PRC221

CAMD's PRC201/211/PRC221 Tapped Filter is designed to suppress EMI/RFI noise on high speed data lines and at I/O ports of PCMCIA fax/modem and LAN type cards. This integrated thin film resistor-capacitor network is housed in a ultra low profile, surface mount package suitable for bottom side mounting to the card which minimizes space and routing problems and improves reliability.

 Why thin film EMI/RFI filters PRC221 EMI/RFI filters are needed to suppress noise at low and high frequencies of the signal. Ferrite beads used for EMI/RFI filtering are bulky and ineffective at low frequencies and have saturation problems at high frequencies. Resistor-capacitor networks offer the best technical approach for effective

EMI/RFI filtering PRC221. Conventional thick film-based EMI/RFI filters do not effectively suppress noise at high frequencies due to the fact that EMI/RFI filters using thick film technology have high parasitic inductance which becomes the dominant component of the capacitor's impedance past resonance, and therefore significantly affects high frequency performance of the filter.

CAMD's PRC201/211/PRC221 Tapped Filter is fabricated on a silicon substrate using advanced thin film technology. These EMI/RFI filters have very low parasitic inductance and suppress EMI/RFI noise at low and high frequencies to well above 1000 MHz.