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Vishay General Semiconductor - Diodes Division VS-8TQ080GSPBF
- Part No.:
- VS-8TQ080GSPBF
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Single Diodes
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
VS-8TQ080GSPBF.pdf
- Description:
- DIODE SCHOTTKY 80V 8A TO263AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,362
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Product details
Overview
VS-8TQ080GSPBF from Vishay Semiconductors is a single-die Schottky rectifier in TO-220AC package, rated for 8 A average forward current and 80 V maximum DC reverse voltage, with 0.58 V forward voltage at 8 A and 125 °C junction temperature. It delivers low conduction loss and high-frequency switching performance in power supply freewheeling and reverse battery protection circuits.
For engineers reviewing the VS-8TQ080GSPBF datasheet, VS-8TQ080GSPBF pinout, VS-8TQ080GSPBF application, or VS-8TQ080GSPBF equivalent, this page provides verified electrical parameters, thermal resistance (2.0 °C/W), avalanche energy rating (7.5 mJ), RoHS-compliant packaging, and JEDEC-JESD47-qualified reliability data - all critical for industrial power converter design and qualification.
Technical Context
This Schottky rectifier uses proprietary barrier technology to achieve stable low-leakage operation up to 175 °C junction temperature, enabling use in thermally constrained environments like enclosed DC/DC converters and automotive under-hood power modules. Its 10,000 V/µs dV/dt rating supports fast-switching topologies including synchronous rectification and high-frequency flyback designs.
The device features guard ring construction for enhanced ruggedness and long-term reliability under repetitive surge stress, with 850 A non-repetitive peak surge current capability (5 µs sine) and 0.50 A repetitive avalanche current rating. Its 500 pF junction capacitance at 5 V and 8 nH typical series inductance support efficient high-speed switching behavior without excessive ringing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF(AV) | 8 A average forward current at TC = 157 °C (rectangular waveform); enables compact heatsink sizing in 50–100 W SMPS designs |
| VRRM / VR | 80 V maximum DC reverse voltage; suitable for 48 V input systems with 20 % derating margin |
| VF @ 8 A, 125 °C | 0.58 V forward voltage drop; reduces conduction loss to ~4.6 W per diode in continuous conduction mode |
| IRM max. | 7 mA reverse leakage at 125 °C; ensures minimal standby power loss in battery-backed systems |
| RthJC | 2.0 °C/W junction-to-case thermal resistance; allows direct mounting to heatsink without thermal interface pad compromise |
| EAS | 7.5 mJ non-repetitive avalanche energy (TJ = 25 °C, IAS = 0.50 A, L = 60 mH); withstands unclamped inductive turn-off transients |
| TJ max. | 175 °C maximum junction temperature; supports operation in sealed enclosures or high-ambient industrial environments |
Pinout & Package
TO-220AC package with isolated metal tab (cathode-connected base). Mounting surface requires thermal grease and torque of 6–12 kgf·cm (5–10 lbf·in). Approximate weight: 2 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Main cathode connection; electrically tied to metal tab; must be isolated from chassis unless circuit ground reference permits |
| 2 | Cathode | Second cathode lead; paralleled internally with Pin 1; used for low-inductance PCB routing or dual-point heatsinking |
| 3 | Anode | Single anode terminal; carries full forward current; layout must minimize trace inductance to reduce switching overshoot |
Key Features
| Feature | Design Value |
|---|---|
| 175 °C TJ operation | Enables reliable deployment in high-ambient environments (e.g., industrial motor drives, solar inverters) without derating |
| Guard ring construction | Improves edge breakdown immunity and extends lifetime under repeated surge and thermal cycling stress |
| High-purity epoxy encapsulation | Provides enhanced mechanical strength and moisture resistance (IPC/JEDEC MSL 1 equivalent) for harsh-environment assembly |
| JEDEC-JESD47 qualification | Validated for reliability across temperature cycling, HAST, and HTOL - required for automotive and industrial BOMs |
| RoHS-compliant Pb-free (PbF) | Meets EU Directive 2011/65/EU; compatible with standard SnAgCu reflow profiles and no-lead manufacturing lines |
Applications
| Switching Power Supplies | Reverse Battery Protection |
|---|---|
|
Use Scenario: Secondary-side rectification in 48 V input, 12 V output flyback or forward converters operating at 100–500 kHz. IC Role / Device Role / Timing Role: Freewheeling Schottky rectifier replacing slower PN diodes to reduce conduction loss and improve efficiency. Use Value: 0.58 V VF at 125 °C lowers power dissipation by >30 % vs. comparable 100 V Si diodes, enabling smaller heatsinks and higher power density. |
Use Scenario: Polarity protection in 24–48 V vehicle-mounted electronics (telematics, ADAS ECUs) exposed to jump-start surges. IC Role / Device Role / Timing Role: Low-VF reverse-blocking diode placed in series with battery input to prevent damage during reverse connection. Use Value: 8 A IF(AV) and 850 A IFSM handle cold-cranking surges; 7 mA IRM at 125 °C minimizes quiescent drain in always-on modules. |
| DC/DC Converters | Freewheeling Diodes |
|
Use Scenario: Output rectification in isolated half-bridge or phase-shifted full-bridge DC/DC modules for telecom and server PSUs. IC Role / Device Role / Timing Role: High-frequency synchronous rectifier alternative where gate drive complexity is prohibitive. Use Value: 500 pF CT and 8 nH LS limit switching losses and EMI generation; 10,000 V/µs dV/dt prevents spurious turn-on in high-dV/dt node layouts. |
Use Scenario: Inductive load snubbing in industrial PLC output stages driving solenoids, relays, and DC motors. IC Role / Device Role / Timing Role: Fast-recovery freewheel path for stored inductive energy during MOSFET turn-off. Use Value: 7.5 mJ EAS rating absorbs unclamped inductive spikes without failure; 175 °C TJ rating sustains operation during repeated short-circuit events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STPS8M100S | Same 8 A / 100 V rating but TO-220AB package (non-isolated tab); RthJC = 2.5 °C/W; VF = 0.62 V @ 8 A, 125 °C | Requires insulating washer for heatsink mounting; slightly higher conduction loss; lower surge rating (750 A) | Select when cost sensitivity outweighs thermal performance and isolation requirements |
| ON Semiconductor MBR880CT | 8 A dual common-cathode Schottky in TO-220AB; VF = 0.75 V @ 8 A, 25 °C; no 125 °C VF spec provided; TJ max = 150 °C | Not single-die; lacks guard ring; lower max junction temperature limits high-ambient use | Select only for non-critical commercial applications where 175 °C operation and robustness are not required |
Compared with STPS8M100S and MBR880CT, the VS-8TQ080GSPBF offers superior thermal performance (2.0 °C/W), guaranteed 125 °C VF spec, 175 °C TJ rating, and guard ring-enhanced ruggedness - making it the preferred choice for industrial and automotive-grade power conversion where reliability and thermal headroom are critical.
Availability
VS-8TQ080GSPBF is available at Aetrix Electronics and suitable for switching power supplies, reverse battery protection circuits, and industrial DC/DC converters requiring stable component supply, long-lifecycle availability, and JEDEC-qualified reliability.
Supply support for VS-8TQ080GSPBF 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
Vishay Semiconductors is a global leader in discrete semiconductors, specializing in high-reliability diodes, MOSFETs, and optoelectronics for industrial, automotive, and computing markets.
The VS-8TQ080GSPBF belongs to Vishay's high-temperature Schottky rectifier product line, engineered specifically for demanding power conversion applications where low VF, high TJ, and ruggedness are mandatory - such as telecom rectifiers, solar microinverters, and automotive body control modules.
FAQ
What is the maximum junction temperature rating for VS-8TQ080GSPBF?
The VS-8TQ080GSPBF is rated for a maximum junction temperature (TJ max.) of 175 °C, validated per JEDEC-JESD47 qualification standards. This enables operation in high-ambient environments such as enclosed power supplies or under-hood automotive electronics where thermal management is constrained. The 175 °C rating is supported by low RthJC (2.0 °C/W) and stable VF characteristics up to that temperature.
Is VS-8TQ080GSPBF RoHS-compliant and halogen-free?
Yes, VS-8TQ080GSPBF is RoHS-compliant (lead-free, per Directive 2011/65/EU) and carries the "PbF" suffix indicating compliance. However, it is not halogen-free - that designation applies only to the "-N3" variant (e.g., VS-8TQ080G-N3). The VS-8TQ080GSPBF uses high-purity epoxy encapsulation meeting moisture resistance and mechanical strength requirements without halogen-free certification.
What is the forward voltage drop of VS-8TQ080GSPBF at 8 A and 125 °C?
The forward voltage drop (VF) of VS-8TQ080GSPBF is specified as 0.58 V at 8 A and TJ = 125 °C. This value is measured under DC or rectangular waveform conditions and reflects real-world conduction loss in thermally stressed operation. At 25 °C, VF rises to 0.72 V at 8 A, confirming the device's positive temperature coefficient for safe parallel operation.
Does VS-8TQ080GSPBF have avalanche energy rating?
Yes, VS-8TQ080GSPBF has a non-repetitive avalanche energy rating (EAS) of 7.5 mJ, tested at TJ = 25 °C with IAS = 0.50 A and L = 60 mH. This rating confirms its ability to safely absorb inductive turn-off energy in unclamped circuits - a key requirement for freewheeling and reverse protection applications where transient overvoltage may occur.
What is the pin configuration and thermal pad connection for VS-8TQ080GSPBF?
VS-8TQ080GSPBF uses a TO-220AC package with Pins 1 and 2 as cathode (electrically tied to the isolated metal tab), and Pin 3 as anode. The metal tab is cathode-connected and thermally conductive, requiring mechanical mounting to a heatsink with thermal grease and torque of 6–12 kgf·cm. Electrical isolation of the tab from chassis ground is mandatory unless the cathode node is system ground.
VS-8TQ080GSPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- -
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Tube
- Product Status:
- Obsolete
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 80 V
- Current - Average Rectified (Io):
- 8A
- Voltage - Forward (Vf) (Max) @ If:
- 720 mV @ 8 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- -
- Capacitance @ Vr, F:
- 500pF @ 5V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263AB (D2PAK)
- Operating Temperature - Junction:
- -65°C ~ 180°C
VS-8TQ080GSPBF FAQ
1.How can I place an order for VS-8TQ080GSPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for VS-8TQ080GSPBF 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 VS-8TQ080GSPBF reliable?
The price and inventory of VS-8TQ080GSPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VS-8TQ080GSPBF is usually 5 days.
3.What payment methods are accepted for VS-8TQ080GSPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VS-8TQ080GSPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VS-8TQ080GSPBF?
VS-8TQ080GSPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VS-8TQ080GSPBF 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 VS-8TQ080GSPBF?
For technical support, including VS-8TQ080GSPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VS-8TQ080GSPBF requirements.
6.How does Aetrix verify that VS-8TQ080GSPBF is sourced from the original manufacturer or authorized distributors?
All VS-8TQ080GSPBF 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 VS-8TQ080GSPBF meets industry standards.
7.What is the process for return or replacement of VS-8TQ080GSPBF?
All VS-8TQ080GSPBF units undergo pre-shipment inspection (PSI). If there is an issue with VS-8TQ080GSPBF, 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 VS-8TQ080GSPBF part is unused and in its original packaging.
Return procedure for VS-8TQ080GSPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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