DEPARTMENTS: NOTABLE & NEWSWORTHY

    Power Transformer Offers Enhanced DC/DC Power Conversion

    11/21/2019
    New Transformer Supports IEEE 802.3 af-Compliant, Integrated PoE Powered Device and Pulse Width Modulation Controller Applications

    Bourns, Inc., announced an addition to the company's flyback power transformer line. Designed to support IEEE 802.3 af-compliant, integrated Power-over-Ethernet (PoE) Powered Device (PD) and Pulse Width Modulation (PWM) controller applications, Bourns Model SM13117EL provides DC/DC power conversion in isolated mode.

    The SM13117EL flyback transformer features 13 watts of output power, 36 - 72 VDC/ 250 kHz input, 12 VDC/1.08 amp output and 1.5k Vrms withstanding voltage. This low profile, small form factor PoE flyback transformer also offers an extended -40 to +125 °C operating temperature range, low leakage inductance and excellent EMI performance. Ensuring safe operation, the electrical insulation of the transformer complies with the UL 1446 Class B (130 °C) Insulation System. The transformer bobbin carries the UL 94 V-0 flammability rating.

    The features of Bourns' latest flyback power transformer make it an excellent power conversion solution for a broad range of PoE-powered devices including VoIP phones, WLAN access points and network cameras as well as with integrated PoE PD interface and PWM controllers offered by several leading IC manufacturers.

    Additional company and product information is available at www.bourns.com.

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    Power Systems Design

    Power Systems Design is a leading global media platform serving the power electronics design engineering community. It delivers in-depth technical content, industry news, and product insights to engineers and decision-makers developing advanced power systems and technologies.

    Published 12× per year across North America and Europe, Power Systems Design is distributed through online and fully digital editions, complemented by eNewsletters, webinars, and multimedia content. The platform covers key areas including power conversion, semiconductors, renewable energy, automotive electrification, AI power systems, and industrial applications—supporting innovation across the global electronics industry.