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

Taiwan Semiconductor Corporation 1N5401G R0G

Name: 1N5401G R0G
Brand: Taiwan Semiconductor Corporation
SKU: 1N5401G R0G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 1N5401G R0G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-201AD, Axial

Datasheet:: 1N5401G R0G.pdf

Description:: DIODE GEN PURP 100V 3A DO201AD

Quantity:: RFQ Add To RFQ list

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Product details

Overview

1N5401G R0G from Taiwan Semiconductor is a glass-passivated standard silicon rectifier diode rated for 3A average forward current and 100V repetitive peak reverse voltage in a DO-201AD package, featuring low forward voltage (1.1V at 3A, 25°C), high surge capability (125A, 8.3ms), and AEC-Q101 qualification option - used in DC-DC converters and switching-mode inverters.

For engineers reviewing the 1N5401G R0G datasheet, 1N5401G R0G pinout, 1N5401G R0G application, or 1N5401G R0G equivalent, key selection criteria include verified V_RRM = 100 V, I_F = 3 A, V_F ≤ 1.1 V, I_FSM = 125 A, and DO-201AD mechanical compatibility with automated through-hole assembly.

Technical Context

This device operates as a single-die, unidirectional power rectifier with a PN junction optimized for high-reliability industrial and automotive-grade power conversion. Its glass passivation ensures stable leakage performance across temperature, while the DO-201AD case supports thermal dissipation up to 45°C/W (junction-to-ambient) and 15°C/W (junction-to-case).

The 1N5401G R0G exhibits low capacitance (C_J = 25 pF at 1 MHz, 4 V), enabling use in moderate-frequency switching applications. Reverse leakage remains ≤5 µA at 25°C and ≤100 µA at 125°C under rated V_R, supporting stable operation in thermally demanding environments.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	100 V - Maximum non-repetitive reverse voltage before breakdown; defines safe operating limit in bridge or freewheeling configurations.
I_F	3 A - Continuous average forward current; determines heatsink sizing and PCB trace width requirements.
V_F	≤1.1 V @ 3 A, 25°C - Forward conduction loss directly impacts efficiency and thermal rise in power stages.
I_FSM	125 A @ 8.3 ms - Peak surge rating enables robustness against line transients and inrush currents.
T_J max	+150°C - Maximum junction temperature; sets upper bound for ambient + power-loss-derived temperature rise.
R_θJA	45°C/W - Thermal resistance from junction to ambient; used to calculate temperature rise without heatsink.

Pinout & Package

Package: DO-201AD - Axial-leaded, molded plastic case with cathode band marking; lead finish is pure tin, solderable per J-STD-002; meets UL 94V-0 and JESD201 Class 2 whisker resistance.

Pin/Terminal	Circuit Role	Design Meaning
Anode (Lead 1)	Forward current entry point	Connected to lower-potential side of AC source or switch node in flyback/freewheeling paths.
Cathode (Lead 2, banded end)	Forward current exit point	Connected to output rail or higher-potential node; polarity must be observed to prevent reverse breakdown.

Key Features

Feature	Design Value
Glass-passivated junction	Enables stable IR performance over temperature and humidity; eliminates need for conformal coating in harsh environments.
AEC-Q101 qualified version available	Validated for automotive power modules requiring reliability beyond standard industrial grade.
Low V_F and high I_FSM	Reduces conduction loss and improves transient immunity - critical for compact, high-efficiency SMPS designs.
RoHS and halogen-free compliance	Meets IEC 61249-2-21; supports environmentally regulated industrial and consumer product certifications.

Applications

DC-DC Converter Rectification	Switching Inverter Output Stage
Use Scenario: Secondary-side rectification in isolated flyback or forward converters delivering 5–24 V at up to 3 A. IC Role / Device Role / Timing Role: Unidirectional current steering diode converting high-frequency AC from transformer secondary to pulsating DC. Use Value: Low V_F minimizes power loss and thermal stress; 125 A surge rating absorbs transformer leakage energy during startup.	Use Scenario: Output rectification in single-phase H-bridge inverters driving resistive or inductive loads. IC Role / Device Role / Timing Role: Freewheeling path for inductive kickback during PWM dead-time intervals. Use Value: Fast recovery behavior (inherent in standard rectifier design) and robust I_FSM prevent voltage spikes and MOSFET failure.
Industrial Power Supply Input Bridge	Automotive Auxiliary Power Module
Use Scenario: Half-wave or full-wave rectification in 50/60 Hz line-fed industrial power supplies. IC Role / Device Role / Timing Role: Main AC-to-DC conversion element handling continuous 3 A load with minimal derating. Use Value: 150°C T_J max and 45°C/W R_θJA allow operation in enclosed cabinets without forced air cooling.	Use Scenario: 12 V battery-backed auxiliary supply in engine control units or body electronics modules. IC Role / Device Role / Timing Role: Reverse-polarity protection and input rectification in dual-input (battery + alternator) systems. Use Value: AEC-Q101-qualified variants ensure long-term reliability under vibration, thermal cycling, and load dump conditions.

DC-DC Converter Rectification

Switching Inverter Output Stage

Use Scenario: Secondary-side rectification in isolated flyback or forward converters delivering 5–24 V at up to 3 A.

IC Role / Device Role / Timing Role: Unidirectional current steering diode converting high-frequency AC from transformer secondary to pulsating DC.

Use Value: Low V_F minimizes power loss and thermal stress; 125 A surge rating absorbs transformer leakage energy during startup.

Use Scenario: Output rectification in single-phase H-bridge inverters driving resistive or inductive loads.

IC Role / Device Role / Timing Role: Freewheeling path for inductive kickback during PWM dead-time intervals.

Use Value: Fast recovery behavior (inherent in standard rectifier design) and robust I_FSM prevent voltage spikes and MOSFET failure.

Industrial Power Supply Input Bridge

Automotive Auxiliary Power Module

Use Scenario: Half-wave or full-wave rectification in 50/60 Hz line-fed industrial power supplies.

IC Role / Device Role / Timing Role: Main AC-to-DC conversion element handling continuous 3 A load with minimal derating.

Use Value: 150°C T_J max and 45°C/W R_θJA allow operation in enclosed cabinets without forced air cooling.

Use Scenario: 12 V battery-backed auxiliary supply in engine control units or body electronics modules.

IC Role / Device Role / Timing Role: Reverse-polarity protection and input rectification in dual-input (battery + alternator) systems.

Use Value: AEC-Q101-qualified variants ensure long-term reliability under vibration, thermal cycling, and load dump conditions.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ON Semiconductor 1N5401	V_F = 1.2 V max (vs. 1.1 V max); same I_F, V_RRM, I_FSM, and DO-201AD package.	No functional difference in most 100 V/3 A rectifier roles; slightly higher conduction loss may affect thermal margin in sealed enclosures.	Select when legacy ON Semi BOM alignment or distributor stock availability is prioritized.
Vishay 1N5401-E3/54	Same electrical specs; RoHS-compliant, but not AEC-Q101 qualified by default (requires specific ordering code).	Not suitable for automotive qualification-critical designs unless explicitly ordered with AEC-Q101 suffix.	Prefer for cost-sensitive industrial applications where automotive qualification is unnecessary.

Compared with ON Semiconductor 1N5401 and Vishay 1N5401-E3/54, the 1N5401G R0G offers identical core ratings but distinguishes itself via optional AEC-Q101 qualification and tighter V_F guarantee - making it preferable for automotive-adjacent or thermally constrained industrial power supplies.

Availability

1N5401G R0G is available at Aetrix Electronics and suitable for DC-DC converters, switching inverters, and industrial power supplies requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.

Supply support for 1N5401G R0G 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, automotive, and consumer markets since 1979.

The 1N5400G–1N5408G series was designed specifically for high-reliability, cost-effective AC/DC and DC/DC power conversion - emphasizing ruggedness, thermal stability, and compatibility with automated through-hole assembly processes.

FAQ

What is the maximum repetitive peak reverse voltage (V_RRM) for the 1N5401G R0G?

The 1N5401G R0G has a V_RRM of 100 V, as confirmed in the absolute maximum ratings table of Taiwan Semiconductor's K2105 datasheet. This value defines the highest reverse voltage the diode can block repeatedly without breakdown and is strictly validated for this specific variant - distinct from other members of the 1N540xG family such as the 1N5402G (200 V) or 1N5408G (1000 V).

Does the 1N5401G R0G have AEC-Q101 qualification?

The 1N5401G R0G is part of a family where AEC-Q101 qualification is available as an option - denoted by the "H" suffix (e.g., 1N5401GH). The base 1N5401G R0G part number does not inherently include AEC-Q101 certification unless explicitly ordered with that suffix; qualification status must be verified per order code and packaging label.

What is the forward voltage (V_F) specification for the 1N5401G R0G at rated current?

The 1N5401G R0G has a maximum forward voltage of 1.1 V at 3 A and 25°C, per the electrical specifications table in the K2105 datasheet. This value applies specifically to the 1N5401G and 1N5400G variants; higher-voltage members (e.g., 1N5402G–1N5408G) specify 1.0 V max under identical test conditions.

What package type does the 1N5401G R0G use, and what are its key mechanical properties?

The 1N5401G R0G uses the DO-201AD axial package: molded plastic case rated UL 94V-0, pure tin-plated leads compliant with J-STD-002, cathode polarity marked by a band, and approximate weight of 1.20 g. Its thermal resistance is R_θJA = 45°C/W and R_θJC = 15°C/W, enabling predictable thermal design without heatsinking in many applications.

How does the 1N5401G R0G compare to the 1N5402G in terms of voltage rating and application suitability?

The 1N5401G R0G is rated for 100 V V_RRM, whereas the 1N5402G is rated for 200 V. Both share identical I_F = 3 A, I_FSM = 125 A, and DO-201AD packaging. Use the 1N5401G R0G where 100 V blocking suffices - offering marginally lower V_F (1.1 V vs. 1.0 V) - and reserve the 1N5402G for designs requiring higher reverse voltage headroom, such as 120 VAC input rectification with safety margins.

1N5401G R0G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-201AD, Axial

Packaging:: Tape & Reel (TR)

Product Status:: Discontinued at Digi-Key

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 100 V

Current - Average Rectified (Io):: 3A

Voltage - Forward (Vf) (Max) @ If:: 1.1 V @ 3 A

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

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 5 µA @ 100 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

1N5401G R0G FAQ

1.How can I place an order for 1N5401G R0G through Aetrix?

Please submit a Request for Quotation (RFQ) for 1N5401G R0G 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 1N5401G R0G reliable?

The price and inventory of 1N5401G R0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5401G R0G is usually 5 days.

3.What payment methods are accepted for 1N5401G R0G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5401G R0G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 1N5401G R0G?

1N5401G R0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 1N5401G R0G 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 1N5401G R0G?

For technical support, including 1N5401G R0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5401G R0G requirements.

6.How does Aetrix verify that 1N5401G R0G is sourced from the original manufacturer or authorized distributors?

All 1N5401G R0G 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 1N5401G R0G meets industry standards.

7.What is the process for return or replacement of 1N5401G R0G?

All 1N5401G R0G units undergo pre-shipment inspection (PSI). If there is an issue with 1N5401G R0G, 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 1N5401G R0G part is unused and in its original packaging.

Return procedure for 1N5401G R0G:

1.Submit a request within 90 days.

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

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