RC6432F8451CS Equivalent & Substitute Parts Reference

Part Overview

The RC6432F8451CS is an 8.45 kOhms ±1% 1W chip resistor manufactured by Samsung Electro-Mechanics in the 2512 (6432 Metric) package format. This thick film, moisture-resistant component operates across the temperature range of -55°C to 155°C and is ROHS3 compliant with MSL 1 rating. The part is currently in active production status with 941 pieces available in inventory.

Substitute parts become necessary when the primary manufacturer experiences supply constraints, when design requirements mandate specific certifications such as automotive qualification, or when alternative sourcing strategies are implemented to optimize procurement costs and lead times.

Substiute Parts

RC6432F8451CS

Samsung Electro-MechanicsIn Stock: 1051RC6432F8451CS Datasheet

Current PartRFQ

ERJ-1TNF8451U

Panasonic Electronic ComponentsIn Stock: 2462ERJ-1TNF8451U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC6432F8451CS is determined by strict equivalence across the following parameters:

Critical Matching Parameters:

• Resistance value: 8.45 kOhms
• Tolerance: ±1%
• Power rating: 1W
• Package format: 2512 (6432 Metric)
• Composition: Thick Film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C to 155°C
• Moisture sensitivity level: 1 (Unlimited)
• RoHS compliance: ROHS3

The ERJ-1TNF8451U from Panasonic Electronic Components meets all critical electrical and mechanical parameters. This substitute maintains identical resistance, tolerance, power rating, package dimensions, and thermal specifications. The primary distinction is the addition of AEC-Q200 automotive qualification in the Panasonic variant, which represents an enhancement rather than a deviation from the base specification.

Parameter Comparison

Engineering Selection Recommendations

For Active Production Designs: The RC6432F8451CS from Samsung Electro-Mechanics is the primary selection, as it maintains active product status with established supply availability (941 pieces in stock). This component is suitable for new designs requiring standard thick film resistor performance without automotive-specific qualifications.

For Automotive Applications: The ERJ-1TNF8451U from Panasonic provides AEC-Q200 automotive qualification, meeting enhanced reliability requirements for automotive-grade applications. However, this part carries a "Not For New Designs" status, indicating it is maintained for legacy or existing design support only. Selection of this substitute should be limited to applications where automotive qualification is mandatory and where the product status restriction does not conflict with design lifecycle requirements.

Compliance Considerations: Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for industrial and commercial applications. The MSL 1 rating on both components eliminates moisture-related handling constraints during assembly and storage.

Frequently Asked Questions (FAQ)

Q: Can the ERJ-1TNF8451U be used as a direct replacement for the RC6432F8451CS in new designs?

A: Electrical and mechanical compatibility is confirmed across all specified parameters. However, the ERJ-1TNF8451U carries a "Not For New Designs" status from the manufacturer. New design implementations should prioritize the RC6432F8451CS to ensure long-term supply continuity and manufacturer support.

Q: What is the significance of the AEC-Q200 qualification on the Panasonic part?

A: AEC-Q200 is an automotive industry standard qualification that certifies component reliability under automotive operating conditions. This qualification is present on the ERJ-1TNF8451U but not specified for the RC6432F8451CS. Selection should be based on whether your application requires automotive-grade certification.

Q: Are there dimensional differences between these two parts?

A: Minor dimensional variations exist. The RC6432F8451CS measures 0.248" L x 0.126" W (6.30mm x 3.20mm) with a maximum seated height of 0.026" (0.66mm). The ERJ-1TNF8451U measures 0.252" L x 0.126" W (6.40mm x 3.20mm) with a maximum seated height of 0.028" (0.70mm). These differences are within typical PCB layout tolerances for 2512 package components.

Q: What packaging formats are available?

A: The RC6432F8451CS packaging format is not specified in the provided data. The ERJ-1TNF8451U is supplied in Tape & Reel (TR) format, which is standard for high-volume automated assembly operations.

Q: Are both parts RoHS compliant?

A: Yes, both the RC6432F8451CS and ERJ-1TNF8451U are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for industrial electronics manufacturing.

Q: What is the moisture sensitivity level, and why does it matter?

A: Both parts have an MSL rating of 1 (Unlimited), indicating no moisture sensitivity constraints. Components can be stored and handled under standard warehouse conditions without special desiccant packaging or baking procedures prior to assembly.