WMSIC Electronic Components

ST MMBT8550C transistor MMBT8550C

ModelMMBT8550C
PackageSOT-23
BrandST
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

19 specifications

Core information

Product name
ST MMBT8550C
Type
ST
Minimum package
3000

Technical parameters

Electronic Component
ST
Electronic Component
MMBT8550C
Electronic Component
1
Package
SOT-23
Electronic Component
1 PNP
Electronic Component
Transistor(BJT)
Electronic Component
0.028g
Electronic Component
1
Electronic Component
BM0223561139
Transistor Type
PNP
Frequency(f T)
100MHz
Power Dissipation(Pd)
350mW
Electronic Component
3000
Collector Current(Ic)
600mA
Current (h FE)
100
Voltage(Vebo)
6V

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

MMBT8550C 产品概述

一、产品简介

MMBT8550C 是一款常用的PNP型双极性晶体管 (BJT),具有350mW的功率耗散能力和25V的最大集电极-发射极电压(VCE),以及600mA的最大集电极电流(IC)。它采用SOT-23 (SOT-23-3)封装,体积小,适合于各种空间受限的电子产品中。MMBT8550C,作为ST(先科)公司出品的器件,具备良好的性能可靠性,是在信号放大以及开关应用中广泛使用的选择。

二、主要规格

  • 类型:PNP 双极性晶体管
  • 功耗:350mW
  • 最大集电极电压 (VCEo):25V
  • 最大集电极电流 (IC):600mA
  • 增益带宽积:良好的频率响应特性
  • 封装形式:SOT-23 (SOT-23-3),表面贴装

三、功能特性

  1. 高增益:MMBT8550C 提供良好的电流增益,能够在较小的基极电流下驱动较大的负载电流,使其在信号放大中获得优良的性能。

  2. 低饱和电压:其低饱和特性使得在开关应用中能有效降低功率损耗,提升系统的整体效率。

  3. 良好的温度稳定性:能够在较宽的温度范围内稳定工作,适应多种环境条件。

  4. 快速开关特性:适合于快速开关应用需求,技术参数上令人满意。

四、应用场景

MMBT8550C在各种领域均展现出良好的应用潜力。以下为一些典型应用场景:

  1. 音频放大器:在音频电子设备中,MMBT8550C可用于信号放大,提供清晰、稳定的音频输出,常与NPN三极管互补使用。

  2. 开关电路:在低功率的开关电路设计中,作为开关元件控制各种负载,如 LED 驱动、继电器控制或其他负载。

  3. 模拟电路:作为增益级或驱动级的放大器,常用于模拟信号处理。

  4. 消费电子产品:在手机、平板、电脑等消费类电子产品的电源管理模块中,MMBT8550C可以用来进行电源开关控制与信号放大。

  5. 家用电器:用于各种家用电器的控制电路,提升设备的自动化与智能化水平。

五、优点与限制

优点:

  • 体积小、重量轻,便于设计布局。
  • 适用于各种便携式和紧凑型产品。
  • 提供稳定的性能与优良的功率处理能力。

限制:

  • 最大电流与电压限制有一定范围,对于高功率应用则需选择更高规格的器件。
  • 功率耗散能力若不合理使用,可能导致过热,从而影响可靠性。

六、结论

MMBT8550C 是一款性价比高、应用广泛的 PNP 三极管,适合各类电子产品中进行信号放大及开关控制。其在小型化、功率适中及使用便利性方面的优势,使其成为众多设计师和工程师的首选组件。在采用 MMBBT8550C 时,应充分了解其使用条件与限制,以保证最终产品的性能与稳定性。

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.