EVE EF651615T (High-Temp) LTC-3PN 3.6V 400mAh Li-SOCl2 Battery with Pins
PRE-ORDER ITEM: WE ARE GAUGING IMPORT INTEREST This item is not currently held in Australian stock. We are listing the EVE EF651615T to measure demand ahead of a container order. Registering your interest or placing a pre-order helps us reach the minimum order quantity (MOQ) required to import. Once the import MOQ is met we will immediately proceed with the import and contact every pre-order customer with confirmed lead times. If the MOQ is not reached, your pre-order will not proceed and you will not be out of pocket. Need volume pricing or a firm delivery date? Contact our team and we will work through it with you. The EVE EF651615T is a high temperature lithium thionyl chloride (Li-SOCl2) primary cell in the LTC-3PN prismatic footprint, delivering a nominal 3.6V and 0.4Ah (400mAh) from a 6g package. The "T" suffix is what sets this cell apart from the standard EF651615: it is rated for continuous operation from -60°C right through to +125°C, which puts it in a small group of primary cells that can live inside hot, sealed, hard to reach assemblies for years at a time. It was developed for low drain, long life duty where the device will never realistically be opened again. Tyre Pressure Monitoring Systems (TPMS) are the headline application, and the same characteristics suit utility metering, alarm and security hardware, asset tracking units, memory backup and under bonnet automotive electronics. Why choose the EVE EF651615T high temperature Li-SOCl2 cell Extreme operating window. Rated -60°C to +125°C, well beyond the typical -55°C to +85°C range of standard Li-SOCl2 cells. Flat, high voltage plateau. Holds a stable working voltage across the bulk of its service life rather than sagging progressively. Strong voltage under pulse. Maintains a high minimum voltage during pulsing, so radio transmissions and wake events do not brown out the host circuit. Very low self discharge. Less than 1% per year after one year of storage at +25°C, which is what makes multi year deployments viable. Hermetic, corrosion resistant build. Stainless steel container with a glass to metal seal. Non-flammable electrolyte and non-restricted for transport. PCB pin terminations. Supplied with tinned nickel pins for direct board mounting. EVE EF651615T technical specifications Model EVE EF651615T International size reference LTC-3PN Chemistry Lithium thionyl chloride (Li-SOCl2), primary (non-rechargeable) Nominal voltage 3.6V Nominal capacity 0.4Ah (400mAh) at 0.5mA, +25°C, 2.0V cut off Maximum continuous current 10mA (fresh cell, to 50% of nominal capacity at +25°C, 2.0V cut off) Maximum pulse capability Typically up to 20mA Rated 1 second pulse (to 3V) 10mA Operating temperature range -60°C to +125°C Recommended storage temperature +30°C maximum Self discharge Less than 1% after 1 year of storage at +25°C Dimensions 16.85mm (L) x 15.8mm (H) x 7.0mm (W), prismatic Pin pitch 7.6mm +/- 0.3mm Typical weight 6g Container Stainless steel, hermetic glass to metal seal Terminations Tinned nickel pins (suffix -IP). Available as EF651615T/2P and EF651615T/4P pin configurations Capacity delivered by any Li-SOCl2 cell varies with current drain, operating temperature and the cut off voltage your circuit will tolerate. Pulse capability also varies with pulse frequency and duration, temperature, cell history and the application's acceptable minimum voltage. Figures above are typical values for cells stored for one year or less at 25°C. Approvals and compliance for the EF651615T Compliant with IEC 60086-4 safety standard for primary lithium batteries. Compliant with EN 60079-11 intrinsic safety standard. Underwriters Laboratories (UL) Component Recognition, file number MH28717. Classified non-restricted for transport. Shelf life and storage performance of the EF651615T EVE's accelerated storage testing on this cell ran 200 days at +60°C, which is taken as the equivalent of 10 years of storage at +25°C. On subsequent discharge at 0.5mA the aged cell tracked closely against the initial curve, with only a modest reduction in discharge duration. That is the practical reason Li-SOCl2 is specified for sealed, long life products: the cell is still doing its job a decade later. Store the EF651615T at +30°C maximum for best results. As with all Li-SOCl2 cells, prolonged storage can cause passivation of the lithium anode, which shows up as a brief voltage delay on first load. Designs that draw a small conditioning current, or that pair the cell with a capacitor, handle this without issue. Typical applications for the EVE EF651615T Tyre Pressure Monitoring Systems (TPMS) Utility metering, including gas, water and electricity meters Alarm and security devices Memory backup and real time clock (RTC) retention Asset and vehicle tracking systems Automotive and under bonnet electronics Industrial sensors, IoT nodes and professional electronics Fitting and design notes for the EF651615T This is a 3.6V nominal cell. It is not a drop in substitute for 3V lithium manganese dioxide or 1.5V chemistries in the same physical envelope, so confirm your circuit is designed for the higher terminal voltage before ordering. Do not solder directly to the cell body. Use the supplied pin terminations, or specify a tabbed cell. Direct soldering to the can risks internal heat damage and seal failure. In demanding pulse applications, EVE recommends pairing the cell with a lithium ion battery capacitor or a standard capacitor to support peak current draw while the cell handles the average load. EF651615T safety warnings Fire, explosion and severe burn hazard. Do not recharge, crush, disassemble, heat above 100°C, incinerate, or expose the contents to water. Do not short circuit. Keep out of reach of children. Dispose of used cells through an appropriate battery recycling program rather than general waste. Bulk and OEM supply of the EVE EF651615T This listing exists to gauge import demand, so volume enquiries are exactly what we are after. If you are an OEM, installer or reseller with an ongoing requirement, tell us your annual usage and we will build it into the import order and quote accordingly. Reaching MOQ sooner means everyone gets stock sooner. Browse the full Lithium Thionyl Chloride Batteries range, or see everything in our Lithium Batteries collection. Specifications sourced from the EVE Energy Co., Ltd. technical specification for EF651615T. Information is subject to change without notice and is provided for informational purposes.