This document describes the features and characteristics of MU SC FC harsh environment attenuators and terminators, including user-friendly push-pull mechanism, guaranteed attenuation over a wide bandwidth, selectable attenuation levels, and maximum input power.
The MU-PJ series from Hirose is a push‑pull optical fixed attenuator designed for power level adjustment in fiber‑optic communication networks. It offers a user‑friendly mechanism and guarantees attenuation over a wide bandwidth covering 1310 ±30 nm and 1510‑1620 nm.
The device is built with a zinc‑alloy body and zirconia ferrules, supports SM fiber, and meets stringent environmental and mechanical test standards, including operating temperatures from –25 °C to +70 °C and storage temperatures down to –40 °C.
| Attenuation levels | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20 dB |
|---|---|
| Maximum input power | 200 mW |
| Operating temperature range | -25 °C to +70 °C |
| Storage temperature range | -40 °C to +85 °C |
| Fiber type | SM |
| Return loss (minimum) | 240 dB |
| Wavelength coverage | 1510‑1620 nm |
| Attenuation deviation (max) | 0.5 dB |
| Body material | Zinc alloy |
| Ferrule material | Zirconia |
The MU-PJ attenuator is offered in 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15 and 20 dB steps.
The device can handle up to 200 mW of input optical power.
It operates from –25 °C up to +70 °C and can be stored between –40 °C and +85 °C.
It is used for power level adjustment in optical fiber communication networks.