RN732ATTD4701C50 Equivalent & Substitute Parts

Part Overview

The RN732ATTD4701C50 is a 4.7 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 RN732ATTD4701C50 is classified as obsolete. 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

RN732ATTD4701C50

KOA Speer Electronics, Inc.In Stock: 1132RN732ATTD4701C50 Datasheet

Current PartRFQ

RN73R2ATTD4701C50

KOA Speer Electronics, Inc.In Stock: 910RN73R2ATTD4701C50 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RN732ATTD4701C50 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 4.7 kOhms
• Tolerance: ±0.25%
• Package / Case: 0805 (2012 Metric)
• Composition: Thin Film
• Temperature Coefficient: ±50ppm/°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 disqualify substitution

The substitute part RN73R2ATTD4701C50 meets all mandatory matching parameters and exceeds the power rating specification, making it a valid substitute for the RN732ATTD4701C50.

Parameter Comparison

Engineering Selection Recommendations

The RN73R2ATTD4701C50 is a direct substitute for the RN732ATTD4701C50 based on the following engineering criteria:

Compliance and Regulatory Status: Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory continuity in applications subject to environmental directives.

Product Lifecycle Advantage: The RN73R2ATTD4701C50 carries active product status, whereas the RN732ATTD4701C50 is obsolete. Selection of the active substitute part ensures long-term supply chain viability and manufacturer support.

Electrical and Mechanical Equivalence: Resistance, tolerance, temperature coefficient, and operating temperature range are identical between both parts. Package dimensions and termination count are identical, confirming mechanical interchangeability in PCB layouts.

Power Rating Enhancement: The substitute part provides 0.125W power rating compared to the original 0.1W specification. This represents a 25% increase in power dissipation capability, which is compatible with applications designed for the original part and does not introduce design conflicts.

Automotive Qualification: The RN73R2ATTD4701C50 includes AEC-Q200 automotive qualification. This additional certification does not disqualify use in non-automotive applications and provides enhanced reliability documentation for applications requiring automotive-grade components.

Frequently Asked Questions (FAQ)

Q: Can the RN73R2ATTD4701C50 be used as a direct replacement for the RN732ATTD4701C50 in existing designs?

A: Yes. Both parts share identical resistance value (4.7 kOhms), tolerance (±0.25%), package format (0805), composition (thin film), temperature coefficient (±50ppm/°C), and operating temperature range (-55°C ~ 155°C). Physical dimensions and termination count are identical, confirming PCB-level compatibility.

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

A: The RN73R2ATTD4701C50 is rated at 0.125W compared to the original 0.1W. This higher rating provides additional thermal margin and does not create incompatibility with designs specified for 0.1W. The substitute part can safely operate in applications designed for the lower power specification.

Q: Why is the RN732ATTD4701C50 classified as obsolete?

A: Product obsolescence is determined by the manufacturer based on production lifecycle decisions. The RN73R2ATTD4701C50 represents the active equivalent within the KOA Speer Electronics product line, ensuring continued availability and manufacturer support.

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

A: No. AEC-Q200 qualification represents an additional quality and reliability standard. Components meeting automotive standards are suitable for general industrial and commercial applications without restriction.

Q: Are there any packaging differences between these parts?

A: The RN732ATTD4701C50 and RN73R2ATTD4701C50 are both 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 substitute part is available in Tape & Reel (TR) packaging format.

Q: Are both parts RoHS compliant?

A: Yes. Both the RN732ATTD4701C50 and RN73R2ATTD4701C50 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.