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Taiwan Semiconductor Corporation FR103G
- Part No.:
- FR103G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
FR103G.pdf
- Description:
- DIODE GEN PURP 200V 1A DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:2,870
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Product details
Overview
FR103G from Taiwan Semiconductor is a 1A, 200V fast recovery rectifier diode in DO-204AL (DO-41) package, featuring 150 ns reverse recovery time, 1.3 V max forward voltage at 1 A, and 30 A surge current capability; used in switching-mode DC-DC converters requiring low conduction loss and fast turn-off.
For engineers reviewing the FR103G datasheet, FR103G pinout, FR103G application, or FR103G equivalent, key selection criteria include repetitive peak reverse voltage (200 V), thermal resistance (70 °C/W), junction temperature range (−55 to +150 °C), RoHS and halogen-free compliance, and AEC-Q101 qualification availability.
Technical Context
The FR103G employs a glass-passivated silicon junction for enhanced reliability and moisture resistance, with single-die construction optimized for high-efficiency power conversion. Its fast recovery characteristic (trr = 150 ns) enables operation in high-frequency switching topologies up to several hundred kHz.
Thermal performance is defined by a junction-to-ambient thermal resistance of 70 °C/W under standard PCB mounting conditions. Reverse leakage remains ≤5 µA at 25 °C and ≤100 µA at 125 °C, supporting stable operation across automotive and industrial ambient ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - maximum repetitive reverse blocking voltage; defines safe operating limit in flyback or boost converter output stages |
| IF | 1 A - average forward current rating; determines continuous power handling in unidirectional DC paths |
| IFSM | 30 A - non-repetitive surge current; supports inrush tolerance during system startup or transient overload |
| trr | 150 ns - reverse recovery time; enables efficient operation in 100–500 kHz SMPS without excessive switching loss |
| VF (max) | 1.3 V @ 1 A, 25 °C - forward voltage drop; directly impacts conduction loss and thermal rise in high-duty-cycle applications |
| RθJA | 70 °C/W - thermal resistance; sets minimum heatsinking requirement for 1 A continuous operation at TA ≤ 85 °C |
| IR (max) | 5 µA @ 25 °C - reverse leakage current; ensures minimal standby power loss in battery-backed or energy-sensitive systems |
Pinout & Package
Package: DO-204AL (DO-41), axial-leaded, glass-passivated, cathode indicated by band. Weight: 0.340 g. Leads are pure tin-plated, J-STD-002 solderable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (lead without band) | Forward current entry point | Connects to lower-potential side (e.g., transformer secondary center-tap or switch node) |
| Cathode (lead with band) | Forward current exit / reverse blocking terminal | Connects to output capacitor positive rail or load return; blocks reverse voltage up to 200 V |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Prevents moisture ingress and surface contamination, enabling >10-year field reliability in humid environments |
| Low VF (≤1.3 V) | Reduces conduction loss by ~15% vs. standard recovery diodes at 1 A, lowering thermal stress in compact layouts |
| Fast trr (150 ns) | Minimizes reverse recovery charge (Qrr), reducing EMI and switching losses in 200–500 kHz converters |
| AEC-Q101 qualified option | Validated for automotive power modules requiring extended temperature cycling and mechanical shock endurance |
| RoHS & halogen-free | Complies with IEC 61249-2-21; eliminates brominated flame retardants for safer end-of-life processing |
Applications
| AC-DC Adapter Power Supply | Automotive LED Driver |
|---|---|
Use Scenario: Secondary-side rectification in 5–24 W offline flyback adapters powering consumer electronics. IC Role / Device Role / Timing Role: Unidirectional current steering device converting transformer AC output to regulated DC bus. Use Value: 150 ns trr and 1.3 V VF enable >88% efficiency at full load while meeting EN 55022 conducted EMI limits. | Use Scenario: Output rectification in constant-current LED drivers for interior lighting in passenger vehicles. IC Role / Device Role / Timing Role: High-reliability output diode in buck-derived topology operating across −40 to +105 °C ambient. Use Value: AEC-Q101-qualified variant ensures zero infant mortality under thermal cycling and vibration per ISO 16750-4. |
| Industrial PLC Power Module | UPS DC Link Protection |
Use Scenario: Input rectification stage in 24 V/1 A auxiliary power supply for programmable logic controller backplanes. IC Role / Device Role / Timing Role: Primary rectifier sustaining continuous 1 A load with 30 A surge margin during brownout recovery. Use Value: 70 °C/W RθJA allows derating to 0.85 A at 70 °C ambient without heatsink, simplifying enclosure design. | Use Scenario: Reverse polarity protection and freewheeling path in 48 V DC link of online UPS inverters. IC Role / Device Role / Timing Role: Bidirectional protection element clamping reverse faults and conducting inductive kickback during MOSFET turn-off. Use Value: 200 V VRRM and 30 A IFSM withstand DC link transients exceeding 150 V and 25 A surges per IEC 61000-4-5. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R02 | Same 1 A / 200 V rating; trr = 125 ns (faster), VF = 1.25 V (lower), but RθJA = 75 °C/W (worse thermal) | Preferred in space-constrained 500 kHz designs where switching loss dominates; less suitable for thermally limited enclosures | Select STTH1R02 when minimizing Qrr and EMI is critical; verify thermal margin with layout simulation |
| 1N4935 | Legacy 1 A / 200 V fast recovery diode; trr = 200 ns (slower), VF = 1.4 V (higher), no AEC-Q101 option, RoHS optional | Acceptable for cost-sensitive industrial controls with <300 kHz switching and relaxed reliability requirements | Choose 1N4935 only for legacy redesigns or non-automotive applications where qualification and halogen-free status are not required |
Compared with STTH1R02 and 1N4935, the FR103G delivers balanced trade-offs: superior thermal resistance over STTH1R02 and full automotive qualification plus halogen-free compliance absent in 1N4935-making it optimal for new industrial and automotive power designs requiring long-term supply stability.
Availability
FR103G is available at Aetrix Electronics and suitable for DC-DC converters, switching-mode inverters, and general-purpose power rectification requiring stable component supply, consistent parametric performance, and long-term lifecycle support.
Supply support for FR103G 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 global industrial, automotive, and consumer markets since 1979.
The FR101G–FR107G series was developed to deliver AEC-Q101-capable, high-reliability fast recovery rectifiers with tight parametric consistency across voltage grades for automotive body electronics and industrial power supplies.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for FR103G?
The FR103G has a VRRM rating of 200 V, meaning it can reliably block up to 200 volts of reverse-biased DC or peak AC voltage without breakdown. This value is confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version H2104) and applies under standard operating conditions (TA = 25 °C). Exceeding this voltage risks irreversible junction failure.
Does FR103G have AEC-Q101 qualification?
The FR103G itself is not automatically AEC-Q101 qualified; however, the FR103GH variant (ordering code with "H" suffix) is explicitly qualified per AEC-Q101 Rev D for automotive applications. The base FR103G meets all electrical and mechanical specs but lacks the extended stress testing required for automotive use unless ordered as FR103GH.
What is the reverse recovery time (trr) of FR103G and how is it measured?
The FR103G has a typical reverse recovery time (trr) of 150 ns, measured under conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A using the test circuit shown in Figure 6 of the Taiwan Semiconductor datasheet. This parameter reflects the time required for minority carriers to clear after forward conduction, directly impacting switching loss in high-frequency converters.
Can FR103G replace FR102G or FR104G in an existing design?
FR103G is not a direct replacement for FR102G (100 V) or FR104G (400 V) due to differing VRRM ratings. Substituting FR103G for FR102G risks reverse breakdown in 100 V circuits exposed to transients; substituting for FR104G may cause premature failure under 400 V reverse stress. Voltage grade must match system requirements-only same-numbered variants (e.g., FR103G ↔ FR103GH) are functionally interchangeable.
What packaging options are available for FR103G?
FR103G is supplied in DO-204AL (DO-41) package with two standard packing formats: 5,000 units per tape-and-reel (ordering code FR103G) and 3,000 units per ammo box (ordering code FR103GA0G). Both options feature pure tin-plated leads compliant with J-STD-002 and meet UL 94V-0 flammability requirements.
FR103G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 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 @ 200 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
FR103G FAQ
1.How can I place an order for FR103G through Aetrix?
Please submit a Request for Quotation (RFQ) for FR103G 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 FR103G reliable?
The price and inventory of FR103G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FR103G is usually 5 days.
3.What payment methods are accepted for FR103G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FR103G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FR103G?
FR103G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FR103G 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 FR103G?
For technical support, including FR103G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FR103G requirements.
6.How does Aetrix verify that FR103G is sourced from the original manufacturer or authorized distributors?
All FR103G 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 FR103G meets industry standards.
7.What is the process for return or replacement of FR103G?
All FR103G units undergo pre-shipment inspection (PSI). If there is an issue with FR103G, 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 FR103G part is unused and in its original packaging.
Return procedure for FR103G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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