RC3216F685CS Equivalent & Substitute Parts Reference

Part Overview

The RC3216F685CS is a 6.8 MOhms ±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 and ROHS3 compliance. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and environmental ratings align with the original component's functional requirements.

Key Parameters

Parameter	Specification
Resistance Value	6.8 MOhms
Tolerance	±1%
Power Rating	0.25W (1/4W)
Package Type	1206 (3216 Metric)
Composition	Thick Film
Operating Temperature Range	-55°C ~ 155°C
Moisture Sensitivity Level	MSL 1 (Unlimited)
RoHS Status	ROHS3 Compliant
Number of Terminations	2

Substitute Part Grouping Explanation

Substitute parts for the RC3216F685CS are qualified based on the following criteria:

Electrical Parameters (Critical):

Resistance value: 6.8 MOhms
Tolerance: ±1%
Power rating: 0.25W (1/4W)

Mechanical Parameters (Critical):

Package: 1206 (3216 Metric)
Number of terminations: 2
Height seated maximum: 0.65mm to 0.70mm range

Environmental & Compliance Parameters:

Operating temperature range: -55°C ~ 155°C
Moisture Sensitivity Level: MSL 1
RoHS Status: ROHS3 Compliant
REACH Status: REACH Unaffected

Composition:

Thick film construction

Substitutes are grouped by feature set: direct equivalents maintain identical specifications, while upgrade options add automotive AEC-Q200 qualification without compromising base electrical performance.

Parameter Comparison

Parameter	RC3216F685CS (Samsung)	RC1206FR-076M8L (YAGEO)	RMCF1206FT6M80 (Stackpole)	CRCW12066M80FKEA (Vishay Dale)
Resistance	6.8 MOhms	6.8 MOhms	6.8 MOhms	6.8 MOhms
Tolerance	±1%	±1%	±1%	±1%
Power Rating	0.25W	0.25W	0.25W	0.25W
Package	1206 (3216 Metric)	1206 (3216 Metric)	1206 (3216 Metric)	1206 (3216 Metric)
Composition	Thick Film	Thick Film	Thick Film	Thick Film
Temperature Coefficient	±100ppm/°C	±100ppm/°C	±200ppm/°C	±100ppm/°C
Operating Temperature	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C
MSL Rating	MSL 1	MSL 1	MSL 1	MSL 1
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Automotive Rating	None	None	AEC-Q200	AEC-Q200
Size (L x W)	3.20mm x 1.60mm	3.10mm x 1.60mm	3.20mm x 1.60mm	3.20mm x 1.60mm
Height Seated (Max)	0.65mm	0.65mm	0.70mm	0.60mm

Engineering Selection Recommendations

RC1206FR-076M8L (YAGEO): Direct equivalent substitute. Maintains identical electrical specifications, temperature coefficient, and MSL rating. Suitable for applications requiring standard industrial-grade thick film resistors without automotive qualification. Highest inventory availability (23,460 pcs).

RMCF1206FT6M80 (Stackpole Electronics Inc): Upgrade substitute with AEC-Q200 automotive qualification. Acceptable for automotive and high-reliability applications. Temperature coefficient increases to ±200ppm/°C and seated height to 0.70mm. Verify PCB layout clearance before substitution.

CRCW12066M80FKEA (Vishay Dale): Upgrade substitute with AEC-Q200 automotive qualification. Maintains ±100ppm/°C temperature coefficient matching the original part. Seated height is 0.60mm (lowest profile). Suitable for space-constrained automotive and industrial applications.

All three substitutes maintain ROHS3 compliance, MSL 1 rating, and -55°C ~ 155°C operating temperature range. Selection depends on application requirements: standard industrial use, automotive qualification necessity, and PCB layout constraints.

Frequently Asked Questions (FAQ)

Q: Can RC1206FR-076M8L replace RC3216F685CS in any application?

A: RC1206FR-076M8L is a direct electrical and mechanical equivalent. The 0.1mm difference in length (3.10mm vs 3.20mm) is within standard PCB tolerance and does not affect functionality. Substitution is valid for all non-automotive applications.

Q: What is the difference between the Samsung original and YAGEO substitute?

A: Both parts share identical electrical specifications (6.8 MOhms ±1%, 0.25W), temperature coefficient (±100ppm/°C), and environmental ratings (MSL 1, ROHS3). The primary difference is manufacturer and packaging format. YAGEO offers higher inventory availability.

Q: When should I use RMCF1206FT6M80 instead of the direct equivalent?

A: RMCF1206FT6M80 includes AEC-Q200 automotive qualification, making it suitable for automotive and high-reliability applications. The ±200ppm/°C temperature coefficient is acceptable for most applications but may require circuit analysis in temperature-sensitive designs. The 0.70mm seated height requires PCB clearance verification.

Q: Are all substitutes ROHS3 compliant?

A: Yes. RC1206FR-076M8L, RMCF1206FT6M80, and CRCW12066M80FKEA are all ROHS3 compliant with MSL 1 rating and REACH unaffected status, matching the original RC3216F685CS compliance profile.

Q: What is the significance of the 1206 package designation?

A: 1206 is the imperial designation (0.126" x 0.063") equivalent to 3216 metric (3.2mm x 1.6mm). All listed substitutes use this identical package, ensuring mechanical compatibility with existing PCB footprints.

Q: Can CRCW12066M80FKEA be used in space-constrained designs?

A: Yes. CRCW12066M80FKEA has the lowest seated height (0.60mm) among the substitutes, making it suitable for applications with tight vertical clearance requirements. It maintains AEC-Q200 qualification and ±100ppm/°C temperature coefficient.

Q: Is temperature coefficient difference between ±100ppm/°C and ±200ppm/°C significant?

A: The difference is application-dependent. For precision analog circuits or temperature-compensated designs, ±100ppm/°C is preferred. For general-purpose applications, ±200ppm/°C is acceptable. Circuit analysis determines criticality.

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