STTH802B STMicroelectronics Diode (Other) In Stock
STTH802B is a silicon ultra-fast recovery rectifier diode with 1.05 V maximum forward voltage rated for high-frequency switching circuits. Suitable for free-wheeling, boost converter, and rectification applications in a DO-215AB package. From $0.35 in stock worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Other
- Pin Count
- 3
- Lifecycle
- OBSOLETE
- Datasheet
- STTH802B 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 reverse recovery time enables low switching losses in high-frequency PFC and DC-DC converter topologies above 100 kHz
- 1.05 V maximum forward voltage and free-wheeling diode configuration minimize conduction losses in motor drive and inverter output stages
- DO-215AB power package with cathode connection provides rugged single-diode mounting for industrial rectifier and snubber circuits
Applications
STTH802B is used as a free-wheeling diode in brushless motor drive inverters, as an output rectifier in switching power supplies, and as a boost diode in power factor correction circuits operating at switching frequencies above 50 kHz. Its ultra-fast recovery characteristic reduces reverse recovery losses in half-bridge and full-bridge topologies used in industrial power converters and UPS systems.
Specifications
| YTEOL | 0 |
| Additional Feature | FREE WHEELING DIODE |
| Application | ULTRA FAST RECOVERY |
| Case Connection | CATHODE |
| Configuration | SINGLE |
| Diode Element Material | SILICON |
| Diode Type | RECTIFIER DIODE |
| Forward Voltage-Max (VF) | 1.05V |
| JESD-30 Code | R-PSSO-G2 |
| JESD-609 Code | e3 |
| Non-rep Pk Forward Current-Max | 100A |
| Number of Elements | 1 |
| Number of Phases | 1 |
| Output Current-Max | 8A |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Qualification Status | Not Qualified |
| Rep Pk Reverse Voltage-Max | 200V |
| Reverse Current-Max | 6 µA |
| Reverse Recovery Time-Max | 0.03 µs |
| Reverse Test Voltage | 200V |
| Surface Mount | YES |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Position | SINGLE |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8541.10.00.80 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What recovery speed and forward voltage does STTH802B offer for use in a high-frequency switching converter?
STTH802B is an ultra-fast recovery silicon rectifier diode with a maximum forward voltage of 1.05 V at rated current. Its ultra-fast reverse recovery time, typically in the range of 25 ns to 50 ns, reduces switching losses in converters operating at 50 kHz to 200 kHz, improving overall power supply efficiency compared to standard recovery diodes.
How does STTH802B perform as a free-wheeling diode in an inductive motor drive circuit?
As a free-wheeling diode in a motor drive, STTH802B clamps inductive kick voltages generated by motor winding commutation events. The ultra-fast reverse recovery ensures clean turn-off at motor PWM frequencies of 10 kHz to 50 kHz, preventing shoot-through in half-bridge stages and protecting the switching MOSFETs from reverse-recovery-induced voltage spikes.
What mounting package does STTH802B use and how does it compare to TO-220 rectifiers in a compact power supply?
STTH802B uses the DO-215AB surface-mount power package, which is smaller than the through-hole TO-220 while still capable of handling several amperes of forward current with appropriate PCB copper area. Compared to TO-220 rectifiers requiring 3 mm clearance holes, the DO-215AB SMD footprint reduces assembly cost and board height by approximately 8 mm in compact enclosed power supply designs.
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.”