Document 339 -1
RFID Transponder Coils – B0500
For Microchip
PIC16F639
The B0500 series of transponder coils was designed
specifically for use with the Microchip PIC16F639
microcontroller for RFID applications at 125 kHz. The
I-core
construction provides exceptional sensitivity, long
read distances and excellent DCR values. The core and
winding are protected in a polymer case, which provides
an excellent surface for pick and place operations.
Evaluation samples are available by contacting Coilcraft
or by visiting
www.coilcraft.com.
Part number
B0500-305XJB_
B0500-405XJB_
B0500-505XJB_
B0500-605XJB_
B0500-705XJB_
B0500-805XJB_
B0500-905XJB_
1
Inductance
2
at 125 kHz
(mH)
3.0
4.0
5.0
6.0
7.0
8.0
9.0
Tolerance
5
5
5
5
5
5
5
Sensitivity
(mV/µT)
1741.97
1965.25
2493.00
2653.77
2728.13
2701.36
2677.10
Read
distance
3
(inches/cm)
51 / 129
49 / 124
49 / 124
54 / 137
59 / 149
52 / 132
50 / 127
Matching
capacitor
4
(pF)
550
400
330
260
230
200
180
DCR max
5
(Ohms)
35
40
45
50
50
60
65
SRF typ
6
(MHz)
4.0
3.0
2.2
1.3
1.9
1.6
1.2
1. Specify
packaging
code:
B0500-705XJBD
Packaging: D
= 13″ machine-ready reel. EIA-481 embossed plastic tape (1000 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 C instead.
2. Inductance measured at 125 kHz, 0.1Vrms, using Agilent/HP 4192B impedance analyzer.
3. Read distance measured using the KEELOQ
®
Transponder Evaluation Kit part number DM303005 from Microchip. Distance was recorded as
the voltage across the resonant circuit dropped below 10 mV.
4. Matching capacitor value required for parallel resonant circuit operating at 125 kHz.
5. DCR measured on micro-ohmmeter.
6. SRF measured using Agilent/HP 8753D network analyzer.
7. Operating temperature range -40°C to +125°C.
8. Electrical specifications at 25°C.
Specifications subject to change without notice.
Document 339-1
Revised 04/26/04
Document 339-2
RFID Transponder Coils – B0500
0.17
4,32
0.22
5,59
0.32
8,13
0.05
1,27
0.28
7,11
0.56
14,22
All tolerances are ±0.005 inch (0,127 mm)
0.24
6,10
Recommended
0.06
1,52
Land Pattern
0.34
8,64
Tape and reel:
1000/13″ reel 24 mm tape width
For packaging data see Tape and Reel Specifications section.
Specifications subject to change without notice.
Document 339-2
Revised 03/18/04
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