RC1608F1183CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F1183CS is a 118 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in 0603 (1608 Metric) package format with 0.1W power rating. This component is classified as Active product status with moisture-resistant construction and ROHS3 compliance. 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	Specification
Resistance Value	118 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
Moisture Sensitivity Level (MSL)	1 (Unlimited)
RoHS Status	ROHS3 Compliant
Number of Terminations	2

Substitute Part Grouping Explanation

Substitute parts for the RC1608F1183CS are qualified based on the following criteria:

Electrical Parameters (Mandatory Match):

Resistance: 118 kOhms
Tolerance: ±1%
Power Rating: 0.1W (1/10W)
Temperature Coefficient: ±100ppm/°C
Operating Temperature Range: -55°C ~ 155°C

Mechanical Parameters (Mandatory Match):

Package / Case: 0603 (1608 Metric)
Number of Terminations: 2
Composition: Thick Film

Compliance Parameters (Mandatory Match):

RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)
REACH Status: REACH Unaffected

Packaging Formats: Substitute parts are available in Cut Tape (CT), Tape & Reel (TR), and Digi-Reel® formats. Packaging format selection depends on assembly process requirements and does not affect electrical or mechanical compatibility.

Product Status Consideration: One substitute part (MCR03ERTF1183 from Rohm Semiconductor) is listed as Discontinued at DiGi Electronics but remains functionally equivalent. Additional substitutes include automotive-grade variants (AEC-Q200 rated) which exceed base specifications and are fully compatible.

Parameter Comparison

Manufacturer	Part Number	Resistance	Tolerance	Power	Package	Temp Coeff	Op. Temp	MSL	RoHS	Product Status	Packaging Type
Samsung Electro-Mechanics	RC1608F1183CS	118 kΩ	±1%	0.1W	0603	±100ppm/°C	-55~155°C	1	ROHS3	Active	Cut Tape (CT)
Bourns Inc.	CR0603-FX-1183ELF	118 kΩ	±1%	0.1W	0603	±100ppm/°C	-55~155°C	1	ROHS3	Active	Tape & Reel (TR)
YAGEO	RC0603FR-07118KL	118 kΩ	±1%	0.1W	0603	±100ppm/°C	-55~155°C	1	ROHS3	Active	Cut Tape (CT) & Digi-Reel®
Rohm Semiconductor	MCR03ERTF1183	118 kΩ	±1%	0.1W	0603	±100ppm/°C	-55~155°C	1	ROHS3	Discontinued at DiGi Electronics	Cut Tape (CT) & Digi-Reel®
YAGEO	AC0603FR-07118KL	118 kΩ	±1%	0.1W	0603	±100ppm/°C	-55~155°C	1	ROHS3	Active	Tape & Reel (TR)
Vishay Dale	CRCW0603118KFKEA	118 kΩ	±1%	0.1W	0603	±100ppm/°C	-55~155°C	1	ROHS3	Active	Tape & Reel (TR)
Panasonic Electronic Components	ERJ-3EKF1183V	118 kΩ	±1%	0.1W	0603	±100ppm/°C	-55~155°C	1	ROHS3	Active	Tape & Reel (TR)
Stackpole Electronics Inc	RMCF0603FT118K	118 kΩ	±1%	0.1W	0603	±100ppm/°C	-55~155°C	1	ROHS3	Active	Tape & Reel (TR)

Engineering Selection Recommendations

Primary Substitutes (Direct Equivalents): CR0603-FX-1183ELF (Bourns Inc.) and RC0603FR-07118KL (YAGEO) are direct functional equivalents with Active product status and identical electrical and mechanical specifications. Both are suitable for direct replacement in applications where the RC1608F1183CS is specified.

Automotive-Grade Alternatives: AC0603FR-07118KL (YAGEO), CRCW0603118KFKEA (Vishay Dale), ERJ-3EKF1183V (Panasonic), and RMCF0603FT118K (Stackpole Electronics Inc) are AEC-Q200 automotive-qualified variants. These components meet all base specifications and include additional automotive reliability certifications. Selection of automotive-grade parts is appropriate for applications requiring enhanced qualification or operating in automotive environments.

Discontinued Component: MCR03ERTF1183 (Rohm Semiconductor) is listed as Discontinued at DiGi Electronics but remains electrically and mechanically equivalent. This part should be selected only when existing inventory is available or when long-term supply is not a concern.

Packaging Considerations: All substitute parts maintain 0603 package compatibility. Selection between Cut Tape (CT), Tape & Reel (TR), and Digi-Reel® formats depends on assembly equipment and production volume requirements. Packaging format does not affect component performance or compatibility.

Compliance Status: All listed substitutes maintain ROHS3 compliance, MSL Level 1 (Unlimited), and REACH Unaffected status, ensuring regulatory compatibility with the original RC1608F1183CS specification.

Frequently Asked Questions (FAQ)

Q: Can I substitute the RC1608F1183CS with any of the listed equivalent parts without circuit redesign?

A: Yes. All listed substitute parts match the mandatory electrical parameters (118 kOhms ±1%, 0.1W power rating, ±100ppm/°C temperature coefficient, -55°C ~ 155°C operating range) and mechanical specifications (0603 package, 2 terminations, thick film composition). Direct substitution is supported without circuit modification.

Q: What is the difference between standard and automotive-grade (AEC-Q200) variants?

A: Automotive-grade variants (AC0603FR-07118KL, CRCW0603118KFKEA, ERJ-3EKF1183V, RMCF0603FT118K) include AEC-Q200 qualification, which certifies enhanced reliability testing and qualification for automotive applications. These parts exceed base specifications and are fully backward compatible with standard applications. Selection of automotive-grade parts is optional unless automotive qualification is required.

Q: Does packaging format (Cut Tape, Tape & Reel, Digi-Reel) affect electrical performance?

A: No. Packaging format affects only handling, storage, and assembly process compatibility. Electrical and mechanical performance is identical across all packaging formats for the same part number. Select packaging format based on assembly equipment and production volume requirements.

Q: Is MCR03ERTF1183 from Rohm Semiconductor still a valid substitute?

A: MCR03ERTF1183 is electrically and mechanically equivalent and meets all specified parameters. However, it is listed as Discontinued at DiGi Electronics. This part should be selected only when existing inventory is confirmed available or when supply continuity is not a concern. For new designs or long-term production, selection of Active-status alternatives is recommended.

Q: What compliance certifications apply to all substitute parts?

A: All listed substitute parts are ROHS3 Compliant, MSL Level 1 (Unlimited moisture sensitivity), and REACH Unaffected. These certifications ensure regulatory compatibility across all substitutes and the original RC1608F1183CS component.

Q: Can I mix different manufacturers' parts in the same assembly?

A: Yes. All substitute parts meet identical electrical, mechanical, and compliance specifications. Mixing manufacturers in the same assembly is supported from a technical compatibility standpoint. Manufacturing process control and quality assurance procedures should be applied consistently across all sourced components.

Q: What are the physical dimension tolerances for the 0603 package?

A: Standard 0603 package dimensions are 0.063" L x 0.031" W (1.60mm x 0.80mm) with maximum seated height of 0.022" (0.55mm). Minor dimensional variations exist across manufacturers (for example, CRCW0603118KFKEA is specified as 0.061" L x 0.033" W with 0.020" max height). These variations remain within 0603 package compatibility and do not affect PCB footprint or assembly compatibility.

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