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VT1E221M0810是容强(ROQANG)品牌推出的一款通用型贴片铝电解电容,主打中低压、中等容值的滤波/储能场景,适配自动化贴装生产需求,广泛应用于消费电子、工业控制等领域。作为国产铝电解电容的主流品牌之一,容强在SMD封装产品的可靠性与成本控制上具备成熟经验,该型号是其常规产品线中的核心规格之一。
容值为220uF(型号中“221”代表22×10¹=220uF),精度±20%——满足绝大多数通用电路对容值偏差的要求,无需高精度校准即可覆盖电源滤波、耦合等场景,平衡了性能与成本。
额定电压25V(型号中“E”对应25V电压等级),属于中低压范畴,可覆盖5V-25V的电路供电系统,建议实际工作电压留1.2-1.5倍余量(如≤20V),避免过压击穿。
纹波电流参数为183mA@120Hz——120Hz是整流后电源纹波的典型频率,该参数反映电容在交流纹波下的散热能力:183mA的水平可有效抑制常规电源电路的低频纹波,减少电容发热导致的寿命衰减,适配开关电源输出滤波、线性电源稳压后滤波等场景。
采用SMD贴片封装,电容体尺寸为D8mm×L10.2mm(直径8mm,长度10.2mm),属于小型化设计,节省PCB空间,适配紧凑式电子设备(如智能手机、小型家电控制板)。
卷绕式铝电解结构(铝箔卷绕+电解液+引出端),SMD封装通过焊盘与PCB连接,避免插件式手工焊接,提升生产效率;焊盘设计匹配标准SMD电容规范,无需特殊定制。
铝电解电容带极性,需注意PCB极性标识与电容引脚(通常长脚为正极)一致,反向焊接会导致击穿甚至爆炸。
-40℃~+105℃范围内,容值偏差控制在±20%以内,低温(-40℃)下容值下降不超过30%,高温(105℃)下漏电流稳定,避免电路失效。
183mA@120Hz的纹波电流,可有效降低电源输出纹波(如开关电源输出纹波可控制在50mV以内),提升后级电路(如MCU、传感器)的工作稳定性。
在同规格SMD铝电解中,容强该型号的成本控制较好,适合批量采购的电子厂商,降低BOM成本。
VT1E221M0810凭借宽温、长寿命、小型化的特点,成为通用电子设备电源滤波的高性价比选择,适配多数中低压电路的实际需求。
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Product sourcing intelligence
WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.
Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.
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The buyer shares the full part number, package requirement, quantity, destination, and available product photos so the quotation can record the exact version under review.
A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.
The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.
Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.
Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.
When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.
Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.
The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.
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