This series is built for three things: a fast recovery, a stable recovery, and low loss. The package is TO-263M.
Why trr matters
A fast-recovery diode cuts switching loss by shortening reverse recovery. It is used in industrial, medical and new-energy equipment where high-frequency efficiency and reliability both matter.
In an adapter, an inverter or a server supply, that recovery sets the efficiency of the high-frequency power stage. A conventional FRD is slow at these frequencies. A shorter trr changes the design directly.
The LOW TRR ultrafast family is the part MHCHXM built for that job.
The two numbers
| Parameter | Meaning |
|---|---|
| trr | Time the reverse current is still flowing while stored minority carriers recombine or are swept out after the diode is forced off. |
| Qrr | Integral of that reverse current over time: the recovery charge that has to be removed. |
A larger Qrr means more stored charge, a taller recovery spike, and more loss and noise. A small Qrr recovers faster and suits high frequency.
Soft recovery
Soft recovery lets the reverse current fall to zero without a sharp edge: di/dt stays small, and the waveform does not ring or kick the voltage up. Two diodes can show the same trr and still differ a lot in loss and noise. A datasheet that looks excellent can still be noisy on the bench.
The soft-recovery series brings the reverse current down smoothly. The spike, the EMI and the loss are all smaller. That is what a high-frequency, high-voltage, high-efficiency supply needs.
Where to place it
| Circuit | Frequency and result |
|---|---|
| AC-DC secondary rectifier (flyback / forward / LLC) | 100 kHz to 500 kHz and up. Recovery loss drops, efficiency is typically 2% to 5% higher, and the voltage spike and EMI are smaller. |
| Boost PFC, 75 W to 300 W and above | About 65 kHz to 132 kHz in CCM. A conventional FRD near 100 ns can cost 3 to 5 efficiency points. Below 35 ns, PFC efficiency can reach 98% and the bus is steadier. |
| LLC, 65 W to 300 W fast charge, adapters, servers | The primary is soft-switched, but the secondary diode still recovers. Below 35 ns, secondary loss, ringing and EMI drop, and the frequency can move into 300 kHz to 1 MHz. |
| High-frequency DC-DC freewheel | 200 kHz to 1 MHz. Lower loss and a faster turn-off than a conventional FRD, so the dead time can be shorter. |
TO-263M
In the same application, TO-263M puts more power and better heat flow into a smaller outline, which is what the reliability number is actually buying.
- Height about 1.7 mm
- Lower loss and higher efficiency
- Pinout compatible with TO-263AB
- An industrial grade is available
- More rated power than TO-277 or DFN, while staying small
- MSL-1
- RoHS and SVHC
- About 60% thinner than a conventional TO-263
Recommended parts
Match the LOW TRR and TO-263M options below by voltage and current.
| Part | Package | VRRM (V) | IF (A) | Rated IF (A) | VF (V) | IR (µA) | trr (ns) | TJ max (°C) |
|---|---|---|---|---|---|---|---|---|
| SF40H02M | TO-263M-2L | 200 | 40 | 20 | 1.15 | 10 | 30 | 175 |
| SF20H03M | TO-263M-2L | 300 | 20 | 10 | 2.2 | 10 | 25 | 175 |
| SFD20H03M | TO-263M-2L | 300 | 20 | 10 | 2 | 10 | 25 | 175 |
| SF16H06M | TO-263M-2L | 600 | 16 | 8 | 2.3 | 10 | 25 | 175 |
| SF20H06M | TO-263M-2L | 600 | 20 | 10 | 2.8 | 10 | 25 | 175 |
| SFD20H06M | TO-263M-2L | 600 | 20 | 10 | 2.3 | 10 | 25 | 175 |
| SF30H06M | TO-263M-2L | 600 | 30 | 15 | 2.3 | 10 | 30 | 175 |
| SFD30H06M | TO-263M-2L | 600 | 30 | 15 | 2.2 | 10 | 30 | 175 |
| SF1002M | TO-263M-2L | 200 | 10 | 5 | 0.95 | 10 | 25 | 175 |
| SF1602M | TO-263M-2L | 200 | 16 | 8 | 0.975 | 10 | 25 | 175 |
| SF2002M | TO-263M-2L | 200 | 20 | 10 | 1 | 10 | 25 | 175 |
| SF4002M | TO-263M-2L | 200 | 40 | 20 | 1.05 | 10 | 30 | 175 |
| SFD2003M | TO-263M-2L | 300 | 20 | 10 | 1.3 | 10 | 30 | 175 |
| SF1604M | TO-263M-2L | 400 | 16 | 8 | 1.3 | 10 | 30 | 175 |
| SF2004M | TO-263M-2L | 400 | 20 | 10 | 1.3 | 10 | 30 | 175 |
| Part | Package | VRRM (V) | IF (A) | Rated IF (A) | VF (V) | IR (µA) | trr (ns) | TJ max (°C) |
|---|---|---|---|---|---|---|---|---|
| SFT10H02 | TO-220AB | 200 | 10 | 5 | 0.96 | 10 | 20 | 175 |
| SFFT10H02 | ITO-220AB | 200 | 10 | 5 | 0.96 | 10 | 20 | 175 |
| SFT10H02CD | TO-263-2L | 200 | 10 | 5 | 0.96 | 10 | 20 | 175 |
| SFT10H02CS | TO-252-2L | 200 | 10 | 5 | 0.96 | 10 | 20 | 175 |
| SFT16H02 | TO-220AB | 200 | 16 | 8 | 1.3 | 10 | 25 | 175 |
| SFT20H02 | TO-220AB | 200 | 20 | 10 | 1.35 | 10 | 25 | 175 |
| SFT30H02 | TO-220AB | 200 | 30 | 15 | 1.16 | 10 | 25 | 175 |
| SFFT16H02 | ITO-220AB | 200 | 16 | 8 | 1.3 | 10 | 25 | 175 |
| SFFT20H02 | ITO-220AB | 200 | 20 | 10 | 1.35 | 10 | 25 | 175 |
| SFFT30H02 | ITO-220AB | 200 | 30 | 15 | 1.16 | 10 | 25 | 175 |
| SFT16H02CD | TO-263-2L | 200 | 16 | 8 | 1.3 | 10 | 25 | 175 |
| SFT20H02CD | TO-263-2L | 200 | 20 | 10 | 1.35 | 10 | 25 | 175 |
| SFT30H02CD | TO-263-2L | 200 | 30 | 15 | 1.16 | 10 | 25 | 175 |
| SFT16H02CS | TO-252-2L | 200 | 16 | 8 | 1.3 | 10 | 25 | 175 |
| SFT20H02CS | TO-252-2L | 200 | 20 | 10 | 1.35 | 10 | 25 | 175 |
| SFPT16H02 | TO-247AB | 200 | 16 | 8 | 1.3 | 10 | 25 | 175 |
| SFPT20H02 | TO-247AB | 200 | 20 | 10 | 1.35 | 10 | 25 | 175 |
| SFPT30H02 | TO-247AB | 200 | 30 | 15 | 1.16 | 10 | 25 | 175 |
| SF802A | TO-220AC-A | 200 | 8 | 8 | 0.975 | 10 | 25 | 175 |
| SF1002 | TO-220AB | 200 | 10 | 5 | 0.95 | 10 | 25 | 175 |
| SF1002A | TO-220AC-A | 200 | 10 | 10 | 1 | 10 | 25 | 175 |
| SF1602 | TO-220AB | 200 | 16 | 8 | 0.975 | 10 | 25 | 175 |
| SF2002 | TO-220AB | 200 | 20 | 10 | 1 | 10 | 25 | 175 |
| SFF802A | ITO-220AC | 200 | 8 | 8 | 0.975 | 10 | 25 | 175 |
| SFF1002 | ITO-220AB | 200 | 10 | 5 | 0.95 | 10 | 25 | 175 |
| SFF1002A | ITO-220AC | 200 | 10 | 10 | 1 | 10 | 25 | 175 |
| SFF1602 | ITO-220AB | 200 | 16 | 8 | 0.975 | 10 | 25 | 175 |
| SFF2002 | ITO-220AB | 200 | 20 | 10 | 1 | 10 | 25 | 175 |
| SF1002CD | TO-263-2L | 200 | 10 | 5 | 0.95 | 10 | 25 | 175 |
| SFD1002CD | TO-263-2L | 200 | 10 | 5 | 0.95 | 10 | 25 | 175 |
| SF1602CD | TO-263-2L | 200 | 16 | 8 | 0.975 | 10 | 25 | 175 |
| SF2002CD | TO-263-2L | 200 | 20 | 10 | 1 | 10 | 25 | 175 |
| SF802ACS | TO-252-2L | 200 | 8 | 8 | 0.975 | 10 | 25 | 175 |
| SF802DCS | TO-252-2L | 200 | 8 | 8 | 0.975 | 10 | 25 | 175 |
| SF1002CS | TO-252-2L | 200 | 10 | 5 | 0.95 | 10 | 25 | 175 |
| Part | Package | VRRM (V) | IF (A) | Rated IF (A) | VF (V) | IR (µA) | trr (ns) | TJ max (°C) |
|---|---|---|---|---|---|---|---|---|
| SF1002ACS | TO-252-2L | 200 | 10 | 10 | 1 | 10 | 25 | 175 |
| SF1002DCS | TO-252-2L | 200 | 10 | 10 | 1 | 10 | 25 | 175 |
| SF1602CS | TO-252-2L | 200 | 16 | 8 | 0.975 | 10 | 25 | 175 |
| SF2002CS | TO-252-2L | 200 | 20 | 10 | 1 | 10 | 25 | 175 |
| SFP2002 | TO-247AB | 200 | 20 | 10 | 1 | 10 | 25 | 175 |
| SF802GY | TO-277 | 200 | 8 | 8 | 0.975 | 10 | 25 | 175 |
| SF1502GY | TO-277 | 200 | 15 | 15 | 1.05 | 10 | 25 | 175 |
| SF40H02 | TO-220AB | 200 | 40 | 20 | 1.15 | 10 | 30 | 175 |
| SFF40H02 | ITO-220AB | 200 | 40 | 20 | 1.15 | 10 | 30 | 175 |
| SF40H02CD | TO-263-2L | 200 | 40 | 20 | 1.15 | 10 | 30 | 175 |
| SFP40H02 | TO-247AB | 200 | 40 | 20 | 1.15 | 10 | 30 | 175 |
| SF1502A | TO-220AC-A | 200 | 15 | 15 | 1.02 | 10 | 30 | 175 |
| SF3002 | TO-220AB | 200 | 30 | 15 | 1.02 | 10 | 30 | 175 |
| SF4002 | TO-220AB | 200 | 40 | 20 | 1.05 | 10 | 30 | 175 |
| SFF4002 | ITO-220AB | 200 | 40 | 20 | 1.05 | 10 | 30 | 175 |
| SF1502NCD | TO-263-2L | 200 | 15 | 15 | 1.02 | 10 | 30 | 175 |
| SF2002NCD | TO-263-2L | 200 | 20 | 20 | 1.05 | 10 | 30 | 175 |
| SF4002CD | TO-263-2L | 200 | 40 | 20 | 1.05 | 10 | 30 | 175 |
| SFP3002 | TO-247AB | 200 | 30 | 15 | 1.02 | 10 | 30 | 175 |
| SFP4002 | TO-247AB | 200 | 40 | 20 | 1.05 | 10 | 30 | 175 |
| SF10H03A | TO-220AC-A | 300 | 10 | 10 | 2 | 10 | 25 | 175 |
| SFD20H03 | TO-220AB | 300 | 20 | 10 | 2 | 10 | 25 | 175 |
| SFF10H03A | ITO-220AC | 300 | 10 | 10 | 2 | 10 | 25 | 175 |
| SFF20H03 | ITO-220AB | 300 | 20 | 10 | 2 | 10 | 25 | 175 |
| SFFD20H03 | ITO-220AB | 300 | 20 | 10 | 2 | 10 | 25 | 175 |
| SF20H03CD | TO-263-2L | 300 | 20 | 10 | 2.2 | 10 | 25 | 175 |
| SF20H03DCD | TO-263-2L | 300 | 20 | 10 | 1.9 | 10 | 25 | 175 |
| SFD20H03CD | TO-263-2L | 300 | 20 | 10 | 2 | 10 | 25 | 175 |
| SF20H03CS | TO-252-2L | 300 | 20 | 10 | 2.2 | 10 | 25 | 175 |
| SFD20H03CS | TO-252-2L | 300 | 20 | 10 | 2 | 10 | 25 | 175 |
| SFP20H03 | TO-247AB | 300 | 20 | 10 | 2.2 | 10 | 25 | 175 |
| SFPD20H03 | TO-247AB | 300 | 20 | 10 | 2 | 10 | 25 | 175 |
| SFD2003 | TO-220AB | 300 | 20 | 10 | 1.3 | 10 | 30 | 175 |
| SFFD2003 | ITO-220AB | 300 | 20 | 10 | 1.3 | 10 | 30 | 175 |
| SF2003CD | TO-263-2L | 300 | 20 | 10 | 1.2 | 10 | 30 | 175 |
| Part | Package | VRRM (V) | IF (A) | Rated IF (A) | VF (V) | IR (µA) | trr (ns) | TJ max (°C) |
|---|---|---|---|---|---|---|---|---|
| SFD2003CD | TO-263-2L | 300 | 20 | 10 | 1.3 | 10 | 30 | 175 |
| SFPD2003 | TO-247AB | 300 | 20 | 10 | 1.3 | 10 | 30 | 175 |
| SF1003GY | TO-277 | 300 | 10 | 10 | 1.3 | 10 | 30 | 175 |
| SF1004 | TO-220AB | 400 | 10 | 5 | 1.3 | 10 | 30 | 175 |
| SF1604 | TO-220AB | 400 | 16 | 8 | 1.3 | 10 | 30 | 175 |
| SF2004 | TO-220AB | 400 | 20 | 10 | 1.3 | 10 | 30 | 175 |
| SFF804 | ITO-220AB | 400 | 8 | 4 | 1.22 | 10 | 30 | 175 |
| SFF804A | ITO-220AC | 400 | 8 | 8 | 1.3 | 10 | 30 | 175 |
| SFF1004 | ITO-220AB | 400 | 10 | 5 | 1.3 | 10 | 30 | 175 |
| SFF1604 | ITO-220AB | 400 | 16 | 8 | 1.3 | 10 | 30 | 175 |
| SF1004CD | TO-263-2L | 400 | 10 | 5 | 1.3 | 10 | 30 | 175 |
| SF1604CD | TO-263-2L | 400 | 16 | 8 | 1.3 | 10 | 30 | 175 |
| SF504ACS | TO-252-2L | 400 | 5 | 5 | 1.3 | 10 | 30 | 175 |
| SF1004CS | TO-252-2L | 400 | 10 | 5 | 1.3 | 10 | 30 | 175 |
| SF2004CS | TO-252-2L | 400 | 20 | 10 | 1.3 | 10 | 30 | 175 |
| SFP2004 | TO-247AB | 400 | 20 | 10 | 1.3 | 10 | 30 | 175 |
| SF504GY | TO-277 | 400 | 5 | 5 | 1.3 | 10 | 30 | 175 |
| SF1004GY | TO-277 | 400 | 10 | 10 | 1.3 | 10 | 30 | 175 |
| SFD5H06A | TO-220AC-A | 600 | 5 | 5 | 2 | 10 | 25 | 175 |
| SF8H06A | TO-220AC-A | 600 | 8 | 8 | 3.5 | 10 | 25 | 175 |
| SF10H06A | TO-220AC-A | 600 | 10 | 10 | 2.8 | 10 | 25 | 175 |
| SF15H06A | TO-220AC-A | 600 | 15 | 15 | 2.5 | 10 | 25 | 175 |
| SF16H06A | TO-220AC-A | 600 | 16 | 16 | 2.6 | 10 | 25 | 175 |
| SF16H06 | TO-220AB | 600 | 16 | 8 | 2.3 | 10 | 25 | 175 |
| SF20H06 | TO-220AB | 600 | 20 | 10 | 2.8 | 10 | 25 | 175 |
| SFD20H06 | TO-220AB | 600 | 20 | 10 | 2.3 | 10 | 25 | 175 |
| SFF8H06A | ITO-220AC | 600 | 8 | 8 | 2.3 | 10 | 25 | 175 |
| SFF10H06A | ITO-220AC | 600 | 10 | 10 | 2.8 | 10 | 25 | 175 |
| SFF12H06A | ITO-220AC | 600 | 12 | 12 | 2.4 | 10 | 25 | 175 |
| SFF16H06A | ITO-220AC | 600 | 16 | 16 | 2.6 | 10 | 25 | 175 |
| SFF16H06 | ITO-220AB | 600 | 16 | 8 | 2.3 | 10 | 25 | 175 |
| SFF20H06 | ITO-220AB | 600 | 20 | 10 | 2.8 | 10 | 25 | 175 |
| SFFD20H06 | ITO-220AB | 600 | 20 | 10 | 2.3 | 10 | 25 | 175 |
| SF16H06CD | TO-263-2L | 600 | 16 | 8 | 2.3 | 10 | 25 | 175 |
| SF16H06DCD | TO-263-2L | 600 | 16 | 16 | 2.6 | 10 | 25 | 175 |
| Part | Package | VRRM (V) | IF (A) | Rated IF (A) | VF (V) | IR (µA) | trr (ns) | TJ max (°C) |
|---|---|---|---|---|---|---|---|---|
| SF20H06CD | TO-263-2L | 600 | 20 | 10 | 2.8 | 10 | 25 | 175 |
| SFD20H06CD | TO-263-2L | 600 | 20 | 10 | 2.3 | 10 | 25 | 175 |
| SFD5H06NCS | TO-252-2L | 600 | 5 | 5 | 3.1 | 10 | 25 | 175 |
| SF6H06DCS | TO-252-2L | 600 | 6 | 6 | 2.1 | 10 | 25 | 175 |
| SF6H06NCS | TO-252-2L | 600 | 6 | 6 | 2.1 | 10 | 25 | 175 |
| SF8H06NCS | TO-252-2L | 600 | 8 | 8 | 2.3 | 10 | 25 | 175 |
| SF8H06DCS | TO-252-2L | 600 | 8 | 8 | 2.3 | 10 | 25 | 175 |
| SF10H06DCS | TO-252-2L | 600 | 10 | 10 | 3.8 | 10 | 25 | 175 |
| SF10H06ACS | TO-252-2L | 600 | 10 | 10 | 3.8 | 10 | 25 | 175 |
| SF10H06NCS | TO-252-2L | 600 | 10 | 10 | 3.8 | 10 | 25 | 175 |
| SF12H06NCS | TO-252-2L | 600 | 12 | 12 | 2.4 | 10 | 25 | 175 |
| SF16H06CS | TO-252-2L | 600 | 16 | 8 | 2.3 | 10 | 25 | 175 |
| SF20H06CS | TO-252-2L | 600 | 20 | 10 | 2.8 | 10 | 25 | 175 |
| SFP16H06 | TO-247AB | 600 | 16 | 8 | 2.3 | 10 | 25 | 175 |
| SF20H06 | TO-247AB | 600 | 20 | 10 | 2.8 | 10 | 25 | 175 |
| SFPD20H06 | TO-247AB | 600 | 20 | 10 | 2.3 | 10 | 25 | 175 |
| SF10H06GY | TO-277 | 600 | 10 | 10 | 2.3 | 10 | 25 | 175 |
| SFD15H06A | TO-220AC-A | 600 | 15 | 15 | 2.3 | 10 | 30 | 175 |
| SF20H06A | TO-220AC-A | 600 | 20 | 20 | 2.7 | 10 | 30 | 175 |
| SF30H06 | TO-220AB | 600 | 30 | 15 | 2.3 | 10 | 30 | 175 |
| SFF15H06A | ITO-220AC | 600 | 15 | 15 | 2.3 | 10 | 30 | 175 |
| SFFD16H06A | ITO-220AC | 600 | 16 | 16 | 2.28 | 10 | 30 | 175 |
| SFF20H06A | ITO-220AC | 600 | 20 | 20 | 2.7 | 10 | 30 | 175 |
| SFF30H06 | ITO-220AB | 600 | 30 | 15 | 2.3 | 10 | 30 | 175 |
| SFD15H06NCD | TO-263-2L | 600 | 15 | 15 | 2.3 | 10 | 30 | 175 |
| SF20H06ACD | TO-263-2L | 600 | 20 | 20 | 2.4 | 10 | 30 | 175 |
| SF20H06NCD | TO-263-2L | 600 | 20 | 20 | 2.7 | 10 | 30 | 175 |
| SF30H06CD | TO-263-2L | 600 | 30 | 15 | 2.3 | 10 | 30 | 175 |
| SF40H06CD | TO-263-2L | 600 | 40 | 20 | 2.7 | 10 | 30 | 175 |
| SFD15H06NCS | TO-252-2L | 600 | 15 | 15 | 2.3 | 10 | 30 | 175 |
| SFP30H06 | TO-247AB | 600 | 30 | 15 | 2.3 | 10 | 30 | 175 |
| SF15H06GY | TO-277 | 600 | 15 | 15 | 2.3 | 10 | 30 | 175 |
Beyond the parts above, the MHCHXM lineup also includes SiC diodes, SiC MOSFETs, MOSFETs, Schottky diodes, fast-recovery diodes, rectifier diodes and power transistors. The portfolio is refreshed on a regular cadence.
Samples and selection
Request datasheets or catalog samples via the sample / inquiry channel. Browse the product catalog or cross-reference tool.