RC1608F5R1CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F5R1CS is a 5.1 Ohm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.1W (1/10W) power dissipation in a 0603 (1608 Metric) surface mount package. This component is classified as Active product status with moisture resistant characteristics and ROHS3 compliance. Equivalent and substitute parts are identified when identical electrical specifications, mechanical dimensions, and package compatibility are maintained across alternative manufacturers while meeting the same environmental and regulatory requirements.

Substiute Parts

RC1608F5R1CS

Samsung Electro-MechanicsIn Stock: 992RC1608F5R1CS Datasheet

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KTR03EZPF5R10

Rohm SemiconductorIn Stock: 18524KTR03EZPF5R10 Datasheet

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RMCF0603FT5R10

Stackpole Electronics IncIn Stock: 55431RMCF0603FT5R10 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC1608F5R1CS is determined by strict equivalence across the following parameters: resistance value (5.1 Ohms), tolerance (±1%), power rating (0.1W), package type (0603/1608 Metric), composition (thick film), operating temperature range (-55°C ~ 155°C), and regulatory compliance (ROHS3, REACH Unaffected, EAR99). Substitute parts must maintain identical electrical performance and mechanical compatibility. The identified substitutes—KTR03EZPF5R10 (Rohm Semiconductor) and RMCF0603FT5R10 (Stackpole Electronics Inc)—meet all core electrical and mechanical requirements. Both substitutes are classified as Active product status and maintain full compatibility with the original part's specifications and environmental ratings.

Parameter Comparison

Engineering Selection Recommendations

All three parts—RC1608F5R1CS, KTR03EZPF5R10, and RMCF0603FT5R10—are Active product status components with full ROHS3 compliance and REACH Unaffected designation. The KTR03EZPF5R10 and RMCF0603FT5R10 substitutes feature AEC-Q200 automotive qualification ratings, which provide additional reliability assurance for applications requiring automotive-grade components. The temperature coefficient specification differs between the original part (±300ppm/°C) and both substitutes (±200ppm/°C), with the substitutes offering superior temperature stability. Physical dimensions are equivalent across all three parts with negligible variation (RMCF0603FT5R10 length 1.55mm versus 1.60mm for the other two), maintaining full PCB layout compatibility. Selection between these parts is determined by application requirements, inventory availability, and any specific automotive qualification mandates.

Frequently Asked Questions (FAQ)

Q: Can KTR03EZPF5R10 and RMCF0603FT5R10 be used interchangeably with RC1608F5R1CS?

A: Yes. All three parts share identical electrical specifications (5.1 Ohms ±1%, 0.1W), package type (0603/1608 Metric), operating temperature range (-55°C ~ 155°C), and regulatory compliance (ROHS3, REACH Unaffected). Physical dimensions are compatible for standard PCB layouts.

Q: What is the difference in temperature coefficient between these parts?

A: The RC1608F5R1CS has a temperature coefficient of ±300ppm/°C, while both KTR03EZPF5R10 and RMCF0603FT5R10 specify ±200ppm/°C. The substitute parts offer improved temperature stability across the operating range.

Q: Are the substitute parts suitable for automotive applications?

A: Both KTR03EZPF5R10 and RMCF0603FT5R10 carry AEC-Q200 automotive qualification ratings. The RC1608F5R1CS does not list this certification. Selection depends on whether automotive-grade components are required for the application.

Q: What is the significance of MSL 1 (Unlimited) rating?

A: MSL 1 (Unlimited) indicates that all three parts have no moisture sensitivity limitations and do not require special moisture control during storage, handling, or assembly processes.

Q: Are there dimensional compatibility concerns with the RMCF0603FT5R10?

A: The RMCF0603FT5R10 has a length of 1.55mm compared to 1.60mm for the other two parts. This 0.05mm difference is within standard PCB design tolerances and does not affect placement or functionality in typical 0603 footprints.