The Infineon TT105N16LOF is a dual thyristor (SCR) module configured for high-power phase control and AC switching applications. Rated at 105A average on-state current (IT(AV)) and a 1600V repetitive peak off-state voltage (VDRM/VRRM), this module is engineered for robust performance in harsh industrial environments. Its compact, isolated base module package simplifies heatsink mounting and system integration, while Infineon's proven silicon technology ensures consistent gate sensitivity, low on-state losses, and dependable thermal characteristics across the full operating range.

The TT105N16LOF is well-suited for industrial AC motor soft-starters, resistance heating and temperature control systems, electrochemical rectifier assemblies, and medium-voltage power supplies. It is commonly deployed in process industry drives, HVAC systems, and energy management equipment where controlled power delivery and long service life are non-negotiable. The module's voltage class and current rating also make it a strong candidate for uninterruptible power supply (UPS) front ends, crane and hoist drives, and static transfer switches operating on 690V or 690V-class grids.

Quick Reference: TT105N16LOF

Key Features of the TT105N16LOF:

• 1600V repetitive peak off-state voltage (VDRM/VRRM) — suited for 690V AC line applications with standard safety margin
• 105A average on-state current (IT(AV)) with low on-state voltage drop for reduced conduction losses and improved system efficiency
• Isolated copper base plate for direct heatsink mounting, simplifying thermal management in dense power assemblies
• High gate sensitivity with defined IGT and VGT parameters for reliable triggering from standard thyristor gate drive circuits
• Rated for high di/dt and dv/dt capability, supporting reliable operation in phase-control and line-commutated converter topologies
• Industry-standard module footprint compatible with common Infineon and cross-vendor mounting hardware and busbar configurations

With a published factory lead time of 99 weeks for new production, procurement of the TT105N16LOF through standard distribution channels presents a serious operational risk for facilities managing scheduled maintenance, unplanned failures, or new build projects. This is a part class where obsolescence exposure is real — Infineon's LOF-series modules have seen reduced production priority as newer platforms emerge. Relying on spot availability rather than confirmed, stocked inventory can result in costly production downtime and extended equipment outages. Securing verified in-stock units now is the prudent strategy for any MRO or project BOM.

ATI Accurate Technology is stocked and ready to ship the TT105N16LOF today from our Palmetto, Florida facility. We specialize in IGBTs, thyristors, and power modules — including hard-to-find and long-lead-time parts exactly like this one. Orders placed before 5PM EST ship same day. Volume pricing is available for project and MRO quantities. Contact our team directly at 239-734-7566 or sales@igbts.us for a fast quote.