| Customization: | Available |
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| Certification: | CCC, COP, ISO9001, CE, E-Mark, RoHS, TS16949 |
| Standard Component: | Standard Component |
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| Temperature range | -40ºC~+85ºC/+105ºC |
| Capacitance | 0.1~4.7uF |
| Nominal voltage | 600~3000V.DC(50kHz) |
| Capacitance tolerance | ±5%(J),±10%(K) |
| Fire resistance | UL94V-0 |
| Product details | |
| Product name | IGBT Snubber capacitor |
| Type | High Voltage Capacitor |
| Place of Origin | Guangdong, China |
| Brand Name | SMILER |
| Supplier Type | Original manufacturer, ODM |
| Capacitance | 2.0UF |
| Media Available | Datasheet, Photo |
| Tolerance | 5% |
| Package Type | Through Hole |
| Rated Voltage | 1200VDC |
| Operating Temperature | -40°c ~ + 105°c |
| Voltage - Rated | 1200VDC |
| ESR (Equivalent Series Resistance) | ≤2mΩ |
| Voltage - Breakdown | 700VDC~3000VDC |
| Capacitance Range | ±5%(J) ± 10%(K) |
| Applications | Power electric equipment absorption protection |
The snubber capacitors acts as a low-pass filter in a circuit, absorbing the peak voltage. Usually used in insulated gate bipolar transistors (IGBT), to eliminate the spike voltage caused by the stray inductance of the bus, to avoid the damage of insulated gate bipolar transistors.
What is a buffer capacitor?
The buffer capacitor is a capacitor connected to the high current switch node to reduce the parasitic inductance of the electrical wiring. Parasitic inductance will cause large surge when the switch is turned off (cutting off the current). When the surge exceeds the rated value of components, it may even cause product damage.
To effectively reduce the wiring inductance, the component pins in the circuit close to the red ellipse of the circuit diagram should be connected to the capacitors.
Capacitance characteristics:
Single metal buffer capacitor and bimetal buffer capacitor are available.
Capacitor application:
Capacitance parameters:
Operating temperature range: 40/85/21
Capacity range: 1 μ F-8μ F
Rated voltage: 1200V DC?-4000V. DC
Capacitance accuracy: ± 5% (J); ±10%(K)
Dissipation coefficient: TG δ ≤0.001f = 1KHz
Insulation resistance: RS *c ≥ 5000S (under 20 ºC 100v.dc 60s)
Life expectancy: 100000h (UN; Θ Hot spot ≤ 85 ° C)
In circuits that drive high inductive loads, such as motors or transformers, large transient power spikes may occur due to sudden discharge of energy stored in inductive loads, which may damage components and contacts. Applying a capacitor can limit or buffer the voltage spikes in the circuit, thus making the operation safer and the circuit more reliable. In lower power circuits, buffering technology can be used to prevent unwanted radio frequency interference (RFI) from spikes, which will cause abnormal behavior in the circuit and make it difficult to obtain product certification and approval.
The buffer capacitor not only needs to meet the conditions of the connection position, but also needs to evaluate the characteristics of the capacitor structure and materials before use.
Better surge suppression effect can be obtained by connecting ceramic capacitors with large capacity capacitors for buffer and pins close to SiC MOSFET. However, slightly different conditions such as the installation position of the capacitor and the series / parallel combination of the capacitor may affect the surge waveform, so it is necessary to actually install it on the application equipment for effect verification.
Buffer capacitors are used in electronic circuits to decouple two circuits with different ground potentials. Applications include: computers, industrial control systems and consumer electronics.
These capacitors are ideal for automotive, electrical and industrial applications. The polypropylene case of these capacitors provides them with a high level of insulation and excellent resistance to oil, gasoline and other chemicals. They are designed for long life and can be used wherever you need them. Depending on the strength you need, there are different sizes to choose from.
These capacitors help smooth and stabilize the power flow provided by your car's alternator. For example, an alternator operating in the range of 10-12v will only provide sufficient voltage during peak load demand. Without diode capacitance, these spikes can damage sensitive electrical equipment such as telephones and laptops.
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