WMSIC Electronic Components

YLPTEC B1205S-2WR2 - Converter B1205S

ModelB1205S-2WR2
PackageThrough-hole
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 B1205S-2WR2
Type
YLPTEC
Minimum package
25 管装

Technical parameters

Electronic Component
Electronic Component
Electronic Component
YLPTEC
Electronic Component
B1205S-2WR2
Electronic Component
1
Electronic Component
7mm
Package
Through-hole
Electronic Component
Isolated Power Supply Module
Electronic Component
3.308g
Electronic Component
19.5mm
Electronic Component
10mm
Electronic Component
1
Electronic Component
BM0265023162
Operating Temperature
40℃~+85℃
Switching Frequency
100kHz
Electronic Component
100mVp-p
Conversion
86%

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

B1205S-2WR2 隔离降压电源模块产品概述

B1205S-2WR2是YLPTEC(易川) 推出的1通道隔离降压型电源模块,专为12V直流系统的电压转换与电气隔离需求设计,具备小体积、宽温工作、短路保护等核心特性,广泛适用于工业控制、通信设备、传感器供电等场景。

一、核心功能与应用定位

该模块采用降压隔离拓扑,将10.8V~13.2V的输入电压转换为稳定的5V直流输出,最大输出电流400mA,额定输出功率2W。其核心价值在于实现输入与输出端的电气隔离(1.5kVrms),同时完成电压降压转换,解决工业现场中常见的地环路干扰、共模噪声问题,保护后端敏感电路(如传感器、单片机)的稳定运行。

二、关键参数深度解析

2.1 输入输出特性

  • 输入电压范围:10.8V~13.2V,精准覆盖12V系统±10%的电压波动(工业电源常见波动范围),无需额外前置稳压电路,兼容性强;
  • 输出电压:稳定5V,最大输出电流400mA,满足多数小型数字电路、传感器的供电需求;
  • 功率匹配:5V×400mA=2W,与额定输出功率一致,在规定工作温度范围内无需降额使用。

2.2 效率与纹波

  • 转换效率:86%(典型值),属于同类2W隔离模块的中等偏上水平,输入12V时输入电流约193mA(2W/(12V×86%)),发热可控,无需额外散热片;
  • 纹波噪声:100mVp-p(典型值),符合数字电路(如5V单片机)的噪声容限要求,若需更低纹波,可并联≤220uF的输出电容(推荐电解+陶瓷组合)。

2.3 隔离与可靠性

  • 隔离电压:1.5kVrms(1分钟),满足GB4943等基本电气隔离标准,有效抑制共模干扰,防止高压端故障影响低压端;
  • 短路保护:输出短路时自动触发保护,故障排除后自恢复,避免模块损坏,提升系统可靠性;
  • 宽温工作:-40℃~+85℃工业级温度范围,适应户外、车间等极端环境。

2.4 动态特性

  • 开关频率:100kHz,频率适中,既避免高频EMI干扰(无需额外EMI滤波),也不会因频率过低导致体积过大;
  • 最大容性负载:220uF,启动时无电压过冲,适合带大电容负载的场景(如多传感器并联供电)。

三、物理规格与封装设计

  • 封装形式:插件式(DIP),适合手工焊接或波峰焊,引脚布局符合标准间距,方便PCB设计;
  • 尺寸参数:19.5mm(长)×7mm(宽)×10mm(高),体积紧凑,仅占用少量PCB空间,适合小型化设备;
  • 轻量化设计:重量约3g,对重量敏感的便携式设备友好。

四、典型应用场景

  1. 工业传感器供电:压力、温度、液位传感器的12V转5V隔离供电,防止现场电磁干扰;
  2. 通信设备辅助电源:小型交换机、无线AP的控制电路、状态指示灯供电;
  3. 单片机系统隔离:工业PLC、单片机I/O口的隔离供电,避免地环路干扰导致的误动作;
  4. 车载电子(12V系统):车载小型控制器(如倒车雷达)的辅助电源(-40~85℃覆盖车载环境);
  5. 小型医疗设备(非侵入式):便携式检测设备(如血糖监测仪辅助电路)的隔离供电(满足基本安全隔离要求)。

五、总结

B1205S-2WR2是一款高性价比的小功率隔离降压模块,针对12V系统优化设计,具备宽输入范围、1.5kV隔离、短路保护、工业级宽温等核心优势,体积紧凑,应用场景广泛。其参数匹配性强,无需额外外围电路即可稳定工作,是工业控制、通信、传感器领域实现电压转换与电气隔离的可靠选择。

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