Introducing our new series of isolation power transformers: The PH9085 Series.

The PH9085 Series is part of our line of high-isolation power supply transformers that offer a range of insulation (functional to reinforced) and isolation (up to 5KVrms) capabilities. It’s ideal for isolation to communication interfaces such as RS485, CAN, MODBus, and ProfiBus for automation, automotive, and smart grid applications.

Gerard Healy, Product Manager for Pulse Electronics Power Business Unit, commented on this new series:

“Industrial communications interfaces provide isolation to protect peripheral devices from the hazardous voltages created by noisy environments. The PH9085 series uses fully insulated wire to deliver a safe voltage to transceiver circuitry, providing 2500Vrms isolation to the user/operator. These transformers are compatible with various push-pull driver ICs such as Maxim MAX253, Texas SN6501 and UCC2808, and Analog ADuM4070 and ADuM447x.”

PH9085 Features

The PH9085 series is a push-pull transformer that comes in an industry standard platform as a compact, surface mount package of 8x7x5mm. It provides a direct cross to the Wurth 760 390, Halo TGM-2xNSLF, and Murata 78 253 series of isolation transformers and is available in tube and tape-and-reel packaging.

  • Push Pull Converter Transformer
  • Compatible with MAXIM™ MAX253 to power RS-485/RS232 transceiver and other communication interfaces
  • 2.5KVrms isolation
  • Compact and cost effective industrial design
  • RoHS6 compliant and meet standard EIA481 requirements

PH9085 Mechanicals & Schematics


Prices start at about $0.67 (FCA HK) for 10,000 pieces. Lead time is eight weeks. Samples are available.

 Download Datasheet | View Press Release