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

Taiwan Semiconductor Corporation 1N5404GH

Name: 1N5404GH
Brand: Taiwan Semiconductor Corporation
SKU: 1N5404GH
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 1N5404GH

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-201AD, Axial

Datasheet:: 1N5404GH.pdf

Description:: DIODE GEN PURP 400V 3A DO201AD

Quantity:: RFQ Add To RFQ list

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Inventory:3,617

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Product details

Overview

1N5404GH from Taiwan Semiconductor is a glass-passivated, AEC-Q101-qualified standard rectifier diode in DO-201AD package, rated for 3A average forward current, 400V repetitive peak reverse voltage (V_RRM), and 125A non-repetitive surge current - used in automotive-grade DC-DC converters and switching inverters.

For engineers reviewing the 1N5404GH datasheet, 1N5404GH pinout, 1N5404GH application, or 1N5404GH equivalent, key selection criteria include V_RRM = 400 V, I_F = 3 A, V_F ≤ 1.0 V @ 3 A, T_J max = 150 °C, and AEC-Q101 qualification status for under-hood power conversion.

Technical Context

This single-die, axial-leaded rectifier operates as a unidirectional current path with low forward voltage drop and high thermal robustness. Its glass-passivated junction ensures stable leakage performance up to 125 °C, while the DO-201AD case supports 45 °C/W junction-to-ambient thermal resistance under free-air conditions.

The device delivers 125 A surge capability per 8.3 ms half-sine wave and maintains <5 µA reverse leakage at 25 °C and rated 400 V reverse bias - enabling reliable operation in transient-heavy switching power supplies and automotive auxiliary power modules.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	400 V - maximum repetitive reverse voltage before breakdown; defines safe operating range in 350–400 V DC bus applications
I_F	3 A - continuous average forward current; supports sustained conduction in 24–48 V industrial SMPS outputs
I_FSM	125 A - non-repetitive surge rating; handles inrush and fault currents in motor drive front-ends
V_F	≤1.0 V @ 3 A, 25 °C - low conduction loss; reduces power dissipation to ≤3.0 W at full load
T_J max	150 °C - maximum junction temperature; enables operation in under-hood automotive environments without derating
R_θJA	45 °C/W - thermal resistance; requires ≥1.5 cm² copper pad for 3 A continuous use at ambient ≤70 °C
I_R	≤5 µA @ 400 V, 25 °C - low leakage; preserves efficiency in high-impedance hold-up circuits

Pinout & Package

DO-201AD package: axial-leaded, molded epoxy case with cathode band marking; 1.20 g mass; UL 94V-0 rated compound; pure tin-plated leads compliant with J-STD-002 solderability.

Pin/Terminal	Circuit Role	Design Meaning
Anode (Lead 1)	Forward current entry	Connected to lower-potential side of AC input or transformer secondary; must withstand 125 A surge
Cathode (Lead 2, banded end)	Forward current exit / reverse blocking terminal	Connected to output rail; blocks 400 V reverse voltage; polarity critical for correct rectification

Key Features

Feature	Design Value
AEC-Q101 qualification	Validated for automotive power electronics including engine control modules and body electronics
Glass-passivated junction	Prevents moisture-induced degradation and ensures stable IR over 15-year service life
Low V_F (≤1.0 V)	Reduces conduction loss by ~15% vs. legacy 1N540x counterparts, improving thermal margin in sealed enclosures
125 A I_FSM	Supports direct connection to transformer secondaries without external fusing in 100–200 W designs
Halogen-free & RoHS	Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green manufacturing

Applications

Automotive DC-DC Converters	Industrial Switching Inverters
Use Scenario: Step-down conversion from 12 V or 24 V battery to regulated 5 V/3.3 V rails in telematics units and ADAS sensors. IC Role / Device Role / Timing Role: Output rectifier in synchronous or diode-based buck converter topologies. Use Value: AEC-Q101 qualification and 150 °C T_J max ensure reliability across -40 °C to +125 °C under-hood thermal cycling.	Use Scenario: AC-to-DC front-end in 1–2 kW variable-frequency drives for HVAC and pumps. IC Role / Device Role / Timing Role: Bridge rectifier element handling 3 A continuous and 125 A surge during motor startup. Use Value: 400 V V_RRM safely covers 280 V RMS line input with 20% tolerance; low V_F minimizes heat sink size.
General-Purpose Power Supplies	LED Driver Secondary Rectification
Use Scenario: Linear and switching power supplies for industrial PLC I/O modules and instrumentation. IC Role / Device Role / Timing Role: Main output rectifier delivering 3 A at 12–24 V with minimal voltage drop. Use Value: DO-201AD mechanical robustness and 45 °C/W R_θJA allow PCB-mounting without clip-on heatsinks in space-constrained designs.	Use Scenario: Secondary-side rectification in isolated flyback LED drivers for street lighting and commercial fixtures. IC Role / Device Role / Timing Role: High-efficiency rectifier converting transformer output to constant-current LED string supply. Use Value: ≤5 µA reverse leakage at 25 °C prevents capacitor discharge drift, maintaining precise dimming control over time.

Automotive DC-DC Converters

Industrial Switching Inverters

Use Scenario: Step-down conversion from 12 V or 24 V battery to regulated 5 V/3.3 V rails in telematics units and ADAS sensors.

IC Role / Device Role / Timing Role: Output rectifier in synchronous or diode-based buck converter topologies.

Use Value: AEC-Q101 qualification and 150 °C T_J max ensure reliability across -40 °C to +125 °C under-hood thermal cycling.

Use Scenario: AC-to-DC front-end in 1–2 kW variable-frequency drives for HVAC and pumps.

IC Role / Device Role / Timing Role: Bridge rectifier element handling 3 A continuous and 125 A surge during motor startup.

Use Value: 400 V V_RRM safely covers 280 V RMS line input with 20% tolerance; low V_F minimizes heat sink size.

General-Purpose Power Supplies

LED Driver Secondary Rectification

Use Scenario: Linear and switching power supplies for industrial PLC I/O modules and instrumentation.

IC Role / Device Role / Timing Role: Main output rectifier delivering 3 A at 12–24 V with minimal voltage drop.

Use Value: DO-201AD mechanical robustness and 45 °C/W R_θJA allow PCB-mounting without clip-on heatsinks in space-constrained designs.

Use Scenario: Secondary-side rectification in isolated flyback LED drivers for street lighting and commercial fixtures.

IC Role / Device Role / Timing Role: High-efficiency rectifier converting transformer output to constant-current LED string supply.

Use Value: ≤5 µA reverse leakage at 25 °C prevents capacitor discharge drift, maintaining precise dimming control over time.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH3L04S	TO-220AC package, 3 A / 400 V, V_F = 0.95 V @ 3 A, T_J max = 175 °C	Higher thermal capacity but requires mounting hardware; not axial-leaded	Preferred where board space allows heatsink attachment and higher surge margin is needed
ON Semi MUR440	Ultrafast recovery (t_rr = 50 ns), same DO-201AD, V_F = 1.25 V @ 3 A, V_RRM = 400 V	Designed for high-frequency SMPS (>100 kHz); higher V_F increases conduction loss	Select when EMI reduction or zero-voltage switching is required; avoid if thermal budget is tight

Compared with STTH3L04S and MUR440, the 1N5404GH offers AEC-Q101 qualification and lowest cost-per-amp in axial DO-201AD form factor, making it optimal for cost-sensitive, thermally moderate automotive and industrial rectification where ultrafast recovery is unnecessary.

Availability

1N5404GH is available at Aetrix Electronics and suitable for automotive power conversion, industrial switching inverters, and general-purpose DC power supplies requiring stable component supply, long-term lifecycle support, and AEC-Q101 compliance.

Supply support for 1N5404GH 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 automotive, industrial, and consumer markets since 1979.

The 1N540xG series targets cost-effective, high-reliability rectification in harsh-environment applications - engineered specifically for automotive under-hood systems and industrial power supplies demanding AEC-Q101 validation and extended temperature operation.

FAQ

What is the peak repetitive reverse voltage rating for the 1N5404GH?

The 1N5404GH has a repetitive peak reverse voltage (V_RRM) rating of 400 V. This value is confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version K2105), and defines the maximum reverse-bias voltage the device can block repeatedly without breakdown. It is not interchangeable with the 1N5406GH (600 V) or 1N5408GH (1000 V) variants.

Is the 1N5404GH qualified to AEC-Q101 standards?

Yes, the "H" suffix in 1N5404GH explicitly denotes AEC-Q101 qualification per Taiwan Semiconductor's ordering code documentation. This includes stress testing for temperature cycling, humidity bias, and high-temperature reverse bias - validating suitability for automotive power electronics such as body control modules and infotainment power supplies.

What is the forward voltage drop of the 1N5404GH at rated current?

The 1N5404GH exhibits a maximum forward voltage (V_F) of 1.0 V at 3 A forward current and 25 °C junction temperature, as specified in the Electrical Specifications table. This value applies to the 1N5402G through 1N5408G variants, distinguishing it from the 1N5400G/1N5401G group (V_F ≤ 1.1 V).

Which package type does the 1N5404GH use, and what are its key mechanical properties?

The 1N5404GH uses the DO-201AD package: an axial-leaded, epoxy-molded case with cathode band polarity marking. Key properties include UL 94V-0 flammability rating, pure tin-plated leads compliant with J-STD-002, 1.20 g typical weight, and JEDEC-standardized outline dimensions verified in the Package Outline Dimensions section.

Does the 1N5404GH have a specified junction-to-case thermal resistance?

Yes, the 1N5404GH has a junction-to-case thermal resistance (R_θJC) of 15 °C/W, as published in the Thermal Performance section of the datasheet. This parameter enables thermal modeling when mounted to a heatsink or metal-core PCB, and is distinct from the 45 °C/W junction-to-ambient (R_θJA) rating measured in free air.

1N5404GH 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:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Through Hole

Supplier Device Package:: DO-201AD

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

1N5404GH FAQ

1.How can I place an order for 1N5404GH through Aetrix?

Please submit a Request for Quotation (RFQ) for 1N5404GH 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 1N5404GH reliable?

The price and inventory of 1N5404GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5404GH is usually 5 days.

3.What payment methods are accepted for 1N5404GH?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5404GH transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 1N5404GH?

1N5404GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 1N5404GH 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 1N5404GH?

For technical support, including 1N5404GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5404GH requirements.

6.How does Aetrix verify that 1N5404GH is sourced from the original manufacturer or authorized distributors?

All 1N5404GH 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 1N5404GH meets industry standards.

7.What is the process for return or replacement of 1N5404GH?

All 1N5404GH units undergo pre-shipment inspection (PSI). If there is an issue with 1N5404GH, 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 1N5404GH part is unused and in its original packaging.

Return procedure for 1N5404GH:

1.Submit a request within 90 days.

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

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