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Taiwan Semiconductor Corporation FR305GH
- Part No.:
- FR305GH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
FR305GH.pdf
- Description:
- 250NS, 3A, 600V, FAST RECOVERY R
- Quantity:
- Payment:
- Shipping:
Inventory:3,750
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Product details
Overview
FR305GH from Taiwan Semiconductor is an AEC-Q101 qualified fast recovery rectifier diode in DO-201AD package, rated for 3A average forward current, 600V repetitive peak reverse voltage (VRRM), and 250ns reverse recovery time (trr) at IF = 0.5A. It delivers low forward voltage drop (1.3V max at 3A, 25°C) and high surge capability (125A IFSM), targeting power conversion stages in automotive-grade DC-DC modules.
For engineers reviewing the FR305GH datasheet, FR305GH pinout, FR305GH application, or FR305GH equivalent, key selection criteria include its AEC-Q101 qualification, 600V VRRM, 250ns trr, DO-201AD mechanical compatibility, and thermal resistance of 35°C/W - all critical for reliable operation in switching inverters and on-board chargers.
Technical Context
This single-die, unidirectional fast recovery rectifier uses optimized silicon junction design to achieve reduced reverse recovery charge and minimized switching losses. Its 600V VRRM and 250ns trr enable efficient operation in 48V–400V bus systems with high-frequency PWM control.
The device features pure tin-plated leads compliant with J-STD-002, UL 94V-0 molding compound, and meets JESD201 Class 2 whisker resistance. Junction temperature range is –55°C to +150°C, supporting under-hood automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - Maximum non-repetitive reverse voltage the diode blocks without breakdown; defines usable input voltage range in buck/boost converters. |
| IF | 3 A - Continuous average forward current rating at 75°C case temperature; determines heatsink sizing in sustained-load applications. |
| trr | 250 ns - Measured at IF = 0.5A, IR = 1.0A, Irr = 0.25A; directly impacts switching loss and EMI in >50kHz SMPS designs. |
| VF | 1.3 V max at 3A, 25°C - Forward voltage drop defining conduction loss; lower than standard recovery diodes, improving efficiency at nominal load. |
| IFSM | 125 A - Peak non-repetitive surge current (8.3ms half-sine); supports inrush tolerance during cold-start in automotive power supplies. |
| RθJA | 35 °C/W - Junction-to-ambient thermal resistance in free-air; used to calculate maximum junction temperature rise under given power dissipation. |
Pinout & Package
DO-201AD axial-leaded package with cathode band marking; body length 9.5mm ±0.3mm, lead diameter 0.8mm, overall weight ~1.20g. Leads are pure tin-plated and solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Forward current entry point | Connected to lower-potential side (e.g., switch node in synchronous buck); polarity must match PCB silkscreen. |
| Cathode (banded end) | Forward current exit / reverse blocking terminal | Connected to higher-potential rail (e.g., output capacitor positive); cathode band orientation ensures correct placement in automated assembly. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTOL, TC, UHAST - enables use in engine control, ADAS, and infotainment power rails. |
| Low VF (1.3V max) | Reduces conduction loss by ~15% vs. legacy 1N5408 at 3A, lowering thermal load in space-constrained enclosures. |
| 250ns trr | Enables stable operation up to 200kHz switching frequency without excessive ringing or cross-conduction in half-bridge topologies. |
| DO-201AD mechanical standardization | Ensures drop-in replacement compatibility with legacy rectifiers and compatibility with existing wave-solder and reflow profiles. |
Applications
| Automotive DC-DC Converters | Industrial Switching Inverters |
|---|---|
Use Scenario: High-efficiency 12V-to-48V bidirectional converter in 48V mild-hybrid vehicles. IC Role / Device Role / Timing Role: Fast recovery output rectifier in synchronous buck-boost stage, handling continuous 3A load with transient surges. Use Value: AEC-Q101 qualification and 150°C TJMAX ensure reliability across under-hood temperature cycling; 250ns trr minimizes dead-time loss. | Use Scenario: Auxiliary power supply in PLC-controlled motor drives operating at 100kHz PWM. IC Role / Device Role / Timing Role: Secondary-side freewheeling diode in isolated flyback converter powering gate drivers and logic. Use Value: 600V VRRM provides margin against reflected transients; 35°C/W RθJA allows natural convection cooling without heatsink. |
| Solar Microinverters | Server PSU Hold-Up Circuits |
Use Scenario: Output rectification in transformerless microinverter DC link stage interfacing with 600V PV arrays. IC Role / Device Role / Timing Role: Fast recovery clamp diode managing leakage inductor energy during MOSFET turn-off. Use Value: 125A IFSM withstands lightning-induced surges; RoHS/halogen-free compliance meets IEC 61215 and UL 1741 requirements. | Use Scenario: Input-stage rectifier in 1U server PSU maintaining 12V output during AC dropout. IC Role / Device Role / Timing Role: Primary-side bridge rectifier feeding bulk capacitor bank in active PFC front-end. Use Value: Low 1.3V VF reduces conduction loss during hold-up time, extending backup duration by ~8% vs. standard recovery diodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH3L06S | 600V VRRM, 3A IF, 200ns trr, TO-220AC package | Higher thermal mass but requires mounting hardware; not axial-leaded | Preferred where board-level heat spreading is available and manual assembly is acceptable. |
| ON Semi MUR3060CT | 600V VRRM, dual common-cathode configuration, 35ns trr, TO-220AB | Ultra-fast recovery but dual-diode layout increases footprint; no AEC-Q101 qualification | Used when lowest possible switching loss is prioritized over automotive compliance or axial form factor. |
Compared with STTH3L06S and MUR3060CT, the FR305GH uniquely combines AEC-Q101 qualification, DO-201AD axial packaging, and balanced 250ns trr/1.3V VF - making it optimal for cost-sensitive, high-volume automotive and industrial SMPS where reliability and through-hole compatibility are mandatory.
Availability
FR305GH is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial switching inverters, and solar microinverter power stages requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for FR305GH 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 automotive, industrial, and consumer markets since 1979.
The FR30xG series is part of TSC's AEC-Q101-qualified rectifier portfolio, engineered specifically for high-reliability power conversion in harsh-environment applications including engine control units and battery management systems.
FAQ
What is the peak reverse voltage rating for FR305GH?
The FR305GH has a repetitive peak reverse voltage (VRRM) rating of 600V. This value is confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version H2105), and defines the maximum DC or peak AC reverse voltage the device can block continuously without breakdown under specified thermal conditions.
Is FR305GH qualified for automotive applications?
Yes, FR305GH is explicitly AEC-Q101 qualified, as indicated by the "H" suffix in the ordering code and verified in the FEATURES section of the Taiwan Semiconductor datasheet. This qualification covers stress tests including high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing - confirming suitability for under-hood and chassis-mounted automotive electronics.
What is the reverse recovery time (trr) of FR305GH and how is it measured?
The FR305GH has a reverse recovery time (trr) of 250ns, measured under conditions of IF = 0.5A, IR = 1.0A, and Irr = 0.25A, as specified in the ELECTRICAL SPECIFICATIONS table. This parameter reflects the time required for the diode to transition from forward conduction to reverse blocking state, directly influencing switching loss in high-frequency converters.
Does FR305GH have halogen-free and RoHS-compliant construction?
Yes, FR305GH is both RoHS compliant and halogen-free per IEC 61249-2-21, as stated in the FEATURES section of the Taiwan Semiconductor datasheet. The molding compound is UL 94V-0 rated, and the pure tin-plated leads meet J-STD-002 solderability standards - satisfying environmental and safety requirements for global electronics manufacturing.
What package type does FR305GH use and what are its mechanical identifiers?
FR305GH uses the DO-201AD axial-leaded package, identified by a cylindrical black epoxy body (~9.5mm long), 0.8mm diameter leads, and a visible cathode band. Polarity is marked by the cathode band, and the device weighs approximately 1.20g. This package is standardized for wave soldering and compatible with legacy rectifier footprints.
FR305GH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-201AD, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 600 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 250 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 600 V
- Capacitance @ Vr, F:
- 30pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201AD
- Operating Temperature - Junction:
- -55°C ~ 150°C
FR305GH FAQ
1.How can I place an order for FR305GH through Aetrix?
Please submit a Request for Quotation (RFQ) for FR305GH 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 FR305GH reliable?
The price and inventory of FR305GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FR305GH is usually 5 days.
3.What payment methods are accepted for FR305GH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FR305GH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FR305GH?
FR305GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FR305GH 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 FR305GH?
For technical support, including FR305GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FR305GH requirements.
6.How does Aetrix verify that FR305GH is sourced from the original manufacturer or authorized distributors?
All FR305GH 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 FR305GH meets industry standards.
7.What is the process for return or replacement of FR305GH?
All FR305GH units undergo pre-shipment inspection (PSI). If there is an issue with FR305GH, 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 FR305GH part is unused and in its original packaging.
Return procedure for FR305GH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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