Product Overview

The KF Series Aluminum Electrolytic Capacitors are designed for use in electronic equipment. They offer a high-temperature rating of 105 and a lifespan of 1000 hours. These standard capacitors feature a low profile (5mm height) and are suitable for various applications requiring reliable performance.

Product Attributes

• Brand: Cheng Xing ()
• Origin: Dongguan, Guangdong Province, China
• Material: Aluminum Electrolytic
• Certifications: Complies with JIS C-5101 (IEC 60384)

Technical Specifications

Dissipation Factor (tan ) at 120Hz, +20

Standard Ratings (D*L mm; RC (mA rms) at 105, 120Hz)

Usage Precautions

1. Circuit Design

• Use capacitors within the rated performance range as per product sample design specifications, avoiding high temperatures, overcurrent, overvoltage, reverse voltage, AC voltage, and rapid charge/discharge circuits.
• Select capacitors with a lifespan comparable to the machine's lifespan.
• For special machine performance requirements, consult R&D personnel for custom specifications.
• Ensure complete isolation between capacitor casing, terminals, and positive/negative poles, as well as the circuit.
• If the insulating sleeve is insufficient, do not use in applications requiring specific insulation performance.
• Avoid using in environments with direct contact with water, saltwater, oil, condensation, or in environments filled with harmful gases (sulfides, H2SO3, HNO3, CL2, ammonia, etc.).
• Do not expose to direct sunlight, ozone, UV radiation, or radioactive materials.
• Avoid environments with vibration and shock exceeding specified limits.
• When designing capacitor installation, ensure correct spacing between positive and negative terminals matching PCB hole spacing.
• Ensure sufficient space above the capacitor's safety valve.
• Avoid placing wiring or other components directly above the safety valve.
• Avoid placing other wiring on the PCB near the capacitor installation.
• Minimize the design and installation of heat-generating components around the capacitor and on the PCB.
• Consider temperature and frequency variations that may affect electrical performance.
• For double-sided PCBs, avoid installing capacitors over unnecessary holes and vias.
• Ensure current equalization when connecting two or more capacitors in parallel.
• Ensure voltage equalization when connecting two or more capacitors in series.

2. Component Installation

• Do not allow capacitor terminals to directly contact each other or cause short circuits with conductive materials.
• Confirm the environment at the installation location: avoid contact with water, oil, condensation, direct sunlight, ozone, UV, or radiation. Avoid environments with harmful gases or excessive vibration/shock.
• When inspecting or measuring electrical performance, do not reuse capacitors that have been removed from the machine or have been energized.
• Discharge capacitors with a regenerative voltage using a ~1K resistor.
• For long-term storage, apply voltage through a ~1K resistor.
• Confirm specifications (capacitance, rated voltage) and polarity before installation.
• Do not use dropped capacitors.
• Do not install deformed capacitors.
• Ensure capacitor terminal spacing matches PCB hole spacing.
• Avoid excessive force from the automatic insertion machine's manipulator.
• When soldering, ensure solder does not adhere to areas other than the terminals.
• Follow specified soldering conditions (temperature, time, number of times).
• Do not immerse the capacitor body in the solder solution.
• Avoid other products falling and hitting the capacitor during soldering.
• Ensure post-soldering processing does not cause mechanical stress (tilting, twisting, contact with other PCBs).
• Do not clean capacitors with cleaning agents. If cleaning is necessary, perform it within the specifications.
• When cleaning is required, manage cleaning agent contamination (conductivity, pH, specific gravity, moisture) and ensure thorough drying with hot air after cleaning to prevent residual cleaning fluid.
• Do not use halogen-containing fixing agents or resin coatings.
• When using fixing agents or coatings, ensure no solder residue or dirt remains between the PCB and capacitor. Dry thoroughly before application to prevent clogging of mounting holes.
• For bolt-type products, install vertically with the pressure valve facing upwards, or horizontally with the pressure valve or positive terminal facing upwards.

3. Assembly and Use

• Ensure capacitor terminals do not directly contact each other, and prevent short circuits caused by conductive materials.
• Confirm the environment at the installation location: avoid contact with water, oil, condensation, direct sunlight, ozone, UV, or radiation. Avoid environments with harmful gases or excessive vibration/shock.

4. Regular Inspection

• Capacitors used in industrial and commercial equipment require regular inspections, including visual checks and performance testing.

5. Emergency Situations

• If the capacitor's safety valve opens during assembly, cut off the main power or unplug the power cord.
• When the safety valve operates, hot gas exceeding 100C may be ejected. Keep face away. If gas enters eyes, rinse immediately with water. Do not taste capacitor electrolyte. If electrolyte contacts skin, wash with soap.

6. Fumigation Treatment

• When exporting electronic products containing capacitors overseas, be cautious of fumigation treatment with halides (e.g., potassium bromide), as it may cause corrosion due to halide ions.
• Ensure fumigant does not directly contact the product and that thorough drying is performed. Consult safety information if fumigant residue or insufficient drying is suspected.

7. Storage Conditions

• Store indoors at temperatures of 5-30C and humidity below 75%.
• Do not store in environments or conditions that are prohibited during assembly and use.

8. Disposal

• Dispose of waste capacitors by either:
• Making a hole or crushing the capacitor before incineration.
• Entrusting them to specialized waste recycling personnel if incineration is not performed.