Type 945U Polypropylene, DC Link Capacitors High Capacitance, Screw Terminal Case for Inverter Applications Type 945U uses advanced metalized film technology to achieve long-life, high reliability in DC link applications. High voltage and high current ratings packaged in screw-terminal cases allow for replacement of series-parallel banks of aluminum electrolytic capacitors in high ripple current application. Suited for wind and solar power inverters. Highlights E Advantages over Electrolytics - Exceptionally Low ESR - High Ripple Current - Non-Polar - High Voltage ratings - Dry Construction - no Electrolyte Capacitance Range 65 to 500 µF Capacitance Tolerance ±10% standard Rated Voltage 600 to 1000 Vdc Operating Temperature Range with Ripple Maximum rms Current -55 ºC to 85 ºC 47A @ 50 ºC Maximum rms Voltage 230 Vac Test Voltage between Terminal @ 25ºC 130% rated DC voltage for 60 s Test Voltage between Terminals & Case @ 25ºC 3 kVac @ 50/60 Hz for 60 s 2000 h @ 85 ºC, 125% rated voltage BS O Life Test LE T Specifications RoHS Compliant Dimensions 17.4 0.05 mm 31.75 ±0.25 mm Construction Details Case Material Aluminum with Black PVC Sleeve Resin Material Dry Resin UL94V-0 Terminal Material Tin Plated Brass ¼-28 x 0.437" Deep Internal Thread O 3.18 0.25 mm 1/4 - 28 x 0.50” Round Head Screws provided H ±1.57 mm 76.8 mm Min Shown with optional M12 Mounting Stud Lock Washer and Hex Nut provided 15.0 mm Min ¼-28 x 0.50" Round Head Screws Provided 1 CDE Cornell Dubilier • 1605Shown E. Rodney French Blvd. • New Bedford, with optional M12 Mounting Stud MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830 Lock Washer and Hex Nut Provided Type 945U Polypropylene, DC Link Capacitors High Capacitance, Screw Terminal Case for Inverter Applications Part Numbering System 945U 171 K 601 D Type Capacitance Tolerance 945U 171 = 170 µF K = ±10% 601 = 600 Vdc Ratings Voltage B I Diameter D mm Height H mm D = 76.8 B = 80.2 950 = 95 µF 751 = 750 Vdc C = 105.2 900 = 90 µF 901 = 900 Vdc E = 131.2 102 = 1000 Vdc M = 156.2 S Terminal Mounting I = ¼ - 28 Insert blank = No Stud S = M12 Stud NOTE: Other ratings, sizes and performance specifications are available. Contact us. Cap (µF) Rated Voltage (Vdc) H Height mm 100kHz ESR (mΩ) dV/dt (V/µs) Max Irms 10 kHz 50 ºC (A) 945U221K601DBI 220 600 80.2 4.0 30 47.0 945U301K601DCI 300 600 105.2 4.5 25 46.0 945U401K601DEI 400 600 131.2 5.0 26 44.0 945U501K601DMI 500 600 156.2 6.0 22 43.0 140 190 945U251K751DEI 250 945U321K751DMI 320 945U900K901DBI 90 945U131K901DCI 130 945U171K901DEI 170 945U221K901DMI 220 LE T 945U141K751DBI 945U191K751DCI E Catalog Part Number 750 80.2 4.5 30 44.0 750 105.2 5.0 25 43.0 750 131.2 6.0 37 42.0 750 156.2 6.5 30 41.0 900 80.2 5.0 42 42.0 900 105.2 5.5 35 41.0 900 131.2 6.5 43 40.0 900 156.2 7.5 36 38.0 65 1000 80.2 5.5 50 40.0 95 1000 105.2 6.0 40 39.0 945U131K102DEI 130 1000 131.2 7.0 60 38.0 945U161K102DMI 160 1000 156.2 8.0 50 37.0 BS O 945U650K102DBI 945U950K102DCI Typical Performance Curves Expected Lifetime vs Core Temperature and Applied DC Voltage 1.7 1.5 O Applied / Rated Voltage Ratio (Va/Vr) 1.6 1.4 50 ºC 1.3 60 ºC 1.2 70 ºC 1.1 85 ºC 1 0.9 0.8 100 1000 10000 100000 1000000 Expected Lifetime (h) 2 CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830 Type 945U Polypropylene, DC Link Capacitors High Capacitance, Screw Terminal Case for Inverter Applications Typical Performance Curves Ripple Current Ratings vs Temperature and Frequency 945U131K901DCI 45 25 ºC 50 ºC 40 70 ºC 30 25 20 85 ºC 15 10 5 0 10 100 1000 10000 1000000 Impedance vs Frequency 945U131K901DCI 100 10 1 BS O Impedance (Ω) 100000 LE T Frequency (Hz) E Ripple Current (Amps RMS) 35 0.1 0.01 0.001 100 O 12 1000 10000 Frequency (Hz) 100000 1000000 ESR vs Frequency and Temperature 945U131K901DCI 10 ESR (mΩ) 8 85 ºC 65 ºC 45 ºC 25 ºC 0 ºC -20 ºC -40 ºC 6 4 2 10 3 100 1000 Frequency (Hz) 10000 100000 CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830 Type 945U High Current Screw Terminal Capacitors O BS O LE T E 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 02740•Phone: (508)996-8561•Fax: (508)996-3830 www.cde.com