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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

STMicroelectronics STPS130U

Name: STPS130U
Brand: STMicroelectronics
SKU: STPS130U
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STPS130U

Manufacturer:: STMicroelectronics

Category:: Single Diodes

Package:: DO-214AA, SMB

Datasheet:: STPS130U.pdf

Description:: DIODE SCHOTTKY 30V 1A SMB

Quantity:: RFQ Add To RFQ list

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Inventory:12,267

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Product details

Overview

STPS130U from STMicroelectronics is a 30 V, 1 A surface-mount Schottky rectifier in SMB package, optimized for high-frequency DC/DC converters and low-voltage secondary rectification with typical forward voltage of 0.37 V at 125 °C and 1 A. It features avalanche rating, ECOPACK2 compliance, and thermal resistance R_th(j-l) = 23 °C/W for efficient power dissipation in compact power supplies.

For engineers reviewing the STPS130U datasheet, STPS130U pinout, STPS130U application, or STPS130U equivalent, key selection criteria include forward voltage drop at elevated temperature, surge current capability (45 A), junction-to-lead thermal resistance, and SMB package footprint compatibility with board-level thermal management on FR4 PCBs.

Technical Context

This Schottky rectifier operates as a unidirectional low-loss power switch in synchronous rectification stages, where its low V_F minimizes conduction losses and its fast recovery eliminates reverse recovery charge. It is rated for continuous operation up to T_j = 150 °C and supports pulse avalanche energy up to 86 W at 10 µs.

The device uses planar Schottky barrier technology with metal–semiconductor junction, enabling zero reverse recovery time and stable performance across -65 °C to +150 °C ambient range. Its SMB package provides enhanced thermal coupling versus SMA variants via larger lead area and lower R_th(j-l).

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	30 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in buck or flyback secondary-side applications.
I_F(AV)	1 A - Average forward current at T_L = 135 °C in SMB package; sets continuous output current capability in DC/DC designs.
V_F(typ.)	0.37 V @ 1 A, 125 °C - Confirmed low conduction loss enabling >92% efficiency in 5 V/3.3 V secondary rails.
I_FSM	45 A @ 10 ms sinusoidal - Peak surge withstand for inrush or fault conditions without bond wire failure.
R_th(j-l)	23 °C/W - Junction-to-lead thermal resistance; enables direct heat transfer to PCB copper, critical for thermal reliability in sealed enclosures.
T_j(max)	+150 °C - Maximum junction temperature; allows operation in high-ambient telecom or industrial power modules.
ECOPACK2	Compliant - Halogen-free, RoHS-compliant packaging meeting EU environmental directives for industrial and consumer end equipment.

Pinout & Package

STPS130U is housed in an SMB (DO-214AA) surface-mount package with cathode band marking. The two-terminal device has no internal gate or control pins; polarity is defined by cathode band orientation during placement.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Input current entry point	Connected to switching node (e.g., MOSFET drain) in synchronous rectifier topology; must handle peak di/dt without parasitic inductance issues.
Cathode	Output current exit point	Connected to output rail; marked by band; requires low-impedance PCB pour for thermal and EMI performance.

Key Features

Feature	Design Value
Avalanche-rated	Withstands 86 W repetitive avalanche pulses at 10 µs, enabling robustness against inductive switching transients in DC/DC converters.
Low V_F at high T_j	0.37 V typ. @ 125 °C and 1 A - reduces conduction loss by ~35% vs. standard silicon diodes under thermal stress.
SMB thermal performance	R_th(j-l) = 23 °C/W - superior to SMA (30 °C/W), allowing higher power density in space-constrained telecom adapters.
ECOPACK2 compliance	Halogen-free, lead-free, RoHS-compliant - meets global environmental requirements for battery chargers and cordless appliances.
Optimized loss trade-off	Conduction/reverse leakage balance validated per AN4021 - ensures minimal total power loss across 10 kHz–1 MHz switching frequencies.

Applications

Battery Charger Secondary Rectification

Telecom DC/DC Converter Output Stage

Use Scenario: 12 V input, 5 V/2 A output buck converter in wall-mounted USB-C charger.

IC Role / Device Role / Timing Role: Low-loss synchronous rectifier replacing MOSFET driver complexity; conducts only during freewheeling phase.

Use Value: Reduces thermal load by 0.25 W vs. alternative 0.5 V Schottky, enabling smaller heatsink and higher power density.

Use Scenario: 48 V to 3.3 V isolated DC/DC module in base station power shelf.

IC Role / Device Role / Timing Role: Secondary-side rectifier in active clamp forward topology; handles 300 kHz switching with zero reverse recovery.

Use Value: Eliminates reverse recovery loss and associated EMI, improving conducted emissions margin by 8 dBµV.

SSD Power Rail Protection

Cordless Appliance Motor Drive Supply

Use Scenario: 19 V adapter feeding 3.3 V LDO for NVMe SSD controller and NAND flash.

IC Role / Device Role / Timing Role: Input protection rectifier preventing backfeed from LDO output during hot-swap events.

Use Value: Withstands 45 A surge without latch-up, ensuring system-level reliability during unexpected power sequencing.

Use Scenario: 21 V battery pack powering brushed motor and MCU in cordless drill.

IC Role / Device Role / Timing Role: Reverse polarity protection and freewheeling path for H-bridge flyback energy.

Use Value: Avalanche rating absorbs inductive kickback from motor commutation, eliminating need for external TVS.

Equivalent & Alternatives

The following parts are listed as comparable options for similar Schottky rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ON Semiconductor SB130	V_F = 0.55 V @ 25 °C, 1 A; R_th(j-l) = 25 °C/W; same SMB package.	Higher conduction loss at room temperature; less suitable for thermally constrained telecom modules.	Lower cost option where ambient temperature stays below 60 °C and efficiency targets are relaxed.
Vishay SS13	V_F = 0.45 V @ 125 °C, 1 A; I_FSM = 30 A; SMB package; no avalanche rating.	Lacks avalanche ruggedness; not recommended for motor drive or inductive load applications.	Better for low-cost consumer adapters where transient immunity is managed externally.

Compared with SB130 and SS13, STPS130U delivers the lowest verified V_F at elevated temperature and highest surge robustness, making it optimal for high-reliability, thermally demanding DC/DC and battery-powered systems requiring long-term stability.

Availability

STPS130U is available at Aetrix Electronics and suitable for telecom power supplies, battery chargers, and SSD power management requiring stable component supply and consistent SMB footprint compatibility across production batches.

Supply support for STPS130U includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, power, microcontroller, and sensor solutions for industrial, automotive, and consumer markets.

The STPS series targets high-efficiency, surface-mount power conversion with focus on Schottky rectifiers for DC/DC, adapter, and battery-fed applications-emphasizing thermal performance, avalanche ruggedness, and environmental compliance.

FAQ

What is the maximum junction temperature for STPS130U and how is it enforced?

The absolute maximum junction temperature is +150 °C, verified per absolute ratings table in DS0933 Rev 7. Operation above this limit risks irreversible degradation of the Schottky barrier. Designers must ensure thermal design satisfies (dP_tot/dT_j) < (1/R_th(j-a)) to prevent thermal runaway, especially when mounted on FR4 without extended copper pours.

Does STPS130U have a specified reverse recovery time (t_rr)?

No-STPS130U is a Schottky rectifier and exhibits no minority-carrier storage; therefore, it has effectively zero reverse recovery time and no Q_rr. This eliminates reverse recovery loss and associated EMI, confirmed by absence of t_rr parameter in all electrical characteristics tables and curves in the official datasheet.

Can STPS130U be used in parallel with other diodes or MOSFETs?

Yes-its positive temperature coefficient of forward voltage enables natural current sharing when paralleled with identical STPS130U units. It is explicitly designed for parallel use with MOSFETs in synchronous rectification, as stated in the product description and supported by thermal derating curves for δ = 0.5 square-wave operation.

Is the SMB package of STPS130U compatible with automated optical inspection (AOI) after reflow?

Yes-the SMB package has a standardized DO-214AA outline with visible cathode band and coplanar leads, fully supported by industry-standard AOI systems. ST's recommended footprint (Figure 17) includes 1.62 mm pad width and 2.18 mm length, ensuring reliable solder joint inspection for void detection and alignment verification.

STPS130U Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: DO-214AA, SMB

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Schottky

Voltage - DC Reverse (Vr) (Max):: 30 V

Current - Average Rectified (Io):: 1A

Voltage - Forward (Vf) (Max) @ If:: 550 mV @ 1 A

Speed:: Fast Recovery =< 500ns, > 200mA (Io)

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 10 µA @ 30 V

Capacitance @ Vr, F:: -

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SMB

Operating Temperature - Junction:: 150°C (Max)

STPS130U FAQ

1.How can I place an order for STPS130U through Aetrix?

Please submit a Request for Quotation (RFQ) for STPS130U on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for STPS130U reliable?

The price and inventory of STPS130U are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPS130U is usually 5 days.

3.What payment methods are accepted for STPS130U?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPS130U transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STPS130U?

STPS130U orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STPS130U order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for STPS130U?

For technical support, including STPS130U datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPS130U requirements.

6.How does Aetrix verify that STPS130U is sourced from the original manufacturer or authorized distributors?

All STPS130U products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STPS130U meets industry standards.

7.What is the process for return or replacement of STPS130U?

All STPS130U units undergo pre-shipment inspection (PSI). If there is an issue with STPS130U, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The STPS130U part is unused and in its original packaging.

Return procedure for STPS130U:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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