Tadiran TL-5101 MBU Series Lithium Battery 1/2 AA .95 Ah 3.6V

Tadiran Disposal Guide for Lithium Batteries

Lithium Battery Information Sheet

Tadiran TL-5101 Spec Sheet

Product Overview

The Tadiran TL‑5101 is a 3.6V Lithium Thionyl Chloride (LiSOCl₂) non‑rechargeable primary cell designed for ultra‑long‑life, low‑drain industrial applications that require compact size, stable voltage, and exceptional reliability. As a ½ AA bobbin‑type cell, the TL‑5101 delivers very low self‑discharge, high energy density, and excellent temperature resilience, making it ideal for remote, mission‑critical, and maintenance‑restricted systems.

Performance Characteristics of the TL‑5101

The TL‑5101 leverages Tadiran’s bobbin‑type LiSOCl₂ chemistry, optimized for long‑duration, low‑current operation. Key characteristics include:

• 3.6V nominal voltage with a flat, predictable discharge curve

• Extremely low self‑discharge, typically under 1% per year

• High energy density in a compact ½ AA form factor

• Wide operating temperature range, often −55°C to +85°C

• 10–20+ year service life, depending on load and environment

This chemistry is engineered for devices that must operate reliably for years without battery replacement.

Electrical Behavior in Low‑Drain Systems

The TL‑5101 is optimized for low continuous currents, making it ideal for long‑duration monitoring, metering, and sensing applications. Electrical advantages include:

• Stable 3.6V output for low‑power electronics

• Predictable, linear discharge characteristics

• Minimal voltage drop during long‑term standby

• High energy capacity for multi‑year deployments

• Reliable operation in extreme environmental conditions

This performance profile supports decade‑long, maintenance‑free operation in sealed or remote systems.

Mechanical and Environmental Durability

The TL‑5101 is engineered for rugged industrial and outdoor environments:

• Hermetically sealed stainless‑steel housing

• High resistance to shock, vibration, and mechanical stress

• Excellent performance in extreme cold and heat

• Long shelf life suitable for extended storage

• Proven reliability in remote or inaccessible installations

Its construction ensures stable, long‑term operation in mission‑critical applications.

Typical Applications

The TL‑5101 is widely used in systems requiring long‑life, low‑drain primary power, including:

• Utility metering (gas, water, heat meters)

• Industrial IoT sensors and wireless modules

• Smart city and environmental monitoring nodes

• Asset tracking and geolocation beacons

• Oil & gas instrumentation and pipeline monitoring

• Security and intrusion detection systems

• SCADA and remote telemetry equipment

• Memory backup and RTC power

These applications rely on the TL‑5101’s ability to deliver years of stable, maintenance‑free performance.

Why Engineers Choose the TL‑5101

• Ultra‑long‑life LiSOCl₂ primary chemistry

• Compact ½ AA size with high energy density

• Stable 3.6V output for low‑drain electronics

• Exceptional temperature resilience for harsh environments

• Rugged, maintenance‑free construction

• Proven reliability in industrial, remote, and mission‑critical systems

The TL‑5101 is selected when designers need a high‑reliability, non‑rechargeable lithium cell capable of powering autonomous devices for a decade or more in a compact footprint.

Product Description