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Taiwan Semiconductor Corporation 1N5402G
- Part No.:
- 1N5402G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1N5402G.pdf
- Description:
- DIODE GEN PURP 200V 3A DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:7,114
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Product details
Overview
1N5402G from Taiwan Semiconductor is a glass-passivated standard silicon rectifier diode with 3A average forward current, 200V repetitive peak reverse voltage (VRRM), and 125A surge capability, used in DC-DC converters and switching-mode power supplies for reliable AC-to-DC conversion.
For engineers reviewing the 1N5402G datasheet, 1N5402G pinout, 1N5402G application, or 1N5402G equivalent, key selection criteria include VRRM rating, forward voltage at 3A, thermal resistance (RθJA = 45°C/W), junction temperature range (–55°C to +150°C), and DO-201AD package compatibility with high-reliability industrial power designs.
Technical Context
The 1N5402G is a single-die, unidirectional, PN-junction rectifier optimized for general-purpose and switching-mode power conversion. It features glass passivation for moisture resistance and stable leakage performance, with a typical forward voltage of 1.0V at 3A and 25°C.
Its thermal design supports continuous operation up to +150°C junction temperature, enabled by RθJC = 15°C/W and RθJA = 45°C/W. Reverse leakage remains ≤5µA at 25°C and ≤100µA at 125°C under rated 200V reverse bias.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum non-repetitive reverse voltage the device blocks without breakdown |
| IF(AV) | 3 A - Continuous average forward current rating at case temperature ≤75°C |
| IFSM | 125 A - Peak non-repetitive surge current (8.3ms half-sine) for transient overload handling |
| VF @ 3A | 1.0 V - Forward voltage drop determining conduction loss and thermal load in power stage |
| TJ Range | –55°C to +150°C - Operating junction temperature range defining reliability envelope |
| RθJA | 45 °C/W - Junction-to-ambient thermal resistance guiding heatsinking requirements on PCB |
| IR @ 200V | ≤5 µA @ 25°C - Reverse leakage current affecting standby power and voltage hold-up stability |
Pinout & Package
Package: DO-201AD molded plastic case with axial leads; cathode indicated by band; pure tin-plated leads compliant with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Forward current entry point | Connects to AC input or transformer secondary side; polarity-sensitive for rectification |
| Cathode (Lead 2, banded end) | Forward current exit / reverse blocking terminal | Connects to output filter capacitor or load; defines direction of DC output polarity |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enhances humidity resistance and long-term parameter stability in humid or harsh environments |
| AEC-Q101 qualified option available | Validated for automotive-grade reliability including temperature cycling and mechanical shock testing |
| Low VF (1.0V @ 3A) | Reduces conduction losses and improves efficiency in high-current linear and SMPS rectification stages |
| High IFSM (125A) | Withstands inrush currents during cold-start or fault conditions without degradation |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and environmental regulations for industrial and consumer production |
Applications
| DC-DC Converter Input Stage | Switching Inverter Output Rectification |
|---|---|
Use Scenario: Converts unregulated DC bus to isolated or regulated output using flyback or forward topology. IC Role / Device Role / Timing Role: Primary-side rectifier converting transformer secondary AC to DC before filtering. Use Value: 200V VRRM and 125A IFSM ensure robustness against reflected voltage spikes and startup surges. | Use Scenario: Rectifies high-frequency AC output from H-bridge or full-bridge inverters in UPS or solar microinverters. IC Role / Device Role / Timing Role: Secondary-side uncontrolled rectifier delivering smoothed DC to battery or grid interface. Use Value: Low 1.0V VF minimizes conduction loss at 3A continuous load, improving overall system efficiency. |
| Industrial AC-DC Power Supply | General-Purpose Line-Frequency Rectification |
Use Scenario: Used in 50/60Hz bridge rectifiers for industrial control power supplies with wide ambient temperature range. IC Role / Device Role / Timing Role: Discrete rectifying element in full-wave bridge configuration supplying logic and sensor rails. Use Value: –55°C to +150°C TJ range and 45°C/W RθJA support operation in enclosed, high-temperature enclosures. | Use Scenario: Replaces legacy 1N540x series in maintenance, repair, and replacement of legacy equipment. IC Role / Device Role / Timing Role: Standard replacement diode in low-frequency transformer-based power supplies. Use Value: DO-201AD footprint ensures mechanical and electrical compatibility with existing PCB layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar standard rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5402 | No "G" suffix; not RoHS-compliant or halogen-free per IEC 61249-2-21 | Limited to non-RoHS legacy systems; lacks AEC-Q101 qualification path | Select 1N5402G when environmental compliance or automotive qualification is required |
| STTH3L02 | Fast recovery (trr ≈ 50ns), higher VF (~1.15V), same 3A/200V rating | Better suited for high-frequency SMPS where reverse recovery matters; higher conduction loss | Choose STTH3L02 only if fast recovery is needed; otherwise 1N5402G offers lower VF and cost |
Compared with 1N5402 and STTH3L02, the 1N5402G delivers optimal balance of low forward voltage, RoHS/halogen-free compliance, and proven ruggedness in line-frequency and medium-frequency rectification-without requiring layout changes or thermal redesign.
Availability
1N5402G is available at Aetrix Electronics and suitable for DC-DC converters, switching inverters, and industrial AC-DC power supplies requiring stable component supply, long lifecycle support, and consistent parametric performance across manufacturing lots.
Supply support for 1N5402G 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 power rectifiers, TVS diodes, and MOSFETs for industrial and automotive markets.
The 1N5400G–1N5408G family was designed to deliver high-surge, glass-passivated rectification with extended temperature capability and environmental compliance for cost-sensitive yet reliability-critical power conversion.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for the 1N5402G?
The 1N5402G has a VRRM rating of 200 V, meaning it reliably blocks up to 200 V of reverse voltage in repetitive operation. This value is confirmed in the Absolute Maximum Ratings table of the Taiwan Semiconductor datasheet (Version K2105) and distinguishes it from adjacent variants like the 1N5401G (100 V) and 1N5404G (400 V). Exceeding this voltage risks avalanche breakdown and permanent damage to the 1N5402G.
Does the 1N5402G have AEC-Q101 qualification?
The base 1N5402G is not AEC-Q101 qualified; however, the variant 1N5402GH (with "H" suffix) is explicitly qualified per AEC-Q101. The "G" suffix alone indicates RoHS and halogen-free compliance but does not imply automotive qualification. Engineers requiring AEC-Q101 must specify 1N5402GH - the 1N5402G itself meets industrial reliability standards but lacks formal automotive stress-test validation.
What is the forward voltage (VF) of the 1N5402G at 3A and 25°C?
The 1N5402G exhibits a maximum forward voltage of 1.0 V at 3 A and 25°C junction temperature, as specified in the Electrical Specifications table. This value is lower than earlier variants (e.g., 1N5400G/1N5401G at 1.1 V), reflecting process optimization for reduced conduction loss. At elevated temperatures or higher currents, VF increases slightly but remains within predictable bounds defined by the device's VI curve.
What package type does the 1N5402G use, and are its leads lead-free?
The 1N5402G uses the DO-201AD axial-leaded package with molded plastic body and cathode band marking. Its leads are pure tin-plated and fully RoHS-compliant, meeting J-STD-002 solderability requirements. The "G" suffix confirms green (halogen-free) molding compound per IEC 61249-2-21, and the device weighs approximately 1.20 g - all verified in the Mechanical Data section of the official Taiwan Semiconductor datasheet.
How does the 1N5402G compare to the 1N5408G in terms of voltage rating and application scope?
The 1N5402G is rated for 200 V VRRM, while the 1N5408G is rated for 1000 V - making them non-interchangeable without circuit redesign. The 1N5402G targets mid-voltage applications like 120/230 VAC-derived supplies and DC-DC inputs, whereas the 1N5408G serves high-voltage PFC stages or industrial motor drives. Both share identical IF, IFSM, thermal specs, and DO-201AD packaging, but their reverse voltage capability strictly defines system-level suitability.
1N5402G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-201AD, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 3 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 5 µA @ 200 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
1N5402G FAQ
1.How can I place an order for 1N5402G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5402G 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 1N5402G reliable?
The price and inventory of 1N5402G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5402G is usually 5 days.
3.What payment methods are accepted for 1N5402G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5402G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5402G?
1N5402G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5402G 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 1N5402G?
For technical support, including 1N5402G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5402G requirements.
6.How does Aetrix verify that 1N5402G is sourced from the original manufacturer or authorized distributors?
All 1N5402G 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 1N5402G meets industry standards.
7.What is the process for return or replacement of 1N5402G?
All 1N5402G units undergo pre-shipment inspection (PSI). If there is an issue with 1N5402G, 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 1N5402G part is unused and in its original packaging.
Return procedure for 1N5402G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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