The mini high voltage power modules from COUPLETECH is including PBC-450, TBC-450, and the main specifications is as follows: Outputvoltage: 10 450V, operating voltage: 3.3 5.5V, Output current: max. 0.3 mA, Operating temperature: -40 + 60Size: 25*25*5mm, Temperature sensor: SI-diode PT 1000 AD590. APPLICATIONS: Avalanche photodiodes, PIN photodiodes, also matching with DKDP pockels cell dirver, MgO:LN pockels cell driver, KTP pockels cell driver, BBO pockels cell driver, and so on. Description: The PBC-450 of DCDC convertershas been designed for optimum avalanche photodiode (APD) performance. Theoutput voltage is precisely adjustable and highly stable and the temperature coefficientof the output voltage can be exactly adapted to the properties of the APD. Theoutput current is limited to a safe level so that the APD is protected againstoverload. The output voltage can be adjusted with an external control voltage.By means of an additional control voltage the amplification of the APD can either be adjusted with a closed loop or beprecisely modulated. The device has a wide operating voltage range from 3.3to 5.5 V. A silicon diode or pt1000 is used as temperature sensor. Features: Positive or negative output voltage up to 450 V Adjustable temperature High accuracy < 0.5 % High stability < 0.03% Short-circuit proof Low ripple Compact shielded housing.