Taiwan Semiconductor Corporation 1N5402G R0G
- Part No.:
- 1N5402G R0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1N5402G R0G.pdf
- Description:
- DIODE GEN PURP 200V 3A DO201AD
- Quantity:
- Payment:

- Shipping:

Inventory:4,975
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Product details
Overview
1N5402G R0G from Taiwan Semiconductor is a glass-passivated standard silicon rectifier diode rated for 3A average forward current and 200V repetitive peak reverse voltage in a DO-201AD package, featuring low 1.0V forward voltage at 3A and 125A surge capability - used in DC-DC converters and switching inverters.
For engineers reviewing the 1N5402G R0G datasheet, 1N5402G R0G pinout, 1N5402G R0G application, or 1N5402G R0G equivalent, key selection criteria include VRRM=200V, IF=3A, VF≤1.0V @3A, IFSM=125A, and DO-201AD mechanical compatibility with high-reliability power conversion designs.
Technical Context
This single-die, axial-leaded rectifier operates with a maximum junction temperature of 150°C and exhibits 15°C/W junction-to-case thermal resistance. Its glass-passivated junction ensures stable reverse leakage (≤5µA @25°C, ≤100µA @125°C) and robust surge tolerance under 8.3ms half-sine wave conditions.
The device delivers 1.0V forward voltage at rated 3A load and 25°C junction temperature, with 25pF junction capacitance at 1MHz/4V reverse bias - optimized for medium-frequency switching applications up to several tens of kHz without excessive switching loss or ringing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - blocks up to 200V reverse voltage without breakdown in continuous operation |
| IF(AV) | 3 A - supports sustained DC output current in power supply front-ends and converters |
| VF | ≤1.0 V @3A, 25°C - minimizes conduction loss and heat generation in high-current paths |
| IFSM | 125 A - withstands short-duration inrush/surge currents during startup or fault events |
| TJ max | 150 °C - enables reliable operation in thermally constrained industrial enclosures |
| RθJC | 15 °C/W - allows effective heatsinking via PCB copper or clip-on thermal interface |
Pinout & Package
Package: DO-201AD - axial-lead, molded plastic case with cathode band marking; UL 94V-0 rated compound; pure tin-plated leads compliant with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Forward current entry point | Connected to AC input or transformer secondary side; requires adequate trace width for 3A continuous |
| Cathode (Lead 2) | Forward current exit / reverse voltage blocking terminal | Marked by colored band; ties to positive rail or switching node; defines polarity-sensitive placement |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Prevents moisture ingress and surface contamination, extending lifetime in humid or dusty environments |
| AEC-Q101 qualified option available | Validated for automotive under-hood applications requiring stress-tested reliability |
| Low VF (≤1.0V @3A) | Reduces power dissipation by ~0.3W vs. higher-VF alternatives at full load, easing thermal design |
| 125A non-repetitive surge rating | Survives cold-start surges and transient overloads without degradation in SMPS front-ends |
| RoHS & halogen-free compliance | Meets IEC 61249-2-21 and environmental regulations for global electronics manufacturing |
Applications
| DC-DC Converter Input Stage | Switching Inverter Output Rectification |
|---|---|
Use Scenario: Full-wave rectification of transformer-coupled AC input prior to buck or flyback regulation. IC Role / Device Role / Timing Role: Power diode conducting unidirectional current; not timing or control-related. Use Value: 3A/200V rating matches typical 24–48V industrial converter inputs; 1.0V VF limits conduction loss to <3.3W at full load. | Use Scenario: Output-side freewheeling or synchronous rectification in 50–100kHz PWM inverters. IC Role / Device Role / Timing Role: Uncontrolled rectifier handling bidirectional energy recovery during switching transitions. Use Value: 125A surge capacity absorbs turn-off spikes; 15°C/W RθJC supports direct mounting to heatsinked chassis. |
| Industrial AC/DC Power Supply | LED Driver Bulk Rectification |
Use Scenario: Bridge rectifier leg in universal-input (85–265VAC) offline PSUs delivering 12–24V/2–3A. IC Role / Device Role / Timing Role: Discrete rectifying element in discrete bridge configuration; no signal processing role. Use Value: 200V VRRM provides 2× safety margin over 120VAC peak (170V); DO-201AD footprint fits standard through-hole layouts. | Use Scenario: High-current AC input rectification feeding constant-current LED driver ICs. IC Role / Device Role / Timing Role: Primary power conversion component converting line AC to pulsating DC before filtering and regulation. Use Value: 3A IF rating supports >100W LED arrays; glass passivation prevents corrosion in outdoor-rated luminaires. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH3L02 | 3A/200V fast recovery (trr ≈ 50ns), TO-220AC package, VF ≈ 1.15V @3A | Better suited for high-frequency (>100kHz) switching where reverse recovery matters | Select when EMI reduction or efficiency at >50kHz is critical; requires different mounting and layout |
| ON Semi MUR320 | 3A/200V ultrafast recovery (trr ≈ 35ns), DO-201AD package, VF ≈ 1.1V @3A | Lower trr reduces switching losses in PFC stages and resonant topologies | Drop-in replacement in same DO-201AD footprint; verify thermal margin due to slightly higher VF |
Compared with STTH3L02 and MUR320, the 1N5402G R0G offers lower cost and proven ruggedness for ≤30kHz applications but lacks fast recovery - making it ideal for cost-sensitive industrial supplies where simplicity and surge resilience outweigh speed requirements.
Availability
1N5402G R0G is available at Aetrix Electronics and suitable for DC-DC converters, switching inverters, and industrial AC/DC power supplies requiring stable component supply and long-term manufacturability.
Supply support for 1N5402G 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 1N5402G R0G belongs to TSC's standard rectifier family designed for robust, cost-effective AC/DC power conversion in non-automotive industrial equipment - emphasizing reliability, surge tolerance, and thermal stability over ultrafast switching.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for the 1N5402G R0G?
The 1N5402G R0G has a VRRM rating of 200V, meaning it can reliably block up to 200V of reverse voltage in repetitive operation without breakdown. This value is confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version K2105), and applies specifically to the 1N5402G variant within the 1N5400G–1N5408G series.
What is the forward voltage drop of the 1N5402G R0G at its rated current?
The 1N5402G R0G exhibits a maximum forward voltage (VF) of 1.0V at 3A forward current and 25°C junction temperature, per the Electrical Specifications table. This value is specific to the 1N5402G–1N5408G subgroup and reflects its optimized low-loss design for medium-frequency rectification tasks.
Is the 1N5402G R0G RoHS and halogen-free compliant?
Yes, the 1N5402G R0G is RoHS compliant and halogen-free in accordance with IEC 61249-2-21, as explicitly stated in the FEATURES section of the Taiwan Semiconductor datasheet. This compliance applies to the standard green-molded DO-201AD package version, including the R0G suffix variant.
What package type does the 1N5402G R0G use, and what are its key mechanical properties?
The 1N5402G R0G uses the DO-201AD package: an axial-leaded, molded plastic case with UL 94V-0 flammability rating, pure tin-plated leads meeting J-STD-002 solderability, and cathode polarity indicated by a band. Its weight is approximately 1.20g, and it complies with JESD 201 Class 2 whisker testing.
Does the 1N5402G R0G have AEC-Q101 qualification?
The base 1N5402G R0G is not AEC-Q101 qualified; however, Taiwan Semiconductor offers an AEC-Q101 qualified version under ordering code 1N5402GH (with 'H' suffix). The R0G suffix denotes standard commercial-grade packaging - users requiring automotive qualification must specify the GH variant explicitly.
1N5402G R0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-201AD, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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 R0G FAQ
1.How can I place an order for 1N5402G R0G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5402G 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 1N5402G R0G reliable?
The price and inventory of 1N5402G R0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5402G R0G is usually 5 days.
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4.How is shipping managed for 1N5402G R0G?
1N5402G R0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5402G 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 1N5402G R0G?
For technical support, including 1N5402G R0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5402G R0G requirements.
6.How does Aetrix verify that 1N5402G R0G is sourced from the original manufacturer or authorized distributors?
All 1N5402G 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 1N5402G R0G meets industry standards.
7.What is the process for return or replacement of 1N5402G R0G?
All 1N5402G R0G units undergo pre-shipment inspection (PSI). If there is an issue with 1N5402G 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 1N5402G R0G part is unused and in its original packaging.
Return procedure for 1N5402G R0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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