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TBCP2-500
RF CURRENT MONITORING PROBE
1 Introduction
The TBCP2-500 is a snap-on RF current monitoring probe, expanding the Tekbox product
range of affordable EMC pre-compliance test equipment.
The probe has a very flat response with a 3dB bandwidth of 500 MHz and is characterized
and usable over the frequency range from 10kHz to 500 MHz.
Picture 1: TBCP2-500 RF current monitoring probe
The aperture of the RF current monitoring probe is 32 mm. Its transfer impedance is > 17 dB
Ohm in the range from 1 MHz to 500 MHz.
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TBCP2-500
RF CURRENT MONITORING PROBE
2 Specification
Characterized frequency range: 10 kHz to 500 MHz
Aperture diameter: 32 mm
Outside diameter: 73 mm
Height: 20 mm
Weight: 320 g
Connector type: N female
Transfer impedance: 0 to 20 dBΩ between 150 kHz and 500 MHz
Max. primary current (DC - 400 Hz): 80 A
Max. primary current (RF): 3 A
Max. core temperature: 125 °C
3 Transfer impedance
Figure1: typical transfer impedance: 10 kHz to 500 MHz, linear
Figure2: typical transfer impedance: 10 kHz to 500 MHz, logarithmic
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Frequency [MHz]
transfer impedance [dBΩ]
Frequency [MHz]
transfer impedance [dBΩ]
0.01
-21.61
40
20.57
0.02
-15.78
50
20.59
0.03
-12.18
60
20.60
0.04
-9.79
70
20.64
0.05
-7.81
80
20.66
0.06
-6.24
90
20.66
0.07
-4.91
100
20.62
0.08
-3.73
110
20.59
0.09
-2.68
120
20.52
0.1
-1.77
130
20.48
0.2
4.25
140
20.44
0.3
7.69
150
20.41
0.4
10.06
160
20.37
0.5
11.84
170
20.36
0.6
13.23
180
20.41
0.7
14.35
190
20.55
0.8
15.27
200
20.61
0.9
16.02
225
20.75
1
16.65
250
20.69
2
19.06
275
20.64
3
19.51
300
20.32
4
19.68
325
20.31
5
19.80
350
20.47
6
19.89
375
20.61
7
19.96
400
20.53
8
20.02
425
20.32
9
20.07
450
19.82
10
20.11
475
19.55
20
20.37
500
19.19
30
20.52
TBCP2-500
RF CURRENT MONITORING PROBE
4 Typical transfer impedance table
The table below shows typical transfer impedance data of a TBCP2-500 current probe. Each
current probe is delivered with its corresponding measurement protocol. This data can be
used for the creation of a correction file for EMCview or similar EMC measurement software.
The transfer impedance in dBΩ subtracted from the analyzer reading in dBµV gives the
corrected reading in dBµA.
Refer to the application notes of EMCview on how to create a current probe correction file.
Table1: Transfer impedance: 10 kHz to 500 MHz
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Part Number
Description
TBCP2-500
Snap on RF current monitoring probe, beech-wood box,
calibration protocol
TBCP2-CAL
Calibration fixture for TBCP2 current probe series
Version
Date
Author
Changes
V 1.0
7.12.2020
Mayerhofer
Creation of the preliminary document
V 1.0
28.1.2021
Mayerhofer
Photo update
TBCP2-500
RF CURRENT MONITORING PROBE
5 Accessory
Tekbox supplies a calibrator corresponding with the TBCP2 series of snap on current probes:
Picture 2: TBCP2-CAL RF current probe calibration fixture
6 Ordering Information
7 History
www.tekbox.com
TekBox Digital Solutions Vietnam Pte. Ltd.
Factory 4, F5, Lot I-3B-1, Saigon Hi-Tech Park, Tan Phu Ward, District 9, Ho Chi Minh City, Vietnam
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