Overview
The NEC FYD 2.2F 5.5V capacitor is a high-capacitance supercapacitor engineered by NEC TOKIN for reliable power backup in electronic systems. With a rated capacity of 2.2 farads and voltage rating of 5.5V, this component is ideal for maintaining system integrity during brief power interruptions or battery transitions. The FYD series combines proven supercapacitor technology with NEC’s manufacturing standards for dependable performance in industrial, commercial, and consumer applications.
Key Features
- 2.2 farad capacitance at 5.5V nominal rating
- Supercapacitor design for extended energy storage and backup
- Suitable for memory preservation during power loss
- Compact form factor for space-constrained installations
- Low leakage and long shelf life
- RoHS compliant for environmental standards
Technical Specifications
| Capacitance | 2.2 F |
| Rated Voltage | 5.5 V |
| Series | FYD |
| Manufacturer | NEC / NEC TOKIN |
| Component Type | Supercapacitor (Double-Layer Capacitor) |
| Typical Operating Temp Range | -25°C to +60°C |
| Application Class | Memory Backup, Power Assist |
| Lead Configuration | Radial |
Typical Applications
- Memory Backup: Maintaining CPU and system RAM during brief power interruptions or battery exchanges in PLCs, micro-controllers, and industrial equipment.
- Real-Time Clock Backup: Keeping real-time clock (RTC) circuits operational during power loss in automation controllers and data loggers.
- Consumer Electronics: Power assistance in programmable thermostats, copiers, vending machines, and point-of-sale terminals.
- Traffic Control Systems: Backup power for traffic signal controllers and intelligent transportation systems.
- Metering & Monitoring: Energy storage for automatic electricity counters, flow meters, and process control monitoring devices.
Compatibility & Replacements
Compatible With
- Allen-Bradley CompactLogix and ControlLogix systems (via external power backup circuits)
- Siemens S7-200/300/400 PLCs (memory backup applications)
- Mitsubishi and Omron industrial controllers
- Generic embedded systems and microcontroller boards
- Battery backup and uninterruptible power supply (UPS) circuits
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. Original NEC FYD 2.2F/5.5V units may have multiple suffix variations (e.g., C8 279). Confirm exact part number with your equipment documentation.
Works With
- Generic power backup and energy storage circuits
- Custom memory backup designs and BIOS batteries
- Real-time clock (RTC) hold-up power supplies
- Industrial automation and control system peripheral circuits
- No software or firmware integration required (passive component)
