RC3225F6492CS Equivalent & Substitute Parts Reference

Part Overview

The RC3225F6492CS is a 64.9 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.333W (1/3W) power dissipation in a 1210 (3225 Metric) surface mount package. This component is classified as Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the critical parameters of resistance value, tolerance, power rating, package dimensions, and operating temperature range. The primary substitute identified is the ERJ-14NF6492U from Panasonic Electronic Components, which maintains identical resistance and tolerance specifications while offering increased power handling capability.

Substiute Parts

RC3225F6492CS

Samsung Electro-MechanicsIn Stock: 1007RC3225F6492CS Datasheet

Current PartRFQ

ERJ-14NF6492U

Panasonic Electronic ComponentsIn Stock: 10937ERJ-14NF6492U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225F6492CS is determined by strict adherence to the following parameters:

Mandatory Matching Parameters:

• Resistance value: 64.9 kOhms (exact match required)
• Tolerance: ±1% (substitute tolerance must not exceed this value)
• Package designation: 1210 (3225 Metric) (physical footprint compatibility)
• Composition: Thick Film (electrical performance characteristics)
• Operating temperature range: -55°C to 155°C minimum (application environment support)

Allowable Variation Parameters:

• Power rating: Substitute must equal or exceed 0.333W (higher power rating is acceptable and provides design margin)
• Temperature coefficient: ±100ppm/°C (matching value preferred for consistency)
• Packaging format: May differ (bulk, tape & reel, etc.) based on procurement requirements
• Supplier device package: May vary if physical dimensions remain compatible

The ERJ-14NF6492U qualifies as a direct substitute because it maintains identical resistance (64.9 kOhms), tolerance (±1%), package type (1210), composition (thick film), and operating temperature range (-55°C to 155°C), while providing increased power handling (0.5W versus 0.333W).

Parameter Comparison

Engineering Selection Recommendations

Primary Selection - RC3225F6492CS (Samsung Electro-Mechanics): The RC3225F6492CS is the recommended choice for new design implementations. This component carries Active product status, indicating full manufacturer support, continued availability, and ongoing quality assurance. It meets all RoHS3 compliance requirements and maintains unlimited moisture sensitivity rating (MSL 1), eliminating special handling constraints during assembly and storage.

Substitute Selection - ERJ-14NF6492U (Panasonic Electronic Components): The ERJ-14NF6492U is qualified as a functional substitute for applications where the primary part is unavailable or where design requirements specifically benefit from the increased 0.5W power rating. However, this component carries "Not For New Designs" status, indicating that Panasonic has discontinued active development and support for this product line. The ERJ-14NF6492U is suitable only for legacy system maintenance, repair operations, or applications where existing inventory must be utilized.

Compliance Considerations: Both components satisfy RoHS3 compliance and REACH unaffected status, making them suitable for applications subject to European environmental regulations. The identical operating temperature range (-55°C to 155°C) and temperature coefficient (±100ppm/°C) ensure equivalent thermal performance across the full application environment.

Physical Compatibility: Minor dimensional variations exist between the two parts (width 2.55mm versus 2.50mm, height 0.66mm versus 0.70mm). These differences remain within standard PCB layout tolerances for 1210 package footprints and do not require design modification for direct substitution.

Frequently Asked Questions (FAQ)

Q: Can the ERJ-14NF6492U be used as a direct replacement for the RC3225F6492CS in new product designs?

A: The ERJ-14NF6492U meets all electrical and mechanical substitution criteria (identical resistance, tolerance, package, and operating temperature range). However, Panasonic designates this part as "Not For New Designs," indicating discontinued development support. New designs should specify the RC3225F6492CS to ensure long-term availability and manufacturer support.

Q: What is the significance of the power rating difference (0.333W versus 0.5W)?

A: The ERJ-14NF6492U's higher power rating (0.5W) exceeds the RC3225F6492CS requirement (0.333W). In substitution applications, a higher power rating provides additional thermal margin and does not compromise circuit performance. The substitute can safely handle the same current and voltage conditions as the primary part.

Q: Are there physical dimension differences that affect PCB layout?

A: Minor differences exist: width (2.55mm versus 2.50mm) and height (0.66mm versus 0.70mm). Both components use the standard 1210 (3225 Metric) package footprint. These dimensional variations fall within normal manufacturing tolerances and do not require PCB redesign for direct substitution.

Q: Do both parts require special handling during assembly?

A: Both components carry Moisture Sensitivity Level (MSL) 1, classified as "Unlimited." This designation means neither part requires special moisture control measures, baking procedures, or restricted shelf-life management during manufacturing and assembly operations.

Q: What compliance certifications apply to both parts?

A: Both the RC3225F6492CS and ERJ-14NF6492U are RoHS3 compliant and REACH unaffected. They are suitable for applications subject to European environmental regulations and do not contain restricted substances under current directives.

Q: Can the ERJ-14NF6492U be used in automotive applications?

A: The ERJ-14NF6492U carries AEC-Q200 automotive qualification, indicating suitability for automotive-grade applications. The RC3225F6492CS does not specify automotive qualification. If automotive compliance is required, the ERJ-14NF6492U provides this additional certification, though its "Not For New Designs" status should be considered.

Q: What is the temperature coefficient and how does it affect circuit performance?

A: Both parts specify ±100ppm/°C temperature coefficient. This value indicates the resistor's resistance will change approximately 0.01% per degree Celsius across the operating range. For the 64.9 kOhm value, this results in maximum resistance variation of approximately 65 Ohms across the full -55°C to 155°C operating range, which is negligible for most circuit applications.