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TDK-Lambda’s ZWS-BAF series of PCB-type AC/DC power supplies is designed to meet the demands of a range of applications, including factory automation, test and measurement, and LED signage.

The devices combine high efficiency – even at low-load conditions – with a wide operating temperature range, small size and 10-year electrolytic capacitor life.

Offering features such as active power factor correction and high-input transient protection, the ZWS100BAF and ZWS150BAF series operate from a universal input of 85 to 265V AC or 120-370V DC.

Offered with a choice of output voltages from 3.3 to 48V, each model in the ZWS-BAF series can be adjusted by up to +/-10 per cent of its nominal voltage to accommodate non-standard system voltages.

In comparison with its first-generation ZWS-AF series, TDK-Lambda’s design of the ZWS-BAF PCB layout has minimised internal heat losses, resulting in smaller size.

The improved heat dissipation provides a wider operating temperature range of -10 to 70C, allowing 100-per-cent load operation in a 50C environment – efficiency of the ZWS150BAF-24 model reaches up to 90 per cent.

Over-current and over-voltage protection circuitry are standard features and an optional remote on/off is available.

With active power factor correction (PFC) that meets EN61000-3-2, the ZWS-BAF models have a 3kV AC input to output isolation and meet conducted and radiated EMC conforming to EN55011/EN55022-B, FCC-B, VCCI-B.

They are delivered with TDK-Lambda’s five-year warranty, are safety-approved to UL/CSA/EN60950-1 and EN50178 and carry the CE mark, according to the LV Directive.

TDK-Lambda is a subsidiary of the TDK Corporation, a leading global electronics company (

TDK-Lambda has been a major provider of power supplies for over 60 years.  The company designs and manufactures a wide range of AC-DC Power Supplies and DC-DC Converters for Industrial, Medical, Telecom, Datacom, and Test & Measurement applications worldwide.

With production facilities in Asia, America and EMEA, TDK-Lambda has positioned itself as one of the world’s largest manufacturers of power conversion products with recognized leadership in the
industrial market segment.

With our comprehensive 1.5W to 90kW range of AC/DC power supplies, DC/DC converters, Programmable DC power supplies and EMI noise filters, TDK-Lambda offers the right solution for a wide spectrum of applications.

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