Power Capacitors

Product Details:

MAIN APPLICATION

IGBT protection circuits, Snubber networks, Energy conversion and control in power electronics, Protection circuits in SMPS.

CONSTRUCTION

Polypropylene film, aluminium foil plus metallised polypropylene film wound in a series connection

TEMPERATURE RANGE -25 oC to 85 oC
APPLICABLE SPECIFICATION IEC 384-17,
CAPACITANCE TOLERANCE ±5% , ±10%

VOLTAGE PROOF

Between terminals: 1.6 times of rated voltage for 2 seconds.

INSULATION RESISTANCE (at 25 C at a test voltage of 500 VDC applied for 1 minute)
C ≤ 0 .33 µF C ≥ 0.33 µF

≥1 00,000 MΩ ≥20, 000 MΩ

Voltage - 1000VDC, 1250VDC, 1500VDC, 2000VDC

Value - 0.1uF - 3uF

Why Use Snubber Capacitors?

With the evolution of power technology, new higher speed Insulated Gate Bipolar Transistors (IGBTs) make it possible for high power converters to operate up to 10 kHz or more. IGBTs are replacing the slower Darlington transistors, simplifying circuit design and reducing cost. IGBT power modules are now being designed into AC and DC motor drive inverters, uninterruptible power systems, electric vehicles and alternate energy production systems. Power systems containing IGBTs must be designed so the transient voltages caused by the hi di/dt that occurs at gate turn off is minimized. Left uncontrolled, this transient voltage can exceed the blocking voltage rating of the IGBT and cause it to fail. To reduce the transient voltage, either di/dt or the parasitic DC bus inductance of the power circuit must be reduced. This is best achieved by decoupling the parasitic bus inductance using a non-inductive wound film capacitor mounted as near as possible to the IGBT module terminals. Snubber capacitors, constructed of polypropylene film dielectric and aluminium foil plus metallised polypropylene film, are the optimal capacitor design for IGBT applications. While film/foil capacitors are often used because of their superior current carrying capability, they fail in a short circuit mode, which may cause damage to the IGBT module. El-Ci-Ar’s snubber capacitors combine high current carrying capability with low inductance, low dielectric losses and capacitance stability across a wide frequency range. They offer the self-healing property of metallized film (not failing in a short circuit mode) with the high peak current carrying capability (dv/dt) of film/foil construction.

NOTE : Price Range may vary from Rs 45 to Rs 200 as per the specification variations .

Additional Information:

• Item Code: MPF-71
• Production Capacity: 10000
• Delivery Time: 4 weeks
• Packaging Details: 100 nos

APPLICATION:
The DC Link capacitors from DCM-MT series are suitable for DC Link and DC Filter applications in Power converters for: Welding Equipment. (e.g. Inverter Welding Machine) , Induction Heating Equipment , Traction and industrial drives, Solar power inverters, Electric vehicle inverters
FEATURES:

Construction:
1) High Current Capability , Low ESR
2) Customised Terminations
3) Dry construction, PU resin filled.
4) High Life expectancy, very low Failure Rate
5) Flame retardant UL94 - V0, ROHS compliant
Basic SpecificationCapacitance Range - 20 µF to 265uF
Rated voltage (VDC) - 700 VDC to 1800 VDC
Capacitance Tolerance -   ±5% (J), ±10% (K)
Dielectric - Polypropylene Film
Electrodes - Vacuum deposited Zinc Aluminum Heavy Edge
Casing - Polyester tape wrapped
Encapsulation - Thermosetting Resin
Terminals - Brass Stud
Dissipation factor (Tan d) ≤ 0.001 at 100Hz
Test voltage between terminals (Vtt ) - 1.5 X rated voltage for 10 sec.
Withstanding AC Voltage between terminals & case(Vtc) - 3000 VAC for 10 sec.
Climatic category - 40/105/56

Additional Information:

• Item Code: DCM-MT
• Minimum Order Quantity: 10 Piece
• Production Capacity: 10000
• Delivery Time: 3 weeks
• Packaging Details: 10 per box

APPLICATION:
DC Link and DC Filter applications in Power converters for
1) Uninterruptible power supplies
2) Wind power inverters
3) Solar power inverters
4) Traction and industrial drives



FEATURES:
1) High Current Capability
2) Low Profile, Low ESR
3) Self-healing
4) Aluminium CAN, dry construction, resin filled
5) High Life expectancy, very low Failure Rate
6) Flame retardant UL94 - V0, ROHS compliant

REFERENCE STANDARD: IEC 60831-1

BASIC SPECIFICATIONS:
Capacitance Range 45uF to 990 µF
Rated voltage (DC) 700VDC to 2200 VDC
Capacitance Tolerance ±5% (J), ±10% (K)
Nominal Size (D x H) 53 x 90 mm
Dielectric Polypropylene Film
Electrodes Vacuum deposited Zinc Aluminum Heavy edge
Casing Aluminium CAN
Encapsulation Thermosetting Resin
Terminals M6 screw type bolt
Dissipation factor (Tan d) ≤ 0.0010 at 100Hz
Test voltage between terminals (Vtt ) 1.5 X rated voltage for 10 sec.
Withstanding DC Voltage between terminals & case(Vtc) 3000 VAC for 10 sec.
Climatic category 40/105/56

Additional Information:

• Item Code: DCM-MC
• Minimum Order Quantity: 10 Piece
• Production Capacity: 1000/week
• Delivery Time: 3 weeks
• Packaging Details: carton

Product Details:

Construction:

MKP11 Safety Capacitors are wound with Metallized
polypropylene film as dielectric and tinned
copper wire and FR grade epoxy coating.

Features:

· Self healing + Safety properties
· Non - inductive construction
· Low Dissipation Factor and high
Insulation Resistance
· Hum Free functioning

Application:

· In step- type, fan speed regulators

Specification:

Reference Standard IEC 60384-16
Operating Temperature -40°C to + 85°C
Capacitance Range 1uF, 2.2uF, & 3.3uF
Capacitance Tolerance ±5% (J), ±10% (K)
Rated Voltage Vr 250VAC
Dissipation Factor 0.1% max at 1Khz, 20°C

Dielectric Strength 1.60 x Vr for 2 sec
Insulation Resistance > 5,000 sec at 100Vdc and 25°C
Marking El-Ci-Ar Logo, MKP11, C Value,
Tolerance, Rated Voltage, Batch
Fire Retardancy Fire Retardent Encapsulation

NOTE : Price Range may vary from Rs 3.50 to Rs 8 as per the specification variations .

Additional Information:

• Production Capacity: 1M
• Delivery Time: 2 weeks
• Packaging Details: 1000 nos