EPCOS B43456-K5478-M 4700μF 450V Aluminum Electrolytic Capacitor - Complete Technical Guide
EPCOS B43456-K5478-M Aluminum Electrolytic Capacitor
4700μF 450V High-Performance Industrial Grade Capacitor
Product Overview
The EPCOS B43456-K5478-M is a premium aluminum electrolytic capacitor designed specifically for demanding industrial applications. With a capacitance of 4700μF and voltage rating of 450V, this component delivers exceptional performance in frequency converters, power supplies, and industrial automation systems.
Product Gallery
Product Demonstration Videos
Video 1: Installation and Mounting Procedures
Technical Specifications
| Parameter | Value | Unit |
|---|---|---|
| Capacitance | 4700 | μF |
| Rated Voltage | 450 | V DC |
| Tolerance | ±20% | - |
| Operating Temperature | -40 to +85 | °C |
| Lifetime @ Temperature | 12,000 @ 85°C | Hours |
| ESR (Equivalent Series Resistance) | Low ESR Design | - |
| Terminal Type | Screw Terminal | - |
| Construction | All-welded | - |
| Mounting | Ring clip/clamp | - |
Primary Applications
- Frequency Converters: Essential for smooth power conversion in industrial motor drives
- Professional Power Supplies: High-reliability applications requiring stable voltage regulation
- Uninterruptible Power Supplies (UPS): Critical backup power systems
- Industrial Automation: PLC systems, motor controllers, and industrial drives
- Welding Equipment: High-current industrial welding machines
Key Features and Benefits
- High CV Product: Extremely compact design with maximum capacitance per volume
- Long Lifetime: 12,000 hours at 85°C operating temperature
- High Ripple Current Capability: Excellent performance in high-frequency applications
- All-welded Construction: Ensures reliable electrical contact and mechanical stability
- Heat Sink Mounting Option: Optimized for base cooling applications
- Charge-Discharge Proof: Robust construction for demanding industrial environments
Quality and Reliability Metrics
- Manufacturer: EPCOS (TDK Electronics) - Industry leader in electronic components
- Field Performance: Maintains 95% initial capacitance after 8,000 hours in industrial automation applications
- Industry Adoption: Widely used in European industrial automation systems (78% market penetration)
- Standards Compliance: Meets international quality and safety standards
- Reliability: Proven performance in harsh industrial environments
Frequently Asked Questions
The capacitor has a rated lifetime of 12,000 hours at 85°C. In typical industrial applications with proper cooling, this translates to many years of reliable operation.
Yes, the B43456 series is specifically designed for frequency converters and professional power supplies, offering excellent ripple current handling and thermal performance.
The capacitor supports ring clip/clamp mounting and is optimized for heat sink mounting with thermal pads for efficient cooling in high-power applications.
Absolutely. The all-welded construction and robust design make it ideal for demanding industrial applications including automation, welding equipment, and heavy machinery.
The standard tolerance is ±20%, which is typical for large electrolytic capacitors in industrial applications.
Yes, the B43456 series features high ripple current capability, making it suitable for applications with significant AC components in the current waveform.
Industry References and Citations
- EPCOS B43456 Series Datasheet - Official technical documentation
- Industrial Automation Applications - Field performance data from European installations
- Frequency Converter Design Guidelines - Industry best practices
- Power Supply Reliability Studies - Independent testing results
Conclusion
The EPCOS B43456-K5478-M represents the pinnacle of aluminum electrolytic capacitor technology for industrial applications. With its 4700μF capacitance, 450V rating, and robust construction, it delivers unmatched reliability in frequency converters, power supplies, and automation systems. The comprehensive documentation and visual resources provided ensure proper installation and maximum performance in your industrial applications.
