RC1005F300CS Equivalent & Substitute Parts

Part Overview

The RC1005F300CS is a 30 Ohm ±1% thick film chip resistor in 0402 (1005 Metric) package manufactured by Samsung Electro-Mechanics. This component is rated for 0.063W (1/16W) power dissipation with moisture-resistant construction and operates across -55°C to 155°C. The part is Active status and ROHS3 compliant. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design continuity when the primary part becomes unavailable or when design requirements necessitate alternative specifications such as higher power ratings or automotive-grade certifications.

Key Parameters

Parameter	Value
Resistance	30 Ohms
Tolerance	±1%
Power Rating	0.063W (1/16W)
Package / Case	0402 (1005 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C ~ 155°C
Moisture Sensitivity Level	1 (Unlimited)
RoHS Status	ROHS3 Compliant
Size / Dimension	0.039" L x 0.020" W (1.00mm x 0.50mm)
Height - Seated (Max)	0.016" (0.40mm)

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following critical parameters: resistance value (30 Ohms), tolerance (±1%), package type (0402 / 1005 Metric), composition (thick film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C ~ 155°C), and compliance certifications (ROHS3, REACH Unaffected, EAR99).

Substitute parts are categorized as follows:

Direct Equivalents: Parts meeting all electrical and mechanical specifications of the RC1005F300CS with identical power rating (0.063W / 1/16W) and packaging format (Cut Tape or Tape & Reel).

Upgrade Substitutes: Parts with identical resistance, tolerance, package, and temperature characteristics but with higher power rating (0.1W / 1/10W), providing enhanced thermal margin while maintaining full backward compatibility.

Similar Substitutes: Parts meeting all core electrical specifications and package requirements but with additional automotive-grade certifications (AEC-Q200) or enhanced features (moisture resistance), suitable for applications requiring higher reliability standards.

All substitute parts maintain MSL 1 (Unlimited) moisture sensitivity and full ROHS3 compliance.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (Watts)	Package	Temp Coeff	Op. Temp Range	Features	Packaging Type	RoHS Status
RC1005F300CS	Samsung Electro-Mechanics	30 Ohms	±1%	0.063W	0402	±100ppm/°C	-55°C ~ 155°C	Moisture Resistant	Cut Tape (CT)	ROHS3
CR0402-FX-30R0GLF	Bourns Inc.	30 Ohms	±1%	0.063W	0402	±100ppm/°C	-55°C ~ 155°C	—	Tape & Reel (TR)	ROHS3
RC0402FR-0730RL	YAGEO	30 Ohms	±1%	0.063W	0402	±100ppm/°C	-55°C ~ 155°C	Moisture Resistant	Cut Tape (CT) & Digi-Reel®	ROHS3
ERJ-2RKF30R0X	Panasonic Electronic Components	30 Ohms	±1%	0.1W	0402	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Tape & Reel (TR)	ROHS3
AC0402FR-0730RL	YAGEO	30 Ohms	±1%	0.063W	0402	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200, Moisture Resistant	Tape & Reel (TR)	ROHS3
CRCW040230R0FKED	Vishay Dale	30 Ohms	±1%	0.063W	0402	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Tape & Reel (TR)	ROHS3
RMCF0402FT30R0	Stackpole Electronics Inc	30 Ohms	±1%	0.063W	0402	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Tape & Reel (TR)	ROHS3

Engineering Selection Recommendations

Direct Equivalent Selection: CR0402-FX-30R0GLF (Bourns Inc.) and RC0402FR-0730RL (YAGEO) are direct functional equivalents to RC1005F300CS. Both maintain identical electrical specifications, package dimensions, and compliance certifications. Selection between these and the primary part depends on procurement availability and packaging format preference (Tape & Reel versus Cut Tape).

Upgrade Path: ERJ-2RKF30R0X (Panasonic Electronic Components) provides a higher power rating (0.1W versus 0.063W) while maintaining all other specifications. This part is suitable for applications where thermal margin improvement is beneficial. The automotive AEC-Q200 certification provides additional reliability assurance for demanding environments.

Automotive-Grade Alternatives: AC0402FR-0730RL (YAGEO), CRCW040230R0FKED (Vishay Dale), and RMCF0402FT30R0 (Stackpole Electronics Inc) incorporate AEC-Q200 automotive qualification. These parts are appropriate for automotive, industrial, or mission-critical applications requiring enhanced component reliability and traceability. All maintain the 0.063W power rating and full compatibility with the original specification.

Compliance Verification: All substitute parts are ROHS3 compliant, REACH unaffected, and classified as EAR99. All maintain MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard PCB assembly processes without special handling requirements.

Frequently Asked Questions (FAQ)

Q: Can ERJ-2RKF30R0X be used as a direct replacement for RC1005F300CS?

A: ERJ-2RKF30R0X is electrically and mechanically compatible with RC1005F300CS. The primary difference is the higher power rating (0.1W versus 0.063W). In applications where the original 0.063W rating is sufficient, the higher-rated part operates within safe margins and provides additional thermal headroom. Physical dimensions and package type (0402) are identical.

Q: What is the difference between Cut Tape and Tape & Reel packaging?

A: Cut Tape (CT) packaging provides individual component strips suitable for manual assembly or small-volume production. Tape & Reel (TR) packaging supplies components on continuous reels optimized for automated pick-and-place assembly equipment. Electrical and mechanical specifications are identical; packaging selection depends on assembly process requirements.

Q: Are automotive-grade parts (AEC-Q200) backward compatible with standard industrial applications?

A: Yes. Automotive-grade parts such as AC0402FR-0730RL, CRCW040230R0FKED, and RMCF0402FT30R0 meet or exceed all specifications of standard industrial-grade equivalents. AEC-Q200 certification indicates additional qualification testing and traceability. These parts are fully compatible with non-automotive applications and provide enhanced reliability.

Q: Does moisture resistance affect substitution compatibility?

A: Moisture resistance is a feature enhancement, not a substitution barrier. RC1005F300CS and RC0402FR-0730RL include moisture-resistant construction. CR0402-FX-30R0GLF does not specify this feature but maintains identical MSL 1 rating. All parts are suitable for standard PCB assembly processes without special moisture-control requirements.

Q: What is MSL 1 (Unlimited) moisture sensitivity?

A: MSL 1 (Unlimited) indicates the component requires no special moisture-control handling during storage or assembly. The part can be stored at standard ambient conditions without desiccant packaging or time-limited shelf life restrictions. All listed substitute parts carry this rating.

Q: Can I substitute parts with different packaging formats on the same PCB?

A: Yes. All listed parts use identical 0402 (1005 Metric) package dimensions and footprint. Substitution between Cut Tape and Tape & Reel formats does not affect PCB layout, soldering process, or electrical performance. Format selection is determined by assembly equipment and production volume requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed carry ROHS3 compliance certification and are REACH unaffected. No hazardous substances restricted under ROHS3 or REACH regulations are present in any listed component.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message