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參數資料
| 型號： | 1N4990DUS |
| 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： | 220 V, 5 W, SILICON, UNIDIRECTIONAL VOLTAGE REGULATOR DIODE |
| 封裝： | HERMETIC SEALED, GLASS, D-5B, 2 PIN |
| 文件頁數： | 3/4頁 |
| 文件大?。?/td> | 607K |
| 代理商： | 1N4990DUS |
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PDF資料 |
PDF描述 |
|---|---|
| 1N4990US | Low Current Operation at 250 ，Low Reverse Leakage,Low Noise Zener Diode |
| 1N4991 | Low Current Operation at 250 ，Low Reverse Leakage,Low Noise Zener Diode |
| 1N4991C | Low Current Operation at 250 ，Low Reverse Leakage,Low Noise Zener Diode |
| 1N4991CUS | Low Current Operation at 250 ，Low Reverse Leakage,Low Noise Zener Diode |
| 1N4991D | Low Current Operation at 250 ，Low Reverse Leakage,Low Noise Zener Diode |
相關代理商/技術參數 |
參數描述 |
|---|---|
| 1N4990US | 制造商:Microsemi Corporation 功能描述:ZENER SGL 220V 5% 5W 2PIN D-5B - Bulk |
| 1N4991 | 制造商:Microsemi Corporation 功能描述:ZENER SGL 240V 5% 5W 2PIN E - Bulk 制造商:Solid State Devices Inc (SSDI) 功能描述:Glass Body 5 Watt Zener |
| 1N4991US | 制造商:Microsemi Corporation 功能描述:ZENER SGL 240V 5% 5W 2PIN D-5B - Bulk |
| 1N4992 | 制造商:Microsemi Corporation 功能描述:ZENER SGL 270V 5% 5W 2PIN E - Bulk 制造商:Solid State Devices Inc (SSDI) 功能描述:Glass Body 5 Watt Zener |
| 1N4992JANTX | 制造商:Microsemi Corporation 功能描述: |
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