STTH2002DI STMicroelectronics Diode (Transistor Outline, Vertical) In Stock
STTH2002DI is a 20 A, 200 V ultra-fast recovery silicon rectifier diode with a 0.95 V maximum forward voltage for free-wheeling and switching power supply applications. It features ultra-fast reverse recovery suited for high-frequency converters in a through-hole TO-220AC 2-pin package. Available from stock worldwide with competitive pricing.
- Manufacturer
- STMicroelectronics
- Package
- Transistor Outline, Vertical
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- STTH2002DI Datasheet PDF
- Category
- Diode
- Temp Range
- ?°C to 175.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Ultra-fast recovery characteristic enables efficient operation in high-frequency switching power supplies and PFC stages
- 20 A average forward current rating with only 0.95 V maximum forward voltage drop for low conduction losses
- Free-wheeling diode configuration in TO-220AC package provides excellent thermal dissipation for high-power inductive loads
Applications
The STTH2002DI is used as a free-wheeling diode in motor drive inverters, switch-mode power supplies, and power factor correction circuits operating up to 200 V where ultra-fast recovery minimizes switching losses. Its 20 A current rating and robust TO-220AC through-hole package make it suitable for industrial UPS systems, welding equipment, and high-power DC-DC converters.
Specifications
| Factory Lead Time | 15Weeks |
| YTEOL | 5.87 |
| Additional Feature | FREE WHEELING DIODE |
| Application | ULTRA FAST RECOVERY |
| Configuration | SINGLE |
| Diode Element Material | SILICON |
| Diode Type | RECTIFIER DIODE |
| Forward Voltage-Max (VF) | 0.95V |
| JEDEC-95 Code | TO-220AC |
| JESD-30 Code | R-PSFM-T2 |
| JESD-609 Code | e3 |
| Non-rep Pk Forward Current-Max | 175A |
| Number of Elements | 1 |
| Number of Phases | 1 |
| Output Current-Max | 20A |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | FLANGE MOUNT |
| Qualification Status | Not Qualified |
| Rep Pk Reverse Voltage-Max | 200V |
| Reverse Recovery Time-Max | 0.04 µs |
| Surface Mount | NO |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | THROUGH-HOLE |
| Terminal Position | SINGLE |
| Package | Transistor Outline, Vertical |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8541.10.00.80 |
| Country of Origin | Mainland China |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the maximum repetitive reverse voltage the STTH2002DI can block in a switching power supply?
The STTH2002DI is rated for a maximum repetitive reverse voltage of 200 V, making it suitable for rectification stages in offline power supplies operating from 85 V to 132 V AC mains. Combined with its 20 A average forward current capability, it handles typical 100 W to 300 W converter designs without requiring external voltage-snubber circuits.
How does the ultra-fast recovery time of the STTH2002DI reduce losses in a motor drive freewheeling application?
In freewheeling diode duty, a slower recovery diode conducts a reverse current spike each time the motor switch turns on, dissipating extra energy as heat. The STTH2002DI ultra-fast recovery characteristic minimizes this reverse-recovery charge, reducing switching losses at the 20 A operating point and allowing the inverter to run at higher frequencies above 20 kHz without excessive diode heating.
What forward voltage drop should be expected when the STTH2002DI conducts 20 A in a high-current rectifier stage?
At full 20 A forward current, the STTH2002DI exhibits a maximum forward voltage of 0.95 V. This results in a worst-case conduction power loss of 19 W at full load, which the TO-220AC package can dissipate efficiently when mounted to a suitable heatsink with appropriate thermal interface material, keeping junction temperatures well within the rated maximum.
Related Guides
DP83848 10/100 Mbps Ethernet PHY Transceiver: How to Choose the Right Variant
A complete selection guide for the DP83848 family: compare temperature grades, packages, JTAG support, and interface options across all five variants.
Jun 2, 2026
LM5156 Wide-VIN Boost/SEPIC/Flyback Controller: How to Choose the Right Variant
A concise selection guide for the LM5156 and LM51561 family: how to choose between automotive vs industrial grade, spread-spectrum vs fixed-frequency, and WSON-8 vs HTSSOP-14 package.
Jun 2, 2026
24LC01B I2C EEPROM Design Guide: Pinout, Write Timing, and Package Selection
Complete application note for the Microchip 24LC01B 1 Kbit I2C EEPROM: address wiring, pull-up sizing, acknowledge polling, page-write alignment, and package selection.
Jun 1, 2026
AD8531ARTZ-REEL7 Application Note: High-Current Op-Amp Design Guide
A complete design guide for the AD8531ARTZ-REEL7 250 mA rail-to-rail op-amp: decoupling, thermal budgeting, capacitive load stability, and PCB layout best practices.
Jun 1, 2026
Why Buy from FindMyChip
About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”