ULN2003APWRG4 Equivalent & Substitute Parts

Part Overview

The ULN2003APWRG4 is a Power Switch/Driver integrated circuit featuring seven NPN Darlington transistor outputs with 1:1 input-to-output ratio configuration. This component is designed for relay and solenoid driver applications, capable of switching loads up to 50V at 500mA per output channel. The ULN2003APWRG4 is classified as obsolete, which necessitates identification of functionally equivalent active alternatives for new designs and ongoing production requirements.

Substiute Parts

ULN2003APWRG4

Texas InstrumentsIn Stock: 1030ULN2003APWRG4 Datasheet

Current PartRFQ

ULN2003APWR

Texas InstrumentsIn Stock: 152228ULN2003APWR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ULN2003APWRG4 is determined by strict equivalence across the following critical parameters:

• Number of Outputs: 7 channels required
• Output Type: Darlington configuration mandatory
• Ratio - Input:Output: 1:1 relationship required
• Output Configuration: Low Side switching required
• Voltage - Load (Max): 50V maximum rating required
• Current - Output (Max): 500mA per channel required
• Input Type: Inverting logic required
• Package / Case: 16-TSSOP form factor required
• Operating Temperature Range: -40°C ~ 70°C (TA) required
• Mounting Type: Surface Mount required

The ULN2003APWR from Texas Instruments meets all specified parameters and serves as the direct functional equivalent. This part maintains identical electrical specifications, pinout compatibility, and package configuration while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

The ULN2003APWR is the appropriate substitute for the obsolete ULN2003APWRG4. Both parts are manufactured by Texas Instruments and share identical electrical and mechanical specifications. The ULN2003APWR maintains active product status, ensuring long-term availability and supply chain continuity. Both parts carry ROHS3 compliance and identical moisture sensitivity ratings, confirming regulatory and environmental equivalence. The ULN2003APWR is available in Cut Tape (CT) and Digi-Reel packaging options, providing flexibility for production volumes.

Frequently Asked Questions (FAQ)

Q: Are the ULN2003APWRG4 and ULN2003APWR pin-compatible?

A: Yes. Both parts use the 16-TSSOP package with identical pinout configuration. Direct board-level substitution is possible without layout modifications.

Q: What is the primary reason for substituting the ULN2003APWRG4?

A: The ULN2003APWRG4 is classified as obsolete. The ULN2003APWR provides identical functionality with active product status and superior availability.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the ULN2003APWRG4 and ULN2003APWR are ROHS3 compliant with identical moisture sensitivity levels (MSL 1 - Unlimited).

Q: Can the ULN2003APWR handle the same load specifications?

A: Yes. The ULN2003APWR supports identical maximum load voltage (50V) and output current (500mA per channel) specifications.

Q: Are there packaging differences between these parts?

A: The ULN2003APWRG4 packaging is not specified in available data. The ULN2003APWR is available in Cut Tape (CT) and Digi-Reel packaging formats.