This Product Selection Guide contains information to help select products in the RFI and EMI - Contacts, Fingerstock and Gaskets category on DigiKey.com
Fingerstock and gasket contacts limit electromagnetic interference (EMI), also called radio-frequency interference (RFI) when in the radio frequency spectrum, that affects electrical circuits by electromagnetic induction, electrostatic coupling, or conduction. They are used where removable parts or doors attach to a chassis or enclosure, making them susceptible to EMI. Contacts are attached using adhesive, clips, hardware, solder, slotting, or snap-in channels.
SelectionCharacteristics
Type: The names that differentiate product types that fit under this category from each other.
Shape: Describes the style or geometry of the available products.
Width: The measurement from the left side to the right side of the product when looking at the front.
Length: The measurement from the front side to the back side of the product when looking at the front.
Height: The measurement from the top to the bottom of the product when looking at the front.
Material: The material that the product is primarily made of. Remember plating can change the appearance and make something nickel look gold.
Plating: Indicates the finish/plating material applied to the device.
Plating - Thickness: Indicates the thickness of the finish/plating material applied to the device.
Attachment Method: This indicates how the product was designed to be designed to attach to the parts they are meant to protect.
Operating Temperature: Recommended operating temperature, typically given in a range or as a maximum. Exceeding these temperatures may affect performance or damage the device and other system components.
ProductExamples
| DigiKey Part Number | 732-4253-2-ND | |
| Manufacturer | Würth Elektronik | |
| Manufacturer Product Number | 331151702562 | |
| Description | CONTACT FINGER EMI SMD | |
| Datasheet | Click Here |
| DigiKey Part Number | 952-2669-2-ND | |
| Manufacturer | Harwin Inc. | |
| Manufacturer Product Number | S0951-46R | |
| Description | RFI SHIELD CLIP MINI TIN SMD | |
| Datasheet | Click Here |
| DigiKey Part Number | 732-3117-ND | |
| Manufacturer | Würth Elektronik | |
| Manufacturer Product Number | 3021003 | |
| Description | GASKET FABRIC/FOAM 10MMX1M RECT | |
| Datasheet | Click Here |
MediaLinks
Videos
Beryllium Copper Fingerstock Gaskets
Electronic Component Information and Resources
Articles
RF Shielding: The Art and Science
Selecting RF Connectors for Extreme Environments