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Document 1100-1
Current Sense Transformers CST2010
• AEC-Q200 Grade 1 (–40°C to +125°C)
• Sensed current up to 47 A; Designed for frequency range up
to 1 MHz and above.
AEC
+
Q200 125°C
• Very low primary DC resistance
• 1500 Vrms, one minute isolation (hipot) between windings
Core material Ferrite
Terminations RoHS compliant tin-silver over tin over nickel over
phos bronze (pins 1-10); RoHS compliant matte tin over nickel over
copper (pins 11-12)
Weight 4.13 g
Ambient temperature –40°C to +125°C
Maximum part temperature +165°C (ambient + temp rise)
Storage temperature Component: –40°C to +165°C.
Tape and reel Packaging: –40°C to +80°C
Resistance to soldering heat Max three 40 second reflows at
+260°C, parts cooled to room temperature between cycles
Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C /
85% relative humidity)
Packaging 300/13″ reel; Plastic tape: 32 mm wide, 0.5 mm thick,
20 mm pocket spacing, 10.6 mm pocket depth
PCB washing Tested to MIL-STD-202 Method 215 plus an additional
aqueous wash. See Doc787_PCB_Washing.pdf.
DCR max
Frequency
range3
Volt-time
product4
(Vµsec)
Sensed
current5
Iin (A)
Terminating
resistance RT
(Ohms)
(Ohms)
6
Turns (N)
pri:sec
Inductance2
±±0ꢀ (mH)
Part number1
pri
sec
(kHz)
CST2010-020L_
CST2010-030L_
CST2010-040L_
CST2010-050L_
CST2010-060L_
1:20
1:30
1:40
1:50
1:60
0.34
0.76
1.36
2.12
3.06
0.00036
0.00036
0.00036
0.00036
0.00036
0.180
0.265
0.560
0.705
0.850
10 – >1000
7 – >1000
5 – >1000
4 – >1000
3 – >1000
50.8
76.2
101.6
127.0
152.4
47
47
47
47
47
0.5
0.8
1.0
1.3
1.5
CST2010-070L_
CST2010-080L_
CST2010-100L_
CST2010-125L_
CST2010-150L_
1:70
1:80
1:100
1:125
1:150
4.16
5.44
8.50
13.3
19.2
0.00036
0.00036
0.00036
0.00036
0.00036
1.00
1.15
1.45
1.85
2.25
3 – >1000
2 – >1000
2 – >1000
2 – >1000
1 – >1000
177.8
203.2
254.0
317.5
381.0
47
47
47
47
47
1.8
2.0
2.5
3.1
3.8
CST2010-200L_
1:200
34.0
0.00036
4.06
1 – >1000
508.0
47
5.0
1. When ordering, please specify packaging code:
CST2010-200LD
Typical Circuit
+
Vout
–
11
2
Packaging: D =13″ machine-ready reel. EIA-481 embossed plastic
tape (300 parts per full reel).
B = Less than full reel. In an effort to simplify our part
numbering system, Coilcraft is eliminating the need
for multiple packaging codes. When ordering, simply
Pri
(1 turn)
Sec
(N turns)
Iin
Iout
R
T
change the last letter of your part number from B to D.
2. Inductance measured between secondary pins at 1 kHz, 0.1 Vrms, 0 Adc.
3. For specific questions regarding frequency range, please contact us at
cst@coilcraft.com.
12
4
4. Volt-time product is for the secondary, between pin 2 and 4.
5. Primary current of 47 A causes approximately 40°C temperature rise
from 25°C ambient. Higher current causes a greater temperature rise
(see Temperature Rise vs Current curve).
6. Terminating resistance (RT) value is based on 1 Volt output with 40 Amps
flowing through the primary. Varying terminating resistance increases or
decreases output Voltage/Ampere according to the following equation:
RT = Vout × Nsec/Iin.
7 Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Specifications subject to change without notice.
Document 1100-1 Revised 02/11/22
US +1-847-639-6400 sales@coilcraft.com
Please check our website for latest information.
UK +44-1236-730595 sales@coilcraft-europe.com
© Coilcraft Inc. 2022
This product may not be used in medical or high
risk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.
Taiwan +886-2-2264 3646 sales@coilcraft.com.tw
China +86-21-6218 8074 sales@coilcraft.com.cn
Singapore + 65-6484 8412 sales@coilcraft.com.sg
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