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150 Watt

4:1 Ultra Wide Input Range

Quarter-brick for railway applications

Our 150 watt quarter-brick DC-DC converter features low standby power consumption, a remote control and high efficiency 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.

 

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
      • 48 Vout: 300 mVp-p
  • 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

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
      • Air: ±8kV
      • Contact: ±6kV
    • 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
Input Voltage
Range
(Vdc)		Output Voltage
(Vdc)		Output Current
Full Load (A)		Input Current
No load (mA)		Efficiency
(%)		Model NumberMax. Capacitor
Load µF
8.5 - 36 3.3 30 25 88 QB150-24S33 91000
5 24 25 89 QB150-24S5 48000
12 10 25 88 QB150-24S12 8300
15 8 25 89 QB150-24S15 5300
24 5 25 88 QB150-24S24 2100
30 4 25 89 QB150-24S30 1300
48 2.5 25 88 QB150-24S48 520
16.5 - 75 3.3 30 15 88 QB150-48S33 91000
5 24 15 89 QB150-48S5 48000
12 10 15 89 QB150-48S12 8300
15 8 15 90 QB150-48S15 5300
24 5 15 90 QB150-48S24 2100
30 4 15 90 QB150-48S30 1300
48 2.5 15 90 QB150-48S48 520
40 - 160 3.3 30 8 88 QB150-110S3P3 91000
5 24 8 89 QB150-110S05 48000
12 11 8 88 QB150-110S12 9170
15 8.6 8 89 QB150-110S15 5730
24 5.5 8 89 QB150-110S24 2290
30 4.4 8 89 QB150-110S30 1470
48 2.7 8 89 QB150-110S48 560