50/60HzCurrentSense Transformer

Document 150

Document 150 Revised 12/29/09

This Coilcraft current sense transformer is intended for

use in measuring 50/60 Hz line currents from 0.5 to

20 Amperes rms. Typical application shown below yields

an output of 0.1 Volt per Ampere. The sensitivity may be

changed by adjusting the value of the terminating resis-

400 Hz line currents.

To request free evaluation samples, contact Coilcraft or

visit

www.coilcraft.com.

CS2106

1

2

3

4

8

5

Specifications

Part number

CS2106L

DCR (1,2-3,4)

0.007 Ohms max

DCR (8-5)

26 Ohms max

Isolation

2500 Vrms between

windings

1. Operating temperature range –40°C to +85°C.

2. Electrical specifications at 25°C.

Weight 19 g

Terminations Tin-silver over tin over nickel over copper

Packaging 30 per tray

Isolation (hipot) 2500 Vrms, one minute, between windings

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

PCB washing Tested to MIL-STD-202 Method 215 plus an additional

Typical Circuit

Frequency

Sensed

Part

Turns (N)

DCR max (Ohms)

current

number

pri : sec

min (mH)

1,2 – 3,4

8 – 5

(Hz)

CS2106L

1 :500

75

0.007

26

50 – 400

0.5 A – 20 A

68 Ohms

1. Inductance is for the secondary, tested at 1 kHz, 0.1 Vrms.

2. Square wave response deteriorates above and below this frequency.

3. Use the following equation to determine the approximate change in output voltage/ input ampere when varying the terminating resistor:

Vout /

4. Ambient temperature range –40°C to +85°C.

5. Electrical specifications at 25°C.

0

0.5

1.0

1.5

2.0

05

10

15

20

Current (Amperes rms)

Dimensions are in

inches

mm