Catalog excerpts
50W/75W/100W, wide input voltage, isolated ®ulated single output DC-DC converter Patent Protection RoHS FEATURES • Wide range of input voltage : 66-160V • Efficiency up to 92% • Low no-load power • Isolation voltage 3000VDC • Operating temperature range:-40°C~+100°C • Input under-voltage protection, output over-voltage, over-current, short circuit, over-temperature protection • International standard: 1/4 brick • Meets requirements of UL60950 and railway standard EN50155 JRF1D_QB Series is a high performance product designed for the field of railway applications. Output power contains 50W/75W/I00W, no min. load requirement, wide input voltage 66-i60VDC, which allows the base plate temperature up to 100 C. Further product feathers include input under- voltage protection, output over-voltage protection, short circuit protection, over temperature protection, remote control and compensated, output voltage regulation functions. Meets the EN50T55 railway standard and JL/EN60950safety standards. Widely used in the railway system and associated equipment. Selection Guide Input Specifications Output Specifications MORNSUN GUANGZHOU SCIENCC & TECHNOLOGY CO.,LTD. MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation
Open the catalog to page 1DC/DC Converter URF1D QB Series MORNSUN® Transient Recovery Time MORNSUN GUANGZHOU SCIENCC & TECHNOLOGY CO.,LTD. MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation
Open the catalog to page 2Efficiency Curves Efficiency Vs input Voltage (Full Load) Efficiency Vs Output Load(Vin=110V) Thermal Curves Ambient temperature(°C) No Heatsink Natural Conve MORNSUN A MORNSUN GUANGZHOU SCIENCC & TECHNOLOGY CO.,LTD. MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation
Open the catalog to page 3DC/DC Converter URF1D_QB Series URF1D24QB-75W Thermal Curves (Vin=110V) 70 No Heatsink Natural Convection Heatsink Natural Convection Output power(W) Output power(W) Ambient temperature(℃) 50 No Heatsink Natural Convection Heatsink Natural Convection Output power(W) Output power(W) Ambient temperature(℃) Ambient temperature(℃) Ambient temperature(℃) Sense of application and precautions 1. When Remote Sense is not used +Vo sens e+ Trim sens e0V The le ad as s ho rt as po ss ible Short at pin root Notes: 1) When remote sense is not used, make sure + Vo and Sense + are shorted, and that 0V and...
Open the catalog to page 4DC/DC Converter URF1D_QB Series Design Reference 1. Ripple & noise All the URF1D_QB-100W series have been tested according to the following recommended test circuit before leaving the factory (see Figure 1). Copper sheet C0 sens e-Vin Connect Oscillograph Probe (20MHz bandwidth) 2. Typical application If don’t use our company’s EMC models, please make sure the input of at least 33uF electrolytic capacitor in parallel to suppress the input terminal may produce surge voltage. If it is required to further reduce input and output ripple, properly increase the input & output of additional...
Open the catalog to page 5DC/DC ConverterURF1D_QB Series5. Thermal design The maximum operating temperature of base- plate TB is 100 °C, as long as the user's thermal system keeps TB <100 °C, the converter can deliver its full rated power. A power derating curve can be calculated for any heatsink that is attached to the base-plate of the converter. It is only necessary to determine the thermal resistance, Rth(B-A), of the chosen heatsink between the base-plate and the ambient air for a given airflow rate. This information is usually available from the heatsink vendor. The following formula can the be used...
Open the catalog to page 6DC/DC Converter URF1D QB Series MORNSUN®Dimensions and Recommended Layout (without heatsink)THIRD ANGLE PROJECTION •03.50 [00.138] Aluminum Baseplate Front view Function Function +Vin Trim Note: Mounting hole screwing torque: Max 0.4 N m Dimensions and Recommended Layout(with heatsink) 6-01.50 [0O.OS9] THIRD ANGLE PROJECTION Front View Note:Grid 2.54*2.54mm Bottom View Pin-Out Function Function +Vin Sense Note: MORNSUN GUANGZHOU SCI€NC€ & T6CHNOLOGY CO.,LTD. Mounting hole screwing torque: Max 0.4 N m 2014.12.09-A/1 Page 7 of 8MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the...
Open the catalog to page 7DC/DC Converter URF1D_QB Series Note 1. Packing Information please refer to 'Product Packing Information'. Packing bag number:58010113(without heatsink), 58010112(with heatsink); 2. Recommended used in more than 5% load, if the load is lower than 5%, then the ripple index of the product may exceed the specification, but does not affect the reliability of the product; 3. The max capacitive load should be tested within the input voltage range and under full load conditions; 4. If the customer tests EMC, suggest to take our EMC module FC-CX3D. If the customer needs to meet the performance...
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