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Product Overview
The ST4E1240DT is a high-performance 4-channel ESD protection device from STMicroelectronics, designed to safeguard sensitive electronic circuits from electrostatic discharges. Housed in a compact 8-SOIC package, it offers robust protection for high-speed data lines and power interfaces. With a working voltage of 24V and exceptional ESD withstand capability of ±30kV (contact discharge) per IEC 61000-4-2, this device is ideal for industrial, automotive, and telecom applications requiring reliable surge protection.
Detailed Technical Specifications
| Parameter |
Value |
| Number of Channels |
4 |
| Working Voltage (Vrwm) |
24V |
| Breakdown Voltage (Vbr) |
26.7V (typ) |
| Clamping Voltage (Vcl) @ 8/20µs |
40V (typ) |
| ESD Withstand (IEC 61000-4-2) |
±30kV (contact), ±30kV (air) |
| Peak Pulse Current (Ipp) @ 8/20µs |
5A |
| Leakage Current (IR) @ Vrwm |
< 0.1µA |
| Capacitance (Cj) @ 1MHz |
1.5pF (typ) |
| Operating Temperature |
-40°C to +125°C |
| Package |
8-SOIC |
Key Features
- 4-channel ESD protection for high-speed data lines
- Working voltage up to 24V
- Ultra-low leakage current (< 0.1µA)
- Low clamping voltage ensures minimal stress on protected ICs
- Low capacitance (1.5pF) suitable for high-speed interfaces
- Compliant with IEC 61000-4-2 Level 4 (±30kV contact/air)
- RoHS compliant and halogen-free
Target Applications
- 5G base station power and signal lines
- Automotive dashboard and infotainment systems
- Industrial Ethernet (PROFINET, EtherCAT)
- USB 3.0/3.1 and HDMI interfaces
- RS-485/RS-232 communication ports
- Battery management systems (BMS)
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
ST4E1240DT. Our core advantages include:
-
24/7 Global Customer Support: Professional team providing instant
quotes and technical support worldwide.
-
In-stock Inventory, Same-day Shipping: We maintain localized stock;
orders confirmed before 4 PM are shipped the same day.
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HK-SZ Synergy, Flexible Settlement: Direct global shipping from
Shenzhen with support for HK bank transfers and multi-currency.
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Escrow Secured Transactions: We support Escrow.com for secure
transactions, ensuring peace of mind for batch orders.
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BOM Kitting & Sampling Services: Specialized sourcing for
testing samples and urgent shortage components.
Quality Assurance & Compliance
Jasin Chip guarantees that all delivered products are 100% original factory stock
with full quality assurance and traceability.
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100% Original & Authentic: All components are guaranteed to
be authentic with strict quality control.
-
RoHS Compliant: All electronic components comply with international
environmental and safety standards.
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Original Factory Packaging: We maintain original factory packaging
and seals to ensure ESD protection and physical integrity.
產品概述
ST4E1240DT是意法半导体推出的一款高性能4通道ESD保护器件,专为保护敏感电子电路免受静电放电影响而设计。采用紧凑的8-SOIC封装,可为高速数据线和电源接口提供稳健保护。其工作电压为24V,ESD耐受能力高达±30kV(接触放电,符合IEC 61000-4-2标准),非常适合需要可靠浪涌保护的工业、汽车和电信应用。
詳細技術參數
| 參數 |
數值 |
| 通道數 |
4 |
| 工作電壓 (Vrwm) |
24V |
| 擊穿電壓 (Vbr) |
26.7V (典型值) |
| 箝位電壓 (Vcl) @ 8/20µs |
40V (典型值) |
| ESD耐受 (IEC 61000-4-2) |
±30kV (接觸), ±30kV (空氣) |
| 峰值脈衝電流 (Ipp) @ 8/20µs |
5A |
| 漏電流 (IR) @ Vrwm |
< 0.1µA |
| 電容 (Cj) @ 1MHz |
1.5pF (典型值) |
| 工作溫度 |
-40°C 至 +125°C |
| 封裝 |
8-SOIC |
核心特性
- 4通道ESD保護,適用於高速數據線
- 工作電壓高達24V
- 超低漏電流 (< 0.1µA)
- 低箝位電壓,減少對被保護IC的應力
- 低電容 (1.5pF),適合高速接口
- 符合IEC 61000-4-2 Level 4標準 (±30kV接觸/空氣)
- 符合RoHS且無鹵素
典型應用場景
- 5G基站電源和信號線
- 汽車儀表板和資訊娛樂系統
- 工業乙太網 (PROFINET, EtherCAT)
- USB 3.0/3.1 和 HDMI 接口
- RS-485/RS-232 通信端口
- 電池管理系統 (BMS)
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 ST4E1240DT 提供全面的供應鏈與批發解決方案。
我們的核心優勢包括:
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全天候環球客戶支援:專業團隊為您提供即時報價及技術支援,無需漫長等待。
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現貨庫存,即日發貨:確保現貨充足。下午 4 點前確認訂單,即可安排當天寄出。
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BOM 配單與樣板服務:提供樣板測試及認證支援。專注一站式 BOM 配套及緊急缺料採購服務。
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Jasin Chip 承諾所有出貨產品均為原廠正貨,具備完善的品質保證及產品可追溯性。
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100% 原廠正貨:承諾所有供應零件均為原裝現貨,品質嚴格把關,來源清晰可追溯。
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符合 RoHS 認證:所有電子元器件均符合國際環保標準及相關安全認證。
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原廠封裝保護:嚴格保留原廠原始包裝及封條,確保物流過程中的靜電防護 (ESD) 與物理安全。
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