WMSIC Electronic Components

BORN 1SMB5925B

Model1SMB5925B
PackageSMB(DO-214AA)
BrandBORN
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
BORN 1SMB5925B
Type
BORN
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
BORN
Electronic Component
1SMB5925B
Electronic Component
1
Package
SMB(DO-214AA)
Electronic Component
Zener Diode
Electronic Component
0.18g
Electronic Component
1
(Zzk)
500Ω
(Zzt)
4.5Ω
Electronic Component
BM0264897300
Diode
1
Current(Ir)
5uA
Power Dissipation(Pd)
3W
Electronic Component
9.5V~10.5V
Electronic Component
55℃~+150℃

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

1SMB5925B稳压二极管产品概述

1SMB5925B是伯恩半导体(BORN)推出的SMB封装(DO-214AA)中低压稳压二极管,核心定位为中小功率电路的稳压、基准电压或过压保护元件,凭借宽温度范围、低动态阻抗、高可靠性等特性,适用于工业控制、通信设备、车载电子等多场景。

一、核心身份与基本定位

1SMB5925B属于硅基稳压二极管,采用贴片式SMB封装,体积紧凑(符合DO-214AA标准),便于自动化贴装。其稳压值覆盖9.5V~10.5V区间,属于中低压稳压范畴,主要面向需要稳定10V左右电压的中小功率电路设计——既替代传统插件稳压管的体积冗余,又兼顾了散热效率与贴装兼容性。

二、关键电性能参数详解

产品电性能参数经过伯恩半导体严格测试,核心参数的工程意义明确:

  • 反向漏电流(Ir):5μA(典型值):反向偏置时漏电流极低,静态功耗可忽略,适合对静态电流敏感的低功耗设备(如便携式电子、电池供电电路);
  • 稳压值范围(Vz):9.5V~10.5V:偏差控制在±5%以内,满足多数电路对稳压精度的基础需求,无需额外校准;
  • 耗散功率(Pd):3W:最大允许功耗3W,结合SMB封装的散热能力,可支撑中等负载电流(如稳压时输出电流约300mA@10V);
  • 动态阻抗(Zzt):4.5Ω:测试电流下的动态阻抗低,当负载电流波动时,输出电压变化极小,稳压精度更稳定;
  • 反向击穿前阻抗(Zzk):500Ω:低电流下仍保持较高阻抗,避免小负载时电压漂移,适合作为基准电压源使用;
  • 工作结温范围:-55℃~+150℃:覆盖工业级温度要求,可在极端高低温环境下稳定工作(如车载发动机舱、户外通信基站)。

三、封装与热特性

1SMB5925B采用SMB贴片封装(DO-214AA),优势在于:

  • 体积小型化:尺寸仅约3.5mm×2.5mm×1.5mm,比插件封装节省50%以上PCB面积,适合高密度电路设计;
  • 散热效率:SMB封装的引脚与PCB铜箔接触面积较大,配合适当的铜箔铺地(建议≥1cm²),可有效散发热量,满足3W最大功耗需求;
  • 贴装兼容性:符合SMT自动化生产要求,可通过回流焊、波峰焊工艺批量生产,降低组装成本。

四、典型应用场景

基于参数特性,1SMB5925B的核心应用场景包括:

  1. 电源电路稳压:线性电源的输出稳压(如5V转10V辅助电源)、开关电源的反馈基准;
  2. 过压保护:电子设备的输入端口过压钳位(如USB接口、通信接口),防止浪涌电压损坏后级电路;
  3. 基准电压源:工业传感器、MCU外围电路的10V基准参考,替代精度较低的电阻分压;
  4. 车载电子:车载中控、传感器模块的稳压(符合-40℃~+125℃车载温度要求);
  5. 通信设备:基站、路由器的辅助电源稳压,适应户外宽温环境。

五、可靠性与环境适应性

伯恩半导体对1SMB5925B的可靠性管控严格:

  • 宽温稳定性:-55℃+150℃结温范围,通过高低温循环测试(-55℃+150℃,循环1000次),性能无明显衰减;
  • 低漏流可靠性:反向漏电流5μA,经老化测试后仍保持稳定,避免长期使用中漏电流增大导致功耗上升;
  • 环保合规:符合RoHS、REACH等环保标准,无铅封装,适配绿色制造需求。

六、品牌与选型价值

选择伯恩半导体1SMB5925B的核心价值:

  • 品牌可靠性:伯恩半导体是国内专业的功率半导体厂商,产品通过ISO9001、IATF16949等认证,品质稳定;
  • 参数匹配性:9.5V~10.5V稳压范围、3W功耗、SMB封装,精准匹配中小功率稳压需求,无需额外降额;
  • 性价比优势:相比进口品牌同规格产品,价格更具竞争力,适合批量生产降本;
  • 供应稳定性:伯恩拥有成熟的产能布局,可满足长期稳定供货需求。

总结:1SMB5925B是一款兼顾小型化、宽温、高稳压精度的SMB封装稳压二极管,适合对体积、环境适应性有要求的中小功率电路设计,是工业控制、车载、通信等领域的可靠选型。

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