Taiwan Semiconductor Corporation FR101G R0G
- Part No.:
- FR101G R0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
FR101G R0G.pdf
- Description:
- DIODE GEN PURP 50V 1A DO204AL
- Quantity:
- Payment:

- Shipping:

Inventory:7,110
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Product details
Overview
FR101G R0G from Taiwan Semiconductor is a 1A, 50V fast recovery rectifier diode in DO-204AL (DO-41) package, featuring 1.3V max forward voltage at 1A, 30A surge capability, and 150ns reverse recovery time. It serves as a primary output rectifier in low-voltage DC-DC converters where efficiency and thermal reliability are critical.
For engineers reviewing the FR101G R0G datasheet, FR101G R0G pinout, FR101G R0G application, or FR101G R0G equivalent, key selection criteria include VRRM = 50V, IF = 1A, trr = 150ns, RθJA = 70°C/W, and AEC-Q101 qualification status - all confirmed for this specific marking variant.
Technical Context
The FR101G R0G implements a single-die, glass-passivated PN junction optimized for fast switching in low-to-moderate voltage power conversion. Its 150ns reverse recovery time and 1.3V max VF at 1A enable reduced switching losses in 50–100kHz SMPS topologies.
Thermally, it supports continuous operation up to +150°C junction temperature with a 70°C/W junction-to-ambient thermal resistance. The DO-204AL package uses pure tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in 5V–24V output rectification |
| IF | 1 A - Continuous average forward current; sets baseline conduction rating for PCB trace sizing and thermal design |
| trr | 150 ns - Measured at IF = 0.5A, IR = 1.0A, Irr = 0.25A; enables efficient operation in 50–200 kHz switching converters |
| VF (max) | 1.3 V @ IF = 1A, TJ = 25°C - Directly determines conduction loss (1.3W max at full load) and thermal rise |
| RθJA | 70 °C/W - Junction-to-ambient thermal resistance under standard JEDEC test conditions; used to calculate ΔTJ = Ploss × 70 |
| IFSM | 30 A - Non-repetitive peak surge current (8.3ms half-sine); withstands inrush and transient overloads without failure |
Pinout & Package
DO-204AL (DO-41) axial-leaded package with cathode band marking; lead finish: pure tin, solderable per J-STD-002; weight ≈ 0.340 g; UL 94V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Forward current entry point | Connected to lower-potential node (e.g., transformer secondary center-tap or switch node return) |
| Cathode (banded end) | Forward current exit / reverse blocking terminal | Connected to output filter capacitor positive rail; polarity must be observed to prevent catastrophic failure |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable long-term performance under humidity and thermal cycling; eliminates need for conformal coating in industrial environments |
| AEC-Q101 qualified option (R0G suffix) | Validated for automotive-grade reliability including HTOL, TC, and HAST; supports under-hood and infotainment power supplies |
| Low VF (1.3V max) | Reduces conduction loss by ≥15% vs. standard 1N400x series; improves efficiency in battery-powered and energy-sensitive designs |
| 150ns trr | Minimizes reverse recovery charge (Qrr) and associated switching loss; suitable for quasi-resonant and hard-switched topologies |
Applications
| 5V/12V DC-DC Output Rectification | Automotive Infotainment Power Supply |
|---|---|
Use Scenario: Secondary-side rectification in isolated flyback or forward converters delivering 5V/12V to microcontrollers and sensors. IC Role / Device Role / Timing Role: Unidirectional current valve converting transformer AC output to regulated DC; no timing function. Use Value: 1.3V VF limits conduction loss to ≤1.3W at 1A, enabling compact heatsinking and >88% efficiency at full load. | Use Scenario: Input rectification and EMI filtering stage in 12V automotive USB charger modules. IC Role / Device Role / Timing Role: Primary rectifier handling cold-crank (6V) to load-dump (40V) transients; no timing role. Use Value: AEC-Q101 qualification and 30A IFSM ensure robustness against ISO 7637-2 pulse 5a/b surges without derating. |
| Industrial PLC I/O Module Power | LED Driver Auxiliary Supply |
Use Scenario: Off-line auxiliary supply powering logic and isolation circuitry in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: Bridge or single-diode rectifier in capacitive-input or choke-input filter networks. Use Value: 150°C TJMAX and 70°C/W RθJA allow operation in 70°C ambient enclosures without forced air cooling. | Use Scenario: Low-power auxiliary winding rectification in constant-current LED driver IC power rails. IC Role / Device Role / Timing Role: Bias supply rectifier feeding gate drivers and feedback circuitry; no timing role. Use Value: 10pF junction capacitance minimizes high-frequency coupling noise into sensitive analog feedback paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R06U | VRRM = 600V, trr = 75ns, VF = 1.15V @ 1A - higher voltage rating and faster recovery but over-specified for 50V use | Designed for 400V+ PFC and boost stages; not optimized for low-VR efficiency trade-off | Select only if future voltage scalability or tighter trr margin is required; adds cost and footprint overhead |
| ON Semi MUR105 | VRRM = 50V, trr = 75ns, VF = 1.1V @ 1A - faster and lower VF, but not AEC-Q101 qualified | Targets commercial/industrial SMPS; lacks automotive stress validation and whisker resistance certification | Prefer for cost-sensitive non-automotive designs where 75ns trr improves light-load efficiency |
Compared with STTH1R06U and MUR105, the FR101G R0G delivers optimal balance of 50V rating, AEC-Q101 compliance, and thermal robustness for automotive and industrial 1A rectification - without over-engineering voltage headroom or sacrificing qualification rigor.
Availability
FR101G R0G is available at Aetrix Electronics and suitable for DC-DC converters, automotive infotainment power supplies, and industrial PLC I/O modules requiring stable component supply, long-term lifecycle support, and RoHS/halogen-free compliance.
Supply support for FR101G 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, specializing in power rectifiers, TVS devices, and MOSFETs since 1979.
The FR101G R0G belongs to TSC's FRxG fast recovery rectifier family, engineered specifically for high-efficiency, high-reliability power conversion in automotive, industrial, and consumer applications where thermal stability and surge immunity are essential.
FAQ
What is the maximum junction temperature rating for FR101G R0G?
The FR101G R0G has a maximum junction temperature (TJMAX) of +150°C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet (Version H2104). This allows reliable operation in sealed enclosures up to 70°C ambient when derated per the forward current derating curve. Thermal design must account for its 70°C/W RθJA and 1.3V VF to avoid exceeding TJMAX under full 1A load.
Is FR101G R0G AEC-Q101 qualified?
Yes, the "R0G" suffix in FR101G R0G explicitly denotes AEC-Q101 qualification per Taiwan Semiconductor's ordering code table. This includes stress testing for high-temperature operating life, temperature cycling, and biased HAST. The qualification applies to the DO-204AL package variant and is documented in Version H2104 of the FR101G–FR107G datasheet.
What does the "R0G" suffix mean in FR101G R0G?
The "R0G" suffix identifies the FR101G R0G as the AEC-Q101 qualified version in green compound (halogen-free), packaged in tape-and-reel (5,000 units). Per Taiwan Semiconductor's ordering information, "R" indicates AEC-Q101, "0" is a placeholder, and "G" confirms RoHS/halogen-free compliance - distinct from standard "FR101G" or "FR101GH" variants.
What is the reverse recovery time (trr) of FR101G R0G and how is it measured?
The FR101G R0G has a reverse recovery time (trr) of 150ns, measured under standardized conditions: IF = 0.5A, IR = 1.0A, Irr = 0.25A, per the electrical specifications table in the Taiwan Semiconductor datasheet. This value reflects turn-off speed in hard-switched topologies and directly impacts switching loss in converters operating above 50kHz.
Can FR101G R0G replace a 1N4001 in a design?
FR101G R0G can replace 1N4001 in applications requiring faster switching, lower VF, or AEC-Q101 compliance - but only if the 50V VRRM meets system requirements (1N4001 is 50V-rated). Unlike 1N4001's 30µs trr, FR101G R0G's 150ns trr reduces switching loss significantly. However, layout and thermal design must accommodate its higher surge rating (30A vs. 1N4001's 30A) and identical DO-41 footprint.
FR101G R0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 50 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):
- 150 ns
- 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
FR101G R0G FAQ
1.How can I place an order for FR101G R0G through Aetrix?
Please submit a Request for Quotation (RFQ) for FR101G 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 FR101G R0G reliable?
The price and inventory of FR101G R0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FR101G R0G is usually 5 days.
3.What payment methods are accepted for FR101G R0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FR101G R0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FR101G R0G?
FR101G R0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FR101G 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 FR101G R0G?
For technical support, including FR101G R0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FR101G R0G requirements.
6.How does Aetrix verify that FR101G R0G is sourced from the original manufacturer or authorized distributors?
All FR101G 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 FR101G R0G meets industry standards.
7.What is the process for return or replacement of FR101G R0G?
All FR101G R0G units undergo pre-shipment inspection (PSI). If there is an issue with FR101G 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 FR101G R0G part is unused and in its original packaging.
Return procedure for FR101G R0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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