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Lonestar 28V To 13.8V Step Down Converter TSO

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Lonestar 28V To 13.8V Step Down Converter TSO

https://www.roctexo.com/web/image/product.template/100969/image_1920?unique=8ef9bbe
Part numbers : RX1-11-03309 , LS03-05001-B , 11-03309
Unit of Measure: EA

577.36 EUR / EA 577.36 EUR 577.36 € excl. VAT

577.36 EUR / EA excl. VAT

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Availability
Up to 3 EA ready to ship on Thursday 2026-11-12
Order before 16:00 CET on Tuesday 2026-11-10
Up to 4 EA ready to ship on Monday 2026-11-16
Order before 16:00 CET on Tuesday 2026-11-10
5 EA available on request, inbound freight fee of 60 EUR applies
Special order from vendor stock.

The Lone Star Aviation LS03-05001-B is a DC-DC step-down converter configured to provide a regulated 13.8 VDC supply from a 28 VDC aircraft electrical system. It is designed for installations where 13.8 VDC equipment must be supplied from 28 VDC aircraft power.

  • Manufacturer part number: LS03-05001-B
  • Nominal configuration: 28 VDC input to 13.8 VDC output
  • Specified input range: 10–40 VDC
  • Output capability: 10 A continuous, 12 A peak
  • 5-pin D-sub connector interface
  • Protection functions specified by the manufacturer: over-current, over-voltage, over-temperature, short-circuit and reverse-polarity protection
  • RTCA DO-160G environmental testing stated by the manufacturer
  • FAA TSO approved, as stated in manufacturer documentation
  • Operating temperature: -55 °C to +70 °C

A compatible connector kit, part number LS03-05026-1, is identified by the manufacturer for installation and is not included with the converter unless separately specified.

Confirm the required installation configuration, electrical protection and approval basis with the applicable aircraft documentation and qualified maintenance personnel before installation.

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Orders with purchased items below 100.00 € incur a small order fee of 10.00 €. Both amounts exclude VAT. Shipping, other fees and core deposits do not count towards the limit.

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