TCI STM/U 3W 125mA DC Direct Current Electronic Drivers

The TCI STM/U electronic driver is a direct current driver rated at 3W with a 125mA constant current output, engineered for seamless integration into design LED lighting fixtures. Compact and reliable, it represents a professional-grade solution by TCI for installations demanding precision and stability.

With a wide input voltage range of 100-240V, this driver is compatible with electrical standards across EU, USA, UK, Australia and Japan markets, making it ideal for both residential and contract lighting projects worldwide. The 10-year warranty ensures a long-lasting and dependable investment.

Key technical features

The driver operates in constant current mode at 125mA, delivering a power output of 3W at a maximum voltage of 24V. Its ultra-compact dimensions — 50 x 40 x 22 mm — allow easy integration into slim lighting bodies. Input and output terminal blocks are located on the same side, supporting wire cross-sections up to 2.5 mm² (AWG13). The housing is made of PVC material and mounting is via slot for screws. Current regulation is -8% / +5%, including temperature variations. The driver carries a protection rating of IP20 and insulation class II.

Safety and protections

The TCI STM/U features a comprehensive protection system including thermal protection and short circuit protection, safeguards against mains voltage spikes, and protection against overloads, ensuring safe operation under all installation conditions.

Applications

The TCI STM/U driver is compatible with lighting equipment in protection class I and II, making it well-suited for LED recessed lights, LED strips and decorative luminaires requiring a stable and miniaturised power supply.