Micro Battery
Product Introduction …………………………………… 3
Micro battery Products Lineup ………………………… 5
Example of a Application Circuit ……………………… 6
Charging Circuit ………………………………………… 7
MS Lithium Rechargeable Battery …………………… 8
MS Lithium Rechargeable Battery
<Wide Temperature Range> ………………………… 14
TS Lithium Rechargeable Battery ………………… 16
ML Lithium Rechargeable Battery ………………… 18
CPH Capacitor ………………………………………… 19
CPX Capacitor
<Low ESR, Low Leak Current, Reflowable> ……… 20
Mercury Free Silver Oxide Battery : SEIZAIKEN …… 22
Selection Check Sheet ……………………………… 24
Environmental Activities ……………………………… 25
Precautions for Your Safety ………………………… 26
CONTENTS
1996
Seiko Clock Inc.
1996
Seiko Precision Inc.
1947
Wako Co., Ltd.
1917
K. Hattori & Co., Ltd.
1892
Seikosha
1937
Daini Seikosha Co., Ltd.
1983
Seiko Instruments &
Electronics Ltd.
1997
Seiko Instruments Inc.
1970
Seikosha Co., Ltd.
1983
Hattori Seiko Co., Ltd.
1997
Seiko Corporation
2007
Seiko Holdings Corporation
1881
K. Hattori
SEIKO HOLDINGS GROUP
1993
Today’s Seiko Time Systems Inc.
2001
Seiko Watch Corporation
2005
Today’s Seiko NPC Corporation
1959
Suwa Seikosha Co., Ltd.
1985
Seiko Epson Corporation
2013
Seiko Solutions Inc.
Seiko Instruments Inc. (SII), founded in 1937 as a member of the Seiko Group specializing in the
manufacture of watches, has leveraged its core competency in high precision watches
to create a wide range of new products and technologies.
Over the years SII has developed high-precision processed parts and machine tools
that pride themselves on their sub-micron processing capability,
quartz crystals that came about as a result of our quartz watch R&D,
and electronic components such as micro batteries.
Optimizing our extensive experience and expertise, we have since diversied
into such new elds as compact, lightweight, exceedingly quiet thermal printers,
and inkjet printheads, a key component in wide format inkjet printers for corporate use.
SII, in the years to come, will maintain an uncompromised dedication
to its time-honored technologies and innovations of craftsmanship, miniaturization, and efciency
that meet the needs of our changing society and enrich the lives of those around us.
Creating Time - Optimizing Time - Enriching Time
B
M
3
MEMOProduct Introduction
M
B
4
Silver Oxide Battery Features
• Stable output voltage
•
Available in many sizes of φ11mm or less
• High capacity and High output
Capacitor Features
• Reflowable and high reliability
• Super small and thin size
•
High output and Low ESR (CPX)
Series
Type
Size
(DxH)
(mm)
Nominal
Voltage
(V)
Nominal
Capacity
(mAh)
Internal
Impedance
(Ω)
Operating
Temperature Range
(℃)
Cycle Life
(100% D.O.D.)
(Time)
Reflowable
MS
MS412FE 4.8 × 1.2 3 1.0 100 − 20 to +60 100 −
MS414GE 4.8 × 1.4 3 2.0 100 − 20 to +60 50 −
MS518SE 5.8 × 1.8 3 3.4 90 − 20 to +60 100 −
MS614SE 6.8 × 1.4 3 3.4 80 − 20 to +60 100 −
MS621FE 6.8 × 2.1 3 5.5 80 − 20 to +60 100 −
MS920SE 9.5 × 2.1 3 11.0 35 − 20 to +60 100 −
MS-T MS621T 6.8 × 2.1 3 3.0 80 − 40 to +85 100 −
MS920T 9.5 × 2.0 3 6.5 60 − 40 to +85 100 −
TS TS621E 6.8 × 2.1 1.5 2.5 50 − 20 to +60 100 −
TS920E 9.5 × 2.0 1.5 5.5 20 − 20 to +60 50 −
ML ML414H 4.8 × 1.4 3 1.0 600 − 20 to +60 300*Yes
*10% D.O.D.
Lithium Rechargeable Battery Features
• Excellent cycle characteristics
• Available in many compact sizes
• Wide Temperature Range (MS-T)
Series
Type
Size
(LxWxH)
(mm)
Maximum Use
Voltage
(V)
Capacitance
(mF)
Internal
Impedance
(Ω)
Temperature
Range
(℃)
Reflowable
CPH CPH3225A 3.2 × 2.5 × 0.9 3.3 11.0 160 − 20 to +60 Yes
CPX CPX3225A 3.2 × 2.5 × 0.9 2.6 7.5 25 − 30 to +70 Yes
Type
Nominal
Voltage
(V)
Nominal Capacity
(mAh)
Size
(DxH)
(mm)
Weight
(g)
SR626W 1.55 28 6.8 × 2.60 0.39
SR721W 1.55 26 7.9 × 2.10 0.41
SR726W 1.55 34 7.9 × 2.60 0.52
SR41W 1.55 45 7.9 × 3.60 0.67
SR920W 1.55 42 9.5 × 2.05 0.60
SR927W 1.55 53, 60 9.5 × 2.70 0.75
SR1120W 1.55 53 11.6 × 2.05 0.93
SR1130W 1.55 80 11.6 × 3.05 1.29
SR43W 1.55 120 11.6 × 4.20 1.75
SR44W 1.55 160 11.6 × 5.40 2.20
φ11.6 φ9.5 φ7.9 φ6.8 φ5.8 φ4.8 3.2×2.5
(Units: mm)
General
digital
equipment
Communication
modules
Wireless
sensor
network
devices
Health care
equipment
Vehicle
devices
Our rechargeable batteries, capacitors and silver oxide batteries are available in
various sizes for broad range of applications.
Lithium Rechargeable Battery
Electric Double Layer Capacitor
Silver Oxide Battery (High Dain)
Applications Actual sizes
5
Micro battery Products Lineup
V
CC
VDD
VCC
Main power
supply
SSP-T7-F
Reference: 4pF
MS614SE
3V/3.4mAh
MS414GE
3V/2.0mAh
CPU
SCL
RTC
S-35390A
SDA
INT1
INT2
Temperature
sensor
VR
S-13R1*
RTC used: CMOS real time clock IC S-35390A,
made by ABLIC Inc..
Clock operating voltage: 1.1 to 5.5V,
current consumption: 0.25μA
Crystal used: SSP-T7-FL, made by Seiko Instruments Inc.
CL = 6.0pF, R1 = 65kΩ max.
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0 5,000 10,000
Battery voltage (V)
One year (8,760 hours)
MS614SE
MS414GE
RTC operable voltage
Discharge Time (hours)
* Reverse Current Protection CMOS Voltage Regulator S-13R1, made by ABLIC Inc..
* This circuit diagram is a reference example. See the data sheet of each product before using it.
Example of RTC backup circuit
Example of RTC backup time, using MS414GE / MS614SE
* This graph is a rough indication. The operating time varies depending on the actual service conditions.
6
Example of a Application Circuit
Charging circuit for MS / ML / TS Lithium Rechargeable Battery
MS414GE MS412FE MS518SE MS614SE MS621FE
MS621T
MS920SE
MS920T ML414H
Vo
(V)
Resistor
(ohm)
Resistor
(ohm)
Resistor
(ohm)
Resistor
(ohm)
Resistor
(ohm)
Resistor
(ohm)
Resistor
(ohm)
3.3 2,000 2,000 1,500 620 620 620 prohibited
3.2 1,600 1,600 1,000 430 430 430 prohibited
3.1 1,600 1,600 820 330 330 330 3,000
3.0 1,500 1,500 750 300 300 300 3,000
2.9 1,500 1,500 750 300 300 300 3,000
2.8 1,500 1,500 750 300 300 300 3,000
TS621E TS920E TS621E TS920E TS621E TS920E
Vo
(V)
Resistor
(ohm)
Resistor
(ohm)
Vo
(V)
Resistor
(ohm)
Resistor
(ohm)
Vo
(V)
Resistor
(ohm)
Resistor
(ohm)
3.0 10,000 12,000 2.4 7,500 9,100 1.8 4,300 5,600
2.9 10,000 11,000 2.3 6,800 8,200 1.7 3,600 5,100
2.8 9,100 11,000 2.2 6,200 7,500 1.6 3,000 4,700
2.7 9,100 10,000 2.1 5,600 7,500 1.5 2,700 4,300
2.6 8,200 10,000 2.0 5,100 6,800
2.5 7,500 9,100 1.9 4,700 6,200
Charging circuit for CPH / CPX capacitor
The charging voltage “Vo” must Not be higher than 3.3V (MS series) / 3.1V (ML414H) / 3.0V (TS series).
A resistor must be inserted to regulate the charging current, because our rechargeable batteries have a limit for charging
current.
Please see the below table for recommended resister values.
Those values are minimum for each battery type and “Vo” in the charging circuit.
The following table lists the recommended resistance values. For example, MS614SE and Vo 3.3V, the resister value
should be 620 ohm or more.
MS lithium rechargeable battery / ML lithium rechargeable battery
TS lithium rechargeable battery
Discharge capacity depends on charging voltage.
Lower charging voltage may cause lower discharge capacity.
Please see Charge Voltage Characteristics data in respective battery pages.
You do not need to insert a resister to regulate charging current.
Our CPH / CPX capacitor do not have a limit for charging current.
The charging voltage “Vo” must Not be higher than 3.3V (CPH3225A) / 2.6V (CPX3225A).
Power
Source
Diode
Resistor to regulate
the charging current
MS / ML / TS Battery
Vo
Vf
Power
Source
Diode
CPH / CPX Capacitor
Vo
Vf
7
Charging Circuit
MS412FE / MS414GE / MS518SE / MS614SE / MS621FE / MS920SE
MS (Manganese Silicon) lithium rechargeable batteries, developed by SII, 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.
• Large discharge capacity :
For high operational voltage range of 3.3V to 2.0V.
• Long cycle life :
Cycle life of over 100 cycles (over 50 cycles for
MS414GE) under charge/discharge conditions of 3.1V 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
• Approved by UL (Underwriters Laboratories Inc.)
UL File No. MH15628
Backup power for Real Time Clock, or memory.
E.g. Security Camera, Digital Camera, Action Camera,
GPS equipments, Event Data Recorder, Handy Terminal,
PC, Smart phone.
APPLICATIONS
FEATURES
MS Lithium Rechargeable Batteries are not reflowable. Please mount them on PCB by hand soldering.
CAUTION
Gasket Negative
cap
Negative
electrode
Separater
Positive
electrode
Positive
case
<Cross Section>
*1. Nominal capacity: Typical value of discharge capacity between 3.1V 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.
Please see Page 7 for resister value. Contact us for further details.
If a constant current charge is required, contact us for more information.
MS412FE
MS414GE
MS518SE
MS614SE
MS621FE
MS920SE
0.07
0.08
0.13
0.17
0.23
0.47
Type
3
3
3
3
3
3
1.0
2.0
3.4
3.4
5.5
11.0
0.010
0.010
0.010
0.015
0.015
0.050
0.10
0.05
0.15
0.25
0.25
0.80
100
50
100
100
100
100
1000
500
1000
1000
1000
1000
4.8
4.8
5.8
6.8
6.8
9.5
1.2
1.4
1.8
1.4
2.1
2.1
100
100
90
80
80
35
Nominal
Voltage
(V)
Nominal
Capacity
(mAh)*1
Standard
Discharge
Current
(mA)
Internal
Impedance
(Ω)*2
Charge Voltage
(Standard
Charge Voltage)
*6
(V)
Maximum
Discharge
Current
(Continuous)
(mA)*3
100%*5
D.O.D.
(Depth of
Discharge)
20%*5
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 (3.1)
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)
Cycle Life (Time)*4
8
MS Lithium Rechargeable Battery 3V Type
Non-Reowable
1.5
0.0 0.5 1.0 1.5 2.0 2.5
2.0
2.5
3.0
3.5
Capacity (mAh)
Voltage (V)
2.8V
3.1V
2.9V 3.0V
3.3V
Charge: max. 0.05mA/60 hours (CC/CV)
Discharge: 10 μA/c.o.v. = 2.0V (CC)
2.8V 3.0V
2.9V
3.1V
Capacity (mAh)
3.3V
1.5
2.0
2.5
3.0
3.5
0.0 0.2 0.4 0.6 0.81.0 1.2 1.4 1.6
Charge: max. 0.025mA/72 hours (CC/CV)
Discharge: 10 μA/c.o.v. = 2.0V (CC)
Voltage (V)
1.5
2.0
2.5
3.0
3.5
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5
Capacity (mAh)
Voltage (V)
3.0V
3.1V
3.3V
2.9V
2.8V
Charge: max. 0.06mA/72 hours (CC/CV)
Discharge: 10 μA/c.o.v. = 2.0V (CC)
1.5
2.0
2.5
3.0
3.5
0.0 1.0 2.0 4.03.0
Capacity (mAh)
Voltage (V)
2.8V
3.0V
2.9V
3.3V
3.1V
Charge: max. 0.1mA/96 hours (CC/CV)
Discharge: 15 μA/c.o.v. = 2.0V (CC)
1.5
2.0
2.5
3.0
3.5
0.60.20.0 4.0
Capacity (mAh)
Voltage (V)
2.8V 3.0V
2.9V
3.3V
3.1V
Charge: max. 0.1mA/96 hours (CC/CV)
Discharge: 15 μA/c.o.v. = 2.0V (CC)
1.5
2.0
2.5
3.0
3.5
0.0 4.0 0.210.2 10.08.06.0
Capacity (mAh)
Voltage (V)
Charge: max. 0.2mA/96 hours (CC/CV)
Discharge: 50 μA/c.o.v. = 2.0V (CC)
3.0V
3.1-3.3V
2.9V2.8V
CHARACTERISTICS
*c.o.v.…cut off voltage
MS414GE
MS412FE
MS518SE MS614SE
MS621FE MS920SE
DISCHARGE (CHARGE VOLTAGE DEPENDENCE)
9
1.5
2.0
2.5
3.5
3.0
0.0 1.0 2.0 4.0
180 days
60 days Initial
5.0 6.03.0
Capacity (mAh)
Voltage (V)
Overdischarge: 18kΩ discharge/respective period
[Capacity measurement conditions]
Charge: max. 0.1mA/3.1V, 96 hours (CC/CV)
Discharge: 15 μA/c.o.v. = 2.0V (CC)
30 days
1.5
2.0
2.5
3.0
80℃
0℃
24℃70℃
Voltage (V)
60℃
0.0 1.0 2.0 4.0 5.0 6.0 7.03.0
Capacity (mAh)
Charge: max. 0.1mA/3.1V, 96 hours, RT (CC/CV)
Discharge: 15 μA/c.o.v. = 2.0V, respective temperature (CC)
−20℃
1.5
2.0
2.5
3.5
3.0
0.0 1.0 2.0 4.0 5.0 6.03.0
Capacity (mAh)
Voltage (V)
Storage condition: respective period at 60°C
[Capacity measurement conditions]
Charge: max. 0.1mA/3.1V, 96 hours (CC/CV)
Discharge: 15 μA/c.o.v. = 2.0V (CC)
40 days
60 days
80 days
Initial
100 days
150 days
200 days
20 days
1.5
2.0
2.5
3.5
3.0
0.0 1.0 2.0 4.0 5.0 6.03.0
Capacity (mAh)
Voltage (V)
Storage conditions: Each period at 60°C, applied voltage 3.1V
[Capacity measurement conditions]
Charge: max. 0.1mA/3.1V, 96 hours (CC/CV)
Discharge: 15 μA/c.o.v. = 2.0V (CC)
40 days
60 days
80 days
Initial
100 days
150 days
200 days
20 days
Charge: max. 0.1mA/3.1V, 96 hours (CC/CV)
Discharge: 15 μA/c.o.v. = 2.0V (CC)
1.5
2.0
2.5
3.5
3.0
0.0 1.0 2.0 4.0 5.0 6.03.0
Capacity (mAh)
Voltage (V)
1.5
2.0
2.5
3.5
3.0
0.0 1.0 2.0 4.0
200μA
20μA
10μA15μA
300μA100μA50μA
5.0 6.03.0
Capacity (mAh)
Voltage (V)
Charge: max. 0.1mA/3.1V, 96 hours (CC/CV)
Discharge: respective current/c.o.v. = 2.0V (CC)
5μA
CHARACTERISTICS
Charge/discharge characteristics
MS621FE
Discharge Current characteristics
Overdischarge Characteristics Discharge Temperature Characteristics
High Temperature (60°C) Storage Characteristics Floating Characteristics (60°C, applied voltage 3.1V)
*c.o.v.…cut off voltage
10
MS Lithium Rechargeable Battery 3V Type
0.5±0.20.5±0.2
1±0.3
2±0.3
1.6 max.
0.1±0.02
1.75±0.1
2.2±0.5
φ4.8 max.
1.6±0.3
(Sn plated portion)
1.3
0
-0.15
φ4.8 max.
0.5±0.1
1±0.3
2±0.3
0.1±0.02
1.75±0.1
2.2±0.3
φ5.8 max.
1.6±0.3
(Sn plated portion)
2.1 max.
0.5±0.1
1.85
0
-0.15
φ5.8 max.
0.5±0.20.5±0.2
1±0.3
2±0.3
1.65 max.
0.1±0.02
1.75±0.1
2.2±0.5
φ4.8 max.
1.6±0.3
(Sn plated portion)
1.42
0
-0.1
φ4.8 max.
- Units: mm
- The shaded parts are tin plated (Sn: 100%).
DIMENSIONS
MS412FE FL26E MS412FE
MS518SE FL35E MS518SE
MS414GE FL26E MS414GE
11
0.5±0.10.5±0.1
1±0.3
2±0.3
φ6.8 max.
1.8±0.5
0.1±0.02
2.1±0.4
2.5
+0.3
-0.5
1.8 max.
(Sn plated portion)
1.4
+0.07
-0.10
φ6.8 max.
0.5±0.20.5±0.2
1±0.3
2±0.3
1.8±0.5
(Sn plated portion)
φ6.8 max.
2.5±0.3
0.15±0.02
1.7±0.5
(Sn plated portion)
2.8 max.
2.1±0.2
2.05
+0.10
-0.05
φ6.8 max.
0.5±0.20.5±0.2
(3.3)
2.7 max.
1.8±0.5
1.7±0.5
φ9.5 max.
(Sn plated portion)
(Sn plated portion)
12.8
0
-1.0
2±0.3
2.1±0.5
0.15±0.02
2.0
+0.2
-0.1
φ9.5 max.
DIMENSIONS
- Units: mm
- The shaded parts are tin plated (Sn: 100%).
MS614SE FL28E MS614SE
MS621FE FL11E MS621FE
MS920SE FL27E MS920SE
12
MS Lithium Rechargeable Battery 3V Type
0.5±0.20.5±0.2
1±0.3
2±0.3
1.8±0.5
(Sn plated portion)
φ6.8 max.
2.5±0.3
0.15±0.02
1.7±0.5
(Sn plated portion)
2.8 max.
2.1±0.2
2.05
+0.10
-0.05
φ6.8 max.
0.5±0.20.5±0.2
(3.3)
2.7 max.
1.8±0.5
1.7±0.5
φ9.5 max.
(Sn plated portion)
(Sn plated portion)
12.8
0
-1.0
2±0.3
2.1±0.5
0.15±0.02
2.05
0
-0.2
φ9.5 max.
DIMENSIONS
- Units: mm
- The shaded parts are tin plated (Sn: 100%).
MS621T FL11E MS621T
MS920T FL27E MS920T
13
0
2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4
1
2
3
4
5
6
7
8
9
Capacity (mAh)
Charge Voltage (V)
0
2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4
1
2
3
4
Capacity (mAh)
Charge Voltage (V)
Charge: max. 100μA/respective voltage/
96 hours/RT(CC/CV)
Discharge: 15μA/c.o.v.=2.0V/RT (CC)
Charge: max. 200μA/respective voltage/
72 hours/RT(CC/CV)
Discharge: 25μA/c.o.v.=2.0V/RT (CC)
0
2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4
1
2
3
4
5
6
7
8
9
Capacity (mAh)
Charge Voltage (V)
0
2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4
1
2
3
4
Capacity (mAh)
Charge Voltage (V)
Charge: max. 100μA/respective voltage/
96 hours/RT(CC/CV)
Discharge: 15μA/c.o.v.=2.0V/RT (CC)
Charge: max. 200μA/respective voltage/
72 hours/RT(CC/CV)
Discharge: 25μA/c.o.v.=2.0V/RT (CC)
MS621T / MS920T
“MS621T” and “MS920T” have improved both higher and lower temperature characteristics
while leaving features of the conventional MS rechargeable batteries. They offers wider
temperature range from -40℃ to 85℃.
*c.o.v.…cut off voltage
MS621T MS920T
• Operation over a wide temperature range:
Operating temperature range : −40°C to +85°C
• High reliability : At least 90% of retention capacity after
exposure to 85°C for 100 days.
• Long cycle life : 100 cycles (D.O.D.100%)
• RoHS Compliant
• Approved by UL (Underwriters Laboratories Inc.)
UL File No. MH15628
Type
Nominal
Voltage (V)
Charge Voltage
(Standard Charge Voltage) (V)
Nominal Capacity
*1
(mAh)
Internal Impedance *2
(Ω)
Operating Temperature
Range
Cycle Life (Time) Size (mm) Weight
(g)
100% 20%
Diameter Height
MS621T 3 2.8〜3.3(3.1) 3.0 80 −40℃ to +85℃ 100 1000 6.8 2.1 0.23
MS920T 3 2.8〜3.3(3.1) 6.5 60 −40℃ to +85℃ 100 1000 9.5 2.0 0.45
Backup power for Real Time Clock, or memory.
E.g. Automotive equipment, Security cameras, electronic
power, gas and water meters, electronic devices where
PCB temperature increases.
APPLICATIONS
Charge Voltage Characteristics
CHARACTERISTICS
*1. Nominal capacity: Typical value of discharge capacity between 3.1V and 2.0V.
*2. 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.
Please see Page 7 for resister value. Contact us for further details.
If a constant current charge is required, contact us for more information.
FEATURES
MS Lithium Rechargeable Batteries are not reflowable. Please mount them on PCB by hand soldering.
CAUTION
MS920T FL27E
MS621T FL11E
14
MS Lithium Rechargeable Battery
MS-T Series <Wide Temperature Range> 3V Type
Non-Reowable
2.0
2.2
2.4
2.6
2.8
3.0
3.2
0.0 0.5 1.5 2.5 3.5 4.03.02.01.0
Voltage (V)
Capacity (mAh)
MS621T Discharge Characteristics
* Charge Discharge condition
Charge: 3.1V, 96 hours, max. 100μA, RT
Discharge: 15μA, c.o.v.=2.0V, RT
−40℃
25℃
2.0
2.2
2.4
2.6
2.8
3.0
3.2
3.4
3.6
0.0 1.0 3.0 5.0 7.0 8.06.04.02.0
Voltage (V)
Capacity (mAh)
MS920T Discharge Characteristics
* Charge Discharge condition
Charge: 3.1V, 72 hours, max. 200 μA, RT
Discharge: 25 μA, c.o.v.=2.0V, RT
−40℃
25℃
0
20
40
60
80
100
120
0 2400 2880 3360 384019201440960480
Capacity retention ratio (%)
Storage period (hour)
Storage period - Capacity retention ratio
* Charge Discharge condition
MS920T
Charge: 3.1V, 72 hours, max. 200 μA, RT
Discharge: 25 μA, c.o.v.=2.0V, RT
MS621T
Charge: 3.1V, 96 hours, max. 100 μA, RT
Discharge: 15 μA, c.o.v.=2.0V, RT
MS920T
MS920SE
MS621T
MS621FE
0
20
40
60
80
100
120
0 20 40 60 80 100 120
Capacity retention ratio (%)
Charge time (hour)
3.3V-620Ω
3.1V-330Ω
* Charge condition
3.3V,620Ω
3.1V,330Ω
CHARACTERISTICS
*c.o.v.…cut off voltage
Both the MS621T and MS920T can reach
80% of capacity after 12 hours of charging.
*MS920T: Calculated given a 100% charge of 6.5
mAh nominal capacity.
MS-T series's capacity retention ratio after High
temperature storage were greatly improved.
* 85℃ use of Conventional MS series is not guaranteed.
Discharge characteristics (-40℃ capacity)
Charge Characteristics (MS920T)
High temperature characteristics (85℃ storage)
Charge time - Discharge capacity
Storage period - Capacity retention ratio
*c.o.v.…cut off voltage
MS621T MS920T
15