RC1005F512CS Equivalent & Substitute Parts Reference

Part Overview

The RC1005F512CS is a 5.1 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in 0402 (1005 Metric) package format. This surface mount device is rated for 0.063W (1/16W) power dissipation with moisture resistant characteristics and operates across the temperature range of -55°C to 155°C. The part maintains Active product status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and packaging compatibility to support component procurement flexibility and supply chain continuity.

Key Parameters

Parameter	Value
Resistance	5.1 kOhms
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 to 155°C
Dimensions	0.039" L x 0.020" W (1.00mm x 0.50mm)
Height - Seated (Max)	0.016" (0.40mm)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the RC1005F512CS is determined by strict equivalence across the following critical parameters: resistance value (5.1 kOhms), tolerance (±1%), power rating (0.063W minimum), package format (0402 / 1005 Metric), composition (thick film), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). All identified substitute parts maintain these core electrical and mechanical specifications. Substitute parts are categorized as Direct Equivalents (identical specifications and packaging format), Upgrade Equivalents (higher power rating or enhanced certifications), and Similar Equivalents (additional features such as automotive qualification or anti-sulfur treatment). Packaging format variations (Tape & Reel versus Cut Tape) do not affect electrical or mechanical compatibility and represent procurement format differences only.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (Watts)	Package	Composition	Temp Coeff	Operating Temp	Height Max	RoHS Status	MSL	Packaging Type
RC1005F512CS	Samsung Electro-Mechanics	5.1 kOhms	±1%	0.063W	0402	Thick Film	±100ppm/°C	-55°C ~ 155°C	0.016"	ROHS3	1	Tape & Reel
CR0402-FX-5101GLF	Bourns Inc.	5.1 kOhms	±1%	0.063W	0402	Thick Film	±100ppm/°C	-55°C ~ 155°C	0.016"	ROHS3	1	Cut Tape & Digi-Reel
CRG0402F5K1	TE Connectivity Passive Product	5.1 kOhms	±1%	0.063W	0402	Thick Film	±100ppm/°C	-55°C ~ 155°C	0.016"	ROHS3	1	Tape & Reel
RC0402FR-075K1L	YAGEO	5.1 kOhms	±1%	0.063W	0402	Thick Film	±100ppm/°C	-55°C ~ 155°C	0.016"	ROHS3	1	Cut Tape & Digi-Reel
ERJ-2RKF5101X	Panasonic Electronic Components	5.1 kOhms	±1%	0.1W	0402	Thick Film	±100ppm/°C	-55°C ~ 155°C	0.016"	ROHS3	1	Cut Tape & Digi-Reel
AC0402FR-075K1L	YAGEO	5.1 kOhms	±1%	0.063W	0402	Thick Film	±100ppm/°C	-55°C ~ 155°C	0.015"	ROHS3	1	Tape & Reel
AF0402FR-075K1L	YAGEO	5.1 kOhms	±1%	0.063W	0402	Thick Film	±100ppm/°C	-55°C ~ 155°C	0.015"	ROHS3	1	Tape & Reel
CRCW04025K10FKED	Vishay Dale	5.1 kOhms	±1%	0.063W	0402	Thick Film	±100ppm/°C	-55°C ~ 155°C	0.016"	ROHS3	1	Cut Tape & Digi-Reel
RMCF0402FT5K10	Stackpole Electronics Inc	5.1 kOhms	±1%	0.063W	0402	Thick Film	±100ppm/°C	-55°C ~ 155°C	0.016"	ROHS3	1	Cut Tape & Digi-Reel

Engineering Selection Recommendations

Direct Equivalents (Identical Specifications)

CR0402-FX-5101GLF (Bourns Inc.), CRG0402F5K1 (TE Connectivity Passive Product), and RC0402FR-075K1L (YAGEO) are direct electrical and mechanical equivalents to the RC1005F512CS. These parts maintain identical resistance, tolerance, power rating, package dimensions, and temperature specifications. All three are ROHS3 compliant with MSL 1 rating. Selection among these direct equivalents is based on packaging format preference (Tape & Reel or Cut Tape & Digi-Reel) and supplier availability.

Upgrade Equivalent (Enhanced Power Rating)

ERJ-2RKF5101X (Panasonic Electronic Components) provides an upgrade path with 0.1W (1/10W) power rating compared to the 0.063W specification of the main part. This higher power rating maintains full backward compatibility while providing additional thermal margin. The part includes Automotive AEC-Q200 certification and is suitable for applications requiring enhanced reliability or automotive-grade components. All other electrical and mechanical parameters remain equivalent.

Similar Equivalents (Enhanced Features)

AC0402FR-075K1L and AF0402FR-075K1L (both YAGEO) incorporate Automotive AEC-Q200 certification. AF0402FR-075K1L additionally includes anti-sulfur treatment. CRCW04025K10FKED (Vishay Dale) and RMCF0402FT5K10 (Stackpole Electronics Inc) also feature AEC-Q200 automotive qualification. These parts maintain identical core electrical specifications and are suitable for applications requiring automotive-grade reliability or corrosion resistance. Height specifications for YAGEO AC and AF series are 0.015" (0.37mm) compared to 0.016" (0.40mm) for the main part, representing a minor dimensional variation within acceptable PCB assembly tolerances.

All substitute parts maintain ROHS3 compliance, unlimited moisture sensitivity level (MSL 1), and the specified operating temperature range of -55°C to 155°C.

Frequently Asked Questions (FAQ)

Q: Can CR0402-FX-5101GLF replace RC1005F512CS in existing designs?

A: Yes. CR0402-FX-5101GLF is a direct electrical and mechanical equivalent. Both parts share identical resistance (5.1 kOhms), tolerance (±1%), power rating (0.063W), package format (0402), and operating temperature range (-55°C to 155°C). The only difference is packaging format (Cut Tape & Digi-Reel versus Tape & Reel), which does not affect circuit performance.

Q: What is the advantage of using ERJ-2RKF5101X over the main part?

A: ERJ-2RKF5101X provides a higher power rating of 0.1W (1/10W) compared to 0.063W for RC1005F512CS. This upgrade offers additional thermal headroom in power-dissipation-sensitive applications. ERJ-2RKF5101X also includes Automotive AEC-Q200 certification, making it suitable for automotive applications requiring enhanced reliability standards.

Q: Are YAGEO AC0402FR-075K1L and AF0402FR-075K1L interchangeable with RC1005F512CS?

A: Yes, both YAGEO parts are electrically and mechanically compatible. AC0402FR-075K1L adds Automotive AEC-Q200 certification and moisture resistance. AF0402FR-075K1L adds both AEC-Q200 certification and anti-sulfur treatment. The seated height for both is 0.015" (0.37mm) versus 0.016" (0.40mm) for the main part—a minor variation acceptable in standard PCB assembly processes.

Q: Does packaging format (Tape & Reel versus Cut Tape) affect circuit performance?

A: No. Packaging format differences represent procurement and handling variations only. Electrical and mechanical specifications remain identical. Selection between Tape & Reel and Cut Tape & Digi-Reel formats depends on assembly equipment compatibility and supplier availability.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All identified substitute parts maintain ROHS3 compliance and unlimited moisture sensitivity level (MSL 1), matching the environmental and regulatory status of RC1005F512CS.

Q: Can I use CRCW04025K10FKED or RMCF0402FT5K10 in non-automotive applications?

A: Yes. While both parts include Automotive AEC-Q200 certification, this represents an enhanced reliability standard that is fully backward compatible with non-automotive applications. These parts meet or exceed all specifications required for standard industrial and consumer electronics use.

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