Type SCM Single/Dual IGBT Snubber Capacitor Modules High Peak Current Snubber with Integrated Hyperfast Diode Use style SCM as a discharge restrictive de-coupling to protect dual IGBT modules from overvoltage, Figure 1. Style SCM 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 - Direct mount to the IGBT module - Low inductance - Low Loss - Hyperfast diodes integrated into package - Self healing - Other terminal spacing, capacitance values and voltage ratings, also available upon request. Specifications Capacitance Range 0.47 to 2.0 µF Capacitance Tolerance ±10% (K) standard, ±5% (J) optional Rated Voltage 600 to 1200 Vdc Operating Temperature Range -55 ºC to 70 ºC RoHS Compliant Dimensions Construction Details L Max Case Material Plastic UL94V-0 Resin Material Dry Resin UL94V-0 Terminal Material Tin Plated Copper W Max H Max C E 5.0 mm 16.0 mm R 1.2 mm 21.0 mm Wire: UL1015 AWG 18 200 mm Min 7.0 mm 9.0 mm 15.0 mm P CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830 Type SCM Single/Dual IGBT Snubber Capacitor Modules High Peak Current Snubber with Integrated Hyperfast Diode Part Numbering System SCM 105 K 122 H1 N 24 –F Series Type Designation Capacitance in pF Tolerance Code Voltage Diode Rating Polarity Lug Spacing RoHS Compliant Indicator 104=0.1 µF J = ±5% 601 = 600 Vdc N or P Type 24=24mm 105=1 µF K = ±10% 225=2.2 µF Ratings 122 = 1200 Vdc 28=28mm 202 = 2000 Vdc 29=29mm Note: Other ratings, sizes and performance specification available upon request. Contact us. Typical Application Diode Characteristics IGBT Module Catalog Part Number Cap S=Single Ic Vce (µF) (A) (V) Type D=Dual Ipk Ipk Vrrm If Trr surge rep (V) (A) (µs) (A) (A) Dimensions W L H P (mm) (mm) (mm) (mm) SCM474K601H7N29-F 0.47 S 200–300 600 N 600 30 0.040 300 70 43.82 55.88 34.04 29 SCM474K601H7P29-F 0.47 S 200–300 600 P 600 30 0.040 300 70 43.82 55.88 34.04 29 SCM105K601H7N24-F 1.00 D 100–200 600 N 600 30 0.040 300 70 38.10 47.63 31.75 24 SCM105K601H7P24-F 1.00 D 100–200 600 P 600 30 0.040 300 70 38.10 47.63 31.75 24 SCM105K601H5N29-F 1.00 S 300–400 600 N 600 50 0.045 500 100 46.36 56.52 38.10 29 SCM105K601H5P29-F 1.00 S 300–400 600 P 600 50 0.045 500 100 46.36 56.52 38.10 29 SCM155K601H7N24-F 1.50 D 200–300 600 N 600 30 0.040 300 70 34.29 55.88 30.48 24 SCM155K601H7P24-F 1.50 D 200–300 600 P 600 30 0.040 300 70 38.10 47.63 31.75 24 SCM205K601H5N24-F 2.00 D 300–400 600 N 600 50 0.045 500 100 43.82 55.88 34.04 24 SCM205K601H5P24-F 2.00 D 300–400 600 P 600 50 0.045 500 100 43.82 55.88 34.04 24 SCM205K601H2N29-F 2.00 S 400–600 600 N 600 100 0.050 1000 200 46.36 56.52 38.10 29 SCM205K601H2P29-F 2.00 S 400–600 600 P 600 100 0.050 1000 200 46.36 56.52 38.10 29 SCM474K122H8N29-F 0.47 S 200–300 1200 N 1200 30 0.065 300 60 34.29 55.88 30.48 29 SCM474K122H8P29-F 0.47 S 200–300 1200 P 1200 30 0.065 300 60 38.10 47.63 31.75 29 SCM105K122H8N24-F 1.00 D 100–200 1200 N 1200 30 0.065 300 60 44.45 63.50 37.34 24 SCM105K122H8P24-F 1.00 D 100–200 1200 P 1200 30 0.065 300 60 44.45 63.50 37.34 24 SCM105K122H4N29-F 1.00 S 300–400 1200 N 1200 50 0.085 500 100 43.82 55.88 34.04 29 SCM105K122H4P29-F 1.00 S 300–400 1200 P 1200 50 0.085 500 100 46.36 56.52 38.10 29 SCM155K122H8N24-F 1.50 D 200–300 1200 N 1200 30 0.065 300 60 44.45 63.50 37.34 24 SCM155K122H8P24-F 1.50 D 200–300 1200 P 1200 30 0.065 300 60 46.36 56.52 38.10 24 SCM205K122H4N24-F 2.00 D 300–400 1200 N 1200 50 0.065 500 100 53.98 63.50 43.18 24 SCM205K122H4P24-F 2.00 D 300–400 1200 P 1200 50 0.065 500 100 53.98 63.50 43.18 24 SCM205K122H1N29-F 2.00 S 400–600 1200 N 1200 100 0.090 1000 200 53.98 63.50 43.18 29 SCM205K122H1P29-F 2.00 S 400–600 1200 P 1200 100 0.090 1000 200 53.98 63.50 43.18 29 Ipk surge at 25 °C and Ipk repetitive at 25 °C and 20 kHz. CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830 Type SCM Single/Dual IGBT Snubber Capacitor Modules High Peak Current Snubber with Integrated Hyperfast Diode Typical Applications 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. • 1 or 2 wire taps for connecting external resistor • Flame resistant case and epoxy, meets UL 94V0 • Other terminal pitches and capacitance values available. Figure 1 Style SCM Discharge restrictive decoupling used to protect dual IGBT modules RCD Clamp The function of this snubber is similar to a clamp, Figure 2. At turn-off, the snubber diode is forward biased and the snubber is activated. The energy trapped in the stray inductance is absorbed by the snubber capacitor. During turn-on the snubber caps that were fully charged to bus voltage have a discharge path through the forward biased free-wheel diode, the IGBT, and the snubber resistors. This reduces the reverse recovery voltage transient. Figure 2 Style SCM “P” type and “N” type used as a clamp to protect an inverter using two “single” IGBT modules Notice and Disclaimer: All product drawings, descriptions, specifications, statements, information and data (collectively, the “Information”) in this datasheet or other publication are subject to change. The customer is responsible for checking, confirming and verifying the extent to which the Information contained in this datasheet or other publication is applicable to an order at the time the order is placed. All Information given herein is believed to be accurate and reliable, but it is presented without any guarantee, warranty, representation or responsibility of any kind, expressed or implied. Statements of suitability for certain applications are based on the knowledge that the Cornell Dubilier company providing such statements (“Cornell Dubilier”) has of operating conditions that such Cornell Dubilier company regards as typical for such applications, but are not intended to constitute any guarantee, warranty or representation regarding any such matter – and Cornell Dubilier specifically and expressly disclaims any guarantee, warranty or representation concerning the suitability for a specific customer application, use, storage, transportation, or operating environment. The Information is intended for use only by customers who have the requisite experience and capability to determine the correct products for their application. Any technical advice inferred from this Information or otherwise provided by Cornell Dubilier with reference to the use of any Cornell Dubilier products is given gratis (unless otherwise specified by Cornell Dubilier), and Cornell Dubilier assumes no obligation or liability for the advice given or results obtained. Although Cornell Dubilier strives to apply the most stringent quality and safety standards regarding the design and manufacturing of its products, in light of the current state of the art, isolated component failures may still occur. Accordingly, customer applications which require a high degree of reliability or safety should employ suitable designs or other safeguards (such as installation of protective circuitry or redundancies or other appropriate protective measures) in order to ensure that the failure of an electrical component does not result in a risk of personal injury or property damage. Although all product-related warnings, cautions and notes must be observed, the customer should not assume that all safety measures are indicated in such warnings, cautions and notes, or that other safety measures may not be required. CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830