RC1005F1651CS Equivalent & Substitute Parts Reference

Part Overview

The RC1005F1651CS is a 1.65 kOhms ±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 operating range of -55°C to 155°C. The part is ROHS3 compliant, moisture resistant, and carries MSL Level 1 (Unlimited) moisture sensitivity rating. As an active product with established supply availability, equivalent and substitute parts from alternative manufacturers are available for design flexibility, supply chain redundancy, and application-specific requirements such as automotive qualification or enhanced power ratings.

Key Parameters

Parameter	Value	Substitution Relevance
Resistance Value	1.65 kOhms	Critical - must match exactly
Tolerance	±1%	Critical - must match or be tighter
Power Rating	0.063W (1/16W)	Critical - substitute must meet or exceed
Package / Case	0402 (1005 Metric)	Critical - physical compatibility
Composition	Thick Film	Important - affects performance characteristics
Temperature Coefficient	±100ppm/°C	Important - stability requirement
Operating Temperature Range	-55°C to 155°C	Important - environmental compatibility
RoHS Status	ROHS3 Compliant	Regulatory - compliance requirement
Moisture Sensitivity Level	MSL 1 (Unlimited)	Important - handling and storage
Number of Terminations	2	Critical - circuit connectivity

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across electrical and mechanical parameters. All substitute parts listed maintain identical resistance value (1.65 kOhms), tolerance (±1%), package format (0402/1005 Metric), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). Power rating substitution follows the rule that substitute parts must equal or exceed the original 0.063W specification. Composition remains thick film across all alternatives. Substitutes are grouped by substitution type based on compliance certifications and packaging format, not by performance enhancement or feature additions.

Key Parameters Determining Substitution:

Resistance: 1.65 kOhms (exact match required)
Tolerance: ±1% (exact match required)
Package: 0402 (1005 Metric) (exact match required)
Power Rating: ≥0.063W (equal or higher acceptable)
Temperature Coefficient: ±100ppm/°C (exact match required)
Operating Temperature: -55°C to 155°C (exact match required)
Composition: Thick Film (exact match required)

Parameter Comparison

Parameter	RC1005F1651CS (Samsung)	RC0402FR-071K65L (YAGEO)	ERJ-2RKF1651X (Panasonic)	AC0402FR-071K65L (YAGEO)	CRCW04021K65FKED (Vishay)	CRCW04021K65FKTD (Vishay)	RMCF0402FT1K65 (Stackpole)
Resistance	1.65 kOhms	1.65 kOhms	1.65 kOhms	1.65 kOhms	1.65 kOhms	1.65 kOhms	1.65 kOhms
Tolerance	±1%	±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)	0.063W (1/16W)
Package / Case	0402 (1005 Metric)	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	Thick Film
Temperature Coefficient	±100ppm/°C	±100ppm/°C	±100ppm/°C	±100ppm/°C	±100ppm/°C	±100ppm/°C	±100ppm/°C
Operating Temperature	-55°C to 155°C	-55°C to 155°C	-55°C to 155°C	-55°C to 155°C	-55°C to 155°C	-55°C to 155°C	-55°C to 155°C
Moisture Sensitivity Level	MSL 1 (Unlimited)	MSL 1 (Unlimited)	MSL 1 (Unlimited)	MSL 1 (Unlimited)	MSL 1 (Unlimited)	MSL 1 (Unlimited)	MSL 1 (Unlimited)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Non-Compliant	ROHS3 Compliant
Automotive Rating	None	None	AEC-Q200	AEC-Q200	AEC-Q200	AEC-Q200	AEC-Q200
Packaging Format	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel®	Tape & Reel (TR)	Tape & Reel (TR)
Height - Seated (Max)	0.016" (0.40mm)	0.016" (0.40mm)	0.016" (0.40mm)	0.015" (0.37mm)	0.016" (0.40mm)	0.016" (0.40mm)	0.016" (0.40mm)

Engineering Selection Recommendations

Direct Equivalent (Preferred for Non-Automotive Applications): RC0402FR-071K65L (YAGEO) is the primary direct equivalent. This part maintains identical electrical specifications, package format, and ROHS3 compliance with the original RC1005F1651CS. Selection is appropriate for general industrial and consumer applications where automotive qualification is not required. Tape & Reel packaging matches the original specification.

Upgrade Option (Automotive Applications): ERJ-2RKF1651X (Panasonic Electronic Components) provides an upgrade path with enhanced power rating (0.1W vs. 0.063W) and AEC-Q200 automotive qualification. This part is suitable for automotive-grade designs or applications requiring higher thermal margin. All other electrical parameters remain equivalent to the original specification.

Automotive-Qualified Alternatives: AC0402FR-071K65L (YAGEO), CRCW04021K65FKED (Vishay Dale), CRCW04021K65FKTD (Vishay Dale), and RMCF0402FT1K65 (Stackpole Electronics Inc) all carry AEC-Q200 automotive qualification with identical electrical specifications to the original part. These are suitable for automotive applications or designs requiring automotive-grade component reliability.

Compliance Consideration: CRCW04021K65FKTD carries RoHS non-compliance status and REACH Affected designation. This part is not suitable for applications with mandatory ROHS3 compliance requirements. All other substitute parts maintain ROHS3 compliance and REACH Unaffected status consistent with the original specification.

Packaging Format Consideration: CRCW04021K65FKED is supplied in Cut Tape (CT) & Digi-Reel® format, differing from the standard Tape & Reel (TR) packaging of the original part. This alternative is suitable for applications where cut tape format is acceptable or preferred for manual assembly operations.

Frequently Asked Questions (FAQ)

Q: Can RC0402FR-071K65L (YAGEO) be used as a direct replacement for RC1005F1651CS (Samsung)?

A: Yes. RC0402FR-071K65L is a direct equivalent with identical resistance (1.65 kOhms), tolerance (±1%), power rating (0.063W), package format (0402), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and ROHS3 compliance. Electrical and mechanical compatibility is complete.

Q: What is the difference between the original RC1005F1651CS and ERJ-2RKF1651X (Panasonic)?

A: The primary difference is power rating and automotive qualification. ERJ-2RKF1651X has a higher power rating (0.1W vs. 0.063W) and carries AEC-Q200 automotive qualification. All other electrical parameters including resistance, tolerance, temperature coefficient, and operating temperature range are identical. The higher power rating provides additional thermal margin in the same package size.

Q: Are all substitute parts suitable for automotive applications?

A: No. Only ERJ-2RKF1651X (Panasonic), AC0402FR-071K65L (YAGEO), CRCW04021K65FKED (Vishay), CRCW04021K65FKTD (Vishay), and RMCF0402FT1K65 (Stackpole) carry AEC-Q200 automotive qualification. RC0402FR-071K65L (YAGEO) does not have automotive qualification and is suitable for general industrial and consumer applications only.

Q: Can CRCW04021K65FKTD be used in applications requiring ROHS3 compliance?

A: No. CRCW04021K65FKTD is RoHS non-compliant and REACH Affected. This part is not suitable for applications with mandatory ROHS3 compliance requirements. Use ROHS3-compliant alternatives such as RC0402FR-071K65L, ERJ-2RKF1651X, AC0402FR-071K65L, CRCW04021K65FKED, or RMCF0402FT1K65 instead.

Q: What is the difference between CRCW04021K65FKED and CRCW04021K65FKTD?

A: Both parts have identical electrical specifications and AEC-Q200 automotive qualification. The primary differences are packaging format and compliance status. CRCW04021K65FKED is supplied in Cut Tape (CT) & Digi-Reel® format with ROHS3 compliance. CRCW04021K65FKTD is supplied in Tape & Reel (TR) format but is RoHS non-compliant and REACH Affected.

Q: Does AC0402FR-071K65L have moisture-resistant properties like the original RC1005F1651CS?

A: Yes. AC0402FR-071K65L explicitly includes moisture-resistant features in addition to AEC-Q200 automotive qualification. Both parts maintain MSL Level 1 (Unlimited) moisture sensitivity rating and are suitable for applications requiring moisture resistance.

Q: Can substitute parts with higher power ratings be used in place of the original 0.063W specification?

A: Yes. Substitute parts with equal or higher power ratings are electrically compatible. ERJ-2RKF1651X with 0.1W rating can be used in applications designed for 0.063W components. The higher power rating provides additional thermal margin and does not affect circuit operation.

Q: Are all substitute parts available in Tape & Reel (TR) packaging?

A: No. CRCW04021K65FKED is supplied in Cut Tape (CT) & Digi-Reel® format. All other substitute parts including RC0402FR-071K65L, ERJ-2RKF1651X, AC0402FR-071K65L, CRCW04021K65FKTD, and RMCF0402FT1K65 are available in Tape & Reel (TR) packaging matching the original specification.

Q: What is the height difference between AC0402FR-071K65L and other substitute parts?

A: AC0402FR-071K65L has a maximum seated height of 0.015" (0.37mm), while most other substitute parts including the original RC1005F1651CS have a maximum seated height of 0.016" (0.40mm). This 0.001" (0.03mm) difference is within typical PCB assembly tolerances and does not affect compatibility for standard 0402 package applications.

Q: Which substitute part has the highest inventory availability?

A: RC0402FR-071K65L (YAGEO) has the highest inventory availability at 481,458 pieces in stock, followed by RMCF0402FT1K65 (Stackpole) at 112,635 pieces. The original RC1005F1651CS (Samsung) has 1,166 pieces in stock.

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