TLPxxM/G/G-1 is a tripolar transient surge arrestor manufactured by ST Microelectronics. It is used for primary and secondary protection of sensitive telecom equipment. Its features include repetitive peak pulse current of 100A (10 / 1000µs), holding current of 150mA, low capacitance of 110pF, and low leakage current of 5µA. It has aging and noise resistant features. If destroyed, it will fall into short circuit, still ensuring protection. It is available in PowerSO-10TM and D2PAK packages for surface mount applications.
The TLPxxM/G/G-1 series are tripolar transient surge arrestors used for primary and secondary protection in sensitive telecom equipment. They protect analog and ISDN line cards, distribution frames, and terminal equipment from lightning and over‑voltage events.
The handbook contains product descriptions, electrical and thermal specifications, typical applications, functional holding‑current test procedures, mechanical dimensions, and recommended mounting substrates such as FR‑4, copper‑filled FR‑4, and insulated metallic substrate (IMS).
| Peak pulse current (Ipp) | 100 A (10/1000 µs) |
|---|---|
| Holding current (In) | 150 mA |
| Capacitance (C) | 110 pF typ. |
| Leakage current (Ir) | 5 pA max |
| Maximum operating junction temperature (Tj) | 150 °C |
| Junction‑to‑case thermal resistance (Rth j‑c) | 1.0 °C/W |
| Breakdown voltage (CCITT K20) | 4000 V |
The peak pulse current (Ipp) is rated at 100 A for a 10 µs/1000 µs waveform.
The holding current (In) is specified as 150 mA.
The device has a typical capacitance of 110 pF.
An insulated metallic substrate (IMS) provides the lowest thermal resistance, down to 8 °C/W.