RN732ATTD3091D10 Equivalent & Substitute Parts

Part Overview

The RN732ATTD3091D10 is a 3.09 kOhms ±0.5% 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 ±10ppm/°C and operating range of -55°C to 155°C.

The RN732ATTD3091D10 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

RN732ATTD3091D10

KOA Speer Electronics, Inc.In Stock: 1137RN732ATTD3091D10 Datasheet

Current PartRFQ

RN73R2ATTD3091D10

KOA Speer Electronics, Inc.In Stock: 1170RN73R2ATTD3091D10 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RN732ATTD3091D10 is determined by strict equivalence in the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 3.09 kOhms
• Tolerance: ±0.5%
• Package / Case: 0805 (2012 Metric)
• Composition: Thin Film
• Temperature Coefficient: ±10ppm/°C
• Operating Temperature Range: -55°C to 155°C
• Moisture Resistant construction
• RoHS3 Compliance

Allowable Variation:

• Power rating may be equal to or greater than 0.1W
• Product status may differ (Active vs. Obsolete)
• Packaging format may differ (Tape & Reel vs. other formats)
• Additional certifications (such as AEC-Q200) do not disqualify a substitute

The substitute part RN73R2ATTD3091D10 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 RN73R2ATTD3091D10 is a direct electrical and mechanical substitute for the RN732ATTD3091D10 based on the following engineering criteria:

Electrical Equivalence: Both parts share identical resistance (3.09 kOhms), tolerance (±0.5%), temperature coefficient (±10ppm/°C), and operating temperature range (-55°C to 155°C). The substitute's higher power rating (0.125W vs. 0.1W) provides additional thermal margin without affecting circuit performance.

Mechanical Compatibility: Both components utilize the 0805 (2012 Metric) package with identical physical dimensions (0.079" L x 0.049" W, 2.00mm x 1.25mm) and height (0.024" maximum seated height). PCB footprints and assembly processes are directly compatible.

Compliance and Certifications: Both parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. The substitute includes AEC-Q200 automotive qualification, which does not restrict its use in non-automotive applications.

Supply Availability: The RN73R2ATTD3091D10 carries Active product status with confirmed inventory availability, addressing the obsolescence of the original part.

Frequently Asked Questions (FAQ)

Q: Can the RN73R2ATTD3091D10 be used as a direct replacement for the RN732ATTD3091D10 in existing designs?

A: Yes. Both parts are electrically and mechanically equivalent. They share identical resistance, tolerance, temperature coefficient, operating range, and 0805 package dimensions. The substitute's higher power rating (0.125W) does not create compatibility issues.

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

A: The RN73R2ATTD3091D10 is rated for 0.125W (1/8W) compared to the original 0.1W (1/10W). This higher rating provides additional thermal headroom and does not affect electrical performance. The component will operate safely in circuits designed for the lower power specification.

Q: Are there packaging differences between these parts?

A: The main part (RN732ATTD3091D10) and substitute (RN73R2ATTD3091D10) both use the 0805 (2012 Metric) package. Physical dimensions and PCB footprints are identical. The substitute may be supplied in Tape & Reel format, which is standard for active production parts.

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

A: No. AEC-Q200 certification indicates the part meets automotive reliability standards and does not restrict its application in other industries. It represents an additional qualification level that enhances overall component reliability.

Q: Are both parts RoHS compliant?

A: Yes. Both the RN732ATTD3091D10 and RN73R2ATTD3091D10 are ROHS3 compliant with identical moisture sensitivity levels (MSL 1, Unlimited).

Q: Why is the original part marked as Obsolete?

A: The RN732ATTD3091D10 has been discontinued by the manufacturer. The RN73R2ATTD3091D10 represents the active production equivalent that maintains full electrical and mechanical compatibility while ensuring ongoing supply availability.