Product Overview

The SAMXON KM 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. They feature an aluminum case, end seal rubber, and a PET vinyl sleeve. The KM series offers reliable performance across a specified operating temperature range and is suitable for general electronic applications.

Product Attributes

• Brand: SAMXON
• Series: KM Series
• Type: Polar Aluminum Electrolytic Capacitor (Foil Type)
• Construction: Single ended type
• Case Material: Aluminum
• Sleeve Material: PET
• Lead Material: Tinned CP wire (Pb Free)
• Terminal Material: Aluminum wire
• Sealing Material: Rubber
• Separator Material: Electrolyte paper

Technical Specifications

Characteristics

Standard Atmospheric Conditions

• Ambient Temperature: 15C to 35C
• Relative Humidity: 45% to 85%
• Air Pressure: 86kPa to 106kPa

Measurement Conditions

• Ambient Temperature: 20C 2C
• Relative Humidity: 60% to 70%
• Air Pressure: 86kPa to 106kPa

Operating Temperature Range

The ambient temperature range at which the capacitor can be operated continuously at rated voltage. Refer to Table 1 for temperature range.

Rated Voltage & Surge Voltage (Table 2)

Capacitance (Tolerance)

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

Leakage Current

• Condition: Connect the capacitor with a protective resistor (1k10) in series for 2 minutes, and then measure Leakage Current.
• Criteria: Refer to Table 1.

tan

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

Terminal Strength

• Tensile Strength of Terminals: Applied force to the terminal in lead out direction for 101 seconds.
• Bending Strength of Terminals: Applied force to bent the terminal (1~4 mm from the rubber) for 90 within 2~3 seconds, and then bent it for 90 to its original position within 2~3 seconds.
• Diameter of lead wire:
• 0.5mm and less: Tensile force 5 N (0.51 kgf), Bending force 2.5 N (0.25 kgf)
• Over 0.5mm to 0.8mm: Tensile force 10 N (1.0 kgf), Bending force 5 N (0.51 kgf)
• Criteria: No noticeable changes shall be found, no breakage or looseness at the terminal.

Temperature Characteristics

• Condition: Step testing at various temperatures (-40C, 20C, 105C) with time to reach thermal equilibrium.
• Criteria: tan within limit, leakage current not more than 8 times specified value. At -40C (-25C), impedance (z) ratio shall not exceed specified values based on working voltage.

Load Life Test

• Condition: According to IEC60384-4 No.4.13 methods, at 105C 2 with DC bias voltage plus rated ripple current for Table 1. Tested after 16 hours recovery time.
• Criteria: Leakage current satisfied, Capacitance Change within 20% of initial value, tan not more than 200% of specified value, no leakage of electrolyte.

Shelf Life Test

• Condition: Stored at 1052 for 1000+48/0 hours with no voltage applied. Stabilized at room temperature, then rated DC voltage applied for 30min with a series limiting resistor (1k100).
• Criteria: Leakage current satisfied, Capacitance Change within 20% of initial value, tan not more than 200% of specified value, no leakage of electrolyte.

Surge Test

• Condition: Applied a surge voltage to the capacitor connected with a (100 50)/CR (k) resistor for 1000 cycles.
• Criteria: Leakage current not more than specified value, Capacitance Change within 15% of initial value, tan not more than specified value, no leakage of electrolyte.

Vibration Test

• Condition: 10Hz ~ 55Hz, Peak to peak amplitude 1.5mm, for 2 hours in each of 3 mutually perpendicular directions. Capacitors > 12.5mm diameter or > 25mm length must be fixed with a bracket.
• Criteria: No intermittent contacts, open or short circuiting. No damage of tab terminals or electrodes. No mechanical damage in terminal. No leakage of electrolyte or swelling of the case. Markings legible.

Solderability Test

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

Resistance to Solder Heat Test

• Condition: Terminals immersed into solder bath at 2605 for 101 seconds or 40010 for 3+0/-1 seconds to 1.5~2.0mm from the body. Tested after 1~2 hours at normal temperature and humidity.
• Criteria: Leakage current not more than specified value, Capacitance Change within 10% of initial value, tan not more than specified value, no leakage of electrolyte.

Change of Temperature Test

• Condition: Temperature Cycle according to IEC60384-4 No.4.7 methods (5 cycles of +20, rated low temperature, +105).
• Criteria: Leakage current not more than specified value, tan not more than specified value, no leakage of electrolyte.

Damp Heat Test

• Condition: 5008 hours in an atmosphere of 90~95% RH at 402.
• Criteria: Leakage current not more than specified value, Capacitance Change within 20% of initial value, tan not more than 120% of specified value, no leakage of electrolyte.

Vent Test (for products with vent diameter 6.3)

• Condition: DC test with reversed polarity and applied current from Table 3.
• Criteria: Vent shall operate with no dangerous conditions such as flames or dispersion of pieces.

Maximum Permissible Ripple Current

Maximum AC current at 120Hz and maximum operating temperature. The sum of DC voltage and AC ripple peak voltage shall not exceed rated voltage and shall not reverse voltage.

Environment-related Substances to be Controlled

Refers to the latest document of Environment-related Substances standard (WI-HSPM-QA-072). Includes controlled substances such as Heavy metals, Chlorinated organic compounds, Brominated organic compounds, etc.

Attachment: Application Guidelines

1. Circuit Design

• 1.1 Operating Temperature and Frequency: Electrical parameters vary with temperature and frequency. At higher temperatures, leakage current and capacitance increase, ESR decreases. At lower temperatures, leakage current and capacitance decrease, ESR increases. At higher frequencies, capacitance and impedance decrease, tan increases. At lower frequencies, ripple current generated heat will rise due to increased ESR.
• 1.2 Operating Temperature and Life Expectancy: Refer to 'Life calculation of aluminum electrolytic capacitor' file.
• 1.3 Common Application Conditions to Avoid: Reverse Voltage, Charge/Discharge Applications, Over voltage, Ripple Current exceeding specified values.
• 1.4 Using Two or More Capacitors in Series or Parallel: Parallel connection may cause imbalance of ripple current loads. Series connection may cause voltage imbalances due to leakage current differences.
• 1.5 Capacitor Mounting Considerations: Avoid wiring patterns under the capacitor, ensure proper hole spacing, provide clearance for pressure relief vents, avoid high voltage wiring near vents, avoid circuit board patterns under the capacitor, and follow torque specifications for screw terminals.
• 1.6 Electrical Isolation: Ensure complete isolation between cathode and case (except for B types), anode terminal and other paths, and extra mounting terminals and other paths.
• 1.7 Product Endurance: Sample should be the standard.
• 1.8 Load or Shelf Life Test: Collect date code within 6 months products of sampling.
• 1.9 Capacitor Sleeve: Vinyl sleeve is for marking and identification, not electrical insulation. May split or crack with solvents and high temperatures.

2. Capacitor Handling Techniques

• 2.1 Considerations Before Using: Capacitors have finite life. Do not reuse. Transient recovery voltage may be generated. Leakage current may increase after long storage. Avoid using dropped or dented capacitors.
• 2.2 Capacitor Insertion: Verify capacitance, rated voltage, and polarity. Ensure correct hole spacing and avoid stressing leads.
• 2.3 Manual Soldering: Observe temperature and time specifications. Avoid stress on leads and touching the capacitor body with the 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 during preheat and resin bonding.
• 2.6 Capacitor Handling after Solder: Avoid movement after soldering, do not use capacitor as a handle, avoid striking the capacitor.
• 2.7 Circuit Board Cleaning: Use suitable cleaning solvents, rinse and dry thoroughly. Avoid halogenated, alkali, petroleum-based, xylene, and acetone solvents unless specified. Monitor contamination levels.
• 2.8 Mounting Adhesives and Coating Agents: Avoid materials containing halogenated solvents or chloroprene based polymers. Dry thoroughly.

3. Precautions for Using Capacitors

• 3.1 Environmental Conditions: Avoid temperatures outside rated range, contact with water/salt water/oil, high humidity, toxic gases, ozone/radiation/UV rays, and excessive vibration/shock.
• 3.2 Electrical Precautions: Avoid touching terminals. Avoid short circuiting terminals with conductive materials.

4. Emergency Procedures

• If vent operates, immediately turn off equipment and disconnect power. Avoid contact with escaping electrolyte gas. Flush eyes with water if electrolyte enters. Wash skin with soap and water if contact occurs.

5. Long Term Storage

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

6. Capacitor Disposal

Incinerate after crushing or puncturing the can wall. Dispose of as solid waste. Follow local laws for specific disposal requirements.