WMSIC Electronic Components

Hottech(合科泰) BC856BW

ModelBC856BW
PackageSOT-323
BrandHottech
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Hottech BC856BW
Type
HOTTECH
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HOTTECH
Electronic Component
BC856BW
Electronic Component
1
Package
SOT-323
Electronic Component
1 PNP
Electronic Component
Transistor(BJT)
Electronic Component
0.03g
Electronic Component
1
Electronic Component
BM0264463959
Transistor Type
PNP
Frequency(f T)
100MHz
Power Dissipation(Pd)
150mW
Electronic Component
Electronic Component
Electronic Component
3000
Collector Current(Ic)
100mA

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

BC856BW PNP型晶体管产品概述

一、产品定位与核心属性

BC856BW是合科泰(Hottech)推出的通用型小信号PNP晶体管,定位于低功耗、中等频率的放大与开关应用场景。作为PNP极性器件,其与NPN型晶体管互补,可实现电路的双向控制或放大,填补了低电流(≤100mA)、中等耐压(≤65V)PNP器件的市场需求,广泛适配便携电子、通信设备及工业控制等领域的基础电路设计。

二、关键电气参数详解

BC856BW的核心参数围绕“低功耗、高增益、中等耐压”设计,关键指标如下:

  1. 耐压性能:集射极击穿电压(Vceo)65V,确保器件在12V-48V直流电源场景下稳定工作;射基极击穿电压(Vebo)5V,需避免射基极反向过压(如基极电压高于发射极5V以上)。
  2. 电流特性:集电极连续电流(Ic)最大100mA,满足小功率负载驱动;集电极截止电流(Icbo)典型值15nA,静态功耗极低,适配电池供电设备;集射极饱和电压(VCE(sat))650mV(Ic=100mA、Ib=5mA时),开关损耗小,效率优势明显。
  3. 增益与频率:直流电流增益(hFE)范围220-475(VCE=5V、Ic=2mA时),覆盖不同放大倍数需求;特征频率(fT)100MHz,兼顾中低频信号放大与快速开关响应(如100MHz以内的信号处理)。
  4. 功率参数:最大耗散功率(Pd)150mW,无需额外散热装置,适配低功耗电路设计。

三、封装与物理特性

BC856BW采用SOT-323表面贴装封装,尺寸为1.6mm×0.8mm×0.8mm(典型值),引脚排列为:1脚基极(B)、2脚发射极(E)、3脚集电极(C)。封装具备以下特点:

  • 无铅环保设计,符合RoHS、REACH等国际环保标准;
  • 小体积高密度,可大幅降低PCB布局空间,适配便携设备的小型化需求;
  • 表面贴装工艺兼容自动化生产,提升批量制造效率。

四、典型应用场景

BC856BW的参数特性使其适配多类基础电路,典型应用包括:

  1. 低功耗放大电路:音频前置放大(如蓝牙耳机、便携音箱的信号放大)、传感器信号放大(如温度、压力传感器的微弱信号放大,利用高hFE提升信号幅度);
  2. 开关控制电路:小电流LED驱动(如指示灯、状态灯)、逻辑电平转换(PNP与NPN互补实现不同电压域的信号转换)、小型继电器驱动(负载电流≤100mA);
  3. 便携电子设备:智能手机、智能手环、蓝牙耳机等电池供电产品的电源管理回路(如过流保护、电压反馈);
  4. 工业控制电路:中等电压(≤65V)的信号放大或开关控制(如小型电机的低速控制、传感器信号处理)。

五、性能优势与使用注意事项

性能优势

  • 高增益宽范围:220-475的hFE覆盖从微弱信号放大到中等负载驱动的需求,无需频繁更换器件;
  • 低饱和压降:650mV的饱和压降降低开关损耗,提升电路效率;
  • 低静态功耗:15nA的Icbo减少待机电流,延长电池续航;
  • 小封装适配性:SOT-323封装适合高密度PCB设计,降低产品体积。

使用注意事项

  • 反向耐压限制:Vebo仅5V,避免射基极反向过压(如基极接高电平、发射极接地时,需确保基极电压≤5V);
  • 功率与电流限制:连续工作时Ic需控制在100mA以内,Pd≤150mW,避免过热损坏;
  • 静电防护:SOT-323封装无内置ESD保护,焊接时需接地,存储/运输需使用防静电包装。

六、品牌与品质保障

合科泰(Hottech)作为国内专业半导体器件厂商,BC856BW通过严格的生产工艺控制,确保批次一致性(参数离散性≤5%),符合IEC 60747-5等国际标准。产品广泛应用于消费电子、通信、工业控制等领域,具备稳定的性能表现与可靠的品质保障,适合量产需求。

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.