The TLPxxM/G/G-1 series are bipolar transient surge arrestors used for primary and secondary protection in sensitive telecom equipment. The features include tripolar crowbar protection, voltage range selected for telecom applications, high repetitive peak pulse current, low holding current, low capacitance, and low leakage current.
The TLPxxM/G/G-1 series are tripolar transient surge arrestors designed for primary and secondary protection of sensitive telecom equipment. They feature a crowbar protection scheme, low capacitance (110 pF typ.) and ultra‑low leakage (5 pA max), making them suitable for analog, ISDN line cards, distribution frames and terminal equipment.
The document details electrical parameters such as peak pulse current (100 A at 10/1000 µs), holding current (150 mA), breakdown voltage up to 4000 V, and thermal resistance (1.0 °C/W). It also includes mechanical dimensions, package markings, functional holding‑current test procedures, and recommended mounting substrates (FR‑4, copper‑filled holes, IMS) for optimal thermal performance.
| 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 |
| Breakdown voltage (VBR) | 4000 V (CCITT K20) |
| Junction‑to‑case thermal resistance (Rth j‑c) | 1.0 °C/W |
| Storage temperature range | -55 °C to +150 °C |
| Maximum operating junction temperature (Tj) | 150 °C |
The device can handle a peak pulse current of 100 A with a 10/1000 µs waveform.
A GO‑NO‑GO test is used: the device is short‑circuited to set the holding current, then a 10 A surge (10/1000 µs) is applied and the device must turn off within 50 ms.