RN732ATTD1202C50 Equivalent & Substitute Parts

Part Overview

The RN732ATTD1202C50 is a 12 kOhms ±0.25% thin film chip resistor in 0805 (2012 Metric) package rated for 0.1W (1/10W) power dissipation. Manufactured by KOA Speer Electronics, Inc., this component features moisture-resistant construction and operates across the temperature range of -55°C to 155°C. The part is currently classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement continuity.

Substiute Parts

RN732ATTD1202C50

KOA Speer Electronics, Inc.In Stock: 792RN732ATTD1202C50 Datasheet

Current PartRFQ

RN73R2ATTD1202C50

KOA Speer Electronics, Inc.In Stock: 874RN73R2ATTD1202C50 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RN732ATTD1202C50 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 12 kOhms
• Tolerance: ±0.25%
• Package / Case: 0805 (2012 Metric)
• Composition: Thin Film
• Temperature Coefficient: ±50ppm/°C
• Operating Temperature Range: -55°C ~ 155°C
• Moisture Resistance: Required

Allowable Variation:

• Power Rating: Substitute parts may have equal or higher power dissipation rating than the original 0.1W specification
• Packaging Format: Tape & Reel (TR) packaging is compatible with the original component specifications

The RN73R2ATTD1202C50 meets all mandatory matching parameters and represents a direct functional equivalent with enhanced power rating (0.125W vs. 0.1W) and active product status.

Parameter Comparison

Engineering Selection Recommendations

The RN73R2ATTD1202C50 is the direct functional equivalent for the obsolete RN732ATTD1202C50. Selection of this substitute is based on the following engineering criteria:

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 parts maintain identical resistance (12 kOhms), tolerance (±0.25%), 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 altering electrical performance.

Compliance & Certifications: Both parts are ROHS3 compliant and REACH unaffected. The substitute carries AEC-Q200 automotive qualification, which does not restrict its use in non-automotive applications and indicates enhanced reliability screening.

Physical Compatibility: Identical package dimensions (0805 / 2012 Metric), footprint, and termination count ensure direct PCB-level substitution without layout modifications.

Moisture Resistance: Both parts feature moisture-resistant thin film construction with MSL 1 (Unlimited) rating, maintaining environmental performance specifications.

Frequently Asked Questions (FAQ)

Q: Can RN73R2ATTD1202C50 be used as a direct replacement for RN732ATTD1202C50?

A: Yes. Both parts share identical electrical specifications (12 kOhms ±0.25%, ±50ppm/°C, -55°C ~ 155°C operating range) and physical dimensions (0805 package). The substitute's higher power rating (0.125W vs. 0.1W) is compatible with applications designed for the original 0.1W part.

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

A: The main part is rated for 0.1W (1/10W), while the substitute is rated for 0.125W (1/8W). The substitute's higher power dissipation capability does not affect electrical performance and provides additional thermal headroom in the application.

Q: Are there packaging differences between these parts?

A: The main part is supplied in standard packaging, while the substitute is supplied in Tape & Reel (TR) format. Both use identical 0805 (2012 Metric) package geometry with no physical differences affecting PCB assembly or performance.

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

A: No. AEC-Q200 qualification indicates enhanced reliability screening and is not restrictive. The substitute part is suitable for all applications where the original part was specified.

Q: Are both parts RoHS compliant?

A: Yes. Both RN732ATTD1202C50 and RN73R2ATTD1202C50 are ROHS3 compliant and REACH unaffected.

Q: What is the moisture sensitivity level for these resistors?

A: Both parts have Moisture Sensitivity Level (MSL) 1, indicating unlimited shelf life without moisture control requirements.