RN732ATTD39R0D100 Equivalent & Substitute Parts

Part Overview

The RN732ATTD39R0D100 is a 39 Ohm ±0.5% 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 part is currently classified as obsolete, necessitating identification of equivalent substitute components for ongoing design requirements and procurement needs.

Substiute Parts

RN732ATTD39R0D100

KOA Speer Electronics, Inc.In Stock: 1048RN732ATTD39R0D100 Datasheet

Current PartRFQ

RN73R2ATTD39R0D100

KOA Speer Electronics, Inc.In Stock: 888RN73R2ATTD39R0D100 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RN732ATTD39R0D100 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 39 Ohms
• Tolerance: ±0.5%
• Package format: 0805 (2012 Metric)
• Composition: Thin Film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Moisture resistance capability
• RoHS3 compliance

Allowable Variation:

• Power rating may be equal to or greater than 0.1W, provided the physical dimensions remain compatible with the 0805 package specification
• Product status may differ (active vs. obsolete)
• Packaging format may vary (bulk vs. tape & reel)
• Additional certifications (such as AEC-Q200) do not disqualify a substitute

The RN73R2ATTD39R0D100 meets all mandatory matching parameters and qualifies as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

The RN73R2ATTD39R0D100 is a direct functional equivalent to the RN732ATTD39R0D100. Both components share identical electrical specifications, physical dimensions, and environmental operating parameters. The substitute part offers the following advantages:

Product Status: The RN73R2ATTD39R0D100 maintains active product status with KOA Speer Electronics, ensuring continued availability and supply chain reliability, whereas the main part is classified as obsolete.

Compliance & Certifications: Both parts maintain ROHS3 compliance and REACH unaffected status. The substitute part includes AEC-Q200 automotive qualification, which provides additional reliability assurance without introducing incompatibility.

Power Rating: The substitute part features a 0.125W (1/8W) power rating compared to the 0.1W (1/10W) rating of the main part. This higher power rating is compatible with all applications designed for the original component, as it represents increased thermal capability within the same physical package.

Packaging: The substitute part is available in tape & reel format, supporting automated assembly processes. The main part packaging format is not specified in the provided data.

Selection of the RN73R2ATTD39R0D100 is appropriate for all applications currently utilizing the RN732ATTD39R0D100.

Frequently Asked Questions (FAQ)

Q: Can the RN73R2ATTD39R0D100 be used as a direct replacement for the RN732ATTD39R0D100?

A: Yes. Both components share identical resistance value (39 Ohms), tolerance (±0.5%), package format (0805), composition (thin film), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C ~ 155°C). The substitute part meets all electrical and mechanical requirements for direct substitution.

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

A: The RN732ATTD39R0D100 is rated at 0.1W (1/10W), while the RN73R2ATTD39R0D100 is rated at 0.125W (1/8W). The higher power rating of the substitute part indicates greater thermal dissipation capability. This difference does not affect compatibility; the substitute part can be used in any application designed for the original component.

Q: Are the physical dimensions identical?

A: Yes. Both parts conform to the 0805 (2012 Metric) package specification 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 mechanically interchangeable on printed circuit boards.

Q: Does the AEC-Q200 certification on the substitute part affect compatibility?

A: No. AEC-Q200 is an automotive qualification standard that indicates additional reliability testing and quality assurance. The presence of this certification on the substitute part does not introduce incompatibility; it represents an enhancement to the component's qualification profile.

Q: What is the significance of the product status difference?

A: The RN732ATTD39R0D100 is classified as obsolete, indicating that KOA Speer Electronics has discontinued active production and support. The RN73R2ATTD39R0D100 maintains active status, ensuring ongoing availability, technical support, and supply chain continuity for new designs and production requirements.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the RN732ATTD39R0D100 and RN73R2ATTD39R0D100 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and use.

Q: What packaging options are available for the substitute part?

A: The RN73R2ATTD39R0D100 is available in tape & reel (TR) packaging format, which is standard for automated assembly processes. This packaging format supports high-volume production and pick-and-place equipment integration.