Product Detail
- Product: ultra fast recovery rectifier diode.
- Voltage: 50V-1000V.
- Series: UF, SF, ES.
- Use case: SMPS boards.
Product Description
This ultra fast recovery rectifier diode page is for power circuits where standard or ordinary fast rectifiers create too much recovery loss. You can compare UF, SF, ES and related ultrafast rectifier series by reverse voltage, current, recovery time, forward drop, surge rating, package and temperature. These parts are used in SMPS, inverters, LED drivers, chargers, converters and snubber paths. Lian Tuo helps you match recovery speed to the actual waveform so the diode improves the circuit rather than only changing the part number. That keeps ultrafast recovery tied to the actual waveform.
Our Ultra Fast Recovery Rectifier Diode Options
| UF Ultra Fast Recovery Rectifier Diode | Ultrafast axial and SMD families for compact high-frequency rectification. |
| SF Ultra Fast Recovery Rectifier Diode | Super-fast direction for converter boards needing stronger speed margin. |
| ES Ultra Fast Recovery Rectifier Diode | SMD package route for automated high-speed rectifier assembly. |
| High Voltage Ultrafast Rectifier Diode | 1000V class options for recovery-sensitive high-voltage paths. |
| Low Loss Recovery Diode | Selection path when recovery heat and efficiency need joint review. |
Feature Box
- Very Fast RecoveryUltrafast behavior reduces switching recovery stress.
- Wide Voltage50V-1000V options support varied converter rails.
- Package RangeAxial and SMD families can match production needs.
- Waveform ReviewSelection follows frequency, current and thermal stress.
Use Speed Where It Matters
An ultra fast recovery rectifier diode is valuable when reverse recovery changes efficiency, heat or EMI. It should be selected from the actual switching waveform, not from a general wish for a faster part. Speed matters most when current reverses quickly. It also helps avoid replacing a high-speed diode by rating alone.
Balance Loss And Package
Ultrafast recovery can reduce switching loss, but forward drop and package temperature still matter. An ultra fast recovery rectifier diode should be reviewed by current, voltage, duty cycle and board airflow. The fastest part is not always the coolest one. That keeps ultrafast recovery tied to the actual waveform. It also helps avoid replacing a high-speed diode by rating alone.
Select UF SF Or ES
UF, SF and ES families can serve different voltage, package and production needs. An ultra fast recovery rectifier diode request should identify whether the board needs axial through-hole, SMD reel supply or a higher-current package. It also helps avoid replacing a high-speed diode by rating alone. That keeps ultrafast recovery tied to the actual waveform.
Protect Approved Performance
A standard rectifier with the same voltage and current can still fail a high-frequency waveform. Lian Tuo can compare ultra fast recovery rectifier diode equivalents by recovery time, package and heat so replacement sourcing keeps the circuit behavior. That keeps ultrafast recovery tied to the actual waveform. It also helps avoid replacing a high-speed diode by rating alone.
Vertical Product Applications
SMPS Output Rectification
Use an ultra fast recovery rectifier diode in SMPS output rectification when recovery loss affects temperature or switching quality. The device should match voltage, current and frequency before production approval. It also helps avoid replacing a high-speed diode by rating alone. That keeps ultrafast recovery tied to the actual waveform.
Inverter Auxiliary Paths
Inverter auxiliary paths can need fast high-voltage rectifiers around clamps, supplies and snubber nodes. An ultra fast recovery rectifier diode helps when recovery behavior and surge stress are reviewed together. That keeps ultrafast recovery tied to the actual waveform. It also helps avoid replacing a high-speed diode by rating alone.
LED Driver Converters
LED driver converters often run in compact, warm housings. An ultra fast recovery rectifier diode can reduce recovery-related heat when package, output current and switching frequency are matched. It also helps avoid replacing a high-speed diode by rating alone. That keeps ultrafast recovery tied to the actual waveform. It also helps avoid replacing a high-speed diode by rating alone.
FAQ
When should I choose an ultra fast recovery rectifier diode?
Choose it when reverse recovery affects heat, efficiency, EMI or switching stress. It is common in SMPS, LED drivers, inverters and converter circuits with faster waveforms. It also helps avoid replacing a high-speed diode by rating alone. That keeps ultrafast recovery tied to the actual waveform.
What is the difference between fast and ultra fast recovery?
Ultra fast parts generally have shorter reverse recovery time and are used in more recovery-sensitive circuits. Exact values vary by model, so compare datasheets with your waveform. That keeps ultrafast recovery tied to the actual waveform. It also helps avoid replacing a high-speed diode by rating alone.
Can UF4007 replace a general rectifier?
Sometimes, if voltage, current, surge and package fit. The circuit should benefit from faster recovery, and thermal behavior should still be checked before replacement approval. It also helps avoid replacing a high-speed diode by rating alone. That keeps ultrafast recovery tied to the actual waveform.
What data helps quote ultrafast rectifiers?
Send voltage, current, recovery target, switching frequency, package, old marking and quantity. Mention whether the part sits in rectifier, clamp, snubber or auxiliary supply paths. That keeps ultrafast recovery tied to the actual waveform. It also helps avoid replacing a high-speed diode by rating alone.
Can ultrafast rectifiers replace Schottky diodes?
Only after review. Schottky and ultrafast PN diodes have different forward drop, leakage and recovery behavior. Voltage rating and loss target should guide the choice. It also helps avoid replacing a high-speed diode by rating alone. That keeps ultrafast recovery tied to the actual waveform.
Do these diodes need special packages?
Package depends on current and heat. DO-41, DO-15, DO-201AD, SMA, SMB and other SMD packages can be used when the thermal path fits the design. That keeps ultrafast recovery tied to the actual waveform. It also helps avoid replacing a high-speed diode by rating alone.
Can Lian Tuo support ultrafast equivalents?
Yes. We can compare UF, SF, ES and ultra fast recovery rectifier diode equivalents by voltage, current, recovery time, package and application. It also helps avoid replacing a high-speed diode by rating alone. That keeps ultrafast recovery tied to the actual waveform.
