CT Series Datasheet by KEMET

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E‘ectromc Components KEIl/IEI' CHARGED.‘ a“
1© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard SE0203_CT • 10/21/2019
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
One world. One KEMET
Benefits
• High sensitivity
• High-performance
Compact and lightweight
Mountable on printed circuit boards
RoHS compliant
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.
Current Sensors
CT, Low Current AC
CT-05 Type CT-06 Type CT-07 Type
ammm Compancnls KEIVIEI' Emma): , E m re; fit} ¢ mummy Vlvmmal CTVOGVSO 0106775 (”7067100 85 0 5.0
2© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard SE0203_CT • 10/21/2019
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
Current Sensors – CT, Low Current AC
Ordering Information
CT- 06- 50
Series fi Number of Turns
CT 05
06
07
Blank (CT05 only) = 500 turns
50 = 500 turns
75 = 750 turns
100 = 1,000 turns
Dimensions in mm
22.4
17.5 ±0.4
5.5
10.0 10.0 ±1(1.5)
17.5 ±0.4
10 Maximum
Dummy Terminal
(10.0)*
CT-05
18.0
6.0
(10.0)
15.5
L1 (7.1 Maximum)
19.0
5.9
20.2
φ
φ
5.5 ±0.5
2.0
3.75
(7.5)*
(14.9)*
CT-07
L2
φ
CT-05 CT-06
CT-07
Part Number L1 (±5) L2 (±2)
CT-06-50
56.0 4.0
CT-06-75
CT-06-100
85.0
5.0
Emma):
3© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard SE0203_CT • 10/21/2019
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
Current Sensors – CT, Low Current AC
AC Output Characteristics
CT-05, CT-07 (example) CT-06 (example)
500
200
100
0.1 0.2 0.5 0.7 2 3
CT-06-50
CT-06-75
CT-06-75
Output Voltage Eo (mV)
Primary Current I1 (AT)
70
50
30
20
10
7
5
1 5 7 10
CT-06-100
CT-06-50
CT-06-100
RL=100
RL=10
1
10
100
1,000
0.1 1 10 100
Primary Current I1 (AT)
Output Voltage Eo (mV)
RL=10
RL=100
CT-07-100
CT-07-50 (CT-05)
CT-07-50 (CT-05)
CT-07-100
Measuring Circuit
: primary current (AT)
: load resistance (Ω)
: output voltage (mVrms)
I1
RL
Eo
R
L
Eo
I1
Environmental Compliance
All CT sensors are RoHS compliant.
ammmc compmm KEIVIEI' crummy: cT-os & 01-07 Type cT-06 Type
4© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard SE0203_CT • 10/21/2019
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
Current Sensors – CT, Low Current AC
Specifications
Item Performance Characteristics
Hole Diameter 5.5 – 6.0 mm
Turns 500 – 1,000
Operating Temperature Range 
Storage Temperature Range 
Table 1 – Ratings & Part Number Reference
Part Number Hole Diameter (mm) Turns Core Lead Wires Material Weight (g)
CT-05  500 Permalloy 0.6 mm pin
connectors Phenolic resin case,
fi4.4
CT-06-50  500 Permalloy Polyethylene sheath
0.5 mm single wire Phenolic resin case,
fi 4.5
CT-06-75  750 Permalloy Polyethylene sheath
0.5 mm single wire Phenolic resin case,
fi 4.8
CT-06-100  1,000 Permalloy Polyethylene sheath
0.5 mm single wire Phenolic resin case,
fi 5.0
CT-07-50  500 Permalloy 0.8 mm pin
connectors Phenolic resin case,
fi5.4
CT-07-100  1,000 Permalloy 0.8 mm pin
connectors Phenolic resin case,
fi5.6
Soldering Process
CT-05 & CT-07 Type
Flow Soldering
Preheating temperature 
Preheating time within 90 seconds
Heating temperature 
Heating time within 5 seconds
Iron Soldering Temperature of tip 
Worktime within 3 seconds
CT-06 Type
Iron Soldering Temperature of tip 
Worktime within 3 seconds
ammmc compmm KEIVIEI' EHARGED!
5© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard SE0203_CT • 10/21/2019
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
Current Sensors – CT, Low Current AC
Packaging
Type Packaging Type Pieces Per Box
CT-05
Tray
1,200
CT-06 560
CT-07 1,200
Handling Precautions
Precautions for Product Storage
Current sensors should be stored in normal working environments. While the sensors are quite robust in other
environments, exposure to high temperatures, high humidity, corrosive atmospheres, and long-term storage
degrade solderability.

fl
fi
product and cause its characteristics to change.
For optimized solderability, the stock of current sensors should be used within 12 months of receipt.
Before Using Low Alternating Current Sensors
Do NOT drop or apply any other mechanical stress, as such stresses may change performance characteristics.
Conduct a preliminary study when heating by current conduction (required).
Do NOT use the low alternating current sensors opened between secondary output terminals. Heat build-up in the
magnetic core may occur, resulting in damage to the parts by coil melting.
ammmc compmm KEIVIEI' cumin:
6© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard SE0203_CT • 10/21/2019
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
Current Sensors – CT, Low Current AC
KEMET Electronics Corporation Sales Offi ces
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
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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

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.
When providing KEMET products and technologies contained herein to other countries, the customer must abide by the procedures and provisions stipulated in all

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