Product Overview
The ZEMS0850 series is an integrated molding power inductor designed for high-density installation. It features low DC resistance, ultra-high current capability, and magnetic shielding for strong anti-electromagnetic interference. Its composite structure ensures high reliability, excellent vibration resistance, and ultra-low buzz noise. This inductor is suitable for various applications including PDA, notebook, desktop, server applications, high current POL converters, battery-powered devices, and DC/DC converters in distributed power systems.
Product Attributes
- Brand: (Zengyi Industrial)
- Origin: Dongguan, China
- Material: Low loss alloy powder
- Certifications: RoHS, Halogen Free, REACH Compliant
Technical Specifications
| Part No. | Inductance (H) | Tolerance | Test Frequency/Voltage | DCR (m) Typical | Saturation Current (A) Typical | Temperature Rise Current (A) Typical | Dimensions (LWH) (mm) |
| ZEMS0850-R56M | 0.56 | 20% | 100KHz/1.0V | 3.00 | 4.50 | 30.0 | 8.5x8.0x5.0 |
| ZEMS0850-R68M | 0.68 | 20% | 100KHz/1.0V | 3.60 | 6.00 | 25.0 | 8.5x8.0x5.0 |
| ZEMS0850-1R0M | 1.0 | 20% | 100KHz/1.0V | 4.10 | 5.50 | 21.0 | 8.5x8.0x5.0 |
| ZEMS0850-1R5M | 1.5 | 20% | 100KHz/1.0V | 5.00 | 7.00 | 20.0 | 8.5x8.0x5.0 |
| ZEMS0850-2R2M | 2.2 | 20% | 100KHz/1.0V | 8.20 | 12.0 | 17.0 | 8.5x8.0x5.0 |
| ZEMS0850-3R3M | 3.3 | 20% | 100KHz/1.0V | 11.0 | 15.0 | 13.0 | 8.5x8.0x5.0 |
| ZEMS0850-4R7M | 4.7 | 20% | 100KHz/1.0V | 15.0 | 20.0 | 12.5 | 8.5x8.0x5.0 |
| ZEMS0850-5R6M | 5.6 | 20% | 100KHz/1.0V | 15.0 | 20.0 | 12.0 | 8.5x8.0x5.0 |
| ZEMS0850-6R8M | 6.8 | 20% | 100KHz/1.0V | 15.0 | 20.0 | 11.0 | 8.5x8.0x5.0 |
| ZEMS0850-100M | 10.0 | 20% | 100KHz/1.0V | 35.0 | 45.0 | 8.5 | 8.5x8.0x5.0 |
| ZEMS0850-150M | 15.0 | 20% | 100KHz/1.0V | 47.0 | 55.0 | 7.0 | 8.5x8.0x5.0 |
| ZEMS0850-220M | 22.0 | 20% | 100KHz/1.0V | 78.0 | 88.0 | 5.5 | 8.5x8.0x5.0 |
| ZEMS0850-330M | 33.0 | 20% | 100KHz/1.0V | 120.0 | 140.0 | 6.0 | 8.5x8.0x5.0 |
| ZEMS0850-470M | 47.0 | 20% | 100KHz/1.0V | 177.0 | 190.0 | 4.0 | 8.5x8.0x5.0 |
| ZEMS0850-560M | 56.0 | 20% | 100KHz/1.0V | 188.0 | 226.0 | 3.5 | 8.5x8.0x5.0 |
| ZEMS0850-680M | 68.0 | 20% | 100KHz/1.0V | 280.0 | 310.0 | 3.00 | 8.5x8.0x5.0 |
| ZEMS0850-101M | 100.0 | 20% | 100KHz/1.0V | 280.0 | 310.0 | 2.50 | 8.5x8.0x5.0 |
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
Dimension (LWH): 0850 (8.5x8.0x5.0 mm)
Inductance Nominal Value: Varies by part number (e.g., 10uH)
Inductance Tolerance: M (20%)
Shape and Dimensions
| Part No. | A (8.50.5) | B (8.000.30) | C (5.0) | D (3.00.3) | E (1.80.3) | F (4.50) | G (9.5) | H (3.50) |
| ZEMS0850 | 8.50.5 | 8.000.30 | 5.0 | 3.00.3 | 1.80.3 | 4.50 | 9.5 | 3.50 |
Reliability Data
| Requirement | Test Method and Remarks |
| Operating Temperature Range: -55+125 (Including self-heating temperature rise) | -55+125 |
| 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 2455 for (51) seconds. |
| Resistance to Soldering Heat: 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: No visible mechanical damage. Inductance change: Within 10%. | Store temperature -552 for total 1000hr. |
| High temperature storage: No visible mechanical damage. Inductance change: Within 10%. | Store temperature 1252 for total 1000hr. |
| Static Humidity: No visible mechanical damage. Inductance change: Within 10%. | Subjected to (933)%RH at 402 for 96h2h. Tested after 2 hours air drying at room temperature. |
| Thermal shock: 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 air drying at room temperature. |
| Mechanical Shock: No evidence of terminal peel off and wire broken. | Soldered on 1.0mm thick PCB, fixed in a 15cm cube (1.4Kg brass base), dropped from 0.5m height (X,Y,Z directions). |
| Adhesion of terminal electrode: Strong bond between the pad and the core, without come off. | Soldered at 2605 for 20s5s on a substrate with 0.3mm solder paste. Applied 10N vertically to the electrode for 10s1s. |
Packaging
Tape and Reel Specifications: Available for SMD Power Inductors. Specific dimensions and quantities are detailed in the datasheet.
Recommended Soldering Profile
Applicable soldering process: Reflow soldering.
Soldering Materials:
- Solder: Sn-3.0Ag-0.5Cu
- Flux: Rosin-based flux (avoid strongly acidic flux with chlorine exceeding 0.2 wt% and water-soluble flux).
Soldering Profile: Refer to specific curve in datasheet.
Inspection Rules
Inspection per GB/T2828.1-2003. Examination Level: Appearance and dimensions, II, AQL=0.4; Electrical parameters (L0A, L30DC), S-4, AQL=0.15.
Customer to complete inspection and notify supplier in writing within one month of receipt; otherwise, 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% to 70%RH
- Avoid rapid changes in temperature and humidity.
- Do not store in chemical atmospheres (e.g., sulfurous acid gas, alkaline gas).
- Do not store in bulk packaging to prevent damage.
- Store products on pallets to protect from humidity and dust.
- Avoid heat shock, vibration, and direct sunlight.
Notes
- Any revision to this specification requires confirmation from both parties.
- The manufacturer is not liable for equipment failure caused by using the product in applications other than general electronics.
- This specification covers the quality of the component as a single unit. Thorough evaluation in the customer's application circuit is required.
- This approval sheet must be returned with customer's chop within 7 days of receipt; otherwise, it is considered approved by default.
2411220037_ZE-ZEMS0850-330M_C41438711.pdf
Please Use Our Online Inquiry Contact Form Below If You Have Any Questions, Our Team Will Get Back To You As Soon As Possible
