Product Overview

The SAMXON GF 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 sealed with end seal rubber and finished with a PET vinyl sleeve. They are suitable for applications requiring reliable performance across a wide temperature range.

Product Attributes

• Brand: SAMXON
• Category: ALUMINUM ELECTROLYTIC CAPACITORS
• Construction Type: Single ended
• Sleeve Material: PET
• Compliance: IEC60384

Technical Specifications

Detailed Characteristics

4.1 Rated voltage & Surge voltage

4.2 Capacitance (Tolerance)

• Condition: Measuring Frequency: 120Hz12Hz, Measuring Voltage: Not more than 0.5Vrms, Measuring Temperature: 202
• Criteria: Shall be within the specified capacitance tolerance.

4.3 Leakage current

• Condition: Connecting the capacitor with a protective resistor (1k 10 ) in series for 2 minutes, and then, measure Leakage Current.
• Criteria: Refer to Table 1

4.4 tan

• Condition: See 4.2, Norm Capacitance, for measuring frequency, voltage and temperature.
• Criteria: Refer to Table 1

4.5 Impedance

• Condition: Measuring frequency: 100kHz; Measuring temperature: 202; Measuring point: 2mm max. from the surface of a sealing rubber on the lead wire.
• Criteria: Refer to Table 1

4.6 Terminal strength

• Criteria: No noticeable changes shall be found, no breakage or looseness at the terminal.

4.7 Temperature characteristic

• Condition: STEP Testing Temperature() Time; 1: 202, Time to reach thermal equilibrium; 2: -40(-25) 3, Time to reach thermal equilibrium; 3: 202, Time to reach thermal equilibrium; 4: 1052, Time to reach thermal equilibrium; 5: 202, Time to reach thermal equilibrium
• Criteria: a) tan shall be within the limit of Item 4.4; The leakage current measured shall not more than 8 times of its specified value. b. In step 5, tan shall be within the limit of Item 4.4; The leakage current shall not more than the specified value.

4.7 b. Impedance ratio at -40 (-25)

4.8 Load life test

• Condition: According to IEC60384-4No.4.13 methods, The capacitor is stored at a temperature of 105C 2 with DC bias voltage plus the rated ripple current for Table1. (The sum of DC and ripple peak voltage shall not exceed the rated working voltage) Then the product should be tested after 16 hours recovering time at atmospheric conditions.
• Criteria: Leakage current: Value in 4.3 shall be satisfied; Capacitance Change: Within 25% of initial value; tan: Not more than 150% of the specified value; Appearance: There shall be no leakage of electrolyte.

4.9 Shelf life test

• Condition: The capacitors are then stored with no voltage applied at a temperature of 1052 for 1000+48/0 hours. Following this period the capacitors shall be removed from the test chamber and be allowed to stabilized at room temperature for 4~8 hours. Next they shall be connected to a series limiting resistor(1k100 ) with D.C. rated voltage applied for 30min. After which the capacitors shall be discharged, and then, tested the characteristics.
• Criteria: Leakage current: Value in 4.3 shall be satisfied; Capacitance Change: Within 25% of initial value; tan: Not more than 150%of the specified value; Appearance: There shall be no leakage of electrolyte.

4.10 Surge test

• Condition: Applied a surge voltage to the capacitor connected with a (100 50)/CR (k) resistor. The capacitor shall be submitted to 1000 cycles, each consisting of charge of 30 5s, followed discharge of 5 min 30s. The test temperature shall be 15~35. CR :Nominal Capacitance ( F)
• Criteria: Leakage current: Not more than the specified value; Capacitance Change: Within 15% of initial value; tan: Not more than the specified value; Appearance: There shall be no leakage of electrolyte.

4.11 Vibration test

• Condition: The following conditions shall be applied for 2 hours in each 3 mutually perpendicular directions. Vibration frequency range : 10Hz ~ 55Hz Peak to peak amplitude : 1.5mm Sweep rate : 10Hz ~ 55Hz ~ 10Hz in about 1 minute Mounting method: The capacitor with diameter greater than 12.5mm or longer than 25mm must be fixed in place with a bracket.
• Criteria: Inner construction: No intermittent contacts, open or short circuiting. No damage of tab terminals or electrodes. Appearance: No mechanical damage in terminal. No leakage of electrolyte or swelling of the case. The markings shall be legible.

4.12 Solderability test

• Condition: Soldering temperature : 2453C; Dipping depth : 2mm; Dipping speed : 252.5mm/s; Dipping time : 30.5s
• Criteria: Coating quality: A minimum of 95% of the surface being immersed

4.13 Resistance to solder heat test

• Condition: Terminals of the capacitor shall be immersed into solder bath at 2605for101seconds or 40010for3 0 1 seconds to 1.5~2.0mm from the body of capacitor . Then the capacitor shall be left under the normal temperature and normal humidity for 1~2 hours before measurement.
• Criteria: Leakage current: Not more than the specified value; Capacitance Change: Within 10% of initial value; tan: Not more than the specified value; Appearance: There shall be no leakage of electrolyte.

4.14 Change of temperature test

• Condition: Temperature Cycle: According to IEC60384-4No.4.7 methods, capacitor shall be placed in an oven, the condition according as below: Temperature Time (1)+20 3 Minutes (2)Rated low temperature(-40)(-25) 302 Minutes (3)Rated high temperature (+105) 302 Minutes (1) to (3)=1 cycle, total 5 cycle
• Criteria: Leakage current: Not more than the specified value; tan: Not more than the specified value; Appearance: There shall be no leakage of electrolyte.

4.15 Damp heat test

• Condition: Humidity Test: According to IEC60384-4No.4.12 methods, capacitor shall be exposed for 5008 hours in an atmosphere of 90~95%R H .at 402, the characteristic change shall meet the following requirement.
• Criteria: Leakage current: Not more than the specified value; Capacitance Change: Within 20% of initial value; tan: Not more than 120% of the specified value; Appearance: There shall be no leakage of electrolyte.

4.16 Vent test

• Condition: The following test only apply to those products with vent products at diameter 6.3 with vent. D.C. test: The capacitor is connected with its polarity reversed to a DC power source. Then a current selected from below table is applied.
• Criteria: The vent shall operate with no dangerous conditions such as flames or dispersion of pieces of the capacitor and/or case.

4.17 Maximum permissible (ripple current)

• Condition: The maximum permissible ripple current is the maximum A.C current at 100kHz and can be applied at maximum operating temperature Table-1 The combined value of D.C voltage and the peak A.C voltage shall not exceed the rated voltage and shall not reverse voltage.

Environment-related Substances

Refers to the latest document of Environment-related Substances standard(WI-HSPM-QA-072). Controlled Substances include Heavy metals (Cadmium, Lead, Mercury, Hexavalent chromium compounds), Chlorinated organic compounds (PCB, PCN, PCT, SCCP, Other chlorinated organic compounds), Brominated organic compounds (PBB, PBDE, Other brominated organic compounds), Tributyltin compounds(TBT), Triphenyltin compounds(TPT), Asbestos, Specific azo compounds, Formaldehyde, Beryllium oxide, Beryllium copper, Specific phthalates (DEHP,DBP,BBP,DINP,DIDP,DNOP,DNHP), Hydrofluorocarbon (HFC), Perfluorocarbon (PFC), Perfluorooctane sulfonates (PFOS), Specific Benzotriazole.

Application Guidelines

1. Circuit Design

• 1.1 Operating Temperature and Frequency: Electrical parameters vary with temperature and frequency. Designers should account for increases in leakage current and capacitance and decreases in ESR at higher temperatures, and vice-versa at lower temperatures. At higher frequencies, capacitance and impedance decrease while tan increases. At lower frequencies, ripple current generated heat can rise due to increased ESR.
• 1.2 Operating Temperature and Life Expectancy: Refer to the file: Life calculation of aluminum electrolytic capacitor.
• 1.3 Common Application Conditions to Avoid:
• Reverse Voltage: DC capacitors have polarity; use DC bipolar capacitors for circuits with changing or uncertain polarity. DC bipolar capacitors are not suitable for AC circuits.
• Charge / Discharge Applications: Standard capacitors are not suitable for repeating charge/discharge applications. Consult manufacturer for specific conditions.
• Over voltage: Do not exceed rated voltage. Ensure the sum of DC and AC ripple voltage does not exceed rated voltage.
• Ripple Current: Do not exceed maximum specified ripple current. Use capacitors designed for high ripple currents or contact manufacturer. Ensure ripple currents do not cause reverse voltage conditions.
• 1.4 Using Two or More Capacitors in Series or Parallel:
• Capacitors Connected in Parallel: Careful wiring is needed to minimize excessive ripple currents due to circuit resistance.
• Capacitors Connected in Series: Use voltage divider shunt resistors to prevent voltage imbalances caused by DC leakage current differences.
• 1.5 Capacitor Mounting Considerations:
• Double Sided Circuit Boards: Avoid wiring patterns between capacitor and board to prevent shorts.
• Circuit Board Hole Positioning: Prevent damage to the vinyl sleeve from solder.
• Circuit Board Hole Spacing: Match capacitor lead wire spacing to avoid stress.
• Clearance for Pressure Relief vents: Ensure sufficient clearance for vent operation ( 6.3~ 16mm: 2mm, 18~ 35mm: 3mm, 40mm or greater: 5mm).
• Clearance for Seal Mounted Pressure Relief Vents: A hole in the circuit board under the seal vent is required.
• Wiring Near the Pressure Relief Vent: Avoid high voltage/current wiring above the vent to prevent ignition.
• Circuit Board patterns Under the Capacitor: Avoid runs under the capacitor to prevent shorts from electrolyte leakage.
• Screw Terminal Capacitor Mounting: Do not orient screw terminal side downwards. Tighten screws within specified torque range.
• 1.6 Electrical Isolation of the Capacitor: Completely isolate cathode from case (except B types), anode terminal from other paths, and extra mounting terminals from anode/cathode terminals and other paths.
• 1.7 Product endurance should take the sample as the standard.
• 1.8 If conduct the load or shelf life test, must be collect date code within 6 months products of sampling.
• 1.9 Capacitor Sleeve: The vinyl sleeve is for marking and identification, not electrical insulation. It may split or crack when exposed to solvents and high temperatures.

2. Capacitor Handling Techniques

• 2.1 Considerations Before Using: Capacitors have a finite life; do not reuse from used equipment. Transient recovery voltage may occur. Dropped or dented/crushed capacitors should not be used.
• 2.2 Capacitor Insertion: Verify capacitance, rated voltage, and polarity. Ensure correct hole spacing. Avoid stressing leads during insertion.
• 2.3 Manual Soldering: Observe temperature and time specifications. Avoid stress on leads. Do not touch capacitor body with soldering iron.
• 2.4 Flow Soldering: Do not immerse capacitor body into solder bath. Observe proper soldering conditions.
• 2.5 Other Soldering Considerations: Avoid rapid temperature rises that can cause sleeve cracking.
• 2.6 Capacitor Handling after Solder: Avoid movement after soldering. Do not use capacitor as a handle. Avoid striking capacitor after assembly.
• 2.7 Circuit Board Cleaning: Use suitable cleaning solvents for up to 5 minutes and up to 60. Rinse and dry thoroughly. Avoid halogenated, alkali, petroleum-based solvents, xylene, and acetone unless specified.
• 2.8 Mounting Adhesives and Coating Agents: Avoid materials containing halogenated solvents or chloroprene based polymers. Dry thoroughly after application.

3. Precautions for using capacitors

• 3.1 Environmental Conditions: Do not store or use in extreme temperatures, direct contact with water/salt water/oil, high humidity, toxic gases, ozone/radiation/UV rays, or exceeding vibration/shock requirements.
• 3.2 Electrical Precautions: Avoid touching terminals due to shock risk. Do not short circuit terminals with conductive materials.

4. Emergency Procedures

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

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.
• 5.1 Environmental Conditions: Same as 3.1.

6. Capacitor Disposal

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