Equivalent & Substitute Parts for RN732ATTD1141F50

Part Overview

The RN732ATTD1141F50 is a 1.14 kOhms ±1% 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 moisture-resistant construction with a temperature coefficient of ±50ppm/°C and operates across -55°C to 155°C. The part is currently classified as obsolete, necessitating identification of functionally equivalent alternatives that maintain electrical and mechanical compatibility while offering active product status and enhanced specifications where applicable.

Substiute Parts

RN732ATTD1141F50

KOA Speer Electronics, Inc.In Stock: 1166RN732ATTD1141F50 Datasheet

Current PartRFQ

RN73R2ATTD1141F50

KOA Speer Electronics, Inc.In Stock: 1128RN73R2ATTD1141F50 Datasheet

DirectRFQ

MCU08050C1141DP500

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 1122MCU08050C1141DP500 Datasheet

UpgradeRFQ

PHP00805H1141BBT1

Vishay Dale Thin FilmIn Stock: 1008PHP00805H1141BBT1 Datasheet

UpgradeRFQ

PHP00805H1141BST1

Vishay Dale Thin FilmIn Stock: 1209PHP00805H1141BST1 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RN732ATTD1141F50 is determined by strict adherence to the following critical parameters:

Mandatory Compatibility Parameters:

• Resistance value: 1.14 kOhms (exact match required)
• Package / Case: 0805 (2012 Metric) (exact match required)
• Composition: Thin Film (exact match required)
• Temperature Coefficient: ±50ppm/°C (exact match required)
• Operating Temperature Range: -55°C ~ 155°C (minimum requirement)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

Allowable Variation Parameters:

• Tolerance: May be equal to or tighter than ±1%
• Power Rating: May be equal to or greater than 0.1W
• Manufacturer: Different manufacturers permitted if all mandatory parameters match

All identified substitute parts maintain identical resistance, package, composition, temperature coefficient, and MSL specifications. Variations in tolerance and power rating represent either direct equivalents or performance upgrades suitable for direct substitution in applications designed for the RN732ATTD1141F50.

Parameter Comparison

Engineering Selection Recommendations

RN73R2ATTD1141F50 (Direct Equivalent - Recommended Primary Substitute)

This part represents the direct equivalent substitute with identical electrical specifications and active product status. It maintains ±1% tolerance matching the original RN732ATTD1141F50 while offering a higher power rating of 0.125W (1/8W). The RN73R2ATTD1141F50 includes automotive AEC-Q200 qualification, providing enhanced reliability documentation. Both ROHS3 compliance and identical MSL rating ensure seamless integration into existing designs. This substitute is suitable for direct replacement in all applications originally specified for the RN732ATTD1141F50.

MCU08050C1141DP500 (Upgrade - Enhanced Tolerance)

This Vishay part provides tighter tolerance specification at ±0.5% compared to the original ±1%, with equivalent 0.125W power rating. The anti-sulfur thin film construction offers enhanced environmental protection. ROHS3 compliance and identical operating parameters support direct substitution in applications requiring improved tolerance performance. Selection of this part is appropriate when circuit design benefits from reduced resistance variation.

PHP00805H1141BBT1 and PHP00805H1141BST1 (Upgrade - Enhanced Power & Tolerance)

Both PHP series parts deliver significantly enhanced specifications with ±0.1% tolerance and 0.63W (5/8W) power rating. These components feature flame-proof and safety-rated construction with moisture-resistant properties. PHP00805H1141BST1 maintains ROHS3 compliance, while PHP00805H1141BBT1 is RoHS non-compliant. Selection of these parts is appropriate for applications requiring higher power dissipation capability or superior tolerance performance. The increased physical height (0.033" maximum seated height versus 0.024" for the original) must be verified for PCB layout compatibility.

Frequently Asked Questions (FAQ)

Q: Can RN73R2ATTD1141F50 be used as a direct replacement for RN732ATTD1141F50?

A: Yes. The RN73R2ATTD1141F50 maintains identical resistance (1.14 kOhms), tolerance (±1%), package (0805), composition (thin film), temperature coefficient (±50ppm/°C), operating temperature range (-55°C ~ 155°C), and MSL rating (1). The higher power rating (0.125W versus 0.1W) and active product status make it a suitable direct substitute. Both parts are ROHS3 compliant.

Q: What is the difference between the MCU08050C1141DP500 and the original RN732ATTD1141F50?

A: The MCU08050C1141DP500 differs in tolerance (±0.5% versus ±1%) and power rating (0.125W versus 0.1W). All other critical parameters—resistance, package, composition, temperature coefficient, and operating range—remain identical. The tighter tolerance represents an upgrade suitable for applications requiring improved accuracy.

Q: Are the PHP series parts (PHP00805H1141BBT1 and PHP00805H1141BST1) compatible with the original design?

A: These parts are electrically compatible but feature significant physical differences. The seated height is 0.033" (0.84mm) compared to 0.024" (0.60mm) for the original. PCB layout clearance must be verified before substitution. Both parts offer enhanced tolerance (±0.1%) and power rating (0.63W), making them suitable for applications requiring higher performance specifications.

Q: Which substitute part should be selected for new designs?

A: For new designs requiring direct electrical equivalence, the RN73R2ATTD1141F50 is recommended due to its active product status, automotive AEC-Q200 qualification, and identical electrical specifications. For applications requiring enhanced tolerance or power capability, the MCU08050C1141DP500 or PHP series parts provide upgraded performance within the same 0805 package footprint.

Q: What is the significance of the MSL rating in these parts?

A: All listed parts maintain MSL rating of 1 (Unlimited), indicating no moisture sensitivity limitations. These components do not require special moisture control during storage, handling, or assembly, simplifying supply chain management and manufacturing processes.

Q: Are there any RoHS compliance considerations when selecting a substitute?

A: The RN732ATTD1141F50, RN73R2ATTD1141F50, MCU08050C1141DP500, and PHP00805H1141BST1 are all ROHS3 compliant. The PHP00805H1141BBT1 is RoHS non-compliant. For applications requiring RoHS compliance, avoid PHP00805H1141BBT1 and select from the compliant alternatives.

Q: Can these resistors be used in automotive applications?

A: The RN73R2ATTD1141F50 carries AEC-Q200 automotive qualification. The other parts do not specify automotive ratings in their provided specifications. For automotive applications, the RN73R2ATTD1141F50 is the recommended selection.