24V, 6.3A Output — AC100-240V Input, Made in Japan
This is a Cosel LFA150F-24-J1 open-frame switching power supply module, removed from a working environment. It accepts universal AC100-240V input at 50/60Hz and outputs a regulated 24VDC at up to 6.3A, making it a good fit for control circuitry, relay banks, or auxiliary power in industrial and semiconductor process equipment. The unit is UL/cUL recognized and CE marked, and is made in Japan.
The board is built with a full open-frame switcher topology: an input EMI filter stage with two toroidal common-mode chokes and film capacitors, a bulk input electrolytic capacitor, two yellow-cased Cosel transformer/inductor modules (marked "LF15124TA" and "LF1513800"), an output choke, and dual blue electrolytic output filter capacitors. A voltage adjustment trim pot (VR601) allows fine output voltage tuning. Full visible component detail is listed in the table below.
This was removed from a working environment as a functional pull; it was not bench-tested in isolation prior to listing. A solid option for a spares kit or a repair project needing a compact 24V/150W-class industrial power supply.
| Manufacturer | Cosel Co., Ltd. |
| Model | LFA150F-24-J1 |
| Output Voltage | 24V |
| Output Current | 6.3A |
| Input Voltage | AC100-240V |
| Input Frequency | 50/60Hz |
| Input Current | 2.0A |
| Certifications | UL/cUL Recognized, CE Marked |
| Country of Manufacture | Made in Japan |
| Lot Number | 6202543HR |
| Form Factor | Open-frame PCB-mount switching power supply |
| Dimensions | Approx. 6" x 2.5" (measure prior to shipping quote) |
| Input EMI Filter Chokes | 2x toroidal common-mode wound chokes (one at each end of the input filter section) |
| Line Filter Capacitors | 2x blue-body electrolytic capacitors on input side |
| Transformer/Inductor Modules | 2x yellow-cased Cosel modules, marked "LF15124TA" and "LF1513800" |
| Bulk Input Capacitor | 1x large brown-body electrolytic capacitor (main DC bus filter) |
| Output Filter Capacitors | 2x blue-body electrolytic capacitors, labeled C513, C514 |
| Output Choke | 1x copper-wound toroidal output choke |
| Fuse | F101, 250V T5AL (5A slow-blow) |
| Relay | 1x black-body relay (soft-start/inrush limiting position) |
| Voltage Adjust | VR601 trim potentiometer, "V ADJ" silkscreen label |
| Additional Capacitor | C127 (near heatsink area) |
| Heatsinks | 2x aluminum heatsink brackets over switching devices |
| Connectors | CN4 header; white pin header connectors at both board ends (input/output interface) |
| Board Markings | Nameplate "LFA150F-24-J1," "COSEL," "MADE IN JAPAN," UL/CE marks, lot "6202543HR," caution/high-voltage warning labels near heatsink |