Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
HF HF7520-012-HSTP HF7520
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- HF HF7520-012-HSTP
- Type
- HF
- Minimum package
- 50 盒装
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- HF
- Electronic Component
- HF7520-012-HSTP
- Electronic Component
- 1
- Package
- Through-hole, 16x22mm
- Electronic Component
- Power Relay
- Electronic Component
- 8g
- Electronic Component
- 4
- Electronic Component
- 1
- Electronic Component
- 15ms
- Electronic Component
- BM0257710296
- Operating Temperature
- 40℃~+105℃
- Contact Resistor
- 100mΩ
- Coil Voltage
- 12V
- Coil Resistor
- 720Ω
- Coil Type
- Coil
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
HF7520-012-HSTP 产品概述
一、概述
HF7520-012-HSTP 是宏发（HF）出品的插件式微型功率继电器，标准 DIP 形封装（尺寸约 16×22mm），适用于需要小体积、高开关能力的控制场合。该继电器为一组常开（SPST-NO）触点结构、无极性单线圈驱动，线圈标称电压 12V，线圈功率低，仅 200mW，便于低功耗驱动和密集PCB布局。
二、主要参数（要点）
- 线圈电压：12 V DC（无极性单线圈）
- 线圈电阻：720 Ω（静态电流 ≈ 16.7 mA；线圈功率 ≈ 200 mW）
- 触点形式：一组常开（单刀单掷）4 引脚插件
- 触点材料：AgSnO2
- 触点电气容量（阻性负载）：16 A @ 125 VAC；8 A @ 250 VAC；10 A @ 30 VDC
- 最大切换电压：250 VAC / 30 VDC；最大切换电流：16 A
- 接触电阻：≤100 mΩ
- 动作/释放时间：约 15 ms / 5 ms
- 工作温度范围：-40 ℃ ~ +105 ℃
三、典型应用场景
- 家电控制（如小型电机、加热器控制、开关电源输出切换）
- 工业自动化与楼宇控制（继电控制模块、输入/输出扩展）
- 汽车电子（非严格汽车级环境下的辅助控制）
- 通讯与仪器设备中的电源隔离与负载切换
四、使用建议与注意事项
- 驱动：线圈电流约 16.7 mA，可用低功耗 MCU 输出驱动经驱动晶体管或 MOSFET 驱动器直接驱动；若使用二极管进行浪涌抑制会使线圈具极性，影响“无极性”优势，推荐使用 RC 或 TVS 抑制器以保持无极性特性。
- 负载类型：对纯阻性负载可按额定容量使用；对感性负载（电机、继电器线圈、感应负载）建议适当降额并在触点两端增加外部吸收器（RC、TVS 或外部接触保护继电器），以延长触点寿命并减少电弧。
- 焊接与安装：采用通孔插件焊接，焊接时注意控制回流/波峰焊温度与时间，避免对封装和内部结构造成热损伤。
- 环境与安全：工作环境温度不得超过额定范围，实际使用中应考虑环境温升与散热条件，长期或高频切换时注意触点发热与寿命衰减。
- 选型提示：若需高频率切换或更长机械/电气寿命，应向供应商确认额定寿命（机械与电气操作次数）并考虑更高规格或带保护的型号。
五、小结
HF7520-012-HSTP 以其小巧的 DIP 插件封装、低线圈功耗与较高的触点承载能力（最高可达 16 A）适合在空间受限且需切换中等功率负载的场合使用。选用时请严格遵循额定电压、电流及环境条件，对感性负载采取适当的保护措施，以确保长期可靠运行。若需要进一步的寿命数据或应用电路示例，可联系供应商获取详细技术资料。
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
