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The EMI wave absorber bus card has three layers, including absorber layer, adhesive/tap, and release paper.

| Item | Specifications |
|---|---|
| Frequency | 10M ~ 6G Hz |
| Thickness | 500 ± 10 µm |
| Size | 300MM x 20M mm |
| Density2 | 3.4 g/cm3 |
| Permeability | 120 @ 1 MHz |
| Temperature | -25~ 120 ℃ |
| Surface Resistance | 1 x 106 (min) Ω/ |
| Environment | RoHS Compliance |
| Halogen Free, PVC Free, Lead Free |

The production process of EMI wave absorber bus card includes metal smelting, pulverization, flaking and shaping. The complete EMI absorber materials production process is fully automatically and quality guaranteed with advanced manufacturing equipment. We can produce the customized high quality and cost effective wave absorbing bus card within a short time based on customers'specific requirements.


| Application Equipment | Position on Equipment | Remark |
|---|---|---|
| PDA/GPS | Noise on the processor/chip | |
| Barcode Scanner | Flat cable | |
| Mobile Phone | CPU,Intenna,between the speaker and the handset,RFID tags | EMI shielding, RFID |
| Cable | Cable harness | thin film absorbing material |
| Digital Camera | For linking the FPCB between the display and the body | thin film absorbing material |
| Test and Measurement equipment | In the equipment | Although the amount is small, it is expensive |
| DMB/Navigation | Improve receiving sensitivity | Electric wave absorbing material |
| Military Use | Confidentiality |

Quality Inspection Equipment for EMI Absorber Sheets
In order to ensure every piece of EMI absorber materials is of high quality, we have prepared a lots of inspection equipment, including optical projector, vernier caliper, thickness gauge, resistance test, viscosity meter and more.

Leader OPUS devotes to provide customers with quality EMI wave absorber bus card at reasonable price with timely delivery and good service. We always insist to help customers to maximize the values and minimize the cost. We can provide the complete EMI shielding solutions at low cost.


Leader OPUS is an ISO9001:2015 quality management system and EU RoHS environmental directives implemented enterprise. Our EMI wave absorber bus card are certificated with UL, REACH. The strict tests in function, quality, reliability and production feasibility at the design stage of each EMI electromagnetic wave absorber and the strict quality management in production ensure excellent quality EMI shielding materials.

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