over-voltage, over-current protection and are offered with various mounting options idealy suiting electronic equipment and railway vehicle applications using 72V, 96V and 110V battery voltages.
Features
Operating ambient temperature range -40℃ to+85℃ EN50121-3-2 & CISPR32/EN55032 CLASS A EMI Input Reverse Polarity Protection available with
Specificatioin
| Selection Guide | |||||||
| Certification | Part No. ① | Input Voltage (VDC) | Output |
Full Load Efficiency ③(%) Min./Typ. |
Max. Capacitive Load(µF) |
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| Nominal (Range) | Max.② | Voltage (VDC) |
Current (mA) Max./Min. |
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|
CE |
URB1D03LMD- 10WR3 |
1 10 (40- 160) |
170 |
3.3 | 2400/0 | 74/76 | 5400 |
| URB1D05LMD- 10WR3 | 5 | 2000/0 | 78/80 | 5400 | |||
| URB1D12LMD- 10WR3 | 12 | 833/0 | 82/84 | 470 | |||
| URB1D15LMD- 10WR3 | 15 | 667/0 | 82/84 | 330 | |||
| URB1D24LMD- 10WR3 | 24 | 417/0 | 83/85 | 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; ②Absolute maximum stress rating without damage (not recommended); ③Efficiency is measured 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. |
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| Input Specifications | ||||||
| Item | Operating Conditions | Min. | Typ. | Max. | Unit | |
|
Input Current (full load / no-load) |
Nominal input voltage | 3.3V output | -- | 95/3 | 98/8 |
|
| Others | -- | 110/3 | 117/8 | |||
| Reflected Ripple Current | Nominal input voltage | -- | 25 | -- | ||
| Surge Voltage (1sec. max.) | -0.7 | -- | 180 |
VDC |
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| Start-up Voltage | 100% load | -- | -- | 40 | ||
| Shut-down Voltage | 28 | 33 | -- | |||
| Start-up Time | Nominal input voltage & constant resistance load | -- | 10 | -- | ms | |
| Input Filter | Pi filter | |||||
| Hot Plug | Unavailable | |||||
| Output Specifications | ||||||
| Item | Operating Conditions | Min. | Typ. | Max. | Unit | |
| Voltage Accuracy | 0%- 100% load | -- | ± 1 | ±3 | % | |
| Linear Regulation | Input voltage variation from low to high at full load | -- | ±0.2 | ±0.5 | ||
| Load Regulation | 0%- 100% load | -- | ±0.5 | ± 1 | % | |
| Transient Recovery Time |
25% load step change, nominal input voltage |
-- | 300 | 500 | µs | |
| Transient Response Deviation | 3.3V/5V output | -- | ±3 | ±8 | % | |
| Others | -- | ±3 | ±5 | |||
| Temperature Coefficient | Full load | -- | ±0.02 | ±0.03 | %/℃ | |
| Ripple & Noise① | 20MHz bandwidth, 5%- 100% load | -- | 50 | 100 | mV p-p | |
| Over-voltage Protection |
Input voltage range |
1 10 | -- | 160 | %Vo | |
| Over-current Protection | 120 | -- | 210 | %Io | ||
| Short-circuit Protection | Continuous, self-recovery | |||||
| Note: ①Ripple & Noise at＜5% load is 5%Vo max. The ”parallel cable”method is used for Ripple and Noise test, please refer to DC-DC Converter Application Notes for specific information. | ||||||
| Mechanical Specifications | |||
| Case Material | Aluminum alloy | ||
|
Dimensions |
Horizontal package (without heat sink) | 50.80 × 25.40 × 1 1.80 mm | |
| Horizontal package (with heat sink) | 51.40 × 26.20 × 16.50 mm | ||
| A2S chassis mounting (without heat sink) | 76.00 × 31.50 × 21.20 mm | ||
| A2S chassis mounting (with heat sink) | 76.00 × 31.50 × 25.30 mm | ||
| A4S Din-rail mounting (without heat sink) | 76.00 × 31.50 × 25.80 mm | ||
| A4S Din-rail mounting (with heat sink) | 76.00 × 31.50 × 29.90 mm | ||
|
Weight |
without heat sink | Horizontal package/A2S chassis mounting/A4S Din-rail mounting | 26.0g/48.0g/68.0g(Typ.) |
| with heat sink | Horizontal package/A2S chassis mounting/A4S Din-rail mounting | 34.0g/56.0g/76.0g(Typ.) | |
| Cooling Methods | Free air convection | ||
Dimensions and Recommended Layout
Our products are sold all over the world, you can rest assured.
