Safety guidelines, Underwriters laboratories' (ul) safety approval – Renata SA 3V Lithium Coin Cells - DESIGNER'S GUIDE User Manual
Page 53
53
the
swiss
power source
Underwriters Laboratories' (UL) Safety Approval
Safety Guidelines
52
Max. Abnormal
Model No.
Charging
User
Current (mA)
replaceable
CR1025
5.0
Yes
CR1216
5.0
Yes
CR1216 MFR
3.5
Yes
CR1220
25
Yes
CR1220 MFR
10
Yes
CR1225
25
Yes
CR1616
25
Yes
CR1620
25
Yes
CR1632
25
Yes
CR2016
25
Yes
CR2016 MFR
10
Yes
CR2025
25
Yes
Max. Abnormal
Model No.
Charging
User
Current (mA)
replaceable
CR2025 MFR
10
Yes
CR2032
25
Yes
CR2032 MFR
10
Yes
CR2320
25
Yes
CR2325
25
Yes
CR2430
25
Yes
CR2430 MFR
25
Yes
CR2450N
25
Yes
CR2477N
25
No
175-(a)
25
Yes
338A
25
Yes
1000-(a)
25
Yes
established by the device manufacturer to insure
the diode polarity is correct for each unit, or
B) A blocking diode or the equivalent to prevent
reverse (charging) current, and in the event of
diode failure, the cells shall be further protected
against reverse (charging) current in excess of the
values shown below. The measurement of this
current shall include appropriate abnormal tests.
When D
1
shorted D
2
still protects battery against recharging.
R
1
limits the recharging current when D
1
fails.
~
=
~
=
+
+
R
A
M
R
A
M
D
1
D
2
D
1
R
1
Note: An additional voltage drop over D
2
or R
2
must be considered when battery is operating.