STC1120 Datasheet, PDF (1/1 Pages) Frontier Electronics. – RFID Transponder Coils

Frontier Electronics Corp.
667 E. COCHRAN STREET, SIMI VALLEY, CA 93065
TEL: [phone]
FAX: [phone]
E-mail: [e-mail]
Web: frontierusa.com
RFID Transponder Coils—STC1120-Series
A. Electrical specification:
Part Number.
L (mH)
Test Freq
(KHz)
STC1120-374K 0.37
125
STC1120-404K 0.40
125
STC1120-704K 0.70
125
STC1120-904K 0.90
125
STC1120-115K 1.08
125
STC1120-205K 1.97
125
STC1120-245K 2.38
125
STC1120-295K 2.89
125
STC1120-335K 3.30
125
STC1120-415K 4.15
125
STC1120-495K 4.90
125
STC1120-685K 6.80
125
STC1120-715K 7.10
125
STC1120-725K 7.20
125
STC1120-815K 8.10
125
STC1120-905K 9.00
125
Q
(Min)
26
26
20
22
24
28
30
30
30
27
26
28
27
28
28
30
Read
distance
(in./cm)
22/55.9
23/58.4
25/63.5
26/66.0
30/76.2
34/86.4
37/94.0
37/94.0
38/96.5
39/99.1
38/96.5
41/104.1
42/106.7
40/101.6
42/106.7
40/101.6
Sensitivity
(mV/µT)
9.82
10.38
13.96
16.06
17.78
24.90
28.21
32.12
34.96
41.35
47.17
61.71
65.60
66.67
75.08
84.64
Matching
Capacitor
(pF)
4380
4050
2320
1800
1500
823
681
561
491
391
331
238
228
225
200
180
DCR
Max
(Ω)
6.5
7.1
19
21
24
31
34
42
48
70
93
110
114
114
125
125
SRF Typ.
(KHz)
1800
5000
6600
4800
4300
1750
1700
1900
1425
1620
1150
1080
1050
965
965
725
B. Mechanical dimensions: (Unit: mm)
Max
STC1120-series
C. General Information:
1. Tolerance: K = ± 10%.
2. Electrical specifications at 25ºC.
3. Operating temperature: -40ºC to +125ºC.
4. L measured with HP 4284A LCR meter.
5. SRF measured with HP 4291B or HP 8753E.
6. DCR measured with 502BC milli-OHM meter.
7. Read distance measured with KEELOQ Transponder Evaluation Kit part number DM303005 from Microchip.
Distance was record as the voltage across the resonant circuit dropped below 10mV.
8. Sensitivity measured in accordance with Frontier Electronics Corp. application note “Measuring Sensitivity of
Transponder Coils”
9. Matching capacitor vale required for parallel resonant circuit operating at 125 KHz.
Note: RoHS compliant; for the RoHS parts, we add “-LFR” at the end of the P/N.
RFID Transponder Coils STC1120-series
Rev. B
Jan. 01, 2006. Page: 1 of 1