Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
RUILON RL250-300 RL250
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- RUILON RL250-300
- Type
- RUILON
- Minimum package
- 1000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- RUILON
- Electronic Component
- RL250-300
- Electronic Component
- 1
- Package
- Through-hole, P=5.1mm
- Electronic Component
- Resettable Fuse
- Electronic Component
- 1g
- Electronic Component
- 12mm
- Electronic Component
- 1
- Electronic Component
- 6s
- Electronic Component
- BM0264771493
- Voltage Rating(Vmax)
- 250V
- Power(Pd)
- 1.5W
- Current(Imax)
- 5A
- Electronic Component
- Electronic Component
- Electronic Component
- 1000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
RL250-300 产品概述
一、产品简介
RL250-300 为 RUILON（瑞隆源）系列的自恢复式过流保护元件，适用于需要重复过流保护与自动复位的线路。器件额定耐压为 250V，典型为聚合物自恢复保险器（PTC），在过流发生时阻值迅速上升以限制电流，故障清除后可自动恢复初态。
二、主要电气与机械参数
- 耐压（Vmax）：250V
- 最大电流（Imax）：5A（器件极限承载能力，非持续保护值）
- 保持电流（Ihold）：300mA（在此电流下器件应保持低阻态）
- 跳闸电流（Itrip）：600mA（到达此电流水平将使器件进入高阻态）
- 消耗功率（Pd）：1.5W（最大允许功耗）
- 初始态阻值（Rmin）：1Ω（常温、未触发时典型值）
- 跳断后阻值（R1max）：9Ω（触发后稳态最大阻值）
- 动作时间：约 6s（在规定过流条件下的典型动作时间）
- 封装：插件，导脚间距 P = 5.1mm，器件长度 12mm
三、典型应用场景
适用于电源输入侧、AC/DC 适配器、通信设备、家用电器、消费电子、LED 驱动和电池保护等需要防止持续过流或设备故障时自动限制电流的场合。尤其适合对重复性故障可自动恢复的系统。
四、使用建议与注意事项
- 长期工作电流应低于 Ihold，以避免误触发；选择时留有裕量以适应环境温度与散热条件。
- Imax 表示器件极限承载能力，不建议长期以该电流运行。
- 动作时间 6s 为典型值，实际动作受环境温度与电路散热影响。
- 该器件为自恢复保护元件，无法像传统熔断器那样在短路瞬时切断大电流；在需要快速断开大电流的场合，应与快速熔断器或断路器配合使用。
- 焊接与安装时注意避免过热及机械应力损伤封装与引脚。
五、选型与采购建议
在选型时以 Ihold 和 Itrip 为首要参考参数，结合实际工作电流、允许触发时间和外壳散热条件进行确认。RUILON 品牌插件封装便于手工焊接和维修，P=5.1mm 适配常见 PCB 孔距。购买时请向供应商确认样片测试数据及温度标定曲线，以保证在目标应用下的可靠性。
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.
1 Piece Integrated Circuit for IRS20124S IRS21956S SOP-20 IRS2453DS SOP-14
- Model
- IRS20124S
- Package
