NCS12 Series www.murata-ps.com Isolated 12W 4:1 Input Single & Dual Output DC/DC Converters SELECTION GUIDE Order Code Input Voltage Output Output Voltage Current Nom. V V A 12 12 12 12 48 48 48 48 12 12 12 48 48 48 3.3 5 12 15 3.3 5 12 15 ±5 ±12 ±15 ±5 ±12 ±15 3.64 2.40 1.00 0.80 3.64 2.40 1.00 0.80 ±1.2 ±0.5 ±0.4 ±1.2 ±0.5 ±0.4 1.5kVDC Isolation NCS12S1203C NCS12S1205C NCS12S1212C NCS12S1215C NCS12S4803C NCS12S4805C NCS12S4812C NCS12S4815C NCS12D1205C NCS12D1212C NCS12D1215C NCS12D4805C NCS12D4812C NCS12D4815C 3.3V, 5V, 12V & 15V outputs SELECTION GUIDE (Continued) FEATURES UL 60950 recognition pending 4:1 Wide range voltage input Operating temperature range -40°C to 85°C Typical load regulation from 0.05% UL 94V-0 Package materials No electrolytic capacitors Order Code Thermal shutdown Under voltage lock out Current fold back PRODUCT OVERVIEW The NCS12 series of DC/DC converters offers single & dual output voltages from input voltage ranges of 9-36V and 18-75V. The NCS12 is housed in an industry standard package with a standard pinout. The NCS12 is packaged in a metal case for improved EMI shielding and is also encapsulated for superior thermal performance. Applications include telecommunications, battery powered systems, process control and distributed power systems. Load Regulation Positive Negative Positive Negative Output Output Output Output Typical Max % % % 1 0.5 0.1 0.1 1.2 0.5 0.1 0.1 0.15 0.05 0.05 0.15 0.05 0.05 1.5 1 0.3 0.3 2 1 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.1 0.5 0.4 0.4 2 1.5 1 2 1 1.5 MTTF1 Efficiency Min. % Typ. % Hrs 78 85 83 83 81 85 82 84 80 83 84 78 83 83 83.5 88 84.5 85.5 85.5 87.5 84.5 85 81.5 85 86 80 85 85 269,492 313,578 230,569 195,596 341,943 418,117 296,593 259,485 182,655 158,750 140,435 165,931 215,533 146,257 10% Load Typ. 12/48V A Input Current 10% Load Typ. 24V A 100% Load Typ. 12/48V A Typ. mVp/p Max mVp/p 0.15 0.1 0.1 0.06 0.05 0.05 0.03 0.03 0.04 0.04 0.05 0.03 0.03 0.03 0.1 0.16 0.06 0.1 0.08 0.08 0.06 0.06 0.07 0.07 0.07 0.07 0.07 0.07 1.2 1.1 1.2 1.2 0.3 0.3 0.3 0.3 1.25 1.2 1.5 0.3 0.3 0.4 60 50 80 100 100 90 75 90 35 40 55 70 84 55 125 125 125 125 125 125 125 125 100 100 100 100 100 100 NCS12S1203C NCS12S1205C NCS12S1212C NCS12S1215C NCS12S4803C NCS12S4805C NCS12S4812C NCS12S4815C NCS12D1205C NCS12D1212C NCS12D1215C NCS12D4805C NCS12D4812C NCS12D4815C Ripple and Noise INPUT CHARACTERISTICS Parameter Voltage range Under voltage lock out Power consumption at shutdown Reflected ripple current Conditions 12V input types 48V input types Turn on threshold 12V input types Turn off threshold 12V input types Turn on threshold 48V input types Turn off threshold 48V input types NCS12X12 NCS12X48 48V dual output types All other types Min. Typ. Max. Units 9 18 24 48 8.5 7.5 16.7 15.8 10 100 15 10 36 75 V V mW mA p-p 1 Calculated using MIL-HDBK-217 FN2, parts stress method with nominal input voltage at full load. For full details go to www.murata-ps.com/rohs www.murata-ps.com All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified. All enquiries: www.murata-ps.com/support KDC_NCS12C.A02 Page 1 of 14 NCS12 Series Isolated 12W 4:1 Input Single & Dual Output DC/DC Converters OUTPUT CHARACTERISTICS Parameter Conditions Min. Rated power All output types Minimal load to meet datasheet specification Positive outputs Voltage set point accuracy Negative outputs Line regulation Cross Regulation Transient response Low line to high line Typ. Max. Units 12 W % 10 ±2 ±3 0.1 1 ±6.5 ±5 5 0.04 0.3 ±4 ±2 Positive outputs Negative outputs D1205 & D4805 D1212, D1215 ,D4812, D4815 Peak deviation (12.5-37.5% & 37.5-12.5% swing) Single output types Settling time (within 1% Vout Nom.) Dual output types % % % %Vout 500 250 μs ISOLATION CHARACTERISTICS Parameter Conditions Min. Isolation test voltage Resistance Flash tested for 1 seconds Viso = 1kVDC S1203, S1205, S4803, S4805 All other types 1500 1 Capacitance Typ. Max. Units VDC GΩ 600 230 pF ABSOLUTE MAXIMUM RATINGS Short-circuit protection (for SELV input voltages) Control pin input voltage Lead temperature 1.0mm from case for 10 seconds (to JEDEC JESD22-B106 ISS C) Input voltage, NCS12 12V input types Input voltage, NCS12 48V input types 30 minutes 18V Max 260°C 40V 80V GENERAL CHARACTERISTICS1 Parameter Switching frequency Control pin input Conditions Min. S1203, S1205, S4803 & S4805 All other types Module on, pin unconnected or open collector floating Module off Typ. Max. 340 220 Units kHz 0.8 V Max. Units TEMPERATURE CHARACTERISTICS Parameter Conditions Min. Operation Storage With derating - see derating graph -40 -50 Case temperature above ambient 100% Load, Nom VIN, Still Air Thermal shutdown Case Temperature www.murata-ps.com NCS12S1203C NCS12S1215C, NCS12D1205C, NCS12D4805C All other types Single 3.3V & 5V outputs All other types Typ. 85 125 65 60 44 135 120 °C All enquiries: www.murata-ps.com/support KDC_NCS12C.A02 Page 2 of 14 NCS12 Series Isolated 12W 4:1 Input Single & Dual Output DC/DC Converters APPLICATION NOTES Output Capacitance and start-up times The NCS12 series does not require output capacitors to meet datasheet specification. To meet datasheet specification, total output capacitance should not exceed: Maximun Load Capacitance (per output) μF 470 470 220 220 470 470 220 220 220 100 100 220 100 100 Part No. NCS12S1203C NCS12S1205C NCS12S1212C NCS12S1215C NCS12S4803C NCS12S4805C NCS12S4812C NCS12S4815C NCS12D1205C NCS12D1212C NCS12D1215C NCS12D4805C NCS12D4812C NCS12D4815C Start-up times ms 16 22 7 8.5 14 22 8 8.5 5 8 9 5 7.5 7 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 specifi ed time, across a component designed to provide electrical isolation, to verify the integrity of that isolation. Murata Power Solutions NCS12 series of DC/DC converters are all 100% production tested at their stated isolation voltage. This is 1.5kVDC 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 specifi c agency approvals, such as the NCS12 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 NCS12 series has an ER 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 specifi ed 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 260ºC for 10 seconds. The pin termination finish on this product series is a Gold flash (0.05-0.10 micron) over Nickel Preplate. The series is backward compatible with Sn/Pb soldering systems. For further information, please visit www.murata-ps.com/rohs www.murata-ps.com All enquiries: www.murata-ps.com/support KDC_NCS12C.A02 Page 3 of 14 NCS12 Series Isolated 12W 4:1 Input Single & Dual Output DC/DC Converters CHARACTERISATION TEST METHODS Ripple & Noise Characterisation Method Ripple and noise measurements are performed with the following test configuration. C1 1μF X7R multilayer ceramic capacitor, voltage rating to be a minimum of 3 times the output voltage of the DC/DC converter 10μF tantalum capacitor, voltage rating to be a minimum of 1.5 times the output voltage of the DC/DC converter with an ESR of less C2 than 100mΩ at 100 kHz C3 100nF multilayer ceramic capacitor, general purpose R1 450Ω resistor, carbon film, ±1% tolerance R2 50Ω BNC termination T1 3T of the coax cable through a ferrite toroid RLOAD Resistive load to the maximum power rating of the DC/DC converter. Connections should be made via twisted wires Measured values are multiplied by 10 to obtain the specified values. Differential Mode Noise Test Schematic DC/DC Converter OSCILLOSCOPE C1 C2 C3 + SUPPLY Input - + R1 T1 R2 Y INPUT Output - R LOAD www.murata-ps.com All enquiries: www.murata-ps.com/support KDC_NCS12C.A02 Page 4 of 14 NCS12 Series Isolated 12W 4:1 Input Single & Dual Output DC/DC Converters EFFICIENCY VS LOAD NCS12S1203C NCS12S1205C 90 90 85 85 80 80 Efficiency (%) 24V 70 12V 65 Efficiency (%) 75 75 70 24V 65 12V 60 60 55 55 50 50 10% 20% 30% 40% 50% 60% 70% 80% 90% 45 10% 100% 20% 30% 40% 50% 60% 70% 80% 90% 100% Load (%) Load (%) NCS12S1212C NCS12S1215C 88 88 86 86 84 84 82 80 24V 12V 78 Efficiency (%) Efficiency (%) 82 80 24V 78 12V 76 76 74 74 72 72 70 70 10% 20% 30% 40% 50% 60% 70% 80% 90% 68 10% 100% 20% 30% 40% 50% Load (%) 60% 70% 80% 90% 100% Load (%) NCS12S4803C NCS12S4805C 90 90 85 85 80 75 48V 75 24V Efficiency (%) Efficiency (%) 80 70 48V 24V 65 60 70 55 65 50 60 10% 20% 30% 40% 50% 60% 70% 80% 90% 45 10% 100% 20% 30% 40% 60% 70% 80% 90% 100% NCS12S4815C 90 90 85 85 80 80 48V 75 24V Efficiency (%) Efficiency (%) NCS12S4812C 24V 70 65 65 20% 30% 40% 50% 60% Load (%) www.murata-ps.com 70% 80% 90% 100% 48V 75 70 60 10% 50% Load (%) Load (%) 60 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% Load (%) All enquiries: www.murata-ps.com/support KDC_NCS12C.A02 Page 5 of 14 NCS12 Series Isolated 12W 4:1 Input Single & Dual Output DC/DC Converters EFFICIENCY VS LOAD NCS12D1205C NCS12D1212C 90% 90% 80% 80% 70% Efficiency (%) 24V 50% 12V 40% Efficiency (%) 70% 60% 60% 24V 12V 50% 40% 30% 30% 20% 10% 10% 20% 30% 40% 50% 60% 70% 80% 90% 20% 10% 100% 20% 30% 40% 50% 60% 70% 80% 90% 100% Load (%) Load (%) NCS12D1215C NCS12D4805C 95% 90% 85% 80% 75% 70% 24V 12V 50% Efficiency (%) Efficiency (%) 65% 60% 55% 48V 24V 45% 35% 40% 25% 30% 15% 20% 10% 20% 30% 40% 50% 60% 70% 80% 90% 5% 10% 100% 20% 30% 40% 50% Load (%) 60% 70% 80% 90% 100% Load (%) NCS12D4812C NCS12D4815C 100% 90% 90% 80% 80% 70% Efficiency (%) 48V 50% 24V 40% Efficiency (%) 70% 60% 60% 48V 40% 30% 30% 20% 20% 10% 10% 24V 50% 20% 30% 40% 50% 60% Load (%) www.murata-ps.com 70% 80% 90% 100% 10% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% Load (%) All enquiries: www.murata-ps.com/support KDC_NCS12C.A02 Page 6 of 14 NCS12 Series Isolated 12W 4:1 Input Single & Dual Output DC/DC Converters TEMPERATURE DERATING NCS12S1203C Input Voltage = 12V Input Voltage Range = 9-36V 12 12 10 10 8 8 still air still air 200 lfm 200 lfm 4 100 lfm 6 100 lfm 6 4 400 lfm 400 lfm 2 2 0 0 -40 -20 0 20 40 60 80 -40 -20 0 20 40 60 80 NCS12S1205C Input Voltage Range = 9-36V Input Voltage = 12V 12 12 10 10 8 8 still air still air 6 4 100 lfm 6 200 lfm 4 100 lfm 200 lfm 400 lfm 400 lfm 2 2 0 0 -40 -20 0 20 40 60 -40 80 -20 0 20 40 60 80 NCS12S1212C Input Voltage = 12V Input Voltage Range = 9-36V 12 12 10 10 8 8 still air still air 200 lfm 200 lfm 4 100 lfm 6 100 lfm 6 4 400 lfm 400 lfm 2 2 0 0 -40 -20 0 20 40 60 -40 80 -20 0 20 40 60 80 NCS12S1215C Input Voltage = 12V Input Voltage Range = 9-36V 12 12 10 10 8 8 still air still air 6 4 100 lfm 6 200 lfm 4 100 lfm 200 lfm 400 lfm 400 lfm 2 2 0 0 -40 -20 0 www.murata-ps.com 20 40 60 80 -40 -20 0 20 40 60 80 All enquiries: www.murata-ps.com/support KDC_NCS12C.A02 Page 7 of 14 NCS12 Series Isolated 12W 4:1 Input Single & Dual Output DC/DC Converters TEMPERATURE DERATING NCS12S4803C Input Voltage = 48V Input Voltage Range = 18-75V 12 12 10 10 8 8 still air 100 lfm 200 lfm 200 lfm 4 still air 6 100 lfm 6 4 400 lfm 400 lfm 2 2 0 0 -40 -20 0 20 40 60 80 -40 -20 0 20 40 60 80 NCS12S4805C Input Voltage Range = 18-75V Input Voltage = 48V 12 12 10 10 8 8 still air still air 6 4 100 lfm 6 200 lfm 4 100 lfm 200 lfm 400 lfm 400 lfm 2 2 0 0 -40 -20 0 20 40 60 -40 80 -20 0 20 40 60 80 NCS12S4812C Input Voltage = 48V Input Voltage Range = 18-75V 12 12 10 10 8 8 still air still air 100 lfm 6 200 lfm 4 100 lfm 6 200 lfm 4 400 lfm 400 lfm 2 2 0 0 -40 -20 0 20 40 60 -40 80 -20 0 20 40 60 80 NCS12S4815C Input Voltage = 48V Input Voltage Range = 18-75V 12 12 10 10 8 still air 100 lfm 6 8 still air 100 lfm 6 200 lfm 4 400 lfm 2 200 lfm 4 400 lfm 2 0 0 -40 -20 0 www.murata-ps.com 20 40 60 80 -40 -20 0 20 40 60 80 All enquiries: www.murata-ps.com/support KDC_NCS12C.A02 Page 8 of 14 NCS12 Series Isolated 12W 4:1 Input Single & Dual Output DC/DC Converters TEMPERATURE DERATING NCS12D1205C Input Voltage = 12V Input Voltage Range = 9-36V 12 12 10 10 8 8 still air still air 6 4 100 lfm 6 200 lfm 4 100 lfm 200 lfm 400 lfm 400 lfm 2 2 0 0 -40 -20 0 20 40 60 -40 80 -20 0 20 40 60 80 NCS12D1212C Input Voltage Range = 9-36V Input Voltage = 12V 12 12 10 10 8 8 still air still air 6 4 100 lfm 6 200 lfm 4 100 lfm 200 lfm 400 lfm 400 lfm 2 2 0 0 -40 -20 0 20 40 60 -40 80 -20 0 20 40 60 80 NCS12D1215C Input Voltage = 12V Input Voltage Range = 9-36V 12 12 10 10 8 8 still air 100 lfm 6 still air 6 100 lfm 200 lfm 4 4 400 lfm 2 200 lfm 400 lfm 2 0 -40 -20 0 20 40 60 0 80 -40 -20 0 20 40 60 80 NCS12D4805C Input Voltage = 48V Input Voltage Range = 18-75V 12 12 10 10 8 still air 100 lfm 6 200 lfm 4 8 still air 100 lfm 6 200 lfm 4 400 lfm 400 lfm 2 2 0 0 -40 -20 0 www.murata-ps.com 20 40 60 80 -40 -20 0 20 40 60 80 All enquiries: www.murata-ps.com/support KDC_NCS12C.A02 Page 9 of 14 NCS12 Series Isolated 12W 4:1 Input Single & Dual Output DC/DC Converters TEMPERATURE DERATING NCS12D4812C Input Voltage = 48V Input Voltage Range 18-75V 12 12 10 10 8 8 still air still air 6 4 100 lfm 6 200 lfm 4 100 lfm 200 lfm 400 lfm 400 lfm 2 2 0 0 -40 -20 0 20 40 60 -40 80 -20 0 20 40 60 80 NCS12D4815C Input Voltage = 48V Input Voltage Range = 18-75V 12 12 10 10 8 8 still air still air 6 4 100 lfm 6 200 lfm 4 100 lfm 200 lfm 400 lfm 400 lfm 2 2 0 0 -40 -20 0 www.murata-ps.com 20 40 60 80 -40 -20 0 20 40 60 80 All enquiries: www.murata-ps.com/support KDC_NCS12C.A02 Page 10 of 14 NCS12 Series Isolated 12W 4:1 Input Single & Dual Output DC/DC Converters EMC FILTERING AND SPECTRA FILTERING The module includes a basic level of filtering, sufficient for many applications. Where lower noise levels are desired, filters can easily be added to achieve any required noise performance. A DC/DC converter generates noise in two principle forms: that which is radiated from its body and that conducted on its external connections. There are three separate modes of conducted noise: input differential, output differential and input-output. This last appears as common mode at the input and the output, and cannot therefore be removed by filtering at the input or output alone. The first level of filtering is to connect capacitors between input and output returns, to reduce this form of noise. It typically contains high harmonics of the switching frequency, which tend to appear as spikes on surrounding circuits. The voltage rating of this capacitor must match the required isolation voltage. (Due to the great variety in isolation voltage and required noise performance, this capacitor has not been included within the converter.) Input ripple is a voltage developed across the internal Input decoupling capacitor. It is therefore measured with a defined supply source impedance. Although simple series inductance will provide filtering, on its own it can degrade the stability. A shunt capacitor is therefore recommended across the converter input terminals, so that it is fed from a low impedance. If no filtering is required, the inductance of long supply wiring could also cause a problem, requiring an input decoupling capacitor for stability. An electrolytic will perform well in these situations. The input-output filtering is performed by the common-mode choke on the primary. This could be placed on the output, but would then degrade the regulation and produce less benefit for a given size, cost, and power loss. Radiated noise is present in magnetic and electrostatic forms. The latter is suppressed by the metal case, which is connected to the output return, typically a zero-volt point. Thanks to the small size of these units, neither form of noise will be radiated “efficiently”, so will not normally cause a problem. Any question of this kind usually better repays attention to conducted signals. EMC FILTER AND VALUES TO OBTAIN SPECTRA AS SHOWN The following filter circuit shows the input filter typically required to meet CISPR22 Quasi-PeakCurve B. L1 DC C1 C2 C3 DC C1, C2 1μF Polyester or ceramic capacitor C3 47μF Electrolytic capacitor C5 C4 & C5 10nF 250 VAC Y Rated (15nf SXX03 & SXX05) L1 1μH Common-mode choke (Murata part number 51105C) www.murata-ps.com C4 All enquiries: www.murata-ps.com/support KDC_NCS12C.A02 Page 11 of 14 NCS12 Series Isolated 12W 4:1 Input Single & Dual Output DC/DC Converters EMC FILTERING AND SPECTRA NCS12S1205C 80 80 70 70 60 60 50 50 dBuV dBuV NCS12S1203C 40 40 30 30 20 20 10 10 0 1.00E+05 1.00E+06 1.00E+07 0 1.00E+05 1.00E+08 80 70 70 60 60 50 50 40 30 20 20 10 10 1.00E+06 1.00E+07 0 1.00E+05 1.00E+08 Frequency (Hz) 80 70 70 60 60 50 50 dBuV dBuV 1.00E+07 1.00E+08 NCS12S4805C 80 40 40 30 30 20 20 10 10 1.00E+06 1.00E+07 0 1.00E+05 1.00E+08 1.00E+06 1.00E+07 1.00E+08 Frequency (Hz) Frequency (Hz) NCS12S4812C NCS12S4815C 80 80 70 70 60 60 50 50 dBuV dBuV 1.00E+06 Frequency (Hz) NCS12S4803C 40 40 30 30 20 20 10 10 0 1.00E+05 1.00E+08 40 30 0 1.00E+05 1.00E+07 NCS12S1215C 80 dBuV dBuV NCS12S1212C 0 1.00E+05 1.00E+06 Frequency (Hz) Frequency (Hz) 1.00E+06 1.00E+07 Frequency (Hz) www.murata-ps.com 1.00E+08 0 1.00E+05 1.00E+06 1.00E+07 1.00E+08 Frequency (Hz) All enquiries: www.murata-ps.com/support KDC_NCS12C.A02 Page 12 of 14 NCS12 Series Isolated 12W 4:1 Input Single & Dual Output DC/DC Converters EFFICIENCY VS LOAD NCS12D1212C 80 80 70 70 60 60 50 50 dBuV dBuV NCS12D1205C 40 40 30 30 20 20 10 10 0 1.00E+05 1.00E+06 1.00E+07 0 1.00E+05 1.00E+08 Frequency (Hz) 70 70 60 60 50 50 dBuV dBuV 80 40 40 30 30 20 20 10 10 1.00E+06 1.00E+07 0 1.00E+05 1.00E+08 1.00E+06 1.00E+07 1.00E+08 Frequency (Hz) Frequency (Hz) NCS12D4812C NCS12D4815C 80 80 70 70 60 60 50 50 dBuV dBuV 1.00E+08 NCS12D4805C 80 40 40 30 30 20 20 10 10 0 1.00E+05 1.00E+07 Frequency (Hz) NCS12D1215C 0 1.00E+05 1.00E+06 1.00E+06 1.00E+07 Frequency (Hz) www.murata-ps.com 1.00E+08 0 1.00E+05 1.00E+06 1.00E+07 1.00E+08 Frequency (Hz) All enquiries: www.murata-ps.com/support KDC_NCS12C.A02 Page 13 of 14 NCS12 Series Isolated 12W 4:1 Input Single & Dual Output DC/DC Converters PACKAGE SPECIFICATIONS MECHANICAL DIMENSIONS PIN CONNECTIONS NCS12S1205C Pin Function Single Dual XYYWW 1 2 3 9 11 14 16 22 23 Control -VIN -VIN No pin N/C +VOUT 0V +VIN +VIN 0.787 (20.0) 1.26 (32.0) 0.394 (10.0) Control -VIN -VIN 0V -VOUT +VOUT 0V +VIN +VIN TUBE OUTLINE DIMENSIONS 1.00±0.15 (0.04±0.006) 0.176-0.208 (4.46-5.27) 23.0 (0.906) 0.02 (0.5) 0.020 (0.50) 8.5 (0.335) 0.200 (5.08) 0.1 (2.54) 1 2 3 0.600 (15.24) 9 20.5 (0.807) Tube length 520 (20.47) All dimensions in mm (inches) ±0.25 (0.010). Quantity: 15 11 RECOMMENDED FOOTPRINT DETAILS Bottom View 8 HOLES 1.0mm 22 16 14 Ø 23 2.54 (0.1) 0.100 (2.54) 0.166-0.207 (4.21-5.26) Weight: 17g All dimensions in inches (mm) ± 0.020 (0.5) except pin to pin tolerance ±0.010 (0.25). All pins on a 0.100 (2.54) pitch and within 0.010 (0.25) of true position. 2.54 (0.1) The copper case is connected to the 0V pin(s). Care is needed in the design of this circuit board on which the converter is mounted. Top side tracks must not contact the edge of the case on the underside of the unit. Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. ISO 9001 and 14001 REGISTERED www.murata-ps.com/support All dimensions in mm (inches) ±0.25 (± 0.010). 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. © 2013 Murata Power Solutions, Inc. All enquiries: www.murata-ps.com/support KDC_NCS12C.A02 Page 14 of 14