Product Detail
- Product: medium high voltage diode.
- Voltage: 200V-600V.
- Models: 1N4004, FR106.
- Use case: auxiliary supplies.
Product Description
This medium high voltage diode page is for circuits that need 200V to 600V blocking capability without the size or cost of heavier high-voltage families. You can compare 1N4004, 1N4005, 1N4006, FR106, UF4006 and glass passivated equivalents by reverse voltage, forward current, recovery speed, leakage, package and board clearance. The range fits auxiliary supplies, moderate DC buses, small rectifier stages and blocking positions. Lian Tuo helps you confirm whether standard, fast or ultrafast behavior is more suitable before samples are chosen. That keeps the diode choice matched to the actual board position.
Our Medium High Voltage Diode Options
| 1N4004 Medium High Voltage Diode | 400V standard-recovery choice for low-frequency rectifier and blocking positions. |
| 1N4006 Medium High Voltage Diode | 600V axial option for compact mains-related boards needing more margin. |
| FR106 Medium High Voltage Diode | Fast-recovery route when switching speed matters more than line-frequency behavior. |
| UF4006 Medium High Voltage Diode | Ultrafast option for compact converters and snubber-related positions. |
| Glass Passivated Medium HV Diode | Leakage-stable direction for designs needing stronger junction passivation. |
Feature Box
- Voltage Margin200V-600V classes suit moderate DC bus designs.
- Recovery ChoiceStandard, fast and ultrafast options can be compared.
- Compact FitDO-41 style packages suit dense through-hole boards.
- Leakage ReviewGlass passivated options support stable blocking behavior.
Choose Margin Without Bulk
A medium high voltage diode gives you blocking voltage above low-voltage rectifiers while staying compact. It is useful when the circuit sits around moderate bus voltage and board space is tight. Confirm actual peak reverse voltage before moving to a larger package or a higher-voltage family. It also helps avoid paying for voltage range the circuit does not need.
Match Recovery To Frequency
Line-frequency rectifiers can use standard-recovery parts, while switching supplies may need FR or UF families. A medium high voltage diode should be selected by waveform speed as well as voltage. Using a slow diode in a fast node can create heat and noise. That keeps the diode choice matched to the actual board position.
Check Clearance And Package
Even at 200V to 600V, board spacing and package body matter in compact supplies. A medium high voltage diode replacement should match lead pitch, body size, voltage class and assembly method. The electrical rating should fit the physical board position. It also helps avoid paying for voltage range the circuit does not need.
Separate Blocking From Rectifying
A diode used only for blocking may have different current and recovery needs than a diode carrying rectifier current. Lian Tuo can help compare medium high voltage diode choices by duty, current, waveform and package so the shortlist reflects the actual position. That keeps the diode choice matched to the actual board position.
Vertical Product Applications
Auxiliary Power Supplies
Use a medium high voltage diode in auxiliary power supplies where compact rectification needs 200V to 600V blocking margin. The selected model should match recovery speed, current and package before the board layout is fixed. It also helps avoid paying for voltage range the circuit does not need. That keeps the diode choice matched to the actual board position.
Moderate DC Bus Circuits
Moderate DC bus circuits may need a diode that handles voltage spikes without taking too much board room. A medium high voltage diode gives practical margin when leakage and reverse recovery are reviewed for the bus waveform. That keeps the diode choice matched to the actual board position. It also helps avoid paying for voltage range the circuit does not need.
Compact Blocking Positions
Compact blocking positions need a diode that fits the original body and voltage target. A medium high voltage diode can work well when peak reverse voltage, lead spacing and current duty are confirmed before replacement. It also helps avoid paying for voltage range the circuit does not need. That keeps the diode choice matched to the actual board position.
FAQ
When should I choose a medium high voltage diode?
Choose it when the circuit needs 200V to 600V reverse-voltage capability in a compact package. It suits auxiliary supplies, moderate DC buses and blocking positions with controlled current and spacing. It also helps avoid paying for voltage range the circuit does not need.
Is 1N4006 suitable for 600V applications?
1N4006 is commonly used as a 600V standard rectifier direction, but you should confirm current, surge, package and recovery speed. Switching circuits may need a fast or ultrafast alternative. That keeps the diode choice matched to the actual board position.
When should I use FR106 or UF4006?
Use FR106 or UF4006 when the diode works in a faster switching path. Recovery time can affect heat, EMI and efficiency, so it should be reviewed with the actual waveform. It also helps avoid paying for voltage range the circuit does not need.
What data helps quote 200V-600V diodes?
Send required reverse voltage, forward current, waveform frequency, package, surge condition, old marking and quantity. A board photo helps confirm body size and lead spacing for replacement work. That keeps the diode choice matched to the actual board position. It also helps avoid paying for voltage range the circuit does not need.
Can 600V replace 400V in the same package?
Sometimes, if forward current, recovery speed, leakage and package match. Higher voltage rating can add margin, but it does not automatically solve thermal or switching-speed problems. It also helps avoid paying for voltage range the circuit does not need. That keeps the diode choice matched to the actual board position.
Does leakage matter in this voltage range?
Yes. Leakage can affect standby loss, sensing accuracy or heat in high-impedance circuits. Glass passivated medium high voltage diode options may help where stable reverse blocking is important. That keeps the diode choice matched to the actual board position. It also helps avoid paying for voltage range the circuit does not need.
Can Lian Tuo support medium HV equivalents?
Yes. We can compare 1N4004-1N4006, FR106, UF4006 and glass passivated medium high voltage diode options by voltage, recovery, package and current requirement. It also helps avoid paying for voltage range the circuit does not need. That keeps the diode choice matched to the actual board position.
