WMSIC Electronic Components

KOA RCTCTE

ModelRCTCTE
BrandKOA
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 25+

Available for RFQ

Technical data

Product details

18 specifications

Core information

Product name
KOA RCTCTE
Type
KOA
Unit
Electronic Component
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
KOA
Electronic Component
RCTCTE
Electronic Component
1
Electronic Component
Test Point / Test Loop
Electronic Component
0.034g
Electronic Component
1
Electronic Component
BM0258766758
Electronic Component
Electronic Component
Connector Type
(SMD)
Electronic Component
Electronic Component
Electronic Component
2000
Electronic Component
2mmx1.25mm

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

RCTCTE 系列(KOA)Chip 型测试点产品概述

一、产品概述

RCTCTE 为 KOA 品牌的一款铁环型(贴片)测试点(TEST POINT CHIP),设计用于印刷电路板(PCB)上进行功能测试、在线测量与维修接触点。该型号无塑胶包覆,金属环结构直接作为接触面,适配自动化贴片与回流焊工艺,典型占板空间为 2.0 mm × 1.25 mm(长 × 宽),为低占板面、易布局的表面贴装测试点解决方案。

二、结构与材料要点

  • 结构形式:铁环型(环形裸露金属接触面),表面没有塑胶覆盖,利于直接探针接触。
  • 尺寸特点:占板空间小(2.0 mm × 1.25 mm),适合高密度布板环境。
  • 材料特性:常见为导电合金或不锈钢材质,表面通常作抗氧化处理或电镀(例如无铅锡、电镀金属层等),以保证良好导电性与耐磨性。具体材质和镀层请以 KOA 官方规格书为准。
  • 封装与包装:本型号为贴片型,适用于自动化贴装与回流焊流程,包装方式通常为卷带(tape & reel)以便 SMT 生产线取放。

三、功能与应用场景

  • 测试用途:用于在线电气连接、ICT(在线电路测试)、FCT(功能测试)、飞针测试与维修点接触。
  • 探针兼容性:适配弹簧针(spring probe)、针式探针(needle probe)、探针卡等常用测试装置;金属环设计能提高探针接触稳定性与重复寿命。
  • 适用场景:消费电子、通信设备、工业控制板、电源模块与模块化子板等需在生产或维修环节实现快速接触测量的 PCB。

四、设计与布局建议

为保证可靠焊接与探针接触性能,建议在 PCB 设计阶段注意以下要点:

  • 预留焊盘尺寸:根据产品占板空间 2.0 mm × 1.25 mm,设计对应的焊盘与焊膏印刷模板,确保焊接后金属环无遮挡且平整。
  • 焊膏量控制:采用适量焊膏以防止金属接触面被焊膏覆盖,必要时在焊膏层设计中对测试点区域减量或使用不涂焊膏区域(solder mask or paste cut-out)以保持接触面清洁。
  • 回流工艺兼容:选择与 PCB 其他元件相匹配的回流曲线,确保电镀层和基材在回流焊温度下稳定。无塑胶包覆的金属测试点通常可承受高温回流,但仍需参考厂家推荐的温度上限。
  • 机械强度与支撑:测试点附近避免过度机械应力集中的结构,若板上有多次插拔或机械探针作用,考虑在板层或支撑结构处增强强度。

五、装配与检测注意事项

  • 贴装精度:SMT 贴装需控制元件定位精度,避免因偏位导致接触面被焊膏包覆或接触面位置异常。
  • 清洗与残留物:回流后对焊膏和助焊剂残留进行清洗,特别是接触面区域应保持清洁,以免影响测量与接触阻抗。
  • 探针接触测试:在量产验证阶段进行探针寿命与接触阻抗测试,验证在设定压力下的可靠性与重复性。
  • 储存要求:避免长期潮湿或腐蚀性环境存放,电镀层可能受环境影响而氧化,影响接触性能。

六、优势与选型建议

优势:

  • 极小占板空间,便于高密度电路布局;
  • 裸露金属环便于直接探针接触,测试可靠性高;
  • 贴片式设计兼容自动化生产线,降低人工装配负担。

选型建议:

  • 在最终选型前,请向 KOA 索取完整规格书(datasheet),确认材质、电镀类型、耐温等级、推荐回流温度曲线及机械寿命等关键参数;
  • 若需求包含高频测试或对接触电阻有严格要求,应要求供应商提供接触电阻范围与探针兼容性验证报告;
  • 大批量采购前建议先做试产验证(包含回流、清洗、测试接触寿命与可靠性验证)。

七、结论

RCTCTE 系列铁环型贴片测试点为需要小体积、高可靠测试接触的 PCB 提供了实用的解决方案。其无塑胶的金属接触结构适合自动化贴装与多次探针接触场景。为确保最终产品性能与生产良率,设计与工艺上应重视焊膏量控制、回流工艺兼容性以及探针接触验证;同时建议依据 KOA 的官方规格书进行详细参数确认与试产验证。

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