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Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
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VBA4658 是 VBsemi(微碧半导体)推出的一款双通道 P 沟道场效应晶体管,封装为 SOP-8。器件耐压 60V,单通道连续漏极电流 5.3A,适用于需要高侧开关或反向控制的中功率场合。器件在宽温度范围内工作(-55℃ 至 +150℃),可靠性适应工业级应用。
VBA4658 在 60V 级别上提供较低的导通电阻,适合做高侧开关、负载切换、反并联保护、逆变器/电源管理的低压侧控制等场景。较小的 RDS(on) 有利于降低导通损耗;适中的 Qg 和 Ciss 指出在驱动电路设计上需兼顾驱动能力和开关损耗。
典型应用:
VBA4658 的 Qg≈32nC(10V)表明在要求快速开关时需要相对较强的驱动电流以缩短开关时间,否则会增加开关损耗。由于为 P 沟道器件,驱动电压极性与 N 沟道相反:开启时需使栅源电压(Vgs)为负方向(栅极相对于源极下降),关断时 Vgs 接近 0V 或正向。注意器件在 4.5V 驱动下 RDS(on) 仅略微升高(60mΩ),可在部分低电压驱动系统中直接使用。
SOP-8 封装提供了适中的空间和散热通道,器件额定功耗为 4W。在实际电路中应注意合理的 PCB 散热设计:增大铜箔面积、优化散热孔与热过孔布局、并保证与热源的距离和对流环境。若连续高电流工作,应评估结温并确保在环境温度与功耗条件下不会超出器件允许范围。
VBA4658 以其 60V 耐压、低 RDS(on) 与双通道集成的形式,为中等功率、高侧控制与电源切换应用提供实用的器件选择。选型时请以完整的器件数据手册为依据,结合系统实际工况进行热与驱动设计。
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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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