RC1608F3572CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F3572CS is a 35.7 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 and is designed for general-purpose SMD applications requiring moisture-resistant construction. Equivalent and substitute parts are identified when component availability is limited, supply chain disruptions occur, or design requirements necessitate alternative sourcing from qualified manufacturers while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value	Specification
Resistance	35.7 kOhms	Exact value required for circuit function
Tolerance	±1%	Precision specification for circuit accuracy
Power Rating	0.1W (1/10W)	Thermal dissipation capability
Package / Case	0603 (1608 Metric)	Physical footprint and PCB compatibility
Composition	Thick Film	Construction technology
Temperature Coefficient	±100ppm/°C	Resistance stability over temperature range
Operating Temperature	-55°C ~ 155°C	Environmental operating limits
Moisture Sensitivity Level (MSL)	1 (Unlimited)	Handling and storage requirements
RoHS Status	ROHS3 Compliant	Environmental and regulatory compliance
Number of Terminations	2	Standard two-terminal resistor configuration

Substitute Part Grouping Explanation

Substitution eligibility for the RC1608F3572CS is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Resistance value: 35.7 kOhms (exact)
Tolerance: ±1% (exact)
Power rating: 0.1W / 1/10W (exact)
Package / Case: 0603 (1608 Metric) (exact)
Composition: Thick Film (exact)
Temperature Coefficient: ±100ppm/°C (exact)
Operating Temperature Range: -55°C ~ 155°C (exact)
Moisture Sensitivity Level: 1 (Unlimited) (exact)
Number of Terminations: 2 (exact)

Compliance Considerations:

RoHS3 Compliance status affects regulatory acceptability
REACH status affects supply chain legality in specific regions
AEC-Q200 automotive qualification is an additional feature, not a substitution requirement

All identified substitute parts meet the mandatory matching parameters. Variations in physical dimensions (length, width, height) within the 0603 package specification and packaging format (Cut Tape vs. Tape & Reel) do not affect electrical or mechanical substitutability.

Parameter Comparison

Manufacturer	Part Number	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op. Temp (°C)	MSL	RoHS Status	AEC-Q200	Packaging Format
Samsung Electro-Mechanics	RC1608F3572CS	35.7 kΩ	±1%	0.1	0603	±100ppm/°C	-55 ~ 155	1	ROHS3 Compliant	No	Cut Tape (CT)
Bourns Inc.	CR0603-FX-3572ELF	35.7 kΩ	±1%	0.1	0603	±100ppm/°C	-55 ~ 155	1	ROHS3 Compliant	No	Tape & Reel (TR)
YAGEO	RC0603FR-0735K7L	35.7 kΩ	±1%	0.1	0603	±100ppm/°C	-55 ~ 155	1	ROHS3 Compliant	No	Tape & Reel (TR)
YAGEO	AC0603FR-0735K7L	35.7 kΩ	±1%	0.1	0603	±100ppm/°C	-55 ~ 155	1	ROHS3 Compliant	Yes	Tape & Reel (TR)
Vishay Dale	CRCW060335K7FKEA	35.7 kΩ	±1%	0.1	0603	±100ppm/°C	-55 ~ 155	1	ROHS3 Compliant	Yes	Cut Tape (CT) & Digi-Reel®
Vishay Dale	CRCW060335K7FKTA	35.7 kΩ	±1%	0.1	0603	±100ppm/°C	-55 ~ 155	1	RoHS non-compliant	Yes	Cut Tape (CT) & Digi-Reel®
Panasonic Electronic Components	ERJ-3EKF3572V	35.7 kΩ	±1%	0.1	0603	±100ppm/°C	-55 ~ 155	1	ROHS3 Compliant	Yes	Cut Tape (CT) & Digi-Reel®
Stackpole Electronics Inc	RMCF0603FT35K7	35.7 kΩ	±1%	0.1	0603	±100ppm/°C	-55 ~ 155	1	ROHS3 Compliant	Yes	Tape & Reel (TR)

Engineering Selection Recommendations

Primary Substitutes (Highest Compatibility):

CR0603-FX-3572ELF (Bourns Inc.) and RC0603FR-0735K7L (YAGEO) are direct electrical and mechanical equivalents to the RC1608F3572CS. Both maintain identical electrical specifications, ROHS3 compliance, and MSL rating. Selection between these and the original part depends on packaging format requirements (Tape & Reel vs. Cut Tape) and supplier availability.

Automotive-Qualified Alternatives:

AC0603FR-0735K7L (YAGEO), CRCW060335K7FKEA (Vishay Dale), ERJ-3EKF3572V (Panasonic), and RMCF0603FT35K7 (Stackpole) include AEC-Q200 automotive qualification in addition to meeting all electrical and mechanical parameters. These parts are suitable for applications requiring automotive-grade reliability and traceability. ROHS3 compliance is maintained across all automotive-qualified options except CRCW060335K7FKTA.

Regulatory Compliance Consideration:

CRCW060335K7FKTA (Vishay Dale) is RoHS non-compliant and REACH-affected. This part is electrically and mechanically equivalent but is restricted for use in applications subject to RoHS3 and REACH regulations. Selection of this part requires explicit confirmation that regulatory restrictions do not apply to the end application.

Inventory and Availability:

Substitute parts demonstrate varying inventory levels. CRCW060335K7FKEA (Vishay Dale) and ERJ-3EKF3572V (Panasonic) show highest stock availability (50,250 and 104,387 units respectively), while RC0603FR-0735K7L (YAGEO) shows lower availability (1,400 units).

Frequently Asked Questions (FAQ)

Q: Can I substitute RC1608F3572CS with CR0603-FX-3572ELF without circuit redesign?

A: Yes. CR0603-FX-3572ELF is a direct substitute. Both parts share identical electrical specifications (35.7 kΩ ±1%, 0.1W, ±100ppm/°C, -55°C ~ 155°C), package format (0603), and MSL rating (1). The only difference is packaging format (Tape & Reel vs. Cut Tape), which does not affect circuit function or PCB assembly compatibility.

Q: What is the difference between automotive-qualified and non-automotive parts in this list?

A: Automotive-qualified parts (AC0603FR-0735K7L, CRCW060335K7FKEA, CRCW060335K7FKTA, ERJ-3EKF3572V, RMCF0603FT35K7) carry AEC-Q200 certification, indicating compliance with automotive industry reliability and testing standards. Non-automotive parts (RC1608F3572CS, CR0603-FX-3572ELF, RC0603FR-0735K7L) do not carry this certification. Automotive qualification is not required for general-purpose applications but is mandatory for automotive end-use applications.

Q: Why is CRCW060335K7FKTA listed as RoHS non-compliant?

A: CRCW060335K7FKTA is marked as RoHS non-compliant and REACH-affected in the provided specifications. This indicates the part may contain restricted substances or does not meet RoHS3 environmental standards. Use of this part is restricted in applications subject to RoHS3 regulations (EU and equivalent markets). Verify regulatory requirements before selecting this part.

Q: Does packaging format (Cut Tape vs. Tape & Reel) affect electrical performance?

A: No. Packaging format affects only handling, storage, and assembly logistics. Electrical and mechanical specifications remain identical regardless of whether the part is supplied in Cut Tape or Tape & Reel format. Selection should be based on assembly equipment compatibility and supply chain requirements.

Q: Are all substitute parts physically interchangeable on the PCB?

A: Yes. All listed substitute parts conform to the 0603 (1608 Metric) package specification. Physical dimensions vary slightly within tolerance (length 0.061" to 0.063", width 0.031" to 0.033", height 0.020" to 0.022"), but these variations remain within standard 0603 package tolerances and do not affect PCB footprint compatibility or assembly.

Q: Which substitute part should I select for maximum inventory availability?

A: ERJ-3EKF3572V (Panasonic) offers the highest inventory level at 104,387 units. CRCW060335K7FKEA (Vishay Dale) is the second option with 50,250 units. Both parts are ROHS3 compliant and AEC-Q200 qualified, making them suitable for most applications requiring high availability.

Q: Can I use these substitutes in designs originally specified for RC1608F3572CS without testing?

A: All listed substitute parts meet identical electrical and mechanical specifications. Direct substitution is valid from an engineering standpoint. However, design validation practices and quality procedures specific to your organization may require component qualification or testing before production use.

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