RC1608F22R1CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F22R1CS is a 22.1 Ohm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.1W (1/10W) power dissipation in a 0603 (1608 Metric) surface mount package. This component is classified as Active product status with moisture resistant construction and unlimited moisture sensitivity level (MSL 1). The part is ROHS3 compliant and suitable for general industrial and commercial applications requiring precision resistive elements with stable temperature characteristics across the -55°C to 155°C operating range.

Equivalent and substitute parts are necessary when the primary manufacturer part becomes unavailable, when supply chain optimization is required, or when design flexibility permits selection from multiple qualified sources meeting identical electrical and mechanical specifications.

Key Parameters

Parameter	Value	Specification Basis
Resistance Value	22.1 Ohms	Core electrical specification
Tolerance	±1%	Precision grade requirement
Power Rating	0.1W (1/10W)	Thermal dissipation capacity
Package Type	0603 (1608 Metric)	Physical form factor and PCB compatibility
Composition	Thick Film	Manufacturing technology
Temperature Coefficient	±100ppm/°C	Stability over temperature range
Operating Temperature Range	-55°C to 155°C	Environmental operating limits
Moisture Resistance	Yes	Environmental protection feature
Terminations	2	Standard chip resistor configuration
RoHS Status	ROHS3 Compliant	Regulatory compliance
MSL Rating	1 (Unlimited)	Moisture sensitivity classification

Substitute Part Grouping Explanation

Substitution eligibility for the RC1608F22R1CS is determined by strict equivalence across all critical electrical and mechanical parameters. The following parameters must match identically for direct substitution:

Mandatory Matching Parameters:

Resistance value: 22.1 Ohms
Tolerance: ±1%
Power rating: 0.1W (1/10W)
Package designation: 0603 (1608 Metric)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C to 155°C
Number of terminations: 2
Moisture sensitivity level: 1 (Unlimited)

Acceptable Variation Parameters:

Manufacturer identity (different qualified sources)
Packaging format (Tape & Reel vs. Cut Tape & Digi-Reel)
Minor dimensional tolerances within 0603 specification
Regulatory compliance status (ROHS3 vs. AEC-Q200 certifications represent enhanced qualification levels)

Substitute parts are grouped into two categories:

Direct Equivalents: Parts meeting all mandatory parameters with identical base specifications and standard industrial qualification.

Similar Parts with Enhanced Qualification: Parts meeting all mandatory parameters but carrying additional automotive AEC-Q200 certification, suitable for applications requiring higher reliability standards.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power	Package	Temp Coeff	Temp Range	Composition	RoHS Status	AEC-Q200	Inventory
RC1608F22R1CS	Samsung Electro-Mechanics	22.1Ω	±1%	0.1W	0603	±100ppm/°C	-55 to 155°C	Thick Film	ROHS3	No	857
CR0603-FX-22R1ELF	Bourns Inc.	22.1Ω	±1%	0.1W	0603	±100ppm/°C	-55 to 155°C	Thick Film	ROHS3	No	264280
RC0603FR-0722R1L	YAGEO	22.1Ω	±1%	0.1W	0603	±100ppm/°C	-55 to 155°C	Thick Film	ROHS3	No	5100
AC0603FR-0722R1L	YAGEO	22.1Ω	±1%	0.1W	0603	±100ppm/°C	-55 to 155°C	Thick Film	ROHS3	Yes	2107
CRCW060322R1FKEA	Vishay Dale	22.1Ω	±1%	0.1W	0603	±100ppm/°C	-55 to 155°C	Thick Film	ROHS3	Yes	28797
CRCW060322R1FKTA	Vishay Dale	22.1Ω	±1%	0.1W	0603	±100ppm/°C	-55 to 155°C	Thick Film	RoHS Non-Compliant	Yes	45747
ERJ-3EKF22R1V	Panasonic Electronic Components	22.1Ω	±1%	0.1W	0603	±100ppm/°C	-55 to 155°C	Thick Film	ROHS3	Yes	205974
RMCF0603FT22R1	Stackpole Electronics Inc	22.1Ω	±1%	0.1W	0603	±100ppm/°C	-55 to 155°C	Thick Film	ROHS3	Yes	263572

Engineering Selection Recommendations

For Standard Industrial Applications (ROHS3 Compliant, Non-Automotive):

CR0603-FX-22R1ELF (Bourns Inc.) is the primary direct equivalent, offering identical electrical and mechanical specifications with ROHS3 compliance and substantial inventory availability (264,280 units). This part maintains full compatibility with the RC1608F22R1CS across all critical parameters.

RC0603FR-0722R1L (YAGEO) provides an alternative direct equivalent with ROHS3 compliance and identical specifications, suitable when Bourns sourcing is constrained.

For Automotive and High-Reliability Applications (AEC-Q200 Certified):

ERJ-3EKF22R1V (Panasonic Electronic Components) is recommended for applications requiring automotive-grade qualification. This part meets all mandatory electrical and mechanical parameters while carrying AEC-Q200 certification, with high inventory availability (205,974 units).

RMCF0603FT22R1 (Stackpole Electronics Inc) provides an alternative automotive-qualified option with AEC-Q200 certification and excellent inventory depth (263,572 units).

CRCW060322R1FKEA (Vishay Dale) offers automotive AEC-Q200 qualification with ROHS3 compliance and substantial inventory (28,797 units).

Parts Requiring Regulatory Review:

CRCW060322R1FKTA (Vishay Dale) carries AEC-Q200 certification but is RoHS non-compliant and REACH affected. This part is suitable only for applications where RoHS exemptions apply or where legacy component specifications are mandated.

Frequently Asked Questions (FAQ)

Q: Can I substitute the RC1608F22R1CS with any of the listed parts without design changes?

A: Yes. CR0603-FX-22R1ELF, RC0603FR-0722R1L, and all AEC-Q200 qualified parts (AC0603FR-0722R1L, CRCW060322R1FKEA, ERJ-3EKF22R1V, RMCF0603FT22R1) are electrically and mechanically equivalent. They share identical resistance value, tolerance, power rating, package type, temperature coefficient, and operating temperature range. Direct PCB substitution is permissible without circuit redesign.

Q: What is the difference between the standard RC1608F22R1CS and the AEC-Q200 qualified alternatives?

A: The RC1608F22R1CS is qualified to industrial standards. AEC-Q200 qualified alternatives (AC0603FR-0722R1L, CRCW060322R1FKEA, ERJ-3EKF22R1V, RMCF0603FT22R1) undergo additional automotive-grade testing and reliability screening. All parts meet identical electrical specifications; AEC-Q200 certification indicates enhanced qualification for automotive and high-reliability applications.

Q: Are there packaging format differences between substitute parts?

A: Yes. Most parts are supplied in Tape & Reel (TR) format. ERJ-3EKF22R1V and CRCW060322R1FKEA are available in Cut Tape (CT) & Digi-Reel format. Both formats are compatible with standard pick-and-place assembly equipment; format selection depends on production volume and assembly line configuration.

Q: Which substitute part has the highest inventory availability?

A: RMCF0603FT22R1 (Stackpole Electronics Inc) offers the highest inventory level at 263,572 units, followed by ERJ-3EKF22R1V (Panasonic) at 205,974 units. CR0603-FX-22R1ELF (Bourns) provides 264,280 units. These high-inventory options are suitable for volume production requirements.

Q: Is CRCW060322R1FKTA suitable for new designs?

A: CRCW060322R1FKTA is RoHS non-compliant and REACH affected. This part is restricted to applications where RoHS exemptions are explicitly documented or where legacy component specifications mandate its use. For new designs, ROHS3 compliant alternatives are recommended.

Q: Do all substitute parts have the same moisture sensitivity level?

A: Yes. All listed substitute parts carry MSL 1 (Unlimited) rating, identical to the RC1608F22R1CS. This classification indicates unlimited shelf life under normal storage conditions without special moisture control requirements.

Q: What is the temperature coefficient significance for this resistor?

A: All parts, including the RC1608F22R1CS and all substitutes, maintain ±100ppm/°C temperature coefficient across the -55°C to 155°C operating range. This specification ensures stable resistance value with minimal drift across the full operating temperature envelope, critical for precision circuit applications.

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