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

Taiwan Semiconductor Corporation 1N4003G

Name: 1N4003G
Brand: Taiwan Semiconductor Corporation
SKU: 1N4003G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 1N4003G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-204AL, DO-41, Axial

Datasheet:: 1N4003G.pdf

Description:: DIODE GEN PURP 200V 1A DO204AL

Quantity:: RFQ Add To RFQ list

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Inventory:7,802

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Product details

Overview

1N4003G from Taiwan Semiconductor is a glass-passivated silicon standard rectifier diode rated for 1 A average forward current and 200 V repetitive peak reverse voltage, with 30 A surge capability and 150 °C maximum junction temperature, used in DC-DC converters and switching-mode power supplies.

For engineers reviewing the 1N4003G datasheet, 1N4003G pinout, 1N4003G application, or 1N4003G equivalent, key selection criteria include V_RRM = 200 V, I_F = 1 A, V_F ≤ 1.0 V at 1 A, I_R ≤ 5 µA at 25 °C, and DO-204AL (DO-41) package compatibility with through-hole PCB assembly.

Technical Context

The 1N4003G is a single-die, PN-junction rectifier optimized for general-purpose AC-to-DC conversion and freewheeling applications. Its glass-passivated junction ensures stable leakage performance across temperature and long-term reliability under repeated surge stress.

Designed for operation up to 150 °C junction temperature, it delivers low forward voltage drop (≤1.0 V @ 1 A) and minimal reverse leakage (≤5 µA @ 25 °C), supporting high-efficiency power stages in cost-sensitive industrial and consumer power supplies.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	200 V - Maximum non-repetitive reverse voltage the device blocks without breakdown
I_F	1 A - Continuous average forward current rating at 75 °C ambient with adequate heatsinking
I_FSM	30 A - Peak non-repetitive surge current (8.3 ms half-sine) survivable without damage
V_F	≤1.0 V @ 1 A, 25 °C - Forward voltage drop determining conduction loss in rectification path
I_R	≤5 µA @ 200 V, 25 °C - Reverse leakage current affecting standby power and voltage hold-up
T_J max	150 °C - Maximum allowable junction temperature defining thermal derating envelope
R_θJA	80 °C/W - Junction-to-ambient thermal resistance for estimating temperature rise on PCB

Pinout & Package

Package: DO-204AL (DO-41), axial-leaded, glass-passivated silicon rectifier with cathode band marking polarity.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry terminal	Connected to AC input or inductive load return side during freewheeling
Cathode	Forward current exit terminal	Marked by colored band; connects to output rail or positive bus in rectifier configuration

Key Features

Feature	Design Value
Glass-passivated junction	Enables stable reverse leakage and enhanced moisture resistance vs. epoxy-passivated alternatives
AEC-Q101 qualified option available	Supports automotive-grade reliability requirements when ordered as 1N4003GH variant
RoHS and halogen-free compliance	Meets IEC 61249-2-21 and EU RoHS directives for environmentally constrained designs
Pure tin-plated leads	Ensures solderability per J-STD-002 and eliminates lead-free assembly compatibility issues

Applications

DC-DC Converter Input Stage	Switching Inverter Freewheeling Diode
Use Scenario: Rectifying 50/60 Hz or high-frequency AC input into unregulated DC bus prior to buck/boost regulation. IC Role / Device Role / Timing Role: Standard rectifier conducting during positive half-cycles and blocking reverse voltage. Use Value: 200 V V_RRM safely handles line transients in 115 VAC systems; 1 A I_F supports typical sub-15 W power levels.	Use Scenario: Providing flyback path for inductive load current during MOSFET/FET turn-off in H-bridge or half-bridge inverters. IC Role / Device Role / Timing Role: Freewheeling diode clamping inductive kickback to prevent switch overvoltage. Use Value: 30 A I_FSM withstands short-duration energy dumps; low V_F minimizes conduction loss during recovery.
General-Purpose AC Adapter Output	Industrial Control Power Supply Input
Use Scenario: Output-stage rectification in wall-wart adapters powering low-voltage logic or sensors. IC Role / Device Role / Timing Role: Unidirectional current flow converter converting transformer secondary AC to pulsating DC. Use Value: DO-41 package enables manual or automated through-hole insertion; 150 °C T_J max allows operation in enclosed enclosures.	Use Scenario: Primary-side rectification in DIN-rail mounted 24 VDC power supplies for PLC I/O modules. IC Role / Device Role / Timing Role: Line-frequency rectifier in bridge configuration feeding bulk capacitor filter. Use Value: 200 V rating accommodates 120 VAC nominal with safety margin; UL 94V-0 molding compound meets industrial flame-retardancy standards.

DC-DC Converter Input Stage

Switching Inverter Freewheeling Diode

Use Scenario: Rectifying 50/60 Hz or high-frequency AC input into unregulated DC bus prior to buck/boost regulation.

IC Role / Device Role / Timing Role: Standard rectifier conducting during positive half-cycles and blocking reverse voltage.

Use Value: 200 V V_RRM safely handles line transients in 115 VAC systems; 1 A I_F supports typical sub-15 W power levels.

Use Scenario: Providing flyback path for inductive load current during MOSFET/FET turn-off in H-bridge or half-bridge inverters.

IC Role / Device Role / Timing Role: Freewheeling diode clamping inductive kickback to prevent switch overvoltage.

Use Value: 30 A I_FSM withstands short-duration energy dumps; low V_F minimizes conduction loss during recovery.

General-Purpose AC Adapter Output

Industrial Control Power Supply Input

Use Scenario: Output-stage rectification in wall-wart adapters powering low-voltage logic or sensors.

IC Role / Device Role / Timing Role: Unidirectional current flow converter converting transformer secondary AC to pulsating DC.

Use Value: DO-41 package enables manual or automated through-hole insertion; 150 °C T_J max allows operation in enclosed enclosures.

Use Scenario: Primary-side rectification in DIN-rail mounted 24 VDC power supplies for PLC I/O modules.

IC Role / Device Role / Timing Role: Line-frequency rectifier in bridge configuration feeding bulk capacitor filter.

Use Value: 200 V rating accommodates 120 VAC nominal with safety margin; UL 94V-0 molding compound meets industrial flame-retardancy standards.

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 1N4003	V_F max = 1.1 V @ 1 A; same V_RRM, I_F, I_FSM, and DO-41 package	No AEC-Q101 qualified variant offered; RoHS compliant but not explicitly halogen-free	Select when AEC-Q101 qualification is not required and legacy ON Semi sourcing is preferred
STMicroelectronics TS4003	V_R(RMS) = 140 V (vs. 140 V for 1N4003G); identical V_RRM, I_F, and thermal specs	Qualified to AEC-Q101; offers same halogen-free and RoHS compliance	Choose for dual-source assurance in automotive-qualified designs requiring full specification parity

Compared with ON Semiconductor 1N4003 and STMicroelectronics TS4003, the 1N4003G provides identical 200 V/1 A ratings and DO-41 packaging, while offering optional AEC-Q101 qualification and explicit halogen-free compliance-critical for automotive and regulated industrial deployments.

Availability

1N4003G is available at Aetrix Electronics and suitable for DC-DC converters, switching inverters, and general-purpose power supply designs requiring stable component supply and long-lifecycle support.

Supply support for 1N4003G 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.

The 1N4001G–1N4007G series was developed as a cost-optimized, high-reliability standard rectifier family targeting mainstream AC/DC front-end and freewheeling applications across industrial power supplies and consumer adapters.

FAQ

What is the maximum repetitive peak reverse voltage (V_RRM) for the 1N4003G?

The 1N4003G has a maximum repetitive peak reverse voltage (V_RRM) of 200 V. This rating defines the highest reverse-biased voltage the diode can block repeatedly without avalanche breakdown. It is verified per JEDEC test conditions and applies across the full operating temperature range, making the 1N4003G suitable for 120 VAC line-derived supplies with appropriate safety margins.

Does the 1N4003G have an AEC-Q101 qualified version?

Yes, the AEC-Q101 qualified version of the 1N4003G is designated as 1N4003GH. This variant undergoes additional stress testing per AEC-Q101 standards-including temperature cycling, highly accelerated life testing, and mechanical shock-to ensure reliability in automotive under-hood environments. The 1N4003G itself is not AEC-Q101 qualified unless ordered with the "H" suffix.

What is the forward voltage drop (V_F) of the 1N4003G at 1 A and 25 °C?

The forward voltage drop (V_F) of the 1N4003G is guaranteed to be no more than 1.0 V at 1 A forward current and 25 °C junction temperature. This value is measured under pulsed conditions (PW = 0.3 ms) to minimize self-heating effects. At higher temperatures or continuous DC operation, V_F decreases slightly due to negative temperature coefficient of silicon PN junctions.

What package type does the 1N4003G use, and what are its key mechanical features?

The 1N4003G uses the DO-204AL (DO-41) axial-leaded package. Key mechanical features include glass-passivated chip junction, pure tin-plated leads compliant with J-STD-002 solderability, UL 94V-0 flammability-rated molding compound, and cathode polarity indicated by a visible band. Its weight is approximately 0.330 g.

How does the 1N4003G compare to the 1N4007G in terms of voltage rating and application suitability?

The 1N4003G has a 200 V V_RRM, while the 1N4007G is rated for 1000 V. Both share identical I_F = 1 A, I_FSM = 30 A, and DO-41 packaging. The 1N4003G is suited for 120 VAC-derived supplies, whereas the 1N4007G targets 230 VAC or high-voltage DC link applications. Substituting one for the other requires verifying reverse voltage stress margins in the target circuit.

1N4003G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-204AL, DO-41, Axial

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 200 V

Current - Average Rectified (Io):: 1A

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

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

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 5 µA @ 200 V

Capacitance @ Vr, F:: 10pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: DO-204AL (DO-41)

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

1N4003G FAQ

1.How can I place an order for 1N4003G through Aetrix?

Please submit a Request for Quotation (RFQ) for 1N4003G 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 1N4003G reliable?

The price and inventory of 1N4003G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4003G is usually 5 days.

3.What payment methods are accepted for 1N4003G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4003G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 1N4003G?

1N4003G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 1N4003G 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 1N4003G?

For technical support, including 1N4003G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4003G requirements.

6.How does Aetrix verify that 1N4003G is sourced from the original manufacturer or authorized distributors?

All 1N4003G 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 1N4003G meets industry standards.

7.What is the process for return or replacement of 1N4003G?

All 1N4003G units undergo pre-shipment inspection (PSI). If there is an issue with 1N4003G, 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 1N4003G part is unused and in its original packaging.

Return procedure for 1N4003G:

1.Submit a request within 90 days.

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

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