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Specifications
Lifetime:
2000hrs@105℃
Operating Temperature:
-25℃~+105℃
Capacitance:
68uF
Height - Seated (Max):
25mm
Pin Spacing:
7.5mm
Voltage Rating:
450V
Diameter:
18mm
Ripple Current:
420mA@120Hz
Tolerance:
±20%
Mfr. Part #:
68uF450V18x25KM
Package:
Through Hole,D18xL25mm
Key Attributes
Model Number:
68uF450V18x25KM
Product Description
Product Overview
The Hubei Milang Xingchuang Electronics Co., Ltd. KM Series aluminum electrolytic capacitor is designed for various electronic applications. This specification sheet details its electrical characteristics, dimensions, marking, testing procedures, and packaging options.
Product Attributes
- Brand: MILANG
- Origin: Hubei, China
- Product Type: Aluminum Electrolytic Capacitor
- Series: KM Series
- Certifications: RoHS
- Sleeve Material: PET
- Sleeve Color: Black with white lettering
Technical Specifications
| Part Number | Series | Capacitance (uF) | Rated Voltage (V) | Size (D x L) | Tolerance | Dissipation Factor (D.F) / 120Hz | Leakage Current (uA) 60s | Impedance () 100KHz | Life (Hrs) | Ripple Current (mA) 120Hz @105 | Surge Voltage (V) | Sleeve | Working Temperature (C) |
| KM 68UF450V 18X25 | KM | 68.0 | 450 | 18.0 x 25.0 | -20% ~ +20% | 17 | 918.0 | / | 2000 | 420 | 500 | Black bottom white PET Long lead | -25 ~ +105 |
Ripple Current Multiplier
Frequency Multiplier
| Freq | CAP10 | 10CAP100 | 100CAP1000 | CAP1000 |
| 50Hz/60Hz | 0.65 | 0.75 | 0.80 | 0.85 |
| 120Hz | 1.00 | 1.00 | 1.00 | 1.00 |
| 1KHz | 1.75 | 1.50 | 1.30 | 1.05 |
| 10KHz | 2.30 | 1.75 | 1.40 | 1.08 |
| 50100KHz | 2.50 | 1.80 | 1.40 | 1.08 |
Temperature Multiplier
| Temperature (C) | 45 | 60 | 70 | 85 | 95 | 105 |
| Multiplier | 2.30 | 2.10 | 2.00 | 1.70 | 1.40 | 1.00 |
Dimensions
| Symbol | Dimension | Tolerance | Unit |
| D | 18.0 | 0.5 | mm |
| L | 25.0 | 1.5 | mm |
| F | 7.5 | 0.5 | mm |
| d | 0.8 | 0.05 | mm |
Marking
| Item | Description |
| 1 | Company Logo |
| 2 | Capacitance and Rated Voltage |
| 3 | Polarity bar |
| 4 | Product Series |
| 5 | Operating Temperature Range and Capacitance Tolerance |
| 6 | RoHS environmental mark |
| 7 | Production Date Code (e.g., 2502 for Feb 2025) |
| 8 | Sleeve Material |
Test Items
| NO | Test Item | Conditions | Specifications |
| 1 | Maximum permissible ripple current | Temperature:1052, Voltage:DC.Voltage+peak ripple voltageRated voltage. Ripple frequency: 120Hz | Refer to table |
| 2 | Surge | Temperature:1052, Applied voltage: see specification, Duration:1000 cycles | 1.No electrical or mechanical damage. 2.Capacitance change within 15%. 3.D.F. smaller than specification value. 4.Leakage current smaller than specification value. |
| 3 | Temperature Cycle | One Cycle: Rated low category temperature3 (303 min) to 25 (3 MAX min), Total number of cycles: 5 | 1.No appearance defect. 2.Capacitance change within 5%. 3.D.F. smaller than specification value. 4.Leakage current smaller than specification value. |
| 4 | Resistance to Soldering Heat | Warm up time:1202 seconds to reach 1202, Solder bath temperature: 2605, Immersion depth: 1.5 to 2.0mm, Immersion duration: 101 seconds | 1.No appearance defect. 2.Capacitance change within 5%. 3.D.F. smaller than specification value. 4.Leakage current smaller than specification value. |
| 5 | Solder Ability | Solder bath temperature: 2355, Immersion depth: 1.5 to 2.0mm, Immersion duration: 101 seconds | A minimum of 95% of the immersed surface is to be coated with new solder. |
| 6 | Low Temperature Characteristics (Max. Impedance Ratio) | Working Voltage (V) | Z(-40)/Z(+20) for 6.3V to 100V: 8, 6, 4, 3, 3, 3, 3, 3. Z(-25)/Z(+20) for 160V to 450V: 3, 3, 4, 4, 6, 6, 8. |
| 7 | High Humidity Storage | Temperature:402, Relative humidity: 90 to 95%, Duration: 2408 hours | 1.No electrical or mechanical damage. 2.Capacitance change within 15%. 3.D.F. smaller than specification value. 4.Leakage current smaller than specification value. |
| 8 | Vent (Explosion Proof) | Applied current (A) | Less than 22.4mm diameter: 1A within 30 minutes. More than 22.5mm diameter: 10A within 9 minutes. |
| 9 | Terminal Strength: Tensile/Bending | Tensile test intensity: 0.5d0.8 (10N, 101sec), 0.8d1.25 (20N, 101sec). Bending strength: 0.5d0.8 (5N), 0.8d1.25 (10N). | 1.No electrical or mechanical damage. 2.No appearance damage. |
| 10 | Vibration | Frequency range: 10 Hz to 55 Hz, Amplitude: 1.5 mm, Cycle duration: 1 minute, Duration: 2 hours per direction (3 directions) | 1.No electrical or mechanical damage. 2.No appearance damage. |
| 11 | Endurance | Capacitors in oven at 105 with applied voltage for 2000 hours. | 1.Capacitance change within 20% of initial value. 2.D.F. change within 200% of specified value. 3.Leakage current smaller than specification value. |
| 12 | Shelf Life | Capacitors in oven at 105 for 1000 hours without rated working voltage. | 1.Capacitance change within 20% of initial value. 2.D.F. change within 200% of specified value. 3.Leakage current within 200% of specification value. |
Packaging
Bulk Packaging
- Includes long lead and short lead packaging.
- Outer box dimensions: 420 x 327 x 270 mm.
Taped Packaging
- Standard packaging: 10 inner boxes per outer box.
- Inner box dimensions: 345 x 235 x 55 mm.
- Outer box dimensions: 490 x 355 x 295 mm.
Tray Packaging
- (Details not specified in source text)
Storage Conditions
- Storage Temperature: 35
- Storage Humidity: 75% RH
- Shelf Life: One year (re-charging required after one year)
2507111630_Econd-68uF450V18x25KM_C49332853.pdf
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