RC1608F2100CS Equivalent & Substitute Parts

Part Overview

The RC1608F2100CS is a 210 Ohm ±1% thick film chip resistor in 0603 (1608 Metric) package manufactured by Samsung Electro-Mechanics. This component is rated for 0.1W (1/10W) power dissipation with moisture-resistant construction and operates across -55°C to 155°C. The part is currently active in production with 953 units in stock.

Equivalent and substitute parts are necessary when the primary manufacturer part becomes unavailable, when supply chain constraints require alternative sourcing, or when design requirements call for components with enhanced certifications such as automotive AEC-Q200 qualification.

Key Parameters

Parameter	Value
Resistance	210 Ohms
Tolerance	±1%
Power Rating	0.1W (1/10W)
Package	0603 (1608 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
Packaging Type	Tape & Reel (TR)

Substitute Part Grouping Explanation

Substitution eligibility for the RC1608F2100CS is determined by strict equivalence across the following parameters:

Resistance value: 210 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
Moisture Sensitivity Level: MSL 1
RoHS compliance: ROHS3 Compliant

All substitute parts listed meet these core electrical and mechanical parameters. Parts are further categorized by product status and additional certifications:

Direct Substitutes: CR0603-FX-2100ELF (Bourns Inc.), RC0603FR-07210RL (YAGEO) — functionally identical with active product status
Upgrade Option: MCR03ERTF2100 (Rohm Semiconductor) — meets all parameters but discontinued at DiGi Electronics
Enhanced Alternatives: AC0603FR-07210RL (YAGEO), CRCW0603210RFKEA (Vishay Dale), ERJ-3EKF2100V (Panasonic), RMCF0603FT210R (Stackpole) — include automotive AEC-Q200 certification in addition to base specifications

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp Range	MSL	RoHS	Product Status	Features
RC1608F2100CS	Samsung Electro-Mechanics	210 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	1	ROHS3	Active	Moisture Resistant
CR0603-FX-2100ELF	Bourns Inc.	210 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	1	ROHS3	Active	Moisture Resistant
RC0603FR-07210RL	YAGEO	210 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	1	ROHS3	Active	Moisture Resistant
MCR03ERTF2100	Rohm Semiconductor	210 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	1	ROHS3	Discontinued at DiGi Electronics	—
AC0603FR-07210RL	YAGEO	210 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	1	ROHS3	Active	Automotive AEC-Q200, Moisture Resistant
CRCW0603210RFKEA	Vishay Dale	210 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	1	ROHS3	Active	Automotive AEC-Q200
ERJ-3EKF2100V	Panasonic Electronic Components	210 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	1	ROHS3	Active	Automotive AEC-Q200
RMCF0603FT210R	Stackpole Electronics Inc	210 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	1	ROHS3	Active	Automotive AEC-Q200

Engineering Selection Recommendations

For standard industrial and consumer applications, CR0603-FX-2100ELF (Bourns Inc.) and RC0603FR-07210RL (YAGEO) are direct functional equivalents with active product status and equivalent inventory availability.

For automotive applications or designs requiring AEC-Q200 qualification, AC0603FR-07210RL (YAGEO), CRCW0603210RFKEA (Vishay Dale), ERJ-3EKF2100V (Panasonic), or RMCF0603FT210R (Stackpole) are appropriate selections. All four parts maintain identical electrical specifications while adding automotive-grade reliability certification.

MCR03ERTF2100 (Rohm Semiconductor) meets all electrical and mechanical parameters but carries discontinued status at DiGi Electronics, making it unsuitable for new designs requiring long-term supply assurance.

Frequently Asked Questions (FAQ)

Q: Can I substitute RC1608F2100CS with any of the listed parts without circuit redesign?

A: Yes. All listed substitute parts share identical resistance (210 Ω), tolerance (±1%), power rating (0.1W), package (0603), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). Direct pin-for-pin substitution is electrically and mechanically compatible.

Q: What is the difference between direct substitutes and AEC-Q200 variants?

A: Direct substitutes (CR0603-FX-2100ELF, RC0603FR-07210RL) provide identical electrical performance for general applications. AEC-Q200 variants (AC0603FR-07210RL, CRCW0603210RFKEA, ERJ-3EKF2100V, RMCF0603FT210R) include automotive-grade qualification and enhanced reliability testing, required for automotive and safety-critical applications.

Q: Are there packaging differences between substitute parts?

A: All parts use 0603 (1608 Metric) package with identical footprint dimensions (0.063" L x 0.031" W / 1.60mm x 0.80mm). Minor height variations exist (0.020" to 0.022" seated height), but these fall within standard PCB assembly tolerances and do not affect interchangeability.

Q: Why is MCR03ERTF2100 listed if it is discontinued?

A: MCR03ERTF2100 meets all electrical and mechanical specifications and remains available in limited inventory (2,661 units). It is included for reference in legacy design reviews or when existing stock is available. For new designs, active-status alternatives are recommended.

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 parts carry MSL 1 rating, eliminating moisture-related handling constraints during assembly and storage.

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