Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
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Technical data
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
MHLA3029EGTD 是 MEIHUA(美华)出品的一款双色发光二极管封装器件,采用 3mm 圆形透镜灯头与 SIP-3-2.54mm 插针封装,器件内含两颗发光二极管并采用共阳极配置。该器件提供红色与黄绿色两种发光色,视角宽(150°),适合做面板指示、信号显示与一般照明指示用途。
注:上述为典型/标称值,具体性能以出厂数据表(DATASHEET)和实际测试为准。
为保证 LED 寿命与稳定工作,必须采用限流电阻或恒流源。推荐工作电流为 20 mA;若需降低亮度或延长寿命可选择 10~15 mA 工作点。
限流电阻计算(示例):
注意电阻功耗:Pr = (Vs - Vf) * If,例如上例红色:Pr = (5-2) * 0.02 = 0.06 W,选用 1/4 W(或更高)功率电阻即可。
由于为共阳极结构,通常把公阳极接至正电源,独立对每个阴极端串联限流电阻并接地,从而单独控制每色。
MHLA3029EGTD 是一款适用于通用指示与显示的双色 3 mm LED 器件,具有共阳极便于电路设计、宽视角(150°)与标准 SIP-3 通过孔封装,便于面板与插板安装。典型正向电流 20 mA、Vf 约 2.0 / 2.1 V、工作温度范围 -25 ~ +85 ℃,在正确限流与良好散热条件下可提供稳定可靠的指示光源。购买与设计时建议参考完整数据表以获取详细的机械尺寸、典型光强与可靠性测试数据。
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Product sourcing intelligence
WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.
Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.
Buyer sourcing scenarios
Typical RFQ scenarios based on the WMSIC form fields, catalog data, manual review steps, and shipment preparation workflow.
The buyer shares the full part number, package requirement, quantity, destination, and available product photos so the quotation can record the exact version under review.
A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.
The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.
Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.
Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.
When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.
Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.
The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.
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