RN732ATTD1241C25 Equivalent & Substitute Parts

Part Overview

The RN732ATTD1241C25 is a 1.24 kOhms ±0.25% thin film chip resistor manufactured by KOA Speer Electronics, Inc. in 0805 (2012 Metric) package format. This component is rated for 0.1W (1/10W) power dissipation with moisture-resistant construction and operates across -55°C to 155°C temperature range.

The RN732ATTD1241C25 carries an Obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this resistor specification.

Substiute Parts

RN732ATTD1241C25

KOA Speer Electronics, Inc.In Stock: 899RN732ATTD1241C25 Datasheet

Current PartRFQ

RN73R2ATTD1241C25

KOA Speer Electronics, Inc.In Stock: 881RN73R2ATTD1241C25 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RN732ATTD1241C25 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 1.24 kOhms
• Tolerance: ±0.25%
• Package / Case: 0805 (2012 Metric)
• Composition: Thin Film
• Temperature Coefficient: ±25ppm/°C
• Operating Temperature Range: -55°C ~ 155°C
• Moisture Resistant feature

Allowable Variation Parameters:

• Power Rating: Substitute parts may have equal or higher power rating (0.1W or greater)
• Product Status: Active status preferred for long-term availability
• Packaging Format: May differ (Tape & Reel vs. other formats)
• Certifications: Additional certifications (such as AEC-Q200) are acceptable

The RN73R2ATTD1241C25 qualifies as a direct substitute based on matching all mandatory parameters while offering enhanced power rating (0.125W vs. 0.1W) and automotive-grade certification.

Parameter Comparison

Engineering Selection Recommendations

RN73R2ATTD1241C25 as Primary Substitute:

The RN73R2ATTD1241C25 is the direct equivalent for the obsolete RN732ATTD1241C25. Both components share identical electrical specifications (1.24 kOhms, ±0.25% tolerance, ±25ppm/°C temperature coefficient) and mechanical compatibility (0805 package, 2.00mm x 1.25mm dimensions).

The substitute part offers the following advantages:

• Active Product Status: Ensures long-term availability and continued manufacturing support, eliminating supply chain risk associated with obsolete components.
• Enhanced Power Rating: 0.125W (1/8W) rating provides 25% additional power dissipation capacity compared to the original 0.1W specification, supporting applications with higher thermal margins.
• Automotive Certification: AEC-Q200 qualification indicates compliance with automotive reliability standards, extending application scope to automotive and industrial environments.
• Regulatory Compliance: Maintains ROHS3 compliance and REACH unaffected status, matching the original part's environmental certifications.

Both components are manufactured by KOA Speer Electronics, Inc., ensuring consistent quality and performance characteristics. The substitute part is suitable for direct replacement in all applications where the original RN732ATTD1241C25 was specified.

Frequently Asked Questions (FAQ)

Q: Can the RN73R2ATTD1241C25 be used as a direct replacement for the RN732ATTD1241C25?

A: Yes. Both parts share identical resistance (1.24 kOhms), tolerance (±0.25%), package (0805), and temperature characteristics (±25ppm/°C, -55°C to 155°C). The substitute part is mechanically and electrically compatible for direct substitution.

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

A: The original RN732ATTD1241C25 is rated for 0.1W (1/10W), while the substitute RN73R2ATTD1241C25 is rated for 0.125W (1/8W). The higher power rating of the substitute part does not affect compatibility and provides additional thermal margin in the application.

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

A: No. AEC-Q200 is an automotive reliability qualification that represents an additional certification level. The presence of this certification does not alter the electrical or mechanical characteristics of the component and does not restrict its use in non-automotive applications.

Q: Are the physical dimensions identical between the two parts?

A: Yes. Both components are packaged in 0805 (2012 Metric) format with identical dimensions: 0.079" L x 0.049" W (2.00mm x 1.25mm) and maximum seated height of 0.024" (0.60mm). They are footprint-compatible for PCB assembly.

Q: What is the significance of the Obsolete status for the original part?

A: Obsolete status indicates that the RN732ATTD1241C25 is no longer in active production. The RN73R2ATTD1241C25 maintains Active status, ensuring continued availability, manufacturing support, and supply chain reliability for new designs and ongoing production requirements.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the RN732ATTD1241C25 and RN73R2ATTD1241C25 are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), meeting environmental and regulatory requirements for electronics manufacturing.