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Taiwan Semiconductor Corporation 1N4002G-K
- Part No.:
- 1N4002G-K
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1N4002G-K.pdf
- Description:
- 1A, 100V, STANDARD RECTIFIER
- Quantity:
- Payment:
- Shipping:
Inventory:4,790
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Product details
Overview
1N4002G-K from Taiwan Semiconductor is a single-die, glass-passivated standard silicon rectifier diode rated for 1 A average forward current and 100 V repetitive peak reverse voltage, with 30 A surge capability and 1 V max forward voltage at 1 A. It is used in low-frequency AC/DC conversion stages of power supplies and DC-DC converters.
For engineers reviewing the 1N4002G-K datasheet, 1N4002G-K pinout, 1N4002G-K application, or 1N4002G-K equivalent, key selection criteria include VRRM=100 V, IF=1 A, IFSM=30 A, VF≤1 V @ 1 A, and DO-41 package compatibility with through-hole PCB layouts.
Technical Context
This device operates as a unidirectional, PN-junction rectifier optimized for 50/60 Hz line-frequency and low-frequency switching applications. Its glass passivation ensures stable junction performance under thermal cycling and humidity exposure.
The 1N4002G-K exhibits a typical junction capacitance of 10 pF at 4 V reverse bias and 1 MHz, and reverse leakage remains ≤5 µA at 25°C and ≤100 µA at 125°C - enabling reliable blocking in low-noise, low-power-consumption designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - maximum non-repetitive reverse voltage the diode blocks without breakdown |
| IF(AV) | 1 A - continuous average forward current rating at TA = 75°C with adequate heatsinking |
| IFSM | 30 A - peak non-repetitive surge current (8.3 ms half-sine) the device withstands during power-up or fault |
| VF | ≤1 V @ IF = 1 A, TJ = 25°C - forward conduction loss directly impacts efficiency in linear rectification stages |
| TJ(max) | +150°C - maximum junction temperature defining thermal derating limits and reliability envelope |
| CJ | 10 pF @ VR = 4 V, f = 1 MHz - low junction capacitance minimizes high-frequency switching noise and EMI coupling |
Pinout & Package
Package: DO-204AL (DO-41), axial leaded, epoxy-molded case with cathode band marking. Leads are pure tin-plated and J-STD-002 solderable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry terminal | Connected to AC input or transformer secondary side; polarity must align with circuit's conduction direction |
| Cathode | Forward current exit terminal | Marked by colored band; connects to positive rail or filter capacitor input in half-wave/full-wave rectifiers |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enhances moisture resistance and long-term parameter stability under industrial ambient conditions |
| RoHS & halogen-free compliance | Meets IEC 61249-2-21; supports environmentally regulated production and end-of-life handling |
| Junction-to-ambient thermal resistance | RθJA = 80°C/W - enables natural convection cooling in compact open-frame power supplies |
| UL 94V-0 molding compound | Provides flame-retardant encapsulation required for safety-certified AC/DC adapters and industrial equipment |
Applications
| AC/DC Wall Adapters | Industrial Control Power Supplies |
|---|---|
Use Scenario: Rectifying 50/60 Hz transformer output into unregulated DC for linear regulators or buck converter inputs. IC Role / Device Role / Timing Role: Primary rectifier in bridge or half-wave configuration delivering 1 A DC output. Use Value: Low VF (≤1 V) reduces conduction loss and heat generation in space-constrained enclosures. | Use Scenario: Converting AC mains-derived auxiliary power for PLC I/O modules and sensor interface rails. IC Role / Device Role / Timing Role: Input-stage rectifier providing isolated, ripple-filtered DC to control logic and analog circuitry. Use Value: 30 A surge rating handles inrush currents from capacitive loads and transformer magnetization transients. |
| LED Driver Auxiliary Supply | Appliance Motor Control Boards |
Use Scenario: Generating low-power bias rails for LED driver ICs and feedback optocouplers in offline LED drivers. IC Role / Device Role / Timing Role: Secondary-side rectifier supplying <1 W auxiliary power at ~12–24 V DC. Use Value: 100 V VRRM safely accommodates reflected voltage spikes from flyback transformer leakage inductance. | Use Scenario: Providing gate drive or logic supply in washing machine or HVAC motor control boards with relay/SCR interfaces. IC Role / Device Role / Timing Role: Isolated DC source for microcontroller peripherals and level-shifting circuits. Use Value: DO-41 package allows manual rework and fits legacy through-hole layouts without redesign. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4002 | No "G-K" suffix; standard JEDEC DO-41, same VRRM/IF/IFSM but unspecified halogen-free status | Lacks RoHS/halogen-free documentation; not suitable for EU medical or automotive BOMs requiring full compliance traceability | Select 1N4002G-K when regulatory documentation and green material certification are mandatory |
| STTH1R02 | Fast recovery (trr ≈ 1.8 µs vs. >10 µs), higher VF (~1.15 V), same DO-41 package and 1 A/100 V ratings | Better suited for higher-frequency SMPS where reverse recovery losses dominate; less optimal for 50/60 Hz line rectification | Choose STTH1R02 only if operating frequency exceeds 20 kHz and reverse recovery behavior is critical |
Compared with 1N4002 and STTH1R02, the 1N4002G-K delivers verified halogen-free compliance and optimized low-frequency conduction efficiency - making it preferred for cost-sensitive, thermally constrained, and regulatory-driven AC/DC front-end designs.
Availability
1N4002G-K is available at Aetrix Electronics and suitable for AC/DC wall adapters, industrial control power supplies, LED driver auxiliary supplies, and appliance motor control boards requiring stable component supply and long-lifecycle support.
Supply support for 1N4002G-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 semiconductor manufacturer specializing in discrete power devices, rectifiers, and protection components for industrial and consumer markets.
The 1N400xG-K series was designed specifically for general-purpose, low-frequency rectification in cost-sensitive, high-volume power conversion applications - emphasizing reliability, manufacturability, and global regulatory alignment.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for the 1N4002G-K?
The 1N4002G-K has a VRRM rating of 100 V, meaning it reliably blocks up to 100 V of reverse voltage in repetitive AC or pulsating DC conditions. This value is confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet revision B2104 and is distinct from the 1N4001G-K (50 V) and 1N4003G-K (200 V) variants.
Is the 1N4002G-K suitable for use in a 60 Hz full-wave bridge rectifier?
Yes, the 1N4002G-K is explicitly designed for 50/60 Hz line-frequency rectification. With its 1 A average forward current, 30 A surge rating, and low thermal resistance (RθJA = 80°C/W), the 1N4002G-K performs reliably in full-wave bridge configurations powering linear regulators or bulk capacitors in AC/DC supplies.
Does the 1N4002G-K have RoHS and halogen-free compliance documentation?
Yes, the 1N4002G-K is certified RoHS compliant and halogen-free per IEC 61249-2-21, as stated in the Features section of the Taiwan Semiconductor datasheet. The "G" in the part number denotes green compound, and the "K" indicates tape-and-reel packaging - both supporting environmental compliance requirements.
What is the forward voltage drop of the 1N4002G-K at rated current?
The 1N4002G-K has a maximum forward voltage (VF) of 1.0 V at 1 A forward current and 25°C junction temperature, per the Electrical Specifications table. Typical VF is lower, but design margins should use the 1.0 V max value to ensure thermal and efficiency calculations remain conservative.
Can the 1N4002G-K replace the 1N4001G-K in an existing design?
Yes, the 1N4002G-K can replace the 1N4001G-K in most cases because both share identical package (DO-41), current rating (1 A), surge rating (30 A), and thermal specs. However, the 1N4002G-K offers double the reverse voltage margin (100 V vs. 50 V), improving robustness against transient overvoltage - especially beneficial in noisy or poorly regulated AC lines.
1N4002G-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):
- 100 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
1N4002G-K FAQ
1.How can I place an order for 1N4002G-K through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4002G-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 1N4002G-K reliable?
The price and inventory of 1N4002G-K are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4002G-K is usually 5 days.
3.What payment methods are accepted for 1N4002G-K?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4002G-K transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4002G-K?
1N4002G-K orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4002G-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 1N4002G-K?
For technical support, including 1N4002G-K datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4002G-K requirements.
6.How does Aetrix verify that 1N4002G-K is sourced from the original manufacturer or authorized distributors?
All 1N4002G-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 1N4002G-K meets industry standards.
7.What is the process for return or replacement of 1N4002G-K?
All 1N4002G-K units undergo pre-shipment inspection (PSI). If there is an issue with 1N4002G-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 1N4002G-K part is unused and in its original packaging.
Return procedure for 1N4002G-K:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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