RN732ATTD2103C50 Equivalent & Substitute Parts

Part Overview

The RN732ATTD2103C50 is a 210 kOhms ±0.25% thin film chip resistor manufactured by KOA Speer Electronics, Inc. in 0805 (2012 Metric) package format with 0.1W power rating. This component features moisture-resistant construction and operates across the temperature range of -55°C to 155°C. The part is currently classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement continuity.

Substiute Parts

RN732ATTD2103C50

KOA Speer Electronics, Inc.In Stock: 1051RN732ATTD2103C50 Datasheet

Current PartRFQ

RN73R2ATTD2103C50

KOA Speer Electronics, Inc.In Stock: 757RN73R2ATTD2103C50 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RN732ATTD2103C50 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 210 kOhms
• Tolerance: ±0.25%
• Package / Case: 0805 (2012 Metric)
• Composition: Thin Film
• Temperature Coefficient: ±50ppm/°C
• Operating Temperature Range: -55°C ~ 155°C
• Moisture Resistant construction

Allowable Variation:

• Power rating may be equal to or greater than 0.1W
• Packaging format may differ (bulk to Tape & Reel acceptable)
• Product status may transition from obsolete to active
• Additional certifications (AEC-Q200) are permissible

The substitute part RN73R2ATTD2103C50 meets all mandatory matching parameters while offering increased power rating (0.125W) and automotive-grade qualification (AEC-Q200).

Parameter Comparison

Engineering Selection Recommendations

The RN73R2ATTD2103C50 serves as a direct functional substitute for the obsolete RN732ATTD2103C50. Both components share identical electrical specifications (210 kOhms, ±0.25% tolerance, ±50ppm/°C temperature coefficient) and mechanical compatibility (0805 package, identical dimensions).

The substitute part provides the following advantages:

• Active Product Status: RN73R2ATTD2103C50 is currently in active production, ensuring long-term availability and supply chain continuity.
• Enhanced Power Rating: The increased power rating of 0.125W (versus 0.1W) provides additional thermal margin without affecting circuit performance in applications designed for the original specification.
• Automotive Qualification: AEC-Q200 certification qualifies this component for automotive applications, expanding its use case scope.
• Regulatory Compliance: Both parts maintain ROHS3 compliance and REACH unaffected status.

Selection of RN73R2ATTD2103C50 is appropriate for all applications previously specified with RN732ATTD2103C50, with no circuit redesign required.

Frequently Asked Questions (FAQ)

Q: Can RN73R2ATTD2103C50 be used as a direct replacement for RN732ATTD2103C50?

A: Yes. Both components share identical resistance (210 kOhms), tolerance (±0.25%), package (0805), temperature coefficient (±50ppm/°C), and operating temperature range (-55°C ~ 155°C). The substitute part's higher power rating (0.125W vs. 0.1W) does not create compatibility issues.

Q: What is the difference in power rating between these parts?

A: RN732ATTD2103C50 is rated at 0.1W (1/10W), while RN73R2ATTD2103C50 is rated at 0.125W (1/8W). The higher rating in the substitute part provides additional thermal capacity and does not affect electrical performance in circuits designed for the original specification.

Q: Are there packaging differences between these parts?

A: The main part is supplied in standard packaging, while the substitute part is supplied in Tape & Reel (TR) format. Both use identical 0805 (2012 Metric) package geometry with matching dimensions (0.079" L x 0.049" W, 0.024" max height).

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

A: No. AEC-Q200 certification indicates automotive-grade qualification and represents an additional quality assurance level. This certification does not alter electrical or mechanical specifications and does not create incompatibility with non-automotive applications.

Q: Why is the original part classified as obsolete?

A: Product obsolescence is determined by the manufacturer based on production discontinuation. The RN73R2ATTD2103C50 remains in active production and provides equivalent functionality for all applications.

Q: Are moisture sensitivity levels identical?

A: Yes. Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions for storage or handling.