RC1608F3161CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F3161CS is a 3.16 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in 0603 (1608 Metric) package format with 0.1W power rating. This component is classified as Active product status with moisture-resistant construction and ROHS3 compliance. Equivalent and substitute parts are necessary when the primary part experiences supply constraints, extended lead times, or when design requirements mandate alternative manufacturer specifications such as automotive-grade certifications or different packaging formats.

Key Parameters

Parameter	Value	Specification Basis
Resistance Value	3.16 kOhms	Core electrical specification
Tolerance	±1%	Precision requirement
Power Rating	0.1W (1/10W)	Thermal dissipation capacity
Package / Case	0603 (1608 Metric)	Physical footprint and mounting
Composition	Thick Film	Construction technology
Temperature Coefficient	±100ppm/°C	Stability over temperature range
Operating Temperature Range	-55°C ~ 155°C	Environmental operating limits
Moisture Sensitivity Level (MSL)	1 (Unlimited)	Handling and storage requirements
RoHS Status	ROHS3 Compliant	Environmental compliance
Number of Terminations	2	Connection points

Substitute Part Grouping Explanation

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

Mandatory Matching Parameters:

Resistance Value: 3.16 kOhms (exact match required)
Tolerance: ±1% (exact match required)
Power Rating: 0.1W / 1/10W (exact match required)
Package / Case: 0603 (1608 Metric) (exact match required)
Composition: Thick Film (exact match required)
Temperature Coefficient: ±100ppm/°C (exact match required)
Operating Temperature Range: -55°C ~ 155°C (exact match required)
Number of Terminations: 2 (exact match required)

Compliance Parameters:

RoHS Status: ROHS3 Compliant or equivalent
MSL Rating: 1 (Unlimited) or equivalent
REACH Status: REACH Unaffected or REACH Affected (noted for selection)

Optional Enhancement Parameters:

Automotive AEC-Q200 certification (available in select substitutes)
Packaging format (Tape & Reel or Cut Tape variants)

All substitute parts listed maintain electrical and mechanical equivalence to the primary part. Automotive-grade variants (AC0603FR-073K16L, CRCW06033K16FKEA, CRCW06033K16FKTA, ERJ-3EKF3161V, RMCF0603FT3K16) include AEC-Q200 qualification and are suitable for applications requiring automotive-grade reliability.

Parameter Comparison

Manufacturer	Part Number	Resistance	Tolerance	Power	Package	Temp Coeff	Op Temp	MSL	RoHS	AEC-Q200	Product Status
Samsung Electro-Mechanics	RC1608F3161CS	3.16 kΩ	±1%	0.1W	0603	±100ppm/°C	-55~155°C	1	ROHS3	No	Active
Bourns Inc.	CR0603-FX-3161ELF	3.16 kΩ	±1%	0.1W	0603	±100ppm/°C	-55~155°C	1	ROHS3	No	Active
YAGEO	RC0603FR-073K16L	3.16 kΩ	±1%	0.1W	0603	±100ppm/°C	-55~155°C	1	ROHS3	No	Active
Rohm Semiconductor	MCR03ERTF3161	3.16 kΩ	±1%	0.1W	0603	±100ppm/°C	-55~155°C	1	ROHS3	No	Discontinued
YAGEO	AC0603FR-073K16L	3.16 kΩ	±1%	0.1W	0603	±100ppm/°C	-55~155°C	1	ROHS3	Yes	Active
Vishay Dale	CRCW06033K16FKEA	3.16 kΩ	±1%	0.1W	0603	±100ppm/°C	-55~155°C	1	ROHS3	Yes	Active
Vishay Dale	CRCW06033K16FKTA	3.16 kΩ	±1%	0.1W	0603	±100ppm/°C	-55~155°C	1	RoHS NC	Yes	Active
Panasonic Electronic Components	ERJ-3EKF3161V	3.16 kΩ	±1%	0.1W	0603	±100ppm/°C	-55~155°C	1	ROHS3	Yes	Active
Stackpole Electronics Inc	RMCF0603FT3K16	3.16 kΩ	±1%	0.1W	0603	±100ppm/°C	-55~155°C	1	ROHS3	Yes	Active

Engineering Selection Recommendations

Direct Substitutes (Highest Compatibility):

CR0603-FX-3161ELF (Bourns Inc.) and RC0603FR-073K16L (YAGEO) are direct functional equivalents with identical electrical specifications, package dimensions, and ROHS3 compliance. Both maintain active product status and are suitable for direct replacement in non-automotive applications.

Automotive-Grade Alternatives:

AC0603FR-073K16L (YAGEO), CRCW06033K16FKEA (Vishay Dale), ERJ-3EKF3161V (Panasonic), and RMCF0603FT3K16 (Stackpole) include AEC-Q200 automotive qualification. These parts are required for automotive circuit applications and provide enhanced reliability documentation. CRCW06033K16FKEA and RMCF0603FT3K16 offer the highest inventory availability (55,608 and 178,881 units respectively).

Compliance Considerations:

CRCW06033K16FKTA (Vishay Dale) carries RoHS non-compliant status and REACH Affected designation. This part is suitable only for applications where RoHS exemptions apply or legacy system maintenance is required.

Discontinued Part:

MCR03ERTF3161 (Rohm Semiconductor) is discontinued at DiGi Electronics and should not be selected for new designs. Existing inventory (973 units) may be available through alternative distribution channels for legacy system support only.

Frequently Asked Questions (FAQ)

Q: Can I substitute RC1608F3161CS with any of the listed parts in my design?

A: Yes, all listed parts except MCR03ERTF3161 (discontinued) are electrically and mechanically equivalent. Selection depends on your application requirements. For automotive applications, select parts with AEC-Q200 certification. For standard industrial applications, any active-status part is suitable.

Q: What is the difference between the standard and automotive-grade versions?

A: Automotive-grade parts (AC0603FR-073K16L, CRCW06033K16FKEA, CRCW06033K16FKTA, ERJ-3EKF3161V, RMCF0603FT3K16) carry AEC-Q200 qualification, indicating compliance with automotive reliability and testing standards. Standard versions (RC1608F3161CS, CR0603-FX-3161ELF, RC0603FR-073K16L) do not include this certification.

Q: Does packaging format affect substitution compatibility?

A: Packaging format (Tape & Reel vs. Cut Tape) does not affect electrical or mechanical compatibility. Selection should be based on your assembly process requirements. Tape & Reel packaging is standard for automated pick-and-place assembly; Cut Tape is suitable for manual assembly or lower-volume production.

Q: Why is CRCW06033K16FKTA marked as RoHS non-compliant?

A: CRCW06033K16FKTA carries RoHS non-compliant status and REACH Affected designation. This part is suitable only for applications where RoHS exemptions are permitted or for legacy system maintenance. For new designs requiring RoHS3 compliance, select alternative parts with ROHS3 Compliant status.

Q: Which substitute offers the best inventory availability?

A: RMCF0603FT3K16 (Stackpole Electronics) offers the highest inventory availability at 178,881 units, followed by CRCW06033K16FKEA (Vishay Dale) at 55,608 units. Both are active products with AEC-Q200 certification.

Q: Are all parts rated for the same temperature range?

A: Yes, all listed parts operate across the identical temperature range of -55°C to 155°C with ±100ppm/°C temperature coefficient, ensuring thermal performance equivalence.

Q: Can I use these parts interchangeably on the same PCB?

A: Yes, all substitute parts maintain identical 0603 (1608 Metric) package dimensions and 2-termination configuration. PCB footprints are interchangeable. Physical dimensions vary slightly (within manufacturing tolerance) but do not affect PCB layout compatibility.

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