RN732ATTD3091F10 Equivalent & Substitute Parts

Part Overview

The RN732ATTD3091F10 is a 3.09 kOhms ±1% 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 RN732ATTD3091F10 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs, repairs, and system upgrades.

Substiute Parts

RN732ATTD3091F10

KOA Speer Electronics, Inc.In Stock: 947RN732ATTD3091F10 Datasheet

Current PartRFQ

RN73R2ATTD3091F10

KOA Speer Electronics, Inc.In Stock: 953RN73R2ATTD3091F10 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RN732ATTD3091F10 is based on strict equivalence of the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 3.09 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 feature
• RoHS3 Compliance
• MSL Rating: 1 (Unlimited)

Allowable Variation:

• Power rating may be equal to or greater than the original 0.1W specification
• Packaging format (bulk vs. Tape & Reel) does not affect electrical equivalence
• Product status transition from obsolete to active is acceptable for substitution purposes

The RN73R2ATTD3091F10 meets all mandatory matching parameters and qualifies as a direct electrical and mechanical substitute.

Parameter Comparison

Engineering Selection Recommendations

The RN73R2ATTD3091F10 is a direct substitute for the RN732ATTD3091F10 based on electrical and mechanical equivalence. The substitute part offers the following advantages:

Product Status: The RN73R2ATTD3091F10 is classified as Active, ensuring continued availability and supply chain reliability compared to the obsolete RN732ATTD3091F10.

Power Rating Enhancement: The substitute part is rated for 0.125W (1/8W), which exceeds the original 0.1W specification. This higher power rating provides additional thermal margin in applications without requiring circuit redesign.

Automotive Qualification: The RN73R2ATTD3091F10 carries AEC-Q200 automotive qualification, indicating compliance with automotive industry reliability and quality standards. This certification is applicable in automotive and high-reliability applications.

Compliance: Both parts maintain ROHS3 compliance, MSL 1 rating, and identical physical dimensions, ensuring direct PCB compatibility and assembly process compatibility.

Packaging: The substitute is available in Tape & Reel (TR) format, supporting automated assembly processes. The original part packaging format does not affect electrical substitution.

Frequently Asked Questions (FAQ)

Q: Can the RN73R2ATTD3091F10 be used as a direct replacement for the RN732ATTD3091F10 in existing designs?

A: Yes. The RN73R2ATTD3091F10 is electrically and mechanically equivalent. Both parts share identical resistance (3.09 kOhms), tolerance (±1%), package (0805), composition (thin film), temperature coefficient (±10ppm/°C), and operating temperature range (-55°C to 155°C). Physical dimensions and termination count are identical, ensuring PCB compatibility without layout modifications.

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

A: The RN73R2ATTD3091F10 is rated for 0.125W compared to the original 0.1W. This higher rating does not change circuit behavior but provides additional thermal headroom. In applications where the original 0.1W rating was marginal, the substitute offers improved reliability without circuit redesign.

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

A: No. AEC-Q200 qualification indicates enhanced reliability testing and quality standards. This certification is a superset of standard industrial requirements and does not restrict use in non-automotive applications. The part remains fully compatible with all applications suitable for the original component.

Q: Are there any assembly or soldering process differences between these parts?

A: No. Both parts are 0805 (2012 Metric) thin film chip resistors with identical physical dimensions (0.079" L x 0.049" W, 2.00mm x 1.25mm) and height (0.024" maximum). Standard SMD reflow soldering processes apply to both parts without modification.

Q: What is the MSL 1 rating and why is it important?

A: MSL (Moisture Sensitivity Level) 1 indicates unlimited shelf life without moisture bake-out requirements. Both the original and substitute parts carry this rating, meaning they can be stored and handled using standard industrial practices without special moisture control procedures.

Q: Are there any compliance or regulatory differences between the two parts?

A: Both parts are ROHS3 compliant and REACH unaffected. The substitute part carries additional AEC-Q200 automotive qualification, which does not create compliance conflicts in any application category. All regulatory requirements are met by both parts.