Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
CJ SMF64A
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- CJ SMF64A
- Type
- CJ
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- CJ
- Electronic Component
- SMF64A
- Electronic Component
- 1
- Package
- SOD-123FL
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.042g
- Electronic Component
- 1
- Electronic Component
- BM0228055740
- Operating Temperature
- 55℃~+150℃
- Voltage
- 103V
- Current(Ir)
- 1uA
- Voltage(VBR)
- 78.6V
- Electronic Component
- Electronic Component
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SMF64A（CJ）产品概述
一、产品简介
SMF64A 是 CJ（江苏长电/长晶）出品的一款单向瞬态电压抑制二极管（TVS），封装为 SOD-123FL。器件以 10/1000μs 浪涌波形为测试基准，在瞬态冲击下提供可靠的钳位保护，适用于直流电源线与敏感电子接口的过压、浪涌防护。
二、主要电气参数
- 钳位电压（VCL）：103 V（测试条件 10/1000μs）
- 额定反向工作电压（VRWM）：64 V
- 击穿电压（VBR）：78.6 V
- 峰值脉冲功率（PPP）：200 W（10/1000μs）
- 峰值脉冲电流（Ipp）：1.9 A（10/1000μs）
- 反向漏电流（IR）：1 μA（在 VRWM 条件下）
- 极性：单向
- 工作温度范围：-55 ℃～+150 ℃
三、特性与优势
- 高能量吸收能力：200 W（10/1000μs）峰值功率与 1.9 A 峰值电流，能应对常见的线路浪涌与切换瞬态。
- 明确的钳位水平：103 V 钳位电压为系统设计提供可预见的过压保护边界，有助于保护下游器件。
- 宽温度适应：-55 ℃ 到 +150 ℃ 的工作温度覆盖工业级与苛刻环境要求。
- 低漏电流：1 μA 的反向漏电流适合对静态功耗敏感的系统。
四、典型应用场景
- 48 V 通信与 PoE 电源总线防护（VRWM=64 V 适配 48 V 系统余量）
- 工业控制与自动化设备电源浪涌保护
- 电池管理与逆变器输入端的瞬态抑制
- I/O 接口、继电器驱动与电源模块的过压保护
五、封装与布局建议
SOD-123FL 小型封装便于表面贴装与高密度 PCB 布局。推荐将 SMF64A 尽量靠近被保护接口或电源输入端放置，缩短走线并减小串联电感。焊盘设计应保证良好散热，为高能量吸收场合考虑增加铜箔面积或热沉连接。
六、可靠性与选型注意
器件能在工业温度范围内稳定工作，适合长期运行的防护场合。选型时应核对系统最大工作电压与 VRWM（64 V），并考虑钳位电压（103 V）对下游器件的承受能力；若系统需更低钳位或更高冲击电流能力，应选择更大功率或并联器件方案。
七、替代与采购建议
SMF64A 适合需要小封装且中等能量吸收能力的场合。若需直接替代，可在参数（VRWM、VBR、VCL、PPP、封装）匹配的前提下比较其他厂商对应型号，或选择同系列不同额定电压型号以满足不同系统电压档位。订货时注明品牌与封装（CJ，SOD-123FL）以确保一致性。
Request for quote
Send RFQ
Use the form for single models, category sourcing, and multi-line BOM requirements.
Product sourcing intelligence
Model, package, availability, and BOM fit reviewed before quotation.
WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.
BOM matching & alternatives
BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.
Sourcing availability signal
Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.
Buyer sourcing scenarios
Examples of how common component sourcing requests are organized.
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.
Related products
Packaged components ready for RFQ.
