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2B2424XD Datasheet(PDF) 4 Page - Microdc power Technology Co., Ltd |
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2B2424XD Datasheet(HTML) 4 Page - Microdc power Technology Co., Ltd |
4 / 5 page 2B 2B-X -X(S)D (S)D Series Series http://www.microdc.cn Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646 Page 4 of 5 PACKAGE PACKAGE SPECIFICATIONS SPECIFICATIONS MECHANICAL MECHANICAL DIMENSIONS DIMENSIONS SIP SIP Package Package DIP DIP Package Package All All dimensions dimensions in in inches inches ± ±0.01(mm 0.01(mm± ±0.25mm). 0.25mm). All All pins pins on on a a 0.1(2.54) 0.1(2.54) pitch pitch and and within within ± ±0.01(0.25)of 0.01(0.25)of true true position. position. Weight: Weight: 2.8g(SIP) 2.8g(SIP) 4.2g(DIP) 4.2g(DIP) FOOTPRINT FOOTPRINT SIP SIP7 7 FOOTPRINT FOOTPRINT DIP14 DIP14 PIN PIN F Function unction PIN PIN F Function unction 1 1 +Vin 1 1 GND 2 2 -Vin 7 7 NC 4 4 -Vout 8 8 0V 6 6 +Vout 9 9 +V0 11 11 No Pin NC No connection 14 14 Vin Specifcations can be changed any time without notice. No parallel connection or plug and play. Note: 1. The load shouldn't be less than 10%, otherwise ripple will increase dramatically. 2. Operation under 10% load will not damage the converter; However, they may not meet all specification listed. 3. All specifications measured at Ta=25°C, humidity<75%, nominal input voltage and rated output load unless otherwise specified. 4. In this datasheet, all the test methods of indications are based on corporate standards. Technical Technical notes notes ISOLATION VOLTAGE "Hi Pot Test","Flash Tested","Withstand Voltage","Dielectric Withstand Voltage"&”Isolation Test Voltage" are all terms that relate to the same thing, a test voltage. Applied for a specified time, across a component designed to provide electrical isolation, to verify the integrity of that isolation. Professional Power Module B series of DC/DC converters are all 100% production tested at their stated isolation voltage. This is 1KVDC for 1 second. A question commonly asked is,"What is the continuous voltage that can be applied across the part in normal operation?" The B_X(S)D series has been recognized by Underwriters Laboratory for functional insulation. Both input and output should normally be maintained within SELV limits i.e. less than 42.4V peak, or 60VDC.The isolation test voltage represents a measure of immunity to transient voltages and the part should never be used as an element of a safety isolation system. The part could be expected to function correctly with several hundred volts offset applied continuously across the isolation barrier, but then the circuitry on both sides of the barrier must be regarded as operating at an unsafe voltage and further isolation/insulation systems must form a barrier between these circuits and any user-acssible circuitry according to safety standard requirements. REPEATED HIGH-VOLTAGE ISOLATION TESTING It is well known that repeated high-voltage isolation testing of a barrier component can actually degrade isolation capability, to a lesser or greater degree depending on materials. Construction and environment. The B series has toroidal isolation transformers, with no additional insulation between primary and secondary windings of enameled wire. While parts can be expected to withstand several times the stated test voltage, the isolation capability does depend on the wire insulation. Any material, including this enamel (typically polyurethane) is susceptible to eventual chemical degradation when subject to very high applied voltages thus implying that the number of tests should be strictly limited. We therefore strongly advise against repeated high voltage isolation testing. but if it is absolutely required, that the voltage be reduced by 20% from specified test voltage. This consideration equally applies to agency recognized parts for better than functional isolation where the wire enamel insulation is always supplemented by a further insulation system of physical spacing or barriers. RECOMMENDED RECOMMENDED FOOTPRINT FOOTPRINT DETAILS DETAILS 4 4 Pin Pin SIP SIP Package Package 14 14 Pin Pin DIP DIP Package Package Unless otherwise stated all dimensions in inches (mm) 0.5mm |
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