參數(shù)資料
型號: 1N4988US
廠商: MICROSEMI CORP-SCOTTSDALE
元件分類: 參考電壓二極管
英文描述: Low Current Operation at 250 ,Low Reverse Leakage,Low Noise Zener Diode
中文描述: 180 V, 0.5 W, SILICON, UNIDIRECTIONAL VOLTAGE REGULATOR DIODE
封裝: HERMETIC SEALED, GLASS, D58, 2 PIN
文件頁數(shù): 3/4頁
文件大小: 607K
代理商: 1N4988US
VOIDLESS-HERMETICALLY-SEALED
5 WATT GLASS ZENER DIODES
SCOTTSDALE DIVISION
1N4954 thru 1N4996, 1N5968 thru 1N5969, and
1N6632 thru 1N6637
W
M
.
C
1
1
1
SYMBOLS & DEFINITIONS
Symbol
V
Z
I
Z
, I
ZT
, I
ZK
Definition
Zener Voltage: The zener voltage the device will exhibit at a specified current (I
Z
) in its breakdown region.
Regulator Current: The dc regulator current (I
Z
), at a specified test point (I
ZT
), or near breakdown knee (I
ZK
).
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 I
ZT
or I
ZK
) and superimposed on I
ZT
or I
ZK
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.
Z
ZT
or Z
ZK
V
F
I
R
I
ZM
I
ZSM
GRAPHS
FIGURE 1
FIGURE 2
SURGE POWER vs.
SURGE DURATION
POWER DISSIPATION vs. LEAD
TEMPERATURE DERATING CURVE
FIGURE 3
TYPICAL ZENER IMPEDANCE vs.
ZENER CURRENT
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 3
Copyright
2005
2-4-2005 REV C
相關(guān)PDF資料
PDF描述
1N4989US Low Current Operation at 250 ,Low Reverse Leakage,Low Noise Zener Diode
1N4992US Low Current Operation at 250 ,Low Reverse Leakage,Low Noise Zener Diode
1N6636DUS Low Current Operation at 250 ,Low Reverse Leakage,Low Noise Zener Diode
1N4990C Low Current Operation at 250 ,Low Reverse Leakage,Low Noise Zener Diode
1N4990CUS Low Current Operation at 250 ,Low Reverse Leakage,Low Noise Zener Diode
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