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.
BL8072COTR33 是贝岭(BELLING)推出的一款高性能线性稳压器(LDO),3.3V 固定输出、单路正极输出,封装为 TO-252(DPAK)。器件设计面向需要低静态功耗与中大电流输出的电源管理场合,适合便携、工业及后级精密供电等应用。
BL8072COTR33 集成热关断与短路保护,当输出出现过流或器件过热时,内部保护电路会限制输出或断开,以防止器件损坏并提高系统容错性。低静态电流设计既保证空载或待机时电池寿命,又在需要输出较大电流时维持稳定输出。
TO-252(DPAK)封装带有底部散热片,适合通过 PCB 铜箔扩展进行散热。考虑到 2A 输出时器件功耗较大(P = (VIN - VOUT) × IOUT),建议在 PCB 上使用大面积散热铜箔、若干过孔连接至背面铜层,并遵循厂商热阻/封装说明以控制结温。对于高压差或长时间满载工况,应评估结温并必要时采用散热片或更大铜面积。
以上为 BL8072COTR33(TO-252) 的产品概述与设计要点。欲获取详细电气特性曲线、引脚排列与应用参考电路,请参考贝岭官方资料或联系供应商索取完整数据手册。
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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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