GDHY C31 스너버 필름 커패시터 IGBT 스너버 보호 커패시터 유도 히터

[떠나자]

GDHY C31 snubber film capacitors IGBT snubber protection capacitor for induction heaters

The snubber film capacitors act like a low-pass filter in the circuit to absorb spikes. It is usually used in insulated gate bipolar transistors (IGBTs) to eliminate the peak voltage caused by the stray inductance of the busbar and avoid damage to the insulated gate bipolar transistors.

Brand

GDHY

Made

China

Reference standards

IEC61071 .GB/T17702

Operating Temperature Range

-40℃~+85℃ (Max. +105℃)

Capacitor range

0.0068uF~10uF

Rated Voltage

700VDC~3000VDC

Capacity Tolerance

±5%(J)；±10%(K)；

Dissipation factor

tgδ≤0.0005 C≦1uF f=10KHz at 20℃ tgδ≤0.0010 C≧1uF f=10KHz at 20℃

Insulation resistance

R•C≥3000s，at 100VDC，25℃±5℃，60s

Life expectancy

100000hrs at Un and 85℃

Withstand voltage

1.5Un DC/10s at 20℃

Flame Retardation

UL94V-0

INQUIRY

Description :

The structure of the IGBT snubber protection capacitor is characterized by double-sided metallized polypropylene film inner string structure, special internal design and end-face gold spray technology, so that the capacitor has low inductance, multiple lead designs such as tinned copper lugs, tinned copper wire leads,copper nut leads, can withstand higher ripple current, high DU/DV and High overpressure capability. Flame retardant plastic shell, epoxy resin encapsulation, in line with UL94V-0 standard. It is used for various IGBT buffer circuit surge absorption, various high frequency resonance circuits and induction heaters. It is also used in the output of Class-D audio amplifiers. A snubber network damps the ringing and overshoot due to fast switching of high currents. When the transistor you use to switch the current turns off, it generates a high-voltage spike that could damage the device.This spike will also generate electromagnetic interference (EMI). Be aware that EMI is caused by current in a loop. If your snubber network routes current in a large loop, it will increase rather than reduce EMI.

A snubber capacitor is designed to increase the circuit's performance, but it also increases the IGBT's ability to exploit high-speed switching capabilities more efficiently, potentially allowing for even high-frequency control. A high-performing capacitor is ideal for use in a high-performance, high-power circuit as it must be able to cope with its challenging system effects as well. 

IGBT snubber film capacitors with self healing are used in high voltage, high current and high pulse applications such as IGBT protection circuits, GTO snubber, snubber network, protection circuits in SMPS, energy conversion and control in power electronics, UPS, inverter, induction heaters, welding machines for IGBT snubber protection.   

Advantages :

● Plastic shell, flame-retardant epoxy encapsulation

● Tinned copper sheet extraction

● Resistance to high voltage, low dissipation factor

● Low ESL, low ESR, low temperature rise

● High pulse current, high dv/dt affordability

Application ：

IGBT buffer absorption circuit protection, IGBT buffer absorpation device. Widely used in power electronic equipment UPS, inverter, induction heating, electric welding machine and other equipment peak voltage, peak current absorption protection.

GDHY C31 snubber film capacitors IGBT snubber protection capacitor for induction heaters.pdf

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