RC3225F8661CS Equivalent & Substitute Parts Reference

Part Overview

The RC3225F8661CS is an 8.66 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 1088 units currently in stock.

Substitute parts become necessary when the primary component experiences supply constraints, extended lead times, or when design requirements permit alternative specifications within compatible electrical and mechanical parameters. The RC3225F8661CS can be substituted with components that maintain identical resistance value, tolerance, package dimensions, and operating temperature range while accommodating variations in power rating and product lifecycle status.

Substiute Parts

RC3225F8661CS

Samsung Electro-MechanicsIn Stock: 1137RC3225F8661CS Datasheet

Current PartRFQ

ERJ-14NF8661U

Panasonic Electronic ComponentsIn Stock: 1494ERJ-14NF8661U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the RC3225F8661CS is based on strict electrical and mechanical parameter alignment. The following criteria determine valid substitutes:

Critical Parameters (Must Match Exactly):

• Resistance value: 8.66 kOhms
• Tolerance: ±1%
• Package format: 1210 (3225 Metric)
• Composition: Thick Film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C to 155°C
• Number of terminations: 2

Flexible Parameters (May Vary Within Limits):

• Power rating: Substitute may equal or exceed 0.333W
• Product status: Active or Not For New Designs
• Packaging format: May differ (Tape & Reel vs. bulk)
• Specific certifications: May include additional qualifications (e.g., AEC-Q200)

The ERJ-14NF8661U from Panasonic Electronic Components qualifies as a substitute because it maintains all critical electrical parameters while offering increased power rating (0.5W vs. 0.333W) and automotive-grade certification (AEC-Q200). Physical dimensions remain within acceptable tolerance for 1210 package specifications.

Parameter Comparison

Engineering Selection Recommendations

Primary Component (RC3225F8661CS): The Samsung Electro-Mechanics RC3225F8661CS maintains Active product status with established supply availability (1088 units in stock). This component is suitable for new designs requiring standard industrial-grade thick film resistors with moisture-resistant construction. Selection of this part is recommended when supply continuity and long-term availability are design priorities.

Substitute Component (ERJ-14NF8661U): The Panasonic ERJ-14NF8661U provides electrical and mechanical equivalence with the addition of AEC-Q200 automotive qualification. This component carries "Not For New Designs" status, indicating Panasonic has transitioned this model to end-of-life phase. The substitute is suitable for replacement applications, legacy design updates, or situations where automotive-grade certification provides additional value despite lifecycle status. The higher power rating (0.5W vs. 0.333W) provides thermal margin in applications where the primary component approaches power dissipation limits.

Compliance Considerations: Both components maintain ROHS3 compliance, REACH unaffected status, and EAR99 export classification. Moisture Sensitivity Level 1 (Unlimited) indicates no special handling requirements for either component. Selection between primary and substitute should prioritize supply chain stability and product lifecycle alignment with design timelines.

Frequently Asked Questions (FAQ)

Q: Can the ERJ-14NF8661U directly replace the RC3225F8661CS on existing PCBs?

A: Yes. Both components use identical 1210 (3225 Metric) package dimensions with matching lead spacing and footprint. Physical dimensions (length 3.20mm, width variance of 0.05mm, height variance of 0.04mm) fall within standard 1210 package tolerances. No PCB layout modifications are required.

Q: What is the significance of the higher power rating on the substitute part?

A: The ERJ-14NF8661U is rated for 0.5W (1/2W) compared to the RC3225F8661CS at 0.333W (1/3W). In applications where the resistor dissipates power near the 0.333W limit, the substitute provides additional thermal headroom and reduced operating temperature. This does not affect electrical performance in circuits designed for the lower power rating.

Q: Why does the Panasonic part show "Not For New Designs" status?

A: "Not For New Designs" indicates that Panasonic has discontinued active development and marketing of the ERJ-14NF8661U. Existing inventory may remain available, but the manufacturer does not recommend this component for new product development. The RC3225F8661CS with Active status is the preferred choice for new designs.

Q: Are there any tolerance or temperature coefficient differences between these parts?

A: No. Both components maintain ±1% tolerance and ±100ppm/°C temperature coefficient. Electrical performance characteristics are identical across the specified operating range of -55°C to 155°C.

Q: What packaging formats are available for each component?

A: The RC3225F8661CS is supplied in standard packaging (specific format not detailed in provided data). The ERJ-14NF8661U is available in Tape & Reel (TR) format. Packaging format selection depends on assembly process requirements and volume considerations.

Q: Are both components suitable for automotive applications?

A: The RC3225F8661CS is industrial-grade thick film construction. The ERJ-14NF8661U carries AEC-Q200 automotive qualification, making it specifically validated for automotive temperature cycling and reliability requirements. For automotive applications, the Panasonic component provides formal qualification assurance.

Q: What is the moisture sensitivity implication of MSL 1 (Unlimited)?

A: Moisture Sensitivity Level 1 (Unlimited) indicates these components require no special moisture control during storage, handling, or assembly. Standard warehouse conditions and normal manufacturing processes are acceptable. No baking or desiccant packaging is required.