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SI-51
  • SI-51

SI-51

Brand: Sapphire Instruments

Origin: Taiwan, China

SI-51 是 Sapphire 三华科技高压有源差分探头，带宽 DC~50MHz（-3dB），上升时间
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Sapphire 9101 High-Voltage Differential Probe Datasheet.pdf Sapphire 9101 High-Voltage Differential Probe Datasheet.pdf
Overview

Sapphire SI-51 低压有源差分探头，DC~DC~50 MHz (-3dB)，1/100 衰减，最大差模 ±700 V (DC+AC Peak) / 600 Vrms，共模 ±1400 V (DC+AC Peak) / 600 Vrms，输入阻抗 4，精度 ±1 %。

优势应用：SI-50 的高压版（1/100）；噪声低至 0.3mVrms，适合高压侧微弱纹波测量

资料来源：(P2) 原厂规格书 Spec_ SI-51.pdf（本地 SAPPHIRE 目录）

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Specifications
指标名称 数值
型号 SI-51
类型 高压有源差分探头（单端/差分两用，需供电）
带宽 DC ~ 50MHz (-3dB)
上升时间
衰减比 1/100
直流精度 ±1%
输入阻抗 4MΩ // 7pF（每端对地）
安全类别 CAT II
最大差模电压 ±700V（DC+AC 峰值）/ 600Vrms
最大共模电压 ±1400V（DC+AC 峰值）/ 600Vrms
绝对最大电压 ±1400V（DC+AC 峰值）/ 600Vrms（任一输入端对地）
输出电压摆幅 ±7V（5kΩ 负载）
输出偏移（典型）
输出源阻抗 50Ω
本底噪声（典型） 0.3mVrms
共模抑制比（典型） -90dB @60Hz；-55dB @1MHz
供电方式 电源适配器（6VDC/90mA 或 9VDC/70mA）/ 可拆卸电池盒（4×AA）/ 电源引线
BNC 线长 125cm
外形尺寸 111 × 22 × 14 mm
重量 300g
工作温度 -10 ~ +40℃；存储 -30 ~ +70℃
资料来源 Sapphire《SI-51 Specifications (51ds.pdf)》
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* Specifications are subject to change without notice.