This document is about the user manual of a certain product of a certain brand. It introduces the function, usage method and precautions of the product.
The GR1A‑GR1M series are surface‑mount fast switching rectifiers covering reverse voltages from 50 V to 1000 V and forward currents up to 1 A. They feature a low‑profile plastic package with built‑in strain relief for automated placement and high‑efficiency switching.
Key electrical characteristics include maximum repetitive peak reverse voltage, RMS voltage, DC blocking voltage, forward surge current, reverse recovery time, junction capacitance, and thermal resistance. Mechanical data such as package dimensions, weight, and UL‑94 flammability rating are also provided, along with an operating temperature range of –55 °C to +150 °C. This manual is written in Chinese.
| Maximum repetitive peak reverse voltage (VRRM) | 50‑1000 V (GR1A‑GR1M) |
|---|---|
| Maximum RMS voltage (VRMS) | 35‑700 V (GR1A‑GR1M) |
| Maximum average forward rectified current (IAV) | 1.0 A |
| Maximum reverse recovery time (Trr) | 150‑500 ns (GR1A‑GR1M) |
| Typical junction capacitance (CJ) | 10.0‑7.0 F (GR1A‑GR1M) |
| Maximum thermal resistance (RJA) | 105.0‑32.0 W/°C (GR1A‑GR1M) |
| Operating temperature range | -55 °C to +150 °C |
They use a surface‑mount SMA molded plastic package over a passivated chip.
The devices can handle a maximum average forward rectified current of 1.0 A at TL = 90 °C.
They operate from –55 °C up to +150 °C.