Littelfuse AC series two-electrode line protectors provide a high degree of surge protection in AC line applications. The two models, AC120 and AC240 are designed for use with 120VAC and 240VAC lines respectively. They are able to extinguish AC follow-on currents of at least 200A. 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.
The AC and CG3 series are two‑electrode gas plasma arresters (GDT) designed for surge protection in AC line applications and high‑isolation environments. The AC120 and AC240 models are suited for 120 VAC and 240 VAC lines, while the CG3 models cover 1.0 kV to 7.5 kV breakdown voltages. Typical applications include long and short branch circuits, power supplies, test equipment, submersible pumps, medical electronics, CRT terminals, CATV equipment, and antennas.
The datasheet lists key specifications such as low capacitance (<1.5 pF), operating temperature range –40 °C to +90 °C, and recommended soldering parameters (reflow up to 260 °C, wave soldering 100 °C–150 °C). Packaging options include core (no leads) bulk packs, leaded bulk packs, and leaded tape‑and‑reel formats.
| Operating Temperature Range | -40 °C to +90 °C |
|---|---|
| Maximum Reflow Temperature | 260 °C |
| Packaging – Tape & Reel | 500 pcs per reel |
| Breakdown Voltage (CG3 2.0 kV model) | 2400 V |
Reflow soldering should not exceed 260 °C, with a typical peak temperature of 260 °C and a temperature range of 150 °C to 200 °C during the process.
They are rated for operation from –40 °C up to +90 °C.