STTH802SF STMicroelectronics Diode with Dual Anode (Other) In Stock
STTH802SF is a 200 V ultrafast recovery silicon rectifier diode from STMicroelectronics with 1.08 V maximum forward voltage in a TO-277A package. Designed for free-wheeling and snubber applications in switching power supplies. From $0.30 in stock with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Other
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- STTH802SF Datasheet PDF
- Category
- Diode with Dual Anode
- Price
- From $0.1486(MOQ 100)
- Temp Range
- ?°C to 175.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 200 V reverse voltage rating with ultrafast recovery time minimizes switching losses in high-frequency converters
- 1.08 V maximum forward voltage drop reduces conduction losses in free-wheeling and snubber circuits
- TO-277A (SMBFLAT) surface-mount package enables automated PCB assembly in compact power modules
Applications
STTH802SF is used as a free-wheeling diode in synchronous and non-synchronous buck, boost, and flyback converters operating at 200 V and below. Its ultrafast recovery characteristic reduces reverse-recovery charge at high switching frequencies above 100 kHz, minimizing EMI and power loss in motor drives and SMPS designs. The TO-277A surface-mount package suits dense power conversion boards in industrial power supplies, LED drivers, and PFC stages.
Specifications
| Factory Lead Time | 15Weeks |
| YTEOL | 6.45 |
| Additional Feature | FREE WHEELING DIODE, SNUBBER DIODE |
| Application | ULTRA FAST RECOVERY |
| Case Connection | CATHODE |
| Configuration | SINGLE |
| Diode Element Material | SILICON |
| Diode Type | RECTIFIER DIODE |
| Forward Voltage-Max (VF) | 1.08V |
| JEDEC-95 Code | TO-277A |
| JESD-30 Code | R-PDSO-F3 |
| JESD-609 Code | e3 |
| Non-rep Pk Forward Current-Max | 150A |
| Number of Elements | 1 |
| Number of Phases | 1 |
| Output Current-Max | 8A |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Rep Pk Reverse Voltage-Max | 200V |
| Reverse Current-Max | 6 µA |
| Reverse Recovery Time-Max | 0.035 µs |
| Reverse Test Voltage | 200V |
| Surface Mount | YES |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | FLAT |
| Terminal Position | DUAL |
| 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 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What reverse voltage and forward voltage does STTH802SF support in a switching converter?
STTH802SF is rated for 200 V reverse blocking voltage and has a maximum forward voltage drop of 1.08 V. These specifications make it suitable for offline power supply secondary rectification and free-wheeling in 48 V or 110 V bus topologies where both low conduction loss and reliable blocking are required.
Why is ultrafast recovery important for STTH802SF in high-frequency snubber designs?
In snubber and free-wheeling circuits operating above 100 kHz, a slow diode stores significant reverse-recovery charge that dissipates as heat during turn-off, increasing switch stress and EMI. STTH802SF's ultrafast recovery characteristic minimizes this stored charge to below 50 nC, reducing switching losses and allowing designers to operate at higher frequencies without derating the power stage.
How does the TO-277A package of STTH802SF compare to an axial-lead diode for a compact SMPS layout?
The TO-277A (SMBFLAT) surface-mount package of STTH802SF occupies a much smaller PCB footprint than axial DO-41 or DO-15 packages, enabling placement directly under a transformer bobbin or adjacent to a MOSFET in a high-density 50 W to 200 W SMPS. Surface mounting also eliminates lead inductance associated with through-hole diodes, improving switching transient behavior at frequencies above 100 kHz.
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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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 100+ | $0.3220 | $32.20 |
| 500+ | $0.2430 | $121.50 |
| 1000+ | $0.2350 | $235.00 |
| 18000+ | $0.2268 | $4081.68 |
| 24000+ | $0.1494 | $3585.12 |
| 48000+ | $0.1486 | $7133.28 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
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