CST2010

Document 1100-1
Current Sense Transformers CST2010
• AEC-Q200 Grade 1 qualified (–40°C to +125°C ambient)
• Sensed current up to 40 A; Frequency range up to 1 MHz
• Very low primary DC resistance
• 500 Vrms, one minute isolation (hipot) between windings.
Core material Ferrite
Terminations RoHS compliant tin-silver over tin over nickel over phos
bronze
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 +125°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)
Failures in Time (FIT) / Mean Time Between Failures (MTBF)
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332
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
(Ohms)
Turns (N) Inductance2
Part number1
pri : sec
min (mH)
pri sec
CST2010-020L_1 : 20
0.34
0.00036 0.180
CST2010-030L_1 : 30
0.76
0.00036 0.265
CST2010-040L_1 : 40
1.36
0.00036 0.560
CST2010-050L_1 : 50
2.12
0.00036 0.705
CST2010-060L_1 : 60
3.06
0.00036 0.850
CST2010-070L_1 : 70
4.16
0.00036 1.00
CST2010-080L_1 : 80
5.44
0.00036 1.15
CST2010-100L_1 : 100
8.50
0.00036 1.45
CST2010-125L_1 : 125
13.3
0.00036 1.85
CST2010-150L_1 : 150
19.2
0.00036 2.25
CST2010-200L_1 : 200
34.0
0.00036 4.06
1. When ordering, please specify packaging code:
CST2010-200LD
Packaging:D
=13″ machine-ready reel. EIA-481 embossed plastic
tape (300 parts per full reel).
B=Less than full reel. In tape, but not machine ready.
To have a leader and trailer added ($25 charge), use
code letter D instead.
2. Inductance measured between secondary pins at 1 kHz, 0.1 Vrms,
0 Adc.
3. Maximum volt-time product is for the secondary, based on 2000 Gauss.
4. Primary current of 40 A causes less than 25°C temperature rise from
25°C ambient. Higher current causes a greater temperature rise (see
Temperature Rise vs Current curve).
5. 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.
6 Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
FrequencyVolt-timeSensed Terminating
range
product3 current Iin4 resistance RT5
(kHz)
(Vµsec)
max (A)
(Ohms)
10 – 1000
50.8
40
0.5
7 – 1000
76.2
40
0.8
5 – 1000
101.6
40
1.0
4 – 1000
127.0
40
1.3
3 – 1000
152.4
40
1.5
3 – 1000
177.8
40
1.8
2 – 1000
203.2
40
2.0
2 – 1000
254.0
40
2.5
2 – 1000
317.5
40
3.1
1 – 1000
381.0
40
3.8
1 – 1000
508.0
40
5.0
Typical Circuit
11
I in
Pri
(1 turn)
2
Sec
(N turns)
12
[email protected]
subject to change without notice.
US +1-847-639-6400
Please check [email protected]
our website for latest information.
UK +44-1236-730595
Taiwan +886-2-2264 3646 [email protected]
China +86-21-6218 8074 [email protected]
Singapore + 65-6484 8412 [email protected]
RT
Vout
4
Document 1100-1 Revised 04/25/16
© Coilcraft Inc. 2016
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.
Document 1100-2
CST2010 SMT Current Sense Transformers
Temperature Rise vs Current
45
Temperature rise (from 25°C)
40
35
30
25
20
15
10
5
0
0
5
10
15
20
25
30
35
40
45
50
Current (A rms)
Dimensions
Dot indicates pin 1
0.413
max
10,50
0.573
14,55 max
0.004 /0,10
0.650
min
16,51
0.784
max
19,91
Recommended
Land Pattern
11
1
10
0.168 × 0.285
(2)
4,27 × 7,24
0.092
2,34
0.0236
0,60
0.047
1,19
1
10
11
2
0.4425
11,24
3
6
5
0.100
2,54
0.100
2,54
12
Dimensions are in
inches
mm
0.110 × 0.240 (2)
2,80 × 6,10
US +1-847-639-6400 [email protected]
UK +44-1236-730595 [email protected]
Taiwan +886-2-2264 3646 [email protected]
China +86-21-6218 8074 [email protected]
Singapore + 65-6484 8412 [email protected]
4
12
5
9
8
7
6
0.356
9,04
0.356
9,04
Document 1100-2 Revised 04/25/16
© Coilcraft Inc. 2016
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.
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