Sensors
CT Series Low Current AC
Overview
The CT Series Low Alternating Current Sensors can be
used to detect very low current levels and for overcurrent
protection in electronic appliances.
Applications
Typical applications include overcurrent detection in
microcontroller-based equipment, refrigerators, air
conditioners, inductive heating, servo motors, inverters,
UPSs and SMPS.
Benefits
•
•
•
•
High sensitivity
High performance
Compact and lightweight
Mountable on printed circuit boards
Ordering Information
CT-
Series
CT
06-
Shape Classification
05
06
07
50
Number of Turns
Blank (CT–05 only) = 500 turns
50 = 500 turns
100 = 1,000 turns
One world. One KEMET
© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 • 864-963-6300 • www.kemet.com
SE0203_CT • 3/27/2017
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Sensors – CT Series Low Current AC
Dimensions in mm
CT-05
(1.5)
10.0 10.0
±
1
CT-06
22.4
L1
L2
(7.1 Maximum)
17.5
±
0.4
(10.0)*
φ
5.5
(10.0)
CT-05
φ
6.0
18.0
17.5
±
0.4
CT-07
20.2
5.5
±
0.5
(7.5)*
3.75
(14.9)*
φ
5.9
Dummy Terminal
10 Maximum
Product Name
CT-06-50
CT-06-100
L1 (±5)
56.0
85.0
CT-07
19.0
2.0
L2 (±2)
4.0
5.0
Output Characteristics
CT-05, CT-07 AC output characteristics (example)
1000
CT-07-100
CT-07-50 (CT-05)
500
CT-06-50
CT-06-100
CT-06-50
100
70
50
30
20
10
7
1
0.1
1
10
100
5
0.1 0.2
0.5 0.7 1
R
L
=10Ω
R
L
=100Ω
CT-06-100
CT-07-50 (CT-05)
CT-07-100
CT-06 AC output characteristics (example)
Output Voltage Eo (mV)
Output voltage Eo (mV)
RL=100
100
200
RL=10
10
15.5
Primary Current I
1
(AT)
Primary current I
1
(AT)
2
3
5
7 10
© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 • 864-963-6300 • www.kemet.com
SE0203_CT • 3/27/2017
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Sensors – CT Series Low Current AC
Measuring Circut
I
1
R
L
Eo
I
1
: Primary current (AT)
R
L
: Load resistance (Ω)
Eo : Output voltage (mV
rms
)
Environmental Compliance
All CT sensors are RoHS compliant.
Table 1 – Ratings & Part Number Reference
Part Number
CT-05
CT-06-50
CT-06-100
CT-07-50
CT-07-100
Turns
500
500
1,000
500
1,000
Core
Permalloy
Permalloy
Permalloy
Permalloy
Permalloy
Lead Wires
φ0.6 mm pin connectors
Polyethylene sheath
φ0.5 mm single wire
Polyethylene sheath
φ0.5 mm single wire
φ0.8 mm pin connectors
φ0.8 mm pin connectors
Material
Phenolic resin case,
epoxy-filled
Phenolic resin case,
silicon-filled
Phenolic resin case,
silicon-filled
Phenolic resin case,
epoxy-filled
Phenolic resin case,
epoxy-filled
Precautions
Before Using Low Alternating Current Sensors
• Do NOT drop or apply any other mechanical stress.
• Preliminary study is required when heating by current conduction.
• Do NOT use the Low Alternating Current Sensors opened between secondary output terminals. Heat build-up in the
magnetic core may occur, resulting in damages to the parts by melting of the coil.
© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 • 864-963-6300 • www.kemet.com
SE0203_CT • 3/27/2017
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Sensors – CT Series Low Current AC
KEMET Electronic Corporation Sales Offices
For a complete list of our global sales offices, please visit www.kemet.com/sales.
Disclaimer
All product specifications, statements, information and data (collectively, the “Information”) in this datasheet are subject to change. The customer is responsible for
checking and verifying the extent to which the Information contained in this publication is applicable to an order at the time the order is placed.
All Information given herein is believed to be accurate and reliable, but it is presented without guarantee, warranty, or responsibility of any kind, expressed or implied.
Statements of suitability for certain applications are based on KEMET Electronics Corporation’s (“KEMET”) knowledge of typical operating conditions for such
applications, but are not intended to constitute – and KEMET specifically disclaims – any warranty concerning suitability for a specific customer application or use.
The Information is intended for use only by customers who have the requisite experience and capability to determine the correct products for their application. Any
technical advice inferred from this Information or otherwise provided by KEMET with reference to the use of KEMET’s products is given gratis, and KEMET assumes no
obligation or liability for the advice given or results obtained.
Although KEMET designs and manufactures its products to the most stringent quality and safety standards, given the current state of the art, isolated component
failures may still occur. Accordingly, customer applications which require a high degree of reliability or safety should employ suitable designs or other safeguards
(such as installation of protective circuitry or redundancies) in order to ensure that the failure of an electrical component does not result in a risk of personal injury or
property damage.
Although all product–related warnings, cautions and notes must be observed, the customer should not assume that all safety measures are indicted or that other
measures may not be required.
KEMET is a registered trademark of KEMET Electronics Corporation.
© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 • 864-963-6300 • www.kemet.com
SE0203_CT • 3/27/2017
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