Electric Converter MEAN WELL SD-100B-24

The MEAN WELL SD-100B-24 is an electric converter delivering 100.8 W of output power in a compact housing (98 mm × 199 mm × 38 mm). It accepts a wide DC input range of 19–36 V and provides a regulated output with a maximum output current of 4.2 A. The unit includes built-in protections and an EMI filter, and is designed for applications that require a reliable, low-noise DC power source with isolation between input and output.

Advantages

The converter offers a wide input range, multiple protections including short-circuit, overload and over-voltage protection, and 1500 VAC input-to-output isolation. It features a built-in EMI filter and low ripple noise, a fixed switching frequency of 83 kHz, and has passed 100% full-load burn-in testing. The design follows safety considerations for 24 V systems and 48 V references, provides high reliability at low cost, and is supplied with a 2-year warranty.

Suitable for

• Industrial control systems and automation equipment
• Telecommunications and network devices
• Embedded systems and peripherals requiring 24 V power
• Battery-backed or vehicle power systems using 19–36 V DC

Key specifications

• Model: MEAN WELL SD-100B-24
• Output power: 100.8 W
• Input voltage: DC 19–36 V
• Output current: 4.2 A
• Dimensions (W×D×H): 98 × 199 × 38 mm
• I/O isolation: 1500 VAC
• Switching frequency: fixed 83 kHz
• Protections: short circuit, overload, over voltage
• EMI filter: built-in
• Warranty: 2 years

How to use

Install the SD-100B-24 on a suitable mounting surface ensuring adequate ventilation and clearance for cooling. Connect the DC input within the 19–36 V range to the input terminals, observing correct polarity. Connect the load to the output terminals and verify the output voltage and current requirements do not exceed the specified ratings. Observe standard safety practices and follow any additional installation instructions from the manufacturer.

Usage recommendations

For reliable long-term operation, avoid exceeding the rated input range and output current, provide sufficient airflow around the converter, and protect the unit from moisture and excessive vibration. Use appropriate fusing on the input side and verify compatibility with the system's grounding and isolation requirements.