DZMJ 1200V metalized film 1850uF D.C.Filter capacitor

DZMJ 1200V metalized film 1850uF D.C.Filter capacitor, model 1850uF, is a high-quality electronic component designed for high voltage and high stability requirements. The capacitor adopts advanced metalized film technology to ensure extremely high capacitance stability and electrical performance. It can operate stably at a rated voltage of 1200V, providing solid filtering and energy storage support for various high-end electronic equipment. Its unique metalized film medium not only improves the voltage resistance level of the capacitor, but also greatly enhances the self-healing ability of the product, effectively resists partial discharge that may occur during use, and prolongs the service life of the capacitor. The large-capacity design of 1850uF enables DZMJ 1200V capacitors to show filtering effects in power filtering, inverters, DC power supplies, UPS systems, and industrial control circuits, effectively suppressing current fluctuations and ensuring the stability and reliability of the circuit. The capacitor also has good temperature characteristics and low loss characteristics and can maintain stable electrical parameters in a wide temperature range, reduce energy loss, and improve system efficiency. Its compact structure design combined with electrical performance makes the DZMJ 1200V 1850uF DC filter capacitor an indispensable key component in many precision electronic devices. Whether it is for professional users pursuing performance or industrial manufacturers focusing on equipment stability, DZMJ series capacitors are an ideal choice.

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DZMJ 1200V Metalized Film 1850uF D.C. Filter Capacitor - High Current Handling for Power Systems

Product Features

High Capacitance: Offers a substantial 1850µF capacitance rating, suitable for demanding DC filtering applications.

Robust Construction: Utilizes a metalized film dielectric, providing inherent stability and reliability under operational stress.

1200V D.C. Rating: Designed for direct current circuits operating up to 1200 Volts, accommodating high-voltage power electronics.

Low ESR & ESL: Features inherently low Equivalent Series Resistance (ESR) and Equivalent Series Inductance (ESL), crucial for efficient filtering and transient suppression.

Self-Healing Properties: The metalized film construction offers self-healing capabilities, mitigating the impact of localized dielectric breakdown events.

Product Description

This DZMJ 1200V metalized film DC filter capacitor, with a capacitance of 1850µF, is manufactured to meet stringent industrial standards for power electronics. Its construction incorporates advanced metalized film technology, ensuring dependable performance in high-voltage DC filtering and smoothing circuits. The capacitor is engineered for exceptional stability across varying operational temperatures and load conditions, contributing to the overall reliability of power conversion and control systems. Its design prioritizes efficient energy storage and discharge, vital for applications requiring rapid response and minimal ripple. This component is suitable for integration into systems requiring compliance with relevant electrical safety and performance certifications.

Application Areas

This product is suitable for the following scenarios:

Industrial motor drives and variable frequency drives (VFDs) requiring robust DC link filtering.

High-power solar inverters and wind energy conversion systems for grid integration.

Uninterruptible Power Supply (UPS) systems and large-scale power conditioning equipment.

Electric vehicle charging infrastructure and onboard power converters.

High-voltage test and measurement equipment.

Power factor correction circuits in industrial power distribution.

FAQ

1. What are the advantages of using metalized film capacitors for DC link filtering in VFD applications compared to electrolytic capacitors?

Metalized film capacitors, such as the DZMJ 1200V 1850µF model, offer superior longevity, higher ripple current handling capability, and better thermal stability than traditional electrolytic capacitors in DC link applications. Their self-healing property also contributes to a lower failure rate, enhancing system reliability in variable frequency drive (VFD) systems where frequent charge and discharge cycles occur.

2. How does the low ESR and ESL of this capacitor contribute to system performance in high-frequency switching applications?

The inherently low Equivalent Series Resistance (ESR) and Equivalent Series Inductance (ESL) of this metalized film capacitor are critical for minimizing power losses and reducing voltage overshoot in high-frequency switching environments. Lower ESR reduces heat dissipation, improving efficiency and component lifespan. Low ESL helps to suppress voltage spikes and ringing, protecting sensitive power semiconductor devices and ensuring cleaner power output in applications like inverters and DC-DC converters.

3. Can this 1200V DC filter capacitor be used in parallel configurations to achieve higher capacitance values for even more demanding industrial power filtering needs?

Yes, this 1200V DC filter capacitor can be configured in parallel to achieve higher total capacitance values for more demanding industrial power filtering needs. When connecting multiple capacitors in parallel, it is essential to ensure proper current sharing through the use of equalizing resistors or by carefully matching capacitor parameters to prevent uneven stress and prolong the service life of the entire capacitor bank.

Power Electronics & Filtering Capacitors

DZMJ 1200V Metallized Film 1850µF D.C. Filter Capacitor

Designed for DC filtering applications requiring metallized film technology. Supports power conversion, industrial drives, renewable energy systems, and UPS applications.

Product Overview

The DZMJ series delivers rated voltage of 1200 V with capacitance of 1850 µF using metallized film technology, supporting DC filtering applications requiring stable and reliable performance.

The capacitor construction uses metallized polypropylene film dielectric with self-healing properties. The metallized film technology provides stable capacitance characteristics and self-healing capability, ensuring reliable operation in DC filtering applications. The 1200 V voltage rating supports high-voltage DC power systems, while the 1850 µF capacitance provides adequate filtering capability for harmonic reduction and voltage stabilization.

Two configuration options are available to accommodate different system requirements: single cooled-isolated case design with sub-sections (all terminals isolated) and double cooled-isolated case design without sub-sections (all terminals isolated). This flexibility allows integration with various system grounding requirements and thermal management approaches.

Core Advantages

Metallized Film Technology

Metallized polypropylene film with self-healing properties provides stable capacitance characteristics and reliable operation in DC filtering applications.

High Voltage Rating

1200 V rated voltage supports high-voltage DC power systems, ensuring reliable filtering and voltage stabilization in demanding industrial applications.

Effective Filtering Capability

1850 µF capacitance provides adequate filtering for harmonic reduction and voltage stabilization, improving power quality and system performance.

Configurable Options

Single cooled and double cooled isolated case configurations available. All terminals isolated for flexible integration with various system grounding requirements.

Product Characteristics

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Dielectric & Core Material

Metallized polypropylene film with self-healing properties. Provides stable capacitance characteristics and reliable operation in DC filtering applications.

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Electrical Performance

1200 V rated voltage with 1850 µF capacitance. Metallized film construction ensures low loss and stable performance across operating temperature range.

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Self-Healing Capability

Metallized film construction isolates localized breakdown events, allowing continued operation after minor insulation failures and extending service life.

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Case Configurations

Isolated case designs with all terminals isolated. Single cooled configuration with sub-sections for fault isolation. Double cooled configuration without sub-sections for enhanced thermal management.

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Discharge & Safety

Internal discharge resistors reduce stored charge to safe levels within 60 seconds of disconnection, ensuring safety during maintenance and operation.

Application Scenarios

DC Power Systems

Provides DC filtering for high-voltage power systems, reducing harmonics and stabilizing voltage for reliable system operation.

Industrial Motor Drives

Supports industrial motor drive applications with effective filtering capability, improving power quality and motor performance.

Renewable Energy Systems

Enables stable DC bus operation for solar, wind, and other renewable energy inverters. Metallized film technology ensures long-term reliability.

UPS & Power Supplies

Provides filtering and voltage stabilization for UPS systems and power supplies, ensuring clean DC power delivery to sensitive electronic equipment.

Installation & Operation Notes

Voltage Rating Verification

Verify system voltage matches capacitor rating before installation. 1200 V rating supports high-voltage DC systems, but proper voltage matching is essential.

Cooling Requirements

Single cooled configurations require adequate airflow for heat dissipation. Double cooled configurations provide enhanced thermal management for higher power applications.

Mounting Orientation

Install with cooling ports oriented for optimal airflow. Single cooled configurations require horizontal mounting; double cooled configurations offer more installation flexibility.

Electrical Connections

Torque bus bar connections to specified values to minimize contact resistance. Loose connections cause localized heating and potential performance degradation.

Environmental Conditions

Indoor installation recommended. Ambient temperature range: -25°C to +85°C. Avoid corrosive gases, conductive dust, and excessive vibration.

Frequently Asked Questions

What is the difference between single cooled and double cooled configurations? +

Single cooled configuration uses one cooling system and includes sub-sections for internal fault isolation. Double cooled configuration provides enhanced thermal management with two independent cooling systems and no sub-sections, suitable for higher power applications requiring maximum heat dissipation capacity.

How does metallized film technology benefit capacitor performance? +

Metallized film technology provides stable capacitance characteristics and self-healing properties. When a localized breakdown occurs, the metallized layer vaporizes around the fault point, isolating the defect and allowing continued operation. This extends service life and improves reliability in DC filtering applications.

What is the expected service life under continuous operation? +

Service life is influenced by operating temperature, voltage stress, and duty cycle. Under rated conditions with proper cooling, the design life exceeds 80,000 hours. The self-healing capability and metallized film construction contribute to extended service intervals, with regular monitoring of capacitance and dissipation factor recommended to track degradation.

What applications are suitable for this capacitor? +

This capacitor is suitable for DC power systems, industrial motor drives, renewable energy systems, UPS systems, and power supplies requiring high-voltage DC filtering. The 1200 V rating and 1850 µF capacitance provide effective harmonic reduction and voltage stabilization across diverse industrial applications.

Why are all terminals isolated in these configurations? +

Isolated case configurations with all terminals isolated provide flexibility for floating or ungrounded system designs. This allows the capacitor to be used in various circuit topologies without grounding constraints, making it suitable for applications where the DC bus is not referenced to ground.

TYPE	Rated UN (V)	QN(kvar)	fN (Hz)	CN(μF)	IN (A)
TYPE	Rated UN (V)	QN(kvar)	fN (Hz)	CN(μF)	IN (A)
DCMJ 0.65-600S	650			600	0
DCMJ 0.86-1000S	860			1000	0
DCMJ 0.65-1200S	650			1200	0
DCMJ 0.9-1620S	900			1620	0
DCMJ 0.85-1650S	850			1650	0
DCMJ 0.9- 1850S	900			1850	0
DCMJ 1.2-1850S	1200			1850	0
DCMJ 0.85-2000S	850			2000	0
DCMJ 0.86- 2000S	860			2000	0
DCMJ 1.2- 5000	1200			5000	0
DCMJ 1.8- 5000	1800			5000	0

Wholesale DZMJ 1200V metalized film 1850uF D.C.Filter capacitor