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

Diodes Incorporated US1G-13-F

Name: US1G-13-F
Brand: Diodes Incorporated
SKU: US1G-13-F
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: US1G-13-F

Manufacturer:: Diodes Incorporated

Category:: Single Diodes

Package:: DO-214AC, SMA

Datasheet:: US1G-13-F.pdf

Description:: DIODE GEN PURP 400V 1A SMA

Quantity:: RFQ Add To RFQ list

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Inventory:35,752

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Product details

Overview

US1G-13-F from Diodes Incorporated is a 1.0A surface-mount ultra-fast rectifier diode with 400V peak repetitive reverse voltage (V_RRM), 50ns reverse recovery time (t_rr), and 1.7V forward voltage drop at 1.0A (V_FM). It is used in high-frequency switching power supplies, AC/DC adapters, and DC/DC converters where fast recovery and low conduction loss are critical.

For engineers reviewing the US1G-13-F datasheet, US1G-13-F pinout, US1G-13-F application, or US1G-13-F equivalent, key selection criteria include its SMA package thermal resistance (R_θJT = 30°C/W), surge rating (30A I_FSM), RoHS-compliant matte tin plating, and suitability for automated SMT assembly.

Technical Context

This ultra-fast rectifier employs glass-passivated die construction to ensure stable junction performance under repetitive surge stress. Its 50ns reverse recovery time enables operation in 100–500kHz SMPS topologies without excessive switching loss or EMI generation.

The device operates across –65°C to +150°C with a maximum junction-to-terminal thermal resistance of 30°C/W, supporting reliable thermal management in compact, sealed power modules where heatsinking is limited.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	400 V - Blocks up to 400V reverse voltage in bridge or flyback configurations without breakdown
t_rr	50 ns - Enables efficient high-frequency rectification with minimal reverse recovery loss
V_FM @ 1.0A	1.7 V - Limits conduction loss to ~1.7W at full rated current, reducing thermal load
I_FSM	30 A - Withstands 8.3ms half-sine surges common during AC line turn-on or output short events
R_θJT	30 °C/W - Allows direct PCB copper pour thermal coupling without external heatsink in ≤1W dissipation designs
I_O @ T_T = 75°C	1.0 A - Continuous average output current rating derated for terminal temperature, not ambient

Pinout & Package

US1G-13-F is housed in an SMA (DO-214AC) surface-mount plastic package with cathode band polarity marking. The two-terminal device has no internal connections beyond anode and cathode.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to input/source side in half-wave or bridge rectifier configurations
Cathode	Forward current exit point	Marked by band; connects to output/load side and determines polarity of DC output

Key Features

Feature	Design Value
Glass passivated die	Prevents moisture ingress and surface leakage, ensuring long-term reliability in humid environments
Ultra-fast 50ns recovery	Reduces switching loss and ringing in high-frequency flyback and forward converters
30A surge rating	Survives inrush currents in offline AC/DC inputs without degradation over 100,000 cycles
RoHS-compliant matte tin plating	Enables lead-free reflow soldering per JEDEC J-STD-020 Level 1, eliminating post-process cleaning

Applications

AC/DC Power Adapters

DC/DC Converter Outputs

Use Scenario: Secondary-side rectification in 5–65W wall adapters with universal AC input (90–264VAC).

IC Role / Device Role / Timing Role: Ultra-fast discrete rectifier replacing slower standard diodes to improve efficiency and reduce heat sink size.

Use Value: 50ns t_rr cuts reverse recovery loss by >60% vs. 1N4007, enabling higher switching frequencies and smaller magnetics.

Use Scenario: Output synchronous rectification in isolated 12V→5V/3.3V buck-derived converters.

IC Role / Device Role / Timing Role: Freewheeling diode in active-clamp or resonant LLC secondary stages.

Use Value: 1.7V V_FM at 1A ensures <1.7W conduction loss, minimizing thermal rise in space-constrained PCB layouts.

Industrial Motor Drives

LED Driver Circuits

Use Scenario: Snubber and clamp diode in IGBT gate drive protection and DC bus freewheeling paths.

IC Role / Device Role / Timing Role: Fast-recovery clamp diode absorbing inductive kickback energy during switching transitions.

Use Value: 30A I_FSM withstands repeated motor stall surges; 400V V_RRM covers 240VAC-derived bus voltages with margin.

Use Scenario: Bridge rectification in constant-current LED drivers for street lighting and commercial fixtures.

IC Role / Device Role / Timing Role: Input-stage rectifier converting AC line to bulk DC before PFC stage.

Use Value: Glass passivation prevents corrosion-induced leakage in outdoor enclosures; 150°C T_J rating supports high-ambient operation.

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultra-fast rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH1L06S	Same SMA package; 600V V_RRM, 65ns t_rr, 1.7V V_F - higher voltage rating but slower recovery	Better suited for 400–600V bus systems; less optimal for >300kHz designs due to longer t_rr	Select when higher reverse voltage margin is required and switching frequency is ≤200kHz
MBR140SFT1G	Schottky diode in SMA; 40V V_RRM, 0.55V V_F, no reverse recovery - lower loss but much lower voltage rating	Only viable in low-voltage DC/DC outputs (<40V); unsuitable for AC line rectification	Choose only for secondary-side rectification below 40V where ultra-low V_F outweighs voltage limitation

Compared with STTH1L06S and MBR140SFT1G, US1G-13-F uniquely balances 400V blocking, 50ns speed, and 1.7V conduction loss-making it optimal for universal-input 65W adapters and industrial 240VAC-fed power stages where both voltage headroom and switching efficiency matter.

Availability

US1G-13-F is available at Aetrix Electronics and suitable for AC/DC power adapters, industrial motor drives, and LED driver circuits requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.

Supply support for US1G-13-F 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.

The US1x series belongs to Diodes' ultra-fast rectifier product line, engineered specifically for high-efficiency, high-frequency power conversion in consumer, industrial, and computing power supplies.

FAQ

What is the maximum junction temperature for US1G-13-F?

The absolute maximum junction temperature is +150°C, and the device is rated for continuous operation across –65°C to +150°C storage and operating ranges. Thermal design must ensure junction temperature remains within this limit under worst-case power dissipation and ambient conditions.

Is US1G-13-F compatible with lead-free reflow soldering processes?

Yes - US1G-13-F features matte tin lead-free plating and meets J-STD-020 moisture sensitivity Level 1, allowing compatibility with standard Pb-free reflow profiles (peak temperature up to 260°C) without pre-baking or special handling.

Does US1G-13-F have a specified reverse recovery charge (Q_rr)?

No - the official Diodes Incorporated datasheet DS16008 Rev. 11-2 does not specify Q_rr; only t_rr (50ns) and I_RM (5.0µA @ 25°C) are provided. Designers requiring Q_rr should consult application notes or characterize using standard double-pulse test methods.

Can US1G-13-F replace US1J-13-F in a design?

No - US1J-13-F has 600V V_RRM, while US1G-13-F is rated for 400V. Substitution may cause premature failure under 600V transient conditions. Derating analysis and worst-case voltage stress evaluation are required before any cross-grade replacement.

US1G-13-F Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: DO-214AC, SMA

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 400 V

Current - Average Rectified (Io):: 1A

Voltage - Forward (Vf) (Max) @ If:: 1.3 V @ 1 A

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

Reverse Recovery Time (trr):: 50 ns

Current - Reverse Leakage @ Vr:: 5 µA @ 400 V

Capacitance @ Vr, F:: 20pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SMA

Operating Temperature - Junction:: -65°C ~ 150°C

US1G-13-F FAQ

1.How can I place an order for US1G-13-F through Aetrix?

Please submit a Request for Quotation (RFQ) for US1G-13-F 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 US1G-13-F reliable?

The price and inventory of US1G-13-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for US1G-13-F is usually 5 days.

3.What payment methods are accepted for US1G-13-F?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for US1G-13-F transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for US1G-13-F?

US1G-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your US1G-13-F 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 US1G-13-F?

For technical support, including US1G-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your US1G-13-F requirements.

6.How does Aetrix verify that US1G-13-F is sourced from the original manufacturer or authorized distributors?

All US1G-13-F 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 US1G-13-F meets industry standards.

7.What is the process for return or replacement of US1G-13-F?

All US1G-13-F units undergo pre-shipment inspection (PSI). If there is an issue with US1G-13-F, 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 US1G-13-F part is unused and in its original packaging.

Return procedure for US1G-13-F:

1.Submit a request within 90 days.

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

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