The Mitsubishi RM15TB-H is a diode/thyristor combination power module engineered for demanding industrial rectifier and phase-control applications. Housed in a compact, industry-standard package, this module integrates thyristor and diode elements to simplify power stage design while delivering reliable switching performance and thermal efficiency. It is a direct fit for OEM designs that require controlled rectification, soft-start circuits, or AC power regulation, and its robust construction makes it well-suited for environments with high thermal cycling and continuous duty operation.

The RM15TB-H sees broad deployment across industrial motor drives, servo amplifiers, DC power supplies, welding equipment, and induction heating systems. It is commonly found in legacy CNC machinery, industrial HVAC drives, and crane or hoist control panels where controlled rectification is essential. Equipment manufacturers and MRO teams responsible for Mitsubishi-based power conversion infrastructure rely on this module to maintain uptime in applications where unexpected failures carry significant production cost penalties.

Quick Reference: RM15TB-H

Key Features of the RM15TB-H:

• Integrated diode and thyristor elements in a single module package, reducing board space and simplifying thermal management
• 15 A continuous on-state current rating suitable for low-to-mid power controlled rectifier stages
• Isolated base plate construction for safe, direct mounting to heatsinks without additional insulation hardware
• Optimized gate triggering characteristics for reliable phase-control firing across wide load ranges
• Low thermal resistance junction-to-case for enhanced power dissipation and extended operating life under continuous duty
• Designed to Mitsubishi's established RM-series mechanical and electrical standards, ensuring drop-in compatibility with existing OEM assemblies

Mitsubishi's RM15TB-H carries a factory lead time of 36 weeks for new production, creating a serious risk exposure for maintenance teams and procurement professionals who wait until point of failure to source replacements. For aging industrial equipment, the situation is compounded by the possibility of this part moving toward end-of-life status. Securing buffer stock now is the most effective strategy to protect critical machinery. ATI specializes in exactly this scenario — sourcing and stocking hard-to-find, long-lead-time, and obsolete Mitsubishi power modules so your operation isn't held hostage to factory schedules.

ATI Accurate Technology is a power semiconductor distributor located in Palmetto, Florida, stocking IGBTs, thyristors, diodes, and rectifier modules from leading manufacturers including Mitsubishi. Orders placed before 5PM EST ship same-day. Whether you need a single replacement module or volume quantities for MRO inventory, ATI offers competitive pricing and responsive service. Contact our team today at 239-734-7566 or sales@igbts.us for availability, volume pricing, and lead time information.