Single-phase surge protective devices (SPDs) provide NEC-required protection against transient voltage surges from lightning strikes, current


Littelfuse CG3 two electrode high voltage (1.0 - 7.5 KV) devices are designed for surge protection and high isolation applications, and for applications for which bias voltages or signal levels of several hundred volts are normally present.
- Rugged ceramic-metal construction
- Low capacitance (<1.5 pF)
- Available in tape-and-reel packaging
- Available with or without leads
CG3 Parts
Filters
Showing 1 to 12 of 26 Total Results
Part Number | Actions | VMIN Spark (V) | VNom Spark (V) | VMAX Spark (V) | Max Impulse Sparkover Voltage @ 100V/µs (V) | Capacitance (Co) (pF) | Impulse Discharge Current @8/20µs (kA) | Electrodes | Failsafe | MSL | Agency Approvals |
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Part Number | Actions | VMIN Spark (V) | VNom Spark (V) | VMAX Spark (V) | Max Impulse Sparkover Voltage @ 100V/µs (V) | Capacitance (Co) (pF) | Impulse Discharge Current @8/20µs (kA) | Electrodes | Failsafe | MSL | Agency Approvals | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
800 | 1000 | 1200 | 1500 | 1 | 10 | 2 | No | MIL-STD-750D/1021 | cURus | |||
800 | 1000 | 1200 | 1500 | 1 | 10 | 2 | No | cURus | ||||
800 | 1000 | 1200 | 1500 | 1 | 10 | 2 | No | cURus | ||||
960 | 1200 | 1440 | 2000 | 1 | 10 | 2 | MIL-STD-750D/1021 | cURus | ||||
1200 | 1500 | 1800 | 2200 | 1 | 10 | 2 | No | MIL-STD-750D/1021 | cURus / TUV | |||
1200 | 1500 | 1800 | 2200 | 1 | 10 | 2 | No | cURus / TUV | ||||
1200 | 1500 | 1800 | 2200 | 1 | 10 | 2 | No | cURus / TUV | ||||
1600 | 2000 | 2400 | 3000 | 1 | 10 | 2 | No | MIL-STD-750D/1021 | cURus | |||
1600 | 2000 | 2400 | 3000 | 1 | 10 | 2 | No | cURus / CRU | ||||
1600 | 2000 | 2400 | 3000 | 1 | 10 | 2 | No | cURus / CRU | ||||
2000 | 2500 | 3000 | 3750 | 1 | 10 | 2 | No | MIL-STD-750D/1021 | cURus / TUV | |||
2000 | 2500 | 3000 | 3750 | 1 | 10 | 2 | No | cURus / TUV / CRU |
CG3 Applications

Single-Phase SPDs

Three-Phase SPDs
Three-phase surge protective devices (SPDs) provide NEC-required protection against transient voltage surges from lightning strikes, current
Highlights Section
- CRT terminal
- CATV equipment
- Antennas
- Power supplies
- Medical electronics
Series: CG3 Resources

Gas Discharge Tubes Catalog
GDTs dissipate voltage transients through a contained plasma gas. They have high insulation resistance plus low capacitance and leakage to ensure

Circuit Protection Selection Guide
Consult this guide to learn about circuit protection considerations and the solutions Littelfuse offers. Tables help match products with applications.