RC1005F2430CS Equivalent & Substitute Parts

Part Overview

The RC1005F2430CS is a 243 Ohm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in 0402 (1005 Metric) package format. This surface mount device is rated at 0.063W (1/16W) power dissipation with moisture resistant construction and operates across the temperature range of -55°C to 155°C. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design optimization across multiple manufacturer sources while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value	Unit
Resistance	243	Ohms
Tolerance	±1%	-
Power Rating	0.063	W (1/16W)
Package / Case	0402 (1005 Metric)	-
Composition	Thick Film	-
Temperature Coefficient	±100	ppm/°C
Operating Temperature Range	-55 to 155	°C
Size / Dimension	1.00 x 0.50	mm (L x W)
Height - Seated (Max)	0.40	mm
Moisture Sensitivity Level	1 (Unlimited)	-
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitution eligibility for the RC1005F2430CS is determined by strict equivalence across the following critical parameters: resistance value (243 Ohms), tolerance (±1%), package format (0402 / 1005 Metric), composition (thick film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and moisture sensitivity level (MSL 1). All identified substitute parts maintain these core electrical and mechanical specifications. Substitute parts are grouped into three categories based on additional features and certifications:

Direct Equivalents: Parts with identical power rating (0.063W / 1/16W) and no additional automotive or specialized certifications.

Upgrade Substitutes: Parts with enhanced power rating (0.1W / 1/10W) or automotive AEC-Q200 qualification, suitable for applications requiring higher thermal margin or automotive-grade reliability.

Similar Substitutes: Parts with automotive AEC-Q200 certification or alternative moisture-resistant features, maintaining the 0.063W power rating while offering enhanced environmental or reliability specifications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance (Ohms)	Tolerance	Power (W)	Package	Temp Coeff (ppm/°C)	Op Temp Range (°C)	Features	RoHS Status	Inventory (Pcs)
RC1005F2430CS	Samsung Electro-Mechanics	243	±1%	0.063	0402	±100	-55 to 155	Moisture Resistant	ROHS3 Compliant	957
CR0402-FX-2430GLF	Bourns Inc.	243	±1%	0.063	0402	±100	-55 to 155	-	ROHS3 Compliant	20147
RC0402FR-07243RL	YAGEO	243	±1%	0.063	0402	±100	-55 to 155	Moisture Resistant	ROHS3 Compliant	502468
ERJ-2RKF2430X	Panasonic Electronic Components	243	±1%	0.1	0402	±100	-55 to 155	Automotive AEC-Q200	ROHS3 Compliant	5300
AC0402FR-07243RL	YAGEO	243	±1%	0.063	0402	±100	-55 to 155	Automotive AEC-Q200, Moisture Resistant	ROHS3 Compliant	11523
CRCW0402243RFKED	Vishay Dale	243	±1%	0.063	0402	±100	-55 to 155	Automotive AEC-Q200	ROHS3 Compliant	53910
CRCW0402243RFKTD	Vishay Dale	243	±1%	0.063	0402	±100	-55 to 155	Automotive AEC-Q200	RoHS Non-compliant	4662
RMCF0402FT243R	Stackpole Electronics Inc	243	±1%	0.063	0402	±100	-55 to 155	Automotive AEC-Q200	ROHS3 Compliant	94596

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): CR0402-FX-2430GLF (Bourns Inc.) and RC0402FR-07243RL (YAGEO) are direct functional equivalents to the RC1005F2430CS. Both maintain identical electrical parameters, package format, and power rating. RC0402FR-07243RL offers the advantage of moisture-resistant construction matching the original part and significantly higher inventory availability (502,468 units).

For Enhanced Thermal Performance: ERJ-2RKF2430X (Panasonic Electronic Components) provides an upgrade path with 0.1W power rating (versus 0.063W), offering increased thermal margin while maintaining all other electrical specifications. This part carries automotive AEC-Q200 qualification and ROHS3 compliance.

For Automotive Applications: AC0402FR-07243RL (YAGEO), CRCW0402243RFKED (Vishay Dale), and RMCF0402FT243R (Stackpole Electronics Inc) are qualified to automotive AEC-Q200 standard. AC0402FR-07243RL combines automotive qualification with moisture-resistant construction. CRCW0402243RFKED and RMCF0402FT243R offer high inventory availability (53,910 and 94,596 units respectively) with ROHS3 compliance.

Compliance Consideration: CRCW0402243RFKTD (Vishay Dale) is not ROHS3 compliant and is REACH affected; this part is not recommended for new designs or applications with RoHS compliance requirements.

Frequently Asked Questions (FAQ)

Q: Can CR0402-FX-2430GLF replace RC1005F2430CS in all applications? A: CR0402-FX-2430GLF is electrically and mechanically equivalent to RC1005F2430CS across all core parameters (resistance, tolerance, power rating, package, temperature range). The primary difference is the absence of moisture-resistant features in the Bourns part. For applications where moisture resistance is not specified, this substitution is valid.

Q: What is the difference between the RC1005F2430CS and ERJ-2RKF2430X? A: Both parts share identical resistance (243 Ohms), tolerance (±1%), package (0402), and temperature specifications. The ERJ-2RKF2430X has a higher power rating (0.1W versus 0.063W) and includes automotive AEC-Q200 qualification. This makes ERJ-2RKF2430X suitable for applications requiring higher power dissipation capability or automotive-grade reliability.

Q: Are all substitute parts available in the same packaging format? A: All identified substitute parts are supplied in Tape & Reel (TR) packaging in the 0402 (1005 Metric) package format, maintaining identical footprint and assembly compatibility with the RC1005F2430CS.

Q: Which substitute offers the best inventory availability? A: RC0402FR-07243RL (YAGEO) provides the highest inventory availability at 502,468 units. This part also maintains moisture-resistant construction and ROHS3 compliance, making it a strong alternative for high-volume procurement.

Q: Can I use CRCW0402243RFKTD as a substitute? A: CRCW0402243RFKTD is not recommended for new designs. This part is RoHS non-compliant and REACH affected, whereas the RC1005F2430CS is ROHS3 compliant. Use CRCW0402243RFKED instead, which maintains identical electrical specifications with full ROHS3 compliance.

Q: What is the significance of AEC-Q200 qualification in the substitute parts? A: AEC-Q200 is an automotive industry standard qualification for passive components. Parts carrying this certification (ERJ-2RKF2430X, AC0402FR-07243RL, CRCW0402243RFKED, RMCF0402FT243R) are suitable for automotive applications requiring enhanced reliability and environmental stress screening. Non-automotive applications do not require this certification.

Q: Are there dimensional differences between substitute parts? A: All substitute parts maintain the same 0402 (1005 Metric) package format with dimensions of 1.00mm x 0.50mm (L x W). Maximum seated height is 0.40mm for most parts, with AC0402FR-07243RL at 0.37mm maximum. These minor height variations are within standard PCB assembly tolerances.

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