DC/DC Railway Converter TEP 75WI Series, 75 Watt Rugged, compact metal case Screw terminal adaptor available for easy connection EN 50155 approval for railway applications Ultra wide 4:1 input voltage range Full load operation up to +60C with convection cooling Undervoltage lockout Reverse input voltage protection UL 62368-1 IEC 62368-1 Input protection filter The TEP-75WI Series is a family of isolated high performance DC/DC converter 3-year product warranty modules with ultra-wide 4:1 input voltage ranges which come in a rugged, sealed metal case. These converters are suitable for a wide range of applica- tions. For easy connection there is also an unique adaptor available with screw terminals. A very high efficiency allows an operating temperature up to +60C with natural convection cooling without power derating. Further features in- clude output voltage trimming, Remote On/Off and under voltage lockout. The very wide input voltage range and reverse input voltage protection make these converters also an interesting solution for battery operated systems. Models Order Code Input Voltage Output Voltage Output Current Efficiency Range nom. max. typ. TEP 75-2411WI 5 VDC 15 000 mA 88 % TEP 75-2412WI 12 VDC 6 300 mA 88 % TEP 75-2413WI 15 VDC 5 000 mA 88 % 9 - 36 VDC (24 VDC nom.) TEP 75-2415WI 24 VDC 3 200 mA 87 % 28 VDC 2 700 mA 87 % TEP 75-2416WI TEP 75-2418WI 48 VDC 1 600 mA 87 % TEP 75-4811WI 5 VDC 15 000 mA 90 % TEP 75-4812WI 12 VDC 6 300 mA 90 % TEP 75-4813WI 15 VDC 5 000 mA 89 % 18 - 75 VDC (48 VDC nom.) TEP 75-4815WI 24 VDC 3 200 mA 88 % TEP 75-4816WI 28 VDC 2 700 mA 88 % 48 VDC 1 600 mA 87 % TEP 75-4818WI TEP 75-7211WI 5 VDC 15 000 mA 91 % TEP 75-7212WI 12 VDC 6 300 mA 91 % TEP 75-7213WI 15 VDC 5 000 mA 91 % 43 - 160 VDC (110 VDC nom.) TEP 75-7215WI 24 VDC 3 200 mA 90 % TEP 75-7216WI 28 VDC 2 700 mA 90 % TEP 75-7218WI 48 VDC 1 600 mA 90 % Page 1 / 5 www.tracopower.com November 18, 2021TEP 75WI Series, 75 Watt Options Suffix -CM - Chassis mount models without filter: www.tracopower.com/products/tep75wicm.pdf - Chassis mount models with filter to meet EN 55032 class A: www.tracopower.com/products/tep75wicmf.pdf Suffix -CMF TEP-HS1 - Optional Heat Sink: www.tracopower.com/products/tep-hs1.pdf - Optional model with 3.3 VDC / 20 000 mA Output and 9 - 36 VDC Input on demand - Optional model with 3.3 VDC / 20 000 mA Output and 18 - 75 VDC Input (backorder with MOQ - Optional model with 3.3 VDC / 20 000 mA Output and 43 - 160 VDC Input non stocking item) - Inverse Remote On/Off function (passive = off) Input Specifications Input Current - At no load 24 Vin models: 85 mA typ. 48 Vin models: 60 mA typ. 110 Vin models: 10 mA typ. - At full load 24 Vin models: 3 600 mA max. 48 Vin models: 1 800 mA max. 110 Vin models: 1 350 mA max. Surge Voltage 24 Vin models: 50 VDC max. (1 s max.) 48 Vin models: 100 VDC max. (1 s max.) 110 Vin models: 185 VDC max. (1 s max.) Under Voltage Lockout 24 Vin models: 7.3 VDC min. / 7.7 VDC typ. / 8.1 VDC max. 48 Vin models: 15.5 VDC min. / 16 VDC typ. / 16.3 VDC max. 110 Vin models: 33 VDC min. / 34.5 VDC typ. / 36 VDC max. Recommended Input Fuse 24 Vin models: 15 000 mA (fast acting) 48 Vin models: 8 000 mA (fast acting) 110 Vin models: 3 150 mA (slow blow) (The need of an external fuse has to be assessed in the final application.) Reverse Voltage Protection Parallel diode (24 Vin and 48 Vin models only) (external input fuse required) Input Filter Internal Pi-Type (For 24 Vin models an input capacitor 4.7 F X7R or 68 F Nippon chemi-con KY is recommended for a reliable supply.) Output Specifications Output Voltage Adjustment 20% to +10% (By external trim resistor) See application note: www.tracopower.com/overview/tep75wi Output power must not exceed rated power Voltage Set Accuracy 1% max. Regulation - Input Variation (Vmin - Vmax) 0.1% max. - Load Variation (0 - 100%) 0.1% max. Ripple and Noise 3.3 Vout models: 100 mVp-p max. (w/ 4.7 F) (20 MHz Bandwidth) 5 Vout models: 100 mVp-p max. (w/ 4.7 F) 12 Vout models: 125 mVp-p max. (w/ 4.7 F) 15 Vout models: 125 mVp-p max. (w/ 4.7 F) 24 Vout models: 250 mVp-p max. (w/ 4.7 F) 28 Vout models: 250 mVp-p max. (w/ 4.7 F) 48 Vout models: 350 mVp-p max. (w/ 2.2 F) Capacitive Load 3.3 Vout models: 60 600 F max. 5 Vout models: 30 000 F max. 12 Vout models: 5 250 F max. 15 Vout models: 3 330 F max. 24 Vout models: 1 330 F max. 28 Vout models: 960 F max. 48 Vout models: 330 F max. Minimum Load Not required All specifications valid at nominal voltage, resistive full load and +25C after warm-up time, unless otherwise stated. Page 2 / 5 www.tracopower.com November 18, 2021