The CSS280-28 is a 280W AC-DC medical power supply with a 3 x 5 x 1.18 inch (76.2 x 127 x 30 mm) footprint, designed for convection or forced air cooling. It provides a 28V output at up to 10A (280W) under forced air cooling and 7.5A (210W) under convection, with 280mV peak-to-peak ripple. It supports a 90-264VAC input range, meets EN61000-3-2 for power factor correction, and complies with UL/EN/IEC60601-1, UL/EN/IEC60950-1, and IEC60601-1-2 Ed4 safety and immunity standards. The unit features dual input fuses, remote on/off control, a standby +5V/0.5A output, and a +12V/0.3A fan supply. Efficiency is typical at 91%, with a hold-up time of 10ms at 115VAC. It operates from -20°C to +70°C with linear derating and includes overcurrent, overvoltage, and overtemperature protection. Weight is 350g, and it carries a three-year warranty.
AC-DC converters have the functionality to extract a stable DC power supply by rectifying and controlling commercial power supplies. TDK offers an abundant lineup of TDK-Lambda brand AC-DC switching power supplies that adopt the "switching method" for the industrial equipment market. These power supplies are available in unit types, PC board types, power module types, on-board types, and DIN rail mount types, with a wide-ranging product lineup from models with a small capacity of several W to models with a large capacity exceeding 2 kW. TDK-Lambda offers "standard power supplies" that meet the various needs of its customers for keeping up with the changing times, including miniaturization and efficiency enhancement, compliance with safety standards, support for wide input, compliance with EMI (electromagnetic interference) standards and higher harmonic current regulation, compliance with the RoHS directive, and the adoption of digital control technologies.
Open Frame AC DC Converters 1 Output 28V 7.5A 90 ~ 264 VAC Input
POWER SUPPLY, AC-DC, 28V, 7.5A; Power Supply Approvals:ITE & Medical; No. of Outputs:1 Output; Power Rating (Forced Cooling):280W @ 18CFM; Power Rating (Convection Cooling):210W; Input Voltage VAC:90V AC to 264V AC RoHS Compliant: Yes
| TDK-Lambda Americas Inc. | DigiKey | Newark, An Avnet Company | |
|---|---|---|---|
| Product Category | Power Supplies | Power Supplies | Power Supplies |
| Product Number | CSS280-28 | 285-CSS280-28-ND | 81Y1090 |
| Product Name | AC-DC Power Supplies | AC DC Converters | Power Supply, Ac-Dc, 28V, 7.5A; Power Supply Approvals Tdk-Lambda |
| Type | DC Power Supply; Medical Power Supply | AC/DC Converter; Medical Power Supply; 1 | DC Power Supply |
| Technology | Switching Power Supply | ||
| Form Factor | Open Frame | Open Frame | |
| Features | Medical and Industrial certifications Industry standard footprint Dual input fuses | Power Factor Correction | |
| Operating Temperature | -20 to 70 C (-4 to 158 F) | 0 to 70 C (32 to 158 F) |
