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CD135 400V/450V 1000-4700µF Screw Capacitor for Inverter UPS Amplifier Welding Machine
CD135 400V/450V 1000-4700µF Screw Capacitor for Inverter UPS Amplifier Welding Machine
Regular price
$18.99 USD
Regular price
$0.00 USD
Sale price
$18.99 USD
Shipping calculated at checkout.
Quantity
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Electrical & Mechanical Characteristics
| Series | CD135 |
|---|---|
| Type | Screw terminal (bolt type) aluminum electrolytic capacitor |
| Rated Voltage | 400V DC / 450V DC |
| Capacitance Range | 1000µF / 1500µF / 1800µF / 2200µF / 3300µF / 4700µF |
| Capacitance Tolerance | ±20% (M) at 20°C, 120Hz |
| Operating Temperature | -40°C ~ +85°C |
| Load Life | 2000 hours at 85°C |
| Dissipation Factor (tanδ) | ≤ 0.25 (at 120Hz, 20°C) |
| Leakage Current | ≤ 0.02CV or 5mA, whichever is smaller |
| Terminal Type | M5 screw terminal (M5×0.8×10 hex bolt) |
| Tightening Torque | 3.23 N·m |
| Mounting | Chassis mount / panel mount |
| Safety Vent | Top pressure relief vent |
| Compliance | RoHS Compliant |
* Specifications are based on Jianghai official CD135 datasheet. Please confirm with the latest datasheet before ordering.
Key Features
- Screw terminal (bolt type) design for secure, low-resistance, high-current connections
- High ripple current capability for demanding power electronics
- Low ESR design minimizes power loss and heat generation
- Large capacitance range from 1000µF to 4700µF
- 2000h load life at 85°C for reliable long-term operation
- Top safety vent for pressure relief protection
- RoHS compliant, environmentally friendly materials
- Chassis mount design allows easy field replacement without PCB rework
Typical Applications
- Inverters & VFDs: DC-link capacitors for motor drives and frequency converters
- UPS Systems: Energy storage and smoothing in uninterruptible power supplies
- Welding Machines: Filter capacitors in industrial arc welding equipment
- Audio Amplifiers: Power supply filtering for high-power professional amplifiers
- Solar Inverters: DC-link energy storage in photovoltaic systems
- Industrial Power Supplies: Smoothing and energy storage in rectifier circuits
- Wind Power Converters: Filtering and energy buffer in turbine systems
- Electrolytic Plating: Energy storage in DC power supplies
Available Models & Dimensions
| Model | Voltage | Capacitance | Dimensions ΦD×L (mm) | Terminal |
|---|---|---|---|---|
| CD135 | 400V | 1000µF | 50×80 | M5 |
| CD135 | 400V | 1500µF | 50×100 | M5 |
| CD135 | 400V | 1800µF | 64×96 | M5 |
| CD135 | 450V | 2200µF | 64×96 | M5 |
| CD135 | 450V | 3300µF | 64×130 | M5 |
| CD135 | 450V | 4700µF | 77×130 | M5 |
* Dimensions are reference values. Please confirm with the latest datasheet before PCB layout or production.
Installation & Usage Guidelines
- Polarity: Observe correct polarity. Reverse connection may cause heat generation, pressure rise, or rupture.
- Terminal Tightening: Use M5 bolts with recommended torque of 3.23 N·m. Over-tightening may damage the terminal.
- Ripple Current: Ensure ripple current does not exceed the rated value. Excessive ripple current accelerates electrolyte evaporation and shortens lifespan.
- Voltage Derating: For extended lifespan, operate at 80% of rated voltage when possible.
- Mounting Orientation: Can be mounted vertically or horizontally. Avoid placing the safety vent near heat-sensitive components.
- Storage: Store in a cool, dry place. Avoid direct sunlight and high humidity.
- Temperature Management: Keep ambient temperature below 85°C. Every 5–10°C increase above rated temperature approximately halves the capacitor life.
CD135 vs CD138 — Which to Choose?
| Feature | CD135 | CD138 |
|---|---|---|
| Operating Temp. | 85°C | 85°C |
| Load Life | 2000h | 5000h |
| Key Advantage | Standard, cost-effective | Long life, high reliability |
| Best For | General industrial use | Demanding, long-life applications |
Frequently Asked Questions
Q: What is the difference between CD135 and CD138?
A: CD135 has a 2000h load life at 85°C, while CD138 offers 5000h load life at the same temperature, making it suitable for applications requiring longer service life.
Q: Can I use a 400V capacitor in a 450V circuit?
A: No. Always select a capacitor with a voltage rating equal to or higher than your circuit's maximum operating voltage. Use 450V rated capacitors for 400V circuits.
Q: What is the recommended tightening torque for the screw terminals?
A: The recommended tightening torque is 3.23 N·m for the M5 screw terminals. Do not exceed this value to avoid terminal damage.
Q: Are these capacitors RoHS compliant?
A: Yes, all Jianghai CD135 series capacitors are RoHS compliant.
Q: What is the shelf life of these capacitors?
A: When stored properly in a cool, dry environment, the shelf life is approximately 500 hours at 85°C (unloaded condition). For long storage periods, re-forming may be required.
Q: Can I get samples before placing a bulk order?
A: Yes, we provide free samples for qualified customers. Please contact our sales team for sample requests.
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