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Home > Polytron Power Supplies > Polytron QB150 Series, DC-DC Converters, 150 Watt, Quarter Brick, 4:1 Ultra Wide Input Range, 2.28" X 1.45" X 0.50"
Polytron QB150 Series, DC-DC Converters, 150 Watt, Quarter 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: QB150
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Quarter-brick for railway applications
Our 150-watt quarter-brick QB150 DC-DC converter features low standby power consumption, a remote control, and high efficiency of up to 90%. This model, ideal for railway applications, is also compliant with RoHS II and Reach guidelines and meets 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 |
| QB150-24S33 |
8.5 - 36 |
3.3 |
30 |
25 |
88 |
91000μF |
| QB150-24S5 |
5 |
24 |
25 |
89 |
48000μF |
| QB150-24S12 |
12 |
10 |
25 |
88 |
8300μF |
| QB150-24S15 |
15 |
8 |
25 |
89 |
5300μF |
| QB150-24S24 |
24 |
5 |
25 |
88 |
2100μF |
| QB150-24S30 |
30 |
4 |
25 |
89 |
1300μF |
| QB150-24S48 |
48 |
2.5 |
25 |
88 |
520μF |
| QB150-48S33 |
16.5 -75 |
3.3 |
30 |
15 |
88 |
91000μF |
| QB150-48S5 |
5 |
24 |
15 |
89 |
48000μF |
| QB150-48S12 |
12 |
10 |
15 |
89 |
8300μF |
| QB150-48S15 |
15 |
8 |
15 |
90 |
5300μF |
| QB150-48S24 |
24 |
5 |
15 |
90 |
2100 μF |
| QB150-48S30 |
30 |
4 |
15 |
90 |
1300μF |
| QB150-48S48 |
48 |
2.5 |
15 |
90 |
520μF |
| QB150-110S3P3 |
40 - 160 |
3.3 |
30 |
8 |
88 |
91000μF |
| QB150-110S05 |
5 |
24 |
8 |
89 |
48000μF |
| QB150-110S12 |
12 |
11 |
8 |
88 |
9170μF |
| QB150-110S15 |
15 |
8.6 |
8 |
89 |
5730μF |
| QB150-110S24 |
24 |
5.5 |
8 |
89 |
2290 μF |
| QB150-110S30 |
30 |
4.4 |
8 |
89 |
1470μF |
| QB150-110S48 |
48 |
2.7 |
8 |
89 |
560μF |
Input and Output Specifications:
INPUT
- Voltage Range
- 24 Vdc nominal input: 8.5 to 36 Vdc
- 48 Vdc nominal input: 16.5 to 75 Vdc
- 110 Vdc nominal input: 40 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: 7.3 to 8.1 Vdc
- 48 Vdc nominal input: 15.5 to 16.3 Vdc
- 110 Vdc nominal input: 33 to 36 Vdc
- Start up time
- Constant resistive load, power up: 75 to 100 mS
- Constant resistive load, remote on/off: 75 to 100 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
- Negative logic (Standard)
- DC-DC ON: Short or 0 to 1.2 Vdc
- DC-DC OFF: Open or 3 to 12 Vdc
- Positive logic (Option)
- DC-DC ON: Open or 3 to 12 Vdc
- DC-DC OFF: Short or 0 to 1.2 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, 3.3 and 5 Vout: ±0.2%
- No load to full load, others: ±0.1%
- Voltage and adjustability: -20 to 10%
- Remote sense: 10%
- Ripple and noise (measured by 20 MHz bandwidth)
- With a 22µF/25V X7R MLCC
- 3.3 and 5 Vout: 75 mVp-p
- 12 and 15 Vout: 100 mVp-p
- With a 4.7µF/50V X7R MLCC
- 24 and 30 Vout: 200 mVp-p
- With a 2.2µF/100V X7R MLCC
- Temperature coefficient: ±0.02%/°C
- Transient response recovery time
- 25% load step change: 250µS
- Over voltage protection: 115 to 130%
- Over load protection: 110 to 140%
- Short circuit protection: continuous automatic recovery
More Specifications:
GENERAL
- Efficiency: 88 to 90%
- Isolation voltage
- Input to output: 2250 Vdc
- Input to baseplate: 2250 Vdc
- Isolation resistance: 500 Vdc
- Isolation capacitance: 1500 pF
- Switching frequency: 270 to 330 kHz
ENVIRONMENTAL
- Operating case temperature: -40 to 110°C
- Over temperature protection: 110°C
- Storage temperature range: -55 to 125°C
- Thermal impedance
- Without heat sink: 9°C/W
- Mount on 2U iron baseplate: 2.8°C/W
- With 0.24" height heat sink: 7.1°C/W
- With 0.5" height heat sink: 5.5°C/W
- Thermal shock: EN61373, MIL-STD-810F
- Vibration: EN61373, MIL-STD-810F
- Relative humidity: 5 to 95%
PHYSICAL
- Safety standards: IEC60950-1, UL60950-1, EN60950-1, EN50155
- Case material: Aluminum baseplate with plastic case
- Potting material: Silicone (UL94-V0)
- Dimensions: 2.28 x 1.45 x 0.50 in. (57.9 x 36.8 x 12.7 mm)
- Weight: 64 g. (2.26 oz.)
- MTBF
- 9.742 x 105 hours, BELLCORE TR-NWT-000332 Case 1: 50% Stress, Ta = 40°C
- 8.573 x 104 hours, MIL-HDBK-217 Ta=25°C, full load (G/B, controlled environment)
EMC CHARACTERISTICS
- EMI
- EN55011, EN55022: Class B
- ESD: EN61000-4-2, Perf. Criteria A
- Radiated immunity
- EN61000-4-3: 20 V/m, Perf. Criteria A
- Fast transient
- EN61000-4-4: ±2kV, Perf. Criteria A
- Surge: EN61000-4-5
- EN55024: ±2kV
- EN50155: ±2kV
- Conducted immunity
- EN61000-4-6: 10 Vr.m.s, Perf. Criteria
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