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0805USBF-901MRC
Coilcraft
CMC 500MA 2LN 300 OHM SMD
2410 Pcs New Original In Stock
60 nH 2 Line Common Mode Choke Surface Mount 300 Ohms 500mA DCR 140mOhm
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5.0 / 5.0
- (153 Ratings)
0805USBF-901MRC
Product Overview
2142456
DiGi Electronics Part Number
0805USBF-901MRC-DGManufacturer
Coilcraft
0805USBF-901MRC
Description
CMC 500MA 2LN 300 OHM SMDInventory
2410 Pcs New Original In Stock
60 nH 2 Line Common Mode Choke Surface Mount 300 Ohms 500mA DCR 140mOhm
Quantity
Minimum 1
Minimum 1
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0805USBF-901MRC Technical Specifications
Category
Common Mode Chokes
Packaging
Tape & Reel (TR)
Series
0805USBF
Product Status
Active
Filter Type
Signal Line
Number of Lines
2
Impedance @ Frequency
300 Ohms @ 3 GHz
Inductance @ Frequency
60 nH @ 100 MHz
Current Rating (Max)
500mA
DC Resistance (DCR) (Max)
140mOhm
Voltage Rating - DC
-
Voltage Rating - AC
-
Operating Temperature
-40°C ~ 125°C
Ratings
AEC-Q200
Approval Agency
-
Features
-
Mounting Type
Surface Mount
Size / Dimension
0.080" L x 0.050" W (2.03mm x 1.27mm)
Height (Max)
0.055" (1.40mm)
Package / Case
0805 (2012 Metric), 4 PC Pad
Datasheet & Documents
HTML Datasheet
0805USBF-901MRC-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8504.50.8000
Additional Information
Other Names
2457-0805USBF-901MRC
Standard Package
1
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
비용 효율적인 쇼핑 경험을 제공하는 곳이에요. 웹사이트도 사용하기 쉽고 깔끔합니다.
Dec 02, 2025
좋은 품질과 가격으로 계속 구매할 만한 가치가 있어요.
Dec 02, 2025
品質に一貫性があり、価格も他店と比較して非常に良いです。
Dec 02, 2025
Their price-to-performance ratio is outstanding in the industry.
Dec 02, 2025
Their tracking updates were timely and reliable.
Dec 02, 2025
DiGi Electronics provides helpful tutorials and FAQs, enhancing my overall shopping experience.
Dec 02, 2025
Reliable after-sales support has enhanced our overall satisfaction.
Dec 02, 2025
I’ve found their products to be of exceptional quality time and again.
Dec 02, 2025
Their support staff is attentive and responds to emails within hours, resolving issues efficiently.
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Frequently Asked Questions (FAQ)
When integrating the Coilcraft 0805USBF-901MRC common mode choke into a USB 2.0 data line, what are the potential risks of exceeding its 500mA current rating, especially during inrush or transient events, and how can I mitigate this?
Exceeding the 500mA current rating of the Coilcraft 0805USBF-901MRC, even for short durations, can lead to excessive heating, degradation of the magnetic core material, and ultimately, component failure. This can manifest as increased DCR (beyond the 140mOhm spec), reduced impedance, or even open circuit conditions. To mitigate this risk, implement proper power management strategies on your USB host or device to limit current draw. Consider adding a downstream overcurrent protection circuit, such as a resettable fuse (PTC) or a dedicated current-limiting IC, before the choke. During design, perform thorough surge and transient analysis using simulation tools to understand peak current demands and ensure the 0805USBF-901MRC is adequately protected or sized for worst-case scenarios.
Is the Coilcraft 0805USBF-901MRC suitable for high-speed data lines beyond standard USB 2.0, like USB 3.0 or Ethernet, considering its 300 Ohm impedance at 3 GHz, and what are the key design considerations for such applications?
While the Coilcraft 0805USBF-901MRC exhibits 300 Ohms impedance at 3 GHz, its suitability for USB 3.0 (5 Gbps) or Gigabit Ethernet (1 Gbps) requires careful consideration. USB 3.0 and Ethernet signals have much faster rise times and higher frequency content than USB 2.0, making impedance matching and insertion loss critical. The 60 nH inductance at 100 MHz might become significant at higher frequencies, potentially impacting signal integrity. For these higher-speed applications, a common mode choke with a higher cutoff frequency and flatter impedance curve is generally preferred. You must perform detailed signal integrity simulations with the 0805USBF-901MRC in the signal path to evaluate its impact on eye diagrams, return loss, and insertion loss. If simulations reveal unacceptable degradation, consider alternatives like the Coilcraft XFL series or specialized high-speed common mode chokes designed for the specific bandwidth requirements.
If a previously designed system used a common mode choke that is now obsolete, what are the critical parameters to evaluate when selecting the Coilcraft 0805USBF-901MRC as a direct replacement, and what potential compatibility issues might arise?
When replacing an obsolete common mode choke with the Coilcraft 0805USBF-901MRC, prioritize matching key electrical and physical parameters. Beyond DC resistance (DCR) and current rating, critically evaluate the impedance profile across the operating frequency range of your application. The 300 Ohms at 3 GHz spec of the 0805USBF-901MRC must be compared to the original choke's performance at your system's operating frequencies. Pay close attention to the inductance value at your specific operating frequency (60 nH at 100 MHz) and its impact on noise suppression. Physical dimensions (0805 package) are also crucial for footprint compatibility. Potential issues include mismatch in impedance, leading to increased signal reflections or reduced noise attenuation, or a higher DCR contributing to power loss and heat. Always verify the replacement's performance through testing to ensure it meets or exceeds the original component's functionality and reliability.
What are the primary concerns regarding the long-term reliability and performance degradation of the Coilcraft 0805USBF-901MRC common mode choke when subjected to the maximum operating temperature of 125°C and continuous current operation, and what preventative measures can be taken?
Operating the Coilcraft 0805USBF-901MRC at its maximum junction temperature of 125°C continuously can accelerate material degradation, particularly affecting the magnetic core and insulation. This can lead to a gradual increase in DCR, a decrease in impedance at higher frequencies, and potentially a reduction in its effective noise suppression capabilities over time. To prevent premature degradation, ensure your PCB design provides adequate thermal dissipation. Consider airflow or heatsinking if the ambient temperature or operating conditions are consistently high. Additionally, operating the choke well below its 500mA maximum current rating, especially at elevated temperatures, provides a significant safety margin and extends its operational lifespan. Analyzing the power dissipation (I²R losses) within the choke under your specific operating conditions is crucial to predict its actual operating temperature.
Given that the Coilcraft 0805USBF-901MRC is AEC-Q200 qualified, what specific design risks or uncertainties does this qualification help to mitigate when using it in automotive or other demanding industrial applications, and are there any remaining considerations for harsh environments?
The AEC-Q200 qualification for the Coilcraft 0805USBF-901MRC indicates that it has undergone rigorous testing for reliability under various environmental stress conditions relevant to automotive and industrial applications. This qualification helps mitigate risks associated with component failure due to thermal cycling, humidity, vibration, and mechanical shock, ensuring consistent performance in demanding environments. However, it's important to note that AEC-Q200 qualification doesn't cover all extreme scenarios. For particularly harsh industrial environments with exposure to aggressive chemicals, extreme EMI levels beyond typical automotive noise, or very high-frequency interference, you should still perform targeted application-specific testing. While the 0805USBF-901MRC is robust, consider its operating temperature limits (-40°C to 125°C) and ensure your application's environmental profile aligns with these specifications. For situations exceeding these, consult Coilcraft for parts with wider temperature ranges or enhanced environmental protection.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
0805USBF-901MRC CAD Models
Coilcraft 0805USBF-901MRC PCB symbols & footprints
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