STEF033JR ST 电子保险丝 | 9-覆晶（1.19x1.19） | 4A, 2.7V-18V

Product Overview

The STEF033JR is a 4A adjustable electronic fuse from STMicroelectronics, designed for overcurrent and overvoltage protection in compact applications. Housed in a 9-覆晶 (1.19x1.19mm) package, it integrates a power MOSFET and control circuitry to provide a robust protection solution with fast response time.

Detailed Technical Specifications

Key Features

• Adjustable overcurrent protection (4A max)
• Adjustable overvoltage clamp
• Fast response time (1µs)
• Low quiescent current
• Thermal shutdown
• Enable control
• Compact 9-覆晶 package

Target Applications

• 5G base station power distribution
• Automotive dashboard power protection
• Industrial sensor modules
• Portable battery-powered devices
• USB Type-C power delivery

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for STEF033JR. 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.
• HK-SZ Synergy, Flexible Settlement: Direct global shipping from Shenzhen with support for HK bank transfers and multi-currency.
• Escrow Secured Transactions: We support Escrow.com for secure transactions, ensuring peace of mind for batch orders.
• 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.

• 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.
• Original Factory Packaging: We maintain original factory packaging and seals to ensure ESD protection and physical integrity.

產品概述

STEF033JR 是意法半导体推出的一款 4A 可调电子保险丝，专为紧凑型应用中的过流和过压保护而设计。采用 9-覆晶（1.19x1.19mm）封装，集成功率 MOSFET 和控制电路，提供快速响应的稳健保护方案。

詳細技術參數

核心特性

• 可調過流保護（最大 4A）
• 可調過壓鉗位
• 快速響應時間（1µs）
• 低靜態電流
• 熱關斷
• 使能控制
• 緊湊的 9-覆晶封裝

典型應用場景

• 5G 基站電源分配
• 汽車儀表盤電源保護
• 工業傳感器模塊
• 便攜式電池供電設備
• USB Type-C 電力傳輸

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 STEF033JR 提供全面的供應鏈與批發解決方案。 我們的核心優勢包括：

• 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。
• 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。
• 深港聯動，結算靈活：深圳直發全球，物流高效可靠；支援香港銀行戶口轉賬及多幣種結算。
• Escrow 擔保交易：支援 Escrow.com 平台交易，保障買賣雙方權益，小批量訂單亦可安心在線下單。
• 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。

品質保證與合規

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。

• 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。
• 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。
• 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。

以上產品均為原廠正貨，提供 BOM 配單及現貨庫存支援，歡迎查詢。

HONG KONG JASIN SEMICONDUCTOR TECHNOLOGY COMPANY LIMITED
Trusted Partner for Automotive, Industrial, and Hard-to-find Components.
WhatsApp: +852 5209 9691 | Email: [email protected]