RC1608F1821CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F1821CS is a 1.82 kOhms ±1% 0.1W thick film chip resistor manufactured by Samsung Electro-Mechanics in 0603 (1608 Metric) package format. This component is supplied in Cut Tape (CT) packaging with 1673 pieces currently in stock. The part maintains Active product status and is ROHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Equivalent and substitute parts are necessary when the primary part experiences supply constraints, when alternative packaging formats are required for manufacturing processes, or when design specifications permit selection from qualified alternative manufacturers meeting identical electrical and mechanical parameters.

Key Parameters

Parameter	Value
Resistance	1.82 kOhms
Tolerance	±1%
Power Rating	0.1W (1/10W)
Package / Case	0603 (1608 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C ~ 155°C
Terminations	2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the RC1608F1821CS is determined by strict equivalence across the following parameters: resistance value (1.82 kOhms), tolerance (±1%), power rating (0.1W), package format (0603 / 1608 Metric), composition (thick film), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C ~ 155°C).

Substitute parts are categorized into three groups based on functional equivalence and feature alignment:

Direct Equivalents maintain identical electrical specifications, moisture resistance features, and standard industrial compliance. These parts are interchangeable without design modification.

Upgrade Equivalents provide identical core electrical parameters but may have discontinued product status at certain distributors, requiring verification of continued availability.

Similar Parts with Enhanced Features meet all core electrical and mechanical requirements while adding automotive-grade AEC-Q200 qualification. These parts are suitable for applications requiring automotive-level reliability but are not required for standard industrial use.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power	Package	Temp Coeff	Op Temp Range	Packaging Type	Product Status	RoHS Status	Features
RC1608F1821CS	Samsung Electro-Mechanics	1.82 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Cut Tape (CT)	Active	ROHS3	Moisture Resistant
CR0603-FX-1821ELF	Bourns Inc.	1.82 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Tape & Reel (TR)	Active	ROHS3	Moisture Resistant
RC0603FR-071K82L	YAGEO	1.82 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Cut Tape (CT) & Digi-Reel®	Active	ROHS3	Moisture Resistant
MCR03ERTF1821	Rohm Semiconductor	1.82 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Cut Tape (CT) & Digi-Reel®	Discontinued at DiGi Electronics	ROHS3	Thick Film
AC0603FR-071K82L	YAGEO	1.82 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Tape & Reel (TR)	Active	ROHS3	Automotive AEC-Q200, Moisture Resistant
CRCW06031K82FKEA	Vishay Dale	1.82 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Tape & Reel (TR)	Active	ROHS3	Automotive AEC-Q200
CRCW06031K82FKEB	Vishay Dale	1.82 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Tape & Reel (TR)	Discontinued at DiGi Electronics	ROHS3	Automotive AEC-Q200
CRCW06031K82FKTA	Vishay Dale	1.82 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Tape & Reel (TR)	Active	RoHS non-compliant	Automotive AEC-Q200
ERJ-3EKF1821V	Panasonic Electronic Components	1.82 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Tape & Reel (TR)	Active	ROHS3	Automotive AEC-Q200
RMCF0603FT1K82	Stackpole Electronics Inc	1.82 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Tape & Reel (TR)	Active	ROHS3	Automotive AEC-Q200

Engineering Selection Recommendations

For Standard Industrial Applications with ROHS3 Compliance Requirement:

CR0603-FX-1821ELF (Bourns Inc.) and RC0603FR-071K82L (YAGEO) are direct functional equivalents to RC1608F1821CS. Both maintain identical electrical parameters, ROHS3 compliance status, and moisture resistance features. CR0603-FX-1821ELF is supplied in Tape & Reel format with 32,222 pieces in stock. RC0603FR-071K82L is available in Cut Tape & Digi-Reel® format with 203,880 pieces in stock, providing superior availability.

For Applications Requiring Automotive-Grade Qualification:

ERJ-3EKF1821V (Panasonic Electronic Components) and RMCF0603FT1K82 (Stackpole Electronics Inc) meet all core electrical specifications while providing AEC-Q200 automotive qualification. Both parts are ROHS3 compliant and maintain Active product status. RMCF0603FT1K82 offers the highest inventory availability at 128,737 pieces.

For Applications with Relaxed RoHS Compliance Requirements:

CRCW06031K82FKTA (Vishay Dale) provides AEC-Q200 automotive qualification but carries RoHS non-compliant status and REACH Affected designation. This part is suitable only for applications where RoHS3 compliance is not mandated.

Parts with Limited Availability:

MCR03ERTF1821 (Rohm Semiconductor) and CRCW06031K82FKEB (Vishay Dale) are discontinued at DiGi Electronics. These parts should not be selected for new designs requiring long-term supply assurance.

Frequently Asked Questions (FAQ)

Q: Can CR0603-FX-1821ELF replace RC1608F1821CS in existing designs?

A: Yes. Both parts share identical resistance (1.82 kOhms), tolerance (±1%), power rating (0.1W), package format (0603), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C ~ 155°C). The primary difference is packaging format: CR0603-FX-1821ELF is supplied in Tape & Reel while RC1608F1821CS is supplied in Cut Tape. Verify that your assembly process accommodates the packaging format change.

Q: What is the difference between standard and automotive-grade versions?

A: Automotive-grade versions (AC0603FR-071K82L, CRCW06031K82FKEA, CRCW06031K82FKEB, ERJ-3EKF1821V, RMCF0603FT1K82) carry AEC-Q200 qualification, indicating compliance with automotive reliability standards. Standard versions (RC1608F1821CS, CR0603-FX-1821ELF, RC0603FR-071K82L) do not carry this designation. Automotive-grade parts are suitable for automotive applications but are not required for standard industrial use.

Q: Is CRCW06031K82FKTA suitable for new designs?

A: CRCW06031K82FKTA carries RoHS non-compliant status and REACH Affected designation. This part should not be selected for new designs unless specific regulatory exemptions apply to your application.

Q: Which substitute part offers the best inventory availability?

A: RC0603FR-071K82L (YAGEO) provides the highest inventory availability at 203,880 pieces in stock. RMCF0603FT1K82 (Stackpole Electronics Inc) offers the second-highest availability at 128,737 pieces for applications requiring automotive-grade qualification.

Q: Are all substitute parts ROHS3 compliant?

A: No. CRCW06031K82FKTA is RoHS non-compliant. All other listed substitute parts maintain ROHS3 compliance status. Verify RoHS compliance requirements for your specific application before part selection.

Q: Can I use MCR03ERTF1821 for new production?

A: MCR03ERTF1821 is discontinued at DiGi Electronics. This part should not be selected for new designs or ongoing production requiring long-term supply assurance.

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