MMF200N120DK6B
1200 V MacMic fast recovery diode module in a fully isolated package, dual diode, for shared-heatsink inverters.
The MMF200N120DK6B is a 1200 V MacMic fast recovery diode module in a fully isolated package, with a dual-diode configuration rated around 200 A average forward current. The isolation lets the module mount directly to a shared heatsink without extra insulating washers, which simplifies assembly and improves thermal coupling in inverters and PFC stages. MacMic's own FRED chip provides fast, soft recovery that reduces reverse-recovery loss, voltage overshoot and EMI, so the diode behaves well in hard-switched converters where an ordinary rectifier would cause trouble. The dual-diode arrangement suits freewheeling, rectification and output stages of motor drives, welding power and power supplies. Every module is factory-traceable and ships with import declaration, certificate of origin and RoHS documentation. Confirm your isolation voltage and clearance with our FAE team, and match the diode's recovery charge to the paired switch for the best system efficiency. Each module ships with import, origin and RoHS documents, and BeiLuo can advise on the matched switching device and the thermal design for a shared heatsink.
FAE Professional Review
The MMF200N120DK6B adds full isolation to the proven MMF FRED diode, which is ideal when several modules share one heatsink. The soft recovery keeps EMI low in hard-switched inverters, and the isolated base removes the mica and washer steps from assembly.
| Parameter | Value |
|---|---|
| VRRM (V) | 1200 V |
| IF(AV) | 200 A |
| Configuration | Dual diode (DK) |
| Package | Isolated |
Application Circuits
Motor drive output stages
Reference circuits and application schematics for Motor drive output stages are available from our FAE team.
Welding power
Reference circuits and application schematics for Welding power are available from our FAE team.
Power supplies
Reference circuits and application schematics for Power supplies are available from our FAE team.
Need a reference schematic or design review? Our FAE engineers can share verified circuits and layout guidance for this part.
Related Documents
Alternative Part Numbers
| Model | Package | Note | Action |
|---|---|---|---|
| MMF200S120DK | Non-isolated | Lower-cost non-isolated version of the same diode family | View |
Complementary Part Numbers
| Model | Package | Note | Action |
|---|---|---|---|
| MMG100J120UZ | GJ-UZ | IGBT module for the switching stage | View |
| MM50G3T120BM | TO-247 Plus | Discrete IGBT for auxiliary stages | View |
Recommended Complementary Products
Frequently Asked Questions
What does the isolated package give me?
Full isolation lets the module mount to a common heatsink without insulating washers, simplifying assembly and improving thermal coupling. It is the right choice when several modules share one heatsink.
Confirm the isolation voltage for your application.
How do I verify the diode fits my current?
Match VRRM to your reverse voltage with margin and IF(AV) to your average current. Check the recovery charge against your switching frequency so the diode does not dominate losses.
Send your operating point for a check.
How should I mount and cool the module?
Apply the recommended mounting torque and a thin thermal interface, then verify case temperature at full load. The isolated base spreads heat across the module footprint.
Request a thermal review for your heatsink.
Is lead time longer for the isolated version?
Availability is confirmed per request; the isolated version may be scheduled rather than stocked. BeiLuo sources through MacMic's authorized channel.
Share your volume for current lead time.