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.
2N4403 为小信号 PNP 三极管,具备较高的极限集电极电流能力与较宽的高频响应(fT≈200 MHz),在中等电流范围内仍保持较好的直流增益(hFE≈100)。低的漏电流(Icbo≈50 nA)有利于高阻态下的静态性能。TO-92 通孔封装适合手工焊接与快速原型开发。
BLUE ROCKET 提供的 2N4403 为 TO-92-3 通孔塑封,体积小、便于手工焊接与点样测试。该封装适合低至中等功率应用的快速验证与小批量生产。批量装配时可考虑 SOT-23 等表贴替代型号以优化空间与散热。
本条目数量为 1 个 PNP 三极管,品牌 BLUE ROCKET。存储建议干燥、防潮、防静电并避免高温(通常应遵循厂商提供的储存条件),长期库存应注意防止引脚氧化。购买时请核对批号与封装图纸,以确保引脚排列和参数满足设计要求。
总结:2N4403(BLUE ROCKET,TO-92)是一款适用于中等电流、小信号放大与高侧开关的 PNP 三极管,具有良好的增益和高频特性,但在功耗和基极反向耐压方面需要在设计中予以留意。
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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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