RN732ATTD4072D10 Equivalent & Substitute Parts

Part Overview

The RN732ATTD4072D10 is a 40.7 kOhms ±0.5% 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 RN732ATTD4072D10 carries an Obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for systems utilizing this resistor specification.

Substiute Parts

RN732ATTD4072D10

KOA Speer Electronics, Inc.In Stock: 911RN732ATTD4072D10 Datasheet

Current PartRFQ

RN73R2ATTD4072D10

KOA Speer Electronics, Inc.In Stock: 961RN73R2ATTD4072D10 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RN732ATTD4072D10 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 40.7 kOhms
• Tolerance: ±0.5%
• Package format: 0805 (2012 Metric)
• Composition: Thin Film
• Temperature coefficient: ±10ppm/°C
• Operating temperature range: -55°C to 155°C
• Moisture resistance capability
• RoHS3 compliance

Allowable Variation:

• Power rating may be equal to or greater than the original 0.1W specification, provided the physical dimensions and thermal characteristics remain compatible with the 0805 package footprint.

The RN73R2ATTD4072D10 meets all mandatory matching parameters and represents a valid substitute with an increased power rating of 0.125W (1/8W), which is compatible with the original application requirements.

Parameter Comparison

Engineering Selection Recommendations

The RN73R2ATTD4072D10 is a direct substitute for the obsolete RN732ATTD4072D10 based on electrical and mechanical parameter equivalence. The substitute part maintains identical resistance value, tolerance, package dimensions, and thermal characteristics while providing increased power dissipation capability (0.125W versus 0.1W).

The RN73R2ATTD4072D10 carries Active product status, ensuring ongoing availability and supply chain support. Both parts maintain ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1), confirming environmental and regulatory compatibility.

The substitute part includes AEC-Q200 automotive qualification, which represents an additional quality assurance certification not specified for the original part. This certification does not restrict use in non-automotive applications and provides enhanced reliability documentation.

Frequently Asked Questions (FAQ)

Q: Can the RN73R2ATTD4072D10 be used as a direct replacement for the RN732ATTD4072D10?

A: Yes. Both parts share identical resistance value (40.7 kOhms), tolerance (±0.5%), package format (0805), composition (thin film), temperature coefficient (±10ppm/°C), and operating temperature range (-55°C to 155°C). The substitute part has a higher power rating (0.125W versus 0.1W), which is compatible with applications designed for the original 0.1W specification.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both the RN732ATTD4072D10 and RN73R2ATTD4072D10 measure 0.079" L x 0.049" W (2.00mm x 1.25mm) with a maximum seated height of 0.024" (0.60mm). They are footprint-compatible for PCB assembly.

Q: What is the significance of the AEC-Q200 rating on the substitute part?

A: AEC-Q200 is an automotive qualification standard that certifies component reliability under automotive operating conditions. The presence of this certification on the RN73R2ATTD4072D10 indicates enhanced quality assurance and does not restrict the part's use in non-automotive applications.

Q: Why is the original part listed as Obsolete?

A: The RN732ATTD4072D10 carries Obsolete status, indicating that KOA Speer Electronics, Inc. has discontinued active production and support. The RN73R2ATTD4072D10 is the Active equivalent, ensuring continued availability and supply chain support.

Q: Are moisture sensitivity levels the same for both parts?

A: Yes. Both parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions and no special storage or handling requirements.

Q: Can these parts be used interchangeably in existing designs?

A: Yes, provided the application does not require the specific series designation or packaging format of the original part. The RN73R2ATTD4072D10 belongs to the RN73R series (versus RN73 series for the original), but maintains full electrical and mechanical compatibility.