RN732ATTD1202A25 Equivalent & Substitute Parts

Part Overview

The RN732ATTD1202A25 is a 12 kOhms ±0.05% thin film chip resistor manufactured by KOA Speer Electronics, Inc. in the 0805 (2012 Metric) package format. This component is rated for 0.1W (1/10W) power dissipation with moisture-resistant construction and operates across the temperature range of -55°C to 155°C.

The RN732ATTD1202A25 carries an Obsolete product status. Identifying equivalent and 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

RN732ATTD1202A25

KOA Speer Electronics, Inc.In Stock: 840RN732ATTD1202A25 Datasheet

Current PartRFQ

RN73R2ATTD1202A25

KOA Speer Electronics, Inc.In Stock: 875RN73R2ATTD1202A25 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RN732ATTD1202A25 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 12 kOhms
• Tolerance: ±0.05%
• Package / Case: 0805 (2012 Metric)
• Composition: Thin Film
• Temperature Coefficient: ±25ppm/°C
• Operating Temperature Range: -55°C ~ 155°C
• Moisture Resistant construction

Allowable Variation Parameters:

• Power Rating: Substitute parts may have equal or higher power ratings (0.1W or greater)
• Product Status: Active status parts are preferred for obsolete parts
• Packaging Format: May differ (Tape & Reel vs. bulk)
• Certifications: Additional certifications (such as AEC-Q200) do not disqualify substitution

The RN73R2ATTD1202A25 meets all mandatory matching parameters and qualifies as a direct substitute with an increased power rating of 0.125W (1/8W) and Active product status.

Parameter Comparison

Engineering Selection Recommendations

The RN73R2ATTD1202A25 is the qualified substitute for the obsolete RN732ATTD1202A25. Selection of this substitute is based on the following engineering criteria:

Product Status Alignment: The RN73R2ATTD1202A25 maintains Active product status, ensuring continued availability and manufacturing support compared to the Obsolete status of the main part.

Electrical Equivalence: Both parts maintain identical resistance (12 kOhms), tolerance (±0.05%), temperature coefficient (±25ppm/°C), and operating temperature range (-55°C ~ 155°C). These parameters ensure functional equivalence in circuit applications.

Power Rating Enhancement: The substitute part provides 0.125W (1/8W) power rating versus 0.1W (1/10W) in the main part. This represents a 25% increase in power dissipation capability, which is compatible with applications designed for the original part and does not introduce design conflicts.

Compliance Certification: Both parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating. The substitute part includes AEC-Q200 automotive qualification, which provides additional reliability assurance without creating incompatibility.

Physical Compatibility: Identical package dimensions (0805 / 2012 Metric) and termination count (2) ensure direct PCB footprint compatibility and assembly process alignment.

Frequently Asked Questions (FAQ)

Q: Can the RN73R2ATTD1202A25 be used as a direct replacement for the RN732ATTD1202A25?

A: Yes. The RN73R2ATTD1202A25 qualifies as a direct substitute. Both parts share identical resistance value (12 kOhms), tolerance (±0.05%), package format (0805), composition (thin film), temperature coefficient (±25ppm/°C), and operating temperature range (-55°C ~ 155°C). The substitute part has a higher power rating (0.125W vs. 0.1W), which is compatible with the original design.

Q: What is the significance of the higher power rating in the substitute part?

A: The RN73R2ATTD1202A25 is rated for 0.125W (1/8W) compared to the original 0.1W (1/10W). This 25% increase in power dissipation capability provides additional thermal margin in the application. Applications designed for the original 0.1W part will operate within the thermal limits of the substitute part without modification.

Q: Are there packaging differences between these parts?

A: The main part (RN732ATTD1202A25) is supplied in standard packaging, while the substitute (RN73R2ATTD1202A25) is supplied in Tape & Reel (TR) format. Both use the identical 0805 (2012 Metric) package case. Tape & Reel packaging is standard for automated assembly processes and does not affect component performance or PCB compatibility.

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

A: No. AEC-Q200 is an automotive qualification standard that indicates enhanced reliability testing and quality assurance. The presence of this certification on the substitute part does not create incompatibility with non-automotive applications. It represents an additional quality assurance measure.

Q: Are the tolerance and temperature coefficient specifications identical?

A: Yes. Both parts maintain ±0.05% tolerance and ±25ppm/°C temperature coefficient. These critical precision parameters are identical, ensuring equivalent performance in precision circuit applications requiring tight tolerance control.

Q: What is the moisture sensitivity rating, and does it differ between parts?

A: Both parts carry MSL 1 (Unlimited) moisture sensitivity rating. This indicates unlimited shelf life without moisture bake-out requirements prior to assembly, providing equivalent handling and storage characteristics.

Q: Is the substitute part currently available?

A: The RN73R2ATTD1202A25 maintains Active product status with 847 pieces in current inventory. The original RN732ATTD1202A25 is Obsolete, making the substitute the recommended selection for new procurement and ongoing production support.