RC1608F331CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F331CS is a 330 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 part is ROHS3 compliant and REACH unaffected, making it suitable for general industrial and consumer applications. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and environmental ratings to ensure direct functional interchangeability in circuit designs.

Key Parameters

Parameter	Specification
Resistance Value	330 Ohms
Tolerance	±1%
Power Rating	0.1W (1/10W)
Package / Case	0603 (1608 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C to 155°C
Number of Terminations	2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the RC1608F331CS are classified into three categories based on functional equivalence and application suitability:

Direct Equivalents maintain identical electrical and mechanical specifications with standard industrial-grade construction. These parts share the same 330 Ohm resistance, ±1% tolerance, 0.1W power rating, 0603 package dimensions, ±100ppm/°C temperature coefficient, and -55°C to 155°C operating range. Direct equivalents include CR0603-FX-3300ELF (Bourns Inc.), CRG0603F330R (TE Connectivity), and RC0603FR-07330RL (YAGEO).

Upgrade Equivalents provide enhanced performance characteristics while maintaining core electrical specifications. KTR03EZPF3300 (Rohm Semiconductor) adds Automotive AEC-Q200 qualification and high-voltage capability, suitable for automotive and harsh-environment applications requiring additional reliability assurance.

Similar Equivalents include automotive-grade variants with AEC-Q200 certification or enhanced environmental features. These parts (AC0603FR-07330RL, AF0603FR-07330RL, CRCW0603330RFKEA, CRCW0603330RFKEB, CRCW0603330RFKTA, ERJ-3EKF3300V) maintain identical core specifications but add automotive qualification, anti-sulfur protection, or moisture-resistant features suitable for demanding applications.

All substitute parts maintain the critical parameters: 330 Ohm resistance value, ±1% tolerance, 0.1W power rating, 0603 package format, ±100ppm/°C temperature coefficient, -55°C to 155°C operating temperature range, and 2 terminations.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp Range	Features	RoHS Status	Product Status
RC1608F331CS	Samsung Electro-Mechanics	330Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	Moisture Resistant	ROHS3	Active
CR0603-FX-3300ELF	Bourns Inc.	330Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	Moisture Resistant	ROHS3	Active
CRG0603F330R	TE Connectivity Passive Product	330Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	—	ROHS3	Active
RC0603FR-07330RL	YAGEO	330Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	Moisture Resistant	ROHS3	Active
KTR03EZPF3300	Rohm Semiconductor	330Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200, High Voltage	ROHS3	Active
AC0603FR-07330RL	YAGEO	330Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200, Moisture Resistant	ROHS3	Active
AF0603FR-07330RL	YAGEO	330Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	Anti-Sulfur, Automotive AEC-Q200	ROHS3	Active
CRCW0603330RFKEA	Vishay Dale	330Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200	ROHS3	Active
CRCW0603330RFKEB	Vishay Dale	330Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200	ROHS3	Discontinued at DiGi Electronics
CRCW0603330RFKTA	Vishay Dale	330Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200	RoHS non-compliant	Active
ERJ-3EKF3300V	Panasonic Electronic Components	330Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200	ROHS3	Active

Engineering Selection Recommendations

For Standard Industrial Applications: CR0603-FX-3300ELF (Bourns Inc.), CRG0603F330R (TE Connectivity), or RC0603FR-07330RL (YAGEO) provide direct functional equivalence to RC1608F331CS with ROHS3 compliance and active product status. These parts maintain identical electrical specifications and package dimensions without additional automotive qualification.

For Automotive and High-Reliability Applications: KTR03EZPF3300 (Rohm Semiconductor), AC0603FR-07330RL (YAGEO), AF0603FR-07330RL (YAGEO), CRCW0603330RFKEA (Vishay Dale), or ERJ-3EKF3300V (Panasonic Electronic Components) are qualified to Automotive AEC-Q200 standard. These parts maintain core electrical specifications while providing enhanced reliability assurance for automotive, industrial control, and harsh-environment applications.

For Corrosive Environment Applications: AF0603FR-07330RL (YAGEO) includes anti-sulfur protection in addition to AEC-Q200 automotive qualification, suitable for applications exposed to sulfurous atmospheres or corrosive conditions.

Compliance Considerations: All recommended substitutes maintain ROHS3 compliance except CRCW0603330RFKTA (RoHS non-compliant). CRCW0603330RFKEB is discontinued at DiGi Electronics and should not be selected for new designs. All active-status parts maintain REACH unaffected status.

Frequently Asked Questions (FAQ)

Q: Can RC0603FR-07330RL replace RC1608F331CS directly in circuit design?

A: Yes. RC0603FR-07330RL (YAGEO) maintains identical electrical specifications (330Ω ±1%, 0.1W), package format (0603), temperature coefficient (±100ppm/°C), operating range (-55°C to 155°C), and ROHS3 compliance. Both parts feature moisture-resistant thick film construction. Direct substitution is functionally equivalent.

Q: What is the difference between standard and automotive-grade 330 Ohm 0603 resistors?

A: Automotive-grade parts (AC0603FR-07330RL, AF0603FR-07330RL, CRCW0603330RFKEA, ERJ-3EKF3300V, KTR03EZPF3300) carry AEC-Q200 qualification, indicating compliance with automotive reliability and environmental stress testing standards. Standard industrial parts (CR0603-FX-3300ELF, CRG0603F330R, RC0603FR-07330RL) do not carry this certification. Electrical specifications remain identical; automotive grades provide additional qualification documentation for regulated applications.

Q: Are there dimensional differences between substitute parts?

A: Most substitute parts maintain standard 0603 package dimensions (0.063" L x 0.031" W / 1.60mm x 0.80mm) with 0.022" (0.55mm) maximum seated height. CRCW0603330RFKEA and CRCW0603330RFKEB variants show minor dimensional variations (0.061" L x 0.033" W / 1.55mm x 0.85mm, 0.020" max height). These variations remain within 0603 package tolerance and do not affect PCB footprint compatibility.

Q: Which substitute offers the highest inventory availability?

A: ERJ-3EKF3300V (Panasonic Electronic Components) shows 565,584 pieces in stock, the highest among all listed substitutes. CRG0603F330R (TE Connectivity) provides 937,816 pieces. Both maintain active product status and ROHS3 compliance.

Q: Is CRCW0603330RFKTA suitable for new designs?

A: CRCW0603330RFKTA is not recommended for new designs. This variant is RoHS non-compliant and REACH affected, failing to meet current regulatory requirements for most commercial and industrial applications. CRCW0603330RFKEA (ROHS3 compliant) is the preferred Vishay Dale alternative.

Q: What packaging options are available for 330 Ohm 0603 resistors?

A: Substitute parts are supplied in Tape & Reel (TR) or Cut Tape (CT) & Digi-Reel® formats. RC1608F331CS, CR0603-FX-3300ELF, KTR03EZPF3300, AF0603FR-07330RL, and CRCW0603330RFKEB use Tape & Reel packaging. RC0603FR-07330RL, AC0603FR-07330RL, CRCW0603330RFKEA, and ERJ-3EKF3300V use Cut Tape & Digi-Reel® packaging. Packaging selection depends on assembly process requirements and volume specifications.

Q: Can I use KTR03EZPF3300 in place of RC1608F331CS for non-automotive applications?

A: Yes. KTR03EZPF3300 maintains identical core electrical specifications (330Ω ±1%, 0.1W, 0603 package, ±100ppm/°C, -55°C to 155°C) and ROHS3 compliance. The additional automotive AEC-Q200 qualification and high-voltage features do not restrict use in standard industrial applications. This substitution provides enhanced reliability margin without functional impact.

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