STPST2H100AFY STMicroelectronics Schottky Diode (Small Outline Diode Flat Lead) In Stock
STPST2H100AFY is an automotive-grade 100 V, 2 A power Schottky trench rectifier from STMicroelectronics with a maximum forward voltage of 0.805 V and free-wheeling diode capability. It is housed in a compact flat-lead SODF-2 surface-mount package optimized for power conversion designs. In stock with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Small Outline Diode Flat Lead
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- STPST2H100AFY Datasheet PDF
- Category
- Schottky Diode
- Price
- From $0.1112(MOQ 10)
- Temp Range
- -40.0°C to 175.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 100 V reverse voltage rating with Schottky trench silicon technology delivering lower forward voltage (0.805 V max) than standard PN rectifiers for improved converter efficiency
- 2 A average forward current capacity in a compact SODF-2 flat-lead surface-mount package enabling high power density in automotive DC-DC converters
- Free-wheeling diode function with fast reverse recovery for synchronous rectification and inductive load switching in motor drives and solenoid circuits
- AEC-Q101 automotive-qualified construction covering -40°C to +175°C junction temperature for reliable operation in under-hood power management modules
Applications
The STPST2H100AFY is designed for automotive DC-DC converters, boost regulators, and battery management circuits operating on 12 V to 48 V vehicle power rails where low forward voltage drop and high reliability are essential. Its free-wheeling diode capability makes it suitable for H-bridge motor drivers and solenoid switching circuits in body control modules and ADAS subsystems. The AEC-Q101 qualification and 175°C junction temperature rating also fit power supply protection and reverse-polarity circuits in industrial and commercial vehicles.
Specifications
| Factory Lead Time | 19Weeks |
| YTEOL | 6 |
| Additional Feature | FREE WHEELING DIODE |
| Application | POWER |
| Configuration | SINGLE |
| Diode Element Material | SILICON |
| Diode Type | RECTIFIER DIODE |
| Forward Voltage-Max (VF) | 0.805V |
| JESD-30 Code | R-PDSO-F2 |
| JESD-609 Code | e3 |
| Non-rep Pk Forward Current-Max | 35A |
| Number of Elements | 1 |
| Number of Phases | 1 |
| Output Current-Max | 2A |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Reference Standard | AEC-Q101 |
| Rep Pk Reverse Voltage-Max | 100V |
| Reverse Current-Max | 2.7 µA |
| Reverse Test Voltage | 100V |
| Surface Mount | YES |
| Technology | SCHOTTKY |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | FLAT |
| Terminal Position | DUAL |
| Package | Small Outline Diode Flat Lead |
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
Compatible alternatives and drop-in replacements for STPST2H100AFY:
Rectifier Diode, Schottky, 1 Phase, 1 Element, 2A, 100V V(RRM), Silicon
Rectifier Diode, Schottky, 1 Phase, 1 Element, 2A, 100V V(RRM), Silicon
Rectifier Diode, Schottky, 1 Phase, 1 Element, 2A, 100V V(RRM), Silicon
Rectifier Diode, Schottky, 1 Phase, 1 Element, 2A, 100V V(RRM), Silicon
Frequently Asked Questions
What is the maximum forward voltage of the STPST2H100AFY, and how does it reduce power losses in a rectifier stage?
The STPST2H100AFY has a maximum forward voltage of 0.805 V at 2 A, which is significantly lower than the 1.0–1.2 V typical of standard silicon PN rectifiers. In a 2 A continuous-conduction boost converter, this 200–400 mV difference reduces rectifier conduction loss by 0.4–0.8 W, improving converter efficiency by 1–2 percentage points at full load.
At what reverse voltage is the STPST2H100AFY rated, and which automotive bus topologies does it support?
The STPST2H100AFY is rated for 100 V reverse blocking voltage, covering 12 V, 24 V, and 48 V automotive bus standards with adequate derating margin. In a 48 V mild-hybrid powertrain system, a 100 V rated diode provides over 2x voltage headroom above the nominal bus, satisfying automotive derating guidelines for transient voltage spikes up to 90 V.
How does the free-wheeling function of the STPST2H100AFY protect inductive loads in motor control designs?
When an inductive load such as a solenoid or DC motor winding is switched off, the collapsing magnetic field generates a back-EMF voltage spike that can exceed 100 V. The STPST2H100AFY clamps this spike by conducting the inductive freewheeling current with its 0.805 V forward drop, protecting the switching transistor and limiting overvoltage stress to within the 100 V reverse rating of the diode.
Which temperature range does the STPST2H100AFY cover, and how does this qualify it for under-hood automotive use?
The STPST2H100AFY supports a junction temperature range of -40°C to +175°C, meeting AEC-Q101 Grade 0 automotive requirements for the most thermally demanding under-hood environments. Ambient temperatures in engine compartments can reach 105°C continuously, and with a typical thermal resistance of 55°C/W, a 1 W dissipating STPST2H100AFY would still remain well within its 175°C junction limit on a standard PCB.
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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 |
|---|---|---|
| 10+ | $0.3700 | $3.70 |
| 100+ | $0.2385 | $23.85 |
| 500+ | $0.1380 | $69.00 |
| 1000+ | $0.1310 | $131.00 |
| 3000+ | $0.1240 | $372.00 |
| 15000+ | $0.1112 | $1668.45 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
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