RN732ATTD1201C50 Equivalent & Substitute Parts

Part Overview

The RN732ATTD1201C50 is a 1.2 kOhms ±0.25% thin film chip resistor in 0805 (2012 Metric) package rated for 0.1W (1/10W) power dissipation. This component is manufactured by KOA Speer Electronics, Inc. and features moisture-resistant construction with a temperature coefficient of ±50ppm/°C and operating range of -55°C to 155°C.

The RN732ATTD1201C50 carries an Obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for systems utilizing this resistor specification.

Substiute Parts

RN732ATTD1201C50

KOA Speer Electronics, Inc.In Stock: 1078RN732ATTD1201C50 Datasheet

Current PartRFQ

RN73R2ATTD1201C50

KOA Speer Electronics, Inc.In Stock: 1149RN73R2ATTD1201C50 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RN732ATTD1201C50 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 1.2 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 feature

Allowable Variation:

• Power rating may be equal to or greater than the original specification (0.1W minimum)
• Product status may transition from Obsolete to Active
• Packaging format may differ (bulk to Tape & Reel)
• Additional certifications (such as AEC-Q200) do not disqualify a substitute

The substitute part RN73R2ATTD1201C50 meets all mandatory matching parameters and exceeds the power rating specification, making it a valid electrical and mechanical equivalent.

Parameter Comparison

Engineering Selection Recommendations

The RN73R2ATTD1201C50 is a direct substitute for the RN732ATTD1201C50 based on electrical and mechanical equivalence. The substitute part maintains identical resistance, tolerance, package dimensions, thermal characteristics, and moisture resistance properties.

The RN73R2ATTD1201C50 provides the following advantages:

• Active Product Status: The substitute maintains current manufacturing and supply chain support, eliminating obsolescence risk associated with the original part.
• Enhanced Power Rating: The 0.125W (1/8W) rating exceeds the original 0.1W specification, providing additional thermal margin in the application.
• Automotive Qualification: AEC-Q200 certification indicates compliance with automotive reliability standards, adding robustness without compromising general-purpose applications.
• Regulatory Compliance: Both ROHS3 and REACH compliance are maintained.

Selection of the RN73R2ATTD1201C50 is appropriate for direct replacement in applications where the RN732ATTD1201C50 was originally specified.

Frequently Asked Questions (FAQ)

Q: Can the RN73R2ATTD1201C50 be used as a direct replacement for the RN732ATTD1201C50?

A: Yes. The RN73R2ATTD1201C50 is electrically and mechanically equivalent. Both parts share identical resistance (1.2 kOhms), tolerance (±0.25%), package (0805), composition (thin film), temperature coefficient (±50ppm/°C), and operating temperature range (-55°C ~ 155°C). The substitute part's higher power rating (0.125W vs. 0.1W) and additional AEC-Q200 certification do not prevent substitution.

Q: What is the significance of the higher power rating on the substitute part?

A: The RN73R2ATTD1201C50 is rated for 0.125W compared to the original 0.1W rating. This higher power dissipation capability provides additional thermal margin and does not negatively impact circuit performance. The substitute will operate cooler under identical load conditions.

Q: Does the AEC-Q200 automotive qualification affect use in non-automotive applications?

A: No. AEC-Q200 certification indicates enhanced reliability testing and qualification for automotive environments. This certification does not restrict use in general-purpose, industrial, or consumer applications. The part remains fully compatible with all applications suitable for the original RN732ATTD1201C50.

Q: Are the physical dimensions identical between the two parts?

A: Yes. Both parts are packaged in 0805 (2012 Metric) format with identical dimensions: 0.079" L x 0.049" W (2.00mm x 1.25mm) and maximum seated height of 0.024" (0.60mm). PCB footprints and assembly processes require no modification.

Q: What is the difference between the packaging formats listed?

A: The RN732ATTD1201C50 is supplied in standard packaging, while the RN73R2ATTD1201C50 is supplied in Tape & Reel (TR) format. Tape & Reel packaging is standard for automated assembly processes and does not affect component electrical or mechanical properties. Both formats contain identical components.

Q: Are both parts RoHS3 and REACH compliant?

A: Yes. Both the RN732ATTD1201C50 and RN73R2ATTD1201C50 are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements.