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Taiwan Semiconductor Corporation 1N4003G-K
- Part No.:
- 1N4003G-K
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1N4003G-K.pdf
- Description:
- 1A, 200V, STANDARD RECTIFIER
- Quantity:
- Payment:
- Shipping:
Inventory:7,220
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Product details
Overview
1N4003G-K from Taiwan Semiconductor is a single-die standard silicon rectifier diode rated for 1 A average forward current and 200 V repetitive peak reverse voltage, with 30 A surge capability and 1.0 V max forward voltage at 1 A. It features glass-passivated junction, RoHS- and halogen-free compliance, and is used in DC-DC converters and switching-mode power supplies.
For engineers reviewing the 1N4003G-K datasheet, 1N4003G-K pinout, 1N4003G-K application, or 1N4003G-K equivalent, key selection criteria include VRRM = 200 V, IFSM = 30 A, VF ≤ 1.0 V @ 1 A, TJ(max) = 150 °C, and DO-41 package compatibility with through-hole PCB assembly and automated tape-and-reel handling.
Technical Context
This diode operates as a unidirectional current-conducting device in AC-to-DC rectification stages, leveraging a planar passivated PN junction optimized for low conduction loss and high transient surge tolerance. Its thermal resistance RθJA = 80 °C/W enables operation up to 150 °C junction temperature under natural convection.
The 1N4003G-K exhibits IR ≤ 5 µA at 25 °C and ≤ 100 µA at 125 °C under rated reverse voltage, and CJ = 10 pF at 1 MHz / 4 V, supporting stable performance in medium-frequency switching applications up to ~100 kHz without significant capacitive loading effects.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum non-repetitive reverse voltage the diode blocks without breakdown; defines usable input AC range in bridge or half-wave rectifiers. |
| IF(AV) | 1 A - Continuous average forward current rating; determines maximum steady-state DC output capability in linear or SMPS secondary-side rectification. |
| IFSM | 30 A - Peak non-repetitive surge current (8.3 ms sine half-wave); supports inrush current handling during power-up of capacitive-input filters. |
| VF(max) | 1.0 V @ 1 A, 25 °C - Forward voltage drop defining conduction loss (1 W max at full load), directly impacting thermal design and efficiency. |
| TJ(max) | 150 °C - Maximum allowable junction temperature; sets derating limit for ambient temperature and heatsinking requirements. |
| CJ | 10 pF @ 1 MHz, 4 V - Junction capacitance affecting high-frequency switching behavior and EMI generation in flyback or boost converters. |
| IR(max) | 5 µA @ 25 °C, 200 V - Reverse leakage current defining off-state power loss and stability in high-impedance bias networks. |
Pinout & Package
Package: DO-204AL (DO-41), axial-leaded, glass-passivated silicon rectifier in molded epoxy case with cathode band marking. Leads are pure tin-plated, J-STD-002 solderable, and meet JESD201 Class 1A whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry terminal | Connected to AC source or transformer secondary; polarity must align with circuit's conduction path direction. |
| Cathode | Forward current exit terminal | Marked by colored band; connects to positive rail or filter capacitor; reverse-biased during off-cycle. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enhances moisture and contamination resistance, improving long-term reliability in humid or industrial environments. |
| Low VF (≤1.0 V @ 1 A) | Reduces conduction loss by limiting I²R heating, enabling compact thermal design without forced air cooling. |
| 30 A IFSM rating | Supports repeated cold-start surges in offline power supplies with large bulk capacitors without degradation. |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and global environmental directives, enabling use in consumer and industrial CE-marked products. |
Applications
| AC/DC Adapter Rectification | Switch-Mode Power Supply Output Stage |
|---|---|
Use Scenario: Converting 50/60 Hz AC mains to pulsating DC in wall-wart adapters with capacitive-input filtering. IC Role / Device Role / Timing Role: Standard rectifier diode in single-phase half-wave or bridge configuration. Use Value: 200 V VRRM safely handles 170 V peak AC line voltage with margin; 1 A IF rating supports typical 5–12 V / 500 mA adapter outputs. | Use Scenario: Secondary-side freewheeling or output rectification in 20–100 kHz flyback or forward converters. IC Role / Device Role / Timing Role: Uncontrolled rectifier conducting during transformer reset or output inductive energy transfer. Use Value: 10 pF junction capacitance minimizes switching node ringing; 30 A IFSM accommodates output capacitor charging transients. |
| Industrial Control Power Supply | LED Driver Input Stage |
Use Scenario: Providing isolated auxiliary DC bias for PLC I/O modules or relay drivers from 24 VAC control lines. IC Role / Device Role / Timing Role: Half-wave rectifier feeding linear regulator or buck converter input. Use Value: 150 °C TJ(max) ensures operation in enclosed enclosures up to 70 °C ambient; DO-41 package allows manual or wave-solder rework. | Use Scenario: Rectifying AC input to constant-current LED driver ICs in commercial lighting fixtures. IC Role / Device Role / Timing Role: Primary rectifier in non-isolated buck-boost or capacitive-dropper front-end. Use Value: Low 5 µA IR at 25 °C prevents standby power waste; halogen-free compound meets UL 94V-0 flame rating for luminaire safety. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar standard rectifier diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4003-T | VRRM = 200 V, same IF/IFSM, but plastic-passivated (not glass), slightly higher VF (1.1 V typ) | Lower humidity resistance; not rated for extended outdoor or condensing environments | Acceptable where cost sensitivity outweighs long-term reliability in benign indoor settings |
| RS207M | VRRM = 1000 V, IF = 2 A, DO-15 package (larger footprint), RθJA = 65 °C/W | Higher voltage margin and current headroom, but requires PCB layout change and offers no benefit in 200 V-class designs | Only suitable when future-proofing for higher input voltages or upgrading thermal performance is required |
Compared with 1N4003-T and RS207M, the 1N4003G-K delivers optimal balance of glass-passivated reliability, precise 200 V rating, and DO-41 footprint compatibility-making it ideal for cost-sensitive, space-constrained, and thermally moderate rectification tasks without over-spec'ing voltage or size.
Availability
1N4003G-K is available at Aetrix Electronics and suitable for AC/DC adapters, industrial control power supplies, LED driver input stages, and switching-mode converter output rectification requiring stable component supply and consistent DO-41 lead-forming.
Supply support for 1N4003G-K 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 rectifiers, TVS diodes, MOSFETs, and bipolar transistors for industrial and consumer markets.
The 1N400xG-K series was designed specifically for general-purpose, cost-optimized AC-to-DC rectification in high-volume power supplies where reliability, manufacturability, and regulatory compliance are essential.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for the 1N4003G-K?
The 1N4003G-K has a VRRM rating of 200 V, meaning it can reliably block up to 200 V of reverse voltage in repetitive AC or pulsed conditions without breakdown. This value is confirmed in the Absolute Maximum Ratings table on page 2 of the official Taiwan Semiconductor datasheet revision B2104 and is specific to the 1N4003G-K variant-not shared across the full 1N4001G-K to 1N4007G-K family.
Is the 1N4003G-K RoHS and halogen-free compliant?
Yes, the 1N4003G-K is fully RoHS compliant and halogen-free per IEC 61249-2-21, as explicitly stated in the Features section of the Taiwan Semiconductor datasheet. The "G" suffix denotes green (halogen-free) molding compound, and the device carries UL 94V-0 flammability certification-critical for compliance in EU and North American end-equipment.
What is the forward voltage drop (VF) of the 1N4003G-K at rated current?
The 1N4003G-K has a maximum forward voltage drop of 1.0 V at 1 A forward current and 25 °C junction temperature, per the Electrical Specifications table. This VF value is measured under pulse conditions (PW = 0.3 ms) and defines worst-case conduction loss-actual VF may be lower at reduced current or elevated temperature, but system thermal design must assume 1.0 V.
Does the 1N4003G-K have a specified junction-to-ambient thermal resistance?
Yes, the 1N4003G-K has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W under standard test conditions (JEDEC Std. 51-2, still air). This value applies to the DO-41 package mounted on a 1-inch square FR-4 board with 2-oz copper, and is used to calculate allowable ambient temperature rise for safe 1 A continuous operation.
What packaging options are available for the 1N4003G-K?
The 1N4003G-K is supplied in two standard configurations: 5,000 units per tape-and-reel (ordering code 1N4003G-K) and 3,000 units per ammo box (ordering code 1N4003G-K A0G). Both use the DO-204AL (DO-41) axial package with pure tin-plated leads compliant with J-STD-002 solderability requirements.
1N4003G-K 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 @ 50 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-K FAQ
1.How can I place an order for 1N4003G-K through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4003G-K 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-K reliable?
The price and inventory of 1N4003G-K are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4003G-K is usually 5 days.
3.What payment methods are accepted for 1N4003G-K?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4003G-K transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4003G-K?
1N4003G-K orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4003G-K 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-K?
For technical support, including 1N4003G-K datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4003G-K requirements.
6.How does Aetrix verify that 1N4003G-K is sourced from the original manufacturer or authorized distributors?
All 1N4003G-K 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-K meets industry standards.
7.What is the process for return or replacement of 1N4003G-K?
All 1N4003G-K units undergo pre-shipment inspection (PSI). If there is an issue with 1N4003G-K, 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-K part is unused and in its original packaging.
Return procedure for 1N4003G-K:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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