This document describes the parameters and characteristics of the BTW 68 (N) series silicon controlled rectifiers, including maximum current, maximum temperature range, and maximum voltage rating. This series of products features high surge capability, high stability, and reliability. It is suitable for power supplies with a frequency of up to 400Hz and resistive or inductive loads.
The BTW 68 (N) family of silicon controlled rectifiers from SGS‑THOMSON is designed for general‑purpose power‑supply applications up to 400 Hz on resistive or inductive loads. The device features high surge capability, high on‑state current and high stability and reliability.
Key specifications include an insulated voltage rating of 2500 VRMS, on‑state RMS current of 30 A (80 °C) or 35 A (85 °C), non‑repetitive surge peak current of 420 A, and a repetitive off‑state voltage rating up to 1200 V. Mechanical data such as package dimensions and recommended mounting torque are also provided.
| Insulated voltage rating | 2500 VRMS |
|---|---|
| On‑state RMS current (BTW 68) | 30 A @ 80 °C |
| Non‑repetitive surge peak current (tp=8.3 ms) | 420 A |
| Repetitive off‑state voltage (VDRM) | 200 V – 1200 V |
| Thermal resistance, junction‑to‑ambient (Rth j‑a) | 50 °C/W |
| Recommended mounting torque | 0.8 m·N (max 1 m·N) |
| Maximum lead temperature for soldering | 230 °C (10 s) |
| Junction temperature range | -40 °C to +150 °C |
| Package dimension A (length) | 15.10 mm – 15.50 mm |
The BTW 68 can carry 30 A RMS at 80 °C, while the BTW 68 N version can carry 35 A RMS at 85 °C.
It is rated for an insulated voltage of 2500 VRMS.
The recommended torque is 0.8 m·N, with a maximum allowable torque of 1 m·N.
One of the package dimensions (A) ranges from 15.10 mm to 15.50 mm.