DIODES Flashcards
(45 cards)
the junction diode is formed when an n-type and a p type materials are brought together.
-P-N JUNCTION DIODES
p region is connected to a conductive terminal. p region is called what?
-ANODE
n region is connected to a second conductive terminal. n region is called what?
-CATHODE
condition of the diode without any supply voltage.
-DIODE NO BIAS
the region of uncovered positive and negative ions.
-DEPLETION REGION
in the absence of an applied bias voltage, the net flow of charge in any one direction for a semiconductor diode is
-ZERO
is the condition that allows current through the pn junction.
-DIODE FORWARD BIAS
extremely small current that exists in reverse bias after the transition current dies out is caused by the minority carriers in the n and p regions.
-REVERSE CURRENT
if the external reverse bias voltage is increased to a value called the breakdown voltage, the reverse current will drastically increase.
-DIODE REVERSE BREAKDOWN
the multiplication of conduction electrons is known as the
-AVALANCE EFFECT
Vth is the required voltage across junction of the diode before forward current flow.
-THRESHOLD VOLTAGE
the magnitude of current the diode can handle without burning when forward biased.
-FORWARD CURRENT
the required voltage in order to produce forward current or the voltage drop across the diode when conducting.
-FORWARD VOLTAGE
the magnitude of current that will leak when the diodes is reversed biased, ofentimes called leakage current.
-REVERSE CURRENT
the maximum reverse voltage that can be applied before current surges.
-REVERSE BREAKDOWN VOLTAGE
the time taken by the diode to operated in the reverse condition from forward conduction.
-REVERSE RECOVERY TIME
the maximum power the diode can handle without burning.
-MAXIMUM POWER DISSIPATION
the reduction of power handling capability of the diode due to the increase of ambient temperature from room temperature.
-LINEAR POWER DERATING FACTOR
the maximum temperature the diode can operate before burning its junction.
-MAXIMUM JUNCTION TEMPERATURE
diffusion capacitance or storage capacitance
-FORWARD BIAS CAPACITANCE
transition capacitance or depletion region capacitance
-REVERSE BIAS CAPACITANCE
diode capacitance is equivalent to an open circuit.
-LOW FREQUENCY
diode capacitance is equivalent to a short circuit.
-HIGH FREQUENCY
Defined as a point on the characteristic curve.
-DC OR STATIC RESISTANCE
