RFID Transponder Coils STC1120-series

Rev. B

Jan. 01, 2006. Page: 1 of 1

Frontier Electronics Corp.

667 E. COCHRAN STREET, SIMI VALLEY, CA 93065

TEL: (805) 522-9998

FAX: (805) 522-9989

E-mail: frontiersales@frontierusa.com

Web: frontierusa.com

A. Electrical specification:

Part Number.

L (mH)

Test Freq

(KHz)

Q

(Min)

Read

distance

(in./cm)

Sensitivity

(mV/µT)

Matching

Capacitor

(pF)

DCR

Max

(Ω)

SRF Typ.

(KHz)

STC1120-374K

0.37

125

26

22/55.9

9.82

4380

6.5

1800

STC1120-404K

0.40

125

26

23/58.4

10.38

4050

7.1

5000

STC1120-704K

0.70

125

20

25/63.5

13.96

2320

19

6600

STC1120-904K

0.90

125

22

26/66.0

16.06

1800

21

4800

STC1120-115K

1.08

125

24

30/76.2

17.78

1500

24

4300

STC1120-205K

1.97

125

28

34/86.4

24.90

823

31

1750

STC1120-245K

2.38

125

30

37/94.0

28.21

681

34

1700

STC1120-295K

2.89

125

30

37/94.0

32.12

561

42

1900

STC1120-335K

3.30

125

30

38/96.5

34.96

491

48

1425

STC1120-415K

4.15

125

27

39/99.1

41.35

391

70

1620

STC1120-495K

4.90

125

26

38/96.5

47.17

331

93

1150

STC1120-685K

6.80

125

28

41/104.1

61.71

238

110

1080

STC1120-715K

7.10

125

27

42/106.7

65.60

228

114

1050

STC1120-725K

7.20

125

28

40/101.6

66.67

225

114

965

STC1120-815K

8.10

125

28

42/106.7

75.08

200

125

965

STC1120-905K

9.00

125

30

40/101.6

84.64

180

125

725

B. Mechanical dimensions: (Unit: mm)

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:

Max