RCS3216F680CS Equivalent & Substitute Parts Reference

Part Overview

The RCS3216F680CS is a 68 Ohm ±1% 0.25W (1/4W) thick film chip resistor manufactured by Samsung Electro-Mechanics in the 1206 (3216 Metric) package. This component is classified as Active product status and features anti-sulfur and moisture-resistant construction. The part is ROHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Equivalent and substitute parts are identified based on matching electrical specifications (resistance value, tolerance, power rating) and mechanical compatibility (package type, dimensions, termination count) within the 1206 form factor. Substitute parts from alternative manufacturers provide functional equivalence while maintaining the same core electrical and thermal characteristics.

Key Parameters

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

Substitute Part Grouping Explanation

Substitute parts for the RCS3216F680CS are qualified based on the following criteria:

Electrical Equivalence:

Resistance value: 68 Ohms
Tolerance: ±1%
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C ~ 155°C

Mechanical Compatibility:

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

Compliance & Environmental:

RoHS3 compliance
Moisture Sensitivity Level 1 (Unlimited)

Substitute parts are grouped into two categories based on power rating:

Category A - Direct Equivalents (0.25W / 1/4W): AC1206FR-0768RL, CR1206-FX-68R0ELF, CRCW120668R0FKEA, RC1206FR-0768RL, ERJ-8ENF68R0V

Category B - Higher Power Rating (0.75W / 3/4W): CRCW120668R0FKEAHP

Parts in Category B provide increased power dissipation capability while maintaining all other electrical and mechanical parameters.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (Watts)	Package	Temp Coeff	Operating Temp	Size (mm)	Height Max (mm)	RoHS Status	Product Status
RCS3216F680CS	Samsung Electro-Mechanics	68 Ω	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	3.20 x 1.60	0.66	ROHS3	Active
AC1206FR-0768RL	YAGEO	68 Ω	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	3.10 x 1.60	0.65	ROHS3	Active
CR1206-FX-68R0ELF	Bourns Inc.	68 Ω	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	3.20 x 1.60	0.75	ROHS3	Active
CRCW120668R0FKEA	Vishay Dale	68 Ω	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	3.20 x 1.60	0.60	ROHS3	Active
CRCW120668R0FKEAHP	Vishay Dale	68 Ω	±1%	0.75W	1206	±100ppm/°C	-55°C ~ 155°C	3.10 x 1.60	0.65	ROHS3	Active
ERJ-8ENF68R0V	Panasonic Electronic Components	68 Ω	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	3.20 x 1.60	0.70	ROHS3	Not For New Designs
RC1206FR-0768RL	YAGEO	68 Ω	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	3.10 x 1.60	0.65	ROHS3	Active

Engineering Selection Recommendations

For Direct Replacement (0.25W Power Rating):

AC1206FR-0768RL, CR1206-FX-68R0ELF, CRCW120668R0FKEA, and RC1206FR-0768RL are functionally equivalent to RCS3216F680CS. All maintain Active product status and ROHS3 compliance. These parts are suitable for applications requiring identical electrical and thermal performance characteristics.

For Enhanced Power Dissipation:

CRCW120668R0FKEAHP provides 0.75W (3/4W) power rating while maintaining all other electrical specifications. This part is appropriate for applications where increased thermal margin is required within the same 1206 package footprint.

Product Status Consideration:

ERJ-8ENF68R0V is classified as "Not For New Designs" and should be used only for legacy system maintenance or existing design continuity. For new designs, select from parts with Active product status: AC1206FR-0768RL, CR1206-FX-68R0ELF, CRCW120668R0FKEA, CRCW120668R0FKEAHP, or RC1206FR-0768RL.

Compliance & Certifications:

All substitute parts listed maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard PCB assembly and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can CRCW120668R0FKEAHP (0.75W) be used as a direct replacement for RCS3216F680CS (0.25W)?

A: Yes. The 0.75W part provides equivalent electrical performance with increased power dissipation capability. The 1206 package dimensions and all electrical parameters (68 Ω, ±1%, ±100ppm/°C, -55°C ~ 155°C) are identical. This substitution is suitable when additional thermal margin is beneficial.

Q: Are there dimensional differences between substitute parts?

A: Minor dimensional variations exist within the 1206 package specification. Length ranges from 3.10mm to 3.20mm, and height ranges from 0.60mm to 0.75mm. All parts meet 1206 package requirements and are mechanically compatible for standard PCB assembly.

Q: Which substitute parts are recommended for new designs?

A: Parts with Active product status are recommended for new designs: AC1206FR-0768RL, CR1206-FX-68R0ELF, CRCW120668R0FKEA, CRCW120668R0FKEAHP, and RC1206FR-0768RL. ERJ-8ENF68R0V is classified as "Not For New Designs" and should be avoided in new applications.

Q: Do all substitute parts meet the same compliance requirements?

A: Yes. All listed substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, matching the RCS3216F680CS compliance profile.

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

A: The temperature coefficient specifies resistance change per degree Celsius across the operating range. All parts listed maintain ±100ppm/°C, ensuring consistent thermal stability across the -55°C ~ 155°C operating temperature range.

Q: Are automotive-qualified parts (AEC-Q200) interchangeable with non-automotive versions?

A: Automotive-qualified parts (AC1206FR-0768RL, CRCW120668R0FKEA, CRCW120668R0FKEAHP, ERJ-8ENF68R0V) meet additional reliability and qualification standards. These parts are functionally compatible with non-automotive applications and provide enhanced reliability margins.

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