The Blue Sky CircuLaser VPSL0635-005X5B is a InGaAlP laser diode with quantum well structure. It has an integrated beam correcting lens that eliminates most of the astigmatism that is inherent in diode lasers. It also has a built in photo diode for monitoring the laser output for use in automatic power control (APC) circuits. The common case pin is laser diode anode and photo diode cathode.
These are new diodes, individually characterized in factory envelopes.
Output Power: 5.0mW maximum.
Wavelength: 637nm typical, 645nm maximum, RED
Circularity: 1.2:1 maximum
Operating Voltage: 2.2 Volts typical
Threshold Current: 30mA typical
Operating Current: 40mA typical
Monitor Current: 150uA typical.
Operating Temperature: -10 to 50 deg.C
Package: TO-18, 5.6mm diameter base
Note: Due to the sensitive nature of laser diodes, there is no warranty or exchanges on these items.
Factory spec sheet found HERE