RN732ATTD8563B25 Equivalent & Substitute Parts

Part Overview

The RN732ATTD8563B25 is a 856 kOhms ±0.1% thin film chip resistor in 0805 (2012 Metric) package rated at 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 classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design requirements and procurement continuity.

Substiute Parts

RN732ATTD8563B25

KOA Speer Electronics, Inc.In Stock: 880RN732ATTD8563B25 Datasheet

Current PartRFQ

RN73R2ATTD8563B25

KOA Speer Electronics, Inc.In Stock: 1024RN73R2ATTD8563B25 Datasheet

DirectRFQ

PHP00805E8563BBT1

Vishay Dale Thin FilmIn Stock: 828PHP00805E8563BBT1 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RN732ATTD8563B25 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 856 kOhms
• Tolerance: ±0.1%
• Package: 0805 (2012 Metric)
• Composition: Thin Film
• Temperature Coefficient: ±25ppm/°C
• Operating Temperature Range: -55°C ~ 155°C
• Terminations: 2

Allowable Variation Parameters:

• Power Rating: Equal or greater than 0.1W
• Features: May include additional moisture resistance or automotive qualifications
• Compliance: RoHS3 compliance preferred but not mandatory for all applications
• Packaging Format: Tape & Reel acceptable as alternative to standard packaging

Two substitute parts meet these criteria with varying power ratings and certifications suitable for different application contexts.

Parameter Comparison

Engineering Selection Recommendations

RN73R2ATTD8563B25 (Direct Substitute - Recommended for Standard Applications)

The RN73R2ATTD8563B25 is the primary equivalent for the obsolete RN732ATTD8563B25. Both components are manufactured by KOA Speer Electronics, Inc., with identical resistance, tolerance, temperature coefficient, and operating temperature specifications. The substitute features a marginally higher power rating (0.125W versus 0.1W), which provides additional thermal margin without affecting circuit performance. The RN73R2ATTD8563B25 maintains ROHS3 compliance and adds automotive AEC-Q200 qualification, making it suitable for both commercial and automotive applications. This part is currently in active production status with confirmed inventory availability.

PHP00805E8563BBT1 (Upgrade Substitute - For High-Reliability Applications)

The PHP00805E8563BBT1 from Vishay Dale Thin Film serves as an upgrade substitute when enhanced power dissipation capability or safety certifications are required. This component provides 0.63W power rating, substantially exceeding the original 0.1W specification, and includes flame-proof and safety certifications. The slightly increased physical dimensions (height 0.033" versus 0.024") must be verified for PCB layout compatibility. Note that this part carries RoHS non-compliant status, requiring evaluation against project compliance requirements. The PHP00805E8563BBT1 is appropriate for applications demanding superior thermal performance or safety-rated circuit implementations.

Frequently Asked Questions (FAQ)

Q: Can RN73R2ATTD8563B25 be used as a direct replacement for RN732ATTD8563B25?

A: Yes. Both parts share identical electrical specifications: 856 kOhms resistance, ±0.1% tolerance, ±25ppm/°C temperature coefficient, and -55°C to 155°C operating range. The RN73R2ATTD8563B25 features a higher power rating (0.125W versus 0.1W), which is compatible with the original application. Physical dimensions are identical, ensuring PCB footprint compatibility.

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

A: The RN73R2ATTD8563B25 is a direct equivalent with enhanced power rating and automotive qualification. The PHP00805E8563BBT1 provides significantly higher power dissipation (0.63W) and includes flame-proof and safety features, but has slightly larger physical dimensions and RoHS non-compliance status.

Q: Are there any PCB layout considerations when substituting with PHP00805E8563BBT1?

A: Yes. The PHP00805E8563BBT1 has a maximum seated height of 0.033" (0.84mm) compared to 0.024" (0.60mm) for the original part. Verify clearance above the component location on the PCB. Horizontal dimensions are nominally equivalent (0.080" x 0.050" versus 0.079" x 0.049"), presenting negligible footprint difference.

Q: Does RoHS compliance status affect substitution decisions?

A: RoHS compliance requirements depend on application and regulatory jurisdiction. The RN73R2ATTD8563B25 maintains ROHS3 compliance matching the original part. The PHP00805E8563BBT1 is RoHS non-compliant and requires explicit approval for applications subject to RoHS regulations.

Q: Can the substitute parts handle the same thermal environment as the original?

A: Yes. All three parts operate across -55°C to 155°C with identical ±25ppm/°C temperature coefficient. The substitute parts' equal or higher power ratings provide equivalent or improved thermal performance.

Q: What packaging formats are available for the substitute parts?

A: Both substitute parts are supplied in Tape & Reel (TR) format. The original RN732ATTD8563B25 was available in standard packaging. Tape & Reel format is standard for high-volume production and is compatible with automated assembly equipment.