RC1608F180CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F180CS is a 0603 (1608 Metric) thick film chip resistor manufactured by Samsung Electro-Mechanics. This component provides 18 Ohms resistance with ±1% tolerance and 0.1W power rating in a moisture-resistant configuration. The part is currently active in production with 749 pieces available in inventory.

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when alternative packaging formats are required, or when design specifications permit selection from multiple qualified manufacturers. This reference provides direct substitutes with identical electrical and mechanical parameters, as well as similar alternatives with enhanced automotive qualification.

Substiute Parts

RC1608F180CS

Samsung Electro-MechanicsIn Stock: 772RC1608F180CS Datasheet

Current PartRFQ

CR0603-FX-18R0ELF

Bourns Inc.In Stock: 59186CR0603-FX-18R0ELF Datasheet

DirectRFQ

RC0603FR-0718RL

YAGEOIn Stock: 4261RC0603FR-0718RL Datasheet

DirectRFQ

MCR03ERTF18R0

Rohm SemiconductorIn Stock: 1121MCR03ERTF18R0 Datasheet

UpgradeRFQ

AC0603FR-0718RL

YAGEOIn Stock: 6241AC0603FR-0718RL Datasheet

SimilarRFQ

CRCW060318R0FKEA

Vishay DaleIn Stock: 60723CRCW060318R0FKEA Datasheet

SimilarRFQ

ERJ-3EKF18R0V

Panasonic Electronic ComponentsIn Stock: 47859ERJ-3EKF18R0V Datasheet

SimilarRFQ

RMCF0603FT18R0

Stackpole Electronics IncIn Stock: 61485RMCF0603FT18R0 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC1608F180CS is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 18 Ohms
• Tolerance: ±1%
• Power rating: 0.1W (1/10W)
• Package: 0603 (1608 Metric)
• Composition: Thick Film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C to 155°C
• Termination count: 2
• RoHS compliance: ROHS3 Compliant
• MSL rating: 1 (Unlimited)

Substitute Categories:

Direct Substitutes maintain all electrical and mechanical specifications with identical or compatible packaging formats:

• CR0603-FX-18R0ELF (Bourns Inc.)
• RC0603FR-0718RL (YAGEO)

Upgrade Substitutes provide equivalent core specifications but are discontinued at primary distributors:

• MCR03ERTF18R0 (Rohm Semiconductor)

Similar Substitutes meet all core electrical and mechanical requirements while adding automotive AEC-Q200 qualification:

• AC0603FR-0718RL (YAGEO)
• CRCW060318R0FKEA (Vishay Dale)
• ERJ-3EKF18R0V (Panasonic Electronic Components)
• RMCF0603FT18R0 (Stackpole Electronics Inc)

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Non-Automotive Applications):

CR0603-FX-18R0ELF (Bourns Inc.) and RC0603FR-0718RL (YAGEO) are direct functional equivalents to the RC1608F180CS. Both parts maintain identical electrical specifications, temperature performance, and compliance certifications. CR0603-FX-18R0ELF offers the highest inventory availability at 59,087 pieces. RC0603FR-0718RL is available in alternative packaging format (Cut Tape & Digi-Reel) with 4,200 pieces in stock.

For Automotive Applications:

When AEC-Q200 automotive qualification is required, four alternatives are available:

• AC0603FR-0718RL (YAGEO) with 6,184 pieces in stock
• CRCW060318R0FKEA (Vishay Dale) with 60,697 pieces in stock
• ERJ-3EKF18R0V (Panasonic Electronic Components) with 47,766 pieces in stock
• RMCF0603FT18R0 (Stackpole Electronics Inc) with 61,453 pieces in stock

All four automotive-qualified alternatives maintain identical core electrical parameters and operating temperature range while adding AEC-Q200 certification. CRCW060318R0FKEA and RMCF0603FT18R0 provide the highest inventory levels.

For Discontinued Part Replacement:

MCR03ERTF18R0 (Rohm Semiconductor) is discontinued at primary distributors but remains functionally equivalent with 1,109 pieces currently available. This part should be selected only when existing inventory must be maintained or when alternative sources are unavailable.

Packaging Considerations:

The RC1608F180CS is supplied in Tape & Reel format. CR0603-FX-18R0ELF and all automotive-qualified alternatives maintain this packaging format. RC0603FR-0718RL uses Cut Tape & Digi-Reel packaging, suitable for applications where reel quantities are not required.

Frequently Asked Questions (FAQ)

Q: Can CR0603-FX-18R0ELF be used as a direct replacement for RC1608F180CS?

A: Yes. CR0603-FX-18R0ELF meets all electrical and mechanical specifications of the RC1608F180CS, including 18 Ohms resistance, ±1% tolerance, 0.1W power rating, 0603 package, ±100ppm/°C temperature coefficient, -55°C to 155°C operating range, MSL 1 rating, and ROHS3 compliance. Both are supplied in Tape & Reel packaging.

Q: What is the difference between the RC1608F180CS and the automotive-qualified alternatives?

A: The RC1608F180CS does not carry AEC-Q200 automotive qualification. AC0603FR-0718RL, CRCW060318R0FKEA, ERJ-3EKF18R0V, and RMCF0603FT18R0 all include AEC-Q200 certification while maintaining identical core electrical specifications. AEC-Q200 qualification indicates compliance with automotive reliability and quality standards. Selection of automotive-qualified parts is required for automotive applications; non-automotive applications may use either qualified or non-qualified alternatives.

Q: Is RC0603FR-0718RL compatible with the RC1608F180CS in terms of electrical performance?

A: Yes. RC0603FR-0718RL provides identical electrical performance with 18 Ohms resistance, ±1% tolerance, 0.1W power rating, and ±100ppm/°C temperature coefficient across the -55°C to 155°C operating range. The primary difference is packaging format: RC0603FR-0718RL is supplied in Cut Tape & Digi-Reel format rather than Tape & Reel.

Q: Why is MCR03ERTF18R0 marked as discontinued?

A: MCR03ERTF18R0 is discontinued at DiGi Electronics, the primary distributor reference. However, 1,109 pieces remain in current inventory. This part maintains full electrical and mechanical equivalence to the RC1608F180CS. Selection should be based on application requirements and inventory availability at your supply chain.

Q: Can I substitute an AEC-Q200 qualified part for a non-qualified application?

A: Yes. AEC-Q200 qualified parts such as AC0603FR-0718RL, CRCW060318R0FKEA, ERJ-3EKF18R0V, and RMCF0603FT18R0 meet or exceed the electrical and reliability specifications of non-qualified parts. These alternatives are suitable for any application where the RC1608F180CS is specified, including non-automotive designs.

Q: What are the physical dimension differences between substitute parts?

A: The RC1608F180CS, CR0603-FX-18R0ELF, RC0603FR-0718RL, AC0603FR-0718RL, and ERJ-3EKF18R0V all share identical dimensions: 0.063" L x 0.031" W (1.60mm x 0.80mm) with 0.022" (0.55mm) maximum seated height. CRCW060318R0FKEA has slightly different dimensions: 0.061" L x 0.033" W (1.55mm x 0.85mm) with 0.020" (0.50mm) maximum seated height. RMCF0603FT18R0 dimensions are 0.061" L x 0.031" W (1.55mm x 0.80mm) with 0.022" (0.55mm) maximum seated height. These minor dimensional variations remain within 0603 package tolerance and do not affect PCB footprint compatibility.

Q: Which substitute part offers the best inventory availability?

A: CRCW060318R0FKEA (Vishay Dale) and RMCF0603FT18R0 (Stackpole Electronics Inc) offer the highest inventory levels at 60,697 and 61,453 pieces respectively. CR0603-FX-18R0ELF (Bourns Inc.) provides 59,087 pieces. All three alternatives are active products with immediate availability.