The Mitsubishi ML920J16S-21 are DFB (Distributed Feedback) laser diodes emitting light beam with emission wavelength around 1470 nm.
They are well suited for light source in long distance digital transmission application of coarse WDM.
They are hermetically sealed devices with the photo diode for optical output monitoring.
These are new diodes, individually characterized, in factory envelopes.
Output Power: 5 mW
Wavelength: 1470 nm typical, +/-3 nm
Operating Voltage: 1.0 Volts typical
Threshold Current: 6 mA typical
Operating Current: 21 mA typical
Monitor Current: 500 uA typical
Package: TO-18, 5.6 mm diameter base.
A factory spec sheet can be found HERE
Note: Due to the sensitive nature of laser diodes, there is no warranty or exchanges on these items.