Product Overview
The ZEMS0420 is an integrated molded inductor designed for high-density installation. It features a thin design with low DC resistance and ultra-high current capabilities, magnetic shielding for strong anti-electromagnetic interference, and high reliability with excellent vibration resistance due to its integral construction. The composite structure results in ultra-low buzz noise, and it utilizes low-loss alloy powder for low impedance, small parasitic capacitance, high efficiency, and low eddy-current loss. It operates at frequencies up to 3MHz with an absolute maximum voltage of 30VDC and is compliant with RoHS, Halogen Free, and REACH standards.
Product Attributes
- Brand: (ZEMS)
- Origin: Dongguan, China
- Material: Low-loss alloy powder
- Certifications: RoHS, Halogen Free, REACH
Technical Specifications
| Part No. | Inductance (H) | Tolerance | DCR (m) Typical | Saturation Current (A) Typical | Temperature Rise Current (A) Typical |
| ZEMS0420-R10M | 0.10 | 20% | 3.50 | 25.00 | 13.00 |
| ZEMS0420-R22M | 0.22 | 20% | 6.00 | 13.00 | 9.50 |
| ZEMS0420-R33M | 0.33 | 20% | 8.00 | 12.00 | 10.00 |
| ZEMS0420-R47M | 0.47 | 20% | 12.00 | 9.50 | 8.00 |
| ZEMS0420-R56M | 0.56 | 20% | 14.00 | 9.00 | 7.00 |
| ZEMS0420-R68M | 0.68 | 20% | 18.00 | 9.00 | 7.00 |
| ZEMS0420-1R0M | 1.00 | 20% | 24.00 | 7.00 | 6.00 |
| ZEMS0420-1R2M | 1.20 | 20% | 25.00 | 6.50 | 6.00 |
| ZEMS0420-1R5M | 1.50 | 20% | 40.00 | 6.00 | 5.00 |
| ZEMS0420-2R2M | 2.20 | 20% | 52.00 | 5.00 | 4.50 |
| ZEMS0420-3R3M | 3.30 | 20% | 70.00 | 4.00 | 3.30 |
| ZEMS0420-4R7M | 4.70 | 20% | 105.00 | 3.00 | 2.80 |
| ZEMS0420-6R8M | 6.80 | 20% | 120.00 | 2.40 | 10.00 |
| ZEMS0420-100M | 10.00 | 20% | 220.00 | 1.60 | 13.00 |
Applications
- PDA, notebook, desktop, server applications
- High current POL converters
- Battery powered devices
- DC/DC converters in distributed power systems
Environmental Data
- Operating Temperature: -55 to +125 (Including coils self-temperature rise)
Test Equipment
- Inductance: WK3260B LCR meter or equivalent
- Saturation & Temperature Rise Current: WK3260B+WK3265B
- DCR: Chroma 16502 or equivalent
Product Identification
- Product Symbol: ZEMS
- Dimensions (LWH): 4.4x4.2x1.8 mm
- Inductance Tolerance: M (20%)
Reliability Data
| Item | Requirements | Test Methods and Remarks |
| Operating Temperature Range | -55+125 (Including self-heating temperature rise) | |
| Solderability | 90% or more of electrode area shall be coated by new solder. | Dip pads in flux and dip in solder pot (96.5Sn/3.0Ag/0.5Cu) at 245 5 for (51) seconds. |
| Resistance to Soldering Heat | Appearance no visible mechanical damage; Inductance change: Within 10%. | Dip pads in flux and dip in solder pot (96.5Sn/3.0Ag/0.5Cu) at 2605 for (101) seconds. |
| Low temperature storage | Appearance no visible mechanical damage; Inductance change: Within 10%. | Store temperature -552 for total 1000hr. |
| High temperature storage | Appearance no visible mechanical damage; Inductance change: Within 10%. | Store temperature 1252 for total 1000hr. |
| Static Humidity | Appearance no visible mechanical damage; Inductance change: Within 10%. | Inductors shall be subjected to (933)%RH at 40 2 for 96 h2 h. Inductors are to be tested after having air dried for 2 hours. |
| Thermal shock | Appearance no visible mechanical damage; Inductance change: Within 10%. | (-403 for (303) min (852) /(303) min, conversion time (2~3) min, 5 cycles; Tested after 2 hours at room temperature within 48 hours. |
| Mechanical Shock | No evidence of terminal peel off and wire broken. | Soldered on PCB (1.0mm thick), fixed in a brass cube (15cm, 1.4Kg), natural fall from 0.5m height (X,Y,Z axes, once each). |
| Adhesion of terminal electrode | Strong bond between the pad and the core, without come off. | Soldered at 260 5 for 20 s5 s on a base with 0.3mm solder paste. Apply 10 N perpendicular to the electrode surface for 101 s. |
Packaging
Tape and Reel Specifications: Dimensions are in mm. Cover tape peel force: 10 to 120g. Noodle strip peeling angle: 165 to 180.
| Part No. | REEL (PCS) | Inside Box (PCS) | Outside Carton (PCS) |
| ZEMS0420 | 3000 | 12,000 | 36,000 |
| ZEMS0520 | 3000 | 6000 | 18,000 |
| ZEMS0530 | 2000 | 6000 | 18,000 |
| ZEMS0624 | 2000 | 4000 | 12,000 |
| ZEMS0630 | 1000 | 3000 | 12,000 |
| ZEMS0650 | 1000 | 3000 | 12,000 |
| ZEMS1040 | 1000 | 2000 | 6000 |
| ZEMS1050 | 800 | 1600 | 3600 |
| ZEMS1350 | 500 | 1000 | 3000 |
| ZEMS1360 | 500 | 1000 | 3000 |
Recommended Soldering Profile
Reflow soldering is recommended. Solder: Sn-3.0Ag-0.5Cu. Flux: Rosin-based, avoid strongly acidic or water-soluble flux.
Inspection Rules
Inspection Standard: GB/T2828.1-2003. Appearance and dimensions: Level II, AQL=0.4. L0A and L30DC: S-4, AQL=0.15. Customer must complete inspection and notify supplier in writing within one month of receipt, otherwise it will be considered approved.
Storage Methods
Storage Period: Use within 6 months from delivery to maintain solderability. Check solderability if stored over 6 months.Storage Conditions: Warehouse temperature: -10 to +40, Relative humidity: 30-70%RH. Avoid rapid temperature/humidity changes, chemical atmospheres, bulk storage, direct sunlight, heat shock, and vibration.
Notes
- Any revision to this specification requires confirmation from both parties.
- The manufacturer is not liable for equipment failure when the product is used outside of general electronics applications.
- This specification guarantees the quality of the component as a single unit. Customers must evaluate the product's performance in their application circuit.
- This specification approval must be returned with customer's chop within 7 days of receipt, or it will be considered approved.
2411220032_ZE-ZEMS0420-2R2M_C41413051.pdf
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