【应用】国产汽车级铁氧体片式电感用于汽车空调执行器,过AEC-Q200认证,有700mA大电流
汽车空调(HVAC)执行器用于风门控制,通过改变风门角度、调整送风温度,以及吹风模式,内循环等,营造舒适的车内环境。当下汽车空调执行器现在的体积向着小型化,信息智能化发展,因此需要的元件也需要小型化,同时需要满足客户项目所必须的要求。
本文所写项目中,客户要求如下:必须过车规级认证,具有宽温工作范围-55-125℃,最高使用温度10℃,电流是500mA,电感值10uH,此电感使用在执行器的控制板上,要求抗震性能要好,因此绕线插件不行,必须是类似于MLCC的贴片式。
根据以上客户需求,笔者推荐了光颉科技的汽车级铁氧体片式电感MLH05MT4R7A028,虽然电容值仅4.7uH不够大,但最大电流700mA,在相同电感值、相同体积条件下市场上没有电流更大的竞品,且过AEC-Q200认证,质量可靠,目前客户已经在测试,暂时没有问题。
这个电感使用的主要优点如下:
1、AEC-Q200认证,车规级高质量
2、同体积、同感值条件下具有大电流。目前市场上大部分产品的电流为500mA,该产品则可以做到700mA。
3、具有宽温度范围-55-125℃。客户项目最高使用温度120℃,能够满足客户需要。
4、静电耐压大于1000VDC。
5、可靠性高,具备非常高的振动测试标准,通过高达5G振动持续20分钟,10-2000Hz内X、Y、Z 3个方向各12个周期测试。
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光颉科技电感选型表
提供光颉科技多种电感选型,有高频电感、低频电感、磁珠、小型功率电感、功率电感、绕线功率电感、共模滤波器以及车用电感等,多种尺寸可供各种4C 应用、各种电子设备使用。
产品型号
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品类
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Seires
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Type
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Size
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Inductance Tolerance(%、nH)
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Inductance(nH、μH)
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AL02BT1N1
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Thin Film Chip Inductor
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AL Series
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AL02
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0201
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±0.1nH
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1.1nH
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选型表 - 光颉科技 立即选型
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光颉科技(Viking)电阻/电容/电感选型指南
目录- Introduction of Viking Resistors/Capacitors Chip Inductor / Chip Bead Power Inductor Application Field
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产品型号
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品类
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Seires
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Type
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Size
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Resistance Tolerance(%)
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TCR(PPM/℃)
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Resistance(mΩ、Ω、KΩ、MΩ)
|
AR02ATB0510
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Thin Film Precision Chip Resistor
|
AR Series
|
AR02
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0402
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±0.05%
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±10PPM/℃
|
51Ω
|
选型表 - 光颉科技 立即选型
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Jumper resistor is also known as 0Ω resistor. ① In circuit design, the power supply can be separated as multiple channels with 0Ω resistor for commissioning or compatible design. ② It can be used as jumper. If certain section of the line is not used, just simply attached a 0Ω resistor (appearance will not be affected). ③ When the parameter of the matching circuit is uncertain, it can be replaced by 0Ω first and replace it with component with specific value during commissioning. ④ When wiring is impossible, you can also add a 0Ω resistor. ⑤ Under high-frequency signal, it can act as inductor or capacitor (related to the characteristics of external circuit) for dealing with EMC problems. ⑥ Used for cross-over connection of current circuit to provide shorter returning path and reduce interference. ⑦ Sometimes, user will change settings during circuit configuration. In order to reduce maintenance cost, 0Ω resistor can be used as alternative of jumper and welded on board. The actual resistance of a 0Ω resistor is not zero, the definition of which is ≦50mΩ (or ≦20mΩ). Therefore, parts with ±1% or ±5% share the same specifications. For functional perspective, jumper resistance dose not require precision. What user needed is the maximum rated current (i.e. current allowed to pass) instead of cannot be purchased or produced.
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品类:Automotive Grade Multilayer Ferrite Chip Inductor
价格:
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