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Z0603C560CSMST Ferrite Bead 56 Ohm 0603 Equivalent & Substitute Parts
Part Overview
The Z0603C560CSMST is a single-line signal ferrite bead manufactured by KEMET in the 0603 (1608 Metric) surface mount package. This component provides 56 Ohms of impedance at 100 MHz with a maximum current rating of 400mA and DC resistance of 300mOhm. The part operates across the temperature range of -55°C to 125°C and is RoHS3 compliant with MSL 1 rating.
The Z0603C560CSMST is classified as obsolete. Equivalent and substitute ferrite beads from active manufacturers are available to fulfill the same functional requirements in signal line filtering applications. Substitutes are selected based on matching or exceeding the electrical and mechanical parameters of the original component.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Impedance @ Frequency | 56 Ohms @ 100 MHz |
| Current Rating (Max) | 400mA |
| DC Resistance (DCR) (Max) | 300mOhm |
| Package / Case | 0603 (1608 Metric) |
| Mounting Type | Surface Mount |
| Operating Temperature | -55°C ~ 125°C |
| Filter Type | Signal Line |
| Number of Lines | 1 |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Ferrite bead substitution is determined by the following critical parameters:
Mechanical Compatibility:
- Package type: 0603 (1608 Metric) surface mount
- Physical dimensions and height must match or be compatible with PCB layout constraints
- Mounting type: Surface mount
Electrical Compatibility:
- Impedance value at 100 MHz: The original part specifies 56 Ohms. Substitute parts with impedance values of 47 Ohms, 50 Ohms, 60 Ohms, or higher are functionally equivalent for signal line filtering applications, as these values fall within the standard ferrite bead impedance range for 0603 packages
- Current rating: Substitute parts must meet or exceed the 400mA maximum current requirement
- DC resistance: Substitute parts with DCR values at or below 300mOhm maintain signal integrity
- Operating temperature range: All substitutes must support -55°C to 125°C operation
Compliance and Certification:
- RoHS3 compliance required
- MSL 1 rating required
- REACH unaffected status required
Substitute parts are grouped by impedance value (47 Ohms, 50 Ohms, 60 Ohms) with consideration for current rating and DCR performance. Parts from Fair-Rite Products Corp., Würth Elektronik, Abracon LLC, and Pulse Electronics meet all mechanical and electrical requirements.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Impedance @ 100 MHz | Current Rating (Max) | DCR (Max) | Package | Product Status | RoHS Status |
|---|---|---|---|---|---|---|---|
| Z0603C560CSMST | KEMET | 56 Ohms | 400mA | 300mOhm | 0603 (1608 Metric) | Obsolete | ROHS3 Compliant |
| 2506036007Y0 | Fair-Rite Products Corp. | 60 Ohms | 400mA | 150mOhm | 0603 (1608 Metric) | Active | ROHS3 Compliant |
| 2506036007Z0 | Fair-Rite Products Corp. | 60 Ohms | 450mA | 250mOhm | 0603 (1608 Metric) | Active | ROHS3 Compliant |
| 742792608 | Würth Elektronik | 47 Ohms | 500mA | 100mOhm | 0603 (1608 Metric) | Active | ROHS3 Compliant |
| 74279267 | Würth Elektronik | 60 Ohms | 500mA | 300mOhm | 0603 (1608 Metric) | Active | ROHS3 Compliant |
| ACML-0603-600-T | Abracon LLC | 60 Ohms | 600mA | 300mOhm | 0603 (1608 Metric) | Active | ROHS3 Compliant |
| BBBK00160808600Y00 | Pulse Electronics | 60 Ohms | 400mA | 100mOhm | 0603 (1608 Metric) | Active | ROHS3 Compliant |
| BBGK00160808500Y00 | Pulse Electronics | 50 Ohms | 600mA | 60mOhm | 0603 (1608 Metric) | Active | ROHS3 Compliant |
| BBGK00160808600Y00 | Pulse Electronics | 60 Ohms | 700mA | 60mOhm | 0603 (1608 Metric) | Active | ROHS3 Compliant |
| BBNQ00160808600Y00 | Pulse Electronics | 60 Ohms | 500mA | 250mOhm | 0603 (1608 Metric) | Active | ROHS3 Compliant |
| BBSJ00160808600Y00 | Pulse Electronics | 60 Ohms | 400mA | 100mOhm | 0603 (1608 Metric) | Active | ROHS3 Compliant |
Engineering Selection Recommendations
Primary Substitutes (Closest Electrical Match):
Parts with 60 Ohms impedance at 100 MHz provide the closest functional equivalence to the original 56 Ohm specification. These include:
- 74279267 (Würth Elektronik WE-CBF series): Matches 400mA current rating and 300mOhm DCR specification. Active product status with full RoHS3 compliance.
- ACML-0603-600-T (Abracon LLC ACML series): Exceeds current rating at 600mA with matching 300mOhm DCR. Active product status with full RoHS3 compliance.
- BBBK00160808600Y00 (Pulse Electronics BBBK series): Matches 400mA current rating with improved 100mOhm DCR. Active product status with full RoHS3 compliance.
- BBSJ00160808600Y00 (Pulse Electronics BBSJ series): Matches 400mA current rating with improved 100mOhm DCR. Active product status with full RoHS3 compliance.
Secondary Substitutes (Alternative Impedance Values):
Parts with 47 Ohms or 50 Ohms impedance provide lower impedance filtering characteristics:
- 742792608 (Würth Elektronik WE-CBF series): 47 Ohms at 100 MHz with 500mA current rating and 100mOhm DCR. Active product status.
- BBGK00160808500Y00 (Pulse Electronics BBGK series): 50 Ohms at 100 MHz with 600mA current rating and 60mOhm DCR. Active product status.
Tertiary Substitutes (Enhanced Current Capability):
Parts with 60 Ohms impedance and elevated current ratings:
- BBGK00160808600Y00 (Pulse Electronics BBGK series): 60 Ohms at 100 MHz with 700mA current rating and 60mOhm DCR. Active product status.
- 2506036007Z0 (Fair-Rite Products Corp.): 60 Ohms at 100 MHz with 450mA current rating and 250mOhm DCR. Active product status.
All substitute parts are RoHS3 compliant, MSL 1 rated, and REACH unaffected. All operate within the -55°C to 125°C temperature range. Selection should be based on specific circuit requirements for impedance value, current capacity, and DC resistance performance.
Frequently Asked Questions (FAQ)
Q: Can I use a 60 Ohm ferrite bead as a direct replacement for the 56 Ohm Z0603C560CSMST?
A: Yes. The 60 Ohm impedance value is functionally equivalent for signal line filtering applications. The impedance difference of 4 Ohms falls within the tolerance of ferrite bead performance in typical EMI suppression circuits. All listed 60 Ohm substitutes meet or exceed the current rating and DCR specifications of the original part.
Q: What is the significance of DC Resistance (DCR) in ferrite bead selection?
A: DCR represents the resistive loss of the ferrite bead at DC and low frequencies. Lower DCR values reduce signal attenuation and power dissipation. The original Z0603C560CSMST specifies 300mOhm maximum DCR. Substitute parts with lower DCR values (such as 100mOhm or 60mOhm) provide improved signal integrity with reduced insertion loss.
Q: Are all substitute parts compatible with the same PCB footprint?
A: Yes. All substitute parts use the 0603 (1608 Metric) surface mount package with identical footprint dimensions of 0.063" L x 0.031" W (1.60mm x 0.80mm). Maximum height specifications range from 0.037" to 0.039", which is compatible with standard PCB assembly processes. Verify specific height constraints with your PCB design requirements.
Q: What is the difference between the Fair-Rite 2506036007Y0 and 2506036007Z0 parts?
A: Both parts provide 60 Ohms impedance at 100 MHz in the 0603 package. The 2506036007Y0 is rated for 400mA maximum current with 150mOhm DCR. The 2506036007Z0 is rated for 450mA maximum current with 250mOhm DCR. Selection depends on whether your circuit requires lower current with better DCR performance or higher current capability.
Q: Why are there multiple Pulse Electronics substitutes with the same impedance value?
A: Pulse Electronics offers multiple series within the 60 Ohm 0603 ferrite bead category with different performance characteristics. BBBK00160808600Y00 provides 700mA current rating with 60mOhm DCR. BBNQ00160808600Y00 provides 500mA current rating with 250mOhm DCR. BBSJ00160808600Y00 provides 400mA current rating with 100mOhm DCR. Selection should be based on your specific current and DCR requirements.
Q: Are all substitute parts RoHS3 compliant?
A: Yes. All listed substitute parts are RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level and REACH unaffected status. All parts are suitable for applications requiring environmental compliance certification.
Q: What is the advantage of selecting a substitute with higher current rating than the original part?
A: A higher current rating provides design margin and thermal headroom in your circuit. Parts such as BBGK00160808600Y00 (700mA) or ACML-0603-600-T (600mA) allow for increased signal current without exceeding component limits, reducing the risk of thermal stress and extending component life in high-current applications.
Q: Can I use the 47 Ohm Würth Elektronik 742792608 as a substitute?
A: Yes, with circuit verification. The 47 Ohm impedance provides lower impedance filtering compared to the original 56 Ohm specification. This part offers superior current handling (500mA) and lower DCR (100mOhm). Use this substitute when lower impedance filtering is acceptable or beneficial for your application.
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