RN732ATTD1142C50 Equivalent & Substitute Parts

Part Overview

The RN732ATTD1142C50 is an 11.4 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 RN732ATTD1142C50 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this resistor specification.

Substiute Parts

RN732ATTD1142C50

KOA Speer Electronics, Inc.In Stock: 1171RN732ATTD1142C50 Datasheet

Current PartRFQ

RN73R2ATTD1142C50

KOA Speer Electronics, Inc.In Stock: 1141RN73R2ATTD1142C50 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RN732ATTD1142C50 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 11.4 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 increase from 0.1W to higher ratings (0.125W or greater) without affecting circuit compatibility, as higher power-rated components can safely operate in applications designed for lower power dissipation
• Product status may transition from obsolete to active
• Packaging format may change from bulk to Tape & Reel (TR)
• Additional certifications (such as AEC-Q200) may be present on substitute parts

The RN73R2ATTD1142C50 meets all mandatory matching parameters and represents a direct functional substitute with enhanced specifications.

Parameter Comparison

Engineering Selection Recommendations

The RN73R2ATTD1142C50 is the direct substitute for the obsolete RN732ATTD1142C50. Both components share identical electrical specifications (11.4 kOhms, ±0.25% tolerance, ±50ppm/°C temperature coefficient) and mechanical dimensions (0805 package, 2.00mm x 1.25mm).

The RN73R2ATTD1142C50 offers the following advantages:

Product Status: Active product status ensures ongoing availability and manufacturer support, eliminating supply chain risk associated with obsolete components.

Power Rating Enhancement: The increased power rating from 0.1W to 0.125W provides additional thermal margin without affecting circuit performance or physical footprint.

Automotive Qualification: The RN73R2ATTD1142C50 carries AEC-Q200 certification, indicating compliance with automotive industry reliability standards. This certification is applicable to all applications and does not restrict use in non-automotive environments.

Compliance: Both components maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment across manufacturing jurisdictions.

Packaging Flexibility: The substitute part is available in Tape & Reel (TR) format, supporting automated assembly processes while maintaining compatibility with manual placement workflows.

Frequently Asked Questions (FAQ)

Q: Can the RN73R2ATTD1142C50 be used as a direct replacement for the RN732ATTD1142C50 in existing designs?

A: Yes. The RN73R2ATTD1142C50 is a direct functional substitute. Both components have identical resistance (11.4 kOhms), tolerance (±0.25%), temperature coefficient (±50ppm/°C), operating temperature range (-55°C to 155°C), and physical dimensions (0805 package, 2.00mm x 1.25mm). No circuit modifications are required.

Q: What is the significance of the increased power rating (0.125W vs. 0.1W)?

A: The higher power rating on the RN73R2ATTD1142C50 provides additional thermal capacity. In applications where the original 0.1W component was specified, the 0.125W substitute will operate at lower junction temperatures under identical current conditions, enhancing reliability without affecting electrical performance.

Q: Does the AEC-Q200 certification on the RN73R2ATTD1142C50 restrict its use to automotive applications?

A: No. AEC-Q200 certification indicates that the component meets automotive industry reliability and qualification standards. This certification does not restrict use in non-automotive applications; it only confirms that the component exceeds automotive-grade requirements and is therefore suitable for all application categories.

Q: Are there any compatibility issues with the Tape & Reel (TR) packaging format?

A: No. Tape & Reel packaging is standard for automated assembly processes and is fully compatible with manual placement workflows. The component specifications and electrical performance are identical regardless of packaging format.

Q: What is the difference between the RN73 and RN73R series designations?

A: The RN73R series represents an enhanced product line within KOA Speer Electronics' thin film resistor portfolio. The RN73R2ATTD1142C50 maintains all electrical and mechanical specifications of the original RN732ATTD1142C50 while offering active product status, higher power rating, and automotive qualification.

Q: Are both components RoHS3 compliant?

A: Yes. Both the RN732ATTD1142C50 and RN73R2ATTD1142C50 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and distribution.