Passives

High voltage diode array tolerates phone line transients

7th January 2010
ES Admin
With a breakdown voltage rating of 400V, the MMBD5004BRM quad switching diode array from Diodes Incorporated is designed to withstand worst case line transients in DAA modem tip-and-ring telephone line interfacing and general off-line rectification applications.
The diode array's combination of faster switching speed, trr=50ns, and low junction capacitance, typically 0.7pF at VR=0V and f=1.0MHz, makes it ideal for preserving high-speed signal integrity while its high current rating of 225mA continuous and 625mA peak provides for a healthy margin for DAA modem needs.

A smaller quad diode implementation than many existing mini-bridge solutions, the MMBD5004BRM comes in thea space-saving SOT26 package. Housing two separate pairs of series connected diodes for linking as a full wave bridge rectifier, the diode array will suit applications where PCB size and cost are critical.

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