WMSIC Electronic Components

ON 1N914TR

Model1N914TR
PackageDO-35
BrandON
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
ON 1N914TR
Type
ON
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ON
Electronic Component
1N914TR
Electronic Component
1
Package
DO-35
Electronic Component
General Purpose Diode
Electronic Component
0.12g
Electronic Component
1
Electronic Component
BM0001776076
Current
200mA
Diode
1
Current(Ir)
5uA@75V
(Vf)
1V@10mA
Electronic Component
55℃~+175℃
Electronic Component
Electronic Component
Electronic Component
10000

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

ON安森美1N914TR通用快速开关二极管产品概述

一、产品核心定位与基本属性

1N914TR是ON安森美推出的通用型快速开关二极管,属于小信号二极管范畴,采用DO-35轴向金属封装,兼顾电气性能与可靠性,广泛适配工业控制、通信设备、消费电子等多领域的低功率整流、高速开关及信号保护需求。该型号延续1N914系列的经典设计,参数稳定、工艺成熟,是替代传统小信号二极管的高性价比选型。

二、关键电气参数深度解析

1. 正向导通特性

  • 正向压降(Vf):1V(典型值,10mA正向电流下),此参数表明器件在小信号工作场景下导通损耗极低,适合低功耗电路设计;当连续正向电流达到额定值200mA时,Vf仍维持在1.2V左右(经验值,符合硅二极管特性),满足中等负载下的整流需求。
  • 连续正向电流(If):200mA(额定值,25℃环境),可稳定支持低功率电源的整流输出(如5V/1A以下辅助电源)。

2. 反向阻断特性

  • 直流反向耐压(Vr):100V(额定值),确保器件在反向偏置下可承受100V以内电压而不击穿,适配中等电压等级的电路保护。
  • 反向漏电流(Ir):5μA(典型值,75V反向电压、25℃环境),漏电流远低于行业同类器件,反向阻断性能优异,能有效减少反向功耗并提升电路稳定性。

3. 浪涌与温度适应性

  • 非重复峰值浪涌电流(Ifsm):4A(测试条件:8.3ms正弦半波脉冲),可承受瞬时过流冲击(如电源上电瞬间的浪涌),提升电路抗干扰能力(需注意:此为单次脉冲,不可重复施加)。
  • 工作结温范围:-55℃~+175℃,覆盖宽温度区间,即使在极端环境(如工业高温柜、低温户外设备)下,仍能保持参数稳定,满足严苛可靠性要求。

三、DO-35封装与可靠性设计

1N914TR采用DO-35轴向金属封装,具有三大核心优势:

  1. 气密性防护:金属-玻璃结构隔绝湿度、灰尘及腐蚀性气体,避免器件内部特性退化,延长使用寿命;
  2. 安装兼容性:轴向引线适配传统通孔焊接工艺,无需特殊夹具,便于PCB布局;
  3. 尺寸紧凑:封装直径约1.5mm、长度约4.5mm,适合高密度电路设计(如小型化传感器模块)。

此外,ON安森美采用成熟的硅外延工艺,确保批次间参数一致性(正向压降波动≤0.1V),符合工业级器件的可靠性标准。

四、典型应用场景

1. 低功率电源整流

适用于单片机系统、传感器模块的辅助电源整流(如5V/0.5A电源),200mA连续电流满足小负载需求,100V耐压保障电源安全。

2. 高速开关电路

作为快速开关二极管,其反向恢复时间(trr)约4ns(典型值),可用于:

  • 脉冲信号整形(如数字电路的方波转换);
  • 射频前端的开关控制(如低功耗蓝牙模块的信号切换);
  • 逻辑电路的电平钳位(如TTL/CMOS电路的过压保护)。

3. 信号过压保护

并联于RS485总线、模拟传感器输出端,利用100V反向耐压钳位过压脉冲(如静电放电、电源浪涌),保护后端敏感电路。

4. 温度补偿电路

宽温范围下参数稳定,可用于精密放大器的偏置电路,抵消温度变化对电路精度的影响。

五、选型优势与注意事项

1. 核心优势

  • 宽温可靠性:-55175℃结温范围,优于普通商用器件(070℃),适配工业、航空航天辅助电路;
  • 低损耗设计:低正向压降+低反向漏电流,减少电路总功耗,适合电池供电设备;
  • 品牌保障:ON安森美全球供应链稳定,产品质量可追溯,供货周期可控;
  • 封装兼容:与传统1N914系列完全兼容,便于产品升级与替换。

2. 应用注意事项

  • 浪涌限制:Ifsm=4A为单次8.3ms脉冲,不可重复施加,需避免长时间过流;
  • 结温控制:高负载下(如200mA连续工作)需增加PCB铜箔面积散热,避免结温超过175℃;
  • 反向电压余量:实际应用中反向电压需低于100V额定值(建议留20%余量),避免击穿风险。

1N914TR凭借均衡的电气性能、宽温适应性及成熟封装,成为小信号二极管领域的经典选型,广泛应用于工业控制、通信设备、消费电子等多个领域。

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