RN732ATTD4322F10 Equivalent & Substitute Parts

Part Overview

The RN732ATTD4322F10 is a 43.2 kOhms ±1% thin film chip resistor manufactured by KOA Speer Electronics, Inc., rated at 0.1W (1/10W) in 0805 (2012 Metric) package format. This component features moisture-resistant construction with a temperature coefficient of ±10ppm/°C and operates across the temperature range of -55°C to 155°C.

The RN732ATTD4322F10 is classified as Obsolete. Locating equivalent or substitute components becomes necessary when original stock is depleted or when design flexibility permits the use of functionally compatible alternatives that meet or exceed the original specifications.

Substiute Parts

RN732ATTD4322F10

KOA Speer Electronics, Inc.In Stock: 984RN732ATTD4322F10 Datasheet

Current PartRFQ

RN73R2ATTD4322F10

KOA Speer Electronics, Inc.In Stock: 745RN73R2ATTD4322F10 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RN732ATTD4322F10 is determined by strict equivalence in the following critical parameters:

Mandatory Equivalence Parameters:

• Resistance value: 43.2 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 construction

Allowable Variation Parameters:

• Power Rating: The substitute part may have equal or higher power rating than the original 0.1W specification
• Product Status: Active status is preferred over Obsolete
• Certifications and Compliance: Additional certifications (such as AEC-Q200) do not disqualify a substitute

The substitute part RN73R2ATTD4322F10 meets all mandatory equivalence parameters and provides an enhanced power rating of 0.125W (1/8W), making it a direct functional substitute with improved thermal capability.

Parameter Comparison

Engineering Selection Recommendations

The RN73R2ATTD4322F10 is a direct functional substitute for the RN732ATTD4322F10 based on the following engineering criteria:

Electrical Compatibility: Both parts maintain identical resistance (43.2 kOhms), tolerance (±1%), temperature coefficient (±10ppm/°C), and operating temperature range (-55°C to 155°C). The substitute's increased power rating of 0.125W versus the original 0.1W provides enhanced thermal margin without affecting circuit performance.

Physical Compatibility: Both components share identical package dimensions (0805 / 2012 Metric), footprint, and termination configuration, ensuring direct PCB layout compatibility.

Compliance Status: The RN73R2ATTD4322F10 maintains ROHS3 compliance and REACH unaffected status equivalent to the original part. The addition of AEC-Q200 automotive qualification on the substitute part represents an enhancement in reliability certification.

Product Availability: The substitute part carries Active product status, ensuring continued availability and supply chain reliability compared to the Obsolete status of the original part.

Frequently Asked Questions (FAQ)

Q: Can the RN73R2ATTD4322F10 be used as a direct replacement for the RN732ATTD4322F10 in existing designs?

A: Yes. The RN73R2ATTD4322F10 is electrically and physically compatible with the RN732ATTD4322F10. Both parts share identical resistance value, tolerance, temperature coefficient, operating temperature range, and 0805 package dimensions. The substitute's higher power rating (0.125W vs. 0.1W) does not create compatibility issues.

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

A: The RN732ATTD4322F10 is rated at 0.1W (1/10W), while the RN73R2ATTD4322F10 is rated at 0.125W (1/8W). The substitute part has a 25% higher power dissipation capability, which provides additional thermal headroom in the circuit without affecting electrical performance.

Q: Are the physical dimensions identical?

A: Yes. Both parts are packaged in 0805 (2012 Metric) format with dimensions of 0.079" L x 0.049" W (2.00mm x 1.25mm) and maximum seated height of 0.024" (0.60mm). They are footprint-compatible for direct PCB substitution.

Q: Does the RN73R2ATTD4322F10 have additional certifications?

A: The RN73R2ATTD4322F10 includes AEC-Q200 automotive qualification in addition to the standard ROHS3 compliance and REACH unaffected status. This represents an enhancement in reliability certification without introducing incompatibility.

Q: Why is the original part listed as Obsolete?

A: The RN732ATTD4322F10 carries Obsolete product status, indicating it is no longer in active production. The RN73R2ATTD4322F10 maintains Active status, ensuring continued availability and supply chain support for new designs and production requirements.

Q: Are moisture sensitivity levels the same?

A: Yes. Both parts have Moisture Sensitivity Level (MSL) of 1 (Unlimited), indicating no moisture-related handling restrictions during storage or assembly.