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

Taiwan Semiconductor Corporation 1N5406G-K

Name: 1N5406G-K
Brand: Taiwan Semiconductor Corporation
SKU: 1N5406G-K
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 1N5406G-K

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-201AD, Axial

Datasheet:: 1N5406G-K.pdf

Description:: 3A, 600V, STANDARD RECTIFIER

Quantity:: RFQ Add To RFQ list

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Inventory:7,312

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Product details

Overview

1N5406G-K from Taiwan Semiconductor is a standard silicon rectifier diode in DO-201AD package, rated for 3 A average forward current, 600 V repetitive peak reverse voltage (V_RRM), and 125 A non-repetitive surge current, used in DC-DC converters and switching-mode power supplies.

For engineers reviewing the 1N5406G-K datasheet, 1N5406G-K pinout, 1N5406G-K application, or 1N5406G-K equivalent, key selection criteria include V_RRM = 600 V, I_F = 3 A, V_F ≤ 1.0 V @ 3 A, thermal resistance R_θJA = 45 °C/W, and DO-201AD mechanical compatibility.

Technical Context

This single-die, glass-passivated standard rectifier operates with junction temperature range of –55°C to +150°C and supports high-reliability industrial power conversion. Its low forward voltage (≤1.0 V at 3 A, 25°C) and high surge capability (125 A, 8.3 ms half-sine) enable efficient energy transfer under transient load conditions.

The device features pure tin-plated leads compliant with J-STD-002 solderability, UL 94V-0 molding compound, and cathode band polarity marking. Junction-to-case thermal resistance is 15 °C/W, supporting thermal management in compact PCB layouts.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	600 V - Maximum reverse voltage the diode blocks continuously without breakdown
I_F	3 A - Continuous average forward current rating at 75°C case temperature
I_FSM	125 A - Peak non-repetitive surge current tolerance for 8.3 ms half-sine waveform
V_F	≤1.0 V @ 3 A, 25°C - Low conduction loss enabling high-efficiency rectification
T_J max	+150°C - Maximum allowable junction temperature for reliable long-term operation
R_θJA	45 °C/W - Thermal resistance from junction to ambient, defining heatsinking requirements
C_J	25 pF @ 1 MHz, 4 V - Junction capacitance affecting high-frequency switching behavior

Pinout & Package

Package: DO-201AD axial-leaded plastic package with cathode band marking; 1.20 g weight; UL 94V-0 flammability rating; pure tin-plated leads.

Pin/Terminal	Circuit Role	Design Meaning
Anode (Lead 1)	Forward current entry point	Connected to lower-potential side of AC input or transformer secondary
Cathode (Lead 2, banded end)	Forward current exit point	Connected to positive output rail; polarity marking ensures correct orientation in bridge or discrete rectifier layout

Key Features

Feature	Design Value
Glass-passivated junction	Enhances moisture resistance and long-term reliability in humid or thermally cycled environments
Low V_F (≤1.0 V @ 3 A)	Reduces conduction losses by ~15% vs. legacy 1N54xx variants with 1.1 V drop, improving system efficiency
125 A I_FSM rating	Supports robust startup and fault-current handling in SMPS without derating or external fusing
RoHS & halogen-free compliance	Meets IEC 61249-2-21 and global environmental regulations for industrial and consumer electronics

Applications

AC-DC Front-End Rectification	DC-DC Converter Output Stage
Use Scenario: Full-wave rectification of 50/60 Hz AC mains or transformer-derived AC in offline power supplies. IC Role / Device Role / Timing Role: Discrete rectifier diode providing unidirectional current path and voltage conversion. Use Value: 600 V V_RRM safely withstands line-voltage transients; 3 A I_F supports up to 36 W continuous output in cost-sensitive designs.	Use Scenario: Secondary-side rectification in isolated flyback or forward converters delivering 5–24 V DC outputs. IC Role / Device Role / Timing Role: Standard rectifier converting high-frequency transformer output to regulated DC. Use Value: Low 1.0 V V_F minimizes conduction loss at 3 A load, reducing thermal stress on PCB traces and adjacent components.
Switching Inverter Input Stage	Industrial Motor Drive Snubber Circuit
Use Scenario: Input rectification in 3-phase or single-phase inverters converting AC to DC bus for IGBT/MOSFET switching stages. IC Role / Device Role / Timing Role: High-surge-capable rectifier handling repetitive line-frequency and harmonic currents. Use Value: 125 A I_FSM accommodates inrush during capacitor charging and short-circuit events without failure.	Use Scenario: Clamping and energy dissipation in snubber networks across IGBTs or relays in motor control modules. IC Role / Device Role / Timing Role: Fast-recovery-capable standard rectifier absorbing inductive kickback energy. Use Value: 600 V blocking voltage and 150°C T_J max ensure stable operation under repeated voltage spikes in 48 V–400 V drive systems.

AC-DC Front-End Rectification

DC-DC Converter Output Stage

Use Scenario: Full-wave rectification of 50/60 Hz AC mains or transformer-derived AC in offline power supplies.

IC Role / Device Role / Timing Role: Discrete rectifier diode providing unidirectional current path and voltage conversion.

Use Value: 600 V V_RRM safely withstands line-voltage transients; 3 A I_F supports up to 36 W continuous output in cost-sensitive designs.

Use Scenario: Secondary-side rectification in isolated flyback or forward converters delivering 5–24 V DC outputs.

IC Role / Device Role / Timing Role: Standard rectifier converting high-frequency transformer output to regulated DC.

Use Value: Low 1.0 V V_F minimizes conduction loss at 3 A load, reducing thermal stress on PCB traces and adjacent components.

Switching Inverter Input Stage

Industrial Motor Drive Snubber Circuit

Use Scenario: Input rectification in 3-phase or single-phase inverters converting AC to DC bus for IGBT/MOSFET switching stages.

IC Role / Device Role / Timing Role: High-surge-capable rectifier handling repetitive line-frequency and harmonic currents.

Use Value: 125 A I_FSM accommodates inrush during capacitor charging and short-circuit events without failure.

Use Scenario: Clamping and energy dissipation in snubber networks across IGBTs or relays in motor control modules.

IC Role / Device Role / Timing Role: Fast-recovery-capable standard rectifier absorbing inductive kickback energy.

Use Value: 600 V blocking voltage and 150°C T_J max ensure stable operation under repeated voltage spikes in 48 V–400 V drive systems.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH3L06S	Fast recovery (t_rr = 50 ns), TO-220AC package, 3 A / 600 V, V_F = 1.15 V	Better suited for high-frequency (>50 kHz) switching where reverse recovery matters	Select when EMI reduction or higher switching frequency is required; not drop-in due to package and thermal profile
1N5406	Same electrical specs but non-green, non-halogen-free variant; identical DO-201AD package and marking	No RoHS/halogen-free compliance; unsuitable for EU/Asia export or green-certified designs	Use only in legacy or cost-driven non-regulated markets where environmental compliance is not mandated

Compared with STTH3L06S and 1N5406, the 1N5406G-K delivers optimal balance of surge robustness, low conduction loss, and regulatory compliance in standard-frequency rectification-without requiring PCB redesign or thermal re-evaluation.

Availability

1N5406G-K is available at Aetrix Electronics and suitable for DC-DC converters, switching-mode inverters, and general-purpose industrial power supplies requiring stable component supply and long-lifecycle availability.

Supply support for 1N5406G-K 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

Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global industrial, computing, and consumer markets since 1979.

The 1N5406G-K belongs to TSC's standard rectifier family designed for cost-effective, high-reliability AC/DC and DC/DC power conversion in non-automotive industrial applications.

FAQ

What is the maximum repetitive peak reverse voltage (V_RRM) for the 1N5406G-K?

The 1N5406G-K has a V_RRM rating of 600 V, verified per Taiwan Semiconductor's C2105 datasheet. This value defines the highest reverse-biased voltage the diode can block repeatedly without avalanche breakdown. It is critical for selecting appropriate safety margins in 230 VAC or 400 VDC bus applications where line transients may exceed nominal voltage.

What is the forward voltage (V_F) of the 1N5406G-K at rated current?

The 1N5406G-K exhibits a maximum forward voltage of 1.0 V at 3 A and 25°C junction temperature, per the "ELECTRICAL SPECIFICATIONS" table in the official datasheet. This low V_F reduces power dissipation (P = I × V_F) to ≤3.0 W under full load, directly lowering thermal stress compared to higher-drop alternatives.

Is the 1N5406G-K RoHS and halogen-free compliant?

Yes, the 1N5406G-K is RoHS compliant and halogen-free per IEC 61249-2-21, as explicitly stated in the "FEATURES" section of the Taiwan Semiconductor datasheet (Version C2105). The "G" suffix denotes green compound, and the "-K" suffix indicates tape-and-reel packaging meeting environmental standards.

What package type does the 1N5406G-K use, and how is polarity identified?

The 1N5406G-K uses the DO-201AD axial-leaded plastic package. Polarity is indicated by a visible cathode band on the body-this banded end corresponds to the cathode terminal, which must be connected toward the positive output side in rectifier configurations to ensure proper current flow.

What is the surge current rating (I_FSM) of the 1N5406G-K, and under what conditions is it specified?

The 1N5406G-K has an I_FSM rating of 125 A for an 8.3 ms single half-sine wave, as defined in the "ABSOLUTE MAXIMUM RATINGS" table. This rating applies to non-repetitive surge events such as power-up inrush or short-circuit transients, and assumes no more than one such event per cycle under controlled thermal conditions.

1N5406G-K Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-201AD, Axial

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 600 V

Current - Average Rectified (Io):: 3A

Voltage - Forward (Vf) (Max) @ If:: 1 V @ 3 A

Speed:: Standard Recovery >500ns, > 200mA (Io)

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 5 µA @ 600 V

Capacitance @ Vr, F:: 25pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: DO-201AD

Operating Temperature - Junction:: -55°C ~ 150°C

1N5406G-K FAQ

1.How can I place an order for 1N5406G-K through Aetrix?

Please submit a Request for Quotation (RFQ) for 1N5406G-K 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 1N5406G-K reliable?

The price and inventory of 1N5406G-K are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5406G-K is usually 5 days.

3.What payment methods are accepted for 1N5406G-K?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5406G-K transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 1N5406G-K?

1N5406G-K orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 1N5406G-K 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 1N5406G-K?

For technical support, including 1N5406G-K datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5406G-K requirements.

6.How does Aetrix verify that 1N5406G-K is sourced from the original manufacturer or authorized distributors?

All 1N5406G-K 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 1N5406G-K meets industry standards.

7.What is the process for return or replacement of 1N5406G-K?

All 1N5406G-K units undergo pre-shipment inspection (PSI). If there is an issue with 1N5406G-K, 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 1N5406G-K part is unused and in its original packaging.

Return procedure for 1N5406G-K:

1.Submit a request within 90 days.

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

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