RC1608F300CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F300CS is a 30 Ohm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.1W (1/10W) power dissipation in 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 REACH unaffected, suitable for general industrial and consumer applications requiring precision resistive elements in compact form factors.

Equivalent and substitute parts are identified based on matching electrical specifications (resistance value, tolerance, power rating), mechanical compatibility (package dimensions, termination count), environmental ratings (operating temperature range, temperature coefficient), and compliance certifications (RoHS, REACH, MSL).

Key Parameters

Parameter	Value	Unit
Resistance	30	Ohms
Tolerance	±1%	-
Power Rating	0.1 (1/10W)	Watts
Package / Case	0603 (1608 Metric)	-
Composition	Thick Film	-
Temperature Coefficient	±100	ppm/°C
Operating Temperature Range	-55 to 155	°C
Moisture Sensitivity Level	1 (Unlimited)	-
RoHS Status	ROHS3 Compliant	-
Number of Terminations	2	-

Substitute Part Grouping Explanation

Substitution eligibility for the RC1608F300CS is determined by strict equivalence across the following critical parameters:

Electrical Equivalence: Resistance value must be 30 Ohms with ±1% tolerance. Power rating must be 0.1W (1/10W). Temperature coefficient must be ±100ppm/°C. Operating temperature range must span -55°C to 155°C minimum.

Mechanical Compatibility: Package designation must be 0603 (1608 Metric). Physical dimensions must accommodate 0603 form factor (approximately 1.60mm L × 0.80mm W). Number of terminations must be 2.

Compliance & Environmental: All substitute parts must be ROHS3 compliant and REACH unaffected. Moisture Sensitivity Level must be 1 (Unlimited). Composition must be thick film construction.

Substitution Categories:

Direct substitutes share identical specifications with no additional features or certifications beyond the base requirements.

Upgrade substitutes include additional certifications (AEC-Q200 automotive qualification) or enhanced features (high voltage capability) while maintaining full backward compatibility with base electrical and mechanical specifications.

Similar substitutes meet all core electrical and mechanical requirements with minor dimensional variations within acceptable tolerances or include automotive AEC-Q200 qualification.

Parameter Comparison

Part Number	Manufacturer	Resistance (Ohms)	Tolerance	Power (W)	Package	Temp Coeff (ppm/°C)	Op Temp (°C)	Features	AEC-Q200	RoHS	MSL
RC1608F300CS	Samsung Electro-Mechanics	30	±1%	0.1	0603	±100	-55 to 155	Moisture Resistant	No	ROHS3	1
CR0603-FX-30R0ELF	Bourns Inc.	30	±1%	0.1	0603	±100	-55 to 155	Moisture Resistant	No	ROHS3	1
RC0603FR-0730RL	YAGEO	30	±1%	0.1	0603	±100	-55 to 155	Moisture Resistant	No	ROHS3	1
KTR03EZPF30R0	Rohm Semiconductor	30	±1%	0.1	0603	±100	-55 to 155	Automotive AEC-Q200, High Voltage	Yes	ROHS3	1
AC0603FR-0730RL	YAGEO	30	±1%	0.1	0603	±100	-55 to 155	Automotive AEC-Q200, Moisture Resistant	Yes	ROHS3	1
CRCW060330R0FKEA	Vishay Dale	30	±1%	0.1	0603	±100	-55 to 155	Automotive AEC-Q200	Yes	ROHS3	1
ERJ-3EKF30R0V	Panasonic Electronic Components	30	±1%	0.1	0603	±100	-55 to 155	Automotive AEC-Q200	Yes	ROHS3	1
RMCF0603FT30R0	Stackpole Electronics Inc	30	±1%	0.1	0603	±100	-55 to 155	Automotive AEC-Q200	Yes	ROHS3	1

Engineering Selection Recommendations

Direct Substitutes (Equivalent Specifications):

CR0603-FX-30R0ELF (Bourns Inc.) and RC0603FR-0730RL (YAGEO) are direct functional equivalents to RC1608F300CS. Both parts maintain identical electrical parameters, package dimensions, and compliance certifications. Selection between these options is based on supplier availability and inventory levels.

Upgrade Substitutes (Enhanced Certifications):

KTR03EZPF30R0 (Rohm Semiconductor), AC0603FR-0730RL (YAGEO), CRCW060330R0FKEA (Vishay Dale), ERJ-3EKF30R0V (Panasonic Electronic Components), and RMCF0603FT30R0 (Stackpole Electronics Inc) all include AEC-Q200 automotive qualification while maintaining full electrical and mechanical compatibility with the base RC1608F300CS specification. These parts are suitable for applications requiring automotive-grade reliability without design modification.

Compliance Verification:

All listed substitute parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory compatibility with the original part. Moisture Sensitivity Level 1 (Unlimited) is consistent across all options, eliminating moisture handling constraints during assembly and storage.

Product Status:

All substitute parts carry Active product status, confirming ongoing manufacturer support and supply chain availability.

Frequently Asked Questions (FAQ)

Q: Can CR0603-FX-30R0ELF replace RC1608F300CS in existing designs without modification?

A: Yes. CR0603-FX-30R0ELF is a direct substitute with identical electrical specifications (30 Ohms ±1%, 0.1W), package designation (0603), temperature range (-55°C to 155°C), and compliance certifications (ROHS3, MSL 1). No circuit design changes are required.

Q: What is the difference between the base RC1608F300CS and AEC-Q200 qualified alternatives?

A: AEC-Q200 qualified parts (KTR03EZPF30R0, AC0603FR-0730RL, CRCW060330R0FKEA, ERJ-3EKF30R0V, RMCF0603FT30R0) include automotive-grade reliability testing and qualification. All electrical and mechanical parameters remain identical. AEC-Q200 qualification is an additional feature, not a modification to base specifications.

Q: Are there dimensional differences between substitute parts?

A: Substitute parts conform to 0603 (1608 Metric) package standard. Minor dimensional variations exist within tolerance: most parts measure 1.60mm L × 0.80mm W with 0.55mm maximum seated height. CRCW060330R0FKEA and RMCF0603FT30R0 show slight variations (1.55mm L, 0.85mm W for CRCW; 1.55mm L for RMCF) and 0.50mm/0.55mm seated heights respectively. These variations remain within 0603 package acceptance criteria and do not affect PCB footprint compatibility.

Q: Which substitute part offers the highest inventory availability?

A: AC0603FR-0730RL (YAGEO) maintains the highest inventory level at 193,934 pieces. RC0603FR-0730RL (YAGEO) provides 90,400 pieces. Both options ensure supply chain continuity for high-volume applications.

Q: Is moisture sensitivity a concern when selecting substitutes?

A: No. All listed parts, including the base RC1608F300CS, carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity constraints. Standard PCB assembly processes and storage conditions are acceptable without special handling requirements.

Q: Can AEC-Q200 qualified parts be used in non-automotive applications?

A: Yes. AEC-Q200 qualification represents enhanced reliability testing and is fully backward compatible. Automotive-qualified parts function identically to non-qualified equivalents in standard industrial and consumer applications. Selection of AEC-Q200 parts is optional and based on application requirements, not mandatory for non-automotive use.

Q: What compliance certifications apply to all substitute options?

A: All parts listed maintain ROHS3 compliance and REACH unaffected status. These certifications are consistent across direct substitutes and upgrade options, ensuring regulatory compatibility across all alternatives.

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