There is a Tray solid enclosure around the optical attenuator.It is estimated that the minimal operating temperature of the Attenuator is -55°C.Temperatures higher than 150°C are not recommended for operation of the RF Attenuator.
250-50RM-S Features
-55°C degrees Celsius Above 150°C degrees Celsius
250-50RM-S Applications
There are a lot of Anaren 250-50RM-S Attenuators applications.