STPS1L30U STMicroelectronics Diode (Diodes Moulded) In Stock
The STMicroelectronics STPS1L30U is a 1A 30V silicon Schottky rectifier diode with ultra-low 0.445V forward voltage in a compact 2-pin SMB (DO-214AA) package. It is optimized for free-wheeling and general-purpose rectification applications. Available from stock with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Diodes Moulded
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- STPS1L30U Datasheet PDF
- Category
- Diode
- Price
- From $0.0396(MOQ 1)
- Temp Range
- ?°C to 150.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Ultra-low 0.445V maximum forward voltage at 1A for minimal conduction losses and improved power efficiency
- 30V reverse breakdown voltage with 1A maximum forward current in a surface-mount SMB (DO-214AA) package
- Silicon Schottky technology enabling fast reverse recovery time (trr) near zero for high-frequency switching circuits
- Optimized for free-wheeling diode applications in DC-DC converters, motor drives, and switching power supplies
Applications
The STPS1L30U is commonly used as a free-wheeling diode across inductive loads such as relay coils, motor windings, and inductor-based DC-DC converter outputs. Its Schottky junction provides near-zero reverse recovery time, eliminating the switching losses associated with standard PN rectifiers in high-frequency power conversion circuits. The SMB package and low forward voltage make it a cost-effective choice for polarity protection, OR-ing, and output rectification in 5V to 24V power supply designs.
Specifications
| Factory Lead Time | 15Weeks |
| YTEOL | 4 |
| Additional Feature | FREE WHEELING DIODE |
| Application | GENERAL PURPOSE |
| Configuration | SINGLE |
| Diode Element Material | SILICON |
| Diode Type | RECTIFIER DIODE |
| Forward Voltage-Max (VF) | 0.445V |
| JEDEC-95 Code | DO-214AA |
| JESD-30 Code | R-PDSO-C2 |
| JESD-609 Code | e3 |
| Non-rep Pk Forward Current-Max | 75A |
| Number of Elements | 1 |
| Number of Phases | 1 |
| Output Current-Max | 1A |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Rep Pk Reverse Voltage-Max | 30V |
| Reverse Current-Max | 200 µA |
| Reverse Test Voltage | 30V |
| Surface Mount | YES |
| Technology | SCHOTTKY |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | C BEND |
| Terminal Position | DUAL |
| Package | Diodes Moulded |
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 | Mainland China |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What are the key electrical ratings of the STPS1L30U?
The STPS1L30U is rated for 30V maximum reverse voltage and 1A maximum average forward current. Its maximum forward voltage is 0.445V at 1A, significantly lower than standard silicon PN diodes (typically 0.7V). The Schottky junction also provides negligible reverse recovery time, making it suitable for switching frequencies above 1MHz.
What package does the STPS1L30U use and how is it mounted?
The STPS1L30U uses the SMB package (also known as DO-214AA, JEDEC-95 code DO-214AA), a 2-pin surface-mount molded package with JESD-30 code R-PDSO-C2. The SMB package is larger than SMA and smaller than SMC, offering a good balance of current handling and PCB footprint. It is compatible with standard SMT reflow soldering processes.
Why is the STPS1L30U recommended as a free-wheeling diode?
The STPS1L30U is listed with 'FREE WHEELING DIODE' as an additional feature because Schottky diodes inherently provide extremely fast switching with near-zero reverse recovery charge (Qrr). This prevents voltage spikes when inductive loads (relays, motors, solenoids) switch off, protecting driving transistors or MOSFETs without generating significant switching losses or EMI.
What is the advantage of using the STPS1L30U over a standard silicon rectifier?
Compared to standard silicon PN rectifiers, the STPS1L30U offers a much lower forward voltage drop (0.445V vs 0.7V typical), reducing power dissipation by approximately 35% at 1A. Additionally, its Schottky barrier junction eliminates the minority carrier storage effect, giving negligible reverse recovery time versus 100-500ns for standard rectifiers, which is critical for efficiency in switching power supplies above 100kHz.
Can the STPS1L30U be used for reverse polarity protection?
Yes, the STPS1L30U can serve as a series reverse polarity protection diode in low-current circuits up to 1A with input voltages up to 30V. Its low 0.445V forward drop minimizes the voltage lost compared to standard diodes (0.6-0.7V), making it particularly valuable in battery-powered systems where every millivolt of supply voltage matters for circuit headroom and regulation.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.0995 | $0.10 |
| 2500+ | $0.0396 | $99.10 |
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