1. Operation beyond the rated maximum voltage or current may result in device damage and possible electrical arcing or flame

2. Hold current at all temperatures specified in the SPEC is the conventional performance of PTC obtained by one-time reflow welding. PTC can hold 1 hour under current conditions at a given temperature. This current is not the condition of long-term charging or discharging current for this type of PTC.

3.  The above parameters are concluded from one time of reflow soldering processing the PTC. If there is any further heat generated process like injection or

dispensing at the customer's premise, the aforementioned parameters will decrease to a certain degree. Therefore the verification test to be conducted is

necessary.

4. The PTC is a thermally sensitive device. It is recommended not to design any heat source devices to reduce the outside heat source impact.

5. SMD PTC is designed for SMT processing, which applies reflow soldering. Please refer to the recommended solder reflow curve. If the reflow soldering

temperature exceeds the recommended value, the PTC might be damaged. Hand welding PTC is prohibited. A heat gun is not allowed to use during the circuit

board components or terminals rework.

6. When mounting or using PTC, all injection molding materials, curing adhesives, UV glue, silica gel, and cleaning agents or solvents must be tested in terms of

application parameters, e.g., temperature, time, etc. to ensure the consistency between the product and the processing before use

7. When mounting or using PTC, it is not recommended to use circuit board washer water or another cleaning agent. If cleaning is required, it is necessary to verify

the applicability of various cleaning agents, washboard water and solvents, and confirm that they will not affect the PTC performance. The known chemicals that

impact PTC include but are not limited to ethers, benzene homolog, ketones, lipids, and derivates of strong solubles and ruinous. Please place the product

in an open environment for at least 24 hours to volatilize solvents residuals.

8. Please do not smash, clamp, pull, dent or twist by the tool during the assembling process; otherwise, it might be a cause of the performance degradation

9. When PTC is welded to the PCM in product application, if injection or gluing is needed, it should be completed in as short a time as possible. If the time slot

between mounting and injection or gluing surpasses 1 month, please keep in an airtight environment to avoid long air exposure.

10. PTC is a resettable protection device that shall not be taken for use as a switch. Multiple times tripping shall lower the PTC hold current.

11. In charging terminal application, PP type material is recommended to use as inner membrane, and TPE and PVC type material is inhibited.

12. In the process of PTC processing, if there is a soldering iron welding process, it is suggested that the welding position should be more than 1.5mm away from

PTC, the welding tool temperature should be lower than 350 ℃, and the contact time between the soldering iron and solder joint should not exceed 3sec.

13. Low resistance SMD PTC humidity sensitivity grade 2, for sealed packaging. If customers find damaged packaging in stock, they should isolate the product

If there is surplus material, they need to restore the packaging status and do sealed storage.