Daburn Electronics & Cable DC-DC Converter, 40 Watt 4:1 Ultra Wide Input Range, 1" X 2" X 0.40" LWB40

Good for railway applications, our 40 watt wide input range LWB40 series DC-DC converter features a low profile package, an operating temperature from -40 to 85°C and a minimum input/output isolation of 1600 Vdc. This series meets EN50155, EN50121-3 and EN61373 railway requirements and UL60950-1, EN60950-1, IEC60950-1 and EN50155 safety standards. INPUT Operating 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: 8 Vdc 48 Vdc nominal input: 16 Vdc 110 Vdc nominal input: 40 Vdc Start up time Constant resistive load, power up: 60 mS Constant resistive load, remote on/off: 60 mS Input surge voltage 1 sec. max, 24 Vdc nominal input: 50 Vdc 1 sec. max, 48 Vdc nominal input: 100 Vdc 1 sec. max, 110 Vdc nominal input: 170 Vdc Input filter: Pi type Remote ON/OFF Positive logic DC-DC ON: Open or 3 to 12 Vdc DC-DC OFF: Short or 0 to 1.2 Vdc Negative logic DC-DC ON: Short or 0 to 1.2 Vdc DC-DC OFF: Open or 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: ±0.2% Load regulation No load to full load, single: ±0.5% No load to full load, dual: ±1% Cross regulation Asymmetrical load 25/100% FL, dual: ±5% Voltage and adjustability Single output, 3.3, 5 and 12 Vout: ±10% Single output, 15 and 24 Vout: -10 to 20% Ripple and noise (measured by 20 MHz) 3.3 and 5 Vout: 75 to 100 mVp-p 12 and 15 Vout: 100 to 125 mVp-p 24 Vout: 150 to 200 mVp-p Temperature coefficient: ±0.02%/°C Transient Response recovery time 25% load step change: 250µS Over voltage protection Zener diode clamp, 3.3 Vout: 3.9% Zener diode clamp, 5 Vout: 6.2% Zener diode clamp, 12 Vout: 15% Zener diode clamp, 15 Vout: 20% Zener diode clamp, 25 Vout: 30% Over load protection: 150% Short circuit protection: continuous, automatics recovery GENERAL Efficiency: 88 to 92% Isolation voltage Input to output: 1600 Vdc Input to case: 1600 Vdc Isolation resistance: 500 Vdc Isolation capacitance: 1500 pF Switching frequency: 225 to 275 kHz ENVIRONMENTAL Operating ambient temperature: -40 to 85°C Maximum case temperature: 105°C Over temperature range: 115°C Storage temperature range: -55 to 125°C Thermal impedance (vertical direction by natural convection) Without heat sink: 10.8°C/W With heat sink: 10.3°C/W Thermal shock: MIL-STD-810F Shock: EN61373, MIL-STD-810F Vibration: EN61373, MIL-STD-810F Relative humidity: 5 to 95% PHYSICAL Design meets safety standards: UL60950-1, EN60950-1, IEC60950-1, EN50155 Case material: copper Base material: FR4 PCB Potting material: Silicone (UL94 V-0) Weight: 32g (1.13 oz) MTBF: 9.073 x 105 hours, MIL-HDBK-217F, full load EMC CHARACTERISTICS EMI: EN55011, EN55022 Class A ESD: EN6100-4-2, Perf. Criteria A Air: ±8 kV Contact: ±6 kV Radiated immunity EN61000-4-3: 20 V/m, Perf. Criteria A Fast transient EN61000-4-4: ±2kV, Perf. Criteria A Surge EN61000-4-5: ±2kV, Perf. Criteria A Conducted immunity EN61000-4-6: 10 Vr.m.s, Perf. Criteria A