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RC1608F560CS Equivalent & Substitute Parts Reference
Part Overview
The RC1608F560CS is a 56 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 construction and unlimited moisture sensitivity level (MSL 1). The part is ROHS3 compliant and suitable for general industrial and consumer applications operating across -55°C to 155°C temperature range.
Equivalent and substitute parts are necessary when the primary manufacturer part becomes unavailable, when alternative sourcing improves supply chain resilience, or when design requirements necessitate components with enhanced specifications such as automotive-grade certifications or improved temperature coefficients.
Substiute Parts
Key Parameters
| Parameter | Value | Specification Basis |
|---|---|---|
| Resistance | 56 Ohms | Critical - must match exactly |
| Tolerance | ±1% | Critical - defines accuracy class |
| Power Rating | 0.1W (1/10W) | Critical - thermal design requirement |
| Package / Case | 0603 (1608 Metric) | Critical - PCB footprint compatibility |
| Composition | Thick Film | Critical - electrical characteristics |
| Temperature Coefficient | ±100ppm/°C (standard) or ±200ppm/°C (upgrade) | Important - temperature stability |
| Operating Temperature Range | -55°C to 155°C | Critical - environmental limits |
| Moisture Resistance | MSL 1 (Unlimited) | Important - reliability in humid environments |
| RoHS Compliance | ROHS3 Compliant | Regulatory requirement |
Substitute Part Grouping Explanation
Substitute parts for the RC1608F560CS are classified into three categories based on electrical and mechanical compatibility:
Direct Equivalents (Interchangeable): Parts meeting all critical parameters including 56 Ohm resistance, ±1% tolerance, 0.1W power rating, 0603 package, thick film composition, ±100ppm/°C temperature coefficient, and MSL 1 moisture sensitivity. These parts are functionally identical to the main part and require no design modifications.
Upgrade Substitutes (Enhanced Specifications): Parts that exceed the main part specifications while maintaining all critical parameters. The CRG0603F56R from TE Connectivity features a ±200ppm/°C temperature coefficient, providing superior temperature stability compared to the standard ±100ppm/°C specification.
Application-Specific Substitutes (Automotive-Grade): Parts certified to AEC-Q200 automotive standards while maintaining all critical electrical and mechanical parameters. These include CRCW060356R0FKEB, CRCW060356R0FKEA, AC0603FR-0756RL, ERJ-3EKF56R0V, and RMCF0603FT56R0. These parts are suitable for automotive and high-reliability applications requiring automotive qualification.
Substitution logic is based strictly on the following allowed parameters: resistance value, tolerance, power rating, package dimensions, composition type, temperature coefficient range, operating temperature limits, and regulatory compliance status.
Parameter Comparison
| Manufacturer | Part Number | Resistance | Tolerance | Power (W) | Package | Temp Coeff (ppm/°C) | Op Temp Range | Moisture Resist | AEC-Q200 | Product Status |
|---|---|---|---|---|---|---|---|---|---|---|
| Samsung Electro-Mechanics | RC1608F560CS | 56 Ω | ±1% | 0.1 | 0603 | ±100 | -55 to 155°C | Yes | No | Active |
| Bourns Inc. | CR0603-FX-56R0ELF | 56 Ω | ±1% | 0.1 | 0603 | ±100 | -55 to 155°C | Yes | No | Active |
| YAGEO | RC0603FR-0756RL | 56 Ω | ±1% | 0.1 | 0603 | ±100 | -55 to 155°C | Yes | No | Active |
| TE Connectivity Passive Product | CRG0603F56R | 56 Ω | ±1% | 0.1 | 0603 | ±200 | -55 to 155°C | No | No | Active |
| YAGEO | AC0603FR-0756RL | 56 Ω | ±1% | 0.1 | 0603 | ±100 | -55 to 155°C | Yes | Yes | Active |
| Vishay Dale | CRCW060356R0FKEA | 56 Ω | ±1% | 0.1 | 0603 | ±100 | -55 to 155°C | No | Yes | Active |
| Vishay Dale | CRCW060356R0FKEB | 56 Ω | ±1% | 0.1 | 0603 | ±100 | -55 to 155°C | No | Yes | Discontinued at DiGi Electronics |
| Panasonic Electronic Components | ERJ-3EKF56R0V | 56 Ω | ±1% | 0.1 | 0603 | ±100 | -55 to 155°C | No | Yes | Active |
| Stackpole Electronics Inc | RMCF0603FT56R0 | 56 Ω | ±1% | 0.1 | 0603 | ±100 | -55 to 155°C | No | Yes | Active |
Engineering Selection Recommendations
For General Industrial Applications: The CR0603-FX-56R0ELF (Bourns Inc.) and RC0603FR-0756RL (YAGEO) are direct equivalents to the RC1608F560CS. Both maintain identical electrical specifications, moisture resistance, and operating temperature range. YAGEO RC0603FR-0756RL offers the highest inventory availability at 348,359 pieces.
For Temperature-Sensitive Applications: The CRG0603F56R (TE Connectivity Passive Product) provides enhanced temperature stability with ±200ppm/°C coefficient compared to the standard ±100ppm/°C. This upgrade substitute is suitable for precision applications requiring tighter temperature compensation.
For Automotive and High-Reliability Applications: AC0603FR-0756RL (YAGEO), CRCW060356R0FKEA (Vishay Dale), ERJ-3EKF56R0V (Panasonic Electronic Components), and RMCF0603FT56R0 (Stackpole Electronics Inc) are all AEC-Q200 certified. These parts are required for automotive designs and applications demanding automotive-grade component qualification. Among these, ERJ-3EKF56R0V offers the highest inventory at 110,404 pieces.
Packaging Considerations: CRCW060356R0FKEA is supplied in Cut Tape (CT) & Digi-Reel® packaging, suitable for lower-volume applications. All other substitutes are supplied in Tape & Reel (TR) format, standard for high-volume manufacturing. CRCW060356R0FKEB is noted as discontinued at DiGi Electronics and should be avoided for new designs.
All substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring regulatory compliance and reliability in standard manufacturing environments.
Frequently Asked Questions (FAQ)
Q: Can I use any of these substitute parts as a direct replacement for RC1608F560CS without design changes?
A: Yes. CR0603-FX-56R0ELF, RC0603FR-0756RL, and CRG0603F56R are direct mechanical and electrical substitutes. All maintain the 0603 package footprint, 56 Ohm resistance, ±1% tolerance, and 0.1W power rating. No PCB layout modifications are required.
Q: What is the difference between the standard and automotive-grade substitutes?
A: Automotive-grade substitutes (AC0603FR-0756RL, CRCW060356R0FKEA, CRCW060356R0FKEB, ERJ-3EKF56R0V, RMCF0603FT56R0) carry AEC-Q200 certification, indicating qualification for automotive applications with enhanced reliability testing and traceability requirements. Standard substitutes (CR0603-FX-56R0ELF, RC0603FR-0756RL) do not carry this certification and are suitable for general industrial and consumer applications.
Q: Why does CRG0603F56R have a different temperature coefficient?
A: The CRG0603F56R features ±200ppm/°C temperature coefficient compared to the standard ±100ppm/°C. This represents a different resistor technology or manufacturing process that provides wider temperature stability margins. This is an upgrade specification suitable for applications requiring enhanced temperature compensation.
Q: Is CRCW060356R0FKEB still available for new designs?
A: CRCW060356R0FKEB is listed as discontinued at DiGi Electronics. For new designs, use CRCW060356R0FKEA, which is the active equivalent from Vishay Dale with identical electrical and mechanical specifications.
Q: What does MSL 1 (Unlimited) moisture sensitivity mean?
A: MSL 1 indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. This is the least restrictive moisture sensitivity level and simplifies supply chain management.
Q: Can I mix different substitute parts in the same production batch?
A: All listed substitutes maintain identical electrical specifications (56 Ω ±1%, 0.1W, 0603 package). Mixing different manufacturers in the same batch is electrically acceptable. However, for traceability and quality control purposes, maintaining consistent part sourcing within a production lot is recommended.
Q: Which substitute offers the best inventory availability?
A: RC0603FR-0756RL (YAGEO) offers the highest inventory at 348,359 pieces. For automotive applications, ERJ-3EKF56R0V (Panasonic) provides 110,404 pieces.
Q: Are all substitutes ROHS3 compliant?
A: Yes. All listed substitute parts maintain ROHS3 compliance, ensuring regulatory compliance with current environmental directives.
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