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瞬态电压抑制器是一种能够在电路中保护电子设备免受电压过高的影响的元器件。其主要原理是基于二极管的正反向导通特性，在一定电压范围内能够迅速响应并消耗过高的电压脉冲，从而降低电路中的电压峰值，保护后续设备不被高压电击伤害。
瞬态电压抑制器的主要特点如下：
1. 可以对各种电压峰值和脉冲宽度的过电压进行抑制。
2. 可以快速响应，对瞬态过电压进行保护，保证了电路的安全性和稳定性。
3. 采用高灵敏度材料制作，具有低漏电流和低工作电压的特点。
4. 长期稳定可靠，使用寿命长。
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.
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.
Model:LGDSI75系列瞬态电压抑制器 LGDSI75-Q-K
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系列瞬态电压抑制器 LGDSI75-Q-K
LGDSI-75-Q-K :43-154 Vdc permanent; 165 Vdc / 1 s & 176 Vdc / 100 ms transients; 1.8kV / 50 μs spikes
The LGDSI-75 features 2 modes of operations as follow :
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.
Transient and spikes operation: The LGDSI-75 can sustain both:
- transient during 1s according or EN50155 requirements
- 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.
LGDSI75系列 LGDSI75-Q-K