SDI18-9-U2-P6

Polarization:	Positive Center
Weight:	0.319 lb (144.7g)
Cord Length:	59" (1.50m)
Input Connector:	IEC 320-C14
Approvals:	CE, cULus, NEMKOgs, PSE
Size / Dimension:	3.94" L x 1.97" W x 1.30" H (100.0mm x 50.0mm x 33.0mm)
Output Connector:	Barrel Plug, 2.5mm I.D. x 5.5mm O.D. x 9.5mm
Operating Temperature:	0°C ~ 40°C
Efficiency:	Level VI, CoC Tier 2
Applications:	ITE (Commercial)
Series:	SDI18-U
No Load Power Consumption:	100mW (Max)
Power (Watts):	20W
Current - Output (Max):	2.2A
Voltage - Output:	9V
Voltage - Input:	90 ~ 264 VAC
Input Type:	Cord
Form:	Desktop (Class I)
Region Utilized:	Europe
Part Status:	Active

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AC DC Desktop and wall Adapters SDI18-9-U2-P6: application field and working principleThe switching power supply of SDI18-9-U2-P6 is a variable frequency converter, which is one of the most widely used AC/DC power supply modules (including desktop and wall adapters). This product is widely used in Industrial automation, communication equipment, intelligent terminals, etc. Its input/output voltages can be adjusted to meet different requirements, and it has long service life.Application field:SDI18-9-U2-P6 runs at a frequency of 18-9V, which is suitable for a wide variety of AC/DC applications. This product is widely used in the following areas:1.Industrial automation: in industrial fields, such as power transformers, frequency converters, or other control systems, it can provide a stable DC power supply with great efficiency.2.Medical equipment: as an important power module in the medical industry, SDI18-9-U2-P6 can provide various voltage outputs with high accuracy for portable medical equipment and other particular applications.3.Consumer electronics: this product is also suitable for night lights, toys, Bluetooth speakers, electric fences, security systems and other consumer electronics equipment.4.Instrumentation: with the high current output characteristic of SDI18-9-U2-P6, it can be used as a power supply for various instrumentation equipment.Working principle:The main working principle of SDI18-9-U2-P6 DC/DC converter is based on the rectification of AC power and the conversion of the rectified power into DC power by means of pulse width modulation (PWM). The basic structure of the module is composed of a switch, an inductor, a diode, a rectifier capacitor and a control circuit.The working process of the module is completed by alternately connecting and disconnecting the switch, allowing the current to flow and allowing the voltage to rise. When the inductor stores energy, the switch is disconnected, and the inductor discharges the stored energy through the diode into the load and the rectifying capacitor, which is then converted into DC voltage and output.At the same time, the control circuit is used to adjust the pulse width of the switch and control the output voltage. The pulse width is proportional to the required output voltage, and is also adjusted according to the feedback value of the output voltage and the current, so as to achieve the stable output effect.In summary, SDI18-9-U2-P6 AC/DC power supply module is widely used in various fields. Its long service life, wide input/output voltage range and high accuracy make it an ideal power supply module for many applications. Its working principle is based on the principle of pulse width modulation (PWM) platform, which can precisely control the output voltage and current. In addition, this product is characterized by high efficiency and great safety performance.

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