Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
Jingdao Microelectronics 1SMA4733A
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Electronic 1SMA4733A
- Type
- Jingdao Microelectronics
- Minimum package
- 5000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic
- Electronic Component
- 1SMA4733A
- Electronic Component
- 1
- Package
- SMA
- Electronic Component
- Zener Diode
- Electronic Component
- 0.12g
- Electronic Component
- 1
- (Zzt)
- 7Ω
- Electronic Component
- BM0222289289
- Diode
- 1
- Current(Ir)
- 10uA@1V
- Power Dissipation(Pd)
- 1W
- Electronic Component
- 4.84V~5.36V
- Electronic Component
- 55℃~+150℃
- Electronic Component
- Electronic Component
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
产品概述：SMA4733A 稳压二极管
一、产品简介
SMA4733A 是一款由晶导微电子公司生产的高性能稳压二极管，广泛应用于电压稳定和过电压保护。其额定稳压值为 5.1V，工作电压范围在 4.84V 至 5.36V 之间，同时在 1V 电压下，其反向漏电流低至 10µA。该二极管采用 SMA 封装，具有良好的热管理和电气性能，适合于高密度电路板使用。
二、主要特性
- 稳压特性：SMA4733A 的额定稳压值为 5.1V，适用于需要稳定电压输出的场合。其工作电压范围可满足多种应用需求。
- 低反向漏电流：在 1V 的反向电压下，反向漏电流仅为 10µA，这使得它在低功耗电路中应用时，能够有效降低能量损耗。
- 封装设计：采用 SMA 封装，具有较小的体积和重量，非常适合贴片焊接和自动化生产，适应现代电子设备对空间和成本的双重要求。
- 耐高温特性：SMA4733A 具备较强的热稳定性，能够在高温环境下正常工作，保证电路的安全运行。
三、应用场景
SMA4733A 稳压二极管广泛应用于以下场景：
- 电源保护：在电源设计中，SMA4733A 可用于对称电源轨之间的电压限制，确保电路元件不因电源电压过高而损坏。
- 信号电路：针对一些对电压稳定性要求较高的信号处理电路（如放大器和滤波器）提供稳定的工作电压，确保信号质量。
- 电子产品的过压保护：移动设备、家电、消费电子等产品中，SMA4733A 可用作电压钳位，保护下游电路不受高电压冲击影响。
- 电池充电电路：在电池管理系统中，SMA4733A 可以防止电池过充电，有效延长电池使用寿命。
四、技术规格
- 额定稳压值：5.1V
- 工作电压范围：4.84V ~ 5.36V
- 反向漏电流：10µA @ 1V
- 封装类型：SMA
- 工作温度范围：通常在 -55°C 至 +150°C
五、使用建议
在实际应用中，设计师在选用 SMA4733A 稳压二极管时应注意以下几点：
- 合理选择工作电压范围：确保在电路工作时，所施加的电压应在其额定范围内，以避免二极管损坏。
- 考虑散热设计：尽管 SMA4733A 具备良好的耐高温能力，但在高功率应用中，仍需考虑散热设计，以维持其性能稳定。
- 反向电压保护：需要注意其反向电压的极限，确保在电路中没有意外情况使其超过工作电压范围。
六、总结
SMA4733A 稳压二极管是保证电路稳定性与安全性的重要组件，凭借其优越的性能特性和广泛的应用领域，成为设计人员在电源管理和保护电路中不可或缺的选择。选择合适的稳压二极管，不仅可以提升电路的可靠性，还可以有效延长系统的整体寿命。
Request for quote
Send RFQ
Use the form for single models, category sourcing, and multi-line BOM requirements.
Product sourcing intelligence
Model, package, availability, and BOM fit reviewed before quotation.
WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.
BOM matching & alternatives
BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.
Sourcing availability signal
Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.
Buyer sourcing scenarios
Examples of how common component sourcing requests are organized.
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
Packaged components ready for RFQ.
