Daburn Electronics & Cable DC-DC Converter, 8 Watt Single and Dual Output for Railway TWB8

With an industry standard 24 PIN DIP package, our 8 watt single and dual output DC-DC converter for railway applications features an optional SMD package, output currents up to 2.4A and 88% efficiency. This model also meets railway safety standards including UL60950-1, EN60950-1, IEC60950-1 and EN50155. INPUT Voltage Range 24 Vdc nominal input: 9 - 36 Vdc 48 Vdc nominal input: 18 - 75 Vdc 110 Vdc nominal input: 43 - 160 Vdc Input filter: Pi Filter Input Surge Voltage 24 Vdc input: 50 Vdc 100 ms, max. 48 Vdc input: 100 Vdc 100 ms, max. 110 Vdc input: 170 Vdc 100 ms, max. Input Reflected Ripple Current: 20 mAp-p Start up Time, Normal input and constant resistive load, Power up: 450 ms Startup Voltage 24 Vdc input: 9 Vdc, max. 48 Vdc input: 18 Vdc, max. 110 Vdc input: 43 Vdc, max. Shutdown Voltage 24 Vdc input: 8 Vdc 48 Vdc input: 16 Vdc 110 Vdc input: 42 Vdc Remote ON/OFF (Note 5) DC-DC ON: Open or 3V < Vr < 12V DC-DC OFF: Short or 0V < Vr < 1.2V Input Current of Remote Control Pin, Nominal input: -0.5 mA - 0.5 mA Remote off state input current, Nominal input: 2.5 mA OUTPUT Output Power: 8 Watts max. Voltage Accuracy: ±1% Minimum Load: 0% Line Regulation LL to HL at Full Load: ±0.2% No Load to Full Load Single (DIP): ±0.5% Single (SMD): ±1.0% Dual (SMD, DIP): ±1.0% Load Regulation 10% Load to 90% Load Single (DIP): ±0.3% Single (SMD): ±0.8% Dual (SMD, DIP): ±0.8% Cross Regulation Asymmetrical Load 25%/100% FL: ±5% Ripple and Noise (20 MHz band width): 50 - 75 mVp-p Temperature Coefficient: ±0.2%/°C, max. Transient Response recovery time, 25% load step change: 250μS Over voltage protection 3.3 Vdc output: 3.9 Vdc 5 Vdc output: 6.2 Vdc 12 Vdc output: 15 Vdc 15 Vdc output: 18 Vdc Overload Protection, percent of FL at nominal input: 150% Short Circuit Protection: Continuous, automatic recovery GENERAL Efficiency: 82 - 87% Isolation Voltage Input to Output: 1600 Vdc, min. 1 minute Input (Output) to Case, DIP: 1600 Vdc, min. 1 minute SMD: 1000 Vdc, min. 1 minute Isolation Resistance 500 Vdc: 109 ohms, min. Isolation Capacitance: 1500 pF, max. Switching Frequency: 300 kHz ±10% Approvals and Standard: IEC60950-1, UL60950-1, EN60950-1, EN50155 Case Material: Nickel Coated Copper Base Material: Non-conductive black plastic Potting Material: Epoxy (UL94-V0) Dimensions: 1.25 x 0.80 x 0.40 inches (31.8 x 20.3 x 10.2 mm) Weight: 18 g (0.62 oz.) MTBF (Note 1) BELLCORE TR-NWT-000332: 2.350 x 106 hrs MIL-HDBK 217F: 1.078 x 106 hrs ENVIRONMENTAL Operating Ambient Temperature Vo:5V, 12V, 15V: -40 to 78°C without derating ±12V, ±15V: 78 to 105°C with derating -40 to 70°C without derating Vo:3.3V, ±5V 70 to 105°C with derating Maximum Case Temperature: 105°C Storage Temperature Range: -55 to 125°C Thermal Impedance (Note 8), Natural Convection: 20°C/Watt Thermal Shock: EN61373, MIL-STD-810F Vibration: EN61373, MIL-STD-810F Relative Humidity: 5 - 95% RH EMC CHARACTERISTICS EMI: EN55022, EN55011, Class A, 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, ±2KV, Perf. Criteria A Conducted Immunity: EN61000-4-6, 10 Vrms, Perf. Criteria A