The KAS4-9 is a 4W PCB-mount AC-DC power supply designed for wide input voltage range operation from 90 to 305Vac, with no earth ground required due to Class II double insulation. It delivers 9V at 0.444A with a maximum ripple and noise of 200mVpk-pk and operates efficiently at 75%. The unit supports operating temperatures from -40°C to +70°C, has a hold-up time greater than 15ms, and consumes less than 0.3W at no load. It complies with IEC/CSA/UL/EN 62368-1 and EN 55032 Class B emissions standards. The device measures 37.0 x 27.5 x 17.5mm and weighs 26g, with a plastic resin case rated UL 94V-0.
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.
Designed to meet the household requirements of 60335-1 the KAS series with its wide operating temperature range up to 80°C, and start-up temperature of -40°C, is suitable for both domestic and industrial applications. The encapsulated board mounted power supplies do not need a ground connection and are available in 4W power levels. The KAS series provide an off-load power consumption less than 0.3W and Class B EMC performance.
Features
Applications for this product
POWER SUPPLY, AC-DC, 9V, 0.444A; No. of Outputs:1 Output; Output Power Max:4W; Output Voltage - Output 1:9V; Output Current - Output 1:444mA; Output Voltage - Output 2:-; Output Current - Output 2:-; Output Voltage - Output 3:- RoHS Compliant: Yes
| TDK-Lambda Americas Inc. | TDK-Lambda Europe GmbH | Newark, An Avnet Company | |
|---|---|---|---|
| Product Category | Power Supplies | Power Supplies | Power Supplies |
| Product Number | KAS4-9 | KAS4-9 | 24AC6311 |
| Product Name | AC-DC Power Supplies | 4W Wide AC-DC Input PCB Mount Power Supplies | Power Supply, Ac-Dc, 9V, 0.444A; No. Of Outputs Tdk-Lambda |
| Type | DC Power Supply | DC Power Supply | DC Power Supply |
| Technology | Switching Power Supply | ||
| Form Factor | Board Mount | Board Mount | |
| Features | Small size No need for external components Class II (no ground needed) | ||
| Operating Temperature | -40 to 70 C (-40 to 158 F) | -40 to 70 C (-40 to 158 F) |
