The HE383B-2/HEM383B-2 is an integrated broadband amplifier with a frequency range of 100 to 600 MHz, a low noise of 1.7 dB (typical), good 50Ω impedance matching, easy cascade use, a microwave thin-film circuit structure, stable and reliable electrical performance, and a standard hermetically sealed metal tube shell. It satisfies military temperature working conditions of -55℃ to +85℃.
This document describes the HE383B-2/HEM383B-2 integration broadband amplifier. It lists key performance characteristics such as a 100‑600 MHz frequency range, typical noise figure of 1.7 dB, and good 50 Ω impedance matching for easy use. The amplifier is packaged in a metal‑sealed tube and offers a maximum input power of +18 dBm.
Installation notes include recommended biasing components (3.3 µF–22 µF capacitors, 3300 pF–6800 pF capacitors, etc.), static‑discharge precautions, and a SMA‑type connector for the RF interface. Operating temperature limits are –55 °C to +85 °C for normal use and up to +125 °C for storage. This manual is written in Japanese.
| Frequency Range | 100‑600 MHz |
|---|---|
| Typical Noise Figure | 1.7 dB |
| VSWR | ≤ 2.0:1 (typical 1.5:1) |
| Maximum Input Power | +18 dBm |
| Maximum Operating Temperature | +125 °C |
The amplifier operates from 100 MHz to 600 MHz.
The typical noise figure is 1.7 dB.
The maximum input power is +18 dBm.
The VSWR is specified as up to 2.0:1, typically 1.5:1.