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

Taiwan Semiconductor Corporation 1N4003G R0G

Name: 1N4003G R0G
Brand: Taiwan Semiconductor Corporation
SKU: 1N4003G R0G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 1N4003G R0G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

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

Datasheet:: 1N4003G R0G.pdf

Description:: DIODE GEN PURP 200V 1A DO204AL

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Product details

Overview

1N4003G R0G 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 R0G datasheet, 1N4003G R0G pinout, 1N4003G R0G application, or 1N4003G R0G 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

This discrete rectifier operates as a unidirectional current-conducting device with a single p-n junction, optimized for low forward voltage drop and high reliability in line-frequency and medium-frequency switching applications. Its glass-passivated chip junction ensures stable performance under thermal cycling and humidity stress.

The 1N4003G R0G exhibits typical junction capacitance of 10 pF at 4 V reverse bias and 1 MHz, and maintains reverse leakage below 100 µA up to 125 °C - critical for maintaining efficiency in compact, thermally constrained power stages.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	200 V - Maximum non-repetitive reverse voltage the diode blocks without breakdown; defines safe operating range in 120/230 VAC-derived supplies.
I_F	1 A continuous - Average forward current rating at 75 °C ambient; determines heatsinking requirements in linear or low-duty-cycle rectification.
I_FSM	30 A (8.3 ms half-sine) - Peak surge current handling; enables robustness against inrush and transient overloads in transformer-coupled inputs.
V_F	≤1.0 V @ 1 A, 25 °C - Forward voltage drop directly impacts conduction loss and thermal rise in high-current paths.
T_J max	150 °C - Maximum allowable junction temperature; sets upper limit for thermal design margin in enclosed or high-ambient environments.
C_J	10 pF @ 4 V, 1 MHz - Junction capacitance affects high-frequency switching noise and EMI filtering behavior in SMPS flyback snubbers.

Pinout & Package

Package: DO-204AL (DO-41), axial leaded, glass-passivated silicon die in molded epoxy case with cathode band polarity marking.

Pin/Terminal	Circuit Role	Design Meaning
Anode (unmarked end)	Forward current entry point	Connects to lower-potential side (e.g., transformer secondary center-tap or AC input phase) during conduction.
Cathode (banded end)	Forward current exit / reverse blocking terminal	Connects to output capacitor positive rail; band orientation must match PCB silkscreen for correct polarity placement.

Key Features

Feature	Design Value
Glass-passivated junction	Enhances moisture resistance and long-term parameter stability vs. plastic-passivated alternatives, critical for industrial outdoor deployments.
RoHS & halogen-free compliance	Meets IEC 61249-2-21 and EU RoHS Directive; eliminates brominated flame retardants and supports environmentally regulated manufacturing.
Junction-to-ambient R_θJA	80 °C/W - Enables natural-convection thermal management in space-constrained designs without forced air or heatsinks.
AEC-Q101 qualification option	Available in H-suffix variants (e.g., 1N4003GH); validated for automotive under-hood temperature cycling and mechanical shock requirements.

Applications

AC/DC Adapter Input Rectification	DC-DC Converter Output Freewheeling
Use Scenario: Converts 120/230 VAC mains to pulsating DC in offline wall adapters powering consumer electronics. IC Role / Device Role / Timing Role: Standard rectifier conducting during positive half-cycles; paired with smoothing capacitor to generate unregulated DC bus. Use Value: 200 V V_RRM provides 2× safety margin over 120 VAC peak (170 V), while 1 A I_F supports typical <10 W adapter outputs.	Use Scenario: Provides freewheeling path for inductive energy recovery in buck or flyback converter secondary-side circuits. IC Role / Device Role / Timing Role: Uncontrolled rectifier clamping inductor back-EMF during switch-off phase; conducts only when output voltage falls below inductor stored energy level. Use Value: Low V_F ≤1.0 V minimizes conduction loss in high-duty-cycle operation, improving overall converter efficiency by ~0.5–1.2%.
Industrial Control Power Supply	LED Driver Bridge Configuration
Use Scenario: Supplies auxiliary 5–24 V rails for PLC I/O modules, sensors, and relay drivers in factory automation systems. IC Role / Device Role / Timing Role: Half-wave or full-wave rectifier in transformer-isolated auxiliary supply; operates continuously under steady-state load. Use Value: 150 °C T_J max and 80 °C/W R_θJA allow reliable operation in sealed enclosures up to 70 °C ambient without derating.	Use Scenario: One leg of a four-diode bridge rectifier converting 12–48 VAC transformer output to DC for constant-current LED string drivers. IC Role / Device Role / Timing Role: Bidirectional AC input handling in full-wave configuration; each diode conducts alternate half-cycles. Use Value: 30 A I_FSM withstands lamp cold-start surges; DO-41 leads support manual soldering and automated insertion in cost-sensitive lighting BOMs.

AC/DC Adapter Input Rectification

DC-DC Converter Output Freewheeling

Use Scenario: Converts 120/230 VAC mains to pulsating DC in offline wall adapters powering consumer electronics.

IC Role / Device Role / Timing Role: Standard rectifier conducting during positive half-cycles; paired with smoothing capacitor to generate unregulated DC bus.

Use Value: 200 V V_RRM provides 2× safety margin over 120 VAC peak (170 V), while 1 A I_F supports typical <10 W adapter outputs.

Use Scenario: Provides freewheeling path for inductive energy recovery in buck or flyback converter secondary-side circuits.

IC Role / Device Role / Timing Role: Uncontrolled rectifier clamping inductor back-EMF during switch-off phase; conducts only when output voltage falls below inductor stored energy level.

Use Value: Low V_F ≤1.0 V minimizes conduction loss in high-duty-cycle operation, improving overall converter efficiency by ~0.5–1.2%.

Industrial Control Power Supply

LED Driver Bridge Configuration

Use Scenario: Supplies auxiliary 5–24 V rails for PLC I/O modules, sensors, and relay drivers in factory automation systems.

IC Role / Device Role / Timing Role: Half-wave or full-wave rectifier in transformer-isolated auxiliary supply; operates continuously under steady-state load.

Use Value: 150 °C T_J max and 80 °C/W R_θJA allow reliable operation in sealed enclosures up to 70 °C ambient without derating.

Use Scenario: One leg of a four-diode bridge rectifier converting 12–48 VAC transformer output to DC for constant-current LED string drivers.

IC Role / Device Role / Timing Role: Bidirectional AC input handling in full-wave configuration; each diode conducts alternate half-cycles.

Use Value: 30 A I_FSM withstands lamp cold-start surges; DO-41 leads support manual soldering and automated insertion in cost-sensitive lighting BOMs.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ON Semiconductor 1N4003FS	V_F max = 1.1 V (vs. 1.0 V), same V_RRM/I_F/package; slightly higher conduction loss at full load.	Identical use in AC/DC and DC-DC; minor efficiency impact in thermally tight layouts.	Select when ON Semi sourcing is preferred; verify thermal margin with 0.1 V higher V_F.
Vishay 1N4003-E3/54	Same electrical specs; RoHS-compliant but not halogen-free per IEC 61249-2-21; different date coding and reel packaging.	No functional difference; suitable for non-automotive industrial use where halogen-free is not mandated.	Choose for Vishay supply chain alignment; confirm halogen-free requirement waiver if applicable.

Compared with 1N4003FS and 1N4003-E3/54, the 1N4003G R0G offers tighter V_F control and halogen-free compliance - advantageous in automotive-qualified or eco-regulated designs - while maintaining identical pinout, footprint, and thermal derating curves.

Availability

1N4003G R0G is available at Aetrix Electronics and suitable for AC/DC adapters, industrial control power supplies, and LED driver bridge rectifiers requiring stable component supply and long-term manufacturability.

Supply support for 1N4003G 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 industrial, computing, and consumer markets since 1979.

The 1N4001G–1N4007G family was designed specifically for cost-sensitive, high-reliability general-purpose rectification - balancing performance, ruggedness, and manufacturability across 50–1000 V voltage grades in standardized DO-41 packaging.

FAQ

What is the maximum repetitive peak reverse voltage (V_RRM) for the 1N4003G R0G?

The 1N4003G R0G has a V_RRM rating of 200 V, meaning it reliably blocks reverse voltages up to this level without breakdown. This value is fixed per the 1N4003 designation and confirmed in Taiwan Semiconductor's P2104 datasheet. Exceeding 200 V risks avalanche failure, so designers must ensure worst-case reverse transients stay within this limit. The 1N4003G R0G is not interchangeable with 1N4004G (400 V) or higher-voltage variants without circuit revalidation.

Does the 1N4003G R0G meet automotive qualification standards?

The base 1N4003G R0G is not AEC-Q101 qualified; however, Taiwan Semiconductor offers the 1N4003GH variant with full AEC-Q101 certification for automotive under-hood applications. The "H" suffix denotes qualification - including temperature cycling, humidity testing, and mechanical shock validation. For automotive use, specify 1N4003GH, not 1N4003G R0G, as the latter lacks test documentation required for automotive-grade deployment.

What is the forward voltage drop (V_F) of the 1N4003G R0G at rated current?

The 1N4003G R0G has a maximum forward voltage of 1.0 V at 1 A forward current and 25 °C junction temperature, per the Electrical Specifications table in the P2104 datasheet. Typical V_F is lower (~0.85–0.95 V), but design margins must use the 1.0 V max value. This V_F directly determines conduction loss (P_loss = I_F × V_F) and thermal rise in continuous operation.

Is the 1N4003G R0G halogen-free and RoHS compliant?

Yes, the 1N4003G R0G is both RoHS compliant and halogen-free per IEC 61249-2-21, as explicitly stated in the FEATURES section of the P2104 datasheet. The "G" suffix denotes green compound (halogen-free molding material), and the device meets EU RoHS Directive 2011/65/EU. This makes the 1N4003G R0G suitable for environmentally regulated industries including medical, industrial, and consumer electronics.

What package type does the 1N4003G R0G use, and what are its key mechanical features?

The 1N4003G R0G uses the DO-204AL (DO-41) axial package: molded epoxy case with pure tin-plated leads, UL 94V-0 flammability rating, and cathode band polarity marking. It weighs approximately 0.330 g and passes JESD 201 Class 2 whisker testing. The DO-41 outline allows manual soldering and wave soldering, with lead spacing matching standard 0.300-inch PCB footprints.

1N4003G R0G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

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

Packaging:: Tape & Reel (TR)

Product Status:: Discontinued at Digi-Key

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 R0G FAQ

1.How can I place an order for 1N4003G R0G through Aetrix?

Please submit a Request for Quotation (RFQ) for 1N4003G 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 1N4003G R0G reliable?

The price and inventory of 1N4003G R0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4003G R0G is usually 5 days.

3.What payment methods are accepted for 1N4003G R0G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4003G R0G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 1N4003G R0G?

1N4003G R0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 1N4003G 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 1N4003G R0G?

For technical support, including 1N4003G R0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4003G R0G requirements.

6.How does Aetrix verify that 1N4003G R0G is sourced from the original manufacturer or authorized distributors?

All 1N4003G 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 1N4003G R0G meets industry standards.

7.What is the process for return or replacement of 1N4003G R0G?

All 1N4003G R0G units undergo pre-shipment inspection (PSI). If there is an issue with 1N4003G 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 1N4003G R0G part is unused and in its original packaging.

Return procedure for 1N4003G R0G:

1.Submit a request within 90 days.

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

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