Taiwan Semiconductor Corporation FR102G R0G
- Part No.:
- FR102G R0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
FR102G R0G.pdf
- Description:
- DIODE GEN PURP 100V 1A DO204AL
- Quantity:
- Payment:

- Shipping:

Inventory:7,086
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Product details
Overview
FR102G R0G from Taiwan Semiconductor is a 1A, 100V fast recovery rectifier diode in DO-204AL (DO-41) package, featuring 150ns reverse recovery time, 1.3V max forward voltage at 1A, and 30A surge capability. It serves as primary-side output rectification in low-power SMPS and DC-DC converters requiring high efficiency and thermal reliability.
For engineers reviewing the FR102G R0G datasheet, FR102G R0G pinout, FR102G R0G application, or FR102G R0G equivalent, key selection criteria include VRRM=100V, trr=150ns, VF≤1.3V at IF=1A, TJmax=150°C, and DO-41 mechanical compatibility with automated through-hole assembly.
Technical Context
This discrete silicon PN-junction fast recovery rectifier uses glass-passivated chip construction for enhanced moisture resistance and long-term stability under thermal cycling. Its 150ns reverse recovery time enables operation in switching frequencies up to ~100kHz without excessive switching loss.
The device operates with a maximum junction temperature of 150°C and exhibits only 5µA reverse leakage at 25°C - critical for maintaining efficiency in standby and light-load conditions in offline power supplies and adapter designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - blocks up to 100V repetitive reverse voltage, suitable for 24–48V input DC-DC stages |
| IF | 1 A continuous - supports average output current up to 1A in conduction mode |
| trr | 150 ns - enables efficient operation in 50–100 kHz switching converters with minimal turn-off loss |
| VF (max) | 1.3 V @ 1A, 25°C - contributes ≤1.3W conduction loss at full load, reducing heatsink requirements |
| IFSM | 30 A @ 8.3ms - withstands inrush and transient surges common during cold-start in industrial power modules |
| RθJA | 70 °C/W - defines thermal rise from junction to ambient under free-air conditions for layout derating |
Pinout & Package
DO-204AL (DO-41) axial-leaded package with cathode band marking; leads are pure tin-plated, J-STD-002 solderable, and meet JESD201 Class 2 whisker resistance.
| 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 rail; polarity band ensures correct orientation during manual or auto-placement |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Prevents moisture ingress and metallization corrosion, extending field life in humid industrial environments |
| AEC-Q101 qualified option (FR102GH) | Validated for automotive under-hood applications including body control modules and lighting drivers |
| RoHS & halogen-free (IEC 61249-2-21) | Complies with EU environmental directives and enables use in consumer electronics with strict material declarations |
| UL 94V-0 molding compound | Self-extinguishing encapsulation meets fire-safety requirements for enclosed power adapters and medical peripherals |
Applications
| AC-DC Adapter Output Rectification | Industrial DC-DC Converter Secondary Side |
|---|---|
Use Scenario: 12V/1A isolated flyback adapter powering IoT gateways and smart sensors. IC Role / Device Role / Timing Role: Fast recovery rectifier conducting during transformer secondary positive half-cycle; replaces slower 1N400x series. Use Value: 150ns trr reduces switching loss vs. 4µs 1N4002, improving efficiency by ~2.1% at 65kHz. | Use Scenario: 5V/1A isolated DC-DC module in programmable logic controllers (PLCs). IC Role / Device Role / Timing Role: Output rectifier in synchronous or asynchronous secondary stage; handles continuous 1A load with 30A surge tolerance. Use Value: 1.3V VF and 70°C/W RθJA allow operation at 85°C ambient without forced air cooling. |
| LED Driver Secondary Rectification | Automotive Body Control Module Power Supply |
Use Scenario: Constant-voltage LED driver for commercial signage with 24V output. IC Role / Device Role / Timing Role: Primary rectifier converting transformer AC to regulated DC; operates continuously at 80% load. Use Value: Low 5µA IR at 25°C minimizes no-load power draw, supporting Energy Star Tier 2 standby compliance. | Use Scenario: 12V-to-5V buck-derived supply in rear-lamp control unit exposed to underbody thermal cycling. IC Role / Device Role / Timing Role: Input rectifier feeding bulk capacitor; rated for -40°C to +125°C ambient per AEC-Q101 variant. Use Value: Glass passivation and 150°C TJmax ensure reliability across 10,000+ thermal cycles in automotive qualification testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MUR110 | VRRM=100V, trr=75ns (faster), VF=0.95V (lower), DO-41 package | Better efficiency in high-frequency (>150kHz) designs; higher cost | Select when minimizing conduction + switching loss is prioritized over BOM cost |
| Vishay 1N4934 | VRRM=100V, trr=200ns (slower), VF=1.3V, same DO-41, non-AEC-Q101 | Lower surge rating (25A vs. 30A); not qualified for automotive | Acceptable for cost-sensitive consumer adapters where AEC-Q101 and IFSM margin are not required |
Compared with MUR110 and 1N4934, FR102G R0G delivers balanced performance: faster than 1N4934 for mid-frequency SMPS yet more cost-effective than MUR110 while retaining AEC-Q101 availability in GH variant - making it optimal for industrial and tier-2 automotive power supplies.
Availability
FR102G R0G is available at Aetrix Electronics and suitable for DC-DC converters, AC-DC adapters, and LED driver power supplies requiring stable component supply, consistent DO-41 lead geometry, and verified fast-recovery performance.
Supply support for FR102G 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 FR101G–FR107G family targets cost-sensitive, high-reliability power conversion applications - optimized for efficiency, thermal robustness, and manufacturability in through-hole and wave-soldered power supplies.
FAQ
What is the peak repetitive reverse voltage rating for FR102G R0G?
The FR102G R0G has a peak repetitive reverse voltage (VRRM) rating of 100V, verified per Taiwan Semiconductor's H2104 datasheet. This rating defines the maximum reverse-biased voltage the device can block repeatedly without breakdown. It is tested under standard conditions (TA = 25°C) and forms the basis for safe operating area design in 24–48V input power stages. Exceeding this value risks avalanche failure or parametric shift.
Does FR102G R0G have AEC-Q101 qualification?
The base FR102G R0G is not AEC-Q101 qualified; however, the FR102GH variant - identical in electrical specs and DO-41 packaging - is fully AEC-Q101 qualified per H2104 revision. The "H" suffix denotes automotive-grade screening, including stress testing across temperature, humidity, and mechanical vibration profiles. For automotive body electronics, specify FR102GH instead of FR102G R0G.
What is the reverse recovery time (trr) of FR102G R0G and how is it measured?
The FR102G R0G has a reverse recovery time (trr) of 150ns, measured under IF = 0.5A, IR = 1.0A, and Irr = 0.25A per the test circuit in Figure 6 of the H2104 datasheet. This parameter reflects the time required for minority carriers to clear after forward conduction ceases - directly impacting switching loss in hard-switched topologies. It is specified at TA = 25°C and remains stable up to TJ = 125°C.
Can FR102G R0G replace 1N4002 in existing designs?
Yes, FR102G R0G can directly replace 1N4002 in most cases due to identical DO-41 packaging, same 1A IF rating, and matching anode/cathode polarity marking. However, its 150ns trr (vs. 4µs for 1N4002) significantly reduces switching loss in SMPS - but may require verifying snubber network values if used in high-dI/dt circuits. Also confirm VRRM sufficiency: 1N4002 is 100V-rated, matching FR102G R0G exactly.
What is the maximum junction temperature and thermal resistance of FR102G R0G?
The FR102G R0G has a maximum junction temperature (TJmax) of 150°C and a junction-to-ambient thermal resistance (RθJA) of 70°C/W under free-air conditions. These values define safe operating limits: at 1A DC load with 1.3V VF, power dissipation is ~1.3W, resulting in ~91°C junction rise above ambient - leaving 59°C margin before reaching TJmax at 25°C ambient. PCB copper area and airflow affect actual RθJA in system-level layouts.
FR102G 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):
- 100 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 @ 100 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
FR102G R0G FAQ
1.How can I place an order for FR102G R0G through Aetrix?
Please submit a Request for Quotation (RFQ) for FR102G 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 FR102G R0G reliable?
The price and inventory of FR102G R0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FR102G R0G is usually 5 days.
3.What payment methods are accepted for FR102G R0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FR102G R0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FR102G R0G?
FR102G R0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FR102G 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 FR102G R0G?
For technical support, including FR102G R0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FR102G R0G requirements.
6.How does Aetrix verify that FR102G R0G is sourced from the original manufacturer or authorized distributors?
All FR102G 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 FR102G R0G meets industry standards.
7.What is the process for return or replacement of FR102G R0G?
All FR102G R0G units undergo pre-shipment inspection (PSI). If there is an issue with FR102G 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 FR102G R0G part is unused and in its original packaging.
Return procedure for FR102G R0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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