Vishay VEMI256A-SD2 EMI filter

The VEMI256A-SD2, from Vishay Intertechnology, is a highly integrated two-channel filter in an ultracompact chip level package for space-constrained applications. Engineered as a dual-channel filter array, the product helps suppress electromagnetic interference (EMI) and radio frequency interference (RFI) for two protection paths while providing robust system-level electrostatic discharge (ESD) protection for interface line filtering.

The device offers a low leakage current for ESD protection and enables designers to filter and clamp two different signal or data lines to the device’s ground. The clamping voltage is rated at ±30 kV and helps prevent damage to the protected device when subjected to ESD pulses. The product has been tested per IEC 61000-4-2 standards, meeting ESD immunity requirements with ratings at ±25 kV for both contact and air discharge. The filter also features a cut-off frequency of 60 MHz (typical), line resistance of 60Ω (typical) and an operating temperature of ‑40 to +150°C.

The filter is available in a 0.45 mg, CLP1007-5M package that prevents device shorts while offering optimum stand-off and minimal tilt and rotation for space-sensitive devices. The filter also meets the UL 94 flammability standard and has a moisture sensitivity level classified to level 1 according to J-STD-020. It is suitable for a variety of mobile and wired communication devices, including smartphones, tablets, portable electronic devices, display interfaces, keypads and high-speed I/O data ports.