WRA-YT-2W&WRB-YT-2W Series 2W, WIDE INPUT, ISOLATED & REGULATED DUAL/SINGLE OUTPUT DC/DC CONVERTER SELECTION GUIDE Order code Input voltage range Output voltage Output current max. Efficiency typ. WRB0503YT-500 4.5 – 9.0 VDC 3.3 VDC 500 mA 70 % WRB0505YT-2W 4.5 – 9.0 VDC 5 VDC 400 mA 73 % WRB0512YT-2W 4.5 – 9.0 VDC 12VDC 165 mA 75 % WRB0515YT-2W 4.5 – 9.0 VDC 15 VDC 135 mA 73 % WRA0505YT-2W 4.5 – 9.0 VDC ± 5 VDC ± 200 mA 64 % WRA0512YT-2W 4.5 – 9.0 VDC ± 12 VDC ± 85 mA 69 % WRA0515YT-2W 4.5 – 9.0 VDC ± 15 VDC ± 65 mA 71 % WRB1203YT-500 9 – 18 VDC 3.3 VDC 500 mA 73 % WRB1205YT-2W 9 – 18 VDC 5 VDC 400 mA 77 % ◆Lead free Design, RoHS compliant WRB1212YT-2W 9 – 18 VDC 12VDC 165 mA 80 % ◆ 3 Year Product Warranty WRB1215YT-2W 9 – 18 VDC 15 VDC 135 mA 80 % ◆ RoHS Compliance WRA1205YT-2W 9 – 18 VDC ± 5 VDC ± 200 mA 73 % WRA1212YT-2W 9 – 18 VDC ± 12 VDC ± 85 mA 78 % WRA1215YT-2W 9 – 18 VDC ± 15 VDC ± 65 mA 78 % WRB2403YT-500 18 – 36 VDC 3.3 VDC 500 mA 72 % WRB2405YT-2W 18 – 36 VDC 5 VDC 400 mA 77 % WRB2412YT-2W 18 – 36 VDC 12VDC 165 mA 80 % WRB2415YT-2W 18 – 36 VDC 15 VDC 135 mA 81 % WRA2405YT-2W 18 – 36 VDC ± 5 VDC ± 200 mA 74 % WRA2412YT-2W 18 – 36 VDC ± 12 VDC ± 85 mA 78 % WRA2415YT-2W 18 – 36 VDC ± 15 VDC ± 65 mA 80 % WRB4803YT-500 36 – 72 VDC 3.3 VDC 500 mA 71 % WRB4805YT-2W 36 – 72 VDC 5 VDC 400 mA 73 % WRB4812YT-2W 36 – 72 VDC 12VDC 165 mA 79 % WRB4815YT-2W 36 – 72 VDC 15 VDC 135 mA 79 % WRA4805YT-2W 36 – 72 VDC ± 5 VDC ± 200 mA 71 % WRA4812YT-2W 36 – 72 VDC ± 12 VDC ± 85 mA 77 % WRA4815YT-2W 36 – 72 VDC ± 15 VDC ± 65 mA 77 % FEATURES ◆Low Profile SMD-Package ◆Wide 2:1 Input Voltage Range ◆I/O-Isolation 1500 VDC ◆Input Filter meets EN55022, Class A ◆Operating Temperature Range -40°C to +71°C ◆Short-Circuit Protection MODEL SELECTION WR B①12②05③Y④ T⑤-2W(400)⑥ WRB ①Product Series ②Input Voltage ③Output Voltage ④Wide (2:1) Input Range ⑤Package Style ⑥Rated Power(Output current) DESCRIPTION The WRA-YT-2W&WRB-YT-2W series is a family of high performance 2W DC/DC converter modules featuring wide 2:1 input voltage ranges. The 28 models come in a low profile SMD package which requires just 3 cm2 space on the PCB. A high efficiency allows an operating temperature range of –40°C to 71°C without derating. A built-in EMI input filter complies with EN 55022, class A. Typical applications for these converters are battery operated equipment, instrumentation, communication and industrial electronics, everywhere where isolated, tightly regulated voltages are required. MICRODC reserves the copyright http://www.microdc.cn Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 1 of 3 WRA-YT-2W&WRB-YT-2W Series Input Specifications 5 Vin models: 600 mA typ. 12 Vin models: 220 mA typ. 24 Vin models: 110 mA typ. 48 Vin models: 55 mA typ. 5 Vin models: 11 V max. 12 Vin models: 25 V max. 24 Vin models: 50 V max. 48 Vin models: 100 V max. Input current at full load(nominal input) Surge voltage (100 msec. max.) Conducted noise (input) EN 55022 level A, FCC part 15, level A *Supply voltage must be discontinued at the end of short circuit duration. Output Specifications Voltage set accuracy ±2% – Input variation Vin min. to Vin max. Regulation ± 0.5 % max. – Load variation 25 – 100 % ± 0.75 % max. dual output models: ± 2.0% (balanced load) Ripple and noise (20 MHz Bandwidth) 50 mVpk-pk max Temperature coefficient ± 0.02 %/K Short circuit protection indefinite, automatic recovery Minimum load 25% of rated max current (operation at lower load condition is safe but a higher output ripple will be experienced) Capacitive load 3.3 VDC output models: 2’200 µF max. 5 VDC output models: 1’000 µF max. 12 VDC output models: 170 µF max. 15 VDC output models: 110 µF max. ± 5 VDC output models: 470 µF max. ± 12 VDC output models: 100 µF max. ± 15 VDC output models: 47 µF max. *Supply voltage must be discontinued at the end of short circuit duration. General Specifications – Operating – 40 °C ... + 71 °C (no derating) – Storage – 55 °C ... + 125 °C Temperature ranges Humidity (non condensing) 95 % rel. H max. Reliability, calculated MTBF(MIL-HDBK-217 F) > 1.0 Mio h @ 25°C Isolation voltage Input/Output 1’500 VDC Isolation capacity Input/Output 250 pF Isolation resistance Input/Output (500 VDC) > 1‘000 M Ohm Switching frequency 300 kHz (PFM) *Supply voltage must be discontinued at the end of short circuit duration. General Specifications Case material non conductive FR4 Weight 3.8 g (0.13oz) Reflow soldering profile Peak temp. 245°C (10 sec max.) 217°C for 90 sec. max. Convection reflow solder process is recommended *All specifications valid at nominal input voltage, full load and +25°C after warm-up time unless otherwise stated. http://www.microdc.cn Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 2 of 3 WRA-YT-2W&WRB-YT-2W Series Outline Dimensions mm (inches) Pin-Out Pin Single Dual 1 –Vin (GND) –Vin (GND) 7 No con. No con. 8 No con. Common 9 +Vout +Vout 10 –Vout –Vout 16 +Vin +Vin Outline Dimensions mm (inches) 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. Capacitor MAX load tested at input voltage range and full load. 4. All specifications measured at Ta=25℃, humidity<75%, nominal input voltage and rated output load unless otherwise specified. 5. Only typical models listed, other models may be different, please contact our technical person for more details. 6. In this data sheet, all the test methods of indications are based on corporate standards. RoHS COMPLIANT INFORMATION This series is compatible with RoHS soldering systems with a peak wave solder temperature of 300°C for 10 seconds. The pin termination finish on the SIP package type is Tin Plate, Hot Dipped over Matte Tin with Nickel Preplate. The DIP types are Matte Tin over Nickel Preplate. Both types in this series are backward compatible with Sn/Pb soldering systems. Microdc Professional Power Module,Inc. Tel:0086-20-86000646 REACH COMPLIANT INFORMATION E-mail:[email protected] Website:http://www.microdc.cn http://www.microdc.cn This series has proven that this product does not contain harmful chemicals, it also has harmful chemical substances through the registration, inspection and approval. Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 3 of 3