RN732ATTD6571F25 Equivalent & Substitute Parts

Part Overview

The RN732ATTD6571F25 is a 6.57 kOhms ±1% thin film chip resistor manufactured by KOA Speer Electronics, Inc., rated at 0.1W (1/10W) in 0805 (2012 Metric) package format. This component features moisture-resistant construction with a temperature coefficient of ±25ppm/°C and operates across -55°C to 155°C. The part is currently classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design requirements and procurement continuity.

Substiute Parts

RN732ATTD6571F25

KOA Speer Electronics, Inc.In Stock: 657RN732ATTD6571F25 Datasheet

Current PartRFQ

RN73R2ATTD6571F25

KOA Speer Electronics, Inc.In Stock: 1101RN73R2ATTD6571F25 Datasheet

DirectRFQ

PAT0805E6571BST1

Vishay Dale Thin FilmIn Stock: 900PAT0805E6571BST1 Datasheet

UpgradeRFQ

PHP00805E6571BBT1

Vishay Dale Thin FilmIn Stock: 921PHP00805E6571BBT1 Datasheet

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PHP00805E6571BST1

Vishay Dale Thin FilmIn Stock: 901PHP00805E6571BST1 Datasheet

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TNPW08056K57BEEA

Vishay DaleIn Stock: 753TNPW08056K57BEEA Datasheet

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TNPW08056K57BETY

Vishay DaleIn Stock: 1042TNPW08056K57BETY Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RN732ATTD6571F25 is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Resistance value: 6.57 kOhms (exact match required)
• Package format: 0805 (2012 Metric) (exact match required)
• Composition: Thin Film (exact match required)
• Temperature coefficient: ±25ppm/°C (exact match required)
• Operating temperature range: Minimum -55°C, maximum 155°C or higher
• Moisture sensitivity level: 1 (Unlimited) (exact match required)

Secondary Substitution Parameters:

• Tolerance: ±1% or tighter (±0.1% acceptable as upgrade)
• Power rating: Equal to or greater than 0.1W
• Features: Moisture resistant (required); additional features such as automotive qualification, flame proof, or anti-sulfur properties are acceptable enhancements

All substitute parts listed maintain identical resistance, package, composition, and thermal characteristics. Variations in tolerance and power rating represent either direct equivalents or performance upgrades suitable for the same circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (Active Status, Recommended Primary Choice):

RN73R2ATTD6571F25 from KOA Speer Electronics is the recommended direct equivalent. This part maintains identical electrical specifications (6.57 kOhms ±1%, ±25ppm/°C) and package format (0805) while offering a higher power rating (0.125W vs. 0.1W). The component is active in production, ROHS3 compliant, and includes automotive AEC-Q200 qualification, providing enhanced reliability for industrial and automotive applications.

Performance Upgrade Options (Active Status, Enhanced Specifications):

PAT0805E6571BST1 (Vishay Dale) provides improved tolerance (±0.1% vs. ±1%) and higher power rating (0.2W). This part is ROHS3 compliant, automotive qualified (AEC-Q200), and includes anti-sulfur protection. Suitable for applications requiring tighter tolerance and enhanced environmental resistance.

TNPW08056K57BEEA (Vishay Dale) offers ±0.1% tolerance, 0.26W power rating, and extended operating temperature range (-55°C to 175°C). ROHS3 compliant with automotive AEC-Q200 qualification and anti-sulfur features. Appropriate for high-reliability applications with extended temperature requirements.

High-Power Upgrade Options (Active Status, Maximum Power Capability):

PHP00805E6571BST1 (Vishay Dale) delivers the highest power rating (0.63W) with ±0.1% tolerance, flame-proof construction, and safety-rated features. ROHS3 compliant. Suitable for applications requiring significant power dissipation capability within the 0805 package footprint.

Military-Grade Option (Active Status, Specialized Applications):

TNPW08056K57BETY (Vishay Dale) provides military-grade thin film construction with ±0.1% tolerance and 0.125W power rating. Note: This part is RoHS non-compliant and REACH affected. Applicable only to military or legacy system designs where such specifications are explicitly required.

Compliance Consideration:

PHP00805E6571BBT1 (Vishay Dale) is RoHS non-compliant and should be selected only when legacy component compatibility or specific safety certifications override RoHS requirements.

Frequently Asked Questions (FAQ)

Q: Can RN73R2ATTD6571F25 directly replace RN732ATTD6571F25 in existing designs?

A: Yes. RN73R2ATTD6571F25 is a direct functional equivalent with identical resistance (6.57 kOhms), tolerance (±1%), package (0805), and thermal characteristics (±25ppm/°C, -55°C to 155°C). The higher power rating (0.125W vs. 0.1W) presents no compatibility issues and provides design margin. Both components are moisture resistant with MSL 1 rating.

Q: What is the difference between ±1% and ±0.1% tolerance specifications?

A: Tolerance defines the maximum allowable deviation from the nominal resistance value. ±1% tolerance permits deviation of ±65.7 ohms from 6.57 kOhms. ±0.1% tolerance restricts deviation to ±6.57 ohms. Tighter tolerance (±0.1%) is suitable for precision analog circuits, measurement instrumentation, and applications with stringent accuracy requirements. Standard tolerance (±1%) is adequate for general-purpose filtering, biasing, and signal conditioning applications.

Q: Are all substitute parts available in identical package dimensions?

A: All listed substitute parts use the 0805 (2012 Metric) package format with identical length (0.079" to 0.080" / 2.00mm to 2.03mm) and width (0.049" to 0.050" / 1.25mm to 1.27mm). Height variations exist: RN732ATTD6571F25 and RN73R2ATTD6571F25 measure 0.024" (0.60mm); Vishay Dale PAT and PHP series measure 0.018" to 0.033" (0.46mm to 0.84mm); Vishay Dale TNPW series measure 0.022" (0.55mm). These height differences are within standard PCB assembly tolerances and do not affect interchangeability for standard surface-mount applications.

Q: Which substitute part offers the best combination of compliance and performance?

A: TNPW08056K57BEEA provides optimal balance: ROHS3 compliant, automotive AEC-Q200 qualified, ±0.1% tolerance, 0.26W power rating, extended temperature range (-55°C to 175°C), and anti-sulfur protection. This part is active in production and suitable for industrial, automotive, and high-reliability applications.

Q: What does "Moisture Sensitivity Level 1 (Unlimited)" mean?

A: MSL 1 indicates the component requires no special moisture protection during storage, handling, or assembly. The component can be stored indefinitely at room temperature without desiccant packaging or controlled humidity environments. This classification applies to all listed parts and ensures compatibility with standard manufacturing processes.

Q: Can I use a higher power-rated resistor as a substitute?

A: Yes. Substituting a higher power-rated resistor (0.125W, 0.2W, 0.26W, or 0.63W) in place of the 0.1W original is electrically and mechanically valid. Higher power rating provides additional thermal margin and does not alter circuit function. Physical dimensions remain compatible within the 0805 package family. Select based on circuit power dissipation requirements and available PCB space.

Q: Are automotive-qualified parts (AEC-Q200) suitable for non-automotive applications?

A: Yes. Automotive qualification (AEC-Q200) indicates enhanced reliability testing, stricter manufacturing controls, and extended temperature range capability. These parts are fully compatible with non-automotive applications and provide superior reliability margins. No design modifications are required.

Q: What is the significance of "anti-sulfur" and "flame-proof" features?

A: Anti-sulfur protection prevents corrosion of internal conductors when exposed to sulfur-containing environments (industrial atmospheres, certain packaging materials). Flame-proof construction meets safety standards for applications where component failure must not propagate fire or create hazardous conditions. These features are beneficial enhancements for harsh environment and safety-critical applications but are not required for standard industrial use.