Board mount EMI enclosures are metal or conductive housings designed to be mounted directly onto a PCB to shield sensitive components from electromagnetic interference (EMI) and radio frequency interference (RFI).
Key Features:
- Shielding effectiveness: 60–100 dB typical
- Materials: Tin-plated steel, nickel silver, aluminum, or conductive plastics
- Mounting: SMT or thru-hole pins, solder tabs, or clip-on designs
- Removable lids for post-assembly access
- Available with gaskets for enhanced RF sealing
Applications:
- Wireless modules (Wi-Fi, Bluetooth, Zigbee)
- High-speed digital circuits
- Medical and automotive electronics
- Consumer devices (smartphones, tablets)
Selection Criteria:
- Frequency range of concern
- PCB footprint and height constraints
- Thermal dissipation needs
- Serviceability (removable lid vs. sealed)
- Cost and volume requirements
Note: Proper grounding via multiple perimeter contacts is critical for effective shielding.