WMSIC Electronic Components

PANJIT P4SMA18CA_R1_00001

ModelP4SMA18CA_R1_00001
PackageSMA
BrandPANJIT
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
PANJIT P4SMA18CA_R1_00001
Type
PANJIT
Minimum package
1800 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
PANJIT
Electronic Component
P4SMA18CA_R1_00001
Electronic Component
1
Package
SMA
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.092g
Electronic Component
1
Electronic Component
BM0264356037
Operating Temperature
55℃~+150℃
Voltage
25.2V
Electronic Component
IEC 61000-4-2
Current(Ir)
1uA
Voltage(VBR)
17.1V

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

P4SMA18CA_R1_00001 产品概述

P4SMA18CA_R1_00001 是 PANJIT(强茂)推出的一款高可靠性的双向瞬态电压抑制(TVS)二极管,采用 SMA(DO‑214AC)封装,专为尖脉冲与静电放电(ESD)等瞬态过压事件提供快速、低电阻的钳位保护。该器件在工业、通讯和汽车电子等对瞬态扰动要求严格的场景中,能够有效保护敏感半导体元件与接口线路,延长系统可靠性与抗冲击能力。

一、主要规格与电气特性

  • 型号:P4SMA18CA_R1_00001
  • 极性:双向(Bi‑Directional)——可对正负极性瞬态同时钳位,适用于无固定极性的信号或电源回路
  • 反向截止电压 VRWM:15.3 V(工作电压下的稳态最大反向电压)
  • 击穿电压 VBR:17.1 V(器件进入雪崩区的典型电压)
  • 钳位电压 Vc:25.2 V(在峰值脉冲电流条件下的钳位电压)
  • 峰值脉冲电流 Ipp:17 A(对应上述钳位电压下的脉冲电流能力)
  • 峰值脉冲功率 Ppp:400 W(瞬态能量吸收能力)
  • 反向电流 Ir:典型 1 μA(在 VRWM 条件下,保证低漏电流)
  • 工作温度范围:-55 ℃ 至 +150 ℃
  • 防护等级:符合 IEC 61000-4-2 静电抗扰标准(用于 ESD 防护场合)
  • 封装:SMA(表面贴装,适合自动化贴装与回流焊)

二、核心特性与优势

  • 高能量吸收:400W 峰值脉冲功率和 17A 峰值电流,使器件能承受工业级瞬态浪涌与尖脉冲事件,避免下游电路损坏。
  • 双向保护:在正负方向均能提供对称钳位,适用于交流信号、接口对称保护或易反向的电源线路。
  • 低漏电流与稳定钳位:VRWM 15.3V 与低 Ir(1 μA)保证在正常工作电压下对电路影响极小,同时在过压瞬态中实现快速钳位到 25.2V。
  • 宽温度适应性:-55 ℃ 至 +150 ℃ 的工作范围适合工业、汽车及恶劣环境应用。
  • 标准封装:SMA(DO‑214AC)封装便于自动贴装和热量散逸,适合空间受限但需可靠保护的 PCB 设计。

三、典型应用场景

  • 通信接口保护:以太网、串行总线、USB 扩展接口等易受 ESD/浪涌影响的 I/O 端口。
  • 电源轨与局部稳压保护:适用于 12V 左右系统或需要在 15V 范围内稳态工作的电源节点的浪涌保护。
  • 工业控制与自动化:PLC、传感器接口、现场总线设备等需抗干扰和抗浪涌设计的场合。
  • 汽车电子(非高压车载总线):在符合其电压和环境要求的子系统中作为过压保护器件。
  • 消费电子与网络设备:路由器、交换机、基站等要求高可靠接口保护的设备。

四、设计与布局建议

  • 放置位置:TVS 器件应尽量靠近需要保护的输入/输出连接器或晶片管脚,缩短信号/电流返回路径以降低感抗引起的尖峰电压。
  • 地线处理:对于单端地线系统,建议使用低阻抗、短回流路径的地平面;对于敏感信号,考虑单点接地或局部地环路以减少耦合噪声。
  • 散热与焊接:SMA 封装在回流焊工艺中表现良好,但应遵循厂商的焊接温度曲线,避免超温影响可靠性。
  • 选型原则:选择 VRWM 要大于或等于系统最大工作电压,但留有适当余量;若系统运行电压接近 VRWM,应考虑更高电压等级的 TVS。

五、可靠性与使用注意

  • 器件符合工业级温度与机械封装规范,适合长期稳定运行。
  • 在反复遭受高能脉冲冲击后,TVS 可能因吸收能量而退化,请在关键系统中考虑冗余或易维护设计。
  • 使用前请参考 PANJIT 官方规格书获取更详细的典型特性曲线(如 I‑V 曲线、脉冲测试条件与封装机械尺寸)以确保与系统配合最佳。

P4SMA18CA_R1_00001 以其高吸收能力、双向钳位与宽温度适应性,为需要可靠瞬态保护的各类电子系统提供了一种稳健的解决方案。若需进一步的电气特性曲线、封装尺寸图或样片采购信息,可直接联系 PANJIT 或供应渠道获取完整数据手册与测试报告。

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.