Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
Available for RFQ
Technical data
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SMAJ5.0CA 是 DOWO(东沃)推出的一款双向 TVS 晶片二极管,采用玻璃钝化芯片技术,封装为 DO-214AC(SMA)。该器件专为瞬态过压浪涌保护设计,响应速度极快,能在突发脉冲事件中钳位并吸收能量,保护下游电路免受损坏。
400W(10/1000µs)表明器件能在较长尾部的冲击波形下吸收大量能量,适合雷击感应或工业开关冲击类的浪涌情形。双向结构适用于可能出现正负极性瞬变的电路。9.2V 的钳位电压在 5V 系统中提供可靠保护,但需要注意 800µA 的泄漏在对电量敏感的电池供电设备中可能较高。
适用于 5V 电源总线、USB/外围接口保护、通讯接口(如 RS-485、CAN 总线需评估)、工业控制器、交换机和电源模块的入口级浪涌保护。对于纯直流稳定电源,若对泄漏敏感,可优先考虑单向型号。
DO-214AC(SMA)封装便于波峰焊或回流焊自动化组装,热耗散能力良好。玻璃钝化工艺提高了结点稳定性与长期可靠性,符合 RoHS 环保要求。重复浪涌能力受功耗及热环境限制,规范使用可获得长期稳定保护效果。
SMAJ5.0CA 提供对 5V 级系统的高能量瞬态保护,钳位性能优秀、响应迅速,适合工业与消费类设备的入口防护。设计时应综合评估泄漏、钳位电压与系统容忍度,选择双向或单向型号以满足具体应用需求。若需更高能量吸收能力或更低泄漏,可与厂商讨论更适合的型号或并联/级联保护方案。
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Use the form for single models, category sourcing, and multi-line BOM requirements.
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.
Buyer sourcing scenarios
Typical RFQ scenarios based on the WMSIC form fields, catalog data, manual review steps, and shipment preparation workflow.
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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