RC3216F8660CS Equivalent & Substitute Parts Reference

Part Overview

The RC3216F8660CS is a 866 Ohms ±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 moisture-resistant construction, operating across -55°C to 155°C temperature range. The part is ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when supply chain optimization is required, or when design specifications allow for alternative manufacturers meeting identical electrical and mechanical parameters.

Key Parameters

Parameter	Value
Resistance	866 Ohms
Tolerance	±1%
Power Rating	0.25W (1/4W)
Package / Case	1206 (3216 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C ~ 155°C
Number of Terminations	2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the RC3216F8660CS is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match Exactly):

Resistance value: 866 Ohms
Tolerance: ±1%
Power rating: 0.25W (1/4W)
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C to 155°C

Mechanical Parameters (Must Match Exactly):

Package type: 1206 (3216 Metric)
Number of terminations: 2
Composition: Thick Film

Compliance Parameters (Must Match or Exceed):

RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

All identified substitute parts meet these criteria. Additional features such as Automotive AEC-Q200 certification or enhanced moisture resistance represent functional enhancements that do not disqualify substitution but indicate expanded application scope.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp Range	Product Status	Features	RoHS	MSL
RC3216F8660CS	Samsung Electro-Mechanics	866 Ω	±1%	0.25	1206	±100ppm/°C	-55~155°C	Active	Moisture Resistant	ROHS3	1
ERJ-8ENF8660V	Panasonic Electronic Components	866 Ω	±1%	0.25	1206	±100ppm/°C	-55~155°C	Not For New Designs	Automotive AEC-Q200	ROHS3	1
RC1206FR-07866RL	YAGEO	866 Ω	±1%	0.25	1206	±100ppm/°C	-55~155°C	Active	Moisture Resistant	ROHS3	1
RMCF1206FT866R	Stackpole Electronics Inc	866 Ω	±1%	0.25	1206	±100ppm/°C	-55~155°C	Active	Automotive AEC-Q200	ROHS3	1
AC1206FR-07866RL	YAGEO	866 Ω	±1%	0.25	1206	±100ppm/°C	-55~155°C	Active	Automotive AEC-Q200, Moisture Resistant	ROHS3	1
CRCW1206866RFKEA	Vishay Dale	866 Ω	±1%	0.25	1206	±100ppm/°C	-55~155°C	Active	Automotive AEC-Q200	ROHS3	1

Engineering Selection Recommendations

Primary Substitutes (Active Product Status):

RC1206FR-07866RL (YAGEO) is recommended as the primary substitute. This part maintains Active product status identical to the main part, carries moisture-resistant construction matching the original specification, and demonstrates equivalent electrical and mechanical parameters with established supply availability.

RMCF1206FT866R (Stackpole Electronics Inc) is recommended for applications requiring Automotive AEC-Q200 certification. This part maintains Active status and provides enhanced reliability qualification suitable for automotive and industrial environments while maintaining full electrical equivalence.

AC1206FR-07866RL (YAGEO) combines both Automotive AEC-Q200 certification and moisture-resistant features, offering the broadest functional scope while maintaining Active product status.

CRCW1206866RFKEA (Vishay Dale) is recommended for applications requiring Automotive AEC-Q200 qualification from an alternative manufacturer. Active product status and established supply chain support this selection.

Secondary Substitute (Legacy Status):

ERJ-8ENF8660V (Panasonic Electronic Components) carries "Not For New Designs" product status. This part is electrically and mechanically equivalent but should be selected only when existing inventory constraints or legacy system requirements necessitate its use. New designs should prioritize Active status alternatives.

Dimensional Considerations:

All substitute parts conform to 1206 (3216 Metric) package specification. Minor variations in seated height (0.024" to 0.028" maximum) fall within standard PCB assembly tolerances and do not affect interchangeability in standard surface-mount applications.

Frequently Asked Questions (FAQ)

Q: Can ERJ-8ENF8660V be used as a direct replacement for RC3216F8660CS?

A: ERJ-8ENF8660V meets all electrical and mechanical equivalence criteria. However, its "Not For New Designs" status indicates Panasonic has discontinued active development. Use this part only when existing inventory or legacy system requirements apply. For new designs, select from Active status alternatives: RC1206FR-07866RL, RMCF1206FT866R, AC1206FR-07866RL, or CRCW1206866RFKEA.

Q: What is the difference between moisture-resistant and Automotive AEC-Q200 variants?

A: Moisture-resistant construction (RC3216F8660CS, RC1206FR-07866RL, AC1206FR-07866RL) provides enhanced protection against humidity exposure. Automotive AEC-Q200 certification (ERJ-8ENF8660V, RMCF1206FT866R, AC1206FR-07866RL, CRCW1206866RFKEA) indicates qualification for automotive-grade reliability testing and temperature cycling. AC1206FR-07866RL combines both features. Selection depends on application environment requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance identical to the main part RC3216F8660CS. All parts also maintain MSL 1 (Unlimited) moisture sensitivity rating, indicating no special storage or handling requirements.

Q: What is the significance of the ±100ppm/°C temperature coefficient?

A: Temperature coefficient specifies resistance value drift across the operating temperature range. All parts listed maintain ±100ppm/°C, ensuring equivalent thermal stability. Across the -55°C to 155°C operating range, this produces maximum resistance variation of approximately ±0.016 Ohms from the nominal 866 Ohm value, well within the ±1% tolerance specification.

Q: Can these parts be used interchangeably in existing PCB designs?

A: Yes, for standard surface-mount applications. All parts conform to 1206 (3216 Metric) package with 2 terminations. Seated height variations (0.024" to 0.028" maximum) are within standard PCB assembly process windows. Verify with your assembly partner if height-constrained applications exist.

Q: Which substitute offers the best supply availability?

A: RMCF1206FT866R (Stackpole) shows 54,431 pieces in stock. RC1206FR-07866RL (YAGEO) shows 5,300 pieces. CRCW1206866RFKEA (Vishay Dale) shows 4,783 pieces. ERJ-8ENF8660V (Panasonic) shows 60,309 pieces but carries "Not For New Designs" status. For new designs, RMCF1206FT866R provides optimal supply position with Active status.

Q: Is packaging format (Tape & Reel vs. other formats) a substitution factor?

A: All identified substitutes are supplied in Tape & Reel (TR) format, standard for high-volume surface-mount assembly. Packaging format does not affect electrical or mechanical equivalence. Confirm packaging compatibility with your procurement and assembly processes.

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