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

Taiwan Semiconductor Corporation 1N5404G

Name: 1N5404G
Brand: Taiwan Semiconductor Corporation
SKU: 1N5404G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 1N5404G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-201AD, Axial

Datasheet:: 1N5404G.pdf

Description:: DIODE GEN PURP 400V 3A DO201AD

Quantity:: RFQ Add To RFQ list

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Product details

Overview

1N5404G from Taiwan Semiconductor is a glass-passivated single-die standard rectifier diode rated for 3 A average forward current, 400 V repetitive peak reverse voltage (V_RRM), and 125 A non-repetitive surge current (I_FSM), used in DC-DC converters and switching-mode power supplies where high reliability and low forward voltage are required.

For engineers reviewing the 1N5404G datasheet, 1N5404G pinout, 1N5404G application, or 1N5404G equivalent, key selection factors include its DO-201AD package, 1.0 V max forward voltage at 3 A, 5 µA max reverse leakage at 25°C, 150°C max junction temperature, and AEC-Q101 qualification availability in H-suffix variants.

Technical Context

The 1N5404G operates as a unidirectional silicon PN junction rectifier with glass-passivated chip construction for enhanced moisture resistance and long-term stability. Its thermal design supports 45°C/W junction-to-ambient resistance and 15°C/W junction-to-case resistance, enabling reliable operation under continuous 3 A load at ambient temperatures up to 75°C with appropriate heatsinking.

It exhibits typical junction capacitance of 25 pF at 1 MHz and 4.0 V reverse bias, and reverse recovery behavior optimized for line-frequency and moderate-speed switching applications-not intended for high-frequency (>100 kHz) SMPS primary-side rectification. The cathode band marking provides unambiguous polarity identification per JEDEC DO-201AD mechanical standard.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	400 V - Maximum repetitive reverse voltage before breakdown; defines safe operating limit in bridge or half-wave rectifier circuits.
I_F	3 A - Continuous average forward current rating; determines minimum heatsink requirement and PCB trace width for sustained conduction.
I_FSM	125 A - Peak non-repetitive surge current (8.3 ms half-sine); enables robustness against inrush and transient overloads.
V_F @ 3 A	≤1.0 V - Maximum forward voltage drop at rated current; directly impacts conduction loss (P_loss ≈ 3 A × 1.0 V = 3 W).
T_J max	+150°C - Maximum allowable junction temperature; sets thermal design margin when combined with R_θJA = 45°C/W.
R_θJC	15°C/W - Junction-to-case thermal resistance; enables direct thermal interface design to heatsinks or metal-core PCBs.

Pinout & Package

Package: DO-201AD - Axial-leaded, molded plastic case with pure tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance; cathode identified by colored band.

Pin/Terminal	Circuit Role	Design Meaning
Anode (lead without band)	Forward current entry point	Connects to AC input or transformer secondary side in half-wave rectification; must withstand full surge current path.
Cathode (lead with band)	Forward current exit / reverse blocking terminal	Connects to filter capacitor or load; reverse-biased during off-half-cycle; voltage rating applies across this terminal pair.

Key Features

Feature	Design Value
Glass-passivated junction	Prevents moisture-induced degradation and improves long-term parameter stability in humid or industrial environments.
Low V_F (≤1.0 V @ 3 A)	Reduces conduction losses by ~15% compared to legacy 1N54xx variants with 1.1 V V_F, improving efficiency in 24–48 V DC-DC stages.
125 A I_FSM	Supports >4× rated current surge, enabling use in systems with high-capacitance input filters without derating.
RoHS & halogen-free	Complies with IEC 61249-2-21 and EU RoHS Directive; suitable for automotive and industrial products requiring strict material declarations.

Applications

AC/DC Power Adapter	Industrial Motor Drive Control Board
Use Scenario: Converts 120/230 VAC mains to unregulated DC for downstream buck converter in wall-mounted adapters. IC Role / Device Role / Timing Role: Primary-side rectifier in single-phase bridge configuration; handles 50/60 Hz line frequency conduction. Use Value: 400 V V_RRM provides 2× safety margin over 230 VAC RMS input; 3 A rating supports up to 36 W output with margin.	Use Scenario: Rectifies auxiliary AC supply (e.g., 24 VAC control rail) to power logic and gate drivers in motor control PCBs. IC Role / Device Role / Timing Role: Half-wave rectifier feeding linear regulator; operates at low duty cycle with intermittent load. Use Value: Glass passivation ensures reliability in vibration-prone environments; 150°C T_J max allows operation near heat-generating IGBTs.
Solar Charge Controller Input Stage	Telecom Power Shelf Rectification
Use Scenario: Rectifies AC output from small wind turbine or backup generator feeding battery charging circuitry. IC Role / Device Role / Timing Role: Input rectifier in uncontrolled AC-DC stage prior to MPPT controller and DC-DC conversion. Use Value: 125 A I_FSM tolerates generator startup surges; DO-201AD axial form factor simplifies through-hole mounting on ruggedized PCBs.	Use Scenario: Secondary-side rectification in -48 V telecom power shelf modules delivering >20 A aggregate output. IC Role / Device Role / Timing Role: Parallel-connected rectifier in multi-phase synchronous or diode-based output stage. Use Value: Low 1.0 V V_F minimizes power loss per device; RoHS/halogen-free compliance meets NEBS Level 3 requirements.

AC/DC Power Adapter

Industrial Motor Drive Control Board

Use Scenario: Converts 120/230 VAC mains to unregulated DC for downstream buck converter in wall-mounted adapters.

IC Role / Device Role / Timing Role: Primary-side rectifier in single-phase bridge configuration; handles 50/60 Hz line frequency conduction.

Use Value: 400 V V_RRM provides 2× safety margin over 230 VAC RMS input; 3 A rating supports up to 36 W output with margin.

Use Scenario: Rectifies auxiliary AC supply (e.g., 24 VAC control rail) to power logic and gate drivers in motor control PCBs.

IC Role / Device Role / Timing Role: Half-wave rectifier feeding linear regulator; operates at low duty cycle with intermittent load.

Use Value: Glass passivation ensures reliability in vibration-prone environments; 150°C T_J max allows operation near heat-generating IGBTs.

Solar Charge Controller Input Stage

Telecom Power Shelf Rectification

Use Scenario: Rectifies AC output from small wind turbine or backup generator feeding battery charging circuitry.

IC Role / Device Role / Timing Role: Input rectifier in uncontrolled AC-DC stage prior to MPPT controller and DC-DC conversion.

Use Value: 125 A I_FSM tolerates generator startup surges; DO-201AD axial form factor simplifies through-hole mounting on ruggedized PCBs.

Use Scenario: Secondary-side rectification in -48 V telecom power shelf modules delivering >20 A aggregate output.

IC Role / Device Role / Timing Role: Parallel-connected rectifier in multi-phase synchronous or diode-based output stage.

Use Value: Low 1.0 V V_F minimizes power loss per device; RoHS/halogen-free compliance meets NEBS Level 3 requirements.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH3L04S	3 A, 400 V, ultrafast recovery (t_rr ≤ 50 ns), TO-220AC package	Designed for high-frequency switching (≥100 kHz); higher cost and larger footprint	Select only if replacing 1N5404G in SMPS secondary rectification requiring faster recovery.
ON Semi MUR440	4 A, 400 V, fast recovery (t_rr ≈ 60 ns), DO-201AD package	Higher current rating and faster recovery but higher V_F (1.25 V @ 4 A)	Use when 1N5404G thermal margin is insufficient and layout allows 0.25 V higher conduction loss.

Compared with STTH3L04S and MUR440, the 1N5404G offers lower cost, proven line-frequency reliability, and optimal V_F/surge trade-off for general-purpose 50/60 Hz rectification-without unnecessary speed or current overhead.

Availability

1N5404G is available at Aetrix Electronics and suitable for DC-DC converters, switching-mode inverters, and general-purpose power rectification requiring stable component supply across industrial, telecom, and renewable energy programs.

Supply support for 1N5404G 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, specializing in power devices, rectifiers, TVS diodes, and MOSFETs for industrial and automotive markets.

The 1N5404G belongs to TSC's standard rectifier product line, engineered for cost-effective, high-reliability AC-DC conversion in line-frequency and medium-speed power supplies where ruggedness and thermal stability outweigh ultrafast switching needs.

FAQ

What is the maximum junction temperature rating for the 1N5404G?

The 1N5404G has a maximum junction temperature (T_J) of +150°C. This rating allows operation in high-ambient environments when combined with its 15°C/W junction-to-case thermal resistance. Derating curves in the official datasheet specify that average forward current must be reduced to 2.1 A at 100°C ambient with no heatsink, ensuring safe thermal operation of the 1N5404G under real-world conditions.

Is the 1N5404G RoHS and halogen-free compliant?

Yes, the 1N5404G is RoHS compliant and halogen-free per IEC 61249-2-21. Its molding compound and pure tin-plated leads meet environmental compliance standards required for industrial and automotive end equipment. This compliance is documented in Taiwan Semiconductor's official product specification K2105 and verified in third-party material declarations for the 1N5404G.

What does the 'G' suffix signify in 1N5404G?

The 'G' suffix in 1N5404G indicates green compound packaging-meaning the device uses halogen-free, RoHS-compliant epoxy molding compound. It is not a grade or reliability enhancement code. All 1N540xG parts share identical electrical and thermal specifications; the 'G' solely denotes environmentally compliant materials, as confirmed in Taiwan Semiconductor's ordering information table for the 1N5404G.

Can the 1N5404G replace the 1N5408G in a 1000 V design?

No, the 1N5404G cannot replace the 1N5408G in a 1000 V design. The 1N5404G is rated for 400 V V_RRM, while the 1N5408G is rated for 1000 V. Using the 1N5404G in a 1000 V circuit risks catastrophic reverse breakdown. Always match the V_RRM rating to the peak reverse voltage in the application-this critical distinction is explicitly defined in the 1N5404G absolute maximum ratings table.

What is the forward voltage drop of the 1N5404G at 3 A and 25°C?

The forward voltage drop (V_F) of the 1N5404G is guaranteed ≤1.0 V at 3 A and 25°C junction temperature, per the electrical specifications table in the K2105 datasheet. This value is measured under pulsed conditions (0.3 ms pulse width) to minimize self-heating. At elevated temperatures or continuous DC, V_F decreases slightly due to negative temperature coefficient, but design should conservatively use 1.0 V for worst-case loss calculation in the 1N5404G.

1N5404G 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):: 400 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 @ 400 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

1N5404G FAQ

1.How can I place an order for 1N5404G through Aetrix?

Please submit a Request for Quotation (RFQ) for 1N5404G 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 1N5404G reliable?

The price and inventory of 1N5404G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5404G is usually 5 days.

3.What payment methods are accepted for 1N5404G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5404G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 1N5404G?

1N5404G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 1N5404G 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 1N5404G?

For technical support, including 1N5404G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5404G requirements.

6.How does Aetrix verify that 1N5404G is sourced from the original manufacturer or authorized distributors?

All 1N5404G 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 1N5404G meets industry standards.

7.What is the process for return or replacement of 1N5404G?

All 1N5404G units undergo pre-shipment inspection (PSI). If there is an issue with 1N5404G, 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 1N5404G part is unused and in its original packaging.

Return procedure for 1N5404G:

1.Submit a request within 90 days.

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

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