DC/DC Converter
URA_LD-20WR3 & URB_LD-20WR3 Series
2019.11.14-B/5 Page 1 of 9
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20W isolated DC-DC converter
Ultra-wide input and regulated dual / single output
CB Patent Protection RoHS
Ultra-wide 4:1 input voltage range
High efficiency up to 90%
No-load power consumption as low as 0.15W
I/O isolation test voltage1.5k VDC
Input under-voltage protection, output
short-circuit, over-voltage, over-current
protection
Operating ambient temperature range: -40℃
CISPR32/EN55032 CLASS A EMI compliant
without external components
Six-sided metal shielded package
Input reverse polarity protection available with
Chassis (A2S) or 35mm DIN-Rail mounting (A4S)
version
IEC60950, UL60950, EN60950 approved
Meets EN50155 railway standard
URA_LD-20WR3 & URB_LD-20WR3 series of isolated 20W DC-DC products with a 4:1 input voltage range. They feature efficiencies of up to
90%, 1500VDC input to output isolation, operating ambient temperature range of -40℃to +85℃, input under-voltage protection, output
short-circuit, over-voltage, over-current protection. They meet CLASS A of CISPR32/EN55032 EMI standards without external components,
optional packages are offered for chassis or DIN-rail mounting (A2S, A4S), adding additional input reverse polarity protection and they are
widely used in applications such as data transmission device, battery power supplies, telecommunication device, distributed power supply
system, hybrid module system, remote control system, industrial robot system and railway fields.
Full Load
Efficiency③(%)
Min./Typ.
Notes:
①Use “H” suffix for heat sink mounting, “A2S” suffix for chassis mounting and “A4S” suffix for DIN-Rail mounting. We recommend to choose modules with a heat
sink for enhanced heat dissipation and applications with extreme temperature requirements;
②Exceeding the maximum input voltage may cause permanent damage;