

PML 711/721高阻抗探头


PML 50Ω系探头
■ 2.5mm探头芯片
■ 可连接于0.5mm~1.27mm间距的管脚之间
■ 可换为弹簧芯片等
附件例
<注意>附件可能会因规格变更而有所差异
- 探头主体
- 说明书
- 弹簧芯片 0.5mm (探头前端)
- CuBe探头芯片 0.5mm (探头前端)
- 4种颜色 各3处
- 接地引脚 11cm
- 接地板 2.5
- 铜箔垫片
- 绝缘子帽 2.5
- 防护帽 2.5
- IC-CAP 0.5 ~ 1.27mm 间距
- 弹簧卡钩 2.5
- 接地弹簧 2.5
- PCB适配器套件 2.5
- 双脚定位器
- 调节工具
(非50Ω系探头附件)
The compact design of the PML probe series with only 2.5mm housing diameter at the probe tip is ideal formeasurements on the smallest components and hard-to-reach measuring points, as it allows a far betterview of the component under test than conventional 5mm probe housing designs. The actual probe tip isonly 0.5mm thick, gold plated and spring loaded.
Individual contacting with high signal fidelity in different applications is ensured with the replaceable springtip and a variety of contacting accessories. Especially for RF measurements at the IC a shortest possibleground connection is necessary. BNC and PCB solder-in solutions are available. Conventional adaptationscause additional inductance and resonance into the measurement circuit due to long leads and thus distortthe measurement signal. This is where the innovative IC contacting system of the PML series, consisting of 5different IC caps for pin spacing from 0.5mm to 1.27mm, the innovative ground blade and the copper padfor gluing onto the IC, offers the ideal solution for short-circuit-proof, reproducible and accuratemeasurements.

采用了IC-CAP和接地板
的IC管脚探测

双脚定位器(893-250-001)
特性图
PML 711 衰减特性

PML 711 输入阻抗特性

附件


关于探头校准
探头建议在校准后再使用。
为了与示波器进行匹配、无源探头上带有用于调节的微调电容器。
如果不实施这个调节、上升沿和下降沿的波形可能看上去会变圆、引起过冲或下冲。这种波形无法正确测试脉冲窄幅的信号振幅等、所以务必进行调节。
此外、如果确定所用示波器的通道和使用探头的通道、从下次测试起无需重新调节即可使用。

无源探头的调节部位示例

探头调节与波形的关系
(第1层)调节后的正常波形
(第2层)过补偿波形
(第3层)补偿不足波形
规格
型号 | 减衰比 | 输入RC | 频率带宽〔MHz〕 | 适合输入容量〔pF〕 | 测试仪侧输入 阻抗〔Ω〕 | 最大输入电压 | 电缆长度〔m〕 | |
---|---|---|---|---|---|---|---|---|
R〔Ω〕 | C〔pF〕 | |||||||
PML 701 PML 701-RO |
1:1 | - | 39 (探头单体) |
38 | 10~25 | 1M | 30Vrms、 60V DC |
1.3 |
PML 711A PML 711A-RO |
10:1 | 10M | 9.5 | 500 | 10~25 | 1M | 300V(CATⅡ) | 1.3 |
PML 712 PML 712-RO |
10:1 | 10M | 11.5 | 350 | 10~25 | 1M | 300V(CATⅡ) | 2 |
PML 713 PML 713-RO |
10:1 | 10M | 14.5 | 250 | 10~25 | 1M | 300V(CATⅡ) | 3 |
PML 721 PML 721RO |
20:1 | 20M | 5.6 | 500 | 10~25 | 1M | 300V(CATⅡ) | 1.2 |
PML 751 PML 751-RO |
10:1 | 500 | 2 | 1,500 | 10~25 | 50 | 12V(DC+ACpeak) | 1.3 |
PML 791 PML 791-RO |
100:1 | 5k | 2.6 | 1,500 | 10~25 | 50 | 30V(DC+ACpeak) | 1.3 |
* 型号的“-RO”标示表示支持ReadOut(读出)
* 所有探头的测试仪连接侧连接器均为BNC型
* PML751、791支持特订、可改为SMA连接器
* 支持特订、电缆长度也可更改