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Dimensions: 4.0×4.0×2.1mm
Inductance Range: 0.22~2.2μH (±20%)
• High current, ultra-low DCR
• Soft saturation characteristics, suitable for VRM/VRD power supplies
Core Material: Composite magnetic powder core
Environmental Rating: RoHS compliant, Halogen-free
Terminal Plating: Ni-Sn (customizable SAC/SP)
Anti-rust Treatment: Terminal anti-rust plating
Operating Temperature: -40℃ ~ +125℃
Max. Component Temperature: +165℃ (ambient + temp rise)
Storage Temperature: -55℃~+165℃ (bulk); -55~+80℃ (reel)
Reflow Soldering: Max. 3 cycles, 260℃/40s
MSL Rating: Level 1, unlimited floor life
Rated Voltage: 60V

Specifications

No.Part NumberInductance ±20% (μH)DCR typ (mΩ)DCR max (mΩ)SRF typ (MHz)Isat (A)Irms 20℃ rise (A)Irms 40℃ rise (A)
1SYS4020-221MSN0.225.816.40 19118.712.0 16.8
2SYS4020-401MSN0.40 7.558.30 14512.510.0 14.0 
3SYS4020-601MSN0.60 9.50 10.4510610.47.911.7
4SYS4020-102MSN1.0 13.2514.60 798.76.79.6
5SYS4020-122MSN1.217.7519.50 697.96.69.0 
6SYS4020-152MSN1.521.4523.60 647.15.27.5
7SYS4020-222MSN2.235.20 38.70 525.64.0 5.5
  1. Inductance: 1MHz, 0.1Vrms, 0Adc test condition, Ta=25℃.

  2. DCR: DC micro-ohmmeter measurement.

  3. SRF: High-precision network analyzer test.

  4. Isat: DC current at which inductance drops by specified percentage at 25℃; derating required for high-temperature applications.

  5. Irms: DC current causing specified temperature rise (20℃/40℃); for reference only, actual verification required in end-system testing.

  6. Terminal Code: SN=Sn-Ni, SAC=Sn-Ag-Cu; SP=Sn-Pb (non-RoHS).

  7. Packaging: Tape & reel, complies with EIA-481 standards; supports 7-inch / 13-inch reels.

  8. Electrical Test Conditions: Ta=25℃, specifications subject to change without notice.


Key Features

  • High current, ultra-low DCR, high efficiency

  • Soft saturation characteristics, ideal for VRM/VRD

  • Fully magnetically shielded, low EMI, buzz-free

  • RoHS compliant, Halogen-free

Materials & Plating

Core Material: Composite magnetic powder core Environmental Rating: RoHS compliant, Halogen-Free Terminal Plating: Ni-Sn (customizable SAC/SP) Anti-rust Treatment: Terminal anti-rust plating

Temperature Range

Operating Temperature: -40℃ ~ +125℃ Max. Component Temperature: +165℃(Ambient + Temp Rise) Storage Temperature: -55℃+165℃(bulk); -55+80℃(reel)

Soldering & Reliability

Reflow Soldering: Max. 3 cycles, 260℃/40s MSL Rating: Level 1, unlimited floor life Rated Voltage: 60V

Electrical Test Conditions(Ta=25℃)

Inductance:1MHz、0.1Vrms、0Adctest condition DCR:DC micro-ohmmeter measurement SRF:High-precision network analyzer test Isat:DC current at which inductance drops by specified percentage at 25℃; derating required for high-temperature applications Irms:DC current causing specified temperature rise (20℃/40℃); for reference only, actual verification required in end-system testing

Part Numbering & Packaging Information

Terminal Code Definition: SN=Sn-Ni, SAC=Sn-Ag-Cu; SP=Sn-Pb (non-RoHS) Packaging: Tape & reel, complies with EIA-481 standards; supports 7-inch / 13-inch reels

Notes: Electrical specifications & test conditions Ta=25℃, specifications subject to change without notice.


SYS2DDimension Drawing4020_01.png

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