RN732ATTD7682A05 Equivalent & Substitute Parts

Part Overview

The RN732ATTD7682A05 is a 76.8 kOhms ±0.05% 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 ±5ppm/°C and operates across -55°C to 155°C. The part is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design support and procurement continuity.

Substiute Parts

RN732ATTD7682A05

KOA Speer Electronics, Inc.In Stock: 1062RN732ATTD7682A05 Datasheet

Current PartRFQ

RN73R2ATTD7682A05

KOA Speer Electronics, Inc.In Stock: 947RN73R2ATTD7682A05 Datasheet

DirectRFQ

TNPU080576K8AZEN00

Vishay DaleIn Stock: 999TNPU080576K8AZEN00 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RN732ATTD7682A05 is determined by strict equivalence in the following critical parameters:

Mandatory Equivalence Parameters:

• Resistance value: 76.8 kOhms
• Tolerance: ±0.05%
• Package / Case: 0805 (2012 Metric)
• Composition: Thin Film
• Temperature Coefficient: ±5ppm/°C
• RoHS Compliance: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variation Parameters:

• Power Rating: Substitute parts may have equal or higher power ratings (0.125W or greater is acceptable)
• Operating Temperature Range: Substitute parts must maintain minimum -55°C lower bound; upper bound may vary
• Features: Additional features (Automotive AEC-Q200, Anti-Sulfur) are permissible enhancements
• Product Status: Active status is preferred for long-term availability

Two substitute parts meet these criteria and are identified below.

Parameter Comparison

Engineering Selection Recommendations

RN73R2ATTD7682A05 (Direct Substitute - KOA Speer Electronics, Inc.)

This part is the primary direct substitute for the obsolete RN732ATTD7682A05. It maintains identical electrical specifications (76.8 kOhms, ±0.05% tolerance, ±5ppm/°C temperature coefficient) and physical package dimensions. The power rating increase from 0.1W to 0.125W provides enhanced thermal margin without affecting circuit performance. The addition of Automotive AEC-Q200 qualification and active product status ensure long-term availability and supply chain stability. This substitute is suitable for direct replacement in existing designs without circuit modification.

TNPU080576K8AZEN00 (Upgrade Substitute - Vishay Dale)

This part represents an upgraded alternative from a different manufacturer (Vishay Dale). It matches all critical electrical parameters and maintains the 0805 package footprint. The addition of anti-sulfur coating provides enhanced environmental protection beyond the moisture resistance of the main part. Automotive AEC-Q200 qualification confirms reliability for demanding applications. The operating temperature upper limit of 125°C (versus 155°C for the main part) must be evaluated against specific application requirements. The marginal height reduction (0.022" versus 0.024") is negligible for standard PCB assembly. This substitute is appropriate for applications requiring enhanced environmental protection or multi-source qualification.

Frequently Asked Questions (FAQ)

Q: Can RN73R2ATTD7682A05 be used as a direct replacement for RN732ATTD7682A05?

A: Yes. Both parts share identical resistance (76.8 kOhms), tolerance (±0.05%), temperature coefficient (±5ppm/°C), package (0805), and operating temperature range (-55°C to 155°C). The RN73R2ATTD7682A05 has a higher power rating (0.125W versus 0.1W), which is acceptable for substitution. The part is currently active in production, ensuring availability.

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

A: RN73R2ATTD7682A05 is manufactured by KOA Speer Electronics, Inc. (same manufacturer as the main part), while TNPU080576K8AZEN00 is manufactured by Vishay Dale. Both meet electrical specifications. TNPU080576K8AZEN00 includes anti-sulfur coating and has a maximum operating temperature of 125°C (versus 155°C). Physical dimensions are nearly identical, with TNPU080576K8AZEN00 being 0.002" shorter in height.

Q: Are there any circuit design considerations when substituting these parts?

A: No circuit design changes are required. All substitute parts maintain the same resistance value, tolerance, and temperature coefficient. The increased power rating of substitute parts does not affect circuit operation. Verify that the application's maximum operating temperature does not exceed 125°C if using TNPU080576K8AZEN00.

Q: Do all parts have the same moisture sensitivity level?

A: Yes. All three parts (main and substitutes) have Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture handling requirements during storage or assembly.

Q: Are these parts RoHS compliant?

A: Yes. All parts are ROHS3 Compliant, meeting current environmental and regulatory requirements.

Q: Can TNPU080576K8AZEN00 be used in applications requiring operation above 125°C?

A: No. TNPU080576K8AZEN00 has a maximum operating temperature of 125°C. For applications requiring operation up to 155°C, use RN73R2ATTD7682A05 or the original RN732ATTD7682A05 (if available from inventory).