NPN 1:1 16SOIC
Series：ULx200xA
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)
Transistor Type：-
Current - Collector (Ic) (Max)：-
Voltage - Collector Emitter Breakdown (Max)：-
Vce Saturation (Max) @ Ib, Ic：-
Current - Collector Cutoff (Max)：-
DC Current Gain (hFE) (Min) @ Ic, Vce：-
Power - Max：-
Frequency - Transition：-
Operating Temperature：-40°C ~ 70°C (TA)
Mounting Type：Surface Mount
Package / Case：16-SOIC (0.154", 3.90mm Width)
Supplier Device Package：16-SOIC
Grade：-
Qualification：-

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ULN2003ADR

Overview

The ULN2003ADR is a high-voltage, high-current Darlington transistor array manufactured by Texas Instruments. It integrates seven independent NPN Darlington pairs with common emitters and integrated clamp diodes for inductive load switching. The device features a SOIC-Narrow-16 surface-mount package designed for through-hole or SMD installation. Key electrical parameters include a maximum continuous collector current of 500 mA per channel, a collector-emitter voltage rating of 50 V, and a collector-emitter saturation voltage of 1.1 V at full load. It operates within a temperature range of -40°C to +85°C and includes internal 2.7 kΩ base resistors to ensure direct compatibility with TTL and CMOS logic families.

Feature Summary

Integrates seven independent Darlington pairs with common cathode clamp diodes for efficient inductive load management
Provides high current gain and voltage tolerance suitable for driving heavy loads directly from low-power logic sources
Features internal base resistors that enable direct interfacing with standard digital logic without additional components

Applications

Relay driver circuits
Stepper motor control systems
LED display matrix drivers
Logic buffer applications

Procurement Notes

Verify the specific manufacturer source and lot traceability when sourcing this component. Confirm that the received parts match the ULN2003ADR designation and SOIC-16 package dimensions. Ensure compliance with relevant environmental standards required for the target assembly process.

Selection Notes

Select this part when a surface-mount solution is required for driving multiple inductive loads. It serves as a direct pin-compatible alternative to the ULN2003AN DIP variant. Consider the thermal performance of the SOIC package relative to the expected duty cycle and ambient temperature conditions.

Part Context

This component belongs to the ULN200xA series of high-voltage Darlington arrays developed by Texas Instruments. It shares functional similarities with the ULQ2003A series but differs in output configuration. The ADR suffix specifically denotes the tape-and-reel packaging format intended for automated surface-mount assembly lines.