US
UK
Taiwan
China
Singapore
+1-847-639-6400 sales@coilcraft.com
+44-1236-730595 sales@coilcraft-europe.com
+886-2-2264 3646 sales@coilcraft.com.tw
+86-21-6218 8074 sales@coilcraft.com.cn
+ 65-6484 8412 sales@coilcraft.com.sg
© Coilcraft Inc. 2013
This product may not be used in medical or high
risk applications without prior Coilcraft appr
oval.
Specification subject to change without notice.
Please check web site for latest infor
mation.
SMT Current Sensor
–
T6522-AL
Document 369 -1
Document 369-1 Revised 03/20/07
This low cost transformer is designed for use at 50 kHz to
300 kHz to sense continuous currents up to 3 Amps. The
current windings can be connected in series to provide
twice the output sensitivity. It offers 500 Vrms interwind-
ing isolation.
The small footprint, low profile, surface mount ceramic
case makes it ideal for high-density boards and provides
an excellent surface for pick and place operations.
Applications include power supply feedback control, mo-
tor protection, overload sensing and detecting load drop
or shutdown.
To request free evaluation samples, contact Coilcraft or
visit www.coilcraft.com.
1. When ordering, please specify packaging code:
T6522-ALD
Packaging: D = 13″ machine ready reel. EIA-481 embossed plastic
tape (750 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. The two primary windings may be connected in parallel (1 : 50) to provide
up to 3 A (Iin) sensing capability (3 Vout), or connected in series (2 : 50) to
provide twice the sensitivity (1 A Iin yields 2 Vout).
3. Inductance is for the secondary, measured at 100 kHz, 0.1 Vrms.
4. Maximum volt-time product for the secondary.
5. Varying terminating resistance increases or decreases output Voltage/
Ampere according to the following equation:
RT = Vout × Nsec / Iin.
6. Electrical specifications at 25°C.
Typical Application
1
2
5
6
3
4
50 T RT
1T
Iin Vout
Frequency Sensed Volt-time RT for
Part Turns (N)2 Inductance3 DCR max (Ohms) range current product4 1 Vout
number1 pri : sec min (mH) 1,2 – 5,6 3 – 4 (kHz) max Iin (V-µsec)
from 1 A Iin5
T6522-AL_ 1 : 50 3.4 0.006 0.70 50 – 300 3 A 30 50 Ohms
0
0.5
1.0
1.5
2.0
2.5
3.0
V
out
(Volts rms)
0 0.5 1.0 1.5 2.0 2.5
3.0
Current (Amps rms)
Parallel
Series
Typical Response (with RT = 50 Ohm)
SMT Current Sensor – T6522-AL
US
UK
Taiwan
China
Singapore
+1-847-639-6400 sales@coilcraft.com
+44-1236-730595 sales@coilcraft-europe.com
+886-2-2264 3646 sales@coilcraft.com.tw
+86-21-6218 8074 sales@coilcraft.com.cn
+ 65-6484 8412 sales@coilcraft.com.sg
© Coilcraft Inc. 2013
This product may not be used in medical or high
risk applications without prior Coilcraft appr
oval.
Specification subject to change without notice.
Please check web site for latest infor
mation.
Document 369-2 Revised 03/20/07
0.10
2,54 cen
0.060
1,52
Notch
indicates
pin 1
0.065
1,65
Recommended
Land Pattern
0.290
7,37
0.25
6,35 max
1
6
3
41
6
3
4
0.300
7,62 max
0.430
10,9 max
0.040
1,02
0.100
2,54 cen
typ
ref
0.290
7,37
0.055
1,40
0.025
0,64
Dimensions
Weight: 0.9 g
Termination Tin-silver-copper over silver-palladium-platinum
Ambient temperature –40°C to +85°C
Storage temperature Component: –40°C to +185°C.
Tape and reel packaging: –40°C to +80°C
Packaging 750/13″ reel Plastic tape: 24 mm wide, 0.37 mm thick,
12 mm pocket spacing, 6.5 mm pocket depth.
Document 369-2
Document 369-2 Revised 03/20/07
