RN732ATTD4530C10 Equivalent & Substitute Parts

Part Overview

The RN732ATTD4530C10 is a 453 Ohm ±0.25% 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 part is currently classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design requirements and procurement needs.

Substiute Parts

RN732ATTD4530C10

KOA Speer Electronics, Inc.In Stock: 1067RN732ATTD4530C10 Datasheet

Current PartRFQ

RN73R2ATTD4530C10

KOA Speer Electronics, Inc.In Stock: 1021RN73R2ATTD4530C10 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RN732ATTD4530C10 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance Value: 453 Ohms
• Tolerance: ±0.25%
• Package / Case: 0805 (2012 Metric)
• Composition: Thin Film
• Temperature Coefficient: ±10ppm/°C
• Operating Temperature Range: -55°C to 155°C
• Moisture Resistant Feature

Allowable Variation:

• Power Rating: The substitute part may have equal or higher power rating (0.125W or greater is acceptable for 0.1W applications)
• Product Status: Active status preferred over obsolete
• Certifications: Additional certifications (such as AEC-Q200) do not disqualify substitution

The RN73R2ATTD4530C10 meets all mandatory matching parameters while providing enhanced power rating (0.125W vs. 0.1W) and active product status with automotive qualification.

Parameter Comparison

Engineering Selection Recommendations

The RN73R2ATTD4530C10 is the direct substitute for the obsolete RN732ATTD4530C10. Selection of this substitute is based on the following engineering factors:

Product Status: The RN73R2ATTD4530C10 maintains active product status, ensuring continued availability and supply chain reliability compared to the obsolete main part.

Electrical Equivalence: Both parts maintain identical resistance value (453 Ohms), tolerance (±0.25%), temperature coefficient (±10ppm/°C), and operating temperature range (-55°C to 155°C). These parameters ensure functional interchangeability in circuit applications.

Power Rating Enhancement: The substitute part provides 0.125W power rating versus the main part's 0.1W rating. This higher rating is compatible with applications designed for 0.1W components, as the substitute can safely handle equal or lower power dissipation without performance degradation.

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

Physical Compatibility: Identical package dimensions (0805 / 2012 Metric), footprint, and termination count ensure direct PCB layout compatibility without design modification.

Frequently Asked Questions (FAQ)

Q: Can the RN73R2ATTD4530C10 be used as a direct replacement for the RN732ATTD4530C10?

A: Yes. The RN73R2ATTD4530C10 is electrically and mechanically equivalent to the RN732ATTD4530C10 across all critical parameters: resistance value, tolerance, temperature coefficient, operating temperature range, package format, and physical dimensions. The substitute's higher power rating (0.125W vs. 0.1W) is compatible with applications designed for the original 0.1W part.

Q: What is the difference in power rating between these parts, and does it affect substitution?

A: The main part is rated at 0.1W (1/10W), while the substitute is rated at 0.125W (1/8W). A higher power rating indicates greater thermal capacity and does not restrict substitution. The substitute can safely operate in circuits designed for the lower-rated original part.

Q: Are the physical dimensions identical?

A: Yes. Both parts use the 0805 (2012 Metric) package with identical dimensions of 0.079" L x 0.049" W (2.00mm x 1.25mm) and maximum seated height of 0.024" (0.60mm). No PCB layout modifications are required.

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

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

Q: Are both parts RoHS compliant?

A: Yes. Both the RN732ATTD4530C10 and RN73R2ATTD4530C10 are ROHS3 compliant, meeting environmental and hazardous substance restrictions.

Q: What is the moisture sensitivity level, and why is it important?

A: Both parts have MSL 1 (Unlimited) moisture sensitivity level, indicating unlimited shelf life without moisture control requirements. This simplifies storage and handling procedures.

Q: Why is the original part classified as obsolete?

A: The RN732ATTD4530C10 is listed as obsolete by the manufacturer. The RN73R2ATTD4530C10 represents the active product line continuation with equivalent electrical specifications and enhanced product status for ongoing procurement.