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Home > Polytron Power Supplies > Polytron HWB75 Series, DC-DC Converters, 75 Watt, Half Brick, 4:1 Ultra Wide Input Range, 2.28" x 1.45" x 0.50"
Polytron HWB75 Series, DC-DC Converters, 75 Watt, Half Brick, 4:1 Ultra Wide Input Range, 2.28" x 1.45" x 0.50"
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Price (Each): Call or e-mail for quotes or to order.
Available to Order
Item Number: HWB75
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Half-brick for railway applications
Ideal for railways applications, our 75 watt half-brick DC-DC converter features high efficiency up to 91%, 3000 Vac reinforced insulation and no minimum load required. This series meets EN50155, EN50121-3 and EN61373 requirements and UL60950-1, EN60950-1 and IEC60950-1 safety standards.
Daburn Part
Number |
Input Voltage
Range (Vdc) |
Output Voltage
(Vdc) |
Output Current
Full Load
(A) |
Input Current
No Load
(mA) |
Efficiency
% |
Max. Capacitor
Load µF |
| Single Output |
| HWB75-24S33 |
9 – 36 |
3.3 |
20 |
85 |
87 |
60600μF |
| HWB75-24S5 |
5 |
15 |
120 |
88 |
30000μF |
| HWB75-24S12 |
12 |
6.3 |
185 |
88 |
5250μF |
| HWB75-24S15 |
15 |
5 |
185 |
88 |
3330μF |
| HWB75-24S24 |
24 |
3.2 |
85 |
87 |
1330μF |
| HWB75-24S28 |
28 |
2.7 |
85 |
87 |
960μF |
| HWB75-24S48 |
48 |
1.6 |
85 |
87 |
330μF |
| HWB75-48S33 |
18 - 75 |
3.3 |
20 |
60 |
88 |
60600μF |
| HWB75-48S5 |
5 |
15 |
60 |
90 |
30000μF |
| HWB75-48S12 |
12 |
6.3 |
90 |
90 |
5250μF |
| HWB75-48S15 |
15 |
5 |
50 |
89 |
3330μF |
| HWB75-48S24 |
24 |
3.2 |
50 |
88 |
1330μF |
| HWB75-48S28 |
28 |
2.7 |
50 |
88 |
960μF |
| HWB75-48S48 |
48 |
1.6 |
50 |
87 |
330μF |
| HWB75-110S33 |
43 - 160 |
3.3 |
20 |
10 |
89 |
60600μF |
| HWB75-110S5 |
5 |
15 |
10 |
91 |
30000μF |
| HWB75-110S12 |
12 |
6.3 |
10 |
91 |
5250μF |
| HWB75-110S15 |
15 |
5 |
10 |
91 |
3330μF |
| HWB75-110S24 |
24 |
3.2 |
10 |
90 |
1330μF |
| HWB75-110S28 |
28 |
2.7 |
10 |
90 |
960μF |
| HWB75-110S48 |
48 |
1.6 |
10 |
90 |
330μF |
Input and Output Specifications:
INPUT
- Voltage range
- 24 Vdc nominal input: 9 to 36 Vdc
- 48 Vdc nominal input: 18 to 75 Vdc
- 110 Vdc nominal input: 43 to 160 Vdc
- Start up voltage
- 24 Vdc nominal input: 9 Vdc
- 48 Vdc nominal input: 18 Vdc
- 110 Vdc nominal input: 43 Vdc
- Shutdown voltage
- 24 Vdc nominal input: 7.5 Vdc
- 48 Vdc nominal input: 16 Vdc
- 110 Vdc nominal input: 36 Vdc
- Start up time
- Power up, 110 Vdc nominal input: 60 mS
- Power up, others: 25 mS
- Remote ON/OFF, 110 Vdc nominal input: 60 mS
- Remote ON/OFF, others: 25 mS
- Input surge voltage
- 24 Vdc nominal input: 50 Vdc
- 48 Vdc nominal input: 100 Vdc
- 110 Vdc nominal input: 185 Vdc
- Input filter: Pi type
- Remote ON/OFF
- Positive logic (Option)
- DC-DC ON: Open or 3 to 12 Vdc
- DC-DC OFF: Short or 0 to 1.2 Vdc
- Negative logic (Standard)
- DC-DC ON: Short or 0 to 1.2 Vdc
- DC-DC OFF: 3 to 12 Vdc
- Input current of control pin: -0.5 to 1 mA
- Remote off input current: 3 mA
OUTPUT
- Voltage accuracy: ±1%
- Line regulation
- Low line to high line at full load: ±0.1%
- Load regulation
- No load to full load: -20 to 10%
- Voltage and adjustability: -20 to 10%
- Maximum output deviation inclusive of remote sense
- Remote sense: 10%
- Ripple and noise (measured by 20 MHz bandwidth)
- 3.3 and 5 Vout: 75 to 100 mVp-p
- 12 and 15 Vout: 100 to 125 mVp-p
- 24 and 28 Vout: 200 to 250 mVp-p
- 48 Vout: 300 to 350 mVp-p
- Temperature coefficient: ±0.02%/°C
- Transient response recovery time
- 25% load step change: 200 to 250μS
- Over voltage protection: 115 to 130%
- Over load protection
- Percent of lout rated, hiccup mode, 110Vin(nom): 150%
- Others: 110 to 140%
- Short circuit protection: continuous, automatic recovery
More Specifications:
GENERAL
- Efficiency: 87 to 91%
- Isolation voltage
- Input to output: 3000 Vac, min. 1 minute
- Input to case: 1500 Vac, min. 1 minute
- Isolation voltage
- Input to output: 2250 Vdc, min. 1 minute
- Input to case: 1600 Vdc, min. 1 minute
- Isolation resistance: 500 Vdc
- Isolation capacitance: 2500 pF
- Switching frequency
- 110 Vdc nominal input: 270 to 330 kHz
ENVIRONMENTAL
- Operating case temperature
- Over temperature protection: 115°C
- Short temperature range
- Terminal block type: -40 to 105°C
- Others: -55 to 125°C
- Thermal impedance
- Module without assembly option: 6.7°C/W
- Heat sink type with 0.25" height: 5.4°C/W
- Heat sink type with 0.45" height: 4.7°C/W
- Thermal shock: MIL-STD-810F
- Shock: EN61373, MIL-STD-810F
- Vibration: EN61373, MIL-STD-810F
- Relative humidity: 5 to 95%
PHYSICAL
- Safety standards:
- UL60950-1, EN60950-1, IEC60950-1, EN50155
- Case material
- 24 and 48 Vin(nom): Metal
- 100 Vin(nom): aluminum base-plate with plastic case
- Base material
- 24 and 48 Vin(nom): FR4 PCB
- Potting material: silicone (UL94 V-0)
- Weight: 97 g. (3.42 oz.)
- MTBF: 3.362 x 105, MIL-HDBK-217F, full load
EMC CHARACTERISTICS
- EMI
- EN55011: Class A
- EN55022: Class B
- ESD, EN61000-4-2, Perd Criteria A
- Radiated immunity
- EN6100-4-3: 20 V/m (Perf. Criteria A)
- Fast transient
- EN6100-4-4: ±2kV (Perf. Criteria A)
- Surge: EN6100-4-5
- EN55024: ±2kV
- EN50155: ±2kV
- Conducted immunity
- EN6100-4-6: 10Vr.m.s (Perf. Criteria A)
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