Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
JUXING LL4148
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- JUXING LL4148
- Type
- JUXING
- Minimum package
- 2500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- JUXING
- Electronic Component
- LL4148
- Electronic Component
- 1
- Package
- LL-34
- Electronic Component
- Switch Diode
- Electronic Component
- 0.042g
- Electronic Component
- 1
- Electronic Component
- BM0226441834
- Current
- 200mA
- Diode
- Electronic Component
- Current(Ir)
- 5uA@75V
- (Vf)
- 1V@10mA
- Power Dissipation(Pd)
- 500mW
- Electronic Component
- 65℃~+175℃@(Tj)
- 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.
LL4148 开关二极管（JUXING 钜兴）产品概述
一、产品简介
LL4148 为钜兴（JUXING）推出的高速开关二极管，采用独立式 LL-34 封装，适用于各类高速脉冲与信号整流场合。器件在广温工作范围内保持稳定性能，适配工业级与商用级电路设计需求。
二、关键参数概览
- 封装：LL-34（独立式/轴向引出，便于穿孔安装）
- 工作结温（Tj）：-65 ℃ ～ +175 ℃
- 正向压降（Vf）：约 1.0 V @ 10 mA
- 直流反向耐压（Vr）：75 V
- 反向电流（Ir）：≤ 5 μA @ 75 V
- 反向恢复时间（Trr）：约 4 ns
- 最大耗散功率（Pd）：500 mW
- 最大整流电流（IF）：200 mA
三、主要性能特点
- 快速恢复：Trr ≈ 4 ns，适合高频开关与脉冲线路，能够减少开关损耗与尖峰干扰。
- 低反向漏流：在较高反向电压下 Ir ≤ 5 μA，有利于低功耗与高阻比信号应用。
- 宽温度适用性：-65～+175 ℃ 的结温范围满足苛刻环境与高温工况要求。
- 通用封装：LL-34 轴向引线形式便于手工与自动插件工艺，兼容传统波峰焊、点焊安装方式。
四、典型应用场景
- 数字逻辑开关与门电路中的高速切换元件
- 脉冲形成、限幅与钳位电路
- 信号线保护与反向保护二极管（低漏电）
- 通信设备与仪表中的检测与整流电路
- 小功率开关电源与驱动电路的快速恢复二极管
五、设计与使用建议
- 正向工作时尽量控制电流在规格范围内，长期运行建议留有安全裕量以延长寿命。
- 在高频开关应用中，合理布线以减小寄生电感、电容，必要时加阻尼或 RC 抑制网路。
- 若需要并联以增大电流能力，应注意热均衡与匹配，且并联并非总是最佳方案。
- 对于高温或长期高功率场合，需考虑散热与功耗分配，避免超过 Pd 额定值。
六、可靠性与选型注意
LL4148 提供良好的开关速度与耐压特性，但在最终选型时建议参考完整器件数据手册（温度依赖曲线、最大瞬时冲击电流、封装尺寸与引线规格等），并在样机阶段进行实际工况测试以验证性能。
如需进一步资料（完整规格书、测试报告或大批量采购支持），建议联系钜兴（JUXING）授权代理或技术支持，获取最新出厂参数与质量认证信息。
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 Integrated Circuit for IRS20124S IRS21956S SOP-20 IRS2453DS SOP-14
- Model
- IRS20124S
- Package
