Here is a Lionel 2101350 O Gauge MKT LOTS 2021 Convention "Katy" Autoloader #4221. This item has been graded per TCA standards C-8: Like New based on visual appearance. The original box is included.

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Here is a Lionel 2101350 O Gauge MKT LOTS 2021 Convention "Katy" Autoloader #4221. This autoloader features operating couplers and die-cast sprung metal trucks. Please check the photos for a detailed look at this item. This item has been graded per TCA standards C-8: Like New based on visual appearance. The original box is included.

HO Scale InterMountain 48662-02 MON Monon Railroad 2-Bay Covered Hopper #4221 Sold Out

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TX4221是一款专为升压、升降压开关电源设计的专用DC-DC控制器芯片。 支持5-40V输入电压范围,通过扩展电路输入供电,也可以支持400V以上的输入电压范围。 采用固定频率的PWM控制方式,并在轻载条件下自动降频提高转换效率。 内置高精度误差放大器、振荡器、频率补偿电路、过流保护、EN脚关断功能、软启动和过温保护电路,简化外围设计并提高系统可靠性。 采用SOP8封装。 TX4221由XDS (芯鼎盛)设计生产，立创商城现货销售。 TX4221价格参考￥1.89。