Pulse Electronics Introduces High Isolation Switch Mode Power Transformers

Pulse Electronics PH9185NL

Provide reinforced insulation power supply for RS485/RS232 transceiver ICs

Pulse Electronics introduces a new series of high isolation switch mode power transformers that provide a reinforced insulation power supply for RS485 and RS232 transceiver ICs. The transformers are designed on an SMD platform with offset pins to maintain a large separation between primary and secondary circuits. Applications include industrial control systems, building automation, smart grid, surveillance, and aeronautics. The Pulse Electronics PH9185NL transformers facilitate using a RS485/232 communications bus as a low cost alternative to Ethernet. They are compatible with the Maxim MAX253 power driver IC.

Pulse Electronics - PH9185NL

In accordance with IEC60950/EN61558, the construction of the PH9185NL series has been certified by UL/TUV for reinforced insulation up to a 400V working voltage. The design guarantees 8mm creepage and 4000Vrms isolation voltage to meet this requirement. The design also utilizes Pulse Electronics’ Class F insulation system

Pulse Electronics’ PH9185NL series consists of seven turns ratios to provide the required voltage to the IC from a range of low voltage levels, delivering up to 3W of power. The parts are RoHS compliant and packaged in trays or in tape and reel. Prices start at approximately $1.40 each for quantities of 10,000. High volume discounts are available. Samples can be requested for all parts in the series.

pulseelectronics.com

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