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.
1SMA4746A 是一款由 LGE(鲁光)公司生产的稳压二极管,采用独立式配置,封装形式为 SMA(DO-214AC)。该器件主要用于电路中的电压稳定和保护,具有高可靠性和优异的电气性能,广泛应用于电源管理、通信设备、工业控制等领域。
稳压值(标称值):18V
该稳压二极管的标称稳压值为 18V,能够在电路中提供稳定的电压输出,确保后续电路的正常工作。
稳压值范围:17.1V ~ 18.9V
实际稳压值在 17.1V 到 18.9V 之间,具有一定的容差范围,适用于对电压精度要求较高的应用场景。
反向电流(Ir):5μA @ 13.7V
在反向电压为 13.7V 时,反向电流仅为 5μA,表明该器件在反向偏置时具有极低的漏电流,能够有效减少功耗。
功率(Pd):1W
最大功耗为 1W,能够承受较高的功率负载,适用于中等功率的电路设计。
阻抗(Zzt):20Ω
动态阻抗为 20Ω,表明该器件在稳压状态下具有较低的阻抗,能够提供较为稳定的电压输出。
封装形式:SMA(DO-214AC)
采用 SMA 封装,体积小巧,适合高密度 PCB 布局,同时具有良好的散热性能。
1SMA4746A 稳压二极管广泛应用于以下领域:
| 参数名称 | 参数值 |
|---|---|
| 稳压值(标称值) | 18V |
| 稳压值范围 | 17.1V ~ 18.9V |
| 反向电流(Ir) | 5μA @ 13.7V |
| 功率(Pd) | 1W |
| 阻抗(Zzt) | 20Ω |
| 封装形式 | SMA(DO-214AC) |
| 品牌 | LGE(鲁光) |
1SMA4746A 是一款性能优异的稳压二极管,具有稳定的电压输出、低反向电流和高可靠性等特点,广泛应用于电源管理、通信设备、工业控制等领域。其小巧的封装和良好的散热性能,使其成为高密度 PCB 布局的理想选择。LGE(鲁光)作为知名品牌,确保了产品的高质量和可靠性,是工程师在设计电路时的优选器件。
通过合理的设计和使用,1SMA4746A 能够为各类电子设备提供稳定的电压保护,确保系统的正常运行和长期可靠性。
Request for quote
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.
Related products