WMSIC Electronic Components

TDD SS56BF

ModelSS56BF
PackageSMBF
BrandTDD
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 Option 171385

Available for RFQ

Technical data

Product details

13 specifications

Core information

Product name
TDD SS56BF
Type
TDD
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
TDD
Electronic Component
SS56BF
Electronic Component
1
Package
SMBF
Electronic Component
0.11g
Electronic Component
1
Electronic Component
BM0266040353
Electronic Component
Electronic Component
Electronic Component
5000

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

SS56BF 表面贴装整流二极管产品概述

一、产品基本信息

SS56BF是台冠电子(TDD)推出的中功率表面贴装整流二极管,型号命名规则清晰:「SS」代表整流管类型,「5」对应5A连续整流电流,「6」对应60V反向耐压,「BF」为封装标识(SMBF)。该器件专为自动化贴装工艺设计,适配工业、车载等宽温应用场景,兼顾效率与可靠性。

二、核心电性能参数详解

SS56BF的参数针对实际负载场景优化,关键指标如下:

  1. 正向压降(Vf):700mV@5A(直流正向电流下的导通损耗),低压降可减少电源发热,提升转换效率;
  2. 直流反向耐压(Vr):60V(反向截止电压,确保器件不被击穿),适配低压电源系统;
  3. 连续整流电流(IF(AV)):5A(25℃环境下的最大连续正向电流),支持中功率负载需求;
  4. 反向漏电流(Ir):500μA@60V(25℃下反向电压60V时的漏电流),低漏电流降低反向损耗,提升电源稳定性;
  5. 工作结温范围:-55℃~+150℃,覆盖工业级宽温环境,可稳定工作于极端温度场景;
  6. 非重复峰值浪涌电流(Ifsm):150A(单次10ms浪涌下的耐受值),应对电源启动、负载突变等瞬间浪涌,增强系统可靠性。

三、机械与封装特性

SS56BF采用SMBF表面贴装封装,符合国际电子封装标准,核心特性:

  • 封装尺寸:长×宽×高≈8.0mm×5.0mm×2.6mm,引脚间距适配常规贴装设备;
  • 散热设计:封装底部自带散热焊盘,可通过PCB铜箔快速导出热量,满足5A连续电流的散热需求;
  • 贴装兼容性:支持回流焊、波峰焊等自动化生产工艺,适配高密度PCB布局。

四、主要应用场景

SS56BF因宽温、高可靠特性,广泛应用于以下领域:

  1. 开关电源:低压输出电源(如12V/5A、24V/3A)的次级整流、续流二极管;
  2. 车载电子:车载充电器、DC-DC转换器(12V转5V/10A)、车载音响电源等,适配-40℃~+85℃车载环境;
  3. 工业控制:PLC、伺服驱动器、变频器的电源整流模块,应对工业现场的宽温、振动环境;
  4. 消费电子:大功率笔记本电源、LED驱动电源(如100W LED电源)的整流电路;
  5. 通信设备:基站电源、路由器电源的次级整流,保障设备稳定运行。

五、产品优势与设计注意事项

(一)核心优势

  1. 宽温可靠性:-55℃~+150℃的工作结温,超越常规商用级器件,适配极端环境;
  2. 高效低耗:700mV低导通压降,5A电流下损耗仅3.5W,减少散热设计压力;
  3. 浪涌耐受:150A非重复浪涌电流,有效抑制电源启动浪涌,降低器件损坏风险;
  4. 贴装便捷:SMBF封装适配自动化生产,节省PCB空间,提升生产效率。

(二)设计注意事项

  1. 散热设计:5A连续电流下,需确保PCB散热铜箔面积≥10cm²(建议在焊盘周围增加铜箔),环境温度超过100℃时需降额使用;
  2. 电压裕量:实际应用中反向电压需低于60V,建议留20%~30%裕量(如最大反向电压不超过48V);
  3. 降额曲线:结温每升高1℃,连续电流需降额约0.4%(150℃时降额至约3A);
  4. 浪涌防护:长期频繁浪涌场景需额外并联TVS管,进一步提升系统可靠性。

六、典型应用示例

以12V/5A车载充电器为例:

  • 输入:12V车载电源;
  • 电路:采用Buck拓扑,SS56BF作为续流二极管,配合电感、电容实现5V/5A输出;
  • 优势:宽温范围适配车载-40℃~+85℃环境,150A浪涌耐受应对充电器启动瞬间的浪涌,低导通压降提升充电效率。

SS56BF凭借平衡的性能与可靠性,成为中功率整流场景的高性价比选择。

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.