Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
Littelfuse SMBJ17CA
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- Littelfuse SMBJ17CA
- Type
- LITTELFUSE
- Unit
- Electronic Component
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- LITTELFUSE
- Electronic Component
- SMBJ17CA
- Electronic Component
- 1
- Package
- DO-214AA
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.17g
- Electronic Component
- 1
- Electronic Component
- BM0229962948
- Operating Temperature
- 65℃~+150℃
- Voltage
- 27.6V
- Electronic Component
- IEC 61000-4-4；IEC 61000-4-2
- Current(Ir)
- 1uA
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：SMBJ17CA 瞬态抑制二极管
1. 产品简介
SMBJ17CA 是由美国力特（Littelfuse）公司推出的高性能瞬态抑制二极管，属于 SMBJ 系列。作为一款专为雷击、静电放电（ESD）等瞬态电压事件设计的保护器件，它能够高效地保护敏感电子设备免受过电压损害。SMBJ17CA 的表面贴装型设计，兼具紧凑性和便利性，适用于各种电子应用。
2. 主要特性
- 类型：齐纳二极管，具备稳压和瞬态抑制功能。
- 反向断态电压：典型值为 17V，为设备提供稳定的反向电压。
- 击穿电压：最小击穿电压为 18.9V，确保在高于该电压的瞬态条件下迅速响应。
- 电压-箝位特性：在不同电流脉冲（Ipp）情况下，其最大箝位电压可达 27.6V，有效保护电路中敏感元器件。
- 峰值脉冲电流：具备高达 21.8A 的抗脉冲电流能力，确保在强烈瞬态事件中依然保持稳定。
- 峰值脉冲功率：在 10/1000µs 的脉冲下，其峰值功率可达 600W，为电路提供强力的瞬态抑制。
- 工作温度范围：-65°C 到 150°C，支持在恶劣环境下长时间稳定运行。
- 安装类型：表面贴装，封装采用 DO-214AA（SMB），可提高PCB布局的灵活性和空间利用率。
3. 应用场景
SMBJ17CA 主要应用于工业控制、通信设备、消费电子、医疗设备等领域，尤其适合以下应用：
- 电源线保护：尽管自身未集成电源线路保护功能，但可与其他保护器件联动使用，以提供全方位的电压保护。
- 信号线保护：在各种信号传输设备中，防止过电压对数据完整性造成影响。
- 电池保护：为电池管理系统提供过压保护，延长设备使用寿命。
- LED 照明：安装在 LED 驱动电路中，有效抑制由于电源波动引起的瞬态变化。
4. 性能优势
SMBJ17CA 作为一款瞬态抑制二极管，结合了高稳定性、高功率处理能力和宽工作温度范围的特点，提供以下几方面的性能优势：
- 快速响应：该器件能够在瞬态事件发生时迅速导通，实时钳制过电压，确保下游设备的安全。
- 高能量处理能力：凭借 600W 的峰值脉冲功率和 21.8A 的峰值电流能力，SMBJ17CA 可以有效应对较强的瞬态冲击。
- 稳健性：广泛的工作温度范围使得 SMBJ17CA 能够在高温、低温环境中保持可靠性，降低故障率。
- 易于集成：表面贴装的设计，不仅降低了空间占用，也让自动化贴片生产更为简便。
5. 结论
综上所述，SMBJ17CA 瞬态抑制二极管是一款理想的电压保护器件，适合需要防护的高密度电路布局。其卓越的电压箝位特性和高功率处理能力使其成为各种电子应用中防止瞬态过电压损害的重要选择。无论是在工业、通信还是消费电子产品中，选择 SMBJ17CA，都能为设计带来稳定性和安全性。
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.
