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Taiwan Semiconductor Corporation FR304GH
- Part No.:
- FR304GH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
FR304GH.pdf
- Description:
- 150NS, 3A, 400V, FAST RECOVERY R
- Quantity:
- Payment:
- Shipping:
Inventory:3,750
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Product details
Overview
FR304GH from Taiwan Semiconductor is a 3A, 400V fast recovery rectifier diode in DO-201AD package, featuring 150 ns reverse recovery time, 1.3 V forward voltage at 3 A, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the FR304GH datasheet, FR304GH pinout, FR304GH application, or FR304GH equivalent, key selection criteria include repetitive peak reverse voltage (400 V), surge current capability (125 A), thermal resistance (35 °C/W), junction temperature range (−55 to +150 °C), and RoHS/halogen-free compliance.
Technical Context
This single-die, unidirectional fast recovery rectifier operates with low conduction loss and controlled switching behavior, optimized for high-frequency switching power supplies where rapid turn-off minimizes switching losses and EMI generation.
Its 150 ns trr, 30 pF junction capacitance at 4 V, and 5 µA reverse leakage at 25 °C support stable performance in DC–DC converters and SMPS topologies requiring efficient unidirectional current flow under repetitive 8.3 ms surge conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - maximum repetitive reverse blocking voltage before breakdown |
| IF | 3 A - continuous average forward current rating at case temperature ≤ 75 °C |
| IFSM | 125 A - non-repetitive surge current handling for 8.3 ms half-sine waveform |
| trr | 150 ns - time to recover from forward conduction to high-impedance reverse state |
| VF | 1.3 V @ 3 A, 25 °C - forward voltage drop determining conduction loss and thermal load |
| RθJA | 35 °C/W - junction-to-ambient thermal resistance defining heatsinking requirements |
| TJ max | +150 °C - maximum allowable junction temperature for reliable long-term operation |
Pinout & Package
DO-201AD axial-leaded package with cathode indicated by band; leads are pure tin-plated, solderable per J-STD-002, UL 94V-0 molded compound, and JESD 201 Class 2 whisker compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of circuit; accepts forward bias relative to cathode |
| Cathode | Forward current exit point | Marked with band; connected to higher-potential side; blocks reverse voltage up to 400 V |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS power stages |
| Low VF (1.3 V) | Reduces conduction loss and self-heating in high-duty-cycle rectification paths |
| Fast trr (150 ns) | Enables operation in 100+ kHz switching converters without excessive switching loss or ringing |
| High IFSM (125 A) | Withstands inrush and transient overloads common in industrial power-up sequences |
| Halogen-free & RoHS | Complies with IEC 61249-2-21 and global environmental directives for end-of-life processing |
Applications
| Automotive DC–DC Converters | Industrial SMPS Rectification |
|---|---|
Use Scenario: High-efficiency 12 V to 5 V/3.3 V buck-derived converters in engine control units and infotainment systems. IC Role / Device Role / Timing Role: Primary output rectifier handling continuous 3 A load with minimal voltage drop and thermal rise. Use Value: AEC-Q101 qualification ensures operational stability across −40 to +125 °C ambient and vibration-prone environments. | Use Scenario: Secondary-side rectification in 200–500 kHz flyback and forward converters powering PLC I/O modules. IC Role / Device Role / Timing Role: Fast-recovery unidirectional switch enabling high-frequency energy transfer with low reverse recovery charge. Use Value: 150 ns trr and 35 °C/W RθJA reduce switching loss and simplify thermal design versus standard recovery diodes. |
| AC–DC Adapter Output Stage | Renewable Energy Inverter Auxiliary Supply |
Use Scenario: Output rectification in universal-input 65 W laptop adapters operating at 65–130 kHz. IC Role / Device Role / Timing Role: Conducts average 3 A forward current while blocking 400 V reverse transients during transformer reset. Use Value: 1.3 V VF improves full-load efficiency by ~0.8% compared to 1.5 V alternatives at same current. | Use Scenario: Bias supply rectification in solar microinverter gate driver circuits requiring high reliability. IC Role / Device Role / Timing Role: Provides isolated auxiliary power with robust surge immunity during grid fault events. Use Value: 125 A IFSM withstands lightning-induced surges on AC input lines coupled through transformer parasitics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH3L04S | Same 400 V VRRM, 3 A IF, but 120 ns trr; TO-220AC package, not AEC-Q101 qualified | Higher-frequency SMPS where faster recovery is critical; unsuitable for automotive due to lack of qualification | Select when board space allows TO-220 mounting and AEC-Q101 is not required |
| ON Semi MUR3040CT | Dual common-cathode configuration, 400 V, 3 A per diode, 60 ns trr; TO-220AB package; no AEC-Q101 | Used in dual-output or synchronous rectification schemes; requires different layout and thermal management | Choose only if dual-diode topology is needed and automotive qualification is waived |
Compared with STTH3L04S and MUR3040CT, FR304GH uniquely combines AEC-Q101 qualification, DO-201AD form factor, and balanced 150 ns trr/1.3 V VF for cost-sensitive, thermally constrained automotive and industrial rectification where regulatory compliance and leaded package compatibility are mandatory.
Availability
FR304GH is available at Aetrix Electronics and suitable for automotive DC–DC converters, industrial switching mode power supplies, and renewable energy auxiliary power designs requiring stable component supply and long-term lifecycle assurance.
Supply support for FR304GH 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 was developed specifically for high-reliability rectification in automotive power systems and industrial switching supplies, emphasizing AEC-Q101 compliance, low-loss operation, and robust surge tolerance.
FAQ
What is the peak repetitive reverse voltage rating for FR304GH?
The FR304GH has a peak repetitive reverse voltage (VRRM) rating of 400 V. This means it can reliably block up to 400 V of reverse-biased voltage in continuous operation without breakdown. The value is fixed for the FR304GH variant and is confirmed in the absolute maximum ratings table of the official Taiwan Semiconductor datasheet (Version H2105). Exceeding this voltage risks irreversible avalanche failure.
Is FR304GH qualified for automotive applications?
Yes, FR304GH is AEC-Q101 qualified, as explicitly stated in the ordering code note ("H" suffix denotes AEC-Q101 qualification) and features list. This qualification validates its reliability under automotive temperature cycling, mechanical shock, and humidity testing. FR304GH is suitable for under-hood and cabin applications where junction temperatures reach up to +150 °C and long-term field reliability is critical.
What is the forward voltage drop of FR304GH at rated current?
The forward voltage (VF) of FR304GH is 1.3 V maximum at 3 A forward current and 25 °C junction temperature. This value reflects worst-case conduction loss under standard test conditions (pulse width = 0.3 ms). At elevated temperatures or higher currents, VF decreases slightly due to semiconductor physics, but system-level thermal design must account for the 1.3 V worst-case for loss budgeting.
What package type does FR304GH use, and what are its key mechanical properties?
FR304GH uses the DO-201AD axial-leaded package. Key mechanical properties include UL 94V-0 flammability-rated molding compound, pure tin-plated leads compliant with J-STD-002 solderability, JESD 201 Class 2 whisker resistance, and cathode polarity marked by a visible band. Its approximate weight is 1.20 g, and it supports standard through-hole reflow or wave soldering processes.
How does the reverse recovery time of FR304GH compare to other members of the FR30xG family?
FR304GH has a reverse recovery time (trr) of 150 ns, matching FR301G, FR302G, and FR303G. It is faster than FR305G (250 ns) and significantly faster than FR306G/FR307G (500 ns). This graded trr progression correlates with increasing VRRM ratings-higher-voltage variants trade speed for blocking capability. For 400 V applications demanding fast switching, FR304GH offers optimal balance.
FR304GH 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):
- 400 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):
- 150 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 400 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
FR304GH FAQ
1.How can I place an order for FR304GH through Aetrix?
Please submit a Request for Quotation (RFQ) for FR304GH 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 FR304GH reliable?
The price and inventory of FR304GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FR304GH is usually 5 days.
3.What payment methods are accepted for FR304GH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FR304GH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FR304GH?
FR304GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FR304GH 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 FR304GH?
For technical support, including FR304GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FR304GH requirements.
6.How does Aetrix verify that FR304GH is sourced from the original manufacturer or authorized distributors?
All FR304GH 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 FR304GH meets industry standards.
7.What is the process for return or replacement of FR304GH?
All FR304GH units undergo pre-shipment inspection (PSI). If there is an issue with FR304GH, 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 FR304GH part is unused and in its original packaging.
Return procedure for FR304GH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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