RN732ATTD1272F10 Equivalent & Substitute Parts

Part Overview

The RN732ATTD1272F10 is a 12.7 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 ±10ppm/°C and operates across the temperature range of -55°C to 155°C.

The RN732ATTD1272F10 is classified as obsolete. Locating equivalent or substitute components becomes necessary when original stock is depleted or when design flexibility permits the use of functionally compatible alternatives that meet or exceed the original specifications.

Substiute Parts

RN732ATTD1272F10

KOA Speer Electronics, Inc.In Stock: 733RN732ATTD1272F10 Datasheet

Current PartRFQ

RN73R2ATTD1272F10

KOA Speer Electronics, Inc.In Stock: 1171RN73R2ATTD1272F10 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RN732ATTD1272F10 is determined by strict equivalence in the following critical parameters:

Mandatory Equivalence Parameters:

• Resistance value: 12.7 kOhms
• Tolerance: ±1%
• Package / Case: 0805 (2012 Metric)
• Composition: Thin Film
• Temperature Coefficient: ±10ppm/°C
• Operating Temperature Range: -55°C to 155°C
• Moisture Resistant construction

Allowable Variation Parameters:

• Power Rating: The substitute part may have equal or higher power rating than the original 0.1W specification
• Product Status: Active status is preferred over obsolete status
• Certifications and Compliance: Additional certifications (such as AEC-Q200) do not disqualify a substitute

The RN73R2ATTD1272F10 meets all mandatory equivalence parameters and qualifies as a direct substitute. This part maintains identical electrical characteristics while offering higher power rating (0.125W vs. 0.1W) and active product status with automotive qualification.

Parameter Comparison

Engineering Selection Recommendations

The RN73R2ATTD1272F10 is a qualified substitute for the RN732ATTD1272F10 based on the following engineering criteria:

Electrical Compatibility: Both parts maintain identical resistance (12.7 kOhms), tolerance (±1%), 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.

Physical Compatibility: Both components share identical package dimensions (0805 / 2012 Metric), footprint, and termination configuration, ensuring direct PCB compatibility without layout modifications.

Regulatory Compliance: Both parts are ROHS3 compliant and REACH unaffected. The substitute carries additional AEC-Q200 automotive qualification, which does not restrict its use in non-automotive applications.

Product Availability: The RN73R2ATTD1272F10 maintains active product status with established supply chain availability, whereas the RN732ATTD1272F10 is obsolete. Selection of the substitute ensures long-term component sourcing reliability.

Frequently Asked Questions (FAQ)

Q: Can the RN73R2ATTD1272F10 be used as a direct replacement for the RN732ATTD1272F10?

A: Yes. Both parts are electrically and mechanically equivalent. They share identical resistance value, tolerance, temperature coefficient, operating temperature range, package format, and physical dimensions. The substitute's higher power rating (0.125W vs. 0.1W) is compatible with circuits designed for the original 0.1W specification.

Q: What is the difference in power rating between these two resistors?

A: The RN732ATTD1272F10 is rated at 0.1W (1/10W), while the RN73R2ATTD1272F10 is rated at 0.125W (1/8W). The substitute can dissipate 25% more power. In applications where the original part operates below its power rating, this difference has no practical impact on circuit operation.

Q: Are the physical dimensions identical?

A: Yes. Both resistors use the 0805 (2012 Metric) package with dimensions of 0.079" L x 0.049" W (2.00mm x 1.25mm) and maximum seated height of 0.024" (0.60mm). They are footprint-compatible without PCB redesign.

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

A: No. AEC-Q200 is an automotive qualification standard. Parts meeting this standard exceed general industrial requirements and are fully compatible with non-automotive applications. The certification represents an additional quality assurance measure.

Q: Are both parts RoHS compliant?

A: Yes. Both the RN732ATTD1272F10 and RN73R2ATTD1272F10 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What is the temperature coefficient specification, and is it identical between both parts?

A: Both parts have a temperature coefficient of ±10ppm/°C, indicating that resistance changes by a maximum of 10 parts per million for each degree Celsius change in operating temperature. This specification is identical and ensures equivalent temperature stability.

Q: Can these resistors be used in high-temperature applications?

A: Yes. Both parts are rated for operation across the temperature range of -55°C to 155°C, supporting applications requiring extended temperature performance within this range.