英国PEM CWTUM-F CWTUMHF-F罗氏线圈，具有BNC输出接口，可连接到大多数类型的示波器或数据采集设备。CWTUM-F(1.3mm厚度)和静电屏蔽版本，CWTUMHF-F(1.7mm厚度)是PEM CWT Ultra-mini系列的扩展。新颖的机械结构减小了整体罗氏线圈尺寸，从而减小探头对被测电路的影响。简化了密集电力电子电路中的测量。
一、主要特点
1. 新颖的“叉形”结构
线圈长度为55mm
2. 宽工作温度-40°C至+125°C
3. 额定电流从60Apk到12kApk
4. 线圈绝缘1.3kVpk
5. 峰值di/dt能力高达100kA/us
6. 薄型1.2mm横截面直径
高频带宽(-3dB)20MHz
7. 屏蔽“HF”版本，横截面直径为1.7mm
出色的耐压能力，高频带宽(-3dB)30MHz
二、产品应用
1. 电力电子电路中的开关电流波形，例如：
（1）小至TO-220、D²PAK的MOSFET或IGBT功率器件或其他SMT功率器件
（2）测量半导体中的功率损耗
（3）监测小型电感器、电容器、缓冲电路等中的电流
2. 在存在大直流电流的情况下测量小交流电流（例如监测电容器纹波）
3. 电源转换器开发和诊断
4. 测量从工频到射频应用中的高频正弦电流、脉冲电流或瞬态电流
三、标准与合规性
1. CE 标志
2. 符合 EMC EN61326-1
3. 符合 IEC 61010-1;IEC 61010-2-032 标准
4. PEM Ltd 已通过 ISO9001：2015 标准认证
5. 专利产品
四、产品尺寸
| 型号 | 灵敏度 (mV/A) | 峰值电流 (A) | 峰值di/dt (kA/μs) | 噪声 (mVp-p) | 衰减 (%/ms) | 低频带宽 (-3dB)Hz | 高频带宽 (-3dB)MHz |
| CWTUM-F(1.3mm厚度) | 55mm线长 | ||||||
| CWTUM-F/03 | 100 | 60 | 4.0 | 20 | 85 | 150 | 20 |
| CWTUM-F/06 | 50 | 120 | 8.0 | 15 | 78 | 100 | 20 |
| CWTUM-F/1 | 20 | 300 | 20 | 15 | 53 | 50 | 20 |
| CWTUM-F/3 | 10 | 600 | 40 | 15 | 19 | 20 | 20 |
| CWTUM-F/6 | 5.0 | 1.2k | 80 | 15 | 9.3 | 10 | 20 |
| CWTUM-F/15 | 2.0 | 3.0k | 100 | 12 | 4.6 | 5.0 | 20 |
| CWTUM-F/30 | 1.0 | 6.0k | 100 | 12 | 2.4 | 2.6 | 20 |
| CWTUM-F/60 | 0.5 | 12.0k | 100 | 12 | 1.2 | 1.2 | 20 |
| CWTUMHF-F(抗干扰/高频型号-1.7mm厚度) | 55mm线长 | ||||||
| CWTUMHF-F/03 | 100 | 60 | 4.0 | 20 | 85 | 150 | 30 |
| CWTUMHF-F/06 | 50 | 120 | 8.0 | 15 | 78 | 100 | 30 |
| CWTUMHF-F/1 | 20 | 300 | 20 | 15 | 53 | 50 | 30 |
| CWTUMHF-F/3 | 10 | 600 | 40 | 15 | 19 | 20 | 30 |
| CWTUMHF-F/6 | 5.0 | 1.2k | 80 | 15 | 9.3 | 10 | 30 |
| CWTUMHF-F/15 | 2.0 | 3.0k | 100 | 12 | 4.6 | 5.0 | 30 |
| CWTUMHF-F/30 | 1.0 | 6.0k | 100 | 12 | 2.4 | 2.6 | 30 |
| CWTUMHF-F/60 | 0.5 | 12.0k | 100 | 12 | 1.2 | 1.2 | 30 |
| 型号 | 灵敏度 (mV/A) | 峰值电流 (A) | 峰值di/dt (kA/μs) | 噪声 (mVp-p) | 衰减 (%/ms) | 低频带宽 (-3dB)Hz | 高频带宽 (-3dB)MHz | |
| CWT-经典款系列 | 300mm线圈 | 700mm线圈 | ||||||
| CWT/3N | 20 | 600 | 2.0 | 14 | 0.9 | 1.0 | 10 | 5 |
| CWT/6 | 5.0 | 1.2K | 8.0 | 12 | 0.9 | 1.0 | 16 | 10 |
| CWT/15 | 2.0 | 3.0K | 20 | 7.0 | 0.7 | 0.8 | 16 | 10 |
| CWT/30 | 1.0 | 6.0K | 40 | 3.5 | 0.5 | 0.6 | 16 | 10 |
| CWT/60 | 0.5 | 12K | 40 | 3.0 | 0.35 | 0.4 | 16 | 10 |
| CWT/150 | 0.2 | 30K | 40 | 3.0 | 0.2 | 0.2 | 16 | 10 |
| CWT/300 | 0.1 | 60K | 40 | 3.0 | 0.1 | 0.1 | 16 | 10 |
| CWTHF-抗干扰/高频型号 | ||||||||
| CWTHF/015 | 200 | 30 | 2.0 | 15 | 85 | 150 | 20 | 8 |
| CWTHF/03 | 100 | 60 | 4.0 | 11 | 78 | 105 | 20 | 8 |
| CWTHF/06 | 50 | 120 | 8.0 | 8.0 | 70 | 80 | 20 | 10 |
| CWTHF/1 | 20 | 300 | 20 | 6.0 | 50 | 50 | 20 | 10 |
| CWTHF/3 | 10 | 600 | 40 | 12 | 11 | 12 | 30 | 15 |
| CWTHF/6 | 5.0 | 1.2k | 80 | 12 | 5.5 | 6.0 | 30 | 15 |
| CWTHF/15 | 2.0 | 3.0k | 80 | 10 | 3.0 | 3.0 | 30 | 15 |
| CWTHF/30 | 1.0 | 6.0k | 120 | 10 | 1.5 | 1.5 | 30 | 15 |
| CWTHF/60 | 0.5 | 12k | 120 | 8.0 | 1.0 | 1.0 | 30 | 15 |
| CWTHF/150 | 0.2 | 30k | 120 | 5.0 | 0.8 | 0.8 | 30 | 15 |
| CWTHF/300 | 0.1 | 60k | 120 | 5.0 | 0.2 | 0.2 | 30 | 15 |
| CWTHF/600 | 0.05 | 120k | 120 | 5.0 | 0.06 | 0.05 | 30 | 15 |
| CWTHF/1500 | 0.02 | 300k | 120 | 5.0 | 0.035 | 0.03 | 30 | 15 |
| 型号 | 灵敏度 (mV/A) | 峰值电流 (A) | 峰值di/ dt(kA/μs) | 噪声 (mVp-p) | 衰减 (%/ms) | 低频带宽 (-3dB)Hz | 高频带宽 (-3dB)MHz | |
| CWTMini50HF系列 | 100mm线圈 | 200mm线圈 | ||||||
| CWTMini50HF/015 | 200 | 30 | 2.0 | 20 | 85 | 150 | 50 | 36 |
| CWTMini50HF/03 | 100 | 60 | 4.0 | 18 | 78 | 100 | 50 | 36 |
| CWTMini50HF/06 | 50 | 120 | 8.0 | 12 | 70 | 75 | 50 | 36 |
| CWTMini50HF/1 | 20 | 300 | 20 | 10 | 53 | 50 | 50 | 36 |
| CWTMini50HF/3 | 10 | 600 | 40 | 15 | 11 | 12 | 50 | 36 |
| CWTMini50HF/6 | 5.0 | 1.2K | 80 | 15 | 5.5 | 6.0 | 50 | 36 |
| CWTMini50HF/15 | 2.0 | 3.0K | 80 | 12 | 2.8 | 3.0 | 50 | 36 |
| CWTMini50HF/30 | 1.0 | 6.0K | 100 | 12 | 1.5 | 1.5 | 50 | 36 |
| CWTMini50HF/60 | 0.5 | 12.0K | 100 | 10 | 1.0 | 1.0 | 50 | 36 |
| CWTMini50HF/150 | 0.2 | 30.0K | 100 | 8.0 | 1.0 | 1.0 | 50 | 36 |
| CWTMini系列 | ||||||||
| CWTMini/03 | 100 | 60 | 1.0 | 15 | 6.6 | 7.0 | 10 | 5.0 |
| CWTMini/06 | 50 | 120 | 2.0 | 15 | 4.8 | 5.0 | 10 | 5.0 |
| CWTMini/1 | 20 | 300 | 2.5 | 12 | 3.6 | 4.0 | 20 | 15 |
| CWTMini/3 | 10 | 600 | 5.0 | 10 | 1.8 | 2.0 | 20 | 15 |
| CWTMini/6 | 5.0 | 1.2k | 10 | 10 | 0.8 | 0.9 | 20 | 15 |
| CWTMini/15 | 2.0 | 3.0k | 25 | 8.0 | 0.4 | 0.5 | 20 | 15 |
| CWTMini/30 | 1.0 | 6.0k | 40 | 7.0 | 0.25 | 0.3 | 20 | 15 |
| CWTMini/60 | 0.5 | 12k | 40 | 5.0 | 0.2 | 0.2 | 20 | 15 |
| CWTMini/150 | 0.5 | 30k | 40 | 5.0 | 0.1 | 0.1 | 20 | 15 |
| CWTMini/300 | 0.1 | 60k | 40 | 5.0 | 0.05 | 0.05 | 20 | 15 |
| CWTMini/600 | 0.05 | 120k | 40 | 5.0 | 0.03 | 0.02 | 20 | 15 |
| CWTMini/1500 | 0.02 | 300k | 40 | 5.0 | 0.03 | 0.02 | 20 | 15 |
| 型号 | 灵敏度 (mV/A) | 峰值电流 (A) | 噪声 (mVp-p) | 衰减 (%/ms) | 低频带宽 (-3dB)Hz | 峰值di/dt (kA/μs) | 高频带宽 (-3dB)MHz |
| CWTUM-S/015 | 200 | 30 | 20 | 85 | 150 | 2.0 | 30 |
| CWTUM-S/03 | 100 | 60 | 18 | 78 | 100 | 4.0 | 30 |
| CWTUM-S/06 | 50 | 120 | 12 | 70 | 75 | 8.0 | 30 |
| CWTUM-S/1 | 20 | 300 | 10 | 53 | 50 | 20 | 30 |
| CWTUM-S/3 | 10 | 600 | 12 | 11 | 12 | 40 | 30 |
| CWTUM-S/6 | 5.0 | 1.2k | 12 | 5.5 | 6.0 | 80 | 30 |
| CWTUM-S/15 | 2.0 | 3.0k | 10 | 2.8 | 3.0 | 100 | 30 |
| CWTUM-S/30 | 1.0 | 6.0k | 10 | 1.5 | 1.5 | 100 | 30 |
| CWTUM-S/60 | 0.5 | 12.0k | 8.0 | 1.0 | 1.0 | 100 | 30 |
| CWTUM-S/150 | 0.2 | 30.0k | 5.0 | 1.0 | 1.0 | 100 | 30 |
| 型号 | 灵敏度 (mV/A) | 峰值电流 (A) | 噪声 (mVp-p) | 跌落 (%/ms) | 低频带宽 (-3dB)Hz | 峰值di/dt (kA/μs) | 高频带宽 (-3dB)MHz |
| CWTUM/015 | 200 | 30 | 20 | 80 | 116 | 2.0 | 30 |
| CWTUM/03 | 100 | 60 | 20 | 65 | 67 | 4.0 | 30 |
| CWTUM/06 | 50 | 120 | 15 | 35 | 34 | 8.0 | 30 |
| CWTUM/1 | 20 | 300 | 15 | 9.0 | 9.2 | 20 | 30 |
| CWTUM/3 | 10 | 600 | 10 | 6.0 | 6.2 | 40 | 30 |
| CWTUM/6 | 5.0 | 1.2k | 10 | 3.0 | 3.2 | 70 | 30 |
| CWTUM/15 | 2.0 | 3.0k | 5.0 | 2.0 | 2.0 | 70 | 30 |
| CWTUM/30 | 1.0 | 6.0k | 5.0 | 1.5 | 1.5 | 70 | 30 |
| CWTUM/60 | 0.5 | 12.0k | 5.0 | 1.0 | 1.0 | 100 | 30 |
| CWTUM/150 | 0.2 | 30.0k | 5.0 | 1.0 | 1.0 | 100 | 30 |
| 型号 | 灵敏度 (mV/A) | 峰值电流 (A) | 噪声 (mVp-p) | 衰减 (%/ms) | 低频带宽 (-3dB)Hz | 峰值di/dt (kA/μs) | 高频带宽 (-3dB)MHz | |
| 300mm线圈 | 700mm线圈 | |||||||
| CWTLF/1 | 20 | 300 | 15 | 0.47 | 0.5 | 2.5 | 1.6 | 0.75 |
| CWTLF/3 | 10 | 600 | 15 | 0.24 | 0.25 | 5.0 | 1.6 | 0.75 |
| CWTLF/6 | 5.0 | 1.2k | 15 | 0.19 | 0.2 | 10 | 1.6 | 0.75 |
| CWTLF/15 | 2.0 | 3.0k | 15 | 0.09 | 0.1 | 11 | 1.6 | 0.75 |
| CWTLF/30 | 1.0 | 6.0k | 15 | 0.045 | 0.05 | 11 | 1.6 | 0.75 |
| CWTLF/60 | 0.5 | 12.0k | 15 | 0.018 | 0.02 | 11 | 1.6 | 0.75 |
| CWTLF/150 | 0.2 | 30.0k | 15 | 0.009 | 0.01 | 20 | 3.2 | 1.5 |
| CWTLF/300 | 0.1 | 60.0k | 10 | 0.007 | 0.008 | 20 | 3.2 | 1.5 |
| CWTLF/600 | 0.05 | 120.0k | 5.0 | 0.007 | 0.008 | 20 | 3.2 | 1.5 |
| CWTLF/1500 | 0.02 | 300.0k | 4.0 | 0.007 | 0.008 | 20 | 3.2 | 1.5 |
