B0303XT-1WR3

DC/DC Converter B03_XT-1WR3 Series FEATURES 1W isolated DC-DC converter Fixed input voltage, unregulated single output  Continuous short-circuit protection  No-load input current as low as 12mA  Operating ambient temperature range: -40℃ to +105℃  High efficiency up to 84%  Compact SMD package  I/O isolation test voltage 1.5k VDC Patent Protection RoHS  Industry standard pin-out B03_XT-1WR3 series are designed for use in distributed power supply systems and especially suitable in applications such as pure digital circuits, low frequency analog circuits, relay-driven circuits and data switching circuits. Selection Guide Output Input Voltage (VDC) Certification Part No. Capacitive Load(µF) Voltage (VDC) Max./Min. Efficiency (%) Min./Typ. 3.3 303/30 73/77 2400 5 200/20 78/82 2400 9 111/11 80/84 1000 12 83/8 80/84 560 B0315XT-1WR3 15 67/7 80/84 560 B0324XT-1WR3 24 42/4 80/84 220 (Range) B0303XT-1WR3 B0305XT-1WR3 -- Full Load Current(mA) Nominal B0309XT-1WR3 3.3 (2.97-3.63) B0312XT-1WR3 Max. Input Specifications Item Input Current (full load / no-load) Operating Conditions 3.3VDC input Min. Typ. Max. 3.3VDC output -- 394/12 416/-- 5VDC output -- 370/12 389/-- 9VDC/12VDC/15VDC/24VDC output -- 361/12 379/-- -- 30 -- -- 5 Reflected Ripple Current* Surge Voltage (1sec. max.) -0.7 Input Filter Unit mA VDC Capacitance filter Hot Plug Unavailable Note: *Reflected ripple current testing method please refer to DC-DC Converter Application Note for specific operation. Output Specifications Item Operating Conditions Min. Voltage Accuracy Linear Regulation Load Regulation Typ. Max. Unit See output regulation curve (Fig. 1) Input voltage change: ±1% 10%-100% load 3.3VDC output -- -- ±1.5 5VDC/9VDC/12VDC/15VDC/2 4VDC output -- -- ±1.2 3.3VDC output -- 15 20 5VDC output -- 10 15 9VDC/12VDC/15VDC output -- 8 15 24VDC output -- 6 15 -- % Ripple & Noise* 20MHz bandwidth -- 50 100 mVp-p Temperature Coefficient Full load -- ±0.02 -- %/℃ Short-circuit Protection Continuous, self-recovery Note:* The “parallel cable” method is used for ripple and noise test, please refer to DC-DC Converter Application Notes for specific information. 2021.10.29-A/0 Page 1 of 5 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter B03_XT-1WR3 Series General Specifications Item Insulation Resistance Operating Conditions Input-output electric strength test for 1 minute with a leakage current of 1mA max. Input-output resistance at 500VDC Isolation Capacitance Input-output capacitance at 100kHz/0.1V Operating Temperature Derating when operating temperature≥85℃, (see Fig. 2) Isolation Min. Typ. Max. Unit 1500 -- -- VDC 1000 -- -- MΩ -- 20 -- pF -40 -- 105 -55 -- 125 25 -- Storage Temperature ℃ Case Temperature Rise Ta=25℃ -- Storage Humidity Non-condensing %RH 5 -95 Peak temp. Tc≤245℃, maximum duration time≤60s over 217℃ Reflow Soldering Temperature* Vibration 10-150Hz, 5G, 0.75mm. along X, Y and Z Switching Frequency Full load, nominal input voltage MTBF MIL-HDBK-217F@25℃ Moisture Sensitivity Level (MSL) IPC/JEDEC J-STD-020D.1 -- 220 -- kHz 3500 -- -- k hours Level 1 Note: * See also IPC/JEDEC J-STD-020D.1. Mechanical Specifications Case Material Dimensions Black plastic; flame-retardant and heat-resistant (UL94V-0) 13.20 x 11.40 x 7.25 mm Weight 1.4g(Typ.) Cooling Method Free air convection Electromagnetic Compatibility (EMC) Emissions Immunity CE CISPR32/EN55032 CLASS B (see Fig. 4 for recommended circuit) RE CISPR32/EN55032 CLASS B (see Fig. 4 for recommended circuit) ESD IEC/EN61000-4-2 Air ±8kV, Contact ±6kV perf. Criteria B Typical Characteristic Curves 3.3VDC output 5VDC/9VDC/12VDC/15VDC/24VDC output Fig. 1 Output Power Percent(%) Temperature Derating Curve 120 100 80 60 40 Safe Operating Area 20 0 -40 0 40 85 105 120 Ambient Temp.(℃) Fig. 2 2021.10.29-A/0 Page 2 of 5 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter B03_XT-1WR3 Series Design Reference 1. Typical application Input and/or output ripple can be further reduced, by connecting a filter capacitor from the input and/or output terminals to ground as shown in Fig.3. Choosing suitable filter capacitor values is very important for a smooth operation of the modules, particularly to avoid start-up problems caused by capacitor values that are too high. For recommended input and output capacitor values refer to Table 1. Table 1: Recommended input and output capacitor values Vin Cin Vo Cout +Vo Vin C in DC DC GND C out 0V Fig.3 3.3VDC 4.7µF/16V 3.3VDC -- -- 5VDC 10µF/16V 10µF/16V -- -- 9VDC 4.7µF/16V -- -- 12VDC 2.2µF/25V -- -- 15VDC 1µF/25V -- -- 24VDC 0.47µF/50V 2. EMC compliance circuit Emissions C1, C2 4.7µF /16V C3 Refer to the Cout in Fig. 3 CY 270pF/2kV LDM 6.8µH Fig. 4 3. For additional information, please refer to DC-DC converter application notes on www.mornsun-power.com 2021.10.29-A/0 Page 3 of 5 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter B03_XT-1WR3 Series Dimensions and Recommended Layout Tape and Reel Info 2021.10.29-A/0 Page 4 of 5 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation DC/DC Converter B03_XT-1WR3 Series Notes: 1. 2. 3. 4. 5. 6. 7. 8. For additional information on Product Packaging please refer to www.mornsun-power.com. Tube Packaging bag number: 58210024, Roll Packaging bag number: 58200054; If the product is not operated within the required load range, the product performance cannot be guaranteed to comply with all parameters in the datasheet; The maximum capacitive load offered were tested at input voltage range and full load; Unless otherwise specified, parameters in this datasheet were measured under the conditions of Ta=25℃, humidity