RN732ATTD6491B25 Equivalent & Substitute Parts

Part Overview

The RN732ATTD6491B25 is a 6.49 kOhms ±0.1% 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 -55°C to 155°C. The part is currently listed as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement.

Substiute Parts

RN732ATTD6491B25

KOA Speer Electronics, Inc.In Stock: 5182RN732ATTD6491B25 Datasheet

Current PartRFQ

RN73R2ATTD6491B25

KOA Speer Electronics, Inc.In Stock: 826RN73R2ATTD6491B25 Datasheet

DirectRFQ

TNPW08056K49BETA

Vishay DaleIn Stock: 1022TNPW08056K49BETA Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RN732ATTD6491B25 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 6.49 kOhms
• Tolerance: ±0.1%
• Package / Case: 0805 (2012 Metric)
• Composition: Thin Film
• Temperature Coefficient: ±25ppm/°C
• Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variation Parameters:

• Power Rating: Equal or greater than 0.1W
• Operating Temperature Range: Equal or greater coverage than -55°C ~ 155°C
• Compliance certifications: May differ based on application requirements
• Product status: Active alternatives preferred for obsolete parts

Two substitute parts meet these criteria with enhanced specifications suitable for direct replacement in applications where the RN732ATTD6491B25 is no longer available.

Parameter Comparison

Engineering Selection Recommendations

RN73R2ATTD6491B25 (KOA Speer Electronics, Inc.)

This substitute is the primary recommendation for direct replacement of the obsolete RN732ATTD6491B25. It maintains identical electrical specifications and physical dimensions while offering increased power rating (0.125W vs. 0.1W). The RN73R2ATTD6491B25 is manufactured by the same supplier, carries active product status, and maintains ROHS3 compliance. The addition of Automotive AEC-Q200 qualification provides enhanced reliability documentation suitable for automotive and industrial applications. This part is available in Tape & Reel packaging with 794 units in stock.

TNPW08056K49BETA (Vishay Dale)

This substitute provides an alternative from a different manufacturer with military-grade specifications. The TNPW08056K49BETA matches all critical electrical parameters and maintains the same 0805 package footprint. The increased power rating (0.125W) and military classification offer enhanced performance margins. However, this part operates within a reduced temperature range (-55°C ~ 125°C) compared to the main part (-55°C ~ 155°C) and carries RoHS non-compliance status. Selection of this part requires verification that the upper temperature limit of 125°C is acceptable for the application. This part is available in Tape & Reel packaging with 989 units in stock.

Frequently Asked Questions (FAQ)

Q: Can RN73R2ATTD6491B25 be used as a direct replacement for RN732ATTD6491B25?

A: Yes. Both parts share identical resistance (6.49 kOhms), tolerance (±0.1%), package (0805), composition (thin film), and temperature coefficient (±25ppm/°C). The RN73R2ATTD6491B25 provides higher power rating (0.125W vs. 0.1W), which is compatible with applications designed for the lower-rated main part. Physical dimensions and mounting characteristics are identical.

Q: What is the key difference between the two substitute parts?

A: RN73R2ATTD6491B25 is manufactured by KOA Speer Electronics with Automotive AEC-Q200 qualification and ROHS3 compliance. TNPW08056K49BETA is manufactured by Vishay Dale with military specifications and RoHS non-compliance. Both offer identical electrical performance and package compatibility, but differ in certification profiles and compliance status.

Q: Can TNPW08056K49BETA be used in applications requiring operation above 125°C?

A: No. The TNPW08056K49BETA operating temperature range is -55°C ~ 125°C, which is 30°C lower than the main part's upper limit of 155°C. Applications requiring sustained operation above 125°C must use RN73R2ATTD6491B25 or verify that peak temperatures remain within the TNPW08056K49BETA specification.

Q: Are there packaging differences between these parts?

A: All three parts use 0805 (2012 Metric) package with identical length and width (0.079" L x 0.049" W). Height variation is minimal: RN732ATTD6491B25 and RN73R2ATTD6491B25 are 0.024" (0.60mm) maximum, while TNPW08056K49BETA is 0.022" (0.55mm) maximum. This 0.002" difference is negligible for standard PCB assembly.

Q: Which substitute part should be selected for new designs?

A: RN73R2ATTD6491B25 is the recommended choice for new designs due to active product status, ROHS3 compliance, and Automotive AEC-Q200 qualification. This part provides the best long-term availability and regulatory alignment for production applications.

Q: Is RoHS compliance a critical factor in selecting between these substitutes?

A: RoHS compliance depends on application requirements and regional regulations. RN73R2ATTD6491B25 is ROHS3 compliant, suitable for applications subject to EU RoHS directives. TNPW08056K49BETA is RoHS non-compliant and requires verification that the application permits non-compliant components or operates in jurisdictions without RoHS mandates.