



VREG-2 USB-C Power Supply Module 3V/3A
Product Categories
Rosahl Membranes for Keeping 3D-Print Filament Dry
Full Range of Rosahl Dehumidifer Membranes
Accessories, Power Supplies, Measurement
Kits for 3D-Print Filament kits-3d-print-filament-dryboxes
Microcontroller Modules
CodeVIsionAVR Compiler
Knowledge Base
Frequetly Asked Questions
Technical Documentation
Product Description
NEW!!!
Assembled with Cables and Connectors!
The VRFEG-2 module is now available fully assembled with soldered wires and crimped flat connectors for the Rosahl M-Series membranes (M-1J, M-2J, M-3M, M-3J) and MDL-3. Select the appropriate option above and save soldering work.
The USB-C-VREG2 power supply module is a suitable and compact power supply solution for the Rosahl dehumidifers (up to M-3J1R/MDL-3) from USB-C ports. It delivers 3V DC at 3A rated current with fold-back current limiting.
Fold-Back Current Limiting
Due to the membrane being intrinsically hygroscopic, it absorbs humidity if no supply voltage is present. This moisture needs to be discharged on startup and leads to a significantly higher inrush-current that the regular operating current. During startup the supply voltage shall still not drop below 2V, otherwise moisture discharge is not possible or significantly delayed. Suitable current supplies are fold-back current limiting sources, which regulate the output current further down than pure constant current sources and hence maintain a certain output voltage.
Storage of 3D-Print Filament Spools
The M-1J1R, M-2J1R, M-3M1R and MDL-3 product pages shows using the dehumidifiers for dry storage of 3D-print filament spools. The USB-C-VREG2 module mates perfectly with the shown 3D-printed mounting accessories (mounting frames for different spool dry boxes), hence providing a compact and properly sealed solution.
Technical Parameters
Input Voltage | USB-C 5V DC |
Output Voltage | 3V DC |
Rated Current | 3000mA |
Current Regulation | Fold-Back Strombegrenzung |
Nennstrom | 350mA (abh. von rH) |
Dimensions | 16mm x 25mm x 3.9mm |
Connection | Solder Pads |

Anschluss und Pinout
Das Bild zeigt das USB-C-VREG2 Modul mit USB-C Buchse links und Lötpads für die Ausgangsspannung rechts.
Dokumentation
Weitere Informationen sind im Infosheet verfügbar.
Suitable Rosahl Membranes
The VREG-2 module can be used to supply the below Rosahl dehumidifier membranes:
Rosahl RS1 Dehumidifier Membrane
Rosahl M-1J1R Dehumidifier Membrane
Rosahl M-2J1R Dehumidifier Membrane
Rosahl M-3M1R Dehumidifier Membrane
Rosahl M-3J1R Dehumidifier Membrane
Rosahl MDL-3 Dehumidifier Membrane