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Taiwan Semiconductor Corporation FR104GH
- Part No.:
- FR104GH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
FR104GH.pdf
- Description:
- 150NS, 1A, 400V, FAST RECOVERY R
- Quantity:
- Payment:
- Shipping:
Inventory:10,000
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Product details
Overview
FR104GH from Taiwan Semiconductor is a 1A, 400V fast recovery rectifier diode in DO-204AL (DO-41) package, featuring 150 ns reverse recovery time, 1.3 V forward voltage at 1 A, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the FR104GH datasheet, FR104GH pinout, FR104GH application, or FR104GH equivalent, key selection criteria include its 400 V repetitive peak reverse voltage, 30 A surge current capability, junction-to-ambient thermal resistance of 70 °C/W, and compliance with RoHS and halogen-free standards per IEC 61249-2-21.
Technical Context
This single-die, glass-passivated fast recovery rectifier supports high-efficiency switching in DC-DC converters and SMPS by minimizing reverse recovery loss. Its 150 ns trr and low VF reduce conduction and switching losses under 1 A continuous forward current.
The device operates across –55 °C to +150 °C junction temperature range, with 5 µA max reverse leakage at 25 °C and 100 µA at 125 °C, enabling stable performance in thermally demanding automotive and industrial power supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Maximum repetitive reverse blocking voltage before breakdown |
| IF | 1 A - Continuous average forward current rating at TA = 75 °C |
| IFSM | 30 A - Non-repetitive surge current handling (8.3 ms half-sine) |
| trr | 150 ns - Fast reverse recovery time reduces switching loss in high-frequency converters |
| VF @ 1 A | 1.3 V - Low forward voltage drop improves system efficiency and thermal margin |
| TJ max | +150 °C - Enables operation in under-hood automotive environments |
| RθJA | 70 °C/W - Thermal resistance defines heatsink requirements for ambient-limited derating |
Pinout & Package
Package: DO-204AL (DO-41), axial-leaded, glass-passivated, cathode indicated by band. Weight: 0.340 g. Leads are pure tin-plated, solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., switch node in flyback secondary) |
| Cathode | Forward current exit / reverse blocking terminal | Marked with band; ties to output rail or filter capacitor positive |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive power electronics requiring stress-tested reliability |
| Glass passivated junction | Enhances moisture resistance and long-term stability vs. epoxy-passivated alternatives |
| Low VF (1.3 V @ 1 A) | Reduces conduction loss by ~15% compared to standard 1N400x series at same current |
| 150 ns trr | Enables use up to ~500 kHz switching frequency without excessive EMI or loss penalty |
| Halogen-free & RoHS | Meets IEC 61249-2-21 and global environmental compliance mandates |
Applications
| Automotive DC-DC Converters | Industrial Switch-Mode Power Supplies |
|---|---|
Use Scenario: 12 V to 5 V/3.3 V buck converter in engine control unit (ECU) with 250 kHz switching. IC Role / Device Role / Timing Role: Output rectifier delivering regulated low-voltage rails with minimal heat generation. Use Value: AEC-Q101 qualification and 150 °C TJ max ensure uninterrupted operation in high-temperature under-hood environments. | Use Scenario: Secondary-side rectification in 48 V input telecom power supply operating at 300 kHz. IC Role / Device Role / Timing Role: Fast-recovery diode replacing slower 1N540x series to reduce switching loss and improve efficiency. Use Value: 150 ns trr and 1.3 V VF directly lower total power loss by >0.5 W per diode versus legacy alternatives. |
| LED Driver Power Stages | AC-DC Adapter Outputs |
Use Scenario: Constant-current LED driver for commercial lighting using active PFC + flyback topology. IC Role / Device Role / Timing Role: Secondary-side rectifier handling pulsed 1 A output with tight thermal constraints. Use Value: 70 °C/W RθJA and glass passivation support reliable 50,000-hour lifetime in enclosed fixtures. | Use Scenario: 12 V/2 A output stage of universal-input wall adapter with 65 kHz PWM. IC Role / Device Role / Timing Role: Output freewheeling diode in discontinuous conduction mode (DCM) flyback. Use Value: Low IR (5 µA @ 25 °C) prevents standby power exceedance; DO-41 footprint enables cost-effective through-hole assembly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R04 | Same 1 A / 400 V rating; trr = 100 ns (faster), VF = 1.25 V; TO-220AC package | Requires PCB layout change; better suited for higher-power heatsinked designs | Select when lower trr and VF justify SMT or TO-220 thermal management |
| ON Semi MUR1040 | 1 A / 400 V; trr = 50 ns; VF = 1.25 V; DO-41 package; AEC-Q101 not specified | No automotive qualification; tighter trr spec but unverified for harsh-environment use | Choose for cost-sensitive industrial SMPS where AEC-Q101 is not required |
Compared with STTH1R04 and MUR1040, FR104GH uniquely balances AEC-Q101 compliance, DO-41 through-hole compatibility, and 150 ns trr-making it optimal for space-constrained automotive modules needing proven reliability without redesign.
Availability
FR104GH is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial switch-mode power supplies, and LED driver power stages requiring stable component supply and long-term lifecycle assurance.
Supply support for FR104GH 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 FR101G–FR107G family delivers AEC-Q101-qualified fast recovery rectifiers optimized for high-efficiency, high-reliability power conversion in automotive and industrial systems where thermal robustness and long-term stability are critical.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for FR104GH?
The FR104GH has a VRRM rating of 400 V, meaning it can reliably block up to 400 V of reverse voltage in repetitive operation without breakdown. This value is confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version H2104) and aligns with the "104" in the part number indicating 400 V. Exceeding this voltage risks irreversible junction failure.
Is FR104GH AEC-Q101 qualified, and what does that mean for design use?
Yes, FR104GH is AEC-Q101 qualified, as explicitly stated in the FEATURES section and ordering code suffix "H". This certification validates its reliability under automotive-grade stress tests-including temperature cycling, humidity bias, and mechanical shock-making it suitable for under-hood and safety-critical power circuits where field failure is unacceptable.
What is the reverse recovery time (trr) of FR104GH, and how does it affect switching performance?
The FR104GH has a reverse recovery time of 150 ns under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A conditions. This fast trr minimizes switching loss and EMI generation in high-frequency converters (e.g., >200 kHz), directly improving efficiency and thermal performance compared to general-purpose rectifiers like 1N4007 (trr > 2 µs).
Does FR104GH have RoHS and halogen-free compliance, and where is this documented?
Yes, FR104GH is RoHS compliant and halogen-free per IEC 61249-2-21, as stated in the FEATURES section of the official datasheet. The "G" suffix denotes green compound, and the halogen-free status is verified via material declarations supporting environmental compliance for global electronics manufacturing.
What package type and lead finish does FR104GH use, and why does it matter for assembly?
FR104GH uses the DO-204AL (DO-41) axial package with pure tin-plated leads, solderable per J-STD-002. This ensures compatibility with standard wave and hand-soldering processes, eliminates lead-free assembly concerns, and meets JEDEC whisker resistance (Class 2), critical for long-life industrial and automotive PCBs exposed to thermal cycling.
FR104GH 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):
- 400 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 @ 400 V
- Capacitance @ Vr, F:
- 10pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
- Operating Temperature - Junction:
- -55°C ~ 150°C
FR104GH FAQ
1.How can I place an order for FR104GH through Aetrix?
Please submit a Request for Quotation (RFQ) for FR104GH 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 FR104GH reliable?
The price and inventory of FR104GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FR104GH is usually 5 days.
3.What payment methods are accepted for FR104GH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FR104GH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FR104GH?
FR104GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FR104GH 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 FR104GH?
For technical support, including FR104GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FR104GH requirements.
6.How does Aetrix verify that FR104GH is sourced from the original manufacturer or authorized distributors?
All FR104GH 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 FR104GH meets industry standards.
7.What is the process for return or replacement of FR104GH?
All FR104GH units undergo pre-shipment inspection (PSI). If there is an issue with FR104GH, 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 FR104GH part is unused and in its original packaging.
Return procedure for FR104GH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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