This data sheet provides the specifications of BLM18H/E/G series inductors, including size, resistance, rated current, etc.
The BLM series chip ferrite beads provide high‑impedance noise suppression for on‑board DC applications. They are available in multiple sizes (0201, 0402, 0603, 0805) and cover a wide frequency range (30 MHz – several hundred MHz). The beads do not require a ground connection and feature a nickel barrier structure for solder‑heat resistance.
Typical specifications include impedance at 100 MHz, rated current, DC resistance and operating temperature range for each part number. Design kits are also listed for quick selection of appropriate components.
No, the BLM series does not need a connection to ground.