ECM Chip Transponder Inductors
ECM
Part
L
Tol
%
C
Q Min. SRF
(**kHz) Min.
(kHz)
Reading
Distance
(cm)RD
29
(mH)
(pF)
SDTR1103T-291 0.29 @125 kHz
SDTR1103T-341 0.34 @125 kHz
SDTR1103T-411 0.41 @125 kHz
SDTR1103T-491 0.49 @125 kHz
SDTR1103T-601 0.60 @125 kHz
SDTR1103T-731 0.73 @125 kHz
SDTR1103T-901 0.90 @125 kHz
SDTR1103T-102 1.08 @125 kHz
SDTR1103T-162 1.62 @125 kHz
SDTR1103T-192 1.97 @125 kHz
SDTR1103T-242 2.38 @125 kHz
SDTR1103T-292 2.89 @125 kHz
SDTR1103T-342 3.44 @125 kHz
SDTR1103T-402 4.05 @125 kHz
SDTR1103T-492 4.91 @125 kHz
SDTR1103T-602 6.00 @125 kHz
SDTR1103T-722 7.20 @125 kHz
SDTR1103T-742 7.36 @125 kHz
SDTR1103T-902 9.00 @125 kHz
SDTR1103T-113 10.8 @125 kHz
SDTR1103T-143 13.5 @125 kHz
SDTR1103T-163 16.2 @125 kHz
K
K
K
K
K
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
J
5600
20
20
20
20
20
20
20
20
20
20
22
25
25
25
25
25
25
25
22
20
20
20
1000
4700
3900
3300
2700
2200
1800
1500
1000
820
1000
1000
1000
1000
1000
1000
1000
600
34
38
39
41
42
43
45
52
400
59
680
400
65
560
400
68
470
400
71
400
350
74
330
350
75
270
350
75
225
330
70
220
300
63
180
300
61
150
300
54
120
250
47
100
250
45
TOLERANCES J=5%; K= 10%.
** = Operating and Test Frequency as specified in ‘L’ column
C = Capacitor for tuning circuits (125kHz) NB - the parallel input Cap. of the IC
must also be taken into account
RD = 20mVp/p in a tuned circuit – Emitter ∅ 194mm, L @ 734 µH, Vrms 73.3mV
ECM Electronics Limited, Penmaen House, Ashington, West Sussex, RH20 3JR, UK
Tel: +44(0)1903 892810: Fax: +44(0)1903 892738. Email: ecm@ecmelectronics.co.uk
Although we have attempted to accurately reflect the products we market. ECM reserve the right without prior notice to
discontinue any product or make design changes we believe necessary.
Issue 1