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Taiwan Semiconductor Corporation FR204G-T
- Part No.:
- FR204G-T
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
FR204G-T.pdf
- Description:
- 150NS, 2A, 400V, FAST RECOVERY R
- Quantity:
- Payment:
- Shipping:
Inventory:8,583
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Product details
Overview
FR204G-T from Taiwan Semiconductor is a fast recovery rectifier diode with 400 V repetitive peak reverse voltage (VRRM), 2 A average forward current (IF), and 150 ns reverse recovery time (trr) measured at IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A. It features glass passivated junction, low forward voltage (VF ≤ 1.3 V at 2 A), and DO-204AC (DO-15) package - used in DC-DC converters and switching-mode power supplies.
For engineers reviewing the FR204G-T datasheet, FR204G-T pinout, FR204G-T application, or FR204G-T equivalent, key selection criteria include VRRM = 400 V, trr = 150 ns, VF ≤ 1.3 V at 2 A, IFSM = 55 A surge rating, and DO-204AC mechanical compatibility for through-hole PCB layout and thermal derating above 70°C ambient.
Technical Context
The FR204G-T employs a single-die, planar epitaxial construction with glass passivation to ensure stable reverse leakage (IR ≤ 5 µA at 25°C, ≤ 100 µA at 125°C) and robust surge immunity. Its 150 ns trr enables high-frequency switching up to ~500 kHz in flyback and forward converters without excessive switching loss.
Thermal performance is defined by RθJA = 70°C/W in free-air, with maximum junction temperature of 150°C and storage range from –55°C to +150°C. The device uses pure tin-plated leads compliant with J-STD-002 and passes JESD 201 Class 1A whisker testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Maximum non-repetitive reverse voltage before breakdown; sets usable input voltage ceiling in AC-DC front-ends. |
| IF (AV) | 2 A - Continuous average forward current at TA = 70°C; defines steady-state conduction capability in output rectification. |
| trr | 150 ns - Measured under IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A; determines minimum practical switching frequency and snubber design in SMPS. |
| VF | ≤1.3 V at IF = 2 A, TJ = 25°C - Directly impacts conduction loss and thermal rise in high-duty-cycle operation. |
| IFSM | 55 A - Peak non-repetitive surge current (8.3 ms half-sine); supports cold-start and transient overload tolerance. |
| IR | ≤5 µA at VR = 400 V, TJ = 25°C - Low leakage preserves efficiency in high-impedance bias networks and standby circuits. |
Pinout & Package
Package: DO-204AC (DO-15), axial lead, glass-passivated silicon die, cathode indicated by band. Weight ≈ 0.400 g. UL 94V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Forward current entry point | Connected to lower-potential side (e.g., transformer secondary center-tap or switch node return) in half-wave or full-wave configurations. |
| Cathode (Lead 2, banded end) | Forward current exit / reverse blocking terminal | Connected to output capacitor positive rail; withstands 400 V reverse bias during off-state in buck-derived topologies. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable long-term reliability and moisture resistance without hermetic sealing - critical for industrial-grade power supplies. |
| Low VF (≤1.3 V @ 2 A) | Reduces conduction loss by >15% vs. standard recovery diodes, lowering heatsink requirements in 12–48 V output rails. |
| Fast trr = 150 ns | Minimizes reverse recovery charge (Qrr), enabling efficient operation in 200–500 kHz switching converters without added snubbers. |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive - required for CE-marked industrial and telecom equipment. |
Applications
| DC–DC Converters | Switching Mode Inverters |
|---|---|
Use Scenario: Secondary-side rectification in isolated 24 V → 5 V/3.3 V flyback converters powering microcontrollers and sensors. IC Role / Device Role / Timing Role: Fast recovery rectifier handling 2 A average output current with minimal voltage overshoot during turn-off. Use Value: 150 ns trr prevents cross-conduction losses in synchronous designs and reduces EMI generation near switching edges. | Use Scenario: Output stage rectification in 400 V DC bus inverters converting to 230 V AC for motor drives. IC Role / Device Role / Timing Role: High-voltage, medium-current freewheeling and commutation path in H-bridge leg configurations. Use Value: 400 V VRRM and 55 A IFSM support safe operation during inductive kickback and line transients. |
| AC–DC Adapters | Industrial Power Supplies |
Use Scenario: Output rectification in universal-input (90–264 VAC) 12 W adapters for IoT gateways and PoE injectors. IC Role / Device Role / Timing Role: Primary output rectifier operating at 65–100 kHz with low conduction loss and thermal stability. Use Value: ≤1.3 V VF at 2 A ensures <1.5 W conduction loss at full load, enabling compact enclosure design without forced air. | Use Scenario: Auxiliary supply rectification in programmable logic controller (PLC) power modules requiring >10-year field life. IC Role / Device Role / Timing Role: Reliable, low-leakage (IR ≤ 5 µA) rectifier in 24 V control rail generation from 48 V backplane. Use Value: Glass passivation and JESD 201 Class 1A whisker compliance ensure no latent failure under thermal cycling and humidity stress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH2R04 | VRRM = 400 V, trr = 35 ns (faster), VF = 1.3 V @ 2 A, DO-204AL (DO-41) package | Lower trr enables higher-frequency operation but requires re-layout due to different lead spacing and body dimensions. | Preferred where <100 ns trr is mandatory and board space allows DO-41 footprint. |
| ES2D | VRRM = 200 V, trr = 35 ns, VF = 0.95 V @ 2 A, SMD SMB package | Half the VRRM rating and surface-mount format limit use to low-line AC-DC or DC-DC only; not suitable for 400 V bus applications. | Select only for cost-sensitive, space-constrained designs with ≤200 V reverse stress and automated assembly requirements. |
Compared with STTH2R04 and ES2D, the FR204G-T offers optimal balance of 400 V rating, 150 ns trr, through-hole DO-15 compatibility, and proven thermal margin - making it ideal for legacy-compatible, high-reliability industrial power supplies where layout change is constrained.
Availability
FR204G-T is available at Aetrix Electronics and suitable for DC–DC converters, switching mode inverters, and industrial power supplies requiring stable component supply, long-lifecycle sourcing, and RoHS-compliant manufacturing.
Supply support for FR204G-T 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 power, automotive, and industrial markets since 1979.
The FR20xG-T series is part of TSC's fast recovery rectifier product line, engineered specifically for high-efficiency, high-reliability AC–DC and DC–DC conversion in industrial and telecom infrastructure equipment.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for FR204G-T?
The FR204G-T has a VRRM of 400 V, meaning it can block up to 400 V of reverse voltage repeatedly without breakdown. This value is fixed per the FR204G-T ordering code and confirmed in the Absolute Maximum Ratings table. Exceeding 400 V risks irreversible avalanche failure, so design margins should maintain ≤320 V reverse stress in worst-case transient conditions for FR204G-T.
What does the "G" suffix in FR204G-T signify?
The "G" in FR204G-T indicates green molding compound compliant with halogen-free standards per IEC 61249-2-21. It is not a grade or temperature variant - all FR20xG-T devices share this environmental specification. The "-T" denotes tape-and-reel packaging (3,500 units per reel), distinguishing it from the FR204G-T A0G ammo box variant. FR204G-T is fully RoHS compliant.
Is FR204G-T pin-compatible with other DO-204AC rectifiers like 1N4007?
Yes, FR204G-T uses the DO-204AC (DO-15) package with identical lead spacing (5.3 mm ±0.3 mm) and body dimensions as 1N4007, enabling direct mechanical replacement. However, FR204G-T is a fast recovery device (trr = 150 ns) versus 1N4007's 30 µs recovery - substituting FR204G-T improves efficiency in switching supplies but offers no benefit in 50/60 Hz linear transformers.
What is the reverse recovery time (trr) test condition for FR204G-T?
The FR204G-T trr of 150 ns is measured under strictly defined conditions: IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A, using the test circuit in Figure 6 of the datasheet. This differs from typical 1 A IF/1 A IR conditions used for other families. Designers must apply this specific condition when modeling switching loss or selecting snubbers for FR204G-T.
Does FR204G-T require derating at elevated ambient temperatures?
Yes, FR204G-T must be derated above 70°C ambient. Its IF rating drops linearly from 2 A at 70°C to 0 A at 150°C, per the Forward Current Derating Curve (Figure 1). At 100°C ambient, maximum continuous IF is ~1.3 A. Thermal design must account for RθJA = 70°C/W and ensure junction temperature stays ≤150°C under full load for FR204G-T.
FR204G-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-204AC, DO-15, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 400 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 150 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 400 V
- Capacitance @ Vr, F:
- 10pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
- Operating Temperature - Junction:
- -55°C ~ 150°C
FR204G-T FAQ
1.How can I place an order for FR204G-T through Aetrix?
Please submit a Request for Quotation (RFQ) for FR204G-T 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 FR204G-T reliable?
The price and inventory of FR204G-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FR204G-T is usually 5 days.
3.What payment methods are accepted for FR204G-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FR204G-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FR204G-T?
FR204G-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FR204G-T 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 FR204G-T?
For technical support, including FR204G-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FR204G-T requirements.
6.How does Aetrix verify that FR204G-T is sourced from the original manufacturer or authorized distributors?
All FR204G-T 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 FR204G-T meets industry standards.
7.What is the process for return or replacement of FR204G-T?
All FR204G-T units undergo pre-shipment inspection (PSI). If there is an issue with FR204G-T, 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 FR204G-T part is unused and in its original packaging.
Return procedure for FR204G-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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