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Specifications
Operating Temperature:
-40℃~+105℃
Capacitance:
4.7uF
Height - Seated (Max):
7mm
Voltage Rating:
50V
Diameter:
4mm
Mfr. Part #:
CD288475M1H0407VFL
Package:
Through Hole,D4xL7mm
Key Attributes
Model Number:
CD288475M1H0407VFL
Product Description
Product Overview
The CD288 series of plug-in aluminum electrolytic capacitors from HRK (Hong Rui Kai Electronics Technology Co., Ltd.) are designed for high-frequency, low-impedance applications. These capacitors feature a green sleeve with gold lettering, indicating their specifications. They are suitable for use in environments requiring stable performance up to 105 and are manufactured to meet rigorous industry standards. The product is ideal for various electronic circuits where reliable capacitance and low impedance are critical.
Product Attributes
- Brand: HRK ()
- Product Name: Plug-in Aluminum Electrolytic Capacitor ()
- Sleeve Color: Green ()
- Marking Color: Gold ()
- Origin: China
Technical Specifications
| HRK P/N | Series | Rated Capacitance (uF) | Rated Voltage (V) | Capacitance Tolerance (%) | Dissipation Factor (%, Max) | Leakage Current (uA, Max) | Surge Voltage (V) | Equivalent Impedance (, 20, 100KHz) | Rated Ripple Current (mA rms, 105, 100KHz) | Durability (Hrs, at 105) | Diameter (mm) | Height (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CD288475M1H0407VFL | CD288 | 4.7 | 50 | -20~+20 | 10 | 3 | 63 | 3.8 | 180 | 2000 | 4 | 7 |
Product Code Rule
| Series | Capacitance (uF) | Cap. Code | Capacitance Tolerance (%) | Tolerance Code | Voltage (W.V) | Voltage Code | Size DxL | Size Code | Sleeve Material Code | Lead Process Code |
|---|---|---|---|---|---|---|---|---|---|---|
| CD288 | 4.7 | 475 | -20~+20 | M | 50 | 1H | 4x7 | 0407 | V (PVC) | FL (Radial Bulk) |
Operating Temperature Range
| Rated Voltage | Temperature Range |
|---|---|
| 6.3 ~ 500 VDC | -40 ~ +105 |
Product Structure
| Component | Material |
|---|---|
| Aluminum Foil | Aluminum |
| Separator Paper | Wood Pulp |
| Electrolyte | Ethylene Glycol, Ammonium Adipate |
| Case | Aluminum |
| Rubber Seal | EPDM Rubber |
| Lead Wire | Tin-plated Copper Clad Steel Wire |
| Sleeve | PVC |
Ripple Current Frequency Factor Coefficient
| Frequency (Hz) | Coefficient (Under 10uF) | Coefficient (10C100) | Coefficient (100C1000) | Coefficient (1,000 up above) |
|---|---|---|---|---|
| 60Hz | 0.65 | 0.70 | 0.75 | 0.80 |
| 120Hz | 1.00 | 1.00 | 1.00 | 1.00 |
| 300Hz | 1.15 | 1.15 | 1.18 | 1.05 |
| 1KHz | 1.40 | 1.40 | 1.30 | 1.12 |
| 10KHz~ | 1.50 | 1.50 | 1.35 | 1.15 |
Packaging
| Product Size DxL (mm) | Bag Quantity | Inner Box | Outer Box | Bag/Inner Box | Pcs/Inner Box | Inner Box/Outer Box | Pcs/Outer Box | Inner Box Dimensions (mm) | Outer Box Dimensions (mm) |
|---|---|---|---|---|---|---|---|---|---|
| 4*7 | 1000 | 50 | 50000 | 2 | 100000 | - | - | 290*225*295 | 470*315*320 |
Reliability Evaluation Standards
| No. | Item | Test Conditions or Method | Judgment Standard | |
|---|---|---|---|---|
| 1 | Capacitance (CAP) | Test Circuit: Series Equivalent Circuit, Test Frequency: 120Hz, Test Voltage: WV/60S | Within the error range of rated capacitance, see Table-1 for error range. | |
| 2 | Dissipation Factor (DF) | Less than or equal to the dissipation factor in Table-1. | ||
| 3 | Leakage Current (LC) | Apply rated working voltage across the capacitor in the test circuit below, with a 100010 series resistor. Measure leakage current after 2 minutes. | Less than or equal to the leakage current value in Table-1. | |
| 4 | Surge Voltage | Under 15~35 normal temperature and humidity, apply surge voltage to the capacitor through a protective resistor of (10050)/CR (K). One cycle consists of 305 seconds of charging and 5.50.5 minutes of discharging, repeated 1000 times. | Capacitance change rate: Within 15% of initial value. Dissipation factor: Not greater than specification. Leakage current: Not greater than specification. Appearance: No visible abnormal appearance. | |
| 5 | Temperature Characteristics | Stages: 1. 255, 2. -253, 3. -403, 4. 255, 5. +1053. Time to reach thermal stability at each stage. Apply rated working voltage. | Impedance Ratio: Ratio of impedance in stages 2, 3 to stage 1 should not exceed the values in the table below. Capacitance change rate: Within 25% relative to stage 1. Dissipation factor: Not greater than 5 times the specification. Leakage current: Not greater than specification. | |
| Rated Voltage | Z(-25)/Z(20) | Z(-40)/Z(20) | ||
| 6.3, 10, 16, 25 V | 8, 6, 4, 4 | 18, 16, 12, 10 | ||
| 35-50 V | 3, 3 | 8, 6 | ||
| 63-100 V | 3, 3 | 8, 6 | ||
| 160~250 V | 4 | 8 | ||
| 350~450 V | 8 | 18 | ||
| 450~550 V | 15 | --- | ||
| 6 | Lead Tensile Strength | Apply the tensile force shown in the table to the capacitor leads and hold for 101 seconds. | No obvious appearance change, no lead breakage or loosening. | |
| Lead Diameter (mm) | Tensile Strength N {kgf} | Bending Strength N {kgf} | ||
| 0.45 | 5 {0.51} | 2.5 {0.25} | ||
| 0.5 | 10 {1.0} | 5 {0.51} | ||
| 0.6 | 20 {2.0} | 10 {1.0} | ||
| 0.8, 1.0 | - | - | ||
| 7 | Lead Bending Strength | Fix the capacitor vertically on a jig. Apply the tensile force shown in the table in the direction of the lead. Rotate 90 degrees to one side and return to the original position within 2~3 seconds, then rotate 90 degrees in the opposite direction and return to the original position constitutes one cycle. | No obvious appearance change, no lead breakage or loosening. | |
| 8 | Vibration Test | 2 hours in each direction on a vibration test stand, total 6 hours. Frequency Range: 10~55Hz, Amplitude: 1.5mm, Sweep Rate: Approx. 1 minute from 10 to 55 and back to 10 Hz. | Capacitance Test: Stable measured value. Capacitance change: Within 5% of initial value. Appearance: No abnormal appearance. | |
| 9 | Solderability | Dip the capacitor leads into a rosin solution (25% by weight) for 5~10 seconds, then immerse in solder at 2455 until approximately 1.5~2.0mm from the capacitor body. | Approximately 90% or more of the immersed lead surface area should be covered with new solder. | |
| 10 | Resistance to Soldering Heat | Immerse the leads, 1.5~2.0mm below the body, in solder at 2605 or 35010 for 101 or 3~4 seconds respectively, then remove. Measure after 1~2 hours at normal temperature and humidity. | Capacitance change rate: Within 10% of initial value. Dissipation factor: Not greater than specification. Leakage current: Not greater than specification. Appearance: No significant abnormal appearance. | |
| 11 | Stable Damp Heat | Place in an environment of 405 and 90~95% relative humidity for 2408 hours, then measure after 1~2 hours at normal temperature and humidity. | Capacitance change rate: Within 20% of initial value. Dissipation factor: Not greater than 1.2 times the specification. Leakage current: Not greater than specification. Appearance: No significant abnormal appearance. | |
| 12 | Rapid Temperature Change | Place the capacitor in a thermal shock chamber. Temperature cycles: +25 (3min) -40 (30min) +25 (3min) +105 (30min) +25 (3min). Perform 5 cycles, then measure after 1~2 hours at normal temperature and humidity. | Capacitance change rate: Within 10% of initial value. Dissipation factor: Not greater than specification. Leakage current: Not greater than specification. Appearance: No significant abnormal appearance. | |
| 13 | Durability | Apply rated voltage and ripple current at the upper temperature limit for the rated life. Measure after 1~2 hours in a standard environment. | Capacitance change rate: Within 20% of initial value. Dissipation factor: Not greater than 2 times the specification. Leakage current: Not greater than specification. Appearance: No significant abnormal appearance. | |
| 14 | High Temperature Storage | Store at 1052 without voltage for 1000+48/-0 hours, then recover for 16 hours before measurement. | Capacitance change rate: Within 20% of initial value. Dissipation factor: Not greater than 2 times the specification. Leakage current: Not greater than specification. Appearance: No significant abnormal appearance. | |
| 15 | Explosion Proof | a) AC Power Test Method: Apply 0.7 times the rated voltage or 250V AC (whichever is lower) at 50 or 60 Hz across the capacitor. b) DC Power Test Method: For diameters 22.4mm, apply 1A current; for diameters > 22.4mm, apply 10A current with reverse DC voltage. | The explosion-proof valve should open without flame. If the explosion-proof valve does not open within 30 minutes of applied voltage, the performance is considered satisfactory. |
Notes on Using Aluminum Electrolytic Capacitors
- Aluminum electrolytic capacitors are polarized; use them with the correct polarity. Reverse connection can cause circuit short circuits or capacitor damage. Use non-polarized capacitors if reverse polarity or unknown polarity is possible.
- Do not apply reverse voltage or DC voltage exceeding the rated voltage. Exceeding the rated voltage will significantly increase leakage current, leading to capacitor damage. Using at rated voltage is recommended for longevity. Surge voltage is the maximum voltage the capacitor can withstand for a short period.
- Ripple current should be less than the rated value. Exceeding the rated ripple current will cause the capacitor body to overheat, reducing capacitance and lifespan. The sum of the peak ripple voltage and the DC voltage should be less than the rated working voltage.
- Use capacitors within their rated temperature range. Operating above the upper temperature limit will significantly shorten lifespan or cause the explosion-proof valve to open. Using at room temperature ensures a longer lifespan. Scientific statistics show that for every 10 decrease in ambient temperature, the lifespan doubles.
- After long-term storage, leakage current may increase. Higher storage temperatures accelerate this increase. Pay attention to storage conditions. After applying voltage to the capacitor, the leakage value will decrease. If the leakage current affects the circuit, pre-charge before use.
- Capacitors are not suitable for circuits with frequent charge/discharge cycles. Capacitance may decrease due to oxidation of the negative electrode oxide film, or the capacitor may be damaged by heat generated during charge/discharge.
- Improper installation or stress on the leads can damage the internal structure, leading to high leakage current or leakage issues.
- a) Good soldering.
- b) PCB hole spacing differs from lead spacing.
- c) Do not bend leads.
- d) Do not bend or twist the capacitor body when soldering is uneven.
- During tin dipping or soldering, the sleeve may crack or shrink secondarily due to excessive soldering time or temperature.
- Do not use halogenated organic solvents for cleaning aluminum electrolytic capacitors. If cleaning is necessary, use a cleaning agent that guarantees capacitor quality. Do not store in the cleaning solution or sealed containers after cleaning. Dry with hot air for over 10 minutes, with the hot air temperature not exceeding the capacitor's upper temperature limit.
- Do not use fixing agents or coating agents containing halogenated organic compounds. Do not seal the capacitor's sealing area completely with fixing or coating agents.
- Recommended storage conditions: below 35, relative humidity less than 75% RH, away from direct sunlight. The product's shelf life is 12 months from the manufacturing date. If stored beyond 12 months, check electrical characteristics and solderability.
- When disposing of capacitors, contact a local industrial waste disposal service.
- Refer to EIAJ RCR-2367B for more details.
Environmental Statement
We hereby guarantee that all or part of the products, including but not limited to products and packaging, directly or indirectly delivered to your company (including your company's subsidiaries and affiliates) do not contain the following substances:
- Compliant with the current RoHS directive without any exemptions.
- All goods/materials do not contain Substances of Very High Concern (SVHC) listed in REACH Annex XIV.
- Compliant with Directive 2006/22/EC (PFOA/PFOS).
- Compliant with Directive 2005/84/EC (16P).
- Meets the requirements of ZEK 01.2-08 (Polycyclic Aromatic Hydrocarbons).
- Compliant with Sony SS-00259, 18th Edition environmental requirements.
Sample Test Report
| Customer Name | Customer P/N | Product Size | Product Series | Specification Description | Test Date | Temperature Range | Sample Quantity | Appearance Diagram | Test Conditions | Performance Requirements |
|---|---|---|---|---|---|---|---|---|---|---|
| 4*7mm | CD288 | 4.7uF/50v | 2024.08.22 | -40~105 | 10 Pcs | Test Environment Temp: 25, Test Environment Humidity: 65%RH, Test Circuit: Series Equivalent Circuit, Test Frequency: 120Hz | Capacitance Tolerance: 20% (3.76~5.64uF), Dissipation Factor: 10%, Leakage Current: 3uA, Equivalent AC Impedance: 3.8 |
| Test Item | Capacitance (uF) | Dissipation Factor (%) | Voltage (V) | Leakage Current (uA) | Equivalent AC Impedance () | Test Conditions | Product Size | D (mm) | L (mm) | F (mm) | d (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 4.42 | 5.17 | 50 | 0.5 | 3.22 | 120HZ | 4.12 | 7.70 | 2.0 | 0.50 | |
| 2 | 4.45 | 5.11 | 50 | 0.5 | 3.16 | 120HZ | 4.13 | 7.70 | 2.0 | 0.50 | |
| 3 | 4.41 | 5.18 | 50 | 0.5 | 3.31 | 120HZ | 4.12 | 7.70 | 2.0 | 0.50 | |
| 4 | 4.43 | 5.13 | 50 | 0.5 | 3.18 | 120HZ | 4.12 | 7.70 | 2.0 | 0.50 | |
| 5 | 4.45 | 5.14 | 50 | 0.5 | 3.02 | 120HZ | 4.12 | 7.70 | 2.0 | 0.50 | |
| 6 | 4.43 | 5.12 | 50 | 0.5 | 3.02 | 120HZ | 4.13 | 7.70 | 2.0 | 0.50 | |
| 7 | 4.42 | 5.16 | 50 | 0.5 | 3.11 | 120HZ | 4.13 | 7.70 | 2.0 | 0.50 | |
| 8 | 4.46 | 5.14 | 50 | 0.5 | 3.22 | 120HZ | 4.12 | 7.70 | 2.0 | 0.50 | |
| 9 | 4.43 | 5.13 | 50 | 0.5 | 3.22 | 120HZ | 4.13 | 7.70 | 2.0 | 0.50 | |
| 10 | 4.45 | 5.17 | 50 | 0.5 | 3.16 | 120HZ | 4.13 | 7.70 | 2.0 | 0.50 |
Result Judgment: Pass
Auditor: Zhang Hongliang
Reviewer: Zhang Hongliang
Tester: Wu Guicheng
2601051503_HRK-CD288475M1H0407VFL_C7499923.pdf
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