RN732ATTD89R8D50 Equivalent & Substitute Parts

Part Overview

The RN732ATTD89R8D50 is a 89.8 Ohms ±0.5% 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. Due to its obsolete designation, identifying equivalent and substitute parts is necessary to maintain design continuity and ensure component availability for production and repair applications.

Substiute Parts

RN732ATTD89R8D50

KOA Speer Electronics, Inc.In Stock: 959RN732ATTD89R8D50 Datasheet

Current PartRFQ

RN73R2ATTD89R8D50

KOA Speer Electronics, Inc.In Stock: 1154RN73R2ATTD89R8D50 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RN732ATTD89R8D50 is determined by strict equivalence in the following parameters:

Critical Parameters for Substitution:

• Resistance value: 89.8 Ohms
• Tolerance: ±0.5%
• Package format: 0805 (2012 Metric)
• Composition: Thin Film
• Temperature Coefficient: ±50ppm/°C
• Operating Temperature Range: -55°C ~ 155°C
• Moisture Resistance: Required
• RoHS3 Compliance: Required

Allowable Variation:

• Power rating may be equal to or greater than 0.1W
• Product status may transition from obsolete to active
• Additional certifications (such as AEC-Q200) do not disqualify substitution

The substitute part RN73R2ATTD89R8D50 meets all critical parameters and maintains full electrical and mechanical compatibility with the original component.

Parameter Comparison

Engineering Selection Recommendations

The RN73R2ATTD89R8D50 is a direct substitute for the RN732ATTD89R8D50. Selection of this substitute part is supported by the following factors:

Product Status: The substitute part maintains active product status with KOA Speer Electronics, Inc., ensuring long-term availability and supply chain continuity compared to the obsolete main part.

Electrical Equivalence: Both components share identical resistance value (89.8 Ohms), tolerance (±0.5%), temperature coefficient (±50ppm/°C), and operating temperature range (-55°C ~ 155°C). Thin film composition and moisture resistance characteristics are preserved.

Mechanical Compatibility: Both parts utilize the 0805 (2012 Metric) package format with identical physical dimensions (0.079" L x 0.049" W, 2.00mm x 1.25mm) and height specifications (0.024" maximum seated height, 0.60mm).

Power Rating: The substitute part provides 0.125W (1/8W) power rating, which exceeds the original 0.1W (1/10W) specification. This higher rating provides additional thermal margin without affecting circuit performance.

Compliance: Both components maintain ROHS3 compliance, MSL 1 (Unlimited) moisture sensitivity level, and identical regulatory classifications (EAR99, HTSUS 8533.21.0030).

Additional Certification: The substitute part includes AEC-Q200 automotive qualification, which represents an enhancement to the original specification without introducing incompatibility.

Frequently Asked Questions (FAQ)

Q: Can RN73R2ATTD89R8D50 be used as a direct replacement for RN732ATTD89R8D50?

A: Yes. Both components share identical electrical parameters (89.8 Ohms ±0.5%, ±50ppm/°C temperature coefficient, -55°C ~ 155°C operating range), identical package format (0805 2012 Metric), and identical physical dimensions. The substitute part is electrically and mechanically compatible.

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

A: The main part is rated at 0.1W (1/10W), while the substitute is rated at 0.125W (1/8W). The higher power rating of the substitute part does not affect circuit operation and provides additional thermal margin. Both ratings are suitable for identical circuit applications.

Q: Why is the main part listed as obsolete?

A: The RN732ATTD89R8D50 is classified as obsolete by the manufacturer. The RN73R2ATTD89R8D50 is the active equivalent part that maintains all critical electrical and mechanical specifications while ensuring ongoing availability.

Q: Are there packaging differences between these parts?

A: The main part is supplied in standard packaging, while the substitute part is supplied in Tape & Reel (TR) format. Both components are identical in physical dimensions and electrical characteristics. Tape & Reel packaging is standard for high-volume production applications.

Q: Does the AEC-Q200 certification on the substitute part affect compatibility?

A: No. AEC-Q200 is an automotive qualification standard that represents an additional certification level. The presence of this certification does not introduce incompatibility and may provide additional assurance for applications requiring automotive-grade components.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the RN732ATTD89R8D50 and RN73R2ATTD89R8D50 are ROHS3 compliant with identical MSL 1 (Unlimited) moisture sensitivity levels.