6

Micro Battery 2007-2008

MS Lithium Rechargeable Battery

3V Type

MS412FE/MS518SE/MS614E/MS614SE/MS621FE/MS920SE

MS (Manganese Silicon) lithium rechargeable batteries,

developed by Seiko Instruments Inc., use silicon oxide

as the anode and a lithium manganese composite oxide

as the cathode. As a result, they offer long cycle life and

highly stable overdischarge characteristics.

• Backup power supply for memory or clock function

in various types of electronic equipment for mobile

communication, office automation, audio-visual equipment,

mobile information equipment, etc. (cellphone, PHS,

cordless phone, pager, memory card, fax machine, PC,

video camera, digital camera, tuner, handy terminal, PDA,

etc.)

• Hybrid power supply in combination with solar cells.

• Main power supply for small and slim portable equipment.

Gasket

Negative

cap

Negative

electrode

Separater

Positive

electrode

Positive

case

<Cross Section>

MS412FE

MS518SE

MS614E

MS614SE

MS621FE

MS920SE

0.07

0.13

0.17

0.17

0.23

0.47

Type

3

3

3

3

3

3

1.0

3.4

2.3

3.4

5.5

11.0

0.010

0.010

0.015

0.015

0.015

0.050

0.10

0.15

0.25

0.25

0.25

0.80

100

100

100

100

100

100

1000

1000

1000

1000

1000

1000

4.8

5.8

6.8

6.8

6.8

9.5

1.2

1.8

1.4

1.4

2.1

2.1

100

60

50

80

80

35

Nominal

Voltage

(V)

Nominal

Capacity

Standard

Charge/

Discharge

Current

(mA)

Internal

Impedance

(

Charge Voltage

(Standard

(V)

Maximum

Discharge

Current

(Continuous)

D.O.D.

(Depth of

Discharge)

D.O.D.

(Depth of

Discharge)

2.8 to 3.3 (3.1)

2.8 to 3.3 (3.1)

2.8 to 3.3 (3.3)

2.8 to 3.3 (3.1)

2.8 to 3.3 (3.1)

2.8 to 3.3 (3.1)

Size (mm)

Diameter

Height

Weight

(g)

FEATURES

• Large discharge capacity :

For high operational voltage range of 3.3V to 2.0V.

• Long cycle life :

Cycle life of over 100 cycles under charge/discharge

conditions of 3.3V to 2.0V (D.O.D.100%).

• Excellent overdischarge characteristics :

Continued stable capacity characteristics even after the

battery is overdischarged down to 0.0V.

• Operation over a wide temperature range:

Operating temperature range : −20°C to +60°C

Consult us for using the battery at a temperature beyond

the above temperature range.

• RoHS Compliant

APPLICATIONS

SPECIFICATIONS

*1. Nominal capacity: Typical value of discharge capacity between 3.1V and 2.0V

(Note that the discharge capacity of MS614E is between 3.3V and 2.0V.)

*2. Internal impedance is measured using an AC (Alternating Current) method at the fully charged state.

*3. Maximum discharge current indicates the value of a current for approximately 50% of the nominal capacity.

*4. Cycle Life indicates the times charge/discharge is repeated for approximately 50% of the capacity values in the specification sheet.

*5. 100% and 20% are based on nominal capacity.

*6. A constant voltage charge is recommended, but due to a limit in charge current, it is necessary to insert a resistor to regulate the

charge current.

Contact us for further details.

If a constant current charge is required, contact us for more information.