WMSIC Electronic Components

MEIHUA MHL324PT03BRT

ModelMHL324PT03BRT
PackageTHT,D=3MM
BrandMEIHUA
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 24+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
MEIHUA MHL324PT03BRT
Type
THT, D=3MM
Minimum package
1000 袋装

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MEIHUA
Electronic Component
MHL324PT03BRT
Electronic Component
1
Package
Through-hole, D=3mm
Electronic Component
Phototransistor
Electronic Component
0.14g
Current
100nA
Electronic Component
1
Electronic Component
BM0228149331
Electronic Component
940nm
Operating Temperature
35℃~+85℃
Transistor Type
NPN
Power Dissipation(Pd)
10mW
Electronic Component
Electronic Component
Electronic Component
1000

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

MHL324PT03BRT 光电晶体管产品概述

一、产品简介

MHL324PT03BRT 是美华(MEIHUA)出品的一款通过孔插件式光电晶体管,封装为直径3mm的透明/半透型立式管壳,响应峰值波长为940nm(典型红外LED配套使用)。器件为NPN型光电晶体管,适用于中低功率光电检测与开关应用,工作温度范围为-35℃至+85℃,便于在多种环境下使用。

二、主要电气参数

  • 集射极击穿电压 Vceo:30V(器件在无光/逆偏条件下允许的最高电压)
  • 集电极电流 Ic:最大 3mA(光照条件下允许的最大集电流)
  • 耗散功率 Pd:10mW(器件最大允许功耗,请注意VCE·Ic须低于此值)
  • 暗电流:100nA(无光时的典型漏电流)
  • 集射极饱和电压 VCE(sat):0.4V @ Ic=2mA(在此光照电流下进入饱和时的电压)
  • 晶体管类型:NPN,插件,D=3mm

注:器件耗散功率较低,使用时需同时满足 VCE·Ic < Pd 与 Ic ≤ 3mA 两项限制,以避免过热或损坏。

三、典型应用场景

  • 反射式或透射式光电开关(与940nm红外发射器配合)
  • 物体检测、计数与位置检测(短距)
  • 线阵、编码盘或光学转速检测(变速传感)
  • 玩具、家电与低功耗移动设备的接近/遮挡检测
  • 简单的光耦或光电隔离(低速、低电流场合)

四、使用与电路建议

  • 常见接法:集电极上拉(到VCC)并取集电极输出(共发射极配置)。若VCC=5V,为保证不超过Pd,推荐上拉电阻按预期最大Ic计算:R = (VCC - VCE(sat)) / Ic_target。例如期望Ic≈2mA时,R ≈ (5V-0.4V)/2mA ≈ 2.3kΩ。
  • 功耗注意:按给定Pd=10mW计算,在VCE约5V时允许Ic最大约2mA(10mW/5V),如需更大光电流,应降低工作电压或加大热散。
  • 抗干扰:在有较强环境光或阳光照射时,建议采用调制发射与带通接收或光学遮蔽、滤光片以提高抗干扰能力。
  • 环境与温度:工作温度范围为-35℃到+85℃,超出请避免长期使用。

五、安装与可靠性提示

  • 插件焊接时避免长时间高温烙铁作用,推荐快速焊接(≤3s)并在接脚附近加热散热片以保护封装。
  • 存储与搬运要防潮、防静电,避免强光直射和机械冲击。
  • 使用前检查光路对准,保证发射器(940nm)与器件视场匹配以获得稳定响应。

总结:MHL324PT03BRT 是一款适合低功耗短距光电检测的3mm插件NPN光电晶体管,特点是对940nm红外光敏感、暗电流低、封装通用。设计电路时应重点考虑最大耗散功率和集电极电流限制,以确保长期可靠运行。

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