Semikron SKKT 42/12 E – Dual Thyristor Module 1200 V 40 A, SEMIPACK 1. It is a genuine Semikron Danfoss thyristor module from the SEMIPACK range.
This module is mounted on a heatsink with its isolated baseplate; the main terminals are screw connections and the gate leads go to the firing board.
More Semikron power modules for drive repair: Semikron range.
The SKKT 42/12 E is a 1200 V Thyristor / Diode module and comes as bare module without pre-applied thermal interface material or lid, ideal for custom assembly processes.
Technical data
| Type | SKKT 42/12 E |
|---|---|
| Semikron Danfoss product number | 230B1640 |
| Product line | SEMIPACK |
| Housing | SEMIPACK 1 |
| Technology | Thyristor / Diode |
| Topology | Rectifier |
| Rated current | 40 A |
| Voltage class | 1200 V |
| Surge current | 850 A |
| Dimensions (L x W x H) | 93x20x30 mm |
| Net weight | 0.095 kg |
| Legacy part number | 07897281 |
| Delivery form | Bare module without pre-applied TIM or lid |
| Product status | In Production |
| Brand | Semikron Danfoss |
| Condition | New, original |
Features (per Semikron Danfoss)
- Heat transfer through aluminium oxide ceramic isolated metal baseplate
- Hard soldered joints for high reliability
- UL recognized, file no. E 63 532
Typical applications
- DC motor control (e. g. for machine tools)
- Repair of converters using the same module
- AC motor soft starters
- Temperature control (e. g. for ovens, chemical processes)
- Professional light dimming (studios, theaters)
Compatibility and replacement
Order with the complete Semikron type SKKT 42/12 E; in Semikron type codes the digits and letters set the current, voltage class, topology and chip generation, so a module with a similar number may not be a direct replacement.
If the marking of the old module is burnt or unreadable, send us a photo and the drive model and we will confirm the correct Semikron type before quoting.
Before you replace it
- Gate wiring and firing board
- SEMIPACK housing size
- Module type (SKKT thyristor/thyristor, SKKH thyristor/diode)
Frequently asked questions
What surge current can it handle?
850 A, according to the Semikron Danfoss product data.
What is the topology?
Rectifier (Thyristor / Diode), according to the Semikron Danfoss product data.
Which housing does it use?
SEMIPACK 1, with dimensions of 93x20x30 mm, according to the Semikron Danfoss product data.
What is the current and voltage rating?
40 A at a voltage class of 1200 V, according to the Semikron Danfoss product data.
Is the baseplate isolated?
Yes. The module is built with an isolated baseplate, so it can be mounted directly on a heatsink that carries other components; always use thermal paste and the specified mounting torque.
Is it new and original?
Yes. We supply new, original parts in the manufacturer packaging, with a 1-year warranty.
Do you ship to my country, and what is the warranty?
Yes. RendatSP ships worldwide from Yiwu, China, by air in 5 to 7 days once the part is ready, and every part carries a 1-year warranty. Send the order number and quantity on WhatsApp and we will reply with a quotation.
Ordering tips
Send us the full order number from the label of the old part, or a clear photo of the label, together with the quantity you need. We check the number against the current manufacturer data before we quote and tell you if there is a newer replacement.
RendatSP ships from Yiwu, China, to factories worldwide; air delivery usually takes 5 to 7 days once the part is ready. The part is new and original with a 1-year warranty (shipping, payment and warranty). For a quotation, message us on WhatsApp with the order number and quantity. We also have agents in Saudi Arabia, Iraq, the UAE, Egypt, Oman, Libya, Morocco, Mauritania, Yemen, Algeria and Jordan.





