Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
DOWO BZT52C51
Configuration
1 options
Configuration
Option 66370
Availability on request
Technical data
Product details
19
specifications
Core information
- Product name
- DOWO BZT52C51
- Type
- DOWO
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- DOWO
- Electronic Component
- BZT52C51
- Electronic Component
- 1
- Package
- SOD-123
- Electronic Component
- Zener Diode
- Electronic Component
- 0.033g
- Electronic Component
- 1
- (Zzk)
- 750Ω
- (Zzt)
- 100Ω
- Electronic Component
- BM0264356183
- Diode
- 1
- Current(Ir)
- 100nA
- Power Dissipation(Pd)
- 500mW
- Electronic Component
- 48.45V~53.55V
- 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.
BZT52C51（DOWO/东沃）产品概述
一、概要
BZT52C51 是一颗单只独立式齐纳二极管，由 DOWO（东沃）出品，采用 SOD-123 小型封装，标称稳压值 51V。器件具有低齐纳击穿阻抗、最大耗散功率 500mW、高稳定性与可靠性，适合用于中低功率电压基准、浪涌限制与电路保护等场合。
二、主要特性
- 标称稳压值（Vz）：51V，实际稳压范围 48.45V ~ 53.55V（典型公差 ±5%）；
- 反向电流（Ir）：100nA（在规定反向偏压下）；
- 最大耗散功率（Pd）：500mW（封装限制，实际使用需考虑热降额）；
- 稳压阻抗：Zzt ≈ 100Ω（动态/测试阻抗），Zzk ≈ 750Ω（拐点/低电流阻抗）；
- 封装：SOD-123，单只器件，便于表面贴装加工。
三、电气参数与实用计算
在不附加散热条件下的最大允许电流可近似由 Pd/Vz 估算：
- Imax ≈ 0.5W / 51V ≈ 9.8mA。
为保证长期可靠性与温升裕量，建议在设计中留有安全余量，通常将工作电流限制在额定最大值的一半或更低（例如 ≤5mA），并配合串联限流电阻或外围稳压电路使用。注意 Zzt 表征在额定测试电流下的动态阻抗，直接影响稳压精度；Zzk 则反映低电流区的“拐点”特性，对微小电流情形下的电压稳定性有影响。
四、典型应用场景
- 51V 参考电压或偏置源（低功耗场合）；
- 输入/电源的过压限制与浪涌吸收；
- 保护较高工作电压的半导体元件和电路节点；
- 小型通信设备、电池管理或工业控制中作为次级稳压元件。
五、封装与热管理建议
SOD-123 为小型表贴封装，热阻相对较大，封装限流与散热能力有限。设计要点：
- 在 PCB 布局中为器件引脚和着陆区预留较大铜箔，以改善散热；
- 必要时限制工作电流并采用外部限流或分流手段；
- 高温环境下严格按制造商热降额曲线降低允许耗散，避免长时间接近 Pd 极限。
六、选型与使用注意事项
- 确认工作电压与稳压点是否满足系统要求，留有公差与温度漂移裕量；
- 注意反向漏电流与电路偏流对系统精度的影响，尤其在高阻输入或高阻抗测量回路中；
- 若需更低噪声或更高功率，应考虑更大封装或专用参考源；
- 采购建议优先选择正规渠道并核对东沃（DOWO）标准型号与数据表以获取完整测试条件与可靠性数据。
总结：BZT52C51 在 SOD-123 封装下提供了 51V 等级的齐纳稳压解决方案，适合空间与功耗受限但需中高电压参考或过压保护的应用。设计时应重点关注热管理与工作电流控制，以充分发挥其低阻抗和高稳定性的优势。
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
