E12. E93-104. M50
Electronicon E12. E93-104. M50 1uF 3000V high-voltage snubber capacitor for high-power IGBT modules.
Product Overview
Description
The E12. E93-104. M50 provides high capacitance and voltage rating for demanding snubber applications.
Designed for high-power IGBT modules and applications requiring significant energy absorption.
Features low inductance and high peak current capability for effective protection of power semiconductors.
Product Series
E
Primary Application
High-power IGBT protection
Key Features
- High voltage rating 3000V DC
- High capacitance 1uF
- High peak current 4000A
- dv/dt capability 4000 V/us
- Low inductance <25nH
- Self-healing properties
- High energy absorption
Specifications
| Capacitance | 1uF |
|---|---|
| VoltageRating | 3000V DC |
| dv/dt | 4000 V/us |
| PeakCurrent | 4000A |
| Inductance | <25nH |
| TemperatureRange | -40C to +85C |
| Lifetime | 100,000 hours @ 70C |
| Mounting | Axial Leads |
| Dimensions | 42mm x 65mm |
Applications
High-power IGBT protection
Electronic system design
Traction inverters
Electronic system design
Wind converters
Power conversion and supply
Medium voltage drives
Motor drive and control systems
Soft-start circuits
Electronic system design
Crowbar protection
Electronic system design
FAE Expert Insights
"The E12. E93-104. M50 is my recommendation for high-power applications using 1700V IGBTs or multiple 1200V devices in series. The 3000V rating provides excellent margin for 1700V devices, and the 1uF capacitance handles higher energy from large IGBT modules. I've used this capacitor in traction inverter applications where reliability is critical. The 4000A peak current rating accommodates the high currents from large IGBT modules (1000A+). The axial lead design allows flexible mounting configurations. For a typical 1MW traction inverter, I use one E12. E93-104. M50 per phase leg in RCD snubber configuration. The capacitor's self-healing properties are valuable in the harsh environment of traction applications. This is a robust, high-reliability component for demanding applications."
High voltage and capacitance for high-power IGBT protection
— Michael Schneider, BeiLuo
Frequently Asked Questions
What IGBT modules are suitable for use with E12. E93-104. M50?
The E12. E93-104. M50 is suitable for high-power IGBT modules including: 1) 1700V class - Infineon FF1400R17IP4 (1400A), FF600R17ME4 (600A), Mitsubishi CM1400HC-66H (1400A), 2) 1200V class - Large modules like Infineon FF1400R12IP4, FF600R12ME4 when higher margin is desired, 3) Multiple parallel modules - when paralleling 2-3 300-400A modules for high current, 4) SiC modules - high-voltage SiC MOSFETs in 1700V+ class. The 3000V rating provides margin for 1700V devices, and the 1uF capacitance handles the energy from large modules. The 4000A peak current accommodates the high switching currents. For 3300V IGBT modules, consider using two capacitors in series with balancing.
Select based on your IGBT voltage and current ratings; the E12. E93-104. M50 is ideal for 1700V class modules.
How do I design an RCD snubber with the E12. E93-104. M50?
For an RCD snubber using E12. E93-104. M50: 1) Capacitor - 1uF provides energy storage, 2) Diode - select fast recovery diode with voltage rating >1.5x DC bus and current >IGBT current, for 1700V IGBT use 1200V 30A diode like RHRP30120, 3) Resistor - R = sqrt(L/C) where L is stray inductance, for 200nH: R = sqrt(200nH/1uF) = 14 ohms, use 10-15 ohms, 4) Power - P = 0.5 x C x V x V x f, for 1500V and 2kHz: P = 0.5 x 1uF x 1500 x 1500 x 2kHz = 2.25W, use 10W resistor. The diode allows fast charging during turn-off, resistor provides damping and slow discharge. Mount components close to IGBT with minimal lead length.
Follow RCD snubber design guidelines or consult our FAE team for application-specific recommendations.
Can the E12. E93-104. M50 be used in series for higher voltage?
Yes, the E12. E93-104. M50 can be used in series for higher voltage applications, such as 3300V or 6500V systems. When connecting snubber capacitors in series: 1) Use voltage balancing resistors (100kOhm-1MOhm) across each capacitor to ensure equal voltage distribution, 2) Total capacitance is reduced: Ctotal = C/n (two in series = 0.5uF), 3) Voltage ratings add: Vtotal = n x Vrated (two in series = 6000V), 4) dv/dt capability remains the same per capacitor. For 3300V IGBT applications, two E12. E93-104. M50 in series provide 0.5uF at 6000V. The balancing resistors add power dissipation (V x V / R) that must be considered. Ensure proper mechanical spacing and mounting for series configurations.
Use series connection for very high voltage applications; consult our FAE team for design assistance.
What is the energy absorption capability of the E12. E93-104. M50?
The energy storage capability of the E12. E93-104. M50 is E = 0.5 x C x V x V. At rated voltage (3000V): E = 0.5 x 1uF x 3000 x 3000 = 4.5 Joules. At typical operating voltage (80% derating, 2400V): E = 0.5 x 1uF x 2400 x 2400 = 2.9 Joules. This energy is absorbed during IGBT turn-off when stray inductance causes voltage overshoot. For comparison, 200nH stray inductance with 500A current stores E = 0.5 x L x I x I = 0.5 x 200nH x 500 x 500 = 25 mJ. The capacitor can handle this energy many times per switching cycle. The high energy capability makes this capacitor suitable for large IGBT modules and high-current applications.
Calculate the energy from your stray inductance and switching current to verify adequate margin.
How does temperature affect the E12. E93-104. M50 performance?
Temperature affects the E12. E93-104. M50 in several ways: 1) Capacitance decreases slightly with temperature (typically -2% at 85C), 2) ESR increases at low temperatures, 3) Maximum dv/dt and peak current ratings apply at rated temperature, 4) Lifetime decreases at high temperature per Arrhenius equation. The capacitor is rated for -40C to +85C ambient. For reliable operation, keep hot spot temperature below 70C. High pulse currents in snubber applications can cause internal heating. Ensure adequate spacing and ventilation around the capacitor. At very low temperatures (-40C), ESR increases but this is typically not a concern for snubber applications with pulse operation. The self-healing properties remain effective across the temperature range.
Design for moderate operating temperatures and provide adequate cooling for reliable long-term operation.
What are the physical mounting requirements for the E12. E93-104. M50?
The E12. E93-104. M50 has axial leads and requires proper mounting for reliable operation: 1) Lead diameter - typically 1.0-1.2mm, use appropriate holes in PCB or terminals, 2) Mounting orientation - can be mounted horizontally or vertically, ensure adequate clearance to case, 3) Spacing - maintain at least 10mm clearance to other components for voltage isolation and heat dissipation, 4) Support - for vertical mounting, use a clip or bracket to support the capacitor body and reduce stress on leads, 5) Lead length - keep leads as short as possible for low inductance, but allow for thermal expansion, 6) Connection - use proper crimp terminals or soldering for reliable electrical connection. The capacitor body should not contact other components or the enclosure. Ensure adequate ventilation around the capacitor.
Follow standard axial capacitor mounting practices with adequate support and spacing.