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Taiwan Semiconductor Corporation FR157GH
- Part No.:
- FR157GH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
FR157GH.pdf
- Description:
- DIODE GEN PURP 1.5A DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,960
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Product details
Overview
FR157GH from Taiwan Semiconductor is a 1.5A, 1000V fast recovery rectifier diode in DO-204AC (DO-15) package, featuring 500 ns reverse recovery time, 1.3 V max forward voltage at 1.5 A, and AEC-Q101 qualification for automotive-grade reliability. It serves as the primary output rectifier in high-voltage DC-DC converters and switching inverters.
For engineers reviewing the FR157GH datasheet, FR157GH pinout, FR157GH application, or FR157GH equivalent, key selection criteria include peak reverse voltage rating (1000 V), surge current capability (50 A), thermal resistance (60 °C/W), junction temperature range (–55 to +150 °C), and AEC-Q101 qualification status.
Technical Context
This single-die, glass-passivated fast recovery rectifier uses a planar epitaxial structure optimized for low conduction loss and controlled reverse recovery behavior. Its 500 ns trr and 20 pF junction capacitance enable stable operation in 50–100 kHz switching power supplies with minimal switching noise and EMI generation.
The device operates across –55 °C to +150 °C junction temperature, with pure tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance. The cathode band marking provides unambiguous polarity identification on the DO-15 body.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1000 V - supports input rectification in 800 VAC line-fed industrial SMPS or 700 VDC bus systems |
| IF(AV) | 1.5 A - continuous average forward current rating at TA = 75 °C with adequate heatsinking |
| IFSM | 50 A - withstands single half-sine surge up to 8.3 ms, critical for cold-start inrush handling |
| VF(max) | 1.3 V @ 1.5 A, 25 °C - limits conduction loss to ≤1.95 W per device at full rated current |
| trr | 500 ns - enables use in fixed-frequency flyback and forward converters up to ~100 kHz without excessive switching loss |
| RθJA | 60 °C/W - requires minimum 0.5 cm² copper pad for safe operation at 1.5 A in open ambient |
| AEC-Q101 | Qualified - meets stress test requirements for automotive under-hood power conversion modules |
Pinout & Package
DO-204AC (DO-15) axial-leaded package with cathode indicated by a painted band on the body. Leads are pure tin-plated, solderable per J-STD-002, and meet UL 94V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Forward current entry point | Connected to transformer secondary or switch node; must handle 1.5 A continuous and 50 A surge |
| Cathode (banded end) | Forward current exit / reverse blocking terminal | Connected to output capacitor or filter choke; blocks 1000 V reverse potential during off-state |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Prevents moisture ingress and surface leakage, ensuring long-term stability in humid environments |
| AEC-Q101 qualification | Validated for automotive power modules requiring extended temperature cycling and mechanical shock resistance |
| Low VF (≤1.3 V) | Reduces conduction loss by ≥15% vs. standard recovery diodes at 1.5 A, improving system efficiency |
| High IFSM (50 A) | Eliminates need for parallel diodes in high-inrush applications such as LED driver startup or motor controller precharge |
| Halogen-free construction | Complies with IEC 61249-2-21, supporting RoHS-compliant PCB assembly and end-of-life recycling |
Applications
| Industrial DC-DC Converter | Automotive On-Board Charger (OBC) |
|---|---|
Use Scenario: 400 VDC–800 VDC isolated DC-DC stage converting battery voltage to 12 V auxiliary rail. IC Role / Device Role / Timing Role: Output rectifier in synchronous or diode-based LLC resonant converter. Use Value: 1000 V VRRM safely handles reflected transients from 800 V battery systems; 500 ns trr minimizes switching loss at 100–150 kHz operation. | Use Scenario: Secondary-side rectification in bidirectional OBC AC/DC front-end with 650 V SiC MOSFETs. IC Role / Device Role / Timing Role: Fast recovery rectifier in voltage-doubler or full-wave bridge configuration. Use Value: AEC-Q101 qualification ensures reliability over 15-year vehicle lifetime; 150 °C TJ max supports compact heatsink design. |
| Telecom Power Supply | Renewable Energy Inverter |
Use Scenario: 48 V output rectification in 3 kW telecom rectifier with 380 VDC intermediate bus. IC Role / Device Role / Timing Role: Primary output rectifier in phase-shifted full-bridge topology. Use Value: 60 °C/W RθJA enables direct mounting to chassis without dedicated heatsink; 5 µA IR at 25 °C reduces standby leakage. | Use Scenario: DC link rectification in string-level solar microinverters interfacing 600–1000 V PV arrays. IC Role / Device Role / Timing Role: High-voltage freewheeling and clamp rectifier in H-bridge inverter stage. Use Value: 1000 V rating matches EN 50530 maximum system voltage; DO-15 form factor allows automated placement on high-density PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1L06S | 1 A, 600 V, 75 ns trr, TO-220AC package | Lower voltage rating and faster recovery, but higher VF (1.7 V) and larger footprint | Preferred where ultra-fast recovery is prioritized over voltage margin and board space is not constrained |
| ON Semi MUR160E | 1.5 A, 600 V, 75 ns trr, DO-15 package, no AEC-Q101 | Same package and current rating, but lacks automotive qualification and has lower VRRM | Acceptable for industrial non-automotive designs requiring faster trr and cost sensitivity |
Compared with STTH1L06S and MUR160E, FR157GH uniquely combines 1000 V blocking, AEC-Q101 qualification, and DO-15 compatibility-making it the only option among the three suitable for 800 V+ automotive DC-DC and high-reliability industrial inverters.
Availability
FR157GH is available at Aetrix Electronics and suitable for automotive on-board chargers, industrial DC-DC converters, and renewable energy inverters requiring stable component supply, long-lifecycle support, and AEC-Q101 compliance.
Supply support for FR157GH 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 industrial, automotive, and consumer markets since 1979.
The FR15xG series was developed specifically for high-efficiency, high-reliability power conversion in automotive and industrial applications-emphasizing robustness, low-loss operation, and standardized DO-15 packaging for automated manufacturing.
FAQ
What is the peak repetitive reverse voltage rating of FR157GH?
The FR157GH has a peak repetitive reverse voltage (VRRM) rating of 1000 V. This value is confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version I2105). The 1000 V rating allows FR157GH to be used in high-voltage DC-DC stages fed from 700 VDC bus systems or 500 VAC line inputs after rectification. It is the highest voltage grade in the FR15xG family.
Is FR157GH qualified to AEC-Q101 standards?
Yes, FR157GH is explicitly AEC-Q101 qualified, as indicated by the "H" suffix in its ordering code and confirmed in the FEATURES section of the datasheet. This qualification covers temperature cycling, mechanical shock, humidity testing, and other stress tests required for automotive under-hood and powertrain applications. FR157GH is suitable for use in automotive on-board chargers and DC-DC converters where component reliability is mission-critical.
What is the reverse recovery time (trr) of FR157GH and how is it measured?
The reverse recovery time (trr) of FR157GH is 500 ns, measured under conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A, per the Electrical Specifications table. This value applies specifically to FR156G and FR157G variants and reflects the time required for the diode to transition from forward conduction to reverse blocking. The 500 ns trr balances speed and softness for reduced EMI in medium-frequency switching power supplies.
What package type does FR157GH use and what are its mechanical features?
FR157GH uses the DO-204AC (DO-15) axial-leaded package. Key mechanical features include glass passivation for junction protection, pure tin-plated leads compliant with J-STD-002 solderability, UL 94V-0 rated molding compound, cathode polarity marked by a visible band, and a typical weight of 0.400 g. The DO-15 outline dimensions are standardized for wave and reflow soldering in high-volume manufacturing.
How does the forward voltage (VF) of FR157GH compare to similar fast recovery diodes?
FR157GH has a maximum forward voltage (VF) of 1.3 V at 1.5 A and 25 °C, which is lower than many competing 1000 V fast recovery diodes (e.g., MUR160E: 1.7 V). This lower VF directly reduces conduction losses-by approximately 0.6 W per device at full load-improving overall system efficiency and easing thermal management in space-constrained designs using FR157GH.
FR157GH 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):
- 1000 V
- Current - Average Rectified (Io):
- 1.5A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 1.5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 500 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 1000 V
- Capacitance @ Vr, F:
- 20pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
- Operating Temperature - Junction:
- -55°C ~ 150°C
FR157GH FAQ
1.How can I place an order for FR157GH through Aetrix?
Please submit a Request for Quotation (RFQ) for FR157GH 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 FR157GH reliable?
The price and inventory of FR157GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FR157GH is usually 5 days.
3.What payment methods are accepted for FR157GH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FR157GH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FR157GH?
FR157GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FR157GH 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 FR157GH?
For technical support, including FR157GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FR157GH requirements.
6.How does Aetrix verify that FR157GH is sourced from the original manufacturer or authorized distributors?
All FR157GH 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 FR157GH meets industry standards.
7.What is the process for return or replacement of FR157GH?
All FR157GH units undergo pre-shipment inspection (PSI). If there is an issue with FR157GH, 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 FR157GH part is unused and in its original packaging.
Return procedure for FR157GH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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