WMSIC Electronic Components

RENESAS ISL3281EFHZ-T ISL3281EFHZ

ModelISL3281EFHZ-T
PackageSOT-23-6
BrandRENESAS
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration Electronic Component

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
RENESAS ISL3281EFHZ-T
Type
RENESAS
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RENESAS
Electronic Component
ISL3281EFHZ-T
Electronic Component
1
Package
SOT-23-6
Type
Receiver
Electronic Component
RS-485 / RS-422IC
Electronic Component
0.028g
Electronic Component
256
Electronic Component
1
Features
Tx / Rx;; Low Power
Electronic Component
BM0264594293
Operating Temperature
40℃~+125℃
Operating Voltage
3V~5.5V
Receiver
1
Data
20Mbps

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

ISL3281EFHZ-T 产品概述

一、概述

ISL3281EFHZ-T 是瑞萨(Renesas)出品的一款单通道差分接收器,面向工业级串行差分通信(RS‑422/RS‑485)应用。器件为接收器单元(驱动器数:0,接收器数:1),工作电压范围为 3.0V 至 5.5V,支持最高约 20 Mbps 的数据速率,工作温度范围为 -40 ℃ 至 +125 ℃,封装为低体积的 SOT‑23‑6,适合空间受限的板级设计与批量贴片生产(-T 表示带卷带包装)。

二、主要特性

  • 单通道差分接收器,兼容 RS‑422 与 RS‑485 差分信号。
  • 宽供电电压:3.0V~5.5V,便于与 3.3V 和 5V 系统直接互通。
  • 典型数据速率可达 20 Mbps,适用于高带宽匀速数据链路。
  • 工业级温度范围(-40 ℃ 至 +125 ℃),适合严苛环境长期工作。
  • 紧凑 SOT‑23‑6 封装,利于成本与空间优化。
  • 面向现场应用,具备抗共模干扰及失效保护(fail‑safe)设计,改善断线或输入差分为零时的输出态。

三、典型应用场景

  • 工业自动化总线与远程 I/O(PLC、运动控制器)。
  • 仪表与数据采集系统中的长距离差分信号接收。
  • 楼宇控制、安防与门禁系统的通信接口。
  • 嵌入式主板或通信模块中需要低功耗接收端的场合。

四、设计与布局要点

  • 差分输入线在长距离布线时应保持阻抗匹配并使用对绞线/屏蔽线;在接收端配置合适的终端电阻(通常为线对特性阻抗)。
  • 对 RS‑485 总线建议加入偏置(pull‑up/pull‑down)电阻,以保证总线空闲状态的确定性(失效保护配合使用)。
  • 在 VCC 端近旁放置 0.1 µF 陶瓷去耦电容,降低瞬态噪声对接收灵敏度的影响。
  • 对 EMI/ESD 较敏感的应用,可在差分输入端配合 TVS 或共模电感进行抑制;注意保护元件的容性以免影响高频特性。
  • 布线时尽量缩短模拟信号回路并保持地平面连续,避免数字开关噪声耦合到接收器输入。

五、可靠性与采购建议

SOT‑23‑6 小封装在板上散热受限,应评估长期功耗与环境温度对器件结温的影响,必要时采用散热与布局优化。ISL3281EFHZ‑T 常以卷带(‑T)形式供应,便于 SMT 自动化生产。具体引脚定义、时序、绝对最大额定值与测试条件请以官方数据手册为准,设计前应参考并验证样片性能。

六、选型提示

若系统需要双向总线驱动功能,应选用集成驱动器/接收器的全双工或半双工收发器器件;若仅作一端接收或多路集中接收,ISL3281EFHZ‑T 作为接收端单元具有良好的成本与尺寸优势。建议与瑞萨技术支持或当地代理确认样片、评价板与参考设计,加速开发与验证。

Request for quote

Send RFQ

Use the form for single models, category sourcing, and multi-line BOM requirements.

Send your target model and quantity.

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.

Electronic component model and package intelligence review on an ESD-safe inspection bench

Model & package intelligence

Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.

BOM matching and alternative component comparison workstation with protected IC samples

BOM matching & alternatives

BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.

Electronic component sourcing availability dashboard with ESD-protected samples

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.

Package confirmation Typical RFQ workflow

A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.

Mixed BOM triage Typical RFQ workflow

The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.

Obsolete-part review Typical RFQ workflow

Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.

Small-batch request Typical RFQ workflow

Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.

Repair batch evidence Typical RFQ workflow

When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.

Model suffix clarification Typical RFQ workflow

Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.

Export handoff Typical RFQ workflow

The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.

Replenishment inquiry Typical RFQ workflow

Related products

Packaged components ready for RFQ.