Product Overview

This specification applies to aluminum electrolytic capacitors used in electronic equipment. These capacitors are designed for high-frequency applications with low impedance and a long operational life of 2000-3000 hours at 105. They are suitable for various electronic devices requiring stable performance across a wide temperature range.

Product Attributes

• Brand: Chengx ()
• Origin: Dongguan, China
• Material: Aluminum electrolytic
• Color: Purple body with white lettering ()
• Certifications: JIS C-5101 (IEC 60384)

Technical Specifications

Usage Precautions

1. Circuit Design

• Ensure operation within rated performance limits, avoiding high temperatures, overcurrent, overvoltage, reverse voltage, AC voltage, and rapid charge/discharge cycles.
• Select capacitors with a lifespan compatible with the machine's expected life.
• Isolate capacitor casing and terminals from positive/negative and circuit grounds.
• Avoid use where casing insulation is insufficient.
• Do not use in environments with direct contact with water, saltwater, oil, condensation, or harmful gases (sulfides, H2SO3, HNO3, CL2, ammonia).
• Avoid exposure to direct sunlight, O3, UV, or radioactive substances.
• Ensure vibration and shock conditions do not exceed specified limits.
• When designing installation, ensure correct terminal spacing, adequate space above the safety vent, avoid placing components near the vent, and minimize heat-generating components around the capacitor.
• Temperature and frequency variations should not affect electrical performance.
• For double-sided PCBs, avoid mounting over unnecessary holes.
• Ensure current and voltage balance in parallel and series capacitor connections, respectively.

2. Component Installation

• Do not allow terminals to directly contact each other or cause short circuits.
• Do not use capacitors that have been dropped or have deformed terminals.
• Ensure terminals align with PCB holes.
• Avoid excessive force from automatic insertion machines.
• When soldering, ensure solder does not adhere to areas other than terminals.
• Adhere to specified soldering conditions (temperature, time, number of times).
• Do not immerse the capacitor body in solder solution.
• Prevent other components from falling onto the capacitor during soldering.
• Discharge capacitors with regenerated voltage using a ~1K resistor.
• Discharge long-term stored capacitors with a ~1K resistor under pressure.
• Confirm specifications (capacitance, voltage) and polarity before installation.

3. Assembly and Use

• Ensure the installation environment is free from water, oil, condensation, direct sunlight, O3, UV, radioactive rays, and harmful gases.
• Avoid vibration and shock exceeding specified limits.

4. Regular Inspection

• For industrial use, capacitors require regular inspection, including visual checks and performance testing.

5. Accidental Situations

• If the safety vent opens during assembly, cut off the main power or unplug the power source.
• Keep face away from the vent when it operates due to high-temperature gas ejection (>100).
• In case of gas contact with eyes, rinse immediately with water. Do not ingest electrolyte. Wash skin with soap if electrolyte splashes.

6. Fumigation Treatment

• When exporting products containing capacitors overseas, be cautious of potential corrosion from halide fumigation (e.g., potassium bromide).
• Ensure fumigant does not directly contact electronic products and allow for thorough drying.
• Consult safety information if fumigant residue or insufficient drying is suspected.

7. Storage Conditions

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

8. Disposal

• Dispose of capacitors by making a hole or crushing them before incineration, or by handing them over to specialized waste recyclers if incineration is not performed.

Part Number System Explanation

The part number system is structured to encode various specifications of the capacitor. Key elements include tolerance code, series, capacitance, voltage, case size, sleeve material, color, shape, and special features.

Features

• Low Impedance for high frequency.
• Life time: 2000~3000 hours at 105.

Specifications

Item | Specification
Operation Temperature Range | -40 to +105
Rated Working Voltage Range | 6.3 to 100V
Nominal Capacitance Range | 2.2 to 4700F
Capacitance Tolerance | 20%(120Hz,+20)
Leakage Current | L0.01CV or 3(A) Whichever is greater (measured after 2 minutes application of rated working voltage at +20 )
Tan (max) at 120Hz | See table below
Impedance ratio max. at 120 HZ | See table below
Load Life Test | Duration: 1000 hours, Ambient temp.: +105, Applied voltage: Rated DC working voltage with rated ripple current. Post test requirements at +20: Leakage current Initial specified value, Cap.change 25% of initial measured value, Tan 150% of initial specified value.

Tan (max) at 120Hz

Impedance Ratio (Z-25/Z+20)

Case Size Table

Ripple Current Multiplier

Electrical Characteristics Details

Item | Measuring Conditions | Specification
Measuring frequency | 120 12Hz | - Measuring voltage | 0.5Vrms + 0.5~2.0VDC | - Measurement circuit | R :1000 100 | - Capacitance | Thermal balance after 2 hours | 20% of the initial measured value. Dissipation factor | Thermal balance after 2 hours | See specification of this series. Leakage current | Measured after 1~2 minutes application of the DC rated working voltage through the 1000 resistor at 20 | Under 125 for 10 times specification values, 105 for 8 times the specification values, 85 for 5 times the specification values.
Temperature characteristics | STEP 1: 30min at +20, TEST METHOD: Measure capacitance and impedance (Z,120Hz 10%).
STEP 2: 120min at -40, TEST METHOD: Measure impedance (Zr) after thermal balance.
STEP 3: 30min at +20, TEST METHOD: Measure capacitance and leakage current after thermal balance.
STEP 4: 120min at +105, TEST METHOD: Measure impedance (Zr) after thermal balance. | Capacitance change: within 20% of the initial measured value. Impedance ratio (Zr/Z20) less than specified value.
Surge test | Rated surge voltage shall be applied (swich on) for 305 seconds | -

Mechanical Characteristics