WMSIC Electronic Components

RUILON SMBJ30A

ModelSMBJ30A
PackageDO-214AA(SMB)
BrandRUILON
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
RUILON SMBJ30A
Type
RUILON
Minimum package
3000

Technical parameters

Electronic Component
RUILON
Electronic Component
SMBJ30A
Electronic Component
1
Package
DO-214AA(SMB)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.232g
Electronic Component
1
Electronic Component
BM0227695224
Operating Temperature
55℃~+150℃
Voltage
48.4V
Electronic Component
IEC 61000-4-4;IEC 61000-4-2
Current(Ir)
1uA
Voltage(VBR)
38.3V
Electronic Component
3000

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

SMBJ30A 产品概述 — RUILON (瑞隆源)

一、产品简介

SMBJ30A 是 RUILON(瑞隆源)推出的一款单向 TVS(二极管瞬态抑制器),封装为 DO-214AA(SMB),用于吸收瞬态过电压,保护敏感电子元件免受雷击、开关电弧和静电放电等瞬变冲击。该器件适合电源、通信设备、工业控制和车载电子等场景的浪涌与 ESD 抑制。

二、主要电气参数

  • 极性:单向(适用于直流或单向稳压场景,交流场合应选用双向或反向并联方案)
  • 反向截止电压 Vrwm:30 V(推荐在此电压以下长期工作)
  • 击穿/触发电压 Vbr:38.3 V(典型)
  • 钳位电压 Vc(Ipp):48.4 V(在峰值脉冲电流条件下的钳位值)
  • 峰值脉冲电流 Ipp:12.4 A(10/1000 μs 波形)
  • 峰值脉冲功率 Ppp:600 W(按 10/1000 μs 标准波形)
  • 反向电流 Ir:1 μA(常温下在 Vrwm 条件的漏电流)
  • 工作温度范围:-55 ℃ 至 +150 ℃
  • 防护等级:符合 IEC 61000-4-2(ESD)、IEC 61000-4-4(EFT)
  • 封装:DO-214AA(SMB),便于表面贴装和波峰/回流焊工艺

三、典型应用场景

  • 24V/30V 等直流电源轨的浪涌保护(工业控制、楼宇设备)
  • 通信接口、继电器或电磁阀驱动电路的抑制突波
  • 电源输入处作为一级保护器件,配合保险与滤波电路提高系统可靠性
  • 满足 IEC ESD/EFT 要求的产品设计中作为板级保护器件

四、选型与使用建议

  • Vrwm 的选择:常规工作电压应低于 Vrwm,建议 Vrwm 略高于系统最大稳态电压以避免误触发。SMBJ30A 的 30 V Vrwm 适合 24 V 级别系统。
  • 钳位能力:钳位电压 48.4 V 表示在脉冲到达时被保护节点将被钳制在该电平附近,需确保被保护元件能承受该钳位电压。
  • 浪涌能量管理:Ppp=600 W(10/1000 μs)和 Ipp=12.4 A 为单次脉冲能力参考,多次冲击或更苛刻波形需参考制造商沿用寿命数据或采取并联/串联方案以分担能量。
  • 极性注意:单向器件在直流或参考地明确时使用,若为交流或两极可能出现反向过压,应使用双向 TVS。
  • 热管理与布局:靠近需要保护的接口或电源输入放置,确保良好散热路径,避免长走线引入额外感抗。大电流脉冲会产生热量,合理布线与散热有利于提高击穿寿命。

五、封装与可靠性

SMB(DO-214AA)封装适合中等功率板级保护,支持常见的回流焊与手工焊接工艺。工作温度范围宽(-55 ℃ ~ +150 ℃),适用于工业与车规附近应用;IEC 61000 系列防护等级表明其能有效抵御常见的 ESD 与快速瞬变脉冲冲击。

六、小结与推荐

SMBJ30A(RUILON)凭借 30 V 的反向截止电压、600 W 的 10/1000 μs 峰值功率和 48.4 V 的钳位电压,适合用于 24 V 级电源与常规工业、通信设备的浪涌保护。设计时应关注 Vrwm 与系统工作电压匹配、钳位电压对下游元件的影响以及脉冲能量需求;对更高能量或多次冲击场景,可考虑并联多只或采用更高能量等级的 TVS。若需进一步的电气曲线(如 V-I 曲线、结电容、脉冲寿命数据)或封装尺寸图纸,建议参照 RUILON 的详细产品数据手册。

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.