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