RN732ATTD1111C50 Equivalent & Substitute Parts

Part Overview

The RN732ATTD1111C50 is a 1.11 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 is classified as obsolete product status. Identification of equivalent and substitute parts is necessary to maintain design continuity and ensure component availability for production and repair applications where the original part is no longer readily procurable.

Substiute Parts

RN732ATTD1111C50

KOA Speer Electronics, Inc.In Stock: 1122RN732ATTD1111C50 Datasheet

Current PartRFQ

RN73R2ATTD1111C50

KOA Speer Electronics, Inc.In Stock: 941RN73R2ATTD1111C50 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RN732ATTD1111C50 is determined by strict equivalence of the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 1.11 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 feature

Allowable Variation:

• Power rating may be equal to or greater than the original 0.1W specification
• Product status may transition from obsolete to active
• Additional certifications (such as AEC-Q200) may be present in substitute parts

The substitute part RN73R2ATTD1111C50 meets all mandatory matching parameters and provides increased power rating (0.125W) with automotive qualification, making it a direct functional substitute.

Parameter Comparison

Engineering Selection Recommendations

The RN73R2ATTD1111C50 is a direct substitute for the RN732ATTD1111C50 based on the following engineering criteria:

Electrical Equivalence: Both parts maintain identical resistance (1.11 kOhms), tolerance (±0.25%), temperature coefficient (±50ppm/°C), and operating temperature range (-55°C ~ 155°C). The substitute provides increased power dissipation capability (0.125W versus 0.1W), which is compatible with all applications designed for the original part.

Physical Compatibility: Both components utilize the 0805 (2012 Metric) package with identical dimensions (0.079" L x 0.049" W, 2.00mm x 1.25mm) and maximum seated height (0.024" / 0.60mm), ensuring direct PCB footprint compatibility.

Regulatory Compliance: Both parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. The substitute part includes AEC-Q200 automotive qualification, providing additional reliability assurance for applications requiring automotive-grade components.

Product Availability: The substitute part maintains active product status with current manufacturing availability, addressing the obsolescence of the original RN732ATTD1111C50.

Frequently Asked Questions (FAQ)

Q: Can RN73R2ATTD1111C50 be used as a direct replacement for RN732ATTD1111C50 in existing designs?

A: Yes. The RN73R2ATTD1111C50 is electrically and physically equivalent to the RN732ATTD1111C50. Both parts share identical resistance value, tolerance, temperature coefficient, operating temperature range, and 0805 package dimensions. The substitute provides equal or superior performance characteristics.

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

A: The RN732ATTD1111C50 is rated at 0.1W (1/10W), while the RN73R2ATTD1111C50 is rated at 0.125W (1/8W). The higher power rating of the substitute part does not affect compatibility; it indicates greater power dissipation capability, which is beneficial for thermal management in circuit applications.

Q: Are both parts suitable for automotive applications?

A: The RN73R2ATTD1111C50 carries AEC-Q200 automotive qualification. The RN732ATTD1111C50 does not specify automotive certification. For automotive applications, the RN73R2ATTD1111C50 is the appropriate selection.

Q: Do these parts have identical physical dimensions?

A: Yes. Both the RN732ATTD1111C50 and RN73R2ATTD1111C50 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 on PCB layouts.

Q: What is the moisture sensitivity level for both parts?

A: Both parts have MSL 1 (Unlimited) moisture sensitivity rating, indicating no moisture-related storage or handling restrictions.

Q: Are both parts RoHS compliant?

A: Yes. Both the RN732ATTD1111C50 and RN73R2ATTD1111C50 are ROHS3 compliant.