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Taiwan Semiconductor Corporation FR105G
- Part No.:
- FR105G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
FR105G.pdf
- Description:
- DIODE GEN PURP 600V 1A DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:9,841
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Product details
Overview
FR105G from Taiwan Semiconductor is a 1A, 600V fast recovery rectifier diode in DO-204AL (DO-41) package, featuring 250 ns reverse recovery time, 1.3 V max forward voltage at 1 A, and 30 A surge capability - used in switching-mode power supplies and DC-DC converters.
For engineers reviewing the FR105G datasheet, FR105G pinout, FR105G application, or FR105G equivalent, key selection factors include its 600 V repetitive peak reverse voltage, thermal resistance of 70 °C/W, AEC-Q101 qualification option, RoHS/halogen-free compliance, and glass-passivated junction for reliability in automotive and industrial power conversion.
Technical Context
The FR105G is a single-die, through-hole fast recovery rectifier optimized for high-efficiency switching applications. Its 250 ns trr enables reduced switching losses in 50–500 kHz SMPS topologies, while the 600 V VRRM rating supports universal-input offline designs.
Thermally, it operates from –55 °C to +150 °C with 70 °C/W junction-to-ambient resistance. The glass-passivated chip junction and pure tin-plated leads meet J-STD-002 solderability and JESD201 Class 2 whisker requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - supports universal AC input (85–265 VAC) bridge rectification with safety margin |
| IF | 1 A continuous - suitable for low-to-medium power adapters and auxiliary rails |
| trr | 250 ns - enables efficient operation in high-frequency flyback and forward converters |
| VF (max) | 1.3 V @ 1 A, 25°C - limits conduction loss to ≤1.3 W at full load |
| IFSM | 30 A - withstands inrush currents during cold-start in SMPS |
| RθJA | 70 °C/W - requires minimal PCB copper area for thermal management in open-frame designs |
| IR (max) | 5 µA @ 25°C - ensures low leakage in high-impedance hold-up circuits |
Pinout & Package
Package: DO-204AL (DO-41), axial lead, glass-passivated silicon die, cathode indicated by band. Weight: 0.340 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Forward current entry | Connected to lower-potential side (e.g., transformer secondary center-tap or ground return) |
| Cathode (banded end) | Forward current exit / reverse blocking terminal | Connected to output rail or positive bus; blocks 600 V reverse voltage when off |
Key Features
| Feature | Design Value |
|---|---|
| Fast recovery (250 ns) | Reduces switching loss and EMI in 100–300 kHz converters vs. standard rectifiers |
| Glass passivated junction | Enhances moisture resistance and long-term reliability under thermal cycling |
| AEC-Q101 qualified option (FR105GH) | Validated for automotive power modules requiring stress-tested discrete diodes |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and global environmental regulations for industrial OEMs |
| 70 °C/W RθJA | Enables natural-convection cooling without heatsink in <5 W applications |
Applications
| AC-DC Adapter Power Supply | Automotive Body Control Module |
|---|---|
Use Scenario: 12 V output, 5–10 W flyback converter with universal AC input. IC Role / Device Role / Timing Role: Output rectifier handling 1 A average forward current and 30 A surge during startup. Use Value: 250 ns trr minimizes reverse recovery loss, improving efficiency by ~1.2% over 500 ns alternatives at 250 kHz. | Use Scenario: 12 V/24 V DC-DC buck stage powering microcontrollers and sensors in BCM. IC Role / Device Role / Timing Role: Input-side rectifier in isolated auxiliary supply, exposed to load dump transients. Use Value: 600 V VRRM and 30 A IFSM ensure robustness against ISO 7637-2 Pulse 5a (load dump up to 60 V). |
| Industrial PLC I/O Module | LED Driver Secondary Side |
Use Scenario: 24 V isolated DC-DC converter powering digital I/O circuitry in harsh factory environments. IC Role / Device Role / Timing Role: Secondary-side fast recovery rectifier operating continuously at 60°C ambient. Use Value: Glass passivation and JESD201 Class 2 whisker resistance prevent field failures due to humidity and vibration. | Use Scenario: Constant-current LED driver with 36 V output, using flyback topology. IC Role / Device Role / Timing Role: Output rectifier conducting 1 A average current with high ripple content. Use Value: Low 1.3 V VF reduces conduction loss, enabling >90% efficiency at full load without forced air cooling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R06 | Same 1 A / 600 V rating; trr = 200 ns (slightly faster); TO-220AC package | Suitable for higher-power designs requiring heatsink mounting and higher IFSM (50 A) | Select STTH1R06 when board space allows TO-220 and thermal budget exceeds 1.5 W |
| ON Semi MUR106 | 1 A / 600 V; trr = 35 ns (ultrafast); same DO-41 package; VF = 1.7 V (higher) | Better for >500 kHz resonant converters where speed dominates loss trade-off | Choose MUR106 only if trr < 50 ns is required and higher VF is acceptable |
Compared with STTH1R06 and MUR106, the FR105G offers optimal balance of speed (250 ns), low VF (1.3 V), DO-41 footprint, and cost for 5–15 W industrial and automotive auxiliary supplies.
Availability
FR105G is available at Aetrix Electronics and suitable for AC-DC adapters, automotive body control modules, and industrial PLC I/O modules requiring stable component supply with consistent DO-41 form factor and AEC-Q101 qualification path.
Supply support for FR105G 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, automotive, and consumer markets since 1979.
The FR101G–FR107G series was designed specifically for cost-sensitive, high-reliability power conversion applications requiring fast recovery, robust surge handling, and environmental compliance - especially in space-constrained through-hole designs.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) of the FR105G?
The FR105G has a VRRM of 600 V, verified per Taiwan Semiconductor's H2104 datasheet. This rating allows safe operation in universal-input (85–265 VAC) bridge configurations with sufficient derating margin. It is distinct from the FR104G (400 V) and FR106G (800 V) in the same family.
Does the FR105G have AEC-Q101 qualification?
The base FR105G is not AEC-Q101 qualified, but the variant FR105GH is explicitly listed as AEC-Q101 qualified in the ordering information section of the datasheet. Customers requiring automotive-grade validation must specify the "H" suffix when ordering FR105G.
What is the reverse recovery time (trr) of the FR105G and how is it measured?
The FR105G has a typical reverse recovery time of 250 ns, measured under conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A per the datasheet's electrical specifications table. This value is confirmed across the FR105G device group and differentiates it from FR104G (150 ns) and FR106G (500 ns).
Can the FR105G replace the FR104G in an existing design?
Yes, the FR105G is a direct drop-in replacement for FR104G in DO-41 layouts, sharing identical package, pinout, thermal characteristics, and forward current rating. Its higher 600 V VRRM provides additional margin, though designers should verify that increased reverse voltage does not affect snubber or clamping network sizing.
What is the forward voltage (VF) specification for the FR105G at rated current?
The FR105G has a maximum forward voltage of 1.3 V at 1 A and 25°C, as specified in the electrical characteristics table. This value is measured under pulse conditions (PW = 0.3 ms) and represents worst-case conduction loss - actual VF drops to ~1.15 V at 125°C junction temperature.
FR105G 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):
- 600 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):
- 250 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 600 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
FR105G FAQ
1.How can I place an order for FR105G through Aetrix?
Please submit a Request for Quotation (RFQ) for FR105G 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 FR105G reliable?
The price and inventory of FR105G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FR105G is usually 5 days.
3.What payment methods are accepted for FR105G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FR105G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FR105G?
FR105G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FR105G 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 FR105G?
For technical support, including FR105G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FR105G requirements.
6.How does Aetrix verify that FR105G is sourced from the original manufacturer or authorized distributors?
All FR105G 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 FR105G meets industry standards.
7.What is the process for return or replacement of FR105G?
All FR105G units undergo pre-shipment inspection (PSI). If there is an issue with FR105G, 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 FR105G part is unused and in its original packaging.
Return procedure for FR105G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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