WMSIC Electronic Components

ROHM RB532HS-30T15R RB532HS

ModelRB532HS-30T15R
PackageDSN0603-2
BrandROHM
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
ROHM RB532HS-30T15R
Type
ROHM
Minimum package
15000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ROHM
Electronic Component
RB532HS-30T15R
Electronic Component
1
Package
DSN0603-2
Electronic Component
Schottky Diode
Electronic Component
0.03g
Electronic Component
1
Electronic Component
BM0263473713
Current
200mA
Diode
1
Current(Ir)
100uA@30V
(Vf)
500mV@100mA
Electronic Component
Electronic Component
Electronic Component
15000
Voltage Rating(Vr)
30V

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

RB532HS-30T15R 产品概述

一、概述

RB532HS-30T15R 是 ROHM(罗姆)推出的一款小封装肖特基二极管,封装型号为 DSN0603-2,属于独立式单个器件。它面向小尺寸、低损耗、快速开关的整流与保护场合,具有较低的正向压降与较小的反向漏电流,适合便携式与高频开关电路的低电流整流和保护用途。

主要基础参数(典型/额定)

  • 二极管配置:1 个独立式
  • 正向压降:Vf = 0.5 V @ If = 100 mA
  • 直流反向耐压:VR = 30 V
  • 正向整流电流(额定):If(AV) ≈ 200 mA
  • 反向电流:Ir = 100 μA @ VR = 30 V
  • 非重复峰值浪涌电流:Ifsm = 1.5 A(单次、非重复)
  • 封装:DSN0603-2(超小 SMD)

二、主要特性及优势

  • 低正向压降:Vf≈0.5 V(100 mA)显著降低导通损耗,适合低压轨与电源二次整流,能减少功耗与发热。
  • 肖特基结构:开关速度快、无恢复时间,利于高频开关电源与脉冲应用中降低开关损耗与尖峰。
  • 小封装:DSN0603-2 体积小,适用于空间受限的移动设备与高密度 PCB 布局。
  • 合理的整流电流与浪涌能力:200 mA 的平均整流电流覆盖多数小电流负载,1.5 A 的非重复浪涌能力可承受短时间启动或冲击电流。
  • 低反向漏电:在常用电压下漏电较小,但需注意随温度上升漏电会增加。

三、典型应用场景

  • 低电流开关电源的输入/输出整流与续流(二次侧、辅助电源)
  • 电源反向保护(单向导通,防止反接损坏)
  • 电源 OR-ing(多电源自动切换)
  • 便携式产品:移动电源、手持设备、可穿戴设备等需低 Vf 的场合
  • 高速信号钳位与保护电路(用于抑制反向电压或尖峰)

四、功耗与热设计注意事项

  • 常用工况下的导通损耗可估算:P = Vf × If。以 100 mA 串联导通为例,P ≈ 0.5 V × 0.1 A = 0.05 W(50 mW),器件发热较小。
  • 反向漏电产生的损耗在满电压时为 P = VR × Ir = 30 V × 100 μA = 3 mW;在温度升高时漏电会增加,应在高温工况下评估热预算。
  • 封装体积小,长期大电流或连续高温环境会影响可靠性,建议对 If(AV) 做适当降额并留有热余量。
  • 非重复峰值浪涌(1.5 A)仅适用于短时脉冲;若电路存在频繁浪涌或长脉冲,应选用更大浪涌能力或并联/更换器件。

五、封装与 PCB 布局建议

  • DSN0603-2 为超小型 SMD,焊盘和走线应尽量短且宽,以降低电阻及改善散热。
  • 对于需要更好散热的场合,在器件底部和相邻铜区增加铜箔面积或在多层板上使用过孔导热,帮助将热量导出。
  • 焊盘阻焊开窗、丝印极性标识要清楚,避免装配反向。
  • 遵循 ROHM 的回流焊温度曲线及焊接建议,避免高温多次回流造成性能劣化。

六、可靠性与选型参考

  • 在选型时应结合工作环境温度与长期平均电流评估器件是否需要降额使用;肖特基二极管的反向漏电随温度上升较快,如在高温环境或高阻抗回路中使用需特别注意。
  • 若电路有较大反向电压裕度需求(>30 V)或需要更高的平均电流/浪涌能力,应选择更高 Vr 或更大封装的型号。
  • 对于对正向压降极度敏感的设计,可比较同系列中 Vf 更低或 If(AV) 更高的替代型号。

七、使用提示与典型电路参考

  • 反向保护:将 RB532HS-30T15R 串联在电源输入线上,正向压降低可减少电压损失,注意器件的 If(AV) 是否满足最大工作电流。
  • OR-ing:两路电源并联时在各路放置肖特基以实现自动切换,低 Vf 有利于提高供电优先级。
  • 续流/钳位:作小电流续流或钳位二极管时,确认 Ifsm 能承受预期的瞬态电流。
  • 在高温或高阻抗测量回路中,若反向漏电影响测量精度,应考虑增加隔离或采用低漏型器件。

总结:RB532HS-30T15R 在小封装下提供了优秀的低 Vf 与快速特性,适合便携设备与高频小电流整流与保护用途。在实际应用中应重视热管理与漏电随温升的影响,根据工作电流与环境温度做合理降额以保证长期可靠性。若需更高电流或更高耐压,请选择更大封装或额定更高的器件。

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