Surface Mount Type

SEMITEC Voltage Regulating Diode (VRD) is a transient voltage suppressor device that is designed to absorb voltage surges and spikes that occur during power initiation. Our VRD features uniform avalanche breakdown across the junction, enabling a very fast response to surge voltage. Furthermore, its control voltage is almost independent from the current which makes it a highly reliable, high performance device. SEMITEC’S VRD series is fully compliant with RoHS DIRECTIVE2011/65/EU.

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Applications

・Protection of telecommunications line and equipment from lightning-induced surges
・ESD protection
・EMP protection
・Relays, solenoids, etc., switching surge protection
・Surge protection of fire alarms, smoke detectors, etc.
・Protection of electric circuits from abnormal voltage conditions

Dimensions

Rating

Item	Symbols	Rating	Unit	Conditions
Power rating	P	1.0	W	Glass epoxy substrate mounting
Transient permissible power	Pp	300	W	10/1000µs Waveform
		1200	W	1.2/50µs Waveform
		2000	W	8/20µs Waveform
Junction temperature	Tj	-40～150	℃
Storage temperature range	Tstg	-40～150	℃
Rated voltage	Vs		Listed under Electrical properties

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