RC1005F4423CS 442kΩ ±1% 0402 Chip Resistor Equivalent & Substitute Parts

Part Overview

The RC1005F4423CS is a 442 kΩ ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in 0402 (1005 Metric) package format. This component is rated for 0.063W (1/16W) power dissipation with a temperature coefficient of ±100ppm/°C and operates across the -55°C to 155°C temperature range. The part is ROHS3 compliant, REACH unaffected, and features moisture resistance with MSL 1 (unlimited) rating. Currently in active production status with 826 pieces available in stock, this resistor serves as a standard passive component in general-purpose electronic applications. Equivalent and substitute parts are identified for design flexibility, supply chain continuity, and application-specific requirements such as automotive qualification or enhanced power ratings.

Key Parameters

Parameter	Value	Unit
Resistance	442	kΩ
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
Moisture Sensitivity Level	1 (Unlimited)	—
RoHS Status	ROHS3 Compliant	—
Number of Terminations	2	—

Substitute Part Grouping Explanation

Substitution eligibility for the RC1005F4423CS is determined by strict equivalence across the following critical parameters: resistance value (442 kΩ), tolerance (±1%), package format (0402 / 1005 Metric), composition (thick film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and compliance certifications (ROHS3, REACH unaffected, MSL 1).

Substitute parts are grouped into three categories:

Direct Equivalent: RC0402FR-07442KL (YAGEO) matches all electrical and mechanical specifications of the main part, with identical power rating (0.063W), dimensions, and compliance profile. Packaging differs (Cut Tape & Digi-Reel versus Tape & Reel) but does not affect electrical performance.

Upgrade Substitute: ERJ-2RKF4423X (Panasonic Electronic Components) maintains all core electrical parameters but provides enhanced power rating (0.1W / 1/10W versus 0.063W / 1/16W) and automotive AEC-Q200 qualification. This part is suitable for applications requiring higher power dissipation margin or automotive-grade reliability.

Similar Substitutes: AC0402FR-07442KL (YAGEO), CRCW0402442KFKED (Vishay Dale), and RMCF0402FT442K (Stackpole Electronics Inc) maintain identical electrical specifications and package format while adding automotive AEC-Q200 qualification. These parts are functionally interchangeable with the main part for standard applications and provide automotive-grade assurance for designs requiring such certification.

Parameter Comparison

Parameter	RC1005F4423CS (Samsung)	RC0402FR-07442KL (YAGEO)	ERJ-2RKF4423X (Panasonic)	AC0402FR-07442KL (YAGEO)	CRCW0402442KFKED (Vishay Dale)	RMCF0402FT442K (Stackpole)
Resistance	442 kΩ	442 kΩ	442 kΩ	442 kΩ	442 kΩ	442 kΩ
Tolerance	±1%	±1%	±1%	±1%	±1%	±1%
Power Rating	0.063W (1/16W)	0.063W (1/16W)	0.1W (1/10W)	0.063W (1/16W)	0.063W (1/16W)	0.063W (1/16W)
Package / Case	0402 (1005 Metric)	0402 (1005 Metric)	0402 (1005 Metric)	0402 (1005 Metric)	0402 (1005 Metric)	0402 (1005 Metric)
Composition	Thick Film	Thick Film	Thick Film	Thick Film	Thick Film	Thick Film
Temperature Coefficient	±100ppm/°C	±100ppm/°C	±100ppm/°C	±100ppm/°C	±100ppm/°C	±100ppm/°C
Operating Temperature	-55 to 155°C	-55 to 155°C	-55 to 155°C	-55 to 155°C	-55 to 155°C	-55 to 155°C
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Automotive Qualification	—	—	AEC-Q200	AEC-Q200	AEC-Q200	AEC-Q200
Additional Features	Moisture Resistant	Moisture Resistant	Automotive AEC-Q200	Moisture Resistant, AEC-Q200	Automotive AEC-Q200	Automotive AEC-Q200

Engineering Selection Recommendations

For Direct Replacement: RC0402FR-07442KL (YAGEO) is the primary direct equivalent. All electrical parameters, thermal characteristics, and compliance certifications are identical to the RC1005F4423CS. This part is suitable for applications where packaging format (Cut Tape & Digi-Reel) is compatible with assembly processes. Stock availability is 2400 pieces.

For Automotive Applications or Enhanced Reliability: ERJ-2RKF4423X (Panasonic Electronic Components) is recommended when AEC-Q200 automotive qualification is required or when higher power dissipation margin (0.1W versus 0.063W) is beneficial for thermal management. This upgrade substitute maintains all core electrical specifications while providing automotive-grade assurance. Stock availability is 12311 pieces.

For Automotive-Grade Standard Applications: AC0402FR-07442KL (YAGEO), CRCW0402442KFKED (Vishay Dale), or RMCF0402FT442K (Stackpole Electronics Inc) are functionally equivalent alternatives with AEC-Q200 qualification. These parts are interchangeable with the main part for designs requiring automotive-grade components without enhanced power rating. Stock availability ranges from 20602 to 193623 pieces, providing robust supply chain options.

All substitute parts maintain ROHS3 compliance, REACH unaffected status, and MSL 1 (unlimited) moisture sensitivity rating. Selection should be based on application requirements, packaging compatibility, and supply chain availability.

Frequently Asked Questions (FAQ)

Q: Can RC0402FR-07442KL replace RC1005F4423CS in all applications?

A: Yes. RC0402FR-07442KL is a direct electrical and mechanical equivalent. The only difference is packaging format (Cut Tape & Digi-Reel versus Tape & Reel). Verify that your assembly process accommodates the packaging format before substitution.

Q: What is the difference between the main part and ERJ-2RKF4423X?

A: ERJ-2RKF4423X has a higher power rating (0.1W versus 0.063W) and includes AEC-Q200 automotive qualification. All other electrical parameters are identical. Use ERJ-2RKF4423X when automotive qualification or higher power dissipation capability is required.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts (RC0402FR-07442KL, ERJ-2RKF4423X, AC0402FR-07442KL, CRCW0402442KFKED, RMCF0402FT442K) are ROHS3 compliant and REACH unaffected, matching the compliance profile of the main part.

Q: What does AEC-Q200 qualification mean?

A: AEC-Q200 is an automotive industry standard qualification for passive components. Parts with this rating have undergone additional reliability testing and are approved for use in automotive applications. If your application does not require automotive qualification, standard parts without AEC-Q200 are functionally equivalent.

Q: Can I use a higher power-rated resistor (0.1W) in place of a 0.063W resistor?

A: Yes. A higher power-rated component is electrically compatible and will operate safely in circuits designed for lower power ratings. The 0.1W rating provides additional thermal margin but does not change electrical performance.

Q: Are there any dimensional differences between substitute parts?

A: All parts use the 0402 (1005 Metric) package format with identical length (0.039" / 1.00mm) and width (0.020" / 0.50mm). Height-seated maximum varies slightly (0.015" to 0.016" / 0.37mm to 0.40mm) but is within standard PCB assembly tolerances and does not affect functionality.

Q: Which substitute part has the highest stock availability?

A: RMCF0402FT442K (Stackpole Electronics Inc) has the highest inventory at 193623 pieces, followed by CRCW0402442KFKED (Vishay Dale) at 28071 pieces and AC0402FR-07442KL (YAGEO) at 20602 pieces.

Q: Do all substitute parts have MSL 1 (unlimited) moisture sensitivity rating?

A: Yes. All substitute parts maintain MSL 1 (unlimited) rating, indicating no moisture sensitivity restrictions for storage or handling.

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