STTH4R02U Overview
The STTH4R02U is a high-performance ultrafast rectifier diode designed to meet demanding power conversion requirements. Featuring a maximum repetitive peak reverse voltage of 200 V and a forward current rating of 4 A, this device ensures efficient rectification with low forward voltage drop and fast recovery time. Ideal for industrial and consumer electronics, it delivers enhanced switching speed and reduced power losses, improving overall system efficiency. Manufactured by a leading IC Manufacturer, the STTH4R02U is optimized for applications requiring reliable, high-speed rectification in compact packages.
STTH4R02U Technical Specifications
| Parameter | Value | Unit |
|---|---|---|
| Maximum Repetitive Peak Reverse Voltage (VRRM) | 200 | V |
| Average Forward Current (IF(AV)) | 4 | A |
| Non-Repetitive Peak Surge Current (IFSM) | 70 | A |
| Forward Voltage Drop (VF) at IF=4A | 1.3 | V |
| Reverse Recovery Time (trr) | 75 | ns |
| Junction Temperature Range (Tj) | -65 to +175 | ??C |
| Storage Temperature Range (Tstg) | -65 to +175 | ??C |
| Package Type | DO-201AD | – |
STTH4R02U Key Features
- Ultrafast recovery time: With a reverse recovery time of 75 ns, it minimizes switching losses and electromagnetic interference in high-frequency circuits.
- High surge current capability: Supports non-repetitive peak surge currents up to 70 A, ensuring robustness during transient overloads.
- Low forward voltage drop: Reduces conduction losses, enhancing overall energy efficiency and thermal performance.
- Wide operating temperature range: Suitable for industrial environments with junction temperatures up to 175??C, guaranteeing reliability under harsh conditions.
Typical Applications
- High-frequency power supplies: Used for efficient rectification in switch-mode power supplies (SMPS) where fast switching and low losses are critical.
- Inverters: Supports power conversion in solar inverters and motor drives requiring high-speed diode switching.
- Freewheeling diodes in DC motor drives: Provides rapid recovery to improve system responsiveness and reduce voltage spikes.
- Snubber circuits: Protects switching devices by absorbing voltage transients in industrial converters and power electronics.
STTH4R02U Advantages vs Typical Alternatives
The STTH4R02U offers distinct advantages including faster reverse recovery time and lower forward voltage drop compared to standard rectifier diodes. This translates into improved switching efficiency and reduced heat dissipation, which are critical for compact, high-performance designs. Its high surge current rating and wide temperature tolerance further enhance reliability under demanding industrial conditions, making it a superior choice over typical slow or standard recovery diodes.
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STTH4R02U Brand Info
The STTH4R02U is a product from STMicroelectronics, a globally recognized semiconductor manufacturer known for innovation in power management and discrete components. STMicroelectronics specializes in delivering reliable, high-quality diodes and power devices used across automotive, industrial, and consumer electronics sectors. The STTH4R02U embodies ST??s commitment to performance and durability in power rectification applications.
FAQ
What is the maximum repetitive peak reverse voltage of this diode?
The diode supports a maximum repetitive peak reverse voltage of 200 V, meaning it can withstand reverse voltage spikes up to this level without breakdown, making it suitable for medium voltage applications.
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What is the significance of the ultrafast recovery time?
The ultrafast recovery time of 75 ns reduces switching losses and electromagnetic interference in circuits operating at high frequencies. This enhances overall efficiency and reliability in power conversion systems.
Can this diode handle surge currents in transient conditions?
Yes, it is rated for a non-repetitive peak surge current of 70 A, allowing it to tolerate short bursts of high current without damage, which is important for






