Genuine Semikron Danfoss SKKH 57/16 E: a 1600 V / 50 A thyristor module in SEMIPACK 1 housing.
Thyristor modules switch on with a gate pulse and stay on until the current falls to zero, which makes them the standard part for phase-angle control of AC and DC power.
More Semikron power modules for drive repair: Semikron range.
The SKKH 57/16 E is a 1600 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 | SKKH 57/16 E |
|---|---|
| Semikron Danfoss product number | 230B1721 |
| Product line | SEMIPACK |
| Housing | SEMIPACK 1 |
| Technology | Thyristor / Diode |
| Topology | Rectifier |
| Rated current | 50 A |
| Voltage class | 1600 V |
| Surge current | 1250 A |
| Dimensions (L x W x H) | 93x20x30 mm |
| Net weight | 0.095 kg |
| Legacy part number | 07897972 |
| 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)
- AC motor soft starters
- Temperature control (e. g. for ovens, chemical processes)
- Professional light dimming (studios, theaters)
- Controlled rectifiers
Compatibility and replacement
Order with the complete Semikron type SKKH 57/16 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.
The values in the table come from the official Semikron Danfoss product data; for full electrical ratings (VCE(sat), switching losses, thermal resistance) we send the datasheet with the quotation.
What to check first
- Repetitive voltage class (/12 = 1200 V, /16 = 1600 V)
- SEMIPACK housing size
- Module type (SKKT thyristor/thyristor, SKKH thyristor/diode)
Frequently asked questions
What is the topology?
Rectifier (Thyristor / Diode), according to the Semikron Danfoss product data.
What is the current and voltage rating?
50 A at a voltage class of 1600 V, according to the Semikron Danfoss product data.
What surge current can it handle?
1250 A, 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.
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.
Can I get the datasheet?
The official manufacturer data is the source of the technical values above; we can send the datasheet with the quotation on request.
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.
Before you order
Compare the complete order number on the old unit with this page, including the suffix: in most ranges the last characters set the coil voltage, current range or version. If the label is worn, send us a photo and we will identify the part.
Every part RendatSP supplies is new and original, carries a 1-year warranty and ships worldwide by air in 5 to 7 days once ready (shipping, payment and warranty). Send us the order number and quantity on WhatsApp or through the inquiry form and we will quote the same working day. Agents in Saudi Arabia, Iraq, the UAE, Egypt, Oman, Libya, Morocco, Mauritania, Yemen, Algeria and Jordan.
