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参数资料
| 型号： | NMK0515SAC |
| 厂商： | Murata Power Solutions Inc |
| 文件页数： | 3/6页 |
| 文件大小： | 0K |
| 描述： | CONV DC/DC 2W 5VIN 15VOUT SIP |
| 产品培训模块： | Low Power DC/DC Converters <5W |
| 标准包装： | 25 |
| 系列： | NMK |
| 类型： | 隔离 |
| 输出数： | 1 |
| 电压 - 输入（最小）： | 4.5V |
| 电压 - 输入（最大）： | 5.5V |
| Voltage - Output 1： | 15V |
| 电流 - 输出（最大）： | 133mA |
| 电源（瓦） - 制造商系列： | 2W |
| 电压 - 隔离： | 3kV（3000V） |
| 安装类型： | 通孔 |
| 封装/外壳： | 7-SIP 模块（4 引线） |
| 尺寸/尺寸： | 0.77" L x 0.30" W x 0.40" H（19.6mm x 7.6mm x 10.2mm） |
| 包装： | 管件 |
| 工作温度： | -40°C ~ 85°C |
| 效率： | 87% |
| 电源（瓦特）- 最大： | 2W |
| 产品目录页面： | 2717 (CN2011-ZH PDF) |
| 其它名称： | 811-1549-5 |
NMK Series
3kVDC Isolated 2W Single & Dual Output DC/DC Converters
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 speci?ed time, across a component designed to provide electrical isolation, to verify the integrity of that isolation.
Murata Power Solutions NMK series of DC/DC converters are all 100% production tested at their stated isolation voltage. This is 3kVDC for 1 minute.
A question commonly asked is, “What is the continuous voltage that can be applied across the part in normal operation?”
The NMK 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 sys-
tem. 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 NMK 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 speci?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.
SAFETY APPROVAL
The NMK series has been recognised by Underwriters Laboratory (UL) to UL 60950 for functional insulation in a maximum ambient temperature of 85oC and/or case temperature
limit of 130oC. Case temperature measured on the face opposite the pins. File number E151252 applies.
The NMK Series of converters are not internally fused so to meet the requirements of UL 60950 an anti-surge input line fuse should always be used as below:
NMK05xxSC/SAC: 2A
NMK12xxSC/SAC: 0.75A
NMK15xxSC/SAC: 0.75A
NMK24xxSC/SAC: 0.375A
RoHS COMPLIANT INFORMATION
This series is compatible with RoHS soldering systems with a peak wave solder temperature of 260°C for 10 seconds. The pin
termination ?nish 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.
For further information, please visit www.murata-ps.com/rohs
APPLICATION NOTES
Minimum Load
The minimum load to meet datasheet speci?cation is 10% of the full rated load across the speci?ed input voltage range. Lower than 10% minimum loading will result in an
increase in output voltage, which may rise to typically double the speci?ed output voltage if the output load falls to less than 5%.
Unbalanced Load
The NMK series offers unbalanced loading capabilities with up to the full 2W available from a single output. However, when operated in this mode there may be a slight
performance decrease in ef?ciency and load regulation.
www.murata-ps.com/support
KDC_NMK.E04 Page 3 of 6
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相关代理商/技术参数 |
参数描述 |
|---|---|
| NMK0515SC | 功能描述:DC/DC转换器 5Vin +/-15Vout +/-67mA 2W SIP RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸: |
| NMK075BK | 制造商:Hammond Power Solutions 功能描述:DISTRIBUTION TRANSFORMER, PRI: 208 DELTA V, SEC: 480Y/277V, 75 KVA |
| NMK075KB | 制造商:Hammond Power Solutions 功能描述:DISTRIBUTION TRANSFORMER, PRI: 480 DELTA V, SEC: 208Y/ 120V, 75 KVA |
| NMK075KD | 制造商:Hammond Power Solutions 功能描述:DISTRIBUTION TRANSFORMER, PRI: 480 DELTA V, SEC: 240 DELTA/ 120VCT , 75 KVA |
| NMK075KK | 制造商:Hammond Power Solutions 功能描述:DISTRIBUTION TRANSFORMER, PRI: 480 DELTA V, SEC: 480Y/277V , 75 KVA |
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