WMSIC Electronic Components

DOWO P6SMB20A

ModelP6SMB20A
PackageSMB(DO-214AA)
BrandDOWO
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
DOWO P6SMB20A
Type
DOWO
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
DOWO
Electronic Component
P6SMB20A
Electronic Component
1
Package
SMB(DO-214AA)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.193g
Electronic Component
1
Electronic Component
BM0264215321
Operating Temperature
55℃~+150℃
Voltage
27.7V
Current(Ir)
1uA
Voltage(VBR)
19V
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.

P6SMB20A瞬态抑制二极管产品概述

一、产品定位与核心价值

P6SMB20A是东沃(DOWO)品牌推出的单向瞬态抑制二极管(TVS),采用SMB(DO-214AA)贴片封装,专为电子电路的瞬态过压保护设计。其核心功能是在遇到雷击感应、电源开关浪涌、静电放电(ESD)等瞬态脉冲时,快速从高阻态转为低阻态,钳位电压并泄放浪涌能量,避免后级敏感元器件(如IC、传感器)因过压损坏,广泛适配工业、消费电子、汽车等领域的中低压电路保护需求。

二、关键性能参数解析

P6SMB20A的参数设计针对中低压系统的典型浪涌场景,核心参数可分为电压、脉冲承载、环境适应性三类:

1. 电压类参数

  • 反向截止电压(Vrwm):17.1V
    静态工作时反向不导通的最大电压,需高于电路最大工作电压(如12V/15V系统),确保不影响电路正常运行。
  • 击穿电压(Vbr):19V
    瞬态电压超过19V时二极管启动导通,是浪涌防护的“启动阈值”。
  • 钳位电压(Vc):27.7V
    10/1000μs标准脉冲下的最大电压,需低于后级元器件耐压值,实现有效保护。

2. 脉冲承载能力

  • 峰值脉冲功率(Ppp):600W@10/1000μs
    10/1000μs为行业标准浪涌波形(上升10μs、半峰值1000μs),600W功率可承受中等强度脉冲(如电源开关浪涌、近距离雷击感应)。
  • 峰值脉冲电流(Ipp):21.66A
    对应600W功率下的峰值泄流电流,反映二极管快速导地的能力。

3. 环境与静态参数

  • 反向漏电流(Ir):1μA
    Vrwm=17.1V时的反向漏电流极小,不增加电路静态功耗。
  • 工作温度:-55℃~+150℃
    宽温设计适配极端环境(如工业现场、车载高温区),可靠性符合工业级要求。

三、封装与可靠性设计

P6SMB20A采用SMB(DO-214AA)贴片封装,具有三大优势:

  1. 体积紧凑:尺寸约2.2mm×3.5mm×1.5mm,适配高密度PCB布局(如智能手机、智能穿戴)。
  2. 工艺兼容:支持回流焊、波峰焊等SMT自动化生产,焊接可靠性高。
  3. 散热优化:封装结构强化了散热路径,宽温下机械稳定性良好,避免高温失效。

四、典型应用场景

结合参数特性,P6SMB20A主要应用于以下场景:

  1. 消费电子:手机USB接口、平板HDMI端口保护,防止插拔浪涌或静电损坏。
  2. 工业控制:PLC模块、12V/24V传感器电源线路保护,应对现场电磁干扰。
  3. 汽车电子:车载12V电源系统、显示屏接口保护,适配汽车级温度环境。
  4. 通信设备:路由器以太网端口、基站电源模块保护,抵御雷击感应浪涌。

五、选型与使用注意事项

  1. 选型匹配:
    • 电路最大工作电压≤17.1V(如12V系统适配性最佳);
    • 浪涌功率需求≤600W,若脉冲更强需并联多颗或选更高功率型号。
  2. 极性确认:
    为单向TVS,SMB封装色环端通常为阴极,需接高压侧或地(需参考 datasheet 确认)。
  3. 布局优化:
    靠近被保护元器件(减少引线电感),泄流路径(接地端)需低阻抗,提升响应速度。

P6SMB20A凭借平衡的电压参数、可靠的脉冲承载能力及宽温封装,成为中低压电路瞬态保护的高性价比选择,可有效提升电子设备的抗浪涌性能与使用寿命。

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.