RC3225F2612CS Equivalent & Substitute Parts Reference

Part Overview

The RC3225F2612CS is a 26.1 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in the 1210 (3225 Metric) package format. This component is rated for 0.333W (1/3W) power dissipation with moisture-resistant construction and operates across the temperature range of -55°C to 155°C. The part maintains Active product status with 709 units currently in stock inventory.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances. Alternative sources become necessary for supply chain continuity, extended lead time mitigation, or when specific certifications such as automotive AEC-Q200 qualification are required for application-specific requirements.

Substiute Parts

RC3225F2612CS

Samsung Electro-MechanicsIn Stock: 810RC3225F2612CS Datasheet

Current PartRFQ

CRCW121026K1FKEA

Vishay DaleIn Stock: 16013CRCW121026K1FKEA Datasheet

SimilarRFQ

ERJ-14NF2612U

Panasonic Electronic ComponentsIn Stock: 15064ERJ-14NF2612U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225F2612CS is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Resistance value: 26.1 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Package format: 1210 (3225 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature Coefficient: ±100 ppm/°C (exact match required)
• Operating Temperature Range: -55°C to 155°C minimum (exact match or superior range required)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match or superior rating required)
• RoHS Compliance: ROHS3 Compliant (exact match required)

Secondary Consideration:

• Power rating may exceed the original specification (0.333W) without compromising substitution validity, provided all primary criteria are satisfied

The identified substitute parts CRCW121026K1FKEA and ERJ-14NF2612U satisfy all primary substitution criteria. Both parts maintain identical resistance, tolerance, package format, composition, temperature coefficient, operating temperature range, moisture sensitivity level, and RoHS compliance. Both substitute parts feature enhanced power ratings (0.5W / 1/2W) and automotive AEC-Q200 certification, which represent functional improvements over the original specification.

Parameter Comparison

Engineering Selection Recommendations

CRCW121026K1FKEA (Vishay Dale) - Primary Substitute:

The CRCW121026K1FKEA maintains Active product status and satisfies all electrical and mechanical substitution criteria. This part is recommended as the primary alternative source for the RC3225F2612CS. The enhanced 0.5W power rating provides additional thermal margin in applications where the original 0.333W specification is utilized. AEC-Q200 automotive qualification extends application scope to regulated automotive environments. Inventory availability of 15,986 units supports supply chain continuity.

ERJ-14NF2612U (Panasonic Electronic Components) - Secondary Substitute:

The ERJ-14NF2612U satisfies all electrical and mechanical substitution criteria and carries AEC-Q200 automotive certification. However, this part is designated "Not For New Designs," indicating end-of-life status within the manufacturer's product portfolio. Selection of this substitute should be limited to legacy system maintenance or applications where existing design validation has been completed. Inventory availability of 14,957 units remains adequate for near-term requirements.

Selection Logic:

For new design implementations, CRCW121026K1FKEA is the preferred substitute due to Active product status and equivalent performance characteristics. For existing designs currently utilizing RC3225F2612CS, either substitute part maintains full electrical and mechanical compatibility. Applications requiring automotive qualification should specify CRCW121026K1FKEA or ERJ-14NF2612U to satisfy AEC-Q200 requirements.

Frequently Asked Questions (FAQ)

Q: Can CRCW121026K1FKEA or ERJ-14NF2612U be used as direct replacements for RC3225F2612CS in existing circuit designs?

A: Yes. Both substitute parts maintain identical resistance (26.1 kOhms), tolerance (±1%), package format (1210 / 3225 Metric), composition (thick film), temperature coefficient (±100 ppm/°C), operating temperature range (-55°C to 155°C), and moisture sensitivity level (1 / Unlimited). Electrical performance and mechanical fit are equivalent. The enhanced power ratings (0.5W versus 0.333W) represent functional improvements without compatibility concerns.

Q: What is the significance of the "Not For New Designs" status on ERJ-14NF2612U?

A: "Not For New Designs" indicates that Panasonic has transitioned this part to end-of-life status and does not recommend its use in new product development. Existing inventory remains available for legacy system support and maintenance applications. For new designs, CRCW121026K1FKEA is the recommended substitute.

Q: Are there dimensional differences between the three parts that would affect PCB layout or assembly?

A: All three parts conform to the 1210 (3225 Metric) package standard. Dimensional variations are minimal: RC3225F2612CS measures 0.126" L × 0.100" W with 0.026" maximum seated height; CRCW121026K1FKEA measures 0.126" L × 0.098" W with 0.024" maximum seated height; ERJ-14NF2612U measures 0.126" L × 0.098" W with 0.028" maximum seated height. These variations fall within standard PCB design tolerances and do not require layout modification.

Q: What is the difference between the moisture-resistant feature on RC3225F2612CS and the standard thick film construction on the substitute parts?

A: The RC3225F2612CS explicitly specifies moisture-resistant construction. All three parts carry Moisture Sensitivity Level 1 (Unlimited), indicating equivalent moisture protection performance. The substitute parts achieve this rating through standard thick film construction and appropriate termination materials, satisfying the same environmental protection requirements.

Q: Why do the substitute parts carry AEC-Q200 automotive certification while the original part does not?

A: AEC-Q200 is an automotive industry qualification standard for passive components. The substitute parts from Vishay Dale and Panasonic have undergone formal automotive qualification testing. The RC3225F2612CS from Samsung Electro-Mechanics does not carry this certification, though it may be suitable for automotive applications depending on specific design requirements. Selection of AEC-Q200 certified parts is necessary only when automotive qualification is a design requirement.

Q: Can the higher power rating of the substitute parts (0.5W) affect circuit performance compared to the original 0.333W specification?

A: No. Power rating indicates the maximum power dissipation the component can safely handle. A higher power rating does not change the component's electrical behavior at lower power levels. If the original design dissipates 0.333W or less through the resistor, the substitute parts will perform identically. The higher rating provides additional thermal margin and reliability in applications approaching the original power specification.