Product Overview

The SAMXON RT Series Aluminum Electrolytic Capacitors are polar, foil-type capacitors designed for use in electronic equipment. These capacitors meet IEC60384 standards and are constructed with a single-ended design, featuring an aluminum case impregnated with electrolyte and sealed with end seal rubber, finished with a PET vinyl sleeve. They are suitable for various electronic applications requiring reliable performance.

Product Attributes

• Brand: SAMXON
• Series: RT Series
• Construction Type: Single ended, foil type
• Case Material: Aluminum
• Sleeve Material: PET
• Sealing Material: Rubber
• Lead Wire Material: Tinned CP wire (Pb Free)
• Terminal Material: Aluminum wire
• Separator Material: Electrolyte paper
• Origin: MAN YUE ELECTRONICS COMPANY LIMITED

Technical Specifications

General Characteristics

Application Guidelines

1. Circuit Design

• Operating Temperature and Frequency: Electrical parameters vary with temperature and frequency. Higher temperatures increase leakage current and capacitance, decrease ESR. Lower temperatures decrease leakage current and capacitance, increase ESR. Higher frequencies decrease capacitance and impedance, increase tan. Lower frequencies increase ESR, leading to ripple current generated heat.
• Common Application Conditions to Avoid: Reverse Voltage, repeating charge/discharge applications, over voltage, and exceeding maximum specified ripple current. Pulse current should not exceed 10 times the rated ripple current at 120Hz.
• Using Two or More Capacitors in Series or Parallel: Parallel connections require careful wiring to balance ripple current loads. Series connections require voltage divider shunt resistors to prevent voltage imbalances due to leakage current differences.
• Capacitor Mounting Considerations: Avoid wiring patterns between the capacitor and the circuit board. Ensure proper hole spacing to avoid lead stress. Provide clearance for pressure relief vents. Avoid locating high voltage wiring above pressure relief vents. Avoid circuit board runs under the capacitor. For screw terminal capacitors, do not orient with the screw terminal side facing downwards.
• Electrical Isolation: Ensure complete isolation between cathode and case (except for axially leaded B types), anode terminal and other circuit paths, and between extra mounting terminals and other terminals.
• Capacitor Sleeve: The vinyl sleeve is for marking and identification, not electrical insulation. It may split or crack when exposed to solvents like toluene or xylene at high temperatures.

2. Capacitor Handling Techniques

• Considerations Before Using: Capacitors have a finite life. Avoid reusing capacitors from used equipment. Transient recovery voltage may require discharge. Long storage may increase leakage current, correctable by applying rated voltage with a resistor. Avoid using dropped, dented, or crushed capacitors.
• Capacitor Insertion: Verify capacitance, rated voltage, and polarity before insertion. Ensure correct hole spacing to avoid terminal stress. Prevent auto insertion equipment from stressing leads at the seal.
• Manual Soldering: Observe temperature and time specifications. Avoid stress on leads where they enter the seal. Avoid excessive stress during removal/reinsertion. Do not touch capacitor body with soldering iron.
• Flow Soldering: Do not immerse capacitor body into solder bath. Observe proper soldering conditions. Prevent other parts from touching the capacitor during soldering.
• Capacitor Handling after Solder: Avoid movement after soldering. Do not use capacitor as a handle. Avoid striking the capacitor after assembly.
• Circuit Board Cleaning: Use suitable cleaning solvents, rinse, and dry thoroughly. Avoid ozone-depleting agents. Specific solvent groups (halogenated, alkali, petroleum-based, xylene, acetone) may cause damage or deterioration. Monitor contamination levels.
• Mounting Adhesives and Coating Agents: Avoid materials containing halogenated solvents or chloroprene-based polymers. Dry thoroughly after application.

3. Precautions for using capacitors

• Environmental Conditions: Do not store or use outside rated temperature range, in contact with water/salt water/oil, high humidity, toxic gases, ozone, radiation, UV rays, or exceeding vibration/shock requirements.
• Electrical Precautions: Avoid touching terminals due to electric shock risk. Exposed aluminum case is not insulated. Avoid short-circuiting terminals with conductive materials.

4. Emergency Procedures

• If pressure relief vent operates, immediately turn off equipment and disconnect power. Avoid contact with escaping electrolyte gas. Flush eyes with water if electrolyte enters, gargle if ingested, wash skin with soap and water.

5. Long Term Storage

• Leakage current increases with long storage. Recondition capacitors after one year by applying rated voltage in series with a 1000 resistor for 30 minutes. Products with date codes over eighteen months should be returned for confirmation.

6. Capacitor Disposal

• Incinerate after crushing or puncturing the can wall. Incinerate at high temperatures to prevent release of toxic gases. Dispose of as solid waste, following local laws.