Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
CJ MMSZ5227B
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- CJ MMSZ5227B
- Type
- CJ
- Minimum package
- 3000
Technical parameters
- Electronic Component
- CJ
- Electronic Component
- MMSZ5227B
- Electronic Component
- 1
- Package
- SOD-123
- Electronic Component
- Zener Diode
- Electronic Component
- 0.033g
- Electronic Component
- 1
- (Zzk)
- 1.7kΩ
- (Zzt)
- 24Ω
- Electronic Component
- BM0228679553
- Diode
- 1
- Current(Ir)
- 15uA@1V
- Power Dissipation(Pd)
- 350mW
- Electronic Component
- 3.42V~3.78V
- Electronic Component
- 65℃~+150℃
- Electronic Component
- 3000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
MMSZ5227B 产品概述
一、产品简介
MMSZ5227B 为独立式稳压二极管（Zener Diode），标称稳压值 3.6V，适用于低功耗电压基准和浪涌保护场合。该器件由 CJ（江苏长电/长晶）生产，采用 SOD-123 小封装，体积小、易于贴装，适合手持设备、便携仪器及各种消费类电子的局部稳压与参考电路。
二、主要参数
- 稳压值（标称）：3.6 V
- 稳压值范围：3.42 V ～ 3.78 V（用于筛选和容差评估）
- 反向电流 Ir：15 μA @ VR = 1.0 V
- 耗散功率 Pd：350 mW（注意散热条件）
- 阻抗 Zzt：24 Ω（在规定测试电流下的小信号阻抗）
- 阻抗 Zzk：1.7 kΩ（拐点或低电流下的动态阻抗）
- 工作结温范围：-65 ℃ ～ +150 ℃
- 封装：SOD-123（表面贴装）
三、特性与优势
- 小型SOD-123封装，适合高密度贴片板设计；
- 低至350 mW的稳压功耗，适用于小功率稳压与保护；
- 低电压等级（≈3.6V），便于为低电压模拟电路提供参考或钳位；
- 宽温度范围，适应恶劣环境与工业级应用需求；
- 阻抗参数有利于分析噪声与纹波抑制性能。
四、典型应用
- 低电流参考源与基准电压；
- 输入浪涌与反向电压保护（与限流电阻配合）；
- 模拟前端的稳压钳位；
- 便携式设备、传感器模块、电池管理电路中的局部稳压。
五、封装与热管理
SOD-123 封装体积小，但限于 Pd = 350 mW 的耗散能力，需要注意PCB散热设计与焊盘面积。长时间工作在接近最大耗散条件下，应保证器件结温不超过规格上限（+150 ℃）。在布局时建议增加铜箔散热面积，避免在高温环境中连续大电流工作。
六、选型与使用建议
- 工作点选择：稳压二极管通常需串联限流电阻以控制通过电流 Iz，使其在测试/工作电流范围内以获得稳定的稳压值；
- 考虑反向漏流 Ir 在低电压应用（尤其微安级电流）对精度的影响；
- 如果电路存在较大纹波或更高功率需求，应选用功率更高或封装更大的型号；
- 在高温工况下，注意稳压漂移与功率降额。
七、典型电路与注意事项
典型应用为限流电阻串联到稳压二极管的反向（稳压）端，用以在负载变化时保持稳定电压。设计时应计算最大通过电流、限流电阻额定功率与器件耗散，避免超出 Pd。焊接时遵循CJ封装的回流曲线，防止过热损伤器件。
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.
1 Piece Integrated Circuit for IRS20124S IRS21956S SOP-20 IRS2453DS SOP-14
- Model
- IRS20124S
- Package
