Sumida Corp. has released its new CIUH10D Series of automotive-grade, low-profile surface-mount transformers for battery management systems (BMSes) in electric vehicles (EVs), industrial battery storage, and portable power applications. The AEC-Q200-qualified pulse transformers are housed in a low-profile 5-mm SMD package suited for high-density BMS designs.
(Source: Sumida Corp.)
The new CIUH10D46 (datasheet) and CIUH10D47 (datasheet) pulse transformers provide robust galvanic isolation and electromagnetic interference (EMI) suppression, which are essential for serial communication lines within daisy-chained BMS architectures, Sumida said.
Key specifications include a high isolation rating of 3,800 VDC (60 seconds) to meet high-voltage application requirements, an inductance range from 45 μH to 593 μH across variants, a low direct current resistance as low as 0.38 Ω for improved efficiency, and a low interwinding capacitance as low as 1.46 pF to reduce noise coupling. The operating temperature range is -40°C to 125°C.
The working voltage for the CIUH10D47 is 1,000 V and the 600 V for the CIUH10D46. The CIUH10D47 offers dual primary/secondary windings for multiple topology options. The CIUH10D46 is validated for use with Analog Devices’ isoSPI transceivers (ADBM56821 and ADBM56822), making it suited for developers using ADI’s BMS evaluation platforms. It is also compatible with other isoSPI transceiver chips.
The CIUH10D46 and CIUH10D47 are RoHS compliant. They are suited for automotive BMS (EVs, HEVs, and PHEVs); industrial energy storage and UPS systems; and portable and off-grid power solutions. They are available through Sumida’s global distribution network.
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