Bourns SM91519L and SM91527L series BMS signal transformers

Bourns Magnetics offers the model SM91519L and SM91527L BMS signal transformers. These single channel, reinforced insulation transformers include common mode chokes for noise rejection in BMS applications.

These models work well with the NXP Model MC33771C series and Analog Device’s model LTC6804/681X series. These BMS signal transformers offer a working voltage of up to 1,500VDC and a hi-pot isolation voltage of up to 6,400VDC (SM91519L) and 7,640VDC (SM91527L) with an extended operating temperature range of -40°C to +125°C.

The solid design of the SM91527L transformer can help customers pass the partial discharge test per IEC 60664 up to 2,250V and the impulse voltage test up to 12kV (1.2μS/50μS).

Features

• Reinforced insulatioper IEC 62477-1, IEC 60664-1 and IEC 62368-1
• UL recognized: file number E515965 per UL62368-1
• Up to 1,500VDC working voltage and Hi-pot up to 6,400VDC (SM91519L) and 7640VDC (SM91527L)
• Creepage distance: 15mm minimum; clearance distance: 14mm minimum
• Supports serial daisy chain/Iso SPI communication
• Developed for use with the NXP Model MC33771C series and Analog Device’s model LTC6804/681X series
• RoHS compliant*

Applications

• Battery management systems
• Energy storage systems

_{* RoHS Directive 2015/863, Mar 31, 2015 and Annex.}