WMSIC Electronic Components

Xinglight XL-DA2181SRBC

ModelXL-DA2181SRBC
PackageDIP,10x7.4mm
BrandXINGLIGHT
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
Xinglight XL-DA2181SRBC
Type
XINGLIGHT
Minimum package
754 盒

Technical parameters

Electronic Component
Electronic Component
Electronic Component
XINGLIGHT
Electronic Component
XL-DA2181SRBC
Electronic Component
1
Package
DIP,10x7.4mm
Electronic Component
LED
Electronic Component
0.599g
LED
Electronic Component
Electronic Component
1
LED
20mcd
LED
Electronic Component
Electronic Component
BM0259344714
Operating Temperature
30℃~+70℃
Display Type
7
Electronic Component
2V
Electronic Component
1 positions

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

XL-DA2181SRBC 产品概述

一. 产品简介

XL-DA2181SRBC 是成兴光(Xinglight)出品的一位 7 段 LED 数码管,字符尺寸为 0.28 英寸(约 7.11 mm),发光颜色为红色,采用共阴(公共阴极)极性封装。该器件以小巧尺寸、良好可读性和易于驱动为特点,适合各类小型显示及指示场合,如便携设备、仪器仪表、家用电器面板与开发板原型等。

二. 主要规格

  • 位数:1 位(单字符)
  • 字符尺寸:0.28 英寸(约 7.11 mm)
  • 显示类型:7 段显示
  • LED 极性:共阴(公共阴极)
  • 发光颜色:红色
  • 发光强度(亮度):典型 20 mcd
  • 正向压降 Vf:约 2.0 V(单段)
  • 功率耗散 Pd:36 mW(单段最大)
  • 工作温度范围:-30 ℃ ~ +70 ℃
  • 封装形式:DIP,外壳尺寸 10 × 7.4 mm
  • 品牌:Xinglight(成兴光)

三. 典型特性与优势

  • 小巧且易于阅读:0.28″ 字符尺寸满足空间受限场合下的数字显示需求,红光对比度高,夜间与较暗环境下辨识度良好。
  • 共阴设计便于驱动:公共阴极便于将阴极接地,通过对单独段的阳极施加电压(或通过限流电阻)控制发光,适合与单片机、译码器及多路驱动器配合使用。
  • 低功耗与可靠性:单段正向压降约 2 V、功耗受控,适合电池供电或低功耗系统。稳定的工作温度范围保证在多数工业级和民用场合可靠运行。
  • 通过孔 DIP 封装:便于手工焊接、插拔和原型开发,适合快速验证与小批量生产。

四. 驱动与电气建议

  • 串联限流电阻:为保护 LED 段并控制亮度,应在每段阳极或共阳驱动线上串联限流电阻。计算公式:R = (Vsup - Vf) / If。
    • 示例:若 Vsup = 5 V,目标 If = 5 mA,则 R ≈ (5 - 2) / 0.005 = 600 Ω。若 If = 10 mA,则 R ≈ 300 Ω。
  • 最大允许电流:由 Pd 与 Vf 决定,理论 If_max = Pd / Vf ≈ 36 mW / 2 V = 18 mA;为保证长期可靠性,建议连续工作电流取 10–15 mA 以下并留有安全裕量。
  • 多位/多管复用:在复用驱动方案中,请注意占空比对平均功耗的影响,避免单段瞬时热应力或超限功耗。

五. 封装与机械信息

  • 封装类型:DIP(通过孔)便于焊接与固定,适合印制板安装或面包板实验。
  • 外形尺寸:整体封装约 10 × 7.4 mm,字符高度 0.28″(约 7.11 mm)。实际 PCB 布局请参考厂家提供的机械图纸与引脚排布以确保可靠安装。

六. 适用场景

  • 工业与消费类面板指示:温控器、计费器、计时器等小型显示模块。
  • 仪器仪表与测试设备:数值提示、状态指示、简单计数显示。
  • 教育与原型开发:单片机学习板、电子实验与学生项目。
  • 家电与便携设备:微波炉面板、遥控设备显示窗等小尺寸数值显示需求。

七. 使用与可靠性建议

  • 焊接温度:建议使用常规的手工或波峰焊工艺,避免长时间过高温度(常规建议:不超过 260 ℃ 且持续时间尽量控制在数秒内),以免损伤封装或内部连接。
  • 环境防护:避免长期潮湿、高温或强腐蚀性气体环境,必要时采取密封或涂层防护措施。
  • 电气保护:在设计中考虑开机浪涌与反向电压保护,防止瞬态过压或反向偏置损坏 LED。

八. 小结

XL-DA2181SRBC 以其 0.28″ 的紧凑字符、稳定的红色发光和共阴 DIP 结构,为多种小型显示应用提供了简单、可靠且易于驱动的解决方案。在选型与电路设计时,关注限流与功耗预算、复用占空比以及焊接工艺,可确保该数码管长期稳定运行并发挥最佳显示效果。若需更详尽的引脚图与机械尺寸建议参考成兴光最新数据手册。

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