Model Input Voltage (DC V) MSD15-2412 MSD15-2415 MSD15-4812 MSD15-4815 24 24 48 48 Input Voltage range (DC V) 18～36 36～75 Output voltage (DC V) ±12 ±15 ±12 ±15 Output current (mA) ± ± ± ± 600 500 600 500 Input Specifications Input current (no load) 24 Vin models: 48 Vin models: Input current (full load) 24 Vin; 3.3 Vout models: 24 Vin; other output models: 48 Vin; 3.3 Vout models: 48 Vin; other output models: Start-up voltage /under voltage shut down 24 Vin models: 48 Vin models: Surge voltage(100 msec. max.) 24 Vin models: 48 Vin models: 50 mA typ.. 30 mA typ. 570 mA typ. 730 mA typ. 280 mA typ. 360 mA typ. 17 VDC /16.5 VDC 34.0 VDC /32.5 VDC 50 V max.. 100 V max. Output Specifications Voltage set accuracy Regulation ±1% – Input variation Vin min. to Vin max 0.5% max. – Load variation 10 – 100 % dual output models unbalanced: 2.0 % max. dual output models unbalanced: 5.0 % max. 100 mVpk-pk max. Ripple and noise (20 MHz Bandwidth) Temperature coefficient Output current limitation Short circuit protection Start-up time Max. capacitive load (with external output capacitor, see Note 1) ± 0.02 % /K >105% of Iout max., foldback indefinite (automatic recovery) 30ms max. 1200μF General Specifications Temperature ranges – – – – Operating Derating Case temperature Storage –25 °C ... +71°C 2.5%/K above 50°C +100 °C max. –40 °C ... +110 °C Humidity (non condensing) 85 % rel H max. Reliability, calculated MTBF (MIL-HDBK-217F ground benign) > 190’000h @ +25°C Isolation voltage (60sec – Input/Output 1’500 VDC Isolation capacity – Input/Output 235 pF typ. – Input/Output (500 VDC)>100 M Ohm Isolation resistance 330 kHz typ. (Pulse width modulation PWM) Switching frequency (fixed) Remote On/Off – On: open circuit on pin RC short circuit between pin RC and pin –Vin – Off: Physical Specifications Case material Baseplate Potting material Weight Soldering temperature plastic PBT (UL94V-0 rated) non conductive FR4 silicon (UL94V-0 rated) 12 g (0.41 oz) max. 265 °C / 10sec. Note 1 Recommended circuit to reduce conducted noise and output ripple & noise: C1: 33μF low ESR electrolytic capacitor For dual output models use capacitors for each output C2: 10μF low ESR electrolytic capacitor C3: 1μ film capacitor Outline Dimensions mm Pin-Out 1 +Vin (Vcc) 2 –Vin (GND) 3 +Vout 4 Common 5 –Vout 6 Remote On/Off