RCS3216F66R5CS Equivalent & Substitute Parts

Part Overview

The RCS3216F66R5CS is a 66.5 Ohm ±1% 0.25W thick film chip resistor in 1206 (3216 Metric) package manufactured by Samsung Electro-Mechanics. This component is classified as Active product status with anti-sulfur and moisture-resistant characteristics. The part operates across -55°C to 155°C and complies with ROHS3 standards.

Substitute parts are identified when equivalent electrical specifications (resistance value, tolerance, power rating, temperature coefficient) and mechanical compatibility (package type, dimensions, termination count) are maintained across different manufacturers. This reference provides qualified alternatives for procurement flexibility, inventory management, and supply chain continuity.

Substiute Parts

RCS3216F66R5CS

Samsung Electro-MechanicsIn Stock: 917RCS3216F66R5CS Datasheet

Current PartRFQ

CRCW120666R5FKEA

Vishay DaleIn Stock: 15583CRCW120666R5FKEA Datasheet

SimilarRFQ

CRCW120666R5FKEAHP

Vishay DaleIn Stock: 5680CRCW120666R5FKEAHP Datasheet

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ERJ-8ENF66R5V

Panasonic Electronic ComponentsIn Stock: 42861ERJ-8ENF66R5V Datasheet

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RC1206FR-0766R5L

YAGEOIn Stock: 94549RC1206FR-0766R5L Datasheet

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Key Parameters

Substitute Part Grouping Explanation

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

Electrical Equivalence Requirements:

• Resistance value: 66.5 Ohms (exact match)
• Tolerance: ±1% (exact match)
• Temperature Coefficient: ±100ppm/°C (exact match)
• Operating Temperature Range: -55°C to 155°C (exact match or wider range acceptable)

Mechanical Equivalence Requirements:

• Package / Case: 1206 (3216 Metric) (exact match)
• Composition: Thick Film (exact match)
• Number of Terminations: 2 (exact match)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match)

Compliance Requirements:

• RoHS Status: ROHS3 Compliant (minimum requirement)
• REACH Status: REACH Unaffected (maintained across all parts)

Substitute parts are grouped by power rating capability. Parts with identical 0.25W rating provide direct functional replacement. Parts with higher power ratings (0.75W) provide enhanced capability within the same package footprint and are listed separately to indicate design flexibility.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalents (0.25W Power Rating):

CRCW120666R5FKEA (Vishay Dale) and RC1206FR-0766R5L (YAGEO) provide electrical and mechanical equivalence to RCS3216F66R5CS with Active product status. Both parts maintain identical resistance, tolerance, temperature coefficient, and operating temperature specifications. CRCW120666R5FKEA includes automotive AEC-Q200 qualification. RC1206FR-0766R5L offers the highest inventory availability (94,452 pcs) among direct equivalents.

ERJ-8ENF66R5V (Panasonic) meets all electrical and mechanical substitution criteria with AEC-Q200 automotive qualification. However, this part carries "Not For New Designs" product status, limiting its application to legacy system support or existing design maintenance only.

Enhanced Capability Alternative (0.75W Power Rating):

CRCW120666R5FKEAHP (Vishay Dale) provides 0.75W power rating within the same 1206 package footprint, offering increased thermal margin and pulse withstanding capability. This part maintains all other electrical parameters and includes AEC-Q200 automotive qualification. Selection of this part is appropriate when circuit design permits higher power dissipation tolerance or when enhanced reliability margin is required.

Compliance Verification:

All substitute parts maintain ROHS3 compliance, REACH Unaffected status, and MSL 1 (Unlimited) moisture sensitivity rating, ensuring regulatory and environmental compatibility with the original RCS3216F66R5CS specification.

Frequently Asked Questions (FAQ)

Q: Can CRCW120666R5FKEAHP (0.75W) be used as a direct replacement for RCS3216F66R5CS (0.25W)?

A: CRCW120666R5FKEAHP meets all electrical and mechanical substitution criteria. The higher power rating (0.75W vs. 0.25W) does not prevent substitution; it provides additional thermal capability. Substitution is valid when circuit design accommodates the component's physical dimensions (0.122" L x 0.063" W vs. 0.126" L x 0.063" W) and height (0.026" vs. 0.065" seated height).

Q: Why is ERJ-8ENF66R5V marked "Not For New Designs"?

A: Product status "Not For New Designs" indicates the manufacturer has discontinued active development and recommends alternative parts for new circuit designs. This part remains available for existing system support and legacy design maintenance. Substitution is appropriate only when supporting established products or when no other alternatives are available.

Q: Are all substitute parts available in Tape & Reel (TR) packaging?

A: CRCW120666R5FKEA, CRCW120666R5FKEAHP, ERJ-8ENF66R5V, and RC1206FR-0766R5L are all supplied in Tape & Reel (TR) packaging, suitable for automated assembly processes. Packaging format is consistent across all listed substitutes.

Q: What is the significance of AEC-Q200 qualification on substitute parts?

A: AEC-Q200 is an automotive industry qualification standard. CRCW120666R5FKEA, CRCW120666R5FKEAHP, and ERJ-8ENF66R5V carry this certification, indicating suitability for automotive applications. RCS3216F66R5CS does not specify AEC-Q200 qualification. Selection of AEC-Q200 qualified parts is appropriate for automotive or high-reliability applications.

Q: What are the dimensional differences between substitute parts?

A: Length varies between 0.122" (3.10mm) and 0.126" (3.20mm). Height ranges from 0.024" (0.60mm) to 0.028" (0.70mm). These variations remain within 1206 package specification tolerances. Verify PCB layout clearances and component placement constraints before substitution in space-constrained designs.

Q: Is inventory availability a factor in substitution eligibility?

A: Inventory availability does not affect electrical or mechanical substitution eligibility. RC1206FR-0766R5L (94,452 pcs) and ERJ-8ENF66R5V (42,850 pcs) offer higher stock levels than RCS3216F66R5CS (850 pcs). Inventory status is a procurement consideration separate from technical equivalence.