Data Sheet of Diode

– Provides maximum ratings, electrical characteristics, mechanical data, graphs of parameters, etc. for electrical device in use.

– Several parameters are seen in a data sheet for diodes:

Maximum ratings

i) V_RRM: (Peak repetitive reverse voltage).

– Maximum reverse peak voltage that can be applied repetitively across the diode.

ii) V_R: (DC blocking voltage)

– Maximum reverse dc voltage that can be applied across the diode.

iii) V_RSM: (Nonrepetitive peak reverse voltage)

– Maximum reverse peak value of nonrepetitive voltage that can be applied across diode.

iv) I_O: (Average rectified forward current)

– Maximum average value of a 60Hz rectified forward current.

v) I_FSM: (Nonrepetitive peak surge current)

– Maximum peak value of nonrepetitive (one cycle) forward surge current.

– A graph for different temperatures is generally available.

vi) T_A:

– Ambient temperature.

vii) T_J:

– Operating junction temperature range.

viii) T_stg:

– Storage junction temperature range.

Electrical Characteristics

i) v_F: Instantaneous voltage across the forward-biased diode when forward current is 1 A at 25^oC. Shown generally shown by a graph.

ii) V_F(avg): Maximum forward voltage drop averaged over a full cycle.

iii) I_R: Maximum current when diode is reverse-biased.

iv) I_R(avg): Maximum reverse current averaged over one cycle (when reverse-biased with an ac voltage).