---
title: "Power Up Efficiency: MCC Launches 1200V Super Fast Recovery Diodes in TO-247AD"
description: 1200V ultrafast recovery rectifier diodes in a robust TO-247AD package, offering 50A/75A current capability, low forward voltage, ultrasoft recovery, and high surge robustness for efficient, low-noise operation in high-frequency PFC, UPS, welding, and industrial power control applications.
image: https://solutions.mccsemi.com/hubfs/Power%20Up%20Efficiency%20MCC%20Launches%201200V%20Ultrafast%20Recovery%20Diodes%20in%20TO-247AD%20%20-%20mcc%20semi%20-%20micro%20commercial%20components%201080x400.png
---

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# Power Up Efficiency: MCC Launches 1200V Super Fast Recovery Diodes in TO-247AD

# Power Up Efficiency: MCC Launches 1200V Super Fast Recovery Diodes in TO-247AD

![MCC](https://solutions.mccsemi.com/hs-fs/hubfs/mcc%20150x150%20(1).png?width=50&height=50&name=mcc%20150x150%20(1).png)

 by [MCC](https://solutions.mccsemi.com/news/author/mcc)

December 16, 2025

## High-Voltage Devices with Ultrasoft Switching to Minimize Noise and Losses in High-Frequency Systems

MCC introduces the [MURZ50120P](https://www.mccsemi.com/products/diodes/super-fast-recovery-rectifiers/murz75120p) and [MURZ75120P](https://www.mccsemi.com/products/diodes/super-fast-recovery-rectifiers/murz50120p), high-voltage super fast recovery rectifiers in the robust TO-247AD package. Designed for high-frequency power stages where efficiency and EMI performance matter, these 1200V diodes deliver a maximum reverse recovery time (Trr) of just 0.22 μs combined with ultrasoft recovery characteristics to minimize switching losses and significantly reduce electromagnetic interference (EMI). This helps designers meet stringent efficiency and noise targets with less filtering effort and simpler EMI design. 

With a low forward voltage drop of 1.85V, these devices reduce conduction losses and improve overall system efficiency. Their near-zero temperature coefficient (ZTC) ensures stable forward voltage and switching behavior across a wide temperature range, simplifying thermal management and worst-case analysis. High surge current capability, 400A for the MURZ50120P and 500A for the MURZ75120P, combined with a planar die structure, provides exceptional robustness against inrush and transient events while ensuring consistent electrical performance for reliable, repeatable designs.

The MURZ50120P supports an average forward current of 50A, while the MURZ75120P offers 75A, giving engineers flexibility to scale across different power levels or reduce the need for parallel devices. Additional key features include low reverse recovery charge (Qrr) of 2728nC and 3342nC for ultrasoft recovery and reduced EMI, a rugged TO-247AD through-hole package for excellent thermal performance, and a compact footprint that maintains good creepage and clearance distances for high-voltage designs. 

These diodes are ideal for demanding applications such as PFC stages, UPS systems, welding equipment, and industrial power control, where efficiency, ruggedness, and high-frequency performance are critical. Their combination of 1200V reverse voltage rating, high current capability, and super fast recovery behavior makes them a strong fit for off-line and industrial high-voltage power systems. 

![Power Up Efficiency MCC Launches 1200V Ultrafast Recovery Diodes in TO-247AD  MURZ50120P and MURZ75120P, - mcc semi - micro commercial components 500x500 (1)](https://solutions.mccsemi.com/hs-fs/hubfs/Power%20Up%20Efficiency%20MCC%20Launches%201200V%20Ultrafast%20Recovery%20Diodes%20in%20TO-247AD%20%20MURZ50120P%20and%20MURZ75120P%2c%20-%20mcc%20semi%20-%20micro%20commercial%20components%20500x500%20(1).png?width=500&height=500&name=Power%20Up%20Efficiency%20MCC%20Launches%201200V%20Ultrafast%20Recovery%20Diodes%20in%20TO-247AD%20%20MURZ50120P%20and%20MURZ75120P%2c%20-%20mcc%20semi%20-%20micro%20commercial%20components%20500x500%20(1).png)

[1200V Super Fast Recovery Diodes](https://www.mccsemi.com/products/mosfets/power-mosfets/mcac2d6n04y)

##### Features & Benefits:

- 1200V reverse voltage rating supports off-line and industrial high-voltage power systems
- High average forward current ratings of 50A (MURZ50120P) and 75A (MURZ75120P) suit medium- to high-power stages
- Super fast recovery time (trr) of 0.22 μs (max) minimizes switching losses and enables high-frequency operation
- Low reverse recovery charge (Qrr) of 2728nC and 3342nC for ultrasoft recovery and reduced EMI
- Low forward voltage drop (Vf) of 1.85V enhances efficiency by reducing conduction losses
- High surge current capability (Ifsm) of 400A and 500A for ruggedness against transient events and inrush conditions
- Planar structure die for better reliability, consistency, and parameter accuracy
- Near Zero Temperature Coefficient (ZTC) ensures stable forward voltage (Vf) and switching parameters over a wide temperature range, simplifying thermal management and design-in
- Robust TO-247AD through-hole package provides excellent thermal performance and mechanical stability for high-current designs

[MURZ50120P](https://www.mccsemi.com/products/diodes/super-fast-recovery-rectifiers/murz75120p)

[MURZ75120P](https://www.mccsemi.com/products/diodes/super-fast-recovery-rectifiers/murz50120p)

[Download Flyer](https://solutions.mccsemi.com/hubfs/NPI%20Flyers/Power%20Up%20Efficiency%20MCC%20Launches%201200V%20Super%20Fast%20Recovery%20Diodes%20in%20TO-247AD.pdf)

## Product Highlights   

1200V Super Fast Recovery Rectifier Diodes

### 1

###### High-Frequency Performance

Super fasst recovery time of 0.22 µs and low reverse recovery charge (Qrr) enable efficient operation at higher switching frequencies, supporting more compact and higher power-density designs.

1200V Super Fast Recovery Rectifier Diodes

### 2

###### Improved System Efficiency

Low forward voltage drop (Vf) of 1.85V significantly reduces conduction losses, boosting overall efficiency in PFC, UPS, and other high-power rectification stages.

1200V Super Fast Recovery Rectifier Diodes

### 3

###### Robustness Under Harsh Conditions

High surge current capability of 400A/500A and a rugged TO-247AD package provide strong resilience against inrush currents, faults, and transient events in demanding industrial environments.

1200V Super Fast Recovery Rectifier Diodes

### 4

###### Stable, Predictable Operation

Planar die structure and near zero temperature coefficient (ZTC) deliver consistent electrical performance over a wide temperature range, simplifying thermal design and improving design reliability. 

## Applications

The [MURZ50120P](https://www.mccsemi.com/products/diodes/super-fast-recovery-rectifiers/murz50120p) and [MURZ75120P](https://www.mccsemi.com/products/diodes/super-fast-recovery-rectifiers/murz75120p) are well suited for demanding high‑power systems where efficiency, ruggedness, and high-frequency performance are critical. Their 1200V rating, high current capability, and super fast, ultrasoft recovery behavior make them a strong fit across industrial power, power conversion, and backup power applications. 

| ![welding equipment application 500x300](https://solutions.mccsemi.com/hs-fs/hubfs/welding%20equipment%20application%20500x300.png?width=300&height=180&name=welding%20equipment%20application%20500x300.png) | ![switch-mode power supplies (SMPS) application - mcc semi - micro commercial components 500x300](https://solutions.mccsemi.com/hs-fs/hubfs/switch-mode%20power%20supplies%20(SMPS)%20application%20-%20mcc%20semi%20-%20micro%20commercial%20components%20500x300.png?width=315&height=189&name=switch-mode%20power%20supplies%20(SMPS)%20application%20-%20mcc%20semi%20-%20micro%20commercial%20components%20500x300.png) | ![UPS battery chargers application - mcc semi - 500x300](https://solutions.mccsemi.com/hs-fs/hubfs/UPS%20battery%20chargers%20application%20-%20mcc%20semi%20-%20500x300.png?width=306&height=184&name=UPS%20battery%20chargers%20application%20-%20mcc%20semi%20-%20500x300.png) |
| --- | --- | --- |
| Industrial Power & Automation  | Power Conversion & Power Quality  | Backup Power & Energy Infrastructure  |
| - Welding equipment (MIG/TIG/arc welders)  - Industrial power controllers and regulators  - Motor drives and soft starters  - Industrial battery chargers and DC power supplies  - High-current rectifiers for plating and electrolysis systems  | - Power Factor Correction (PFC) stages (boost PFC, totem-pole PFC)  - Front-end rectification in high-power SMPS and inverters  - Active and passive power conditioning systems  - High-frequency DC/DC converter input/output rectifiers  - Harmonic mitigation and power quality improvement equipment  | - Uninterruptible Power Supply (UPS) systems (offline, line-interactive, online)  - Data center and telecom backup power rectifier stages  - Energy storage systems (battery-based and hybrid) front-end rectification  - Emergency power systems and backup generators’ power conditioning units  |

 

## Product Attributes, Parametrics & Datasheet

| Product | Type | Package | IF(AV)(A)  | VRWM(V)  | VF (V) \[max\]@IF(A)  | Datasheet |
| --- | --- | --- | --- | --- | --- | --- |
| [MURZ50120P](https://www.mccsemi.com/products/diodes/super-fast-recovery-rectifiers/murz75120p) | Super Fast Recovery Rectifier   | [TO-247AD](https://www.mccsemi.com/pdf/productpackaging/TO-247AD%20Package.pdf) | 50 | 1200 | 1.85 | [Info](https://www.mccsemi.com/pdf/products/MURZ50120P(TO-247AD).pdf) |
| [MURZ75120P](https://www.mccsemi.com/products/diodes/super-fast-recovery-rectifiers/murz50120p) | Super Fast Recovery Rectifier   | [TO-247AD](https://www.mccsemi.com/pdf/productpackaging/TO-247AD%20Package.pdf) | 75 | 1200 | 1.85 | [Info](https://www.mccsemi.com/pdf/products/MURZ50120P(TO-247AD).pdf) |

 

Now available, purchase directly from MCC or through our authorized distributors.  

For technical inquiries or sample requests, [contact MCC](https://solutions.mccsemi.com/news/power-up-efficiency-mcc-launches-1200v-ultrafast-recovery-diodes-in-to-247ad#hs-chat-open) for support.  

For a deeper dive into MOSFET applications and design considerations, get our [essential guide.](https://solutions.mccsemi.com/the-essential-guide-to-40v-mosfet-functions-features)

 

###### Tags:

[New Product Introductions,](https://solutions.mccsemi.com/news/tag/new-product-introductions) [News,](https://solutions.mccsemi.com/news/tag/news) [MOSFETs](https://solutions.mccsemi.com/news/tag/mosfets)

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Post by [MCC](https://solutions.mccsemi.com/news/author/mcc)   
 December 16, 2025

 MCC is a leading integrated device manufacturer (IDM) of discrete semiconductors worldwide. Headquartered in the US, we deliver supply chain assurance, best-in-class support, and a diverse portfolio of 10,000+ advanced components to help customers innovate in automotive, industrial, and beyond.

#### Global Headquarters

130 W Cochran St, Unit B

Simi Valley, CA. 93065

[818.701.4933](tel:%20818.701.4933)

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---

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MCC is a manufacturer of high-quality discrete semiconductors to the consumer markets © MCC. All Rights Reserved ·  2026

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