WMSIC Electronic Components

RUILON 2R090SB-8 2R090SB

Model2R090SB-8
PackageSMD,8x6mm
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
RUILON 2R090SB-8
Type
RUILON
Minimum package
500 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RUILON
Electronic Component
2R090SB-8
Electronic Component
1
Package
SMD,8x6mm
Electronic Component
2
Electronic Component
(GDT)
Electronic Component
±20%
Electronic Component
1.924g
Electronic Component
6mm
Electronic Component
1
(φD)
8mm
Electronic Component
BM0258779554
Operating Temperature
40℃~+90℃
Capacitor
1.5pF
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.

2R090SB-8 产品概述

2R090SB-8 是 RUILON(瑞隆源)推出的一款 SMD 型号气体放电管(GDT),面向需要大能量冲击保护且对线路电容敏感的应用场景。该器件为双极(两端)结构,额定直流击穿电压 90V、脉冲放电能力高达 10kA,直流与冲击耐压、低极间电容、小尺寸封装等特性,使其在通信、以太网/PoE、安防与工业接口等场合具有明显优势。

一 特性亮点

  • 额定直流击穿电压(Vdc)90V(标称),精度 ±20%(实际工作值请按数据手册或实测值参考)。
  • 高脉冲放电能力:瞬态放电电流可达 10kA(厂方测量条件下),对雷击与浪涌脉冲能量吸收能力强。
  • 极间电容小:典型值 1.5pF,对高速信号线影响极小,适合对带宽要求高的线路保护。
  • 冲击击穿电压(Vimp)500V(标称),在短时脉冲下有良好耐受能力。
  • 工作温度范围宽:-40℃ 至 +90℃,适应工业级环境要求。
  • 非极性结构(双端/两极),安装方向灵活,支持 SMD 表面贴装工艺。
  • 封装紧凑,标称 8×6mm(φD 8mm、长度 6mm),便于在 PCB 上靠近接口处布局。

二 主要技术参数(概要)

  • 型号:2R090SB-8
  • 品牌:RUILON(瑞隆源)
  • 极数:2(双端)
  • 直流击穿电压(Vdc):90V(±20%)
  • 脉冲放电电流:10kA(脉冲峰值)
  • 极间电容:1.5pF(典型)
  • 冲击击穿电压(Vimp):500V
  • 工作温度:-40℃ ~ +90℃
  • 外形/封装:SMD,8×6mm(φ8×6mm)
  • 外观:白色

三 典型应用场景

  • 以太网/PoE 端口保护:对 PoE(供电以太网)及网口芯片提供入侵浪涌保护,同时低电容特性保证信号完整性。
  • 电信/宽带设备:DSL、光纤接入设备和终端设备的线端浪涌防护。
  • 安防与视频监控:摄像头信号线和供电线的雷击、开关冲击保护,保证视频质量与设备安全。
  • 工业控制接口:现场 I/O、传感器线及控制总线的过电压防护,适合恶劣电磁环境。
  • 电源输入与电池系统:低压直流系统的瞬态保护(在额定电压范围内)。

四 外形与封装说明

2R090SB-8 为表面贴装式气体放电管,外观小巧(8×6mm),便于在 PCB 上靠近接口或设备入线端放置,以缩短流向接地的回路长度。因其为双端器件,通常以两端直接连接被保护线路与参考地或对称线路上。封装材料与焊盘布局应遵循制造商推荐,以保证可靠焊接与散热。

五 安装与焊接建议

  • 布局位置:应尽可能靠近被保护的端口或输入点放置,并保证到地或参考回路的回流路径尽量短且低阻抗。
  • 焊接工艺:支持常见的回流焊工艺,建议按照厂方提供的回流曲线执行(峰值温度与保温时间以制造商数据为准)。避免超出推荐温度导致内部气体或封装受损。
  • 清洗与处理:焊接后可按常规清洗工艺处理;避免强烈机械冲击或重复触发放电测试,以免降低器件寿命。
  • 焊盘设计:推荐遵循厂方封装图纸,确保良好焊点与可靠电气连接。

六 设计与选型建议

  • 多级防护策略:气体放电管响应能量大但响应速度相对较慢,建议与 TVS 等固态器件并联构成复合防护方案:TVS 负责快速钳位、GDT 吸收大能量冲击,兼顾响应与能量承受。
  • 电压匹配:直流击穿电压为 90V(±20%),在选型时需考虑电路工作电压及容许的过压范围,避免在正常工作条件下发生误触发。
  • 脉冲规范:厂方给出的脉冲放电能力(10kA)通常基于标准波形(例如 8/20μs)测量,具体应用中请参考数据手册或与厂商确认测试条件。
  • 低电容优势:对于高速信号(如千兆以太网、视频传输)场合,1.5pF 的极间电容能最大限度降低对传输性能的影响,是选择保护器件时的重要参考指标。

七 可靠性与使用注意事项

  • 避免频繁击穿:气体放电管在反复击穿后性能会衰减,设计中应保证击穿发生率低并合理分配能量。
  • 测试与验证:在产品设计验证阶段,进行实际浪涌/冲击测试以确认保护策略与器件能量匹配,必要时选择更高能量等级的器件。
  • 环境适应:工作温度范围 -40℃ 到 +90℃,在极端环境下使用时需验证长期稳定性。

总结:2R090SB-8 以其 90V 的直流击穿等级、10kA 的瞬态放电能力和极低的极间电容,适合对带宽与抗浪涌能力同时有要求的保护场合。合理的 PCB 布局与多级保护设计能发挥其最佳防护效果;在实际应用中,请参考瑞隆源提供的完整数据手册与测试条件以获得准确的设计依据。

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