Product Overview

The SAMXON EP Series Aluminum Electrolytic Capacitors are polar, foil-type capacitors designed for use in electronic equipment. Meeting IEC60384 standards, these capacitors are constructed with an aluminum case, PET sleeve, and solder-coated copper clad steel terminals. They are suitable for applications requiring reliable performance across a wide temperature range and are built to withstand various electrical and environmental stresses.

Product Attributes

• Brand: SAMXON
• Series: EP Series
• Construction Type: Single ended, foil type
• Sleeve Material: PET
• Terminal Material: Solder coated copper clad steel
• Seal Material: Rubber-laminated bakelite
• Case Material: Aluminum
• Standard Compliance: IEC60384

Technical Specifications

Key Characteristics & Performance

• Rated Voltage (WV): 180V to 500V DC
• Surge Voltage (SV): 225V to 550V DC
• Capacitance Tolerance: Within specified tolerance at 120Hz, 0.5Vrms, 202
• Leakage Current: As specified in Table 1, measured after 5 minutes with a 1k resistor in series.
• tan: As specified in Table 1, measured at 120Hz, 202.
• Terminal Strength: Withstands 25N axial load for 30s without damage or intermittent contact.
• Load Life Test: 5000 hours at 105 2 with rated ripple current and DC bias. Criteria include leakage current, capacitance change (20%), tan (200% of specified value), and no electrolyte leakage.
• Shelf Life Test: 1000+48/0 hours at 1052. Criteria include leakage current, capacitance change (15%), tan (150% of specified value), and no electrolyte leakage.
• Surge Test: 1000 cycles of 30s charge and 5 min 30s discharge with surge voltage. Criteria include leakage current, capacitance change (15%), tan (within specified value), and no electrolyte leakage.
• Vibration Test: 10Hz ~ 55Hz, 1.5mm peak-to-peak amplitude for 2 hours in 3 directions. No mechanical damage, leakage, or swelling.
• Solderability Test: 95% minimum surface coverage after dipping in Sn-Cu solder at 2503 for 30.5s.
• Resistance to Solder Heat Test: Withstands immersion in solder at 2605 for 101s or 40010 for 3+0/-1s. Criteria include leakage current, capacitance change (10%), tan (within specified value), and no electrolyte leakage.
• Change of Temperature Test: 5 cycles of temperature changes from 20 to -40/-25 and +105. Criteria include leakage current, tan (within specified value), and no electrolyte leakage.
• Damp Heat Test: 5008 hours at 90~95% RH, 402. Criteria include leakage current, capacitance change (20%), tan (120% of specified value), and no electrolyte leakage.
• Vent Test: For products with vents, operates safely under reverse DC voltage without flames or dispersion of parts.
• Maximum Permissible Ripple Current: Specified values at 120Hz and 105, with frequency and temperature multipliers provided.

Application Guidelines

• Circuit Design: Consider effects of operating temperature and frequency on electrical parameters. Avoid reverse voltage, repetitive charge/discharge, overvoltage, and excessive ripple current.
• Series/Parallel Connection: Use shunt resistors for series connections to balance voltage. Careful wiring is needed for parallel connections to balance ripple current.
• Mounting Considerations: Ensure proper clearance for pressure relief vents, avoid short circuits from wiring patterns, and match hole spacing to lead wire spacing.
• Electrical Isolation: Ensure complete isolation between cathode and case, anode and other circuit paths.
• Capacitor Sleeve: The vinyl sleeve is for marking and identification, not electrical insulation.
• Safety: Plan for worst-case failure modes and provide protection circuits.

Capacitor Handling Techniques

• Before Using: Do not reuse capacitors from used equipment. Discharge transient recovery voltage if necessary. Recondition capacitors stored for long periods. Avoid using dropped, dented, or crushed capacitors.
• Insertion: Verify capacitance, rated voltage, and polarity. Ensure correct hole spacing and avoid stress on leads during insertion.
• Soldering: Observe temperature and time specifications. Avoid stress on lead wires and do not touch the capacitor body with the soldering iron.
• Circuit Board Cleaning: Use suitable cleaning solvents and ensure thorough drying. Avoid halogenated, alkali, petroleum-based solvents, xylene, and acetone unless specified.
• Mounting Adhesives/Coatings: Avoid halogenated solvents and chloroprene-based polymers. Dry thoroughly after application.

Precautions for Using Capacitors

• Environmental Conditions: Avoid extreme temperatures, direct contact with water/oil, high humidity, toxic gases, ozone, radiation, and excessive vibration/shock.
• Electrical Precautions: Avoid touching terminals due to potential electric shock. Do not short circuit terminals with conductive materials.
• Emergency Procedures: Immediately turn off equipment if the pressure relief vent operates. Avoid contact with escaping electrolyte gas. Follow first aid procedures for contact with electrolyte.
• Long Term Storage: Recondition capacitors stored for over one year by applying rated voltage with a current limiting resistor.

Capacitor Disposal

• Incinerate after crushing or puncturing the can wall at high temperatures.
• Dispose of as solid waste, following local laws and regulations.