WMSIC Electronic Components

ISOCOM 4N35SM

Model4N35SM
PackageSMD-6P
BrandISOCOM
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 22+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
ISOCOM 4N35SM
Type
ISOCOM
Minimum package
65

Technical parameters

Electronic Component
ISOCOM
Electronic Component
4N35SM
Electronic Component
1
Package
SMD-6P
Electronic Component
Transistor Output Optocoupler
Electronic Component
0.712g
Electronic Component
1
Electronic Component
2us
Electronic Component
BM0264888219
Operating Temperature
55℃~+100℃
Load Voltage
30V
Type
DC
Output Current
50mA
Output Type
Photoelectric Transistor
Output Channel Count
1
(tr)
2us

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

ISOCOM 4N35SM 晶体管输出光耦产品概述

一、产品基本定位与核心特性

ISOCOM 4N35SM是英国安数光(ISOCOM)推出的表面贴装式晶体管输出光耦,核心采用光电三极管结构,专为需要电隔离、高速信号传输的场景设计。产品兼具高隔离安全、宽温适应性及高效转换能力,可满足工业控制、通信设备等多领域的隔离需求,是电路设计中实现电位隔离与信号传输的经典选型。

二、关键性能参数深度解析

1. 电隔离安全性能

  • 交流隔离电压(Vrms)达5.3kV:属于高等级隔离能力,可有效隔离不同电位的电路(如高压侧与低压侧),避免共地干扰及电气安全隐患,适配对隔离要求严格的场景(如医疗设备、工业高压控制);
  • 直流反向耐压(Vr)为6V:反向电压耐受能力满足常规应用,防止反向电流击穿损坏。

2. 光-电转换效率

  • 正向压降(Vf)1.2V:符合常规发光二极管(LED)压降范围,驱动电路设计简单(无需复杂升压/降压);
  • 电流传输比(CTR)最小值100%:输入电流(If)与输出电流(Ic)比例至少1:1,转换效率优异,无需额外放大电路即可驱动中小功率负载;
  • 最大正向电流(If)60mA:允许一定驱动裕量,避免过流损坏输入端LED。

3. 高速开关特性

  • 上升时间(tr)/下降时间(tf)均为2μs:属于高速光耦范畴,可快速响应数字信号或脉冲信号,适配PLC快速输入输出、通信信号传输等实时控制场景。

4. 负载与饱和特性

  • 最大负载电压30V:覆盖多数低压控制场景(如24V工业系统);
  • 集射极饱和电压(VCE(sat))300mV(0.5mA/10mA输出电流下):饱和压降极低,可减少负载端功耗,降低信号失真,提升信号传输质量。

5. 宽温环境适应性

  • 工作温度范围-55℃~+100℃:覆盖工业级宽温要求,可在极端环境(如高温车间、低温户外)下稳定工作,可靠性经得住严苛场景考验。

三、封装与典型应用领域

1. 封装形式

产品采用SMD-6P(表面贴装6引脚) 封装,体积紧凑,适合自动化贴装生产,可节省PCB空间,满足高密度电路设计需求(如小型化通信模块、微型工业控制器)。

2. 典型应用场景

  • 工业控制:PLC数字量输入输出隔离、传感器(温度/压力)与控制器的信号隔离;
  • 通信设备:调制解调器、交换机的信号隔离,避免共地干扰导致的信号失真;
  • 电源模块:开关电源反馈回路隔离(如AC-DC电源输出电压反馈),隔离高压侧与低压侧;
  • 医疗设备:患者监护仪、诊断设备的信号传输隔离,保障电气安全(符合医疗设备隔离规范);
  • 汽车电子:部分工业级汽车场景的信号隔离(如车载控制器与执行器的电位隔离)。

四、产品优势与应用注意事项

1. 核心优势

  • 高隔离安全:5.3kV交流隔离电压,有效防护电气干扰与安全风险;
  • 高速响应:2μs开关时间,适配快速数字信号传输;
  • 宽温可靠:-55~100℃工作范围,极端环境适应性强;
  • 高效转换:CTR≥100%,驱动简单,无需额外放大;
  • 低功耗失真:300mV饱和压降,减少负载功耗与信号失真。

2. 应用注意事项

  • 正向电流(If)不得超过60mA,避免输入端LED过流损坏;
  • 反向电压(Vr)不得超过6V,防止反向击穿;
  • 输出电流(Ic)最大50mA,负载电流需控制在该范围内;
  • 工作温度需保持在-55~100℃区间,超出可能影响性能或寿命。

五、总结

ISOCOM 4N35SM作为一款高性价比的晶体管输出光耦,凭借高隔离电压、高速开关、宽温适应性及高效转换等特性,可广泛应用于工业控制、通信、电源等领域,是实现电路电隔离与信号传输的可靠选择,能有效提升系统的抗干扰能力与电气安全性。

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