瞬態(tài)電壓抑制器是一種能夠在電路中保護(hù)電子設(shè)備免受電壓過(guò)高的影響的元器件。其主要原理是基于二極管的正反向?qū)ㄌ匦?，在一定電壓范圍?nèi)能夠迅速響應(yīng)并消耗過(guò)高的電壓脈沖，從而降低電路中的電壓峰值，保護(hù)后續(xù)設(shè)備不被高壓電擊傷害。

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　　瞬態(tài)電壓抑制器的主要特點(diǎn)如下：

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　　1. 可以對(duì)各種電壓峰值和脈沖寬度的過(guò)電壓進(jìn)行抑制。

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　　2. 可以快速響應(yīng)，對(duì)瞬態(tài)過(guò)電壓進(jìn)行保護(hù)，保證了電路的安全性和穩(wěn)定性。

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　　3. 采用高靈敏度材料制作，具有低漏電流和低工作電壓的特點(diǎn)。

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　　4. 長(zhǎng)期穩(wěn)定可靠，使用壽命長(zhǎng)。

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　　The Gaia Converter LGDSI-75 Series designates an active power front end module designed to compley protect electronic systems. It embeds spike/transient suppression, EMI filtering, reverse polarity protection and inhibit functions as needed in typical Railway & high end Industrial products.

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　　The LGDSI-75 delivers an adapted output voltage compliant with Gaia Converter DC/DC range of modules. This line of module is optimized to provide high efficiency up to 98% over the whole power range between 4W and 75W power.

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　　Model:LGDSI75系列瞬態(tài)電壓抑制器 LGDSI75-Q-K

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　　Gaia's LGDSI-75 Industrial Grade offer operating temperature ranges of -40 to +95°C with input ranges typically required for Transportation / OEM / Industrial applications:LGDSI75系列瞬態(tài)電壓抑制器 LGDSI75-Q-K

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　　LGDSI-75-Q-K :43-154 Vdc permanent; 165 Vdc / 1 s & 176 Vdc / 100 ms transients; 1.8kV / 50 μs spikes

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　　The LGDSI-75 features 2 modes of operations as follow :

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　　Normal operation: Normal operation occurs when input bus line is in steady state permanent range. The LGDSI-75 is then operating in steady transparency state providing an output with a typical 1,5V drop-out voltage.

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　　Transient and spikes operation: The LGDSI-75 can sustain both:

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　　- transient during 1s according or EN50155 requirements

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　　- high spike levels up to 1.8kV with 5 Ohms impedance and 8.4kV with 100 Ohms impedance to meet input bus standards of EN50155.

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　　LGDSI75系列 LGDSI75-Q-K

瞬態(tài)電壓抑制器

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