Document 131
Current Sensors – D18xx, CS1xxx
Designed for use above 20 kHz, these sensors function
as the secondaries of a current transformer. The conductor carrying the current to be measured is the “one turn
primary.” Sensitivity can be set at 1 Volt per Ampere or at
other desired values. It can also be doubled by looping
the conductor through the hole twice. Applications include
sensing branch circuit overload, switcher feedback, and
detecting load drop or shutdown.
They come in a molded version (CS1xxx Series) or encapsulated model (D18xx Series).
Coilcraft Designer’s Kit P403 contains samples of the
CS1050, CS1100 and CS1200 sensors, current transformer versions with equivalent ratings, plus two 50/60
Hz current sensors. To order, contact Coilcraft or visit
http://order.coilcraft.com.
Part
Inductance
number
Turns
min (mH)
Sensed Sensitivity
Terminating
current Iin Vout Iin resistor
Color
max (A)
(V)
(A) RT (Ohms)1 code
D1869L 50
5
D1870L 100
20
D1871L 200 80
CS1050L 50
5
CS1100L 100
20
CS1200L 200
80
CS1750L 750 1125
10
24
35
10
24
35
30
1
1
1
1
1
1
1
1
1
1
1
1
1
1
50 Green
100 Brown
200 Red
50
100
200
750
1. Varying terminating resistance will increase or decrease output Voltage/Ampere in conductor.
2. Ambient temperature range –40°C to +85°C.
3. Electrical specifications at 25°C.
D18xx Series
0.465
max
11,81
CS1xxx Series
Date
code
0.20
min
5,08
0.80 max
20,30
A
B
I in
A
0.80
max
20,3
A
3
0.033 ±0.002
0,84 ±0,05
0.45
max
11,43
3
B
0.70 max
17,8
1+
B
3−
RT
Vout
0.20
min
5,08
Color
code
0.34
max
8,64
Typical Circuit
0.375
max
9,53
0.75 max
19,05
3
0.125
max
3,175
Terminations: Tin-silver over copper
Weight:
4.0 – 4.5 g
1
0.50 ±0.015
12,7 ±0,38
3
0.158/0.218
4,01/5,54
1
0.50 ±0.015
12,7 ±0,38
0.036/0.030
0,91/0,76
Terminations: Tin-silver over copper
Weight:
5.3 – 5.8 g
Leads 3 and A are in phase per orientation shown above.
US +1-847-639-6400 sales@coilcraft.com
UK +44-1236-730595 sales@coilcraft-europe.com
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
Document 131 Revised 04/14/09
© Coilcraft Inc. 2013
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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