Recom Switching Power Supply, RAC02-05SE/277/W, 5V dc, 400mA, 2W, 1 Output, 120 → 430 V dc, 85 → 305 V ac

The Recom ultra compact 2W wired RAC02-SE/277/W power modules are available with output voltages of 3.3, 5, 12 and 24V and the input to output isolation is 3kVAC/1min. With a standby consumption of 35mW maximum, the mini power supplies are particularly suitable for energy-saving sleep mode and standby applications.


One of the most important features is the extended operating temperature range, as a consequence this series of power modules can now be used in areas where temperatures drop as low as -40°C.

Because of its compact design (height <18mm), it is a versatile solution for home automation and other similar applications. Complete with an integrated input filter, the series has enhanced EMI performance and complies with EN55022, class B. The mini power supplies are also protected against short circuit with fully automatic restart after the error has been solved. The converters are EN/UL60950-1 certified and come complete with a 3 year warranty.

Extended operating temperature range (-40°C to +85°C)
Reliable even at freezing temperatures
Extremely compact
35mW max. No Load Power Consumption
Efficiency up to 76%
Isolated Output 3kVAC / 1 min
SCP, OVP Protection
Wide universal input range: 85-305VAC
Maximum 40mW consumption at idle
Suitable for the supply of sensors and standby equipment
Short circuit proof with automatic restart after fault elimination
Wired connection

EN60335
EN55022 Class B
IEC/EN/UL 60950

Transforming your energy inputs is child's play for this RECOM switching power supply. It takes AC or DC voltage and delivers a regulated output of 5V DC that works dependably with low-power circuits. Isolation of the input and output boosts safety by keeping your currents separated. Short-circuit and overvoltage protection prevents damaging currents from running amok, while filters stop electromagnetic noise from interfering with the switch's reliable function. No-load power consumption of 35mW means this is an option that won't waste energy when your machine or appliance is on standby or in sleep mode.

• Wide operating temperature range between -40°C and +85°C to handle harsh conditions
• Colour-coded conductors mean you won't get your wires crossed when connecting your supply
• Light weight of 25g for use in portable equipment

• Security systems
• Consumer electronics
• Industrial computing
• Domestic appliances

Dimensions of 33.7 (L) x 22.2 (W) x 17.75mm (D) mean this switching power supply is compact, so it's easier to fit in small machines or setups where space is tight.

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