Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
ON 1N4742ATR
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- ON 1N4742ATR
- Type
- ON
- Unit
- Electronic Component
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- ON
- Electronic Component
- 1N4742ATR
- Electronic Component
- 1
- Package
- DO-41
- Electronic Component
- Zener Diode
- Electronic Component
- 0.349g
- Electronic Component
- 1
- (Zzk)
- 700Ω
- (Zzt)
- 9Ω
- Electronic Component
- BM0093077366
- Diode
- 1
- Current(Ir)
- [email protected]
- Power Dissipation(Pd)
- 1W
- Electronic Component
- 11.4V~12.6V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
1N4742ATR 产品概述
基础信息
1N4742ATR 是一款由安森美半导体（ON Semiconductor）生产的稳压二极管。该器件专为提供稳压功能而设计，适用于电源管理及电压保护应用。其具有相对稳定的击穿电压和低反向泄漏电流，使其成为稳压和信号调节电路的优选组件。
关键参数
- 安装类型：通孔（Through-Hole）
- 工作温度范围：-65°C 到 200°C
- 标称齐纳电压 (Vz)：12V，容差±5%
- 反向泄漏电流：在9.1V时，最大反向泄漏电流为5µA
- 阻抗（最大值）(Zzt)：9Ω
- 最大功率：1W
- 封装：采用DO-41封装，外形尺寸为 D2.03mm x L4.06mm
应用场景
1N4742ATR 适用于多种应用场景，尤其是在保护电路和稳压电路上。以下是其主要应用领域：
- 电源保护：该稳压二极管能够保护下游电路免受电压瞬变的影响，尤其适合用于高压电路中的瞬态电压抑制。
- 信号稳压：在音频和视频信号处理电路中，需要稳压器件以保持信号质量，1N4742ATR 具有出色的电压稳定性，适合于此类应用。
- 电源适配器：适用于AC/DC适配器和开关电源中的压缩电路，能够有效稳压，确保持续稳定的输出。
- 汽车电子：由于其宽温工作范围，1N4742ATR 适用于各种汽车电子设备的保护和稳压需求。
耐用性与稳定性
1N4742ATR 的工作温度范围从-65°C到200°C，使其在极端环境下仍能正常工作。这一特性使得该二极管在恶劣环境条件下（如航空航天、汽车等领域）更具优势。此外，该器件的低反向泄漏电流能力（仅为5µA @ 9.1V）确保了在额定工作电压下的高效能和稳定性，降低了电路的能耗。
设计考量
在设计相关电路时，工程师需考虑以下几个方面：
- 确保所需的齐纳电压（12V）在设计的电路中足够满足负载的需求，避免因超出额定规格而导致的性能下降。
- 评估工作环境的温度范围，确认1N4742ATR 的耐用性满足应用需求。
- 考虑反向泄漏电流的影响，尤其是在低功耗或精密电路中，以确保不会影响整体电路性能。
结语
1N4742ATR 不仅是一个基础、重要的元件，兼具灵活性和高性能，适合多种应用场景。其坚固的工作温度范围和低反向泄漏电流，使其成为电子设计中的一项值得信赖的选择。在选择适当的稳压二极管时，1N4742ATR 在设计的可靠性和耐用性方面提供了强有力的保障，符合现代电子设计的诸多需求。
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.
