RN731ETTP2340C50 Equivalent & Substitute Parts

Part Overview

The RN731ETTP2340C50 is a 234 Ohm ±0.25% thin film chip resistor in 0402 (1005 Metric) package rated at 0.063W (1/16W). Manufactured by KOA Speer Electronics, Inc., this component features moisture-resistant construction and operates across -55°C to 155°C. The part is currently obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement.

Substiute Parts

RN731ETTP2340C50

KOA Speer Electronics, Inc.In Stock: 900RN731ETTP2340C50 Datasheet

Current PartRFQ

RN73R1ETTP2340C50

KOA Speer Electronics, Inc.In Stock: 674RN73R1ETTP2340C50 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RN731ETTP2340C50 is determined by strict equivalence across the following parameters: resistance value (234 Ohms), tolerance (±0.25%), power rating (0.063W), package type (0402), composition (thin film), temperature coefficient (±50ppm/°C), operating temperature range (-55°C to 155°C), and regulatory compliance (ROHS3, REACH Unaffected). The RN73R1ETTP2340C50 meets all these criteria while offering active product status and automotive-grade qualification (AEC-Q200), making it a direct functional equivalent.

Parameter Comparison

Engineering Selection Recommendations

The RN73R1ETTP2340C50 is the direct substitute for the obsolete RN731ETTP2340C50. Both parts share identical electrical specifications, mechanical dimensions, and regulatory compliance. The substitute part maintains active product status with KOA Speer Electronics, ensuring continued availability and supply chain reliability. The RN73R1ETTP2340C50 carries AEC-Q200 automotive qualification, providing enhanced reliability assurance suitable for applications requiring automotive-grade components. Selection of the substitute part eliminates obsolescence risk while maintaining full functional and mechanical compatibility.

Frequently Asked Questions (FAQ)

Q: Can RN73R1ETTP2340C50 be used as a direct replacement for RN731ETTP2340C50?

A: Yes. Both parts are electrically and mechanically identical with matching resistance (234 Ohms), tolerance (±0.25%), power rating (0.063W), package (0402), and operating specifications. The substitute part is pin-compatible and footprint-compatible.

Q: What is the difference between these two part numbers?

A: The primary difference is product status and automotive qualification. RN731ETTP2340C50 is obsolete, while RN73R1ETTP2340C50 is active and carries AEC-Q200 automotive certification. Electrically and mechanically, they are equivalent.

Q: Are there packaging differences between these parts?

A: The main part (RN731ETTP2340C50) packaging is not specified in available data. The substitute part (RN73R1ETTP2340C50) is supplied in Tape & Reel (TR) format. Both use identical 0402 (1005 Metric) package dimensions.

Q: Does the AEC-Q200 rating on the substitute part affect compatibility?

A: No. AEC-Q200 is an additional qualification that enhances reliability assurance. It does not alter electrical or mechanical characteristics, making the substitute part suitable for both automotive and general industrial applications.

Q: Are both parts RoHS compliant?

A: Yes. Both RN731ETTP2340C50 and RN73R1ETTP2340C50 are ROHS3 compliant and REACH unaffected, meeting current environmental regulations.