SF-4700uF-100V
High-voltage snap-in capacitor with 4700uF and 100V rating for industrial applications.
Product Overview
Description
The SF-4700uF-100V is a high-voltage snap-in aluminum electrolytic capacitor designed for industrial power supply applications. With 4700uF capacitance and 100V rating, it provides excellent filtering for higher voltage systems.
This capacitor features a 25mm diameter case with snap-in terminals for secure mounting. The design provides good ripple current capability and reliable performance.
Rated for 2000 hours at 85°C, this capacitor is suitable for industrial power supplies and motor drives.
Product Series
SF
Primary Application
Industrial power supplies
Key Features
- High voltage 100V rating
- 4700uF capacitance
- High ripple current 4.5A
- Snap-in mounting
- Industrial grade
Specifications
| Capacitance | 4700uF ±20% |
|---|---|
| Voltage Rating | 100V DC |
| Ripple Current | 4.5A @ 85°C, 120Hz |
| Temperature Range | -40°C to +85°C |
| Lifetime | 2,000 hours @ 85°C |
| Terminal Spacing | 7.5mm |
| Dimensions | 25mm dia x 50mm L |
Applications
Industrial power supplies
Industrial automation and control
Motor drives
Motor drive and control systems
DC-DC converters
Power conversion and supply
FAE Expert Insights
"The SF-4700uF-100V is perfect for 72V and 96V industrial systems. The 100V rating provides good margin for these voltage levels. The 4700uF capacitance is well-suited for medium-power applications. I use this frequently in motor drive applications."
Excellent for higher voltage industrial systems
— James Liu, BeiLuo
Frequently Asked Questions
What is the maximum ripple current for the SF-4700uF-100V?
The rated ripple current is 4.5A at 85°C and 120Hz. This rating provides reliable operation in high-voltage industrial applications. At lower temperatures, the capacitor can handle higher ripple currents - approximately 5.4A at 65°C. For high-frequency applications, derating may be necessary based on ESR characteristics.
For applications exceeding 4.5A ripple current, consider parallel connection. Contact our FAE team for thermal analysis.
What is the expected lifetime of the SF-4700uF-100V?
The rated lifetime is 2,000 hours at 85°C. Using the Arrhenius equation, at 65°C the expected lifetime extends to 8,000 hours. At 45°C, lifetime increases to 32,000 hours. Every 10°C reduction approximately doubles the lifetime. Voltage derating also significantly extends lifetime.
For maximum lifetime, operate at lower temperatures with 80% voltage derating.
What voltage derating is recommended for the SF-4700uF-100V?
For this 100V rated capacitor, the maximum recommended operating voltage is 80V (80% derating). This provides good reliability margin for industrial applications. For critical applications, 50% derating to 50V provides even better reliability. The derating also provides margin for voltage transients common in industrial environments.
Design for 80% voltage derating for good reliability. Use 50% derating for critical applications.
What is the ESR of the SF-4700uF-100V?
The Equivalent Series Resistance (ESR) at 100Hz is approximately 0.08 Ohm. This provides good filtering performance for high-voltage applications. The ESR characteristics are optimized for industrial power supply frequencies. ESR decreases with temperature, improving performance at higher operating temperatures.
For applications requiring lower ESR, consider the SM series or parallel connection.
What are the mounting requirements for the SF-4700uF-100V?
This capacitor requires 7.5mm terminal spacing on the PCB. The 25mm diameter and 50mm length require adequate clearance in the enclosure. Ensure proper airflow for thermal management, especially when operating at high ripple currents. The snap-in terminals should fully engage with the PCB for secure mounting.
Verify PCB layout and enclosure fit before finalizing design. Ensure adequate thermal management.
Can the SF-4700uF-100V be used in parallel with other capacitors?
Yes, multiple capacitors can be connected in parallel to increase capacitance and share ripple current. This is common in high-power applications. Two capacitors in parallel provide 9400uF and can share the ripple current load. Ensure symmetrical layout for balanced current sharing.
For very high capacitance or current requirements, consider parallel connection.