MI0805K400R-10 Laird Technologies Ferrite Bead (Ferrite Bead Chip) In Stock
Laird Technologies MI0805K400R-10 is a ferrite chip bead with 400Ω impedance at 100MHz in compact 0805 package. With <50mΩ DC resistance and 25-1000MHz frequency range, this low-loss EMI suppressor filters high-frequency noise from digital and analog signal lines. ROHS lead-free construction supports modern automated assembly. Available globally from authorized distributors with fast shipping for prototype and volume production.
- Manufacturer
- Laird Technologies
- Package
- Ferrite Bead Chip
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- MI0805K400R-10 Datasheet PDF
- Category
- Ferrite Bead
- Price
- From $0.0377(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MI0805K400R-10?
- 400Ω impedance at 100MHz provides >20dB EMI attenuation for high-speed digital buses
- Ultra-low <50mΩ DC resistance minimizes signal integrity degradation on power and data lines
- 25-1000MHz broadband coverage suits USB 2.0, I2C, SPI, and power rail filtering
- Compact 0805 footprint enables dense PCB layouts for mobile and IoT devices
What is MI0805K400R-10 used for?
MI0805K400R-10 is essential for USB 2.0 high-speed bus filtering in smartphones and tablets, suppressing conducted EMI from switching supplies without introducing signal reflections. Its 400Ω impedance at 100MHz suits differential pair I2C/SPI filtering on industrial IoT edge gateways requiring FCC Part 15 compliance. Additionally, the 25-1000MHz range makes it ideal for power distribution network (PDN) filtering on 1.2V low-voltage rails in microcontroller designs.
What are the specifications of MI0805K400R-10?
| Pbfree Code | Yes |
| Factory Lead Time | 9Weeks |
| YTEOL | 6.79 |
| Case Code | 0805 |
| Construction | Chip Bead |
| DC Resistance-Max | 0.05Ω |
| Filter Type | FERRITE CHIP |
| Frequency-Max | 1000MHz |
| Frequency-Min | 25MHz |
| Height | 0.9mm |
| JESD-609 Code | e3 |
| Mounting Type | SURFACE MOUNT |
| Number of Functions | 1 |
| Output Impedance | 40 OHM Ω |
| Packing Method | TR |
| Rated Current | 1.5A |
| Terminal Finish | Tin (Sn) - with Nickel (Ni) barrier |
| Package | Ferrite Bead Chip |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8504.50.80.00 |
| Country of Origin | Mainland China |
Where can I find the MI0805K400R-10 datasheet?
MI0805K400R-10 Datasheet DownloadOfficial datasheet from Laird Technologies
What are equivalent replacements for MI0805K400R-10?
Compatible alternatives and drop-in replacements for MI0805K400R-10:
suggested
Frequently Asked Questions
What impedance and frequency response does MI0805K400R-10 provide for USB 2.0 high-speed filtering?
MI0805K400R-10 delivers 400Ω impedance centered at 100MHz with broadband coverage from 25MHz to 1000MHz. This impedance profile suppresses USB 2.0 high-frequency harmonics (480Mbps signaling contains energy to ~1.5GHz), attenuating >20dB at 100MHz while maintaining <10dB loss at 480MHz fundamental. DC resistance <50mΩ ensures minimal signal amplitude loss, meeting USB 2.0 eye-mask requirements.
How much signal attenuation does MI0805K400R-10 introduce on a 3.3V I2C bus operating at 100kHz?
At 100kHz (well below the 25-1000MHz ferrite response window), MI0805K400R-10 exhibits minimal inductive reactance (<1Ω) and <50mΩ DC resistance, contributing <0.5% insertion loss. This negligible attenuation preserves I2C signal edges while suppressing conducted EMI from switching regulators on nearby power rails. For I2C, the ferrite acts primarily as a DC pass-through with HF noise rejection.
Is MI0805K400R-10 suitable for high-speed differential pair termination on 1.2V DDR4 memory rails?
MI0805K400R-10's 400Ω impedance at 100MHz is well-suited for series termination on DDR4 DRAM address and control lines operating at 1.2V. The <50mΩ DC resistance maintains signal swing symmetry, while the ferrite suppresses power-supply rejection (PSR) noise injection into the memory bus. For critical data lines, pairing MI0805K400R-10 series ferrites with 22Ω parallel terminators creates optimal impedance matching at 1.2V, 3.3V, or 5V rails.
What DC current capacity can MI0805K400R-10 handle in continuous power distribution filtering?
Laird MI0805K400R-10 is rated for up to 1.5A DC continuous current with <50°C rise above ambient. At 1.5A dissipation, power loss is P = I² × R = (1.5A)² × 0.05Ω = 0.1125W—reasonable for 0805 footprint with adequate copper pour. For higher currents (>2A), parallel ferrite bead chains or step up to 1206 package (MI1206K400R-10) are recommended.
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Why Buy from FindMyChip
About Laird Technologies
Laird Technologies is a leading electronic component manufacturer. FindMyChip sources Laird Technologies ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.1000 | $0.10 |
| 5+ | $0.0940 | $0.47 |
| 10+ | $0.0900 | $0.90 |
| 216+ | $0.0465 | $10.04 |
| 250+ | $0.0424 | $10.59 |
| 500+ | $0.0377 | $18.83 |
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