RN732ATTD3003F100 Equivalent & Substitute Parts

Part Overview

The RN732ATTD3003F100 is a 300 kOhms ±1% thin film chip resistor rated at 0.1W (1/10W) in 0805 (2012 Metric) package format, manufactured by KOA Speer Electronics, Inc. This component features moisture-resistant construction and operates across the temperature range of -55°C to 155°C.

The RN732ATTD3003F100 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this resistor specification.

Substiute Parts

RN732ATTD3003F100

KOA Speer Electronics, Inc.In Stock: 1152RN732ATTD3003F100 Datasheet

Current PartRFQ

RN73R2ATTD3003F100

KOA Speer Electronics, Inc.In Stock: 1129RN73R2ATTD3003F100 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RN732ATTD3003F100 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance Value: 300 kOhms
• Tolerance: ±1%
• Package / Case: 0805 (2012 Metric)
• Composition: Thin Film
• Temperature Coefficient: ±100ppm/°C
• Operating Temperature Range: -55°C ~ 155°C
• Moisture Resistant Construction
• RoHS3 Compliance

Allowable Variation:

• Power Rating: The substitute part may have equal or higher power rating than the original specification (0.1W minimum)
• Product Status: Active status substitutes are acceptable for obsolete parts
• Certifications: Additional certifications (such as AEC-Q200) do not disqualify a substitute

The RN73R2ATTD3003F100 meets all mandatory matching parameters and qualifies as a direct substitute with enhanced specifications.

Parameter Comparison

Engineering Selection Recommendations

The RN73R2ATTD3003F100 is a qualified substitute for the RN732ATTD3003F100 based on the following engineering criteria:

Compliance and Regulatory Status: Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for current manufacturing standards.

Product Lifecycle: The substitute part carries Active product status, providing assured long-term availability and supply chain stability compared to the obsolete main part.

Electrical and Mechanical Equivalence: The substitute maintains identical resistance value (300 kOhms), tolerance (±1%), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C ~ 155°C). Physical dimensions and package format are identical, ensuring direct PCB compatibility.

Power Rating Enhancement: The substitute provides 0.125W (1/8W) power rating, which exceeds the original 0.1W (1/10W) specification. This represents a performance enhancement with no derating impact on the original application.

Additional Certifications: The substitute incorporates AEC-Q200 automotive qualification, which does not restrict its use in non-automotive applications and provides additional quality assurance.

Frequently Asked Questions (FAQ)

Q: Can the RN73R2ATTD3003F100 be used as a direct replacement for the RN732ATTD3003F100 on existing PCBs?

A: Yes. Both parts share identical package format (0805), physical dimensions (0.079" L x 0.049" W), and termination count (2). PCB footprints are directly compatible without modification.

Q: What is the significance of the higher power rating (0.125W vs 0.1W) in the substitute part?

A: The substitute part's higher power rating indicates greater thermal dissipation capability. In applications where the original 0.1W rating was adequate, the 0.125W rating provides additional margin and does not require circuit 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. Its presence on the substitute part indicates enhanced quality and reliability screening but does not restrict application in non-automotive designs.

Q: Are the electrical characteristics identical between the main part and substitute?

A: Yes. Both parts specify 300 kOhms resistance, ±1% tolerance, ±100ppm/°C temperature coefficient, and -55°C ~ 155°C operating temperature range. Electrical performance is equivalent.

Q: What is the inventory status for the substitute part?

A: The RN73R2ATTD3003F100 is listed as Active product status with 1093 pieces in stock, providing immediate availability for procurement.

Q: Are there any moisture sensitivity concerns with either part?

A: Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity limitations. Standard handling procedures apply without special storage or baking requirements.