WMSIC Electronic Components

ON 1SMB5918BT3G

Model1SMB5918BT3G
PackageSMB
BrandON
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 26+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
ON 1SMB5918BT3G
Type
ON
Unit
Electronic Component
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
ON
Electronic Component
1SMB5918BT3G
Electronic Component
1
Package
SMB
Electronic Component
Zener Diode
Electronic Component
0.213g
Electronic Component
1
(Zzk)
350Ω
(Zzt)
4Ω
Electronic Component
BM0000284804
Diode
1
Current(Ir)
5uA@2V
Power Dissipation(Pd)
550mW
Electronic Component
4.84V~5.36V

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:1SMB5918BT3G 稳压二极管

一、产品简介

1SMB5918BT3G 是一款由安森美(ON Semiconductor)公司生产的稳压二极管,旨在为电子设备提供可靠的电压稳压解决方案。该器件主要用于保护电路,防止过电压对敏感组件造成损害,广泛应用于各种电子产品及系统中,如电源管理、电路保护等。

二、关键特性

  • 安装类型:1SMB5918BT3G 是一种表面贴装型元器件(SMD),适合于现代电子设备中常见的紧凑设计,便于自动化贴装工艺。

  • 工作温度范围:该器件可在极端的工作环境中运行,温度范围为 -65°C 至 150°C,使其能够适应多种应用场景,特别是需要高温稳定性的工业和汽车电子产品。

  • 齐纳电压:标称齐纳电压为 5.1V,有效的电压範围为 4.84V 至 5.36V,能够精确地为负载维持稳定的电压。

  • 最大功率:该稳压二极管的最大功率为 3W,这使其适合于高功率应用而不易过热。

  • 正向电压:在 200mA 的正向电流下,最大正向电压为 1.5V,说明其在正向工作条件下具有良好的电流承载能力和较低的压降。

  • 反向泄漏电流:反向泄漏电流在 2V 时仅为 5µA,这表明该器件在反向条件下能有效限制电流流动,从而提高电路的可靠性。

  • 阻抗:最大阻抗为 4 Ohms,进一步确保了其在稳压过程中对负载的快速响应能力。

  • 封装:采用 SMB (DO-214AA) 封装,具备较小的物理尺寸,便于在节省空间的前提下实现高效电路配置。

三、应用场景

1SMB5918BT3G 稳压二极管具有良好的电气特性和较宽的工作范围,适合于多种应用场景,包括但不限于:

  • 电源管理:在电源供应电路中,用于输出稳压和过压保护,确保整个电源系统的稳定运行。

  • 电路保护:在敏感元器件前添加稳压二极管,有效防止电压尖峰或瞬态过压,对电路设备进行保护。

  • 汽车电子:适合用于汽车内部电气系统,如车载充电器、照明系统、控制单元等,能够在汽车高温环境下稳定工作。

  • 消费电子产品:在智能手机、平板电脑和其他移动设备中,用作电源滤波器和过压保护,保护内部电子组件免受损害。

四、总结

综上所述,1SMB5918BT3G 是一款集高性能、可靠性和多功能于一体的稳压二极管,凭借其优异的电气特性和宽广的适用温度范围,成为了面向现代电子应用的理想选择。无论是在电源管理,还是在电路保护领域,均能够提供有效的解决方案,是电子设计工程师在选择稳压元件时的重要参考产品。

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.