M20EXSV

## Saft M 20 EX SV 2 cell Primary Li-MnO 

3 V lithium manganese dioxide D-size spiral cell certified for ATEX applications 

Saft’s M 20 EX SV cell is ideally suited for applications requiring high energy and long operating life, with stable voltage under high discharge in - 40°C / + 72°C environment. The cell is certified according to ATEX and IECEx for use in potentially explosive atmospheres. 

## 

- High drain / high pulse capability 

- High voltage response, stable during most of the lifetime of the application even after long dormant periods 

~~[a~~ Electrical characteristics (Typical values relative to cells stored up to one year at + 30°C max) Nominal capacity (at 150 mA, + 20°C, 2.0 V cut-off)[(1)] 12.4 Ah Open circuit voltage (at + 20°C) 3.2 V Nominal voltage (under 1 mA at + 20°C) 3.0 V Nominal energy (at 150 mA, + 20°C, 2.0 V cut-off) 35 Wh Pulse capacity[(2)(2)] up to 8.0 A Recommended maximum continuous discharge current[(2) (3)] 3.5 A 

- High capacity and very high pulse capability 

- Low self-discharge compatible with long operating life (less than 1% after 1 year of storage at + 20°C) 

- 

- Superior resistance to corrosion 

- ■ Low magnetic signature 

## Key features 

~~[a~~ Operating conditions Operating temperature range - 40°C / + 72°C (- 40°F / + 161°F) Storage temperatures Recommended + 30°C (+ 86°F) max Allowable[(4)] - 55°C to + 90°C (- 67°F / + 194°F) ~~[TY~~ ATEX properties ~~=~~ Cell marking II 2G EC-type examination certifcate nb BVS 12 ATEX E 026 U[(5)] IECEx Certificate of Conformity nb IECEx BVS 15.0121 U[(5)] + 25°C (+ 77°F) + 40°C (+ 104°F) + 72°C (+ 161°F) Short circuit current (max) 59 A 63 A 66 A Ri (min) 45 m Ω 41 m Ω 35 m Ω Max surface temperature[ (6)] + 112 °C + 113°C + 116°C Temperature class T4 T4 T4 ~~[TY~~ Physical characteristics Diameter (max) 34.2 mm (1.35 in) Height for the tabbed version (max) 61.5 mm (2.42 in) Typical weight 115 g Li metal content approx. 3.5 g 

- Spiral construction 

- Hermetic construction with glass-to-metal seal 

- Stainless steel container 

- ■ Integrated safety vent 

- Non-corrosive electrolyte 

- Non-pressurized at room temperature 

- ■ Restricted for transport (Class 9) ■ Made in Germany 

Designed to meet all major quality, safety and environmental standards 

- Safety: UL 1642 (File MH 61234) IEC 60086-4 

- ATEX/IECEx:IEC 60079-0, IEC 60079-11 

- ■ Transport: UN 3090 and UN 3091 

- Military: VG96915 part 2 and part 154 

- ■ Quality: ISO 9001, Saft World Class Continuous program 

- ■ Environment: ISO 14001 

## Typical applications 

   - (1) Dependent upon current drain, temperature and cut-off. 

- Smart gas meters 

   - (2) Limitation of the max. current to a lower level, e.g. by a series resistor, may be necessary depending on the electrical properties of the device and the desired level of protection (ia, ib, ic) and the explosion group (IIA, IIB, IIC). 

- Gas and oil tank level monitoring 

- Leak detectors 

   - (3) To maintain cell heating within safe limits. Battery packs may imply lower level of maximum current and may request specific thermal protection. Consult Saft. 

- Portable gas detectors 

(4) Long time storage at high temperature may affect performances. Consult Saft. 

- Petrochemical facilities (5) Owner of the certificate: Friemann & Wolf Batterietechnik GmbH. 

- ■ Mining applications (6) During the 3 mΩ short-circuit test according to IEC 60079-11. ~~a~~ 

## Termination & part numbers 

- 1. + tab (radial tab on the positive terminal): 4142180403 

Mid-discharge voltage vs. current at various temperatures 

- 2. C tab (radial tabs on the positive & negative terminals): 4142180203 

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**----- Start of picture text -----**<br>
3,0 —————————<br>2,5<br>2,0<br>- 40°C - 30°C - 15°C 0°C + 23°C + 60°C<br>1,5<br>0 0,5 1,0 1,5 2<br>Discharge current [mA]<br>Cell voltage [V]<br>**----- End of picture text -----**<br>


- 3. Z tab (radial tabs on the positive and negative terminals): 4142180703 

- 4. End caps: 4142187103 

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**----- Start of picture text -----**<br>
1. 2.<br>2,0<br>- 40°C - 30°C - 15°C 0°C + 23°C + 60°C<br>1,5<br>0 0,5 1,0 1,5 2<br>Discharge current [mA]<br>3. Gi 4.<br>Discharge curves at 500 mA at various temperatures<br>Ge<br>3.5<br>3<br>2.5<br>2<br>- 30°C - 15°C 0°C + 23°C + 60°C<br>Storage 1.5 —S,<br>■ The storage area should be clean, cool  0 2 4 6 8 10 12<br>(preferably not exceeding + 30°C), dry  Discharge capacity [Ah]<br>and ventilated.<br>2.42” 2.42”<br>max. 61.5 mm/ max. 61.5 mm/<br>1.35” 1.35” 5 mm  0.20”<br>15 + 2 mm 0.59” + 0.08”<br>max. 34.2 mm/ 5 mm  0.20” max. 34.2 mm/<br>15 + 2 mm 0.59” + 0.08”<br>2.42” 2.42”<br>max. 61.5 mm/ max. 61.5 mm/<br>1.35”<br>15 + 2 mm 0.59” + 0.08”<br>1.35” 0.51”<br>max. 34.2 mm max. 13.0 mm<br>max. 34.2 mm/ 5 mm  0.20”<br>Cell voltage [V]<br>**----- End of picture text -----**<br>


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3.5<br>3<br>2.5<br>2<br>- 30°C - 15°C 0°C + 23°C + 60°C<br>1.5 —S,<br>0 2 4 6 8 10 12 14<br>Discharge capacity [Ah]<br>Capacity vs. current at various temperatures<br>14<br>12<br>10 a<br>8<br>6<br>——<br>4<br>2<br>- 40°C - 30°C - 15°C 0°C + 23°C + 60°C<br>0<br>0 500 1000 1500 2000<br>Discharge current [mA]<br>Cell voltage [V]<br>Capacity [Ah]<br>**----- End of picture text -----**<br>


## Storage 

## Warning 

- Fire, explosion and burn hazard. 

- Do not recharge, short circuit, crush, disassemble, heat above + 100°C (+ 212°F), incinerate, or expose contents to water. 

- Do not solder directly to the cell (use tabbed cell versions instead). 

- Do not obstruct venting mechanism. 

## Saft 

12, rue Sadi Carnot 93170 Bagnolet - France Tel. : +33 1 49 93 19 18 Fax : +33 1 49 93 19 64 www.saftbatteries.com 

## Friemann & Wolf Batterietechnik GmbH 

Industriestr. 22, 63654 Büdingen - Germany Tel. : +49 (0) 6042 954 0 Fax. : +49 (0) 6042 954 190 

Doc N°: 31114-2-0916 Edition: September 2016 

Information in this document is subject to change without notice and becomes contractual only after written confirmation by Saft. Published by the Communications Department Photo credit: Saft 

Produced in FR by Soyouzgraphic