RC1608F3R3CS Equivalent & Substitute Parts

Part Overview

The RC1608F3R3CS is a 3.3 Ohm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in the 0603 (1608 Metric) package format. This component is rated for 0.1W (1/10W) power dissipation and features moisture-resistant construction with an operating temperature range of -55°C to 155°C. The part maintains Active product status and is RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. Equivalent and substitute parts are identified to provide design flexibility, supply chain alternatives, and application-specific feature enhancements such as automotive qualification and enhanced electrical characteristics.

Substiute Parts

RC1608F3R3CS

Samsung Electro-MechanicsIn Stock: 854RC1608F3R3CS Datasheet

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ERJ-3RQF3R3V

Panasonic Electronic ComponentsIn Stock: 31489ERJ-3RQF3R3V Datasheet

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KTR03EZPF3R30

Rohm SemiconductorIn Stock: 46273KTR03EZPF3R30 Datasheet

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RMCF0603FT3R30

Stackpole Electronics IncIn Stock: 292523RMCF0603FT3R30 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the RC1608F3R3CS is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Criteria:

• Resistance value: 3.3 Ohms
• Tolerance: ±1%
• Power rating: 0.1W (1/10W)
• Package format: 0603 (1608 Metric)
• Composition: Thick Film
• Operating temperature range: -55°C to 155°C
• RoHS3 compliance
• MSL 1 rating

All substitute parts listed meet these core electrical and mechanical requirements. Substitute parts may include additional features such as automotive AEC-Q200 qualification and enhanced temperature coefficient performance, which represent functional enhancements rather than deviations from the base specification.

Parameter Comparison

Engineering Selection Recommendations

RC1608F3R3CS (Samsung Electro-Mechanics) Primary selection for general-purpose applications requiring moisture-resistant thick film construction. Active product status with established supply availability. Suitable for non-automotive applications where AEC-Q200 qualification is not required.

ERJ-3RQF3R3V (Panasonic Electronic Components) Qualified substitute with automotive AEC-Q200 certification and current sense feature designation. Improved temperature coefficient of ±200ppm/°C compared to the main part. Available in Cut Tape and Digi-Reel packaging. Appropriate for automotive and industrial applications requiring enhanced reliability standards.

KTR03EZPF3R30 (Rohm Semiconductor) Qualified substitute with automotive AEC-Q200 certification and high voltage feature designation. Temperature coefficient of ±200ppm/°C. Supplied in Tape & Reel packaging. Suitable for high-voltage automotive and industrial circuit applications.

RMCF0603FT3R30 (Stackpole Electronics Inc) Qualified substitute with automotive AEC-Q200 certification. Temperature coefficient of ±200ppm/°C. Highest inventory availability among substitute options. Supplied in Tape & Reel packaging. Appropriate for automotive applications and high-volume production requirements.

All substitute parts maintain electrical and mechanical compatibility with the RC1608F3R3CS across critical parameters including resistance, tolerance, power rating, package format, and operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can ERJ-3RQF3R3V be used as a direct replacement for RC1608F3R3CS? A: Yes. Both parts share identical resistance (3.3 Ohms), tolerance (±1%), power rating (0.1W), package format (0603), composition (thick film), operating temperature range (-55°C to 155°C), and compliance certifications (RoHS3, MSL 1). The ERJ-3RQF3R3V includes additional automotive AEC-Q200 qualification and current sense features, with an improved temperature coefficient of ±200ppm/°C.

Q: What is the difference between the packaging options offered by these substitutes? A: The RC1608F3R3CS and KTR03EZPF3R30 and RMCF0603FT3R30 are supplied in Tape & Reel (TR) format. The ERJ-3RQF3R3V is available in Cut Tape (CT) and Digi-Reel packaging. Packaging selection depends on production volume and assembly equipment compatibility. All packaging formats are suitable for automated pick-and-place assembly.

Q: Are all substitute parts RoHS3 compliant? A: Yes. The RC1608F3R3CS and all listed substitute parts (ERJ-3RQF3R3V, KTR03EZPF3R30, RMCF0603FT3R30) are RoHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings.

Q: What is the significance of the AEC-Q200 rating on substitute parts? A: AEC-Q200 is an automotive qualification standard. Substitute parts bearing this rating (ERJ-3RQF3R3V, KTR03EZPF3R30, RMCF0603FT3R30) are qualified for automotive applications and meet enhanced reliability and performance requirements. The main part RC1608F3R3CS does not specify AEC-Q200 qualification.

Q: Do the substitute parts have different physical dimensions? A: The RMCF0603FT3R30 has a length of 0.061" (1.55mm) compared to 0.063" (1.60mm) for the other parts. All parts maintain the same width (0.031" / 0.80mm) and maximum seated height (0.022" / 0.55mm). This minor dimensional variation is within standard 0603 package tolerances and does not affect PCB footprint compatibility.

Q: Which substitute part offers the best temperature stability? A: The ERJ-3RQF3R3V, KTR03EZPF3R30, and RMCF0603FT3R30 all feature a temperature coefficient of ±200ppm/°C, compared to ±300ppm/°C for the RC1608F3R3CS. This represents improved temperature stability across the -55°C to 155°C operating range.

Q: Can these parts be used interchangeably in existing designs? A: Yes. All substitute parts meet the core electrical specifications (3.3 Ohms ±1%, 0.1W, 0603 package) and environmental requirements (RoHS3, MSL 1, -55°C to 155°C). Interchangeability is confirmed across these critical parameters. Design validation should confirm that enhanced features (automotive qualification, improved temperature coefficient) do not introduce unintended circuit behavior.