RC1608F330CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F330CS is a 33 Ohm ±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 unlimited moisture sensitivity level (MSL 1). The RC1608F330CS serves as a standard general-purpose resistor in consumer and industrial applications requiring stable resistance values across the -55°C to 155°C operating temperature range. Equivalent and substitute parts are identified to provide design flexibility, supply chain alternatives, and application-specific feature enhancements such as automotive qualification or enhanced environmental protection.

Key Parameters

Parameter	Value	Specification Basis
Resistance Value	33 Ohms	Primary electrical specification
Tolerance	±1%	Precision requirement
Power Rating	0.1W (1/10W)	Thermal dissipation capacity
Package / Case	0603 (1608 Metric)	Physical form factor and PCB footprint
Composition	Thick Film	Manufacturing technology
Temperature Coefficient	±100ppm/°C	Resistance stability over temperature
Operating Temperature Range	-55°C to 155°C	Environmental operating limits
Terminations	2	Standard two-terminal configuration
RoHS Status	ROHS3 Compliant	Environmental and regulatory compliance
Moisture Sensitivity Level (MSL)	1 (Unlimited)	Handling and storage requirements

Substitute Part Grouping Explanation

Substitute parts for the RC1608F330CS are classified into three categories based on substitution relationship and feature alignment:

Direct Manufacturer Substitutes maintain identical electrical specifications, package dimensions, and core features. These parts are interchangeable without design modification:

CR0603-FX-33R0ELF (Bourns Inc.)
RC0603FR-0733RL (YAGEO)

Upgrade Substitutes provide enhanced specifications or additional certifications while maintaining core electrical parameters and package compatibility. These parts offer improved performance characteristics:

CRG0603F33R (TE Connectivity Passive Product) — Higher temperature coefficient tolerance (±200ppm/°C)
KTR03EZPF33R0 (Rohm Semiconductor) — Automotive AEC-Q200 qualification with high voltage capability

Similar/Alternative Substitutes share identical electrical and mechanical specifications but include additional environmental features or certifications. These parts are suitable for applications requiring specific compliance or environmental protection:

AC0603FR-0733RL (YAGEO) — Automotive AEC-Q200 with moisture resistance
AF0603FR-0733RL (YAGEO) — Anti-sulfur with automotive AEC-Q200
CRCW060333R0FKEA (Vishay Dale) — Automotive AEC-Q200
CRCW060333R0FKEB (Vishay Dale) — Automotive AEC-Q200 (discontinued at DiGi Electronics)
CRCW060333R0FKTA (Vishay Dale) — Automotive AEC-Q200 (RoHS non-compliant)
ERJ-3EKF33R0V (Panasonic Electronic Components) — Automotive AEC-Q200

Substitution Logic: All listed parts maintain the following critical parameters identical to the RC1608F330CS:

Resistance: 33 Ohms
Tolerance: ±1%
Power Rating: 0.1W
Package: 0603 (1608 Metric)
Composition: Thick Film
Operating Temperature: -55°C to 155°C
Terminations: 2
MSL: 1 (Unlimited)

Variations in temperature coefficient (±100ppm/°C vs. ±200ppm/°C) and additional certifications (AEC-Q200, anti-sulfur) do not prevent substitution but indicate enhanced or specialized capabilities for specific application requirements.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff (ppm/°C)	Op Temp (°C)	RoHS Status	AEC-Q200	Features
RC1608F330CS	Samsung Electro-Mechanics	33Ω	±1%	0.1	0603	±100	-55 to 155	ROHS3	No	Moisture Resistant
CR0603-FX-33R0ELF	Bourns Inc.	33Ω	±1%	0.1	0603	±100	-55 to 155	ROHS3	No	Moisture Resistant
RC0603FR-0733RL	YAGEO	33Ω	±1%	0.1	0603	±100	-55 to 155	ROHS3	No	Moisture Resistant
CRG0603F33R	TE Connectivity	33Ω	±1%	0.1	0603	±200	-55 to 155	ROHS3	No	Thick Film
KTR03EZPF33R0	Rohm Semiconductor	33Ω	±1%	0.1	0603	±100	-55 to 155	ROHS3	Yes	Automotive, High Voltage
AC0603FR-0733RL	YAGEO	33Ω	±1%	0.1	0603	±100	-55 to 155	ROHS3	Yes	Automotive, Moisture Resistant
AF0603FR-0733RL	YAGEO	33Ω	±1%	0.1	0603	±100	-55 to 155	ROHS3	Yes	Anti-Sulfur, Automotive
CRCW060333R0FKEA	Vishay Dale	33Ω	±1%	0.1	0603	±100	-55 to 155	ROHS3	Yes	Automotive
CRCW060333R0FKEB	Vishay Dale	33Ω	±1%	0.1	0603	±100	-55 to 155	ROHS3	Yes	Automotive
CRCW060333R0FKTA	Vishay Dale	33Ω	±1%	0.1	0603	±100	-55 to 155	Non-compliant	Yes	Automotive
ERJ-3EKF33R0V	Panasonic	33Ω	±1%	0.1	0603	±100	-55 to 155	ROHS3	Yes	Automotive

Engineering Selection Recommendations

For General-Purpose Applications (Non-Automotive): Select CR0603-FX-33R0ELF (Bourns Inc.) or RC0603FR-0733RL (YAGEO) as direct substitutes. Both maintain identical electrical specifications, package compatibility, and RoHS3 compliance with the RC1608F330CS. These parts provide equivalent performance without design modification.

For Automotive Applications (AEC-Q200 Required): Select from the following AEC-Q200 qualified alternatives:

KTR03EZPF33R0 (Rohm Semiconductor) for high-voltage automotive circuits
AC0603FR-0733RL (YAGEO) for standard automotive applications with moisture resistance
AF0603FR-0733RL (YAGEO) for environments requiring anti-sulfur protection
CRCW060333R0FKEA (Vishay Dale) for automotive applications with RoHS3 compliance
ERJ-3EKF33R0V (Panasonic Electronic Components) for high-volume automotive production

For RoHS3 Compliance Requirement: All substitute parts except CRCW060333R0FKTA maintain ROHS3 Compliant status. CRCW060333R0FKTA is RoHS non-compliant and REACH Affected; use only when legacy design requirements mandate this specific part number.

For Temperature Coefficient Tolerance: CRG0603F33R (TE Connectivity Passive Product) specifies ±200ppm/°C temperature coefficient compared to ±100ppm/°C for all other parts. Select this part only when application design permits wider resistance variation across the operating temperature range.

For Product Status and Availability: CRCW060333R0FKEB (Vishay Dale) is discontinued at DiGi Electronics; avoid for new designs requiring long-term supply assurance. All other substitute parts maintain Active product status.

Frequently Asked Questions (FAQ)

Q: Can RC0603FR-0733RL (YAGEO) replace RC1608F330CS (Samsung) without design changes?

A: Yes. RC0603FR-0733RL maintains identical electrical specifications (33Ω ±1%, 0.1W), package format (0603), composition (thick film), operating temperature range (-55°C to 155°C), and RoHS3 compliance. No design modification is required for direct substitution.

Q: What is the difference between direct substitutes and automotive-qualified alternatives?

A: Direct substitutes (CR0603-FX-33R0ELF, RC0603FR-0733RL) provide equivalent performance for general-purpose applications. Automotive-qualified alternatives carry AEC-Q200 certification, indicating compliance with automotive industry reliability and environmental testing standards. Select automotive-qualified parts only when application requirements mandate AEC-Q200 qualification.

Q: Does the ±200ppm/°C temperature coefficient of CRG0603F33R affect substitution compatibility?

A: CRG0603F33R maintains identical resistance value, tolerance, power rating, and package format. The ±200ppm/°C temperature coefficient (versus ±100ppm/°C for RC1608F330CS) indicates wider resistance variation across the -55°C to 155°C operating range. Substitution is electrically valid only if application design tolerates this wider temperature coefficient specification.

Q: Are all substitute parts available in identical packaging formats?

A: All substitute parts use 0603 (1608 Metric) package format. Packaging type varies: CR0603-FX-33R0ELF and most YAGEO/Panasonic parts use Tape & Reel (TR); RC0603FR-0733RL uses Cut Tape (CT) & Digi-Reel®; CRCW060333R0FKEA uses Cut Tape (CT) & Digi-Reel®. Verify packaging compatibility with assembly equipment before procurement.

Q: Which substitute part is recommended for high-humidity or corrosive environments?

A: AF0603FR-0733RL (YAGEO) includes anti-sulfur protection in addition to automotive AEC-Q200 qualification, making it suitable for environments with sulfur contamination risk. AC0603FR-0733RL (YAGEO) provides moisture-resistant construction with AEC-Q200 qualification for standard humid environments.

Q: Should CRCW060333R0FKTA be used in new designs?

A: CRCW060333R0FKTA is RoHS non-compliant and REACH Affected. Use only when legacy design requirements or existing supply contracts mandate this specific part number. For new designs, select CRCW060333R0FKEA (RoHS3 compliant alternative from the same manufacturer).

Q: What is the significance of MSL 1 (Unlimited) rating?

A: MSL 1 (Unlimited) indicates the component requires no special moisture-sensitive device (MSD) handling procedures. Parts can be stored and handled under standard industrial conditions without desiccant packaging or time-limited shelf life restrictions.

Q: Are all substitute parts suitable for high-volume production?

A: ERJ-3EKF33R0V (Panasonic) shows the highest inventory level (388,591 pcs), indicating strong availability for high-volume production. CRCW060333R0FKEA (Vishay Dale) with 163,300 pcs and RC0603FR-0733RL (YAGEO) with 40,100 pcs also support high-volume requirements. Verify current inventory with suppliers before committing to production schedules.

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