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23 mm Transponder Reference Manual
25 July 1996
Page 18 of 22
8. Absolute Maximum Ratings
All data given for free air operating temperature range (unless otherwise noted).
PARAMETER
CONDITION
MIN.
NOM.
MAX.
UNIT
Operating temperature
(read)
Taread
-40
85
oC
Operating temperature
(program)
TaProg
-40
70
oC
Storage temperature
Ts
-40
100
oC
Storage temperature
Ts
5 min
175
oC
Field strength
Hexc
134.2 kHz
168
dB
µ
A /m
9. Recommended Operating Conditions
All data given for free air operating temperature range, a charge time of 50 ms, and a transmitter
frequency of 134.2 kHz +/- 40 Hz (unless otherwise noted).
PARAMETER
CONDITION
MIN.
NOM.
MAX.
UNIT
Charge duration for
read and write
texc
15
50
ms
Charge frequency for
read and write
fexc
134.16
134.2
134.24
kHz
Programming time
tprog
15
ms
Programming field
strength
Hprog
texc
= 50 ms
142.5
dB
µ
A/m
Programming field
strength
Hprog
+ 25 oC
texc
= 50 ms
138.5
dB
µ
A/m
Activation field strength
Hact
texc
= 50 ms
136.5
dB
µ
A/m
Activation field strength
Hact
+ 25 oC
texc
= 50 ms
132.5
dB
µ
A/m
Write bit duration
tbit
*Note
2
ms
Write pulse pause low bit
toff L
*Note
0.3
ms
Write pulse pause high
bit
toff H
*Note
1.0
ms
Note:
Depending on reader characteristics and environmental conditions.