SCMT474K601H7N28-F CDE | Alldatasheet

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CDE Cornell Dubilier•1605 E. Rodney French Blvd•New Bedford, MA 02744•Phone: (508)996-8561•Fax: (508)996-3830•www.cde.com Type SCMT Single/Dual IGBT Snubber Capacitor Modules

Applications

Use style SCMT as a discharge restrictive de-coupling to protect dual IGBT modules from overvoltage, Figure 1. Style SCMT may also be used as an “N” or “P” type snubber component for a clamp snubber where single IGBT modules are used, Figure 2. Highlights

  • Mount directly to the IGBT module • 1 or 2 wire taps for connecting external resistor
  • Low inductance • Flame resistant case and epoxy, meets UL 94VO
  • Low Loss • Other terminal pitches and capacitance values available.
  • Hyperfast diodes integrated into • RoHS Compliant package Discharge Restrictive De-coupling The circuit in Figure 1 operates on the same principles as the de-coupling capacitor, but only during turn-off switching. As the IGBT turns off, energy trapped in the loop inductance is transferred to the capacitor. The diode blocks oscillations from occurring and excess charge on the capacitor is discharged through the external resistor. RCD Clamp The function of this snubber is similar to a clamp,

Figure 2. At turn-off, the snubber diode is forward

Type SCMT Single/Dual IGBT Snubber Capacitor Modules Ratings RoHS Compliant Typical Application Diode Characteristics IGBT Module Dimensions Ipk Ipk Catalog Cap S=Single Ic Vce Vrrm If Trr surge Rep. W L H P Part Number (µF) D=Dual (A) (V) Type (V) (A) (µs) (A) (A) (in) (mm) (in) (mm) (in) (mm) (in) (mm) lpk surge at 25 ºC and lpk repetitive at 25 ºC and 20 kHz. [*] Specify “N’ or “P” Type Part Numbering System SCMT 105 K 122 H1 N 28 –F Type Cap. Tol. Voltage Diode Polarity Pitch RoHS 105 = 1.0 µF K = 10% 601 = 600V See ratings “N” or “P” 25 = 25mm –F = RoHS J = 5% 122 = 1200V table for 28 = 28mm Compliant CDE Cornell Dubilier 1605 E. Rodney French Blvd New Bedford, MA 02744 Phone: (508)996-8561 Fax: (508)996-3830 www.cde.com