Taiwan Semiconductor Corporation FR106G B0G
- Part No.:
- FR106G B0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
FR106G B0G.pdf
- Description:
- DIODE GEN PURP 800V 1A DO204AL
- Quantity:
- Payment:

- Shipping:

Inventory:7,995
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Product details
Overview
FR106G B0G from Taiwan Semiconductor is a 1A, 800V fast recovery rectifier diode in DO-204AL (DO-41) package, featuring 500 ns reverse recovery time, 1.3 V max forward voltage at 1 A, and 30 A surge capability. It serves as primary-side AC/DC input rectifier in offline switch-mode power supplies.
For engineers reviewing the FR106G B0G datasheet, FR106G B0G pinout, FR106G B0G application, or FR106G B0G equivalent, key selection criteria include VRRM = 800 V, trr = 500 ns, VF ≤ 1.3 V @ 1 A, IFSM = 30 A, and DO-41 mechanical compatibility with automated through-hole assembly.
Technical Context
This single-die, glass-passivated junction rectifier operates with junction temperature range –55 °C to +150 °C and exhibits low leakage (IR ≤ 5 µA @ 25 °C, ≤ 100 µA @ 125 °C) and 10 pF junction capacitance at 1 MHz / 4 V. Its thermal resistance RθJA is 70 °C/W, supporting continuous 1 A conduction in standard PCB layouts.
The device meets JESD201 Class 2 whisker resistance and UL 94V-0 molding compound requirements. Cathode polarity is marked by a visible band; leads are pure tin plated per J-STD-002 solderability standard.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 800 V - blocks up to 800 V repetitive reverse voltage in bridge or flyback primary rectification |
| IF | 1 A continuous - supports steady-state output current in compact 5–25 W SMPS designs |
| trr | 500 ns - enables efficient operation at 50–100 kHz switching frequencies with reduced switching loss |
| VF | ≤1.3 V @ 1 A, 25 °C - limits conduction loss to ≤1.3 W per diode under full load |
| IFSM | 30 A @ 8.3 ms - withstands cold-start inrush and line-voltage transients without failure |
| RθJA | 70 °C/W - requires minimal copper area for thermal management in cost-sensitive consumer PCBs |
Pinout & Package
DO-204AL (DO-41) axial-leaded package with cathode indicated by a painted band; body length 5.2 mm, lead diameter 0.5 mm, overall length 27 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Forward current entry | Connected to AC input or transformer secondary center-tap in full-wave configurations |
| Cathode (banded end) | Forward current exit / reverse blocking node | Connects to bulk capacitor positive rail; must withstand full VRRM during off-state |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable long-term reliability and moisture resistance without hermetic sealing |
| AEC-Q101 qualified option available (FR106GH) | Validated for automotive under-hood ambient conditions including thermal cycling and vibration |
| RoHS & halogen-free (IEC 61249-2-21) | Complies with global environmental regulations and enables use in consumer electronics with strict material declarations |
| Junction capacitance = 10 pF @ 1 MHz | Minimizes high-frequency displacement current and EMI generation in fast-switching topologies |
Applications
| AC/DC Adapter Input Rectification | Offline Flyback Primary Side |
|---|---|
Use Scenario: 100–240 VAC input rectification in wall-wart adapters delivering 5–12 VDC at ≤1 A. IC Role / Device Role / Timing Role: Unidirectional current steering and voltage conversion stage before bulk capacitor and PWM controller. Use Value: 800 V VRRM provides 2× safety margin over peak line voltage (340 V), while 500 ns trr reduces switching loss vs. general-purpose rectifiers. | Use Scenario: Primary-side rectification in isolated flyback converters powering IoT gateways and smart home hubs. IC Role / Device Role / Timing Role: High-voltage DC bus formation after transformer secondary; critical for efficiency and thermal stability. Use Value: 1.3 V VF and 70 °C/W RθJA enable >85% efficiency at full load without heatsinking in space-constrained enclosures. |
| DC-DC Converter Input Stage | Industrial Control Power Supply |
Use Scenario: Input rectification in 24 VDC-input industrial DC-DC modules converting to ±15 V for op-amp bias rails. IC Role / Device Role / Timing Role: Reverse-polarity protection and transient clamping element upstream of buck regulator IC. Use Value: 30 A IFSM handles motor drive back-EMF surges; 100 µA IR @ 125 °C ensures low standby leakage in always-on systems. | Use Scenario: Auxiliary power supply in PLC I/O modules requiring robust 5 V/3.3 V rails across –40 °C to +85 °C ambient. IC Role / Device Role / Timing Role: Main rectifier in dual-output forward converter feeding isolated control logic and communication interfaces. Use Value: –55 °C to +150 °C TJ rating and JESD201 Class 2 whisker resistance ensure field reliability in uncontrolled 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 |
|---|---|---|---|
| STTH1R08 | VRRM = 800 V, trr = 75 ns, VF = 1.15 V @ 1 A - faster but higher cost and tighter layout constraints | Better suited for >200 kHz PFC stages where ultra-low trr reduces EMI filtering burden | Select STTH1R08 only when trr < 100 ns is required and board space allows TO-220AB footprint |
| 1N4937 | VRRM = 600 V, trr = 200 ns, VF = 1.2 V @ 1 A - lower voltage rating and slower recovery than FR106G B0G | Limited to universal-input SMPS with derated line voltage or non-isolated buck-derived topologies | Use 1N4937 only if system peak reverse stress remains ≤420 V and switching frequency < 50 kHz |
Compared with STTH1R08 and 1N4937, FR106G B0G delivers optimal balance of 800 V blocking, 500 ns trr, and DO-41 manufacturability-making it ideal for cost-sensitive, medium-frequency offline power supplies where thermal margin and assembly compatibility are prioritized over ultra-fast switching.
Availability
FR106G B0G is available at Aetrix Electronics and suitable for AC/DC adapters, offline flyback converters, and industrial control power supplies requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for FR106G 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 consumer markets since 1979.
The FR101G–FR107G series was designed specifically for high-reliability, cost-optimized AC/DC front-end rectification in mass-produced power supplies-emphasizing robustness, manufacturability, and compliance with global environmental standards.
FAQ
What is the maximum junction temperature rating for FR106G B0G?
The FR106G B0G has a maximum junction temperature (TJ) of +150 °C and a minimum of –55 °C. This wide operating range allows reliable deployment in enclosed power supplies and industrial environments where ambient temperatures exceed 70 °C. Derating curves in the FR106G B0G datasheet define safe current limits above 25 °C ambient, ensuring thermal stability under sustained load.
Is FR106G B0G RoHS and halogen-free compliant?
Yes, FR106G B0G is RoHS compliant and halogen-free per IEC 61249-2-21. The molding compound contains no brominated flame retardants or chlorine-based additives, and lead content is below 1000 ppm. This compliance supports export to EU, China, and Korea markets and simplifies material declaration for end-product certification.
What does the "B0G" suffix indicate in FR106G B0G?
The "B0G" suffix in FR106G B0G denotes packaging and marking configuration: "B" indicates tape-and-reel packaging (5,000 pcs/reel), "0" is a placeholder for date code format, and "G" confirms green (halogen-free) compound. It is distinct from "H" (AEC-Q101 qualified) and "A0G" (ammo box). FR106G B0G is not AEC-Q101 certified.
How does FR106G B0G compare to FR107G in terms of reverse voltage rating?
FR106G B0G has a repetitive peak reverse voltage (VRRM) of 800 V, while FR107G is rated for 1000 V. Both share identical forward characteristics (1 A IF, 1.3 V VF), thermal specs (RθJA = 70 °C/W), and recovery time (500 ns trr). Choose FR106G B0G for designs where 800 V margin suffices-typically universal-input SMPS with ≤340 V peak line voltage-to optimize cost and inventory.
Can FR106G B0G replace a general-purpose 1N4007 in a switching power supply?
No-FR106G B0G is not a drop-in replacement for 1N4007 in switching applications. While both are DO-41 rectifiers rated 1 A, the 1N4007 has trr > 2 µs (vs. 500 ns for FR106G B0G) and VF ≈ 1.1 V but poor high-frequency performance. Using 1N4007 in SMPS causes excessive switching loss, overheating, and EMI. FR106G B0G's fast recovery is essential for efficient operation above 20 kHz.
FR106G B0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Bulk
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 800 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 500 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 800 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
FR106G B0G FAQ
1.How can I place an order for FR106G B0G through Aetrix?
Please submit a Request for Quotation (RFQ) for FR106G 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 FR106G B0G reliable?
The price and inventory of FR106G B0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FR106G B0G is usually 5 days.
3.What payment methods are accepted for FR106G B0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FR106G B0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FR106G B0G?
FR106G B0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FR106G 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 FR106G B0G?
For technical support, including FR106G B0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FR106G B0G requirements.
6.How does Aetrix verify that FR106G B0G is sourced from the original manufacturer or authorized distributors?
All FR106G 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 FR106G B0G meets industry standards.
7.What is the process for return or replacement of FR106G B0G?
All FR106G B0G units undergo pre-shipment inspection (PSI). If there is an issue with FR106G 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 FR106G B0G part is unused and in its original packaging.
Return procedure for FR106G B0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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