CS1xxx

Document 131
Current Sensors – D18xx, CS1xxx
These sensors function as the secondaries of a current
transformer. The conductor carrying the current to be measured is the “one turn primary.” Voltage per Ampere can be
adjusted by varying the terminating resistor (see note 3).
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 Inductance1 DCR max
number
Turns (N)
min (mH)
(Ohms)
FrequencyVolt-time Sensed Terminating
range
product2current Iin resistance RT3Color
(kHz)
(Vµsec)
max (A)
(Ohms)
code
D1869L
D1870L
D1871L
CS1050L
CS1100L
CS1200L
CS1750L
3 – 1000
2 – 1000
1 – 1000
3 – 1000
2 – 1000
1 – 1000
0.2 – 1000
50
100
200
50
100
200
750
5
20
80
5
20
80
1125
0.7
1.4
4.5
0.7
1.4
4.5
62.0
149
298
596
149
298
596
2235
35
35
35
35
35
35
35
1.4
2.9
5.7
1.4
2.9
5.7
21.4
Green
Brown
Red
1. Inductance is measured at 1 kHz, 0.05 Vrms.
2. Volt-time product is based on 2000 Gauss.
3. Terminating resistance (RT) value is based on 1 Volt output with 35 Amps flowing through the primary. Varying terminating resistance increases or
decreases output Voltage/Ampere according to the following equation: RT = Vout × Nsec / Iin
4. Ambient temperature range –40°C to +85°C.
5. 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.
Document 131 Revised 06/09/15
Similar pages