Classification: "Lithium Coin"
Chemical System:
Lithium / Manganese Dioxide (Li/MnO2)
Designation: ANSI-5012LC, IEC-CR1220
Nominal Voltage: 3.0 Volts
Typical Capacity: 37 mAh (to 2.0 volts)
(Rated at 45K ohms at 21°C)
Typical Weight: 0.8 grams (0.03 oz.)
Typical Volume: 0.25 cubic centimeters (0.02 cubic inch)
Max Rev Charge: 1 microampere
Energy Density: 153 milliwatt hr/g, 464 milliwatt hr/cc
Typical Li Content: 0.006 grams (0.0002 oz.)
Operating Temp: -30C to 70C
Self Discharge: ~1% / year
Load Cutoff
2.0V
(ohms) (hours)
62,000 800 Bkgnd Drain: Continuous
62K ohms
0.046 mA @2.85V
Pulse Drain: 2 seconds X 12 times/day
1K ohms
2.8 mA @2.8V
Simulated Application test
Typical Performance at 21°C (70°F)
Continuous
Specifications
mm (inches)
Industry Standard Dimensions
Safety :
1) KEEP OUT OF REACH OF CHILDREN. Swallowing may lead to
serious injury or death in as little as 2 hours due to chemical burns and
potential perforation of the esophagus. Immediately see doctor; have
doctor phone (800) 498-8666.
(2) Battery compartment design. To prevent children from removing
batteries, battery compartments should be designed with one of the
following methods: a) a tool such as screwdriver or coin is required to open
battery compartment or b) the battery compartment door/cover requires
the application of a minimum of two independent and simultaneous
movements of the securing mechanism to open by hand. Screws should
remain captive with the battery door or cover.
Lithium Coin
Contents herein do not constitute a warranty and are for reference only.
Typical Drains:
at 2.85V
(mA)
0.046
Pulse Test at 21°C (70°F)
Typical Discharge Characteristics
Internal Resistance Characteristics
Important Notice
This datasheet contains typical information specific to products manufactured at the time of its publication.
ENERGIZER CR1220
Schedule:
1.8
2.0
2.2
2.4
2.6
2.8
3.0
3.2
0 200 400 600 800 1000
Voltage, CCV
Service, Hours
Load: 45K ohms - Continuous
Typical Drain @ 2.9V: 0.046 mA
0
10
20
30
40
50
60
70
80
1.8
2.0
2.2
2.4
2.6
2.8
3.0
3.2
0 5 10 15 20 25 30 35 40
IR, ohms
Voltage, CCV
Capacity, mAh
IR
Pulse
Bkgnd
2.00 (0.079)
1.80 (0.071)
1.60 (0.063) Ref.
1.40 (0.055) Ref.
12.25 (0.482)
12.50 (0.492)
4.00 (0.157)
Minimum
0.20 (0.008) Maximum Ref.
Permissible deflection from a flat.
0.03 (0.001) Minimum Ref.
(Applies to top edge of gasket or
edge of crimp, whichever is higher.)
Form No. 1220GL0618
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