Data Sheet

TIMEKEEPER
®
products AN1012
28/33 Doc ID 6395 Rev 4
Appendix C TIMEKEEPER
®
products
Table 12. Data from M48T02/12 devices (available only in CAPHAT™ - BR1632,
120 mAh)
Table 13. Data from M48T08/Y/18 and M48T58/Y devices
Temperature
(°C)
V
CC
duty cycle = 0%
V
CC
duty cycle = 100%,
shelf life (years)
Typical (years) Worst case (years)
0 > 20 > 20 >> 20
10 > 20 > 20 >> 20
20 > 20 > 20 >> 20
25 > 20 > 20 >> 20
30 > 20 > 20 >> 20
40 > 20 > 20 >> 20
50 > 20 18.5 >> 20
60 19.0 17.0 > 20
70 11.0 11.0 11.0
Temperature
(°C)
CAPHAT or SNAPHAT
(BR1225, 48 mAh)
CAPHAT
(1)
or SNAPHAT
(BR1632, 120 mAh)
1. Only available in M48T08 and M48T18 CAPHAT™.
V
CC
duty cycle = 100%,
shelf life (years)
V
CC
duty cycle = 0%
Typical
(years)
Worst case
(years)
Typical
(years)
Worst case
(years)
0 11.0 10.0 > 20 > 20 >> 20
10 10.1 9.2 > 20 > 20 >> 20
20 9.4 8.5 > 20 > 20 >> 20
25 9.0 8.1 > 20 > 20 >> 20
30 8.6 7.6 > 20 19.0 >> 20
40 7.9 6.8 19.7 16.9 >> 20
50 6.9 5.6 17.1 13.9 >> 20
60 5.9 4.5 14.8 11.3 > 20
70 4.8 3.4 11.0 8.4 11.0