RN732ATTD2000C50 Equivalent & Substitute Parts

Part Overview

The RN732ATTD2000C50 is a 200 Ohm 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 ±0.25% tolerance, moisture resistance, and operates across -55°C to 155°C. The part is classified as obsolete, necessitating identification of equivalent substitute components for ongoing design requirements and procurement needs.

Substiute Parts

RN732ATTD2000C50

KOA Speer Electronics, Inc.In Stock: 722RN732ATTD2000C50 Datasheet

Current PartRFQ

RN73R2ATTD2000C50

KOA Speer Electronics, Inc.In Stock: 1045RN73R2ATTD2000C50 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RN732ATTD2000C50 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 200 Ohms
• Tolerance: ±0.25%
• Package format: 0805 (2012 Metric)
• Composition: Thin Film
• Temperature coefficient: ±50ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Moisture resistance capability
• RoHS3 compliance

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 RN73R2ATTD2000C50 qualifies as a direct substitute based on full alignment with all mandatory parameters while offering enhanced power rating (0.125W) and automotive qualification.

Parameter Comparison

Engineering Selection Recommendations

The RN73R2ATTD2000C50 serves as the direct substitute for the obsolete RN732ATTD2000C50. Selection is based on the following engineering criteria:

Compliance and Status: The substitute part maintains active product status with KOA Speer Electronics, Inc., ensuring long-term availability and supply chain continuity. Both parts achieve ROHS3 compliance and carry unlimited moisture sensitivity level (MSL 1) ratings.

Electrical and Mechanical Equivalence: The substitute part delivers identical electrical performance across resistance (200 Ohms), tolerance (±0.25%), temperature coefficient (±50ppm/°C), and operating temperature range (-55°C ~ 155°C). Physical dimensions and termination count remain unchanged, ensuring direct footprint compatibility in 0805 package applications.

Power Rating Enhancement: The RN73R2ATTD2000C50 provides 0.125W (1/8W) power rating compared to the original 0.1W specification. This increased rating presents no compatibility issues and may provide additional thermal margin in power dissipation scenarios.

Automotive Qualification: The substitute part carries AEC-Q200 automotive qualification, indicating enhanced reliability testing and suitability for automotive and high-reliability applications.

Frequently Asked Questions (FAQ)

Q: Can the RN73R2ATTD2000C50 directly replace the RN732ATTD2000C50 in existing designs?

A: Yes. The substitute part maintains identical resistance, tolerance, temperature coefficient, operating temperature range, package dimensions, and termination configuration. Direct substitution is electrically and mechanically compatible.

Q: What is the significance of the increased power rating (0.125W vs. 0.1W)?

A: The higher power rating of the substitute part indicates greater thermal dissipation capability. This presents no compatibility concern and may provide additional operational margin. Applications requiring the original 0.1W specification will operate within the substitute part's rated capacity.

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

A: No. AEC-Q200 certification indicates automotive-grade reliability testing and represents an enhancement. The certification does not alter electrical or mechanical parameters and does not restrict use in non-automotive applications.

Q: Are the physical dimensions identical between the main part and substitute?

A: Yes. Both parts measure 0.079" L x 0.049" W (2.00mm x 1.25mm) with maximum seated height of 0.024" (0.60mm). PCB footprint and assembly compatibility remain unchanged.

Q: What is the packaging difference between the two parts?

A: The main part (RN732ATTD2000C50) packaging is not specified in available data. The substitute part (RN73R2ATTD2000C50) is supplied in Tape & Reel (TR) format, which is standard for high-volume SMD component distribution.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the RN732ATTD2000C50 and RN73R2ATTD2000C50 achieve ROHS3 compliance and carry REACH Unaffected status, meeting environmental regulatory requirements.