RN732ATTD3282D50 Equivalent & Substitute Parts

Part Overview

The RN732ATTD3282D50 is a 32.8 kOhms ±0.5% thin film chip resistor in 0805 (2012 Metric) package rated at 0.1W (1/10W) power dissipation. This component is manufactured by KOA Speer Electronics, Inc. as part of the RN73 series and carries an Obsolete product status. Due to its obsolete classification, identifying functionally equivalent substitute parts is necessary for ongoing design support, production continuity, and component sourcing.

Substiute Parts

RN732ATTD3282D50

KOA Speer Electronics, Inc.In Stock: 1059RN732ATTD3282D50 Datasheet

Current PartRFQ

RN73R2ATTD3282D50

KOA Speer Electronics, Inc.In Stock: 1072RN73R2ATTD3282D50 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RN732ATTD3282D50 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 32.8 kOhms
• Tolerance: ±0.5%
• Package / Case: 0805 (2012 Metric)
• Composition: Thin Film
• Temperature Coefficient: ±50ppm/°C
• Operating Temperature Range: -55°C ~ 155°C
• Moisture Resistant feature
• RoHS3 Compliance
• MSL Rating: 1 (Unlimited)

Allowable Variation:

• Power rating may be equal to or greater than the original 0.1W specification, provided the physical dimensions and thermal characteristics remain compatible with the 0805 package footprint.

The substitute part RN73R2ATTD3282D50 meets all mandatory matching parameters and exceeds the power rating requirement (0.125W vs. 0.1W), making it a valid electrical and mechanical substitute.

Parameter Comparison

Engineering Selection Recommendations

The RN73R2ATTD3282D50 is a direct substitute for the obsolete RN732ATTD3282D50 based on the following engineering criteria:

Electrical Equivalence: Both parts maintain identical resistance value (32.8 kOhms), tolerance (±0.5%), temperature coefficient (±50ppm/°C), and operating temperature range (-55°C ~ 155°C). The substitute's higher power rating (0.125W vs. 0.1W) provides additional thermal margin without affecting circuit performance.

Mechanical Compatibility: Both components share identical 0805 (2012 Metric) package 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 Rating 1 (Unlimited moisture sensitivity level). The substitute carries additional AEC-Q200 automotive qualification, which does not restrict its use in non-automotive applications.

Product Availability: The substitute part RN73R2ATTD3282D50 maintains Active product status with current manufacturing support, addressing the obsolescence of the original part.

Frequently Asked Questions (FAQ)

Q: Can RN73R2ATTD3282D50 be used as a direct replacement for RN732ATTD3282D50 on existing PCBs?

A: Yes. Both parts share identical 0805 package dimensions and footprint requirements. No PCB layout modifications are necessary.

Q: What is the significance of the higher power rating (0.125W vs. 0.1W) on the substitute part?

A: The substitute's 0.125W rating exceeds the original 0.1W specification. This provides additional thermal dissipation capability and does not negatively impact circuit operation. The component will operate within safe thermal limits in applications designed for the lower-rated original part.

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

A: No. AEC-Q200 certification represents an additional qualification standard and does not restrict component use in non-automotive designs. The part remains fully compatible with all applications suitable for the original RN732ATTD3282D50.

Q: Are the tolerance and temperature coefficient specifications identical between both parts?

A: Yes. Both parts maintain ±0.5% tolerance and ±50ppm/°C temperature coefficient, ensuring equivalent circuit performance and stability across the operating temperature range.

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

A: The main part (RN732ATTD3282D50) is supplied in standard packaging, while the substitute (RN73R2ATTD3282D50) is supplied in Tape & Reel (TR) format. Both are electrically and mechanically identical; packaging format affects only handling and assembly processes.

Q: Are both parts RoHS3 compliant?

A: Yes. Both RN732ATTD3282D50 and RN73R2ATTD3282D50 are ROHS3 compliant with MSL Rating 1 (Unlimited), meeting current environmental and regulatory requirements.