Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
HXY MOSFET SMAJ48CA
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- HXY MOSFET SMAJ48CA
- Type
- HXY MOSFET
- Minimum package
- 5000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- HXY MOSFET
- Electronic Component
- SMAJ48CA
- Electronic Component
- 1
- Package
- SMA(DO-214AC)
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.115g
- Electronic Component
- 1
- Electronic Component
- BM0257671861
- Operating Temperature
- 65℃~+150℃
- Voltage
- 77.4V
- Current(Ir)
- 1uA
- Voltage(VBR)
- 53.3V
- 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.
SMAJ48CA 产品概述
一、产品简介
SMAJ48CA 是华轩阳电子（HXY MOSFET）推出的一款双向瞬态电压抑制二极管（TVS），封装为SMA（DO-214AC），用于抑制电气系统中的浪涌和瞬态过电压。该器件针对48V级工作环境优化，能在短时冲击下提供高达400W（10/1000µs）的吸收能力，适用于工业、通信和电源保护场景。
二、主要参数与性能
- 极性：双向（适合交流或对称脉冲保护）
- 反向稳态电压 Vrwm：48V（推荐工作电压标称）
- 钳位电压 Vc：77.4V（典型峰值钳位值）
- 峰值脉冲电流 Ipp：5.2A（10/1000µs 波形）
- 峰值脉冲功率 Ppp：400W（10/1000µs）
- 击穿电压 Vbr：53.3V（典型）
- 反向漏电流 Ir：1µA（额定条件下）
- 工作温度范围：-65℃ 至 +150℃
这些参数表明器件在规定冲击能量下具有可靠的钳位能力与低漏电特性，适合对电压尖峰有严格要求的场合。
三、典型应用
- 48V 通信供电、交换机、电源输入保护
- PoE（供电以太网）及网络设备的输入端保护
- 工业控制与自动化设备的信号线与电源保护
- 车载非核心电源总线（需结合车规要求验证）
- 电源模块、整流器输入端的浪涌抑制
四、封装与安装要点
SMA（DO-214AC）为表面贴装封装，便于自动化贴片与回流焊工艺。布局建议：
- 尽量将TVS靠近被保护端口布局，缩短走线长度以降低感抗。
- 加大铜箔散热面积以提升脉冲功率循环能力和热稳定性。
- 遵循制造商回流焊温度曲线，避免过高回流温度影响可靠性。
五、设计与选型建议
- 选型时将工作电压与Vrwm匹配，SMAJ48CA 适用于48V左右工作点；若长期工作电压偏高，应选更高Vrwm规格。
- 注意钳位电压77.4V为峰值钳位，系统中负载或器件需承受该短时电压。
- 对于高能量或经常性冲击场合，需评估平均功耗和重复冲击寿命，并可并联或选择更高Ppp等级的器件。
- 若为直流单向保护，可考虑单向TVS以获得更低正向压降与更佳保护性能。
六、可靠性与工作环境
器件工作温度范围宽（-65℃～+150℃），适应苛刻环境。实际应用中需考虑长时间高温下漏电和击穿特性变化，并进行温升和热循环验证以保证长期可靠性。
总结：SMAJ48CA 提供针对48V级系统的高效瞬态保护，优点为双向抑制、较低漏电和400W的短时吸收能力。合理的PCB布局与热管理、按工况选型能发挥其最佳保护效果。
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.
1 Piece BGA Integrated Circuit Chipset MN864739 CXD90061GG CXD90062GG PS5 QFN-80
- Model
- MN864739
- Package
