WMSIC Electronic Components

Nationstar BT-102GEK-31-572D

ModelBT-102GEK-31-572D
PackageThrough-hole, D=3mm
BrandPhotoelectric
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Photoelectric BT-102GEK-31-572D
Type
Nationstar
Minimum package
1500 未知

Technical parameters

Power
75mW
Electronic Component
Electronic Component
Electronic Component
Photoelectric
Electronic Component
BT-102GEK-31-572D
Electronic Component
1
Package
Through-hole, D=3mm
Electronic Component
572nm
Electronic Component
LEDDiode / LED
Electronic Component
0.3g
Electronic Component
1
LED
30°
LED
Electronic Component
Electronic Component
BM0228550476
Operating Temperature
25℃~+85℃
Current
25mA
Type
3mm

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

BT-102GEK-31-572D 产品概述

一、产品简介

BT-102GEK-31-572D 是国星光电推出的一款高亮度 3mm 圆形插件 LED,发光色为黄绿色(峰值波长 572nm)。采用无色透明透镜和窄光束设计(发光角度 30°),适合需要集中照明和显著指示效果的场合。典型正向电压为 2.0V,额定正向电流 25mA,单只额定功率 75mW,工作温度范围为 -25℃ 至 +85℃。

二、主要性能参数

  • 灯头类型:3mm 圆形插件(D=3mm)
  • 发光颜色:黄绿色
  • 峰值波长(λp):572nm
  • 透镜颜色:无色透明
  • 发光角度:30°
  • 正向压降(Vf):约 2.0V(典型)
  • 正向电流(If):额定 25mA(最大连续电流请参考厂家完整数据)
  • 额定功率:75mW(最大额定)
  • 工作温度:-25℃ ~ +85℃

注:上述为关键参数摘要,工程应用时请以厂家完整数据表为准。

三、产品特点

  • 色彩定位准确:以 572nm 为主峰,黄绿色视觉效果突出,适用于高可视性指示。
  • 窄角高亮:30° 小角度聚光设计,使光束集中、亮度感强,适合指示灯和光学定位应用。
  • 透明透镜:无色透明镜面保证光线纯净、失真小,适合需要精确颜色表现的场合。
  • 插件封装:D=3mm 标准插件结构,便于手工焊接或波峰/手工装配到通孔 PCB。

四、典型应用

  • 面板指示灯、信号指示与状态显示
  • 仪表仪器、通讯设备指示
  • 精细光学定位与短距离指示(如按键背光、指示针)
  • 工业控制面板、医疗设备(需按医疗级规范验证)
  • 其他要求高可视性、聚焦角度的电子指示场景

五、安装与使用建议

  • 焊接:作为插件元件,可采用手工焊接或波峰焊。推荐焊接温度不超过 260℃,焊接时间尽量控制在短时间内(典型建议 ≤5s)。焊接前可预热 PCB,避免热冲击。
  • 极性注意:安装时请严格区分正负极,避免反向电压损伤 LED。
  • 散热:虽然功耗不高,但在连续高亮条件下应保证良好通风与热散逸。建议在高环境温度下适当降低驱动电流以延长寿命。
  • 防静电:请进行 ESD 防护(佩戴接地腕带、使用防静电台面)以防损坏。

六、驱动与电路举例

典型恒流驱动为最佳选择,若使用串联限流电阻,可按欧姆定律计算: R = (Vs - Vf) / If

示例(以额定 If = 25mA 为例):

  • 5V 电源:R = (5V - 2.0V) / 0.025A = 120Ω(选择标准阻值 120Ω,功率 P = I^2·R ≈ 0.075W,建议使用 1/4W 或更高功率电阻)
  • 12V 电源:R = (12V - 2.0V) / 0.025A = 400Ω(选择标准阻值 390Ω 或 402Ω,功率 P ≈ 0.25W,建议 1/2W 电阻)
  • 3.3V 电源:R = (3.3V - 2.0V) / 0.025A = 52Ω(实际常用 56Ω,注意如果电源和 Vf 接近,亮度受电压波动影响较大)

更可靠的方法是使用恒流源或 LED 驱动 IC,可实现稳定亮度和更好的长期可靠性。对于频繁开关或需要亮度可调的场合,推荐 PWM 调光与恒流驱动结合使用。

七、可靠性与贮存

  • 使用寿命与发光强度相关:长期在额定或超额定电流下工作会加速老化,建议尽量不超过额定 25mA 连续驱动。
  • 贮存:避免潮湿与强光直射,建议在常温(20±5℃)和低湿(相对湿度 <60%)条件下保存;长期库存应密封防潮。装配前如需回流或焊接,建议按厂家推荐方法预处理。
  • 可靠性测试:出厂前通常会经过温度循环、振动和焊接耐受性测试,建议在关键应用场合进行样机寿命与下游环境测试。

总结:BT-102GEK-31-572D 以其集中的 30° 光束、黄绿色 572nm 波段和标准 3mm 插件封装,适合对可视性和聚焦性能有较高要求的指示类应用。工程选型时,请结合工作环境、驱动方式和散热设计进行电气与热设计验证。若需完整技术规格或可靠性数据,请参照国星光电官方数据手册或联系供应商获取原始资料。

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