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參數(shù)資料
| 型號： | SA5.0A |
| 廠商： | MICRO COMMERCIAL COMPONENTS |
| 元件分類： | 參考電壓二極管 |
| 英文描述： | 500WATTS TRANSIENT VOLTAGE SUPPRESSOR 5.0 TO 170 VOLTS |
| 中文描述： | 500 W, UNIDIRECTIONAL, SILICON, TVS DIODE, DO-15 |
| 封裝： | PLASTIC PACKAGE-2 |
| 文件頁數(shù)： | 5/5頁 |
| 文件大小： | 97K |
| 代理商： | SA5.0A |
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TVS APPLICATION NOTES:
Transient Voltage Suppressors may be used at various points in a circuit to provide various degrees of
protection. The following is a typical linear power supply with transient voltage suppressor units placed at
different points. All provide protection of the load.
FIGURE 1
Transient Voltage Suppressors 1 provides maximum protection. However, the system will probably require
replacement of the line fuse(F) since it provides a dominant portion of the series impedance when a surge is
encountered.
However, we do not recommend to use the TVS diode here, unless we can know the electric circuit
impedance and the magnitude of surge rushed into the circuit. Otherwise the TVS diode is easy to be
destroyed by voltage surge.
Transient Voltage Suppressor 2 provides execllent protection of circuitry excluding the transformer(T).
However, since the transformer is a large part of the series impedance, the chance of the line fuse opening
during the surge condition is reduced.
Transient Voltage Suppressor 3 provides the load with complete protection. It uses a unidirectional
Transient Voltage Suppressor, which is a cost advantage. The series impedance now includes the line fuse,
transformer, and bridge rectifier(B) so failure of the line fuse is further reduced. If only Transient Voltage
Suppressor 3 is in use, then the bridge rectifier is unprotected and would require a higher voltage and current
rating to prevent failure by transients.
Any combination of these three, or any one of these applications, will prevent damage to the load. This would
require varying trade-offs in power supply protection versus maintenance(changing the time fuse).
An additional method is to utilize the Transient Voltage Suppressor units as a controlled avalanche bridge.
This reduces the parts count and incorporates the protection within the bridge rectifier.
FIGURE 2
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相關(guān)代理商/技術(shù)參數(shù) |
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| SA50ADI | 制造商:Diodes Inc 功能描述:TVS UNI-DIR 5.0V 500W DO-15 Axial 制造商:DIODES INC 功能描述:TVS UNI-DIR 5.0V 500W DO-15 制造商:Diodes Incorporated 功能描述: |
| SA50AE354 | 制造商:Vishay Intertechnologies 功能描述: |
| SA50ARL | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:500 Watt Peak Power MiniMOSORB Zener Transient Voltage Suppressors |
| SA50ARLG | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:500 Watt Peak Power MiniMOSORB Zener Transient Voltage Suppressors |
| SA50CE | 功能描述:運(yùn)算放大器 - 運(yùn)放 Switching AmpFull Bridge 80V 7A RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補(bǔ)償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
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