RC3216F680CS Equivalent & Substitute Parts

Part Overview

The RC3216F680CS is a 68 Ohm ±1% 0.25W thick film chip resistor manufactured by Samsung Electro-Mechanics in 1206 (3216 Metric) package format. This component is classified as Active product status with moisture-resistant characteristics and ROHS3 compliance. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and environmental ratings to ensure direct functional interchangeability in circuit applications.

Key Parameters

Parameter	Specification
Resistance Value	68 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 to 155°C
Moisture Sensitivity Level	MSL 1 (Unlimited)
RoHS Status	ROHS3 Compliant
Number of Terminations	2

Substitute Part Grouping Explanation

Substitution eligibility for the RC3216F680CS is determined by strict equivalence across the following parameters:

Primary Matching Criteria:

Resistance value: 68 Ohms
Tolerance: ±1%
Power rating: 0.25W (1/4W)
Package: 1206 (3216 Metric)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C to 155°C
Termination count: 2
RoHS compliance: ROHS3

Substitution Categories:

Direct Equivalents meet all primary criteria with identical electrical and mechanical specifications:

CR1206-FX-68R0ELF (Bourns Inc.)
RC1206FR-0768RL (YAGEO)
RMCF1206FT68R0 (Stackpole Electronics Inc)

Compatible Substitutes meet all primary criteria with minor dimensional variations within acceptable tolerances:

AC1206FR-0768RL (YAGEO) - includes AEC-Q200 automotive rating
CRCW120668R0FKEA (Vishay Dale) - includes AEC-Q200 automotive rating
KTR18EZPF68R0 (Rohm Semiconductor) - includes AEC-Q200 automotive rating
MCR18ERTF68R0 (Rohm Semiconductor) - standard thick film

Functional Alternatives meet electrical specifications but differ in power rating or additional features:

CRCW120668R0FKEAHP (Vishay Dale) - 0.75W (3/4W) power rating with pulse withstanding capability
ERJ-8ENF68R0V (Panasonic Electronic Components) - automotive AEC-Q200 rated, product status Not For New Designs

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp (°C)	MSL	RoHS	Product Status	Features
RC3216F680CS	Samsung Electro-Mechanics	68Ω	±1%	0.25	1206	±100ppm/°C	-55~155	1	ROHS3	Active	Moisture Resistant
CR1206-FX-68R0ELF	Bourns Inc.	68Ω	±1%	0.25	1206	±100ppm/°C	-55~155	1	ROHS3	Active	Moisture Resistant
ERJ-8ENF68R0V	Panasonic Electronic Components	68Ω	±1%	0.25	1206	±100ppm/°C	-55~155	1	ROHS3	Not For New Designs	Automotive AEC-Q200
RC1206FR-0768RL	YAGEO	68Ω	±1%	0.25	1206	±100ppm/°C	-55~155	1	ROHS3	Active	Moisture Resistant
RMCF1206FT68R0	Stackpole Electronics Inc	68Ω	±1%	0.25	1206	±100ppm/°C	-55~155	1	ROHS3	Active	Automotive AEC-Q200
AC1206FR-0768RL	YAGEO	68Ω	±1%	0.25	1206	±100ppm/°C	-55~155	1	ROHS3	Active	Automotive AEC-Q200, Moisture Resistant
CRCW120668R0FKEA	Vishay Dale	68Ω	±1%	0.25	1206	±100ppm/°C	-55~155	1	ROHS3	Active	Automotive AEC-Q200
CRCW120668R0FKEAHP	Vishay Dale	68Ω	±1%	0.75	1206	±100ppm/°C	-55~155	1	ROHS3	Active	Automotive AEC-Q200, Pulse Withstanding
KTR18EZPF68R0	Rohm Semiconductor	68Ω	±1%	0.25	1206	±100ppm/°C	-55~155	1	ROHS3	Active	Automotive AEC-Q200, High Voltage
MCR18ERTF68R0	Rohm Semiconductor	68Ω	±1%	0.25	1206	±100ppm/°C	-55~155	1	ROHS3	Discontinued at DiGi Electronics	Standard Thick Film

Engineering Selection Recommendations

For Standard Industrial Applications: Select CR1206-FX-68R0ELF (Bourns Inc.), RC1206FR-0768RL (YAGEO), or RMCF1206FT68R0 (Stackpole Electronics Inc). All three maintain Active product status with full ROHS3 compliance and identical electrical specifications to the RC3216F680CS.

For Automotive Applications: Select RMCF1206FT68R0 (Stackpole Electronics Inc), AC1206FR-0768RL (YAGEO), CRCW120668R0FKEA (Vishay Dale), or KTR18EZPF68R0 (Rohm Semiconductor). These parts carry AEC-Q200 automotive qualification and Active product status.

For High-Power Pulse Applications: Select CRCW120668R0FKEAHP (Vishay Dale) only when 0.75W power rating and pulse withstanding capability are required. This part differs from the primary specification in power rating and is suitable for applications exceeding 0.25W continuous dissipation.

Avoid for New Designs: ERJ-8ENF68R0V (Panasonic Electronic Components) carries "Not For New Designs" product status despite meeting electrical specifications. MCR18ERTF68R0 (Rohm Semiconductor) is discontinued at DiGi Electronics and should not be selected for new production.

Frequently Asked Questions (FAQ)

Q: Can I substitute RC3216F680CS with any 68 Ohm 1% resistor in 1206 package?

A: No. Substitution requires matching all specified parameters: 68 Ohms resistance, ±1% tolerance, 0.25W power rating, 1206 package, thick film composition, ±100ppm/°C temperature coefficient, -55°C to 155°C operating range, and ROHS3 compliance. Dimensional variations within manufacturer tolerances are acceptable.

Q: What is the difference between CR1206-FX-68R0ELF and RMCF1206FT68R0?

A: Both are direct electrical equivalents with identical resistance, tolerance, power rating, and operating specifications. CR1206-FX-68R0ELF (Bourns) is a standard industrial-grade component. RMCF1206FT68R0 (Stackpole) includes AEC-Q200 automotive qualification. Selection depends on application requirements and supply chain availability.

Q: Why is CRCW120668R0FKEAHP listed as a substitute if it has 0.75W power rating?

A: CRCW120668R0FKEAHP is classified as a functional alternative, not a direct equivalent. It meets all electrical specifications but provides higher power dissipation capability (0.75W vs. 0.25W) and pulse withstanding features. Use this part only when application requirements exceed the 0.25W specification of the RC3216F680CS.

Q: Can I use MCR18ERTF68R0 in new production?

A: No. MCR18ERTF68R0 is discontinued at DiGi Electronics and carries no special automotive or industrial qualification. For new designs, select from Active status parts: CR1206-FX-68R0ELF, RC1206FR-0768RL, or RMCF1206FT68R0.

Q: What does MSL 1 (Unlimited) mean for moisture sensitivity?

A: MSL 1 indicates the component has unlimited shelf life without moisture bake-out requirements. All listed substitutes carry identical MSL 1 rating, ensuring equivalent moisture handling and storage requirements.

Q: Are there dimensional differences between substitute parts?

A: Minor dimensional variations exist within manufacturer tolerances. Length ranges from 3.05mm to 3.20mm, and height from 0.60mm to 0.75mm. These variations are within standard PCB design tolerances and do not affect electrical performance or mechanical fit in standard 1206 footprints.

Q: Which substitute offers the best availability?

A: CRCW120668R0FKEA (Vishay Dale) shows 42,164 pieces in stock. RC1206FR-0768RL (YAGEO) shows 47,856 pieces. Both are Active status with automotive qualification and represent optimal availability for immediate procurement.

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