Passive Voltage Oscilloscope Probes
Overview:
CT4200 Series
Datasheet
The CT4200 Series of high impedance, passive voltage oscilloscope probes are designed for use with
most general-purpose oscilloscopes. Their miniature 2.5 mm size provides easy probing of today’s high
density circuits. The series includes 1x, 10x, 20x, and 100x attenuation ratio models interfacing with
scopes having either 1 MΩ or 50 Ω input impedances. Bandwidths range from 55 MHz up to 1.5 GHz.
Each probe comes complete with a full range of performance accessories.
Features:
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■■
■■
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55 MHz to 1.5 GHz bandwidth
8.5 V to 400 V Max Input
Voltage (DC + AC peak)
1x to 100x Attenuation
Low and High Frequency
Compensation
Meets IEC 61010-031:2015
safety standard
Come assembled with:
■■
■■
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Rigid probe tip
Ground lead w/alligator clip
Short collar
Probe tip cover
Technical data subject to change.
© Cal Test Electronics 2018.
caltestelectronics.com
Specifications
All specifications apply to the unit after a temperature stabilization time of 20 minutes over an ambient
temperature range of 25 °C ± 5 °C.
Input
Impedance
R
CT4200
CT4201
1x
10x
1 MΩ
10 MΩ
C
39 pF
10 pF
55 MHz
200 MHz
6.36 ns
1.75 ns
Max Input Voltage
(AC RMS)
55 V CAT II
b
400 V CAT (0)
a
300 V CAT II
b
Scope
Input
1 MΩ
1 MΩ
Model
Attn.
B/W
Rise Time
Comp.range
-
e
10-25 pF
CT4202
10x
10 MΩ
10 pF
350 MHz
1.0 ns
400 V CAT (0)
a
300 V CAT II
b
1 MΩ
10-25 pF
CT4203
10x
10 MΩ
10 pF
500 MHz
0.7 ns
400 V CAT (0)
a
300 V CAT II
b
8.5 V CAT (0)
c
400 V CAT (0)
a
300 V CAT II
b
21 V CAT (0)
c
400 V CAT (0)
a
300 V CAT II
b
1 MΩ
10-25 pF
CT4204
10x
500 Ω
1.8 pF
1.5 GHz
0.24 ns
50 Ω
-
CT4205
20x
20 MΩ
7.6 pF
500 MH z
0.7 ns
1 MΩ
7-25 pF
CT4206
100x
5 kΩ
2.2 pF
1.5 GHz
0.24 ns
50 Ω
-
CT4207
d
10x
10 MΩ
10 pF
700 MHz
0.5 ns
1 MΩ
10-25 pF
a:
Without a Measurement Category; 1250 V transient overvoltage
b: Measurement Category II
c: Without a Measurement Category; 0 V transient overvoltage
d: This probe is specifically designed to operate with the Keysight InfiniiVision* X Series oscilloscopes with 1 MΩ impedance
e: This probe is designed to work with oscilloscopes with an input capacitance around 15 pF
*Keysight and InfiniiVision are trademarks of Keysight Technologies, inc.
Mechanical Characteristics
Weight
Length
250 g
100 cm
Safety Specifications
IEC 61010-031:2015
Specifications are subject to change without notice. To ensure the most current version of this manual,
please download the current version from our website: caltestelectronics.com
Technical data subject to change.
© Cal Test Electronics 2018.
caltestelectronics.com
Accessories
a
b
c
d
e
Ground Lead with Alligator Clip
Ridgid Probe Tip, 2.5mm
Short Collar, 2.5mm
(installed standard)
Sprung Hook, 2.5mm
Trimmer Tool
f
g
h
i
j
Long Collar, 2.5mm
IC Tip Insulators QTY 5, 2.5mm
Tip Insulator 2.5mm
Probe Tip Cover, 2.5mm
BNC Adapter, 2.5mm
k
l
m
n
o
p
Swivel Ground Lead
Swivel Ground Lead Adapter
Ground Spring, 2.5mm
PCB Adapter, 2.5mm
Spring Tip, 2.5mm
CT4200
CT4204
CT4206
✓
✓
✓
✓
-
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
Color Coding Rings 2 each
CT4201
CT 4202
CT4203
CT4205
CT4207
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
Item
CT Part #
Description
Quantity
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
CT4208-10-8
CT4209-0
CT4208-8
CT4211-8
CT4212
CT4213-8
CT4214
CT4215-0
CT4216-8
CT4217
CT3649
CT4218-8
CT4219
CT4220
CT4221-0
CT4222
Ground Lead w/ Alligator Clip
Rigid Probe Tip
Short Collar, 2.5 mm
Sprung Hook, 2.5 mm
Trimmer Tool
Long Collar, 2.5 mm
IC Tip Insulators, 2.5 mm
Tip insulator, 2.5 mm
Probe Tip Cover, 2.5 mm
BNC Adapter, 2.5 mm
Swivel Ground Lead
Swivel Ground Lead Adapter
Ground Spring, 2.5 mm
PCB Adapter, 2.5 mm
Spring Tip, 2.5 mm
Color Coding Rings
(Blue, Green, Red, Yellow)
1
2
1
1
1
1
5
1
1
1
1
1
1
1
1
2 each
Technical data subject to change.
© Cal Test Electronics 2018.
caltestelectronics.com
Performance Data Plots
Maximum Input Voltage Derating Curve
500
Volgage (DC+ACpeak)
400
300
200
100
50
10
CT4201, CT4202, CT4203, CT4205, & CT4207
CT4206
CT4204
0
10 kHz 100 kHz
1 MHz
10 MHz 100 MHz 1 GHz
Frequency
10 GHz
Input Impedance Curve
100 M
10 M
CT4205
CT4201, CT4202, CT4203, & CT4207
CT4200
Impedance (Ohms)
1M
100 K
10 K
1K
100
10
CT4206
CT4204
100 Hz
1 kHz
10 kHz 100 kHz 1 MHz 10 MHz 100 MHz 1 GHz 10 GHz
Frequency
Technical data subject to change.
© Cal Test Electronics 2018.
caltestelectronics.com
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