IXYS MCD255-16I01 Thyristor Diode Module 1600V Y1-CU | Replacement, Equivalent & Selection Guide
The IXYS MCD255-16I01 is a high-current thyristor/diode combination module rated at 1600 V in a compact Y1-CU package. At Konmask.com, we help power electronics engineers and procurement teams identify the right part — whether that is the original IXYS unit, a verified equivalent, or a compatible replacement — backed by traceable sourcing and technical support.
Technical Specifications
- Manufacturer: IXYS (now Littelfuse)
- Part Number: MCD255-16I01
- Function: Thyristor / Diode Module (SCR + Diode)
- Repetitive Peak Voltage (VRRM / VDRM): 1600 V
- Average On-State Current (IT(AV)): 255 A
- Package: Y1-CU (isolated copper base)
- Configuration: Half-controlled bridge / mixed module
- Weight: approx. 360 g
- Condition: New / Refurbished (specify at inquiry)
Compatible Replacement & Equivalent Models
- Semikron SKT250/16E — 250 A / 1600 V SCR+Diode, similar footprint; verify gate drive compatibility
- Vishay VS-VSKT250-16PBF — 250 A / 1600 V, stud-mount variant; adapter bracket may be required
- Infineon TT250N16KOF — 250 A / 1600 V thyristor module; confirm mounting hole pattern
- Powerex KD221K16 — 200 A / 1600 V; suitable for de-rated applications
- Note: Always verify gate trigger current (IGT), holding current (IH), and thermal resistance (Rth) before substitution. Contact our technical team for a validated cross-reference.
Why Choose the Original IXYS MCD255-16I01
- Factory-matched thyristor and diode die — guaranteed symmetrical thermal performance
- Isolated copper base (Y1-CU) for direct heatsink mounting without additional insulation pads
- Proven in industrial drives, UPS systems, and soft-starter applications worldwide
- Full OEM traceability: date code, lot number, and certificate of conformance available
- Eliminates re-qualification risk associated with third-party substitutes in certified equipment
Typical Applications
- AC motor soft starters and variable-speed drives (VSD)
- Industrial rectifier and DC power supply units
- Uninterruptible power supplies (UPS) and battery chargers
- Welding equipment and electrochemical process rectifiers
- Crane, hoist, and elevator drive systems
System Compatibility
- Compatible with standard Y1 / Y1-CU heatsink profiles (isolated mounting)
- Gate drive circuits designed for IXYS MCD-series modules (IGT typically 100–200 mA)
- Suitable for 3-phase half-wave and single-phase full-wave rectifier topologies
- Thermal interface: copper base — use appropriate thermal compound for optimal Rth
- Contact Konmask.com to confirm compatibility with your specific drive or rectifier platform
Selection Guide
- Step 1 – Confirm voltage class: MCD255-16I01 = 1600 V. If your bus voltage is lower (e.g. 690 V AC → ~975 V DC peak), a 1200 V class module may suffice.
- Step 2 – Verify current rating: 255 A average; derate by 20–30% for continuous duty without forced cooling.
- Step 3 – Check package footprint: Y1-CU bolt pattern and terminal positions must match your existing heatsink and busbar layout.
- Step 4 – Validate gate drive: Ensure your firing board can supply the required IGT and dV/dt immunity for the replacement module.
- Step 5 – Request a cross-reference report: Submit your application details to support@konmask.com for a validated equivalent recommendation.
Quality Assurance & Sourcing
- All units sourced from authorised distributors or verified OEM channels
- Visual, dimensional, and functional inspection performed before shipment
- Traceability documentation (date code, CoC) archived and available on request
- Zero-tolerance anti-counterfeiting policy — no grey-market or remarked parts
- Global logistics from Hong Kong hub: air freight, sea freight, and DDP options available
How to Order
- Submit your RFQ via the “Get a Quote” button or email support@konmask.com
- Specify quantity, required condition (new / refurbished), and any cross-reference requirements
- Receive formal quotation with lead time and traceability details within 1 business day
- Confirm purchase order — T/T, PayPal, and major credit cards accepted
- Receive shipping confirmation with tracking number and export documents
Replacement & Compatibility FAQ
Q: Can I replace MCD255-16I01 with a Semikron SKT250/16E directly?
A: In most cases yes, but gate trigger current and thermal resistance must be verified against your application. We recommend requesting a validated cross-reference report before substitution.
Q: Is the Y1-CU package the same as a standard Y1 package?
A: Y1-CU denotes a copper base plate (vs. aluminium in standard Y1), offering lower thermal resistance. Mounting dimensions are identical, but thermal compound selection may differ.
Q: Do you supply refurbished MCD255-16I01 modules?
A: Yes. Refurbished units are available with full inspection reports. Please specify your requirement when submitting an RFQ.
Q: What is the lead time for new stock?
A: Lead time varies by stock availability. Contact us for real-time inventory status — we can often ship within 3–5 business days from our Hong Kong hub.
Q: Can you provide a certificate of conformance?
A: Yes. CoC and traceability documentation are provided with every shipment upon request.
© 2026 Konmask.com. All rights reserved.
Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
