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The SL Power Electronics MB28-1-A is a linear AC/DC converter designed for reliable power conversion in demanding applications. It delivers 28W of power with a single output of 1A and accepts a wide universal input voltage range of 100 to 240 VAC.
Key electrical specifications include a line regulation of ±0.05% and load regulation of ±0.05%. The output ripple is a maximum of 3 mV + 0.05% of the output voltage, peak to peak. Transient response is less than 50 microseconds for a 50% load change. The unit includes automatic current limit/foldback for short circuit protection and built-in overvoltage protection on 5V models.
This converter features chassis mounting for easy integration into systems. It operates within a temperature range of 0°C to 70°C with derating. The unit is approved by CE, cURus, and TUV, and is suitable for medical applications, with medical leakage current not exceeding 10 µA. It also exceeds FCC and CISPR22 Class B conducted emissions standards.
Additional features include remote sensing with built-in open sense lead protection and stability of ±0.05% for 24 hours after warmup. The transformer insulation meets Class F (155ºC) standards, and all electrolytic capacitors are rated at 105ºC.
The MB28-1-A accepts universal AC input from 100 to 240 VAC with tolerances: 100, 120, 215, 230, 240 VAC.
The chassis mount package measures 124.0mm x 101.6mm x 41.4mm (4.88" x 4.00" x 1.63").
Full rated output from 0°C to 50°C, derated linearly to 40% at 70°C.
Yes, it features automatic current limit/foldback short circuit protection.
Output ripple is 3 mV + 0.05% of output voltage, peak to peak maximum.
It is approved to CE, cURus, and TUV standards.