Date: 11/01/2010

Miniature quad switching diode array from Diodes tolerates phone line transients

Diodes Inc. has introduced the MMBD5004BRM, a new miniature quad switching diode array, which is designed for bridge implementation and suitable for Modem (Modulator-demodulator) tip/ring interface and general light duty offline rectification applications.

This device eases interface to telephone tip/ring applications and complies with the FCC (telco) polarity requirements. The device's high voltage rating (400V) provides adequate margin over the maximum ringing voltage specified by the FCC and provides high tolerance to line transients.

The diode array's combination of fast switching speed and low junction capacitance makes it suitable for preserving high-speed signal integrity while its high current rating of 225mA continuous and 625mA peak provides a healthy margin for general light duty rectification applications.

A small quad diode implementation 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.

The MMBD5004BRM's miniature form factor SOT26 packaging helps enable cost and space savings in DSL, analog and DAA (Direct Access Arrangement) Modems, answering machines, and caller identification systems.

For more details visit www.diodes.com