WMSIC Electronic Components

ROHM 2SD1781KT146R

Model2SD1781KT146R
PackageTO-236-3(SOT-23-3)
BrandROHM
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

20 specifications

Core information

Product name
ROHM 2SD1781KT146R
Type
ROHM
Unit
Electronic Component
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
ROHM
Electronic Component
2SD1781KT146R
Electronic Component
1
Package
TO-236-3(SOT-23-3)
Electronic Component
1 NPN
Electronic Component
Transistor(BJT)
Electronic Component
0.034g
Electronic Component
1
Electronic Component
BM0257641442
Operating Temperature
55℃~+150℃
Transistor Type
NPN
Frequency(f T)
150MHz
Power Dissipation(Pd)
200mW
Electronic Component
Electronic Component

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:2SD1781KT146R NPN三极管

一、基本信息

2SD1781KT146R是一款高性能的NPN型晶体管,引入了ROHM(罗姆)品牌的优质制造工艺,广泛应用于各种电子设备中。该器件的额定功率为200mW,极大地满足了低功耗电路设计的需求。其集电极电流(Ic)最大为800mA,适合于高负载的电流放大应用。

二、主要参数

  • 集电极电流 (Ic): 800mA,能够承受的最大电流使得该晶体管在各种负载条件下均表现出色。
  • 集射极击穿电压 (Vce): 32V,提供了良好的电压安全余量,适合于需要稳定工作于高电压环境的电路。
  • 功率 (P_max): 200mW,特别适用于对功率消耗有严格限制的应用场景。
  • 频率响应: 150MHz,能够支持快速信号处理,适合用于高频应用中。
  • 工作温度: 可在高温环境下使用,最高工作温度达到150°C,确保器件在苛刻条件下的稳定性和可靠性。

三、电气特性

该晶体管在不同的电流和电压条件下,展示了良好的性能。例如,在Ic为50mA和500mA时,Vce饱和压降最大为400mV至500mV,显示了其优良的开关特性。同时,其集电极截止电流(ICBO)最大值为500nA,表明该器件的漏电流非常小,有助于提高整个电路的性能和效率。

四、增益特性

在不同的Ic和Vce条件下,2SD1781KT146R的直流电流增益(hFE)最小值为180 @ 100mA、3V。这一高增益数值,表明该晶体管能够在小信号输入下,实现较大的输出信号,适合于放大器和开关电路等应用。

五、结构与封装

此款晶体管采用SMT3封装形式,封装类型为TO-236-3 (也称为SOT-23-3),具有小型化和轻量化的特点,非常适合于现代电子产品的小型化设计需求。表面贴装型的设计使得在PCB板上布线更加简便,同时便于实现自动化贴片生产,提高了生产效率。

六、应用场景

2SD1781KT146R广泛应用于多个电子领域,包括但不限于:

  • 音频放大器: 利用其高增益特性,能够创建高效且音质优良的音频放大器电路。
  • 开关电路: 由于其良好的开关速度和低Vce饱和压降,非常适合用作开关元件。
  • 脉冲宽度调制(PWM)应用: 在电机驱动、电源管理等领域,通过PWM信号控制其导通与关断。
  • 信号处理: 高频响应使得该器件适合用于无线通信和信号处理电路。

七、总结

总的来说,2SD1781KT146R是一款高效能的NPN三极管,凭借其高集电极电流、低功耗、高频响应和耐高温特性,使其在多种电子应用中成为理想选择。ROHM提供的这一产品,不仅在技术规格上展示出色,也在市场竞争中有着绝对的优势,为电子设计师提供了灵活的解决方案,是提升电路性能的理想元件。

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.