RN732ATTD2002D50 Equivalent & Substitute Parts

Part Overview

The RN732ATTD2002D50 is a 20 kOhms ±0.5% 0.1W chip resistor in 0805 (2012 Metric) package manufactured by KOA Speer Electronics, Inc. This thin film, moisture-resistant component operates across -55°C to 155°C with a temperature coefficient of ±50ppm/°C. The part is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design requirements and procurement needs.

Substiute Parts

RN732ATTD2002D50

KOA Speer Electronics, Inc.In Stock: 756RN732ATTD2002D50 Datasheet

Current PartRFQ

RN73R2ATTD2002D50

KOA Speer Electronics, Inc.In Stock: 914RN73R2ATTD2002D50 Datasheet

DirectRFQ

RNCF0805DTC20K0

Stackpole Electronics IncIn Stock: 1135RNCF0805DTC20K0 Datasheet

DirectRFQ

TNPW080520K0BETA

Vishay DaleIn Stock: 925TNPW080520K0BETA Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RN732ATTD2002D50 is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters (Must Match):

• Resistance value: 20 kOhms
• Package / Case: 0805 (2012 Metric)
• Composition: Thin Film
• Number of Terminations: 2

Allowable Variation Parameters:

• Tolerance: ±0.5% or tighter (lower tolerance values are acceptable)
• Power Rating: Equal to or greater than 0.1W
• Temperature Coefficient: ±50ppm/°C or tighter
• Operating Temperature Range: Must encompass or equal the original range
• Moisture Sensitivity Level: 1 (Unlimited)

Substitute parts are grouped into two categories: Direct Substitutes (matching tolerance and power rating specifications) and Upgrade Substitutes (enhanced performance characteristics such as tighter tolerance or military-grade specifications).

Parameter Comparison

Engineering Selection Recommendations

RN73R2ATTD2002D50 (Direct Substitute - Recommended for Most Applications)

This KOA Speer Electronics component provides direct electrical equivalence with identical resistance, tolerance, and temperature coefficient. The increased power rating (0.125W vs. 0.1W) offers design margin without altering circuit behavior. Active product status ensures long-term availability. Automotive AEC-Q200 qualification provides additional reliability assurance. ROHS3 compliance maintains regulatory alignment with the original part.

RNCF0805DTC20K0 (Direct Substitute - Higher Power Margin)

Manufactured by Stackpole Electronics Inc, this resistor maintains all critical electrical parameters while providing the highest power rating (0.25W) among direct substitutes. This configuration is suitable for applications requiring additional thermal headroom. Active product status and AEC-Q200 qualification support automotive and industrial applications. ROHS3 compliance is maintained.

TNPW080520K0BETA (Upgrade Substitute - Enhanced Tolerance)

This Vishay Dale component offers superior tolerance (±0.1% vs. ±0.5%) and improved temperature coefficient (±25ppm/°C vs. ±50ppm/°C), delivering enhanced precision for measurement and signal conditioning circuits. Military-grade specifications provide highest reliability classification. Note: RoHS non-compliance and REACH-affected status require regulatory review for new designs. Operating temperature range is limited to -55°C ~ 125°C, which is narrower than the original specification.

Frequently Asked Questions (FAQ)

Q: Can RN73R2ATTD2002D50 be used as a direct replacement for RN732ATTD2002D50?

A: Yes. Both components share identical resistance (20 kOhms), tolerance (±0.5%), temperature coefficient (±50ppm/°C), package (0805), and operating temperature range (-55°C ~ 155°C). The increased power rating (0.125W vs. 0.1W) is a non-limiting parameter that provides additional design margin.

Q: What is the primary difference between the direct substitutes and the upgrade substitute?

A: Direct substitutes (RN73R2ATTD2002D50 and RNCF0805DTC20K0) maintain the ±0.5% tolerance specification. The upgrade substitute (TNPW080520K0BETA) provides tighter tolerance (±0.1%) and lower temperature coefficient (±25ppm/°C) for applications requiring higher precision. The upgrade substitute has a narrower operating temperature range (-55°C ~ 125°C).

Q: Are all substitute parts available in 0805 package?

A: Yes. All substitute parts are packaged in 0805 (2012 Metric) format, ensuring mechanical and electrical compatibility with the original RN732ATTD2002D50 footprint.

Q: Which substitute part has the best availability?

A: RNCF0805DTC20K0 (Stackpole Electronics) shows the highest inventory level at 1068 pieces. RN73R2ATTD2002D50 (KOA Speer) has 844 pieces, and TNPW080520K0BETA (Vishay Dale) has 881 pieces in stock.

Q: Does the TNPW080520K0BETA meet RoHS requirements?

A: No. TNPW080520K0BETA is RoHS non-compliant and REACH-affected. Applications requiring RoHS3 compliance must use RN73R2ATTD2002D50 or RNCF0805DTC20K0.

Q: Can RNCF0805DTC20K0 be used in high-temperature applications?

A: RNCF0805DTC20K0 operates across -55°C ~ 155°C, matching the original RN732ATTD2002D50 specification. It is suitable for high-temperature applications within this range.

Q: What is the significance of AEC-Q200 qualification on substitute parts?

A: AEC-Q200 is an automotive industry standard qualification. RN73R2ATTD2002D50 and RNCF0805DTC20K0 both carry this certification, indicating compliance with automotive reliability and quality standards. This qualification is not present on the original RN732ATTD2002D50.