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JDTfuse ASMD2920-400-24V ASMD2920
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- JDTfuse ASMD2920-400-24V
- Type
- JDTFUSE
- Minimum package
- 1500 编带
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- JDTFUSE
- Electronic Component
- ASMD2920-400-24V
- Electronic Component
- 1
- Electronic Component
- 5.44mm
- Package
- 2920
- Electronic Component
- Resettable Fuse
- Electronic Component
- 0.225g
- Electronic Component
- 7.98mm
- Electronic Component
- 1.6mm
- Electronic Component
- 1
- Electronic Component
- 4s
- Electronic Component
- BM0264801266
- Operating Temperature
- 40℃~+85℃
- Voltage Rating(Vmax)
- 24V
- Power(Pd)
- 1.5W
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
ASMD2920-400-24V 产品概述
一、产品简介
ASMD2920-400-24V 是 JDTfuse（集电通）推出的一款高性价比、自恢复过流保护元件，适用于 24V 及以下系统的短路和过流防护。该器件以稳定的动作特性、低初始电阻和紧凑的 2920 封装尺寸，满足消费电子、通信设备、工业控制与汽车电子等多类应用的保护需求。
二、主要技术参数
- 耐压 (Vmax)：24 V
- 最大电流 (Imax)：40 A
- 保持电流 (Ihold)：4 A
- 跳闸电流 (Itrip)：8 A
- 消耗功率 (Pd)：1.5 W
- 初始态阻值 (Rmin)：8 mΩ
- 跳断后阻值 (R1max)：40 mΩ
- 动作时间：4 s（在规定过流条件下触发）
- 工作温度：-40 ℃ ~ +85 ℃
三、结构与封装
封装型号：2920（尺寸：长 7.98 mm × 宽 5.44 mm × 高 1.6 mm），适合表面贴装工艺（SMT）。低剖面设计利于空间受限的电路板布局，并便于自动贴装与回流焊接。
四、典型应用场景
- 24V 电源总线短路与过流保护
- 电机驱动与继电器线圈保护（瞬态突流防护）
- 工业控制与楼宇设备电源保护
- 通信设备、电源模块与逆变器输入侧保护
- LED 驱动、电池管理与储能系统局部保护
五、性能与优势
- 低通态电阻（Rmin 8 mΩ）：减小正常工作压降，提高能效，适合大电流通道使用。
- 明确动作阈值（Ihold/Itrip）：4A 保持、8A 跳闸，便于系统按需选型与故障管理。
- 自恢复特性：故障消除后自动恢复导通，避免频繁更换，降低维护成本。
- 宽工作温度范围（-40~85℃）：适应严苛环境，可靠性高。
- 紧凑封装与高电流承载（Imax 40A）：在有限空间内实现高效保护。
六、设计与选型建议
- 正常工作电流应低于 Ihold（4A），建议留有余量（一般取 70%~80% 的余量）以避免误动作。
- 若系统可能出现较大启动电流或浪涌，应参考 Pd 及动作时间（4s）评估是否会触发跳闸。
- 对于长时间过流或高频脉冲场景，需验证器件在目标温度下的实际动作特性。
- 布局时保证良好散热路径，避免聚集热源影响触发可靠性。
七、可靠性与环境要求
ASMD2920-400-24V 设计考虑工业级可靠性，工作温度覆盖 -40 ℃ 至 +85 ℃，适合室外与工业环境。为确保长期稳定，应避免超出规格的电压、电流与环境温度，焊接参数遵循厂商建议以免影响性能。
八、订购信息与品牌
品牌：JDTfuse（集电通）
封装：2920 SMD
产品定位：品质稳定、性价比高的表面贴装自恢复过流保护元件。
在选型或批量采购前，建议向供应商索取详细数据手册与样品进行实测验证，以确保器件在目标系统中的兼容性与稳定性。
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