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Taiwan Semiconductor Corporation FR306G B0G
- Part No.:
- FR306G B0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
FR306G B0G.pdf
- Description:
- DIODE GEN PURP 800V 3A DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:3,911
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Product details
Overview
FR306G B0G from Taiwan Semiconductor is a 3A, 800V fast recovery rectifier diode in DO-201AD package, featuring 500 ns reverse recovery time, 1.3 V forward voltage at 3 A, and 125 A surge current capability; used in switching-mode power supplies and DC-DC converters requiring high efficiency and reliability.
For engineers reviewing the FR306G B0G datasheet, FR306G B0G pinout, FR306G B0G application, or FR306G B0G equivalent, key selection criteria include repetitive peak reverse voltage (800 V), thermal resistance (35 °C/W), junction temperature range (–55 to +150 °C), and AEC-Q101 qualification status of related variants.
Technical Context
This single-die, axial-lead fast recovery rectifier operates with low conduction loss due to its 1.3 V VF at 3 A and maintains stable performance across –55 °C to +150 °C junction temperature. Its 500 ns trr enables efficient operation in high-frequency switching topologies up to several hundred kHz.
The DO-201AD package provides mechanical robustness, UL 94V-0 mold compound, pure tin-plated leads compliant with J-STD-002, and meets JESD 201 Class 2 whisker resistance - supporting industrial and automotive-grade assembly requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 800 V - maximum repetitive reverse blocking voltage without breakdown |
| IF | 3 A - continuous average forward current rating at 75 °C case temperature |
| IFSM | 125 A - non-repetitive surge current tolerance for 8.3 ms half-sine wave |
| trr | 500 ns - measured at IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A; defines switching speed in SMPS |
| VF | 1.3 V - forward voltage drop at 3 A and 25 °C junction temperature; determines conduction loss |
| RθJA | 35 °C/W - junction-to-ambient thermal resistance; sets heatsink requirement for 3 A continuous operation |
| IR @ 25°C | 5 µA - maximum leakage at rated VRRM; critical for low-power standby circuits |
Pinout & Package
DO-201AD package: axial-lead, molded plastic case with cathode band marking; 1.20 g typical weight; UL 94V-0 rated compound; pure tin-plated leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Forward current entry point | Connected to lower-potential side of circuit; must handle full 3 A continuous and 125 A surge |
| Cathode (Lead 2, banded end) | Forward current exit / reverse blocking terminal | Marked by visible band; connects to higher-potential node; blocks up to 800 V reverse voltage |
Key Features
| Feature | Design Value |
|---|---|
| Fast recovery time | 500 ns - reduces switching losses and EMI in 100–500 kHz SMPS designs |
| Low forward voltage | 1.3 V @ 3 A - minimizes conduction loss and thermal stress under full load |
| High surge current rating | 125 A @ 8.3 ms - withstands inrush and transient overloads without failure |
| RoHS & halogen-free | Compliant per IEC 61249-2-21 - supports environmentally regulated industrial and automotive production |
| Junction temperature range | –55 to +150 °C - enables operation in under-hood and industrial ambient environments |
Applications
| AC-DC Front-End Rectification | DC-DC Converter Output Stage |
|---|---|
Use Scenario: Input rectification in offline switchers converting 85–265 VAC to high-voltage DC bus. IC Role / Device Role / Timing Role: Fast recovery rectifier handling 3 A average output current with minimal reverse recovery loss. Use Value: 500 ns trr and 800 V VRRM enable reliable operation across universal input ranges while limiting EMI generation. | Use Scenario: Secondary-side rectification in isolated flyback or forward converters delivering 12–48 V outputs. IC Role / Device Role / Timing Role: High-efficiency unidirectional current path with low VF and stable thermal behavior. Use Value: 1.3 V VF at 3 A reduces power dissipation versus standard recovery diodes, improving overall converter efficiency by ~0.8%. |
| Industrial Motor Drive Snubber | Automotive DC-DC Module |
Use Scenario: Snubber network clamping in IGBT-based variable frequency drives operating at 10–20 kHz. IC Role / Device Role / Timing Role: Fast recovery clamp diode absorbing inductive kickback energy during switching transitions. Use Value: 125 A IFSM and 35 °C/W RθJA ensure robust transient energy handling without thermal runaway. | Use Scenario: 12 V to 5 V/3.3 V step-down conversion in automotive body control modules. IC Role / Device Role / Timing Role: Primary rectifier in compact, thermally constrained DC-DC stages meeting AEC-Q101 requirements. Use Value: DO-201AD package with JESD 201 Class 2 whisker resistance supports long-term reliability in automotive vibration and thermal cycling environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH3R08 | Same 3 A / 800 V rating; 75 ns trr, lower VF (1.15 V), TO-220AC package | Requires PCB footprint change; better for high-frequency, high-efficiency designs with heatsinking | Prefer when lower switching loss and thermal margin outweigh DO-201AD size constraints |
| ES3J | 3 A / 600 V; 35 ns trr; SMA package; VF = 1.7 V | Limited to ≤600 V systems; smaller footprint but higher conduction loss and lower surge rating (100 A) | Select only if voltage stress stays below 600 V and board space is critical |
Compared with STTH3R08 and ES3J, FR306G B0G offers optimal balance of 800 V blocking, 500 ns recovery, and DO-201AD manufacturability - making it preferred for cost-sensitive, medium-frequency industrial power supplies where leaded reliability and legacy compatibility matter.
Availability
FR306G B0G is available at Aetrix Electronics and suitable for DC-DC converters, switching mode inverters, and industrial motor drive snubbers requiring stable component supply and long-term sourcing continuity.
Supply support for FR306G B0G 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 automotive markets since 1979.
The FR30xG series is designed specifically for high-reliability power conversion applications demanding fast recovery, high surge tolerance, and extended temperature operation - targeting switching power supplies, UPS systems, and motor controls.
FAQ
What is the maximum repetitive peak reverse voltage rating for FR306G B0G?
The FR306G B0G has a maximum repetitive peak reverse voltage (VRRM) of 800 V, verified per Taiwan Semiconductor's H2105 datasheet. This rating ensures reliable blocking capability in 600 V-class DC bus and universal AC input applications. Exceeding 800 V may cause avalanche breakdown or premature failure. Derating is recommended for high-temperature or high-humidity environments.
Does FR306G B0G meet AEC-Q101 qualification standards?
No - FR306G B0G (B0G suffix) is not AEC-Q101 qualified. Only variants marked with "H" (e.g., FR306GH) are AEC-Q101 certified. The B0G version shares identical electrical and thermal specifications but lacks the extended stress testing required for automotive under-hood use. For automotive applications, specify FR306GH instead.
What is the reverse recovery time (trr) of FR306G B0G and how is it measured?
The FR306G B0G has a reverse recovery time (trr) of 500 ns, measured under conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A per the H2105 datasheet. This value reflects the time required for minority carriers to clear after forward conduction, directly impacting switching loss and EMI in high-frequency converters.
Can FR306G B0G replace FR305G or FR307G in an existing design?
FR306G B0G can replace FR305G (600 V) if system voltage stress remains ≤800 V, offering higher blocking margin. It cannot safely replace FR307G (1000 V) in 1000 V-rated circuits due to its 800 V VRRM. All three share identical package, thermal, and forward characteristics - only VRRM and trr differ across the FR30xG family.
What is the thermal resistance (RθJA) of FR306G B0G and how does it affect layout?
The FR306G B0G has a junction-to-ambient thermal resistance (RθJA) of 35 °C/W in free-air conditions. At 3 A continuous current, this results in ~105 °C junction rise above ambient - requiring adequate copper area, ventilation, or derating above 75 °C ambient. Layout should maximize solder pad thermal mass and avoid nearby heat sources.
FR306G B0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-201AD, Axial
- Packaging:
- Bulk
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 800 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 500 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 800 V
- Capacitance @ Vr, F:
- 30pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201AD
- Operating Temperature - Junction:
- -55°C ~ 150°C
FR306G B0G FAQ
1.How can I place an order for FR306G B0G through Aetrix?
Please submit a Request for Quotation (RFQ) for FR306G B0G 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 FR306G B0G reliable?
The price and inventory of FR306G B0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FR306G B0G is usually 5 days.
3.What payment methods are accepted for FR306G B0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FR306G B0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FR306G B0G?
FR306G B0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FR306G B0G 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 FR306G B0G?
For technical support, including FR306G B0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FR306G B0G requirements.
6.How does Aetrix verify that FR306G B0G is sourced from the original manufacturer or authorized distributors?
All FR306G B0G 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 FR306G B0G meets industry standards.
7.What is the process for return or replacement of FR306G B0G?
All FR306G B0G units undergo pre-shipment inspection (PSI). If there is an issue with FR306G B0G, 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 FR306G B0G part is unused and in its original packaging.
Return procedure for FR306G B0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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