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DOWO SMB5929B
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- DOWO SMB5929B
- Type
- DOWO
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- DOWO
- Electronic Component
- SMB5929B
- Electronic Component
- 1
- Package
- SMB(DO-214AA)
- Electronic Component
- Zener Diode
- Electronic Component
- 0.208g
- Electronic Component
- 1
- (Zzk)
- 600Ω
- (Zzt)
- 9Ω
- Electronic Component
- BM0264866316
- Diode
- 1
- Current(Ir)
- [email protected]
- Power Dissipation(Pd)
- 3W
- Electronic Component
- 14.25V~15.75V
- Electronic Component
- 65℃~+150℃
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SMB5929B 产品概述
一、产品简介
SMB5929B 为 DOWO（东沃）品牌单个独立式稳压二极管，标称稳压值 15V，封装为 SMB (DO-214AA) 表面贴装形式。器件适用于需要稳定参考电压或过压钳位的小功率场合，结构紧凑，便于自动化贴装与批量生产。
二、主要电气参数
- 稳压值（标称）：15V
- 稳压值范围：14.25V ~ 15.75V（公差 ±5%）
- 反向电流 Ir：1µA @ 11.4V（低漏电流特性）
- 耗散功率 Pd：3W（资料中同时标注“1.5W 15V”，设计时请按实际散热条件确认并考虑热降额）
- 稳态阻抗 Zzt：9Ω（在额定工作电流条件下）
- 击穿阻抗 Zzk：600Ω（在低电流测试点）
- 工作结温范围：-65℃ ~ +150℃
三、热与功率考量
按额定 Pd=3W 计算，器件在良好散热条件下的理论最大稳态电流 Izmax ≈ 3W / 15V = 200mA；若按描述中的 1.5W 保守设计，则 Izmax ≈ 100mA。实际应用中应结合PCB铜箔面积、散热垫及环境温度进行热降额计算，确保结温不超过 +150℃。
四、典型应用场景
- 作为 15V 基准或稳压源（小电流稳压）
- 电源轨过压保护、钳位电路
- 信号调理与波形整形的电压限制
- 工业控制、通信设备和消费类电子中需要 15V 参考的模块
五、封装与可装配性
SMB (DO-214AA) 为常用中功率表面贴装封装，适配常规焊接与回流工艺。建议遵循器件制造商的回流温度曲线与焊膏工艺规范，避免长时高温对器件可靠性影响。
六、选型与使用建议
- 在选择时确认实际功耗与散热条件，必要时留足铜箔和热通道以降低结温。
- 对于需要长期稳定性的参考源，建议在稳压二极管后端加入滤波与温漂补偿电路。
- 注意反向漏电与工作电流对稳压点的影响，低电流工作时稳压特性会偏离标称值（参照 Zzk）。
如需详细的 I–V 曲线、封装尺寸图或可靠性测试数据，可向东沃（DOWO）索取完整数据手册以便最终电路验证与量产确认。
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