RN732ATTD3010D50 Equivalent & Substitute Parts

Part Overview

The RN732ATTD3010D50 is a 301 Ohm thin film chip resistor manufactured by KOA Speer Electronics, Inc., rated at 0.1W (1/10W) in 0805 (2012 Metric) package format. This component features ±0.5% tolerance, moisture resistance, and operates across -55°C to 155°C. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement continuity.

Substiute Parts

RN732ATTD3010D50

KOA Speer Electronics, Inc.In Stock: 820RN732ATTD3010D50 Datasheet

Current PartRFQ

RN73R2ATTD3010D50

KOA Speer Electronics, Inc.In Stock: 1112RN73R2ATTD3010D50 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RN732ATTD3010D50 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 301 Ohms
• Tolerance: ±0.5%
• Package format: 0805 (2012 Metric)
• Composition: Thin Film
• Temperature coefficient: ±50ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Moisture resistance capability
• RoHS3 compliance

Allowable Variation:

• Power rating may be equal or higher (uprating is acceptable; downrating is not)
• Product status may differ (active substitutes are preferred for obsolete parts)
• Packaging format (bulk vs. tape & reel) does not affect electrical equivalence

The RN73R2ATTD3010D50 meets all mandatory matching parameters and provides an uprated power specification (0.125W vs. 0.1W), making it a direct electrical and mechanical substitute.

Parameter Comparison

Engineering Selection Recommendations

The RN73R2ATTD3010D50 is the direct substitute for the obsolete RN732ATTD3010D50. Both components share identical electrical specifications (301 Ohms, ±0.5% tolerance, ±50ppm/°C temperature coefficient) and mechanical dimensions (0805 package, 2.00mm x 1.25mm).

The substitute part provides a higher power rating (0.125W vs. 0.1W), which represents an uprating and does not compromise circuit performance. The substitute maintains full compliance with ROHS3 and carries Moisture Sensitivity Level 1 (Unlimited), matching the original part's environmental specifications.

The RN73R2ATTD3010D50 holds active product status and includes AEC-Q200 automotive qualification, providing enhanced supply chain availability and reliability assurance. Both parts are manufactured by the same supplier, ensuring consistent quality and performance characteristics.

Frequently Asked Questions (FAQ)

Q: Can the RN73R2ATTD3010D50 be used as a direct replacement for the RN732ATTD3010D50?

A: Yes. Both parts are electrically and mechanically equivalent. They share identical resistance (301 Ohms), tolerance (±0.5%), temperature coefficient (±50ppm/°C), operating temperature range (-55°C ~ 155°C), and package dimensions (0805, 2.00mm x 1.25mm). The substitute has a higher power rating (0.125W vs. 0.1W), which is acceptable for direct substitution.

Q: What is the significance of the power rating difference?

A: The RN73R2ATTD3010D50 is rated at 0.125W (1/8W) compared to the original 0.1W (1/10W). A higher power rating indicates greater thermal dissipation capability. This uprating does not affect circuit compatibility and provides additional thermal margin in the application.

Q: Are there packaging differences between these parts?

A: The RN732ATTD3010D50 is supplied in standard packaging, while the RN73R2ATTD3010D50 is available in Tape & Reel (TR) format. Both use the identical 0805 (2012 Metric) package case. Tape & Reel packaging is standard for automated assembly processes and does not affect component performance or footprint compatibility.

Q: What does AEC-Q200 qualification mean?

A: AEC-Q200 is an automotive industry standard qualification for passive components. The RN73R2ATTD3010D50 meets this standard, indicating it has undergone rigorous testing for automotive applications. This certification does not restrict use in non-automotive applications and provides additional quality assurance.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the RN732ATTD3010D50 and RN73R2ATTD3010D50 are ROHS3 compliant, confirming they meet restrictions on hazardous substances in electrical and electronic equipment.

Q: What is Moisture Sensitivity Level 1?

A: MSL 1 (Unlimited) indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. Both parts carry this rating, eliminating moisture-related procurement or storage constraints.