Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
Littelfuse 0452012.MRL 0452012
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- Littelfuse 0452012.MRL
- Type
- LITTELFUSE
- Unit
- Electronic Component
- Minimum package
- 1000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- LITTELFUSE
- Electronic Component
- 0452012.MRL
- Electronic Component
- 1
- Electronic Component
- 2.5mm
- Package
- 2410
- Type
- SMD Fuse
- Electronic Component
- Non-Resettable Fuse
- Electronic Component
- 0.198g
- Electronic Component
- 6.1mm
- Electronic Component
- 2.69mm
- I2t
- 260.46
- Electronic Component
- 1
- Electronic Component
- 50A
- Electronic Component
- BM69416305
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
产品概述：0452012.MRL（Littelfuse 452 Series Slo-Blo 60 V 12 A 贴片式保险丝）
0452012.MRL是美国力特（Littelfuse）旗下452系列的一款高性能贴片式保险丝，属于延时熔断/慢速熔断类型。这款产品专为电气保护设计，广泛应用于各类电子设备中，能够有效防止过电流和短路引发的电气故障，确保电子设备的稳定和安全运行。
关键参数
- 熔断 I²t（260.46）：标志着保险丝对过载电流的响应能力，I²t值越高，表示保险丝在遭遇短暂过载电流时的承受能力越强，能够在特定条件下允许更大的瞬时电流通过。
- 分断能力（50A）：这是保险丝在发生短路时能安全切断的最大电流。这一能力确保在出现故障时，不会由于电流过大而导致设备或其它元件的损坏。
- 工作温度（-55°C ~ 125°C）：这款保险丝适应广泛的温度范围，适合在各种恶劣环境下使用，确保产品在高温或低温环境中的稳定性和可靠性。
- 额定电压 DC/AC（125V）：其额定电压为125V，意味着这款保险丝可以在直流及交流电路中安全工作，符合多种电气系统的需求。
- 额定电流（12A）：这是保险丝正常工作时的最大电流，确保了其在额定电流下的持续安全运行。
- 标称冷电阻（6.1mΩ）：较低的电阻值有助于减少功耗及发热，提高能效，并确保在正常工作条件下的损耗最低。
产品特点
- 延时熔断设计：0452012.MRL采用延时熔断设计，能够在短时间内承受瞬时过电流，非常适合应对电机起动、冲击负载等瞬态情况，有效避免误熔断。
- 紧凑贴片封装：该保险丝采用SMD（表面贴装）封装，尺寸为6.1 x 2.69 mm，体积小巧，适合在空间有限的电路板上应用，方便安装和布线。
- 广泛应用领域：本产品广泛适用于众多领域，包括消费电子、工业设备、医疗仪器、汽车电子以及其他电力和电子设备，为这些设备提供了可靠的过流保护解决方案。
应用场景
0452012.MRL被广泛应用于各类需要过流保护的电子产品中，例如：
- 消费电子：手机充电器、便携式音响、家用电器等，确保在使用过程中不会因过载导致设备损坏。
- 工业设备：如传感器、控制器等，提供必要的电路保护，提升设备的可靠性与安全性。
- 汽车电子：在汽车电气系统中，防止电流冲击造成的元器件损坏，提升汽车整体安全性。
总结
0452012.MRL是一款高性能的贴片式保险丝，结合了Littelfuse先进的设计理念和制造工艺，具备优越的电气特性和广泛的应用适应性。它的延时熔断能力、优良的温度特性及小巧的封装使其成为了各种电子设备内电气保护的理想选择，尤其在面对瞬态电流冲击的应用中，更是表现出色。对于追求安全性和可靠性的电子产品设计师而言，这款保险丝无疑是一个值得信赖的选择。
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.
