RC1608F4R7CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F4R7CS is a 4.7 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 unlimited moisture sensitivity level (MSL 1). The part is ROHS3 compliant and REACH unaffected, making it suitable for industrial and commercial applications. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and compliance certifications to ensure direct interchangeability in circuit designs.

Substiute Parts

RC1608F4R7CS

Samsung Electro-MechanicsIn Stock: 1020RC1608F4R7CS Datasheet

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ERJ-3RQF4R7V

Panasonic Electronic ComponentsIn Stock: 78400ERJ-3RQF4R7V Datasheet

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KTR03EZPF4R70

Rohm SemiconductorIn Stock: 5968KTR03EZPF4R70 Datasheet

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RMCF0603FT4R70

Stackpole Electronics IncIn Stock: 157184RMCF0603FT4R70 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RC1608F4R7CS are qualified based on the following criteria:

Electrical Parameters (Critical for Substitution):

• Resistance value: 4.7 Ohms
• Tolerance: ±1%
• Power rating: 0.1W (1/10W)
• Composition: Thick Film
• Operating temperature range: -55°C to 155°C

Mechanical Parameters (Critical for Substitution):

• Package type: 0603 (1608 Metric)
• Number of terminations: 2
• Physical dimensions compatible with 0603 footprint

Compliance Parameters:

• RoHS3 compliance
• REACH unaffected status
• Moisture sensitivity level MSL 1

All identified substitute parts meet these core criteria. Variations in temperature coefficient (±200ppm/°C versus ±300ppm/°C) and additional features (automotive AEC-Q200 certification, current sense capability, high voltage rating) represent enhancements or specialized certifications that do not prevent substitution but may provide additional qualification for specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

All four parts—RC1608F4R7CS, ERJ-3RQF4R7V, KTR03EZPF4R70, and RMCF0603FT4R70—are functionally equivalent for applications requiring a 4.7 Ohm ±1% thick film resistor in 0603 package format. Selection among these parts should be based on the following factors:

For General Industrial Applications: The RC1608F4R7CS (Samsung) is suitable for standard applications where automotive certification is not required. Its moisture resistant characteristics and unlimited MSL rating provide reliability in standard operating environments.

For Automotive and High-Reliability Applications: The ERJ-3RQF4R7V (Panasonic), KTR03EZPF4R70 (Rohm), and RMCF0603FT4R70 (Stackpole) all carry AEC-Q200 automotive qualification, making them appropriate for automotive-grade circuit designs. These parts demonstrate enhanced reliability through automotive industry certification.

For Current Sensing Applications: The ERJ-3RQF4R7V (Panasonic) includes current sense capability as a specified feature, making it the preferred choice for circuits requiring precision current measurement or monitoring functions.

For High Voltage Applications: The KTR03EZPF4R70 (Rohm) includes high voltage rating as a specified feature, suitable for applications with elevated voltage stress requirements.

For Supply Chain Considerations: Inventory availability varies: RMCF0603FT4R70 (Stackpole) shows 157,078 units in stock, ERJ-3RQF4R7V (Panasonic) shows 78,354 units, KTR03EZPF4R70 (Rohm) shows 5,923 units, and RC1608F4R7CS (Samsung) shows 997 units. Packaging format differs: RMCF0603FT4R70 is available in Cut Tape and Digi-Reel format, while others are Tape & Reel format.

All parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory conformance across global markets.

Frequently Asked Questions (FAQ)

Q: Can ERJ-3RQF4R7V replace RC1608F4R7CS directly on the PCB?

A: Yes. Both parts share identical electrical specifications (4.7 Ohms ±1%, 0.1W), composition (thick film), package format (0603/1608 Metric), and operating temperature range (-55°C to 155°C). Physical dimensions are compatible with the same PCB footprint. The primary difference is that ERJ-3RQF4R7V includes AEC-Q200 automotive certification and current sense capability, which do not prevent direct substitution.

Q: What is the significance of the temperature coefficient difference (±300ppm/°C vs ±200ppm/°C)?

A: The RC1608F4R7CS has a temperature coefficient of ±300ppm/°C, while the substitute parts (Panasonic, Rohm, Stackpole) have ±200ppm/°C. This means the substitute parts exhibit slightly lower resistance drift over temperature variations. For most general applications, both specifications are acceptable. Applications requiring tighter temperature stability may benefit from the lower coefficient of the substitute parts.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. RC1608F4R7CS, ERJ-3RQF4R7V, KTR03EZPF4R70, and RMCF0603FT4R70 are all ROHS3 compliant and REACH unaffected, meeting environmental and regulatory requirements for commercial and industrial markets.

Q: What does AEC-Q200 certification mean?

A: AEC-Q200 is an automotive industry standard qualification for passive components. ERJ-3RQF4R7V, KTR03EZPF4R70, and RMCF0603FT4R70 carry this certification, indicating they have been tested and qualified for automotive applications. RC1608F4R7CS does not specify this certification. For automotive designs, AEC-Q200 qualified parts are preferred.

Q: Can I use RMCF0603FT4R70 in place of RC1608F4R7CS if my application requires Tape & Reel packaging?

A: RMCF0603FT4R70 is available in Cut Tape (CT) and Digi-Reel format, not standard Tape & Reel (TR). If your assembly process specifically requires standard Tape & Reel packaging, ERJ-3RQF4R7V or KTR03EZPF4R70 would be more appropriate choices, as both are available in TR format.

Q: Are the physical dimensions identical across all four parts?

A: Dimensions are functionally equivalent for PCB footprint purposes. RC1608F4R7CS, ERJ-3RQF4R7V, and KTR03EZPF4R70 are specified as 0.063" L x 0.031" W (1.60mm x 0.80mm). RMCF0603FT4R70 is specified as 0.061" L x 0.031" W (1.55mm x 0.80mm). The length difference of 0.002" (0.05mm) is within standard PCB footprint tolerance and does not prevent interchangeability. All parts have identical height (0.022" / 0.55mm maximum seated height).

Q: Which part should I select for maximum inventory availability?

A: RMCF0603FT4R70 (Stackpole) offers the highest inventory with 157,078 units in stock, followed by ERJ-3RQF4R7V (Panasonic) with 78,354 units. If supply chain continuity is a primary concern, these two parts provide the best availability.