DC/DC Converter TEQ 300WIR Series, 300 Watt • High power block with excellent thermal convection • Operating temperature -40°C to +80° • Increased shock & vibration resistance • Ultra wide 4:1 input voltage range • EN 50155 approval for railway applications • Excellent efficiency up to 92% • Constant current output characteristic for battery load applications Power sharing (up to 3 pcs in parallel) Input filter meet EN 55022, class A I/O isolation 3000 VDC Infinite capacitive load Under voltage lock-out circuit Soft start Input protection filter The TEQ-300WIR Series is a family of isolated high performance dc-dc converter 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 applications, but the product is designed particularly also for industrial applications where often no PCB mounting is possible but the module has to be mounted on a chassis. A very high efficiency and the overall heatsink construction allows an operating temperature up to +55°C with natural convection cooling without power derating and up to +80°C with power derating. Further features include output voltage trimming, Remote On/Off and under voltage lockout. The ultra wide input voltage range and reverse input voltage protection make these converters also an interesting solution for battery operated systems. * below 24 Vin a derating of 3.3 %/V has to be applied (see page 3)

TEQ 300WIR Series, 300 Watt General Specifications Isolation voltage (60 sec) – Input/Case – Input/Output Isolation capacitance (input/output) Isolation resistance (input/output) Reliability, calculated MTBF (MIL-HDBK-217F at +25°C, ground benign) Altitude during operation Switching frequency Safety standards & approvals 48 Vin models: 225 kHz typ. (PWM) 110 Vin models: 200 kHz typ. (PWM) – CB test certificate IEC/EN 62368-1, IEC/EN 60950-1 – UL online certification E188913, QQGQ2 UL 60950-1 – CSA certificate of compliance UL 508 – Railway immunity EN 50155 – Flamability identified acc. EN 45545-2...

TEQ 300WIR Series, 300 WattOutline Dimensions 6.00(152,4) 5.61(142,4) Terminal connection * Sense line to be connected to the output either at the module or at the load under regard of polarity. - Wire size shall be selected to withstand the peak current (Iout max. + Current limitation) FRONT VIEW Dimensions in [mm], () = Inch Tolerances: x.xx ±0.5 (±0.02) Current Line Splitter each 48 Vin module has 2 bypacked splitters included The current rating of the terminal block is 15 A/pole. It's recommended to use 2 poles in parallel if the peak output current can exceed 15 A. Table for Input voltage...