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YLPTEC R-78E3.3-0.5
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- YLPTEC R-78E3.3-0.5
- Type
- YLPTEC
- Minimum package
- 44 管装
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- YLPTEC
- Electronic Component
- R-78E3.3-0.5
- Electronic Component
- 1
- Electronic Component
- 7.55mm
- Package
- SIP-3P
- Electronic Component
- DC-DC Power Supply Module
- Electronic Component
- 2.151g
- Electronic Component
- 11.5mm
- Electronic Component
- 10.2mm
- Electronic Component
- 1
- Type
- Electronic Component
- Electronic Component
- BM0265023146
- Operating Temperature
- 40℃~+85℃
- Switching Frequency
- 850kHz
- Electronic Component
- 20mVp-p
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
YLPTEC R-78E3.3-0.5 隔离降压型电源模块产品概述
YLPTEC（易川）推出的R-78E3.3-0.5是一款SIP-3P封装的隔离降压型电源模块，针对中小功率、空间受限的电子系统设计，具备宽输入电压范围、高转换效率、低静态电流等核心优势，广泛适配工业控制、物联网终端、嵌入式设备等场景。以下从多维度详细介绍该产品：
一、核心功能与应用场景
R-78E3.3-0.5为单通道隔离降压模块，核心功能是将宽范围直流输入电压转换为稳定的3.3V直流输出，最大负载电流500mA，满足中小功率数字电路、传感器等负载的供电需求。
其典型应用场景包括：
- 工业现场设备：如温度/压力传感器、小型PLC扩展模块，适配12V/24V工业标准电源；
- 嵌入式与物联网终端：如STM32核心板、低功耗WiFi网关，兼容5V~24V外接电源或电池供电；
- 小型消费电子：如微型安防摄像头、智能电表模块，解决输入电压波动下的稳定供电问题。
二、关键电气参数详解
该模块的电气性能参数平衡了稳定性与实用性，核心参数及优势如下：
参数项 规格值 实际价值 输入电压范围（Vin） 4.75V~36V DC 覆盖5V/12V/24V/36V常见电源，无需额外适配 输出电压（Vout） 3.3V DC（固定） 精度±3%，满足数字芯片（如MCU）供电要求 最大输出电流（Iout） 500mA 支撑多数中小功率负载（无线模块、传感器等） 转换效率 86% 减少发热与电源损耗，适合长时间运行场景 静态电流（Iq） 200uA 待机耗电极低，适配电池供电的低功耗设备 纹波噪声 20mVp-p 抑制输出波动，保护敏感模拟/数字电路 最大容性负载 680uF 兼容大容量后级滤波电容，优化输出稳定性三、物理封装与环境适应性
R-78E3.3-0.5采用SIP-3P（单列直插3引脚） 封装，尺寸仅为11.5mm（长）×7.55mm（宽）×10.2mm（高），体积小巧，可直接焊接于PCB板，无需额外散热片，适配空间紧张的紧凑型设计。
环境适应性方面：
- 工作温度范围：-40℃~+85℃，可稳定运行于户外低温、工业高温场景；
- 无特殊散热要求，满足多数常规应用的温度需求。
四、保护特性与可靠性
该模块内置短路保护功能，当输出端发生短路时，模块自动进入限流或关断状态，避免模块损坏及负载故障扩散，提升系统可靠性。
此外：
- 低静态电流（200uA）确保长期待机时仅消耗微量电能，适合电池供电设备；
- 输出电压精度稳定，减少后级电路的稳压补偿需求，简化系统设计。
五、典型应用设计注意事项
实际应用中需注意以下细节，保障性能稳定：
- 输入电源需满足4.75V~36V范围，建议并联10uF以上电解电容滤波；
- 输出端可并联0.1uF~10uF陶瓷电容，进一步抑制纹波；
- 短路保护触发后，需断开负载并重启电源即可恢复；
- 工作温度超过85℃时，可贴小型散热片辅助散热。
总结
YLPTEC R-78E3.3-0.5隔离降压模块凭借宽输入范围、小体积、高可靠性等特点，成为工业、物联网、嵌入式领域中小功率供电的实用选择。其平衡了性能与成本，适合对空间和功耗敏感的降压应用场景。
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