RN732ATTD3742C10 Equivalent & Substitute Parts

Part Overview

The RN732ATTD3742C10 is a 37.4 kOhms ±0.25% 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 RN732ATTD3742C10 carries an Obsolete product status. 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

RN732ATTD3742C10

KOA Speer Electronics, Inc.In Stock: 796RN732ATTD3742C10 Datasheet

Current PartRFQ

RN73R2ATTD3742C10

KOA Speer Electronics, Inc.In Stock: 799RN73R2ATTD3742C10 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RN732ATTD3742C10 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance Value: 37.4 kOhms
• Tolerance: ±0.25%
• Package / Case: 0805 (2012 Metric)
• Composition: Thin Film
• Temperature Coefficient: ±10ppm/°C
• Operating Temperature Range: -55°C ~ 155°C
• Number of Terminations: 2
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variation Parameters:

• Power Rating: May be equal to or greater than 0.1W
• Features: May include additional certifications or enhancements (such as Automotive AEC-Q200)
• Product Status: Active status preferred for ongoing availability

The RN73R2ATTD3742C10 qualifies as a direct substitute based on matching all mandatory parameters while offering enhanced power rating (0.125W vs. 0.1W) and additional Automotive AEC-Q200 certification.

Parameter Comparison

Engineering Selection Recommendations

The RN73R2ATTD3742C10 is the qualified substitute for the obsolete RN732ATTD3742C10. Selection of this substitute is supported by the following factors:

Product Status: The RN73R2ATTD3742C10 maintains Active product status, ensuring continued availability and supply chain support compared to the Obsolete status of the main part.

Compliance & Certifications: Both parts maintain ROHS3 compliance and Moisture Sensitivity Level 1 (Unlimited). The substitute additionally carries Automotive AEC-Q200 certification, which provides enhanced reliability qualification without compromising general-purpose applications.

Electrical & Mechanical Compatibility: The substitute part matches all critical electrical parameters (resistance, tolerance, temperature coefficient, operating temperature range) and maintains identical physical dimensions and package format (0805 / 2012 Metric).

Power Rating Enhancement: The RN73R2ATTD3742C10 provides 0.125W power rating compared to 0.1W in the original part. This represents a 25% increase in power dissipation capability, which is compatible with applications designed for the lower rating and provides additional thermal margin.

Frequently Asked Questions (FAQ)

Q: Can the RN73R2ATTD3742C10 be used as a direct replacement for the RN732ATTD3742C10?

A: Yes. The RN73R2ATTD3742C10 qualifies as a direct substitute. Both parts share identical resistance value (37.4 kOhms), tolerance (±0.25%), package format (0805), composition (thin film), temperature coefficient (±10ppm/°C), and operating temperature range (-55°C ~ 155°C). The substitute offers equal or superior performance across all specified parameters.

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

A: The RN732ATTD3742C10 is rated at 0.1W (1/10W), while the RN73R2ATTD3742C10 is rated at 0.125W (1/8W). The higher power rating of the substitute part provides additional thermal dissipation capability and is fully compatible with applications designed for the lower rating.

Q: Are there packaging differences between these parts?

A: Both parts are supplied in 0805 (2012 Metric) package format with identical physical dimensions (0.079" L x 0.049" W / 2.00mm x 1.25mm) and maximum seated height (0.024" / 0.60mm). The RN73R2ATTD3742C10 is available in Tape & Reel (TR) packaging, while the RN732ATTD3742C10 packaging format was not specified in the provided data.

Q: Does the Automotive AEC-Q200 certification on the substitute part affect general-purpose applications?

A: No. Automotive AEC-Q200 certification represents an additional qualification standard and does not restrict use in general-purpose applications. The substitute part maintains full compatibility with all applications designed for the original part.

Q: Why is the original part listed as Obsolete?

A: The RN732ATTD3742C10 carries Obsolete product status. The RN73R2ATTD3742C10 with Active status is the recommended substitute to ensure ongoing supply availability and production continuity.

Q: Are the RoHS and REACH compliance statuses identical?

A: Yes. Both parts are ROHS3 Compliant and REACH Unaffected, maintaining identical environmental compliance profiles.