RN732ATTD75R9C50 Equivalent & Substitute Parts

Part Overview

The RN732ATTD75R9C50 is a 75.9 Ohm ±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 is classified as obsolete product status, necessitating identification of active equivalent alternatives for ongoing design requirements and procurement continuity.

Substiute Parts

RN732ATTD75R9C50

KOA Speer Electronics, Inc.In Stock: 736RN732ATTD75R9C50 Datasheet

Current PartRFQ

RN73R2ATTD75R9C50

KOA Speer Electronics, Inc.In Stock: 1020RN73R2ATTD75R9C50 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RN732ATTD75R9C50 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 75.9 Ohms
• Tolerance: ±0.25%
• Package / Case: 0805 (2012 Metric)
• Composition: Thin Film
• Temperature Coefficient: ±50ppm/°C
• Operating Temperature Range: -55°C ~ 155°C
• Moisture Sensitivity Level: 1 (Unlimited)
• RoHS Status: ROHS3 Compliant

Allowable Variation:

• Power Rating: Substitute parts may have equal or higher power rating (0.1W or greater)
• Product Status: Active status preferred for procurement continuity
• Packaging Format: Tape & Reel acceptable as alternative to standard packaging

The RN73R2ATTD75R9C50 qualifies as a direct substitute based on matching all mandatory parameters while providing enhanced power rating (0.125W vs 0.1W) and active product status.

Parameter Comparison

Engineering Selection Recommendations

The RN73R2ATTD75R9C50 is the qualified substitute for the obsolete RN732ATTD75R9C50 based on the following engineering criteria:

Product Status Advantage: The substitute part maintains active product status with KOA Speer Electronics, Inc., ensuring long-term availability and supply chain continuity compared to the obsolete main part.

Electrical Equivalence: All critical electrical parameters are identical, including resistance value (75.9 Ohms), tolerance (±0.25%), temperature coefficient (±50ppm/°C), and operating temperature range (-55°C ~ 155°C).

Power Rating Enhancement: The substitute provides 0.125W power rating versus the main part's 0.1W rating. This represents a 25% increase in power dissipation capability, maintaining full backward compatibility for applications requiring the original 0.1W specification.

Compliance Certification: Both parts maintain ROHS3 compliance and identical moisture sensitivity ratings (MSL 1 - Unlimited), ensuring regulatory and environmental compatibility.

Mechanical Compatibility: Identical 0805 (2012 Metric) package dimensions and height specifications ensure direct PCB footprint compatibility without layout modifications.

Automotive Qualification: The substitute part includes AEC-Q200 automotive qualification, providing enhanced reliability documentation for applications requiring automotive-grade components.

Frequently Asked Questions (FAQ)

Q: Can RN73R2ATTD75R9C50 be used as a direct replacement for RN732ATTD75R9C50 in existing designs?

A: Yes. The substitute part is electrically and mechanically equivalent. All critical parameters including resistance, tolerance, temperature coefficient, and package dimensions are identical. The higher power rating (0.125W vs 0.1W) provides additional thermal margin without affecting circuit performance.

Q: What is the significance of the power rating difference between the two parts?

A: The RN73R2ATTD75R9C50 provides 0.125W power rating compared to the main part's 0.1W. This allows the substitute to dissipate 25% more power while maintaining identical electrical characteristics. For applications operating at or below the original 0.1W specification, this difference has no impact on performance.

Q: Are there packaging format differences between these parts?

A: The main part uses standard packaging, while the substitute is supplied in Tape & Reel (TR) format. Both contain identical components in 0805 (2012 Metric) packages. Tape & Reel format is standard for high-volume manufacturing and automated assembly processes.

Q: Does the AEC-Q200 automotive qualification on the substitute part affect non-automotive applications?

A: No. AEC-Q200 qualification represents additional testing and quality assurance beyond standard requirements. Non-automotive applications benefit from this enhanced reliability documentation without any negative effects.

Q: Are the tolerance and temperature coefficient specifications identical?

A: Yes. Both parts specify ±0.25% tolerance and ±50ppm/°C temperature coefficient. These critical precision parameters are identical, ensuring equivalent performance in precision circuit applications.

Q: What is the moisture sensitivity level for both parts?

A: Both parts have Moisture Sensitivity Level (MSL) 1, classified as Unlimited. This indicates minimal moisture absorption risk and no special storage or handling requirements beyond standard component practices.

Q: Is the operating temperature range the same for both parts?

A: Yes. Both parts operate across -55°C to 155°C temperature range with identical temperature coefficient specifications, ensuring equivalent thermal performance characteristics.