RN732ATTD4022C10 Equivalent & Substitute Parts

Part Overview

The RN732ATTD4022C10 is a 40.2 kOhms ±0.25% thin film chip resistor manufactured by KOA Speer Electronics, Inc. in the 0805 (2012 Metric) package format. This component is rated for 0.1W (1/10W) power dissipation with moisture-resistant construction and operates across the temperature range of -55°C to 155°C.

The RN732ATTD4022C10 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

RN732ATTD4022C10

KOA Speer Electronics, Inc.In Stock: 1064RN732ATTD4022C10 Datasheet

Current PartRFQ

RN73R2ATTD4022C10

KOA Speer Electronics, Inc.In Stock: 1169RN73R2ATTD4022C10 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RN732ATTD4022C10 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 40.2 kOhms
• Tolerance: ±0.25%
• Package / Case: 0805 (2012 Metric)
• Composition: Thin Film
• Temperature Coefficient: ±10ppm/°C
• Operating Temperature Range: -55°C ~ 155°C
• Moisture Resistant construction

Allowable Variation:

• Power rating may be equal to or greater than the original specification (0.1W minimum)
• Product status may transition from Obsolete to Active
• Additional certifications (such as AEC-Q200) do not preclude substitution

The substitute part RN73R2ATTD4022C10 meets all mandatory matching parameters and exceeds the power rating specification, making it a valid electrical and mechanical substitute.

Parameter Comparison

Engineering Selection Recommendations

The RN73R2ATTD4022C10 is the direct substitute for the obsolete RN732ATTD4022C10. Selection of this substitute part is supported by the following factors:

Product Status: The RN73R2ATTD4022C10 maintains Active product status, ensuring continued availability and manufacturing support from KOA Speer Electronics, Inc.

Electrical Equivalence: Both parts share identical resistance (40.2 kOhms), tolerance (±0.25%), temperature coefficient (±10ppm/°C), and operating temperature range (-55°C ~ 155°C). The substitute part's increased power rating (0.125W versus 0.1W) provides additional thermal margin without affecting circuit performance.

Mechanical Compatibility: Both parts utilize the 0805 (2012 Metric) package with identical physical dimensions (0.079" L x 0.049" W, 2.00mm x 1.25mm) and height (0.024" maximum seated height). Direct board-level substitution is supported.

Compliance: Both parts are ROHS3 Compliant with MSL 1 (Unlimited) moisture sensitivity rating. The substitute part carries AEC-Q200 automotive qualification, which does not restrict its use in non-automotive applications.

Frequently Asked Questions (FAQ)

Q: Can the RN73R2ATTD4022C10 be used as a direct replacement for the RN732ATTD4022C10?

A: Yes. The RN73R2ATTD4022C10 is electrically and mechanically equivalent to the RN732ATTD4022C10 across all critical parameters: resistance value, tolerance, package format, temperature coefficient, and operating temperature range. The substitute part's higher power rating (0.125W versus 0.1W) is compatible with applications designed for the original part.

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

A: The RN732ATTD4022C10 is rated for 0.1W (1/10W) power dissipation, while the RN73R2ATTD4022C10 is rated for 0.125W (1/8W). The substitute part's increased power rating provides additional thermal capacity and does not negatively impact circuit operation.

Q: Are the physical dimensions identical?

A: Yes. Both parts are packaged in the 0805 (2012 Metric) format with identical dimensions: 0.079" length x 0.049" width (2.00mm x 1.25mm) and maximum seated height of 0.024" (0.60mm). Board-level substitution requires no layout modifications.

Q: What does the AEC-Q200 certification on the substitute part mean?

A: AEC-Q200 is an automotive qualification standard. The RN73R2ATTD4022C10 meets this automotive-grade specification, which indicates enhanced reliability testing and quality assurance. This certification does not restrict the part's use in non-automotive applications.

Q: Are both parts RoHS compliant?

A: Yes. Both the RN732ATTD4022C10 and RN73R2ATTD4022C10 are ROHS3 Compliant with MSL 1 (Unlimited) moisture sensitivity rating, indicating no moisture-related handling restrictions during assembly and storage.