NDTS Series www.murata-ps.com Isolated 3W Single Output DC-DC Converters SELECTION GUIDE Order code Input voltage ated output voltage LOMouaintdp. 1ut cFuurrlle lnotad Input currentfull load Efficiency (Min.) Isolationapacitance MTTF 2 R c V (Nom.) V mA mA mA % pF kHrs NDTS0503C 5 3.3 227 909 898 63 28 1658 NDTS0505C 5 5 150 600 806 71 30 1665 NDTS0512C 5 12 63 250 769 76 32 1650 NDTS1212C 12 12 63 250 310 75 35 1650 NDTS2403C 24 3.3 227 909 172 71 32 1671 FEATURES NDTS2405C 24 5 150 600 156 78 32 1673 (cid:132) Industry standard footprint NDTS2412C 24 12 63 250 149 80 35 1650 Recommended (cid:132) Single isolated output Alternative (cid:132) Short circuit protection NDTS0515C 5 15 50 200 757 77 33 1633 NDY0515C NDTS1203C 12 3.3 227 909 350 71 29 1668 NCS3S1203SC (cid:132) Operating temperature range –40°C to NDTS1205C 12 5 150 600 320 73 32 1665 NDY1205C +85°C NDTS1215C 12 15 50 200 310 76 32 1633 NDY1215C (cid:132) Low profile 24 pin case NDTS2415C 24 15 50 200 147 84 35 1617 NDY2415C NDTS4803C 48 3.3 227 909 87 71 32 1676 NCS3S4803SC (cid:132) 2:1 Wide input range NDTS4805C 48 5 150 600 83 75 32 1668 NDY4805C (cid:132) 1kVDC Isolation ‘Hi Pot Test’ NDTS4812C 48 12 63 250 76 80 40 1631 NCS3S4812SC NDTS4815C 48 15 50 200 75 80 40 1600 NCS3S4815SC (cid:132) 5V, 12V & 24V Input (cid:132) 3.3V, 5V & 12V Output INPUT CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units (cid:132) Internal SMD construction All NDTS05 types 4.5 5 9 (cid:132) Fully encapsulated Voltage range All NDTS12 types 9 12 18 V All NDTS24 types 18 24 36 DESCRIPTION All NDTS05 types 50 150 Reflected ripple current1 All NDTS12 types 30 100 mA p-p The NDTS series is a range of low profile DC-DC All NDTS24 types 40 50 converters offering a single regulated output over a 2:1 input voltage range. All parts deliver 3W output power up to 85°C without heatsinking. A OUTPUT CHARACTERISTICS flyback oscillator design with isolated feedback Parameter Conditions Min. Typ. Max. Units is used to give regulation over the full operating Voltage set point accuracy With external input/output capacitors ±1 ±3 % range of 25% to 100% of full load. It is strongly Low line to high line with external input/ recommended that external capacitors be used Line regulation 0.15 0.5 % output capacitors on input and output to guarantee performance over full load and input voltage range (see 0503, 0505 0.8 1.0 recommended filter circuit for values). Minimum load to rated Load regulation load with external input/ 2403, 2405 0.8 1.2 % output capacitors 12V outputs 0.1 0.5 BW = 20Hz to 300kHz with external input/ Ripple 15 40 mV rms output capacitors Ripple & noise BW = DC to 20MHz with external input/output 90 150 mV p-p capacitors 1. Please refer to relected ripple current measurement circuit on page 2. 2. Calculated using MIL-HDBK-217F with nominal input voltage at full load (ground benign) at 25°C. All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified. For full details go to www.murata-ps.com/rohs www.murata-ps.com/support KDC_NDTS.F01 Page 1 of 5

NDTS Series Isolated 3W Single Output DC-DC Converters ABSOLUTE MAXIMUM RATINGS Short-circuit protection 8 Hours Lead temperature 1.5mm from case for 10 seconds 300°C Minimum output load for specification1 25% of rated output Input voltage 05 types 10V Input voltage 12 types 20V Input voltage 24 types 40V Free air space 10mm Min. around component GENERAL CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Switching frequency 100% to 25% load, VIN Min. to Max. 70 650 kHz ISOLATION CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Isolation voltage Flash tested for 1 second 1000 VDC Resistance Resistance 1 GΩ TEMPERATURE CHARACTERISTICS Parameter Conditions Min. Typ. Max. Units Operation -40 85 Storage -50 125 NDTS1212C, NDTS2405C, NDTS2412C 30 ºC Case temperature rise above ambient in still air NDTS0505C, NDTS0512C, NDTS2403C 40 NDTS0503C 50 TECHNICAL NOTES ISOLATION VOLTAGE ‘Hi Pot Test’, ‘Flash Tested’, ‘Withstand Voltage’, ‘Proof 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. Murata Power Solutions NDTS 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?” For a part holding no specific agency approvals, such as the NDTS series, 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-accessible 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 NDTS series has an EI ferrite core, 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 rated for better than functional isolation where the wire enamel insulation is always supplemented by a further insulation system of physical spacing or barriers. RoHS COMPLIANCE INFORMATION This series is compatible with RoHS soldering systems with a peak wave solder temperature of 300ºC for 10 seconds. The pin termination finish on this product series is Tin. The series is backward compatible with Sn/Pb soldering systems. For further information, please visit www.murata-ps.com/rohs 1. Please refer to minimum load application note on page 4. www.murata-ps.com/support KDC_NDTS.F01 Page 2 of 5

NDTS Series Isolated 3W Single Output DC-DC Converters APPLICATION NOTES Recommended Input & Output Capacitors Although these converters will work without external capacitors, they are necessary in order to guarantee the full parametric performance over the full line and load range. All parts have been tested and characterized using the following values and test circuit. Input Voltage CIN Output Voltage COUT 5V, 12V 100μF, 25V (0.25Ω at 100kHz) 3.3V, 5V 220μF, 16V (0.12Ω at 100kHz) 24V 10μF, 100V (1.5Ω at 100kHz) 12V 100μF, 25V (0.25Ω at 100kHz) Test circuit + V OUT Supply + VIN + VIN CIN NDTS COUT Supply - V - V IN IN - V OUT Reflected Ripple Current Measurement Current Probe 12μH Supply + V + V + V IN IN OUT Load NDTS COUT C C 1 IN Supply - VIN - VIN - VOUT C1 = 220μF, ESR < 0.1Ω at 100kHz www.murata-ps.com/support KDC_NDTS.F01 Page 3 of 5

NDTS Series Isolated 3W Single Output DC-DC Converters APPLICATION NOTES (continued) Minimum Load The minimum load for correct operation is 25% of the full rated load across the specified input voltage range. Lower loads may cause a significant increase in output ripple and may cause the output voltage to exceed its specification transiently during power-down when the input voltage also falls below its rated minimum. The following graphs show the typical required minimum load required for stable operation in mA verses input voltage. Some variants are not included as they do not typically require a minimum load for stable operation: NDTD1212C. The NDTS series will operate from a wider input range than specified in the input characteristics datasheet table with output power derating. Please contact Murata Power Solutions for further information. NDTS05XXC 200 180 160 A) 140 0503 m m Load ( 120 0505 u 100 m ni Mi 80 60 0512 40 20 0 4.5 5.5 6.5 7.5 8.5 9.5 10.5 11.5 Input Voltage (V) NDTS24XXC 200 180 160 140 mA) 120 2403 m Load ( 100 Minimu 80 2405 60 40 20 2412 0 10 15 20 25 30 35 40 45 Input Voltage (V) www.murata-ps.com/support KDC_NDTS.F01 Page 4 of 5

NDTS Series Isolated 3W Single Output DC-DC Converters PACKAGE SPECIFICATIONS MECHANICAL DIMENSIONS PIN CONNECTIONS 32.26 (1.270) Pin Function 5.08 (0.200) (cid:14)(cid:55)(cid:42)(cid:47) (cid:19) (cid:19)(cid:20) (cid:12)(cid:55)(cid:42)(cid:47) 2 -VIN (cid:14)(cid:55)(cid:42)(cid:47) (cid:20) (cid:19)(cid:19) (cid:12)(cid:55)(cid:42)(cid:47) 3 -VIN NDTSXXXXC 9 NA 11 NC XYYWW 14.66 (0.577) 14 +VOUT 16 -VOUT (cid:47)(cid:34) (cid:26) (cid:18)(cid:23) (cid:14)(cid:55)(cid:48)(cid:54)(cid:53) 22 +VIN 2.54 (0.100) 23 +VIN (cid:47)(cid:36) (cid:18)(cid:18) (cid:18)(cid:21) (cid:12)(cid:55)(cid:48)(cid:54)(cid:53) NA - Not available for electrical connection. 7.00 (0.275) NC - No internal connection. 5.00 (0.197) 4.00 (0.157) RECOMMENDED FOOTPRINT DETAILS 0.73 (0.029) x8 HOLES 0.63 (0.025) Ø11..4350 ((00..005571)) 22.86 (0.900) 4.70 (0.185) 2.54 (0.1) 0.30 (0.012) 0.20 (0.008) 15.25 (0.600) 2.54(0.1) All dimensions in mm(inches) ±0.25(0.010”). All dimensions in mm(inches) ±0.25(0.010”). All pins on a 2.54(0.10”) pitch and within All pins on a 2.54(0.10”) pitch and within ±0.25(0.010”) of true position. Weight: 6.2g ±0.25(0.010”) of true position. TUBE OUTLINE DIMENSIONS 20.70±0.55 (0.815±0.022) 16.70±0.55 (0.657±0.022) 11.70±0.80 (0.461±0.031) 5.50±0.25 (0.217±0.010) 16.70±0.80 (0.657±0.031) 6.80±0.55 (0.268±0.022) 0.60±0.15 (0.024±0.006) All dimensions in mm (inches) ±0.5mm (0.20”). Tube length : 520mm±2mm (20.47±0.079”). Tube Quantity : 15 This product is subject to the following operating requirements and the Life and Safety Critical Application Sales Policy: Refer to: http://www.murata-ps.com/requirements/ Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. © 2017 Murata Power Solutions, Inc. www.murata-ps.com/support KDC_NDTS.F01 Page 5 of 5

Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: M urata: NDTS0503C NDTS0505C NDTS0512C NDTS0515C NDTS1203C NDTS1205C NDTS1212C NDTS1215C NDTS2403C NDTS2405C NDTS2412C NDTS2415C NDTS4803C NDTS4805C NDTS4812C NDTS4815C