RC3225F8660CS Equivalent & Substitute Parts Reference

Part Overview

The RC3225F8660CS is a 866 Ohms ±1% 1/3W chip resistor manufactured by Samsung Electro-Mechanics in the 1210 (3225 Metric) package. This thick film, moisture-resistant component operates across -55°C to 155°C and is ROHS3 compliant with MSL 1 rating. The part is currently in active production status with 962 pieces available in inventory.

Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained within the 1210 package footprint, allowing direct replacement in circuit designs without layout modification.

Substiute Parts

RC3225F8660CS

Samsung Electro-MechanicsIn Stock: 1018RC3225F8660CS Datasheet

Current PartRFQ

CRCW1210866RFKEA

Vishay DaleIn Stock: 5375CRCW1210866RFKEA Datasheet

SimilarRFQ

ERJ-14NF8660U

Panasonic Electronic ComponentsIn Stock: 16870ERJ-14NF8660U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225F8660CS is determined by strict adherence to the following criteria:

Mandatory Matching Parameters:

• Resistance value: 866 Ohms (exact match required)
• Tolerance: ±1% (no deviation permitted)
• Package: 1210 (3225 Metric) footprint (ensures PCB compatibility)
• Composition: Thick Film (maintains electrical performance characteristics)
• Temperature Coefficient: ±100ppm/°C (stability requirement)
• Operating Temperature Range: -55°C to 155°C (environmental compatibility)

Allowable Variation:

• Power Rating: Substitute parts may have equal or higher power dissipation capacity (0.5W/1/2W exceeds 0.333W/1/3W requirement)
• Regulatory Compliance: All substitutes must maintain ROHS3 compliance and MSL 1 rating

Identified Substitutes:

1. CRCW1210866RFKEA (Vishay Dale) – Meets all mandatory parameters with 0.5W power rating and AEC-Q200 automotive qualification
2. ERJ-14NF8660U (Panasonic Electronic Components) – Meets all mandatory parameters with 0.5W power rating and AEC-Q200 automotive qualification; marked "Not For New Designs"

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: CRCW1210866RFKEA (Vishay Dale)

This part is the preferred substitute for new designs. It maintains all mandatory electrical and mechanical parameters identical to the RC3225F8660CS while offering increased power dissipation capacity (0.5W versus 0.333W). The component carries active product status, AEC-Q200 automotive qualification, and ROHS3 compliance. Dimensional compatibility is confirmed with identical length (3.20mm) and slightly reduced width (2.50mm vs 2.55mm) and height (0.60mm vs 0.66mm), ensuring PCB footprint compatibility.

Secondary Selection: ERJ-14NF8660U (Panasonic Electronic Components)

This part meets all electrical and mechanical substitution criteria with identical resistance, tolerance, temperature coefficient, and operating range. However, it carries "Not For New Designs" product status, indicating Panasonic has discontinued this line for new applications. Use only when existing inventory constraints or supply chain requirements necessitate this selection. The component provides equivalent performance with AEC-Q200 automotive qualification and ROHS3 compliance.

Selection Criteria Summary:

• For new designs: CRCW1210866RFKEA
• For legacy system maintenance or supply continuity: ERJ-14NF8660U
• All substitutes support identical circuit functionality within specified operating parameters

Frequently Asked Questions (FAQ)

Q: Can CRCW1210866RFKEA directly replace RC3225F8660CS on existing PCBs?

A: Yes. Both components use the 1210 (3225 Metric) package with identical footprint dimensions (3.20mm length). The CRCW1210866RFKEA has slightly reduced width (2.50mm vs 2.55mm) and height (0.60mm vs 0.66mm), which presents no compatibility issues for standard PCB layouts. Electrical performance is identical across all critical parameters.

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

A: The CRCW1210866RFKEA and ERJ-14NF8660U both feature 0.5W (1/2W) power ratings compared to the RC3225F8660CS 0.333W (1/3W) rating. A higher power rating provides additional thermal margin and is fully compatible with circuits designed for the lower-rated component. No circuit modification is required.

Q: Why is ERJ-14NF8660U marked "Not For New Designs"?

A: This designation indicates Panasonic has transitioned this product line and no longer recommends it for new circuit development. While the part remains functionally equivalent and available in inventory (16,837 pieces), CRCW1210866RFKEA is the recommended choice for new applications to ensure long-term supply availability and manufacturer support.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. RC3225F8660CS, CRCW1210866RFKEA, and ERJ-14NF8660U all carry ROHS3 compliance certification. All parts are MSL 1 rated with unlimited moisture sensitivity level, requiring no special handling beyond standard ESD precautions.

Q: Do the substitute parts support automotive applications?

A: CRCW1210866RFKEA and ERJ-14NF8660U both carry AEC-Q200 automotive qualification, exceeding the requirements of the RC3225F8660CS. The RC3225F8660CS does not specify automotive rating. If automotive qualification is required, either substitute part is suitable.

Q: What is the temperature coefficient significance for substitution?

A: All three parts share identical ±100ppm/°C temperature coefficient and -55°C to 155°C operating range. This ensures resistance value stability across temperature variations is equivalent, maintaining circuit performance in thermal cycling environments.

Q: Can these parts be used interchangeably in high-precision applications?

A: Yes, within the tolerance specification. All parts maintain ±1% tolerance, ensuring resistance values remain within 858.66 Ohms to 873.34 Ohms across the operating temperature range. The identical temperature coefficient guarantees equivalent drift characteristics.