Saft M 20 EX SV Lithium Battery D-size 12.4 Ah 3.0 V Li-MnO2 Cylindrical Cell

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Saft M 20 EX SV Spec Sheet

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Product Overview

The Saft M 20 EX SV is a compact, high‑reliability Lithium Manganese Dioxide (Li‑MnO₂) primary cell engineered specifically for hazardous‑area, intrinsically safe (IS), and explosive‑atmosphere applications. With its ATEX/IECEx‑compliant construction, stable 3.0V output, and dependable pulse capability, the M 20 EX SV is widely used in oil & gas, petrochemical, mining, industrial IoT, and safety‑critical sensing systems that require long‑life, maintenance‑free power under strict safety constraints.

Designed for Hazardous and Explosive Environments

The defining strength of the M 20 EX SV is its EX‑rated safety architecture, enabling safe operation in environments containing flammable gases, vapors, or dust. Its construction prevents ignition sources while maintaining long‑term electrical performance.

Key safety attributes include:

• Certification for ATEX, IECEx, and other hazardous‑area standards

• Intrinsically safe (IS) design suitable for Zone 0/Zone 1 equipment

• Non‑pressurized, non‑flammable Li‑MnO₂ chemistry

• Hermetically sealed stainless‑steel housing for leak‑proof operation

• High mechanical robustness against shock, vibration, and thermal cycling

This makes the M 20 EX SV a trusted choice for OEMs building certified industrial and safety‑critical devices.

Li‑MnO₂ Chemistry and Performance Benefits

The M 20 EX SV uses Li‑MnO₂ chemistry, providing a balanced performance profile ideal for compact devices requiring long‑term energy and intermittent high‑current bursts.

Performance advantages include:

• High pulse capability without external capacitors

• Stable 3.0V output across most of the discharge curve

• Excellent intrinsic safety due to the stable Li‑MnO₂ system

• Good performance at moderate discharge rates

• Wide operating temperature range, typically −40°C to +70°C

• Low self‑discharge enabling multi‑year deployments

This chemistry ensures reliable operation even after long periods of inactivity.

Key Technical Characteristics

The Saft M 20 EX SV is engineered for compact, long‑life, safety‑critical industrial systems:

• Compact cylindrical format for space‑constrained devices

• Reliable pulse performance for RF transmissions, sensing, and telemetry

• Hermetically sealed stainless‑steel construction for leak‑proof durability

• Non‑flammable, non‑pressurized design for enhanced safety

• Long shelf life with minimal voltage drop during storage

• High energy density relative to its size

These characteristics support both continuous low‑drain operation and periodic high‑drain events without compromising longevity.

Common Applications for the Saft M 20 EX SV

The M 20 EX SV is widely used in industries requiring intrinsic safety, long‑term reliability, and compact power sources:

• Oil & gas instrumentation (pipeline sensors, pressure transmitters, flow meters)

• Petrochemical and refinery monitoring systems

• Mining safety and atmospheric detection equipment

• Hazardous‑area IoT sensors and wireless modules

• Utility metering (AMR/AMI) in explosive zones

• Industrial safety systems and gas detectors

• Asset tracking in hazardous environments

• Environmental and structural monitoring

These applications benefit from the M 20 EX SV’s ability to deliver stable voltage and dependable pulse performance while meeting strict safety certifications.

Why Engineers and OEMs Choose the M 20 EX SV

• Certified for hazardous and explosive atmospheres

• High pulse capability for RF and sensor‑driven workloads

• Stable 3.0V output for sensitive electronics

• Low self‑discharge for long‑term storage and deployment

• Wide temperature tolerance for extreme industrial environments

• Proven reliability in mission‑critical, safety‑regulated systems

• Maintenance‑free operation for sealed or remote devices

The M 20 EX SV is often selected when designers need a compact, EX‑rated, pulse‑capable Li‑MnO₂ power source that can operate safely and reliably for years without maintenance.

Product Description

Saft M 20 EX SV is a Primary Lithium-Manganese Dioxide (Li-MnO2) cylindrical cell and is ideally suited for applications requiring high energy and long operating life, with stable voltage under high discharge. It is certified according to ATEX and IECEx for use in potentially explosive atmospheres.

Product Details

M 20 EX SV is a 3.0 V Primary Lithium-Manganese Dioxide (Li-MnO2) Cylindrical Cell that has a high drain/ high pulse capability, high voltage response, ATEX and IECEx certified, spiral construction, hermetic glass-to-metal-sealing, and a low self discharge.

Product Specifications