CD74HCT280EE4 데이터 시트보기 (PDF) - Microsemi Corporation
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CD74HCT280EE4 Datasheet PDF : 4 Pages
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SCOTTSDALE DIVISION
1N4954 thru 1N4996, 1N5968 thru 1N5969, and
1N6632 thru 1N6637
VOIDLESS-HERMETICALLY-SEALED
5 WATT GLASS ZENER DIODES
Symbol
VZ
IZ, IZT, IZK
ZZT or ZZK
VF
IR
IZM
IZSM
SYMBOLS & DEFINITIONS
Definition
Zener Voltage: The zener voltage the device will exhibit at a specified current (IZ) in its breakdown region.
Regulator Current: The dc regulator current (IZ), at a specified test point (IZT), or near breakdown knee (IZK).
Dynamic Impedance: The small signal impedance of the diode when biased to operate in its breakdown region
at a specified rms current modulation (typically 10% of IZT or IZK) and superimposed on IZT or IZK respectively.
Maximum Forward Voltage: The maximum forward voltage the device will exhibit at a specified current.
Maximum Reverse Current: The maximum reverse (leakage) current that will flow at the specified voltage and
temperature.
Maximum Regulator (Zener) Current: The maximum rated dc current for the specified power rating.
Maximum Zener Surge Current: The nonrepetitive peak value of zener surge current at a specified wave form.
GRAPHS
FIGURE 1
POWER DISSIPATION vs. LEAD
TEMPERATURE DERATING CURVE
FIGURE 2
SURGE POWER vs.
SURGE DURATION
FIGURE 3
TYPICAL ZENER IMPEDANCE vs.
ZENER CURRENT
Copyright 2005
2-4-2005 REV C
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 3
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