KF-100uF-100V
High-voltage radial capacitor with 100uF and 100V rating for medium-voltage applications.
Product Overview
Description
The KF-100uF-100V is a high-voltage radial aluminum electrolytic capacitor designed for medium-voltage applications. With 100uF capacitance and 100V rating, it provides reliable filtering for 48V and 72V systems.
This capacitor features a 10mm diameter case with standard 5mm lead spacing. The high voltage rating makes it suitable for industrial and telecommunications applications.
Rated for 2000 hours at 85°C, this capacitor is suitable for industrial power supplies and control systems.
Product Series
KF
Primary Application
Industrial power supplies
Key Features
- High voltage 100V rating
- 100uF capacitance
- Standard 5mm lead spacing
- Compact 10mm diameter
- Taiwan quality
Specifications
| Capacitance | 100uF ±20% |
|---|---|
| Voltage Rating | 100V DC |
| Ripple Current | 0.6A @ 85°C, 120Hz |
| Temperature Range | -40°C to +85°C |
| Lifetime | 2,000 hours @ 85°C |
| Lead Spacing | 5mm |
| Dimensions | 10mm dia x 20mm L |
Applications
Industrial power supplies
Industrial automation and control
Telecommunications
Communication and interface
48V DC circuits
Electronic system design
Control systems
Industrial automation and control
FAE Expert Insights
"The KF-100uF-100V is perfect for 48V and 72V industrial systems. The 100V rating provides good margin for these voltage levels. I frequently recommend this for telecommunications power supplies and industrial control systems where higher voltage handling is required."
High-voltage radial for industrial applications
— Peter Wang, BeiLuo
Frequently Asked Questions
What is the maximum ripple current for the KF-100uF-100V?
The rated ripple current is 0.6A at 85°C and 120Hz. This rating provides reliable operation in medium-voltage applications. At lower temperatures, the capacitor can handle higher ripple currents - approximately 0.72A at 65°C.
For applications exceeding 0.6A ripple current, consider using multiple capacitors in parallel.
What is the expected lifetime of the KF-100uF-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.
For maximum lifetime, operate at lower temperatures with voltage derating.
What voltage derating is recommended for the KF-100uF-100V?
For this 100V rated capacitor, the maximum recommended operating voltage is 80V (20% derating). This provides good reliability margin for industrial applications. For critical applications, 50% derating to 50V provides even better reliability.
Design for 80% voltage derating for good reliability.
What is the ESR of the KF-100uF-100V?
The Equivalent Series Resistance (ESR) at 100Hz is approximately 0.5 Ohm. This ESR level is suitable for medium-voltage filtering applications. The ESR decreases with increasing temperature, improving performance at higher operating temperatures.
For applications requiring lower ESR, consider the KM low-impedance series.
Can the KF-100uF-100V be used in 48V systems?
Yes, this capacitor is ideal for 48V systems. The 100V rating provides good margin (52V above operating voltage). With 20% derating, the maximum operating voltage is 80V, which is well above 48V. This provides excellent reliability margin for 48V applications.
Excellent choice for 48V and 72V industrial systems.
What is the difference between KF-100uF-100V and KF-100uF-50V?
KF-100uF-100V and KF-100uF-50V have the same capacitance (100uF) but different voltage ratings (100V vs 50V). The 100V version is larger and more expensive but provides higher voltage capability. Select based on your voltage requirements.
Select KF-100uF-100V for 48V-72V systems. Select KF-100uF-50V for 24V-36V systems.