WMSIC Electronic Components

YLPTEC RSM3485PCHT

ModelRSM3485PCHT
PackageDIP-9
BrandYLPTEC
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
YLPTEC RSM3485PCHT
Type
YLPTEC
Minimum package
30 管装

Technical parameters

Electronic Component
Electronic Component
Electronic Component
YLPTEC
Electronic Component
RSM3485PCHT
Electronic Component
1
Package
DIP-9
Electronic Component
Other Module
Electronic Component
5.434g
Electronic Component
64
Electronic Component
1
Features
Signal Isolated; Power Supply Isolated
Electronic Component
BM0265023128
Operating Temperature
40℃~+85℃
Operating Voltage
3.15V~3.45V
Data
115.2Kbps
Electronic Component
Electronic Component
Static Current(Iq)
33mA

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

RSM3485PCHT 隔离型RS485收发器产品概述

一、产品定位与核心价值

RSM3485PCHT是YLPTEC(易川)推出的工业级隔离型RS485收发器,专为需要抗干扰、宽温稳定通信的场景设计。核心价值围绕「可靠通信+工业适配」展开:通过2500Vrms电气隔离阻断系统干扰,支持64节点组网,适配-40℃~+85℃工业温宽,是工业自动化、楼宇自控等场景的实用通信组件。

二、关键性能参数解析

2.1 通信性能

  • 数据速率:115.2Kbps,为RS485通信常用速率,满足大多数工业数据(如传感器采集、PLC指令)的传输需求,无需额外速率适配;
  • 节点数:最大支持64个节点,符合RS485总线的标准组网容量,可实现数十个传感器、控制器的集中联网。

2.2 电源与功耗

  • 工作电压:3.15V~3.45V,精准适配3.3V主流工业系统电源(常见于PLC、嵌入式设备),无需电压转换;
  • 静态电流:33mA,在隔离收发器中属于功耗可控范围,不会过度增加系统电源负载,适合电池供电或低功耗需求的设备。

2.3 隔离与防护

  • 隔离电压:2500Vrms(有效值),满足工业现场抗电气干扰的核心需求——可阻断不同电位设备(如地面与高空设备)间的共模干扰,避免通信误码或设备损坏;
  • 静电保护:内置静电防护电路,可抵御工业现场常见的ESD(静电放电)冲击,提升设备抗静电能力。

2.4 环境适应性

  • 工作温度:-40℃~+85℃,覆盖工业级温度范围,可稳定工作于户外、车间等极端环境(如冬季低温、夏季高温车间)。

2.5 功能特性

  • 自动流控:不支持自动流控,适合无需动态速率调整的固定通信场景(如传感器周期性数据上报、PLC固定指令传输),简化通信协议设计。

三、电气可靠性设计亮点

  1. 隔离设计:采用磁耦/光电隔离技术(结合YLPTEC成熟方案),2500Vrms隔离电压符合IEC 61010等工业标准,可有效隔离高电压干扰;
  2. 抗干扰能力:除隔离外,内置共模抑制电路,降低总线信号中的共模噪声,提升通信稳定性;
  3. 宽电压适配:3.15V~3.45V的电压范围,覆盖3.3V电源的波动(如系统负载变化导致的电压小幅度波动),避免因电压异常中断通信。

四、典型应用场景

RSM3485PCHT的工业级特性使其适配多类场景:

  • 工业自动化:PLC与远程I/O模块、温度/压力传感器的通信组网;
  • 楼宇自控:BMS系统中空调、照明、安防设备的集中控制;
  • 智能电网:电表数据采集、配电终端通信;
  • 安防监控:多摄像头的RS485总线联网(如门禁、监控摄像头控制);
  • 轨道交通:车载设备间的低速数据传输(适配宽温与抗干扰需求)。

五、封装与使用注意事项

  • 封装形式:DIP-9插装式封装,便于手工焊接或批量生产中的插件工艺,适合原型开发与量产;
  • 使用注意:
    1. 电源引脚需注意极性,避免反接损坏器件;
    2. 隔离端与非隔离端布线需分开,避免干扰耦合;
    3. 总线节点数不超过64,避免信号衰减或通信不稳定;
    4. 无需自动流控,通信协议需采用固定速率或手动流控方式。

六、总结

RSM3485PCHT作为YLPTEC的工业级隔离RS485收发器,以「2500V隔离、工业温宽、64节点组网」为核心竞争力,精准适配3.3V系统,功耗可控,是工业通信场景中替代非隔离收发器、提升抗干扰能力的优选组件。其DIP-9封装的易用性,也使其在原型开发与量产中均具备实用性。

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