KHC Power Technology Co.,Ltd
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Railway DC DC converter 6W isolated DC-DC converter Ultra-wide input voltage and regulated dual/single output
Description
URA1D_YMD-6WR3&URB1D_YMD-6WR3 series are isolated 6W DC-DC converte rproducts with 40-160VDC input voltage with efficiencies of up to 86%, input to output isolation is tested with 250VDC and the converter safely operate ambient temperature of -40C to+85C, input under-voltage protection,output short-circutover-curent,over-voltage protection.They are widely used in railway vehicle applications using72V,96V and 110V battery voltages.
Features
Specification
| Selection Guide | |||||||
| Certification | Part No. ① | Input Voltage (VDC) | Output | Full Load Efficiency④ (%) Min./Typ. | Capacitive Load⑤ (µF)Max. | ||
| Nominal② (Range) | Max.③ | Voltage (VDC) | Current (mA) Max./Min. | ||||
|
EN/BS EN | URA1D05YMD-6WR3 |
1 10 (40- 160) |
170 | ±5 | ±600/0 | 78/80 | 470 |
| URA1D12YMD-6WR3 | ± 12 | ±250/0 | 82/84 | 100 | |||
| URA1D15YMD-6WR3 | ± 15 | ±200/0 | 83/85 | 100 | |||
| URB1D05YMD-6WR3 | 5 | 1200/0 | 78/80 | 1000 | |||
| URB1D12YMD-6WR3 | 12 | 500/0 | 82/84 | 470 | |||
| URB1D15YMD-6WR3 | 15 | 400/0 | 83/85 | 220 | |||
| URB1D24YMD-6WR3 | 24 | 250/0 | 84/86 | 100 | |||
| Note: 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; ②The minimum input voltage and starting voltage of A2S and A4S Model are 1VDC higher than those of DIP package due to input reverse polarity protection function; ③Exceeding the maximum input voltage may cause permanent damage; ④Efficiency is measure at nominal input voltage and rated output load; efficiencies for A2S and A4S Model’s is decreased by 2% due to the input reverse polarity protection circuit. ⑤The specified maximum capacitive load for Vo 1 and Vo2 output is identical. | |||||||
| Input Specifications | |||||
| Item | Operating Conditions | Min. | Typ. | Max. | Unit |
| Input Current (full load / no-load) | Nominal input voltage | -- | 68/3 | 70/8 | A |
| Reflected Ripple Current | Nominal input voltage | -- | 25 | -- | |
| Surge Voltage (1sec. max.) | -0.7 | -- | 180 |
VDC | |
| Start-up Voltage | -- | -- | 40 | ||
| Input Under-voltage Protection | 28 | 33 | -- | ||
| Start-up Time | Nominal input voltage & constant resistance load | -- | 10 | -- | ms |
| Input Filter | Pi filter | ||||
| Hot Plug | Unavailable | ||||
| Ctrl * | Module on | Ctrl pin open or pulled high (3.5- 12VDC) | |||
| Module off | Ctrl pin pulled low to GND (0- 1.2VDC) | ||||
| Input current when off | -- | 3 | 8 | A | |
| Note: *The Ctrl pin voltage is referenced to input GND. | |||||
| Mechanical Specifications | ||
| Case Material | Aluminum alloy | |
|
Dimensions | Horizontal package( without heat sink) | 25.40 × 25.40 × 1 1.70 mm |
| Horizontal package( with heat sink) | 25.40 × 25.40 × 16.20 mm | |
| A2S wiring package ( without heat sink) | 76.00 × 31.50 × 21.20 mm | |
| A2S wiring package( with heat sink) | 76.00 × 31.50 × 25.20 mm | |
| A4S rail package( without heat sink) | 76.00 × 31.50 × 25.80 mm | |
| A4S rail package( with heat sink) | 76.00 × 31.50 × 29.80 mm | |
|
Weight | Without heat sink | Horizontal package/A2S wiring package/A4S rail package | 12.5g/36.0g/56.0g (Typ.) |
| With heat sink | Horizontal package/A2S wiring package/A4S rail package | 17.0g/40.0g/59.0g (Typ.) | |
| Cooling Methods | Free air convection | ||
