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Vishay General Semiconductor - Diodes Division VS-8ETU04-1HM3
- Part No.:
- VS-8ETU04-1HM3
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Single Diodes
- Package:
- TO-262-3 Long Leads, I2PAK, TO-262AA
- Datasheet:
-
VS-8ETU04-1HM3.pdf
- Description:
- DIODE GEN PURP 400V 8A TO262-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,950
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Product details
Overview
VS-8ETU04-1HM3 from Vishay Semiconductors is an AEC-Q101 qualified ultrafast recovery rectifier in TO-262AA package, rated for 400 V repetitive peak reverse voltage and 8 A average forward current at TC = 155 °C, with typical reverse recovery time of 35 ns at IF = 1.0 A and dIF/dt = 50 A/μs - deployed as output rectifier in automotive-grade DC/DC converters.
For engineers reviewing the VS-8ETU04-1HM3 datasheet, VS-8ETU04-1HM3 pinout, VS-8ETU04-1HM3 application, or VS-8ETU04-1HM3 equivalent, key selection criteria include its 175 °C maximum junction temperature, low 0.94 V forward voltage at IF = 8 A and TJ = 150 °C, AEC-Q101 qualification, and TO-262AA mechanical compatibility with high-power thermal management requirements.
Technical Context
This device uses a planar structure with platinum-doped lifetime control to achieve optimized trade-off between forward voltage drop and ultrafast recovery performance. Its 35 ns typical trr and 60 nC typical Qrr at TJ = 25 °C enable minimal switching losses in hard-switched topologies.
The TO-262AA package provides 1.8 °C/W typical thermal resistance from junction to case, supporting high-current operation up to 8 A with proper heatsinking. It meets MSL level 1 per J-STD-020 and LF peak reflow of 260 °C, confirming suitability for lead-free SMT assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - blocks up to 400 V reverse voltage without breakdown, suitable for 350 V DC bus applications. |
| IF(AV) | 8 A at TC = 155 °C - delivers continuous 8 A forward current when case temperature is maintained at 155 °C. |
| VF | 0.94 V at IF = 8 A, TJ = 150 °C - reduces conduction loss to ~7.5 W per diode in high-current output stages. |
| trr | 35 ns typical at IF = 1.0 A, dIF/dt = 50 A/μs - enables >1 MHz switching in resonant or quasi-resonant SMPS designs. |
| TJ max | 175 °C - supports operation in under-hood automotive environments and high-ambient industrial settings. |
| RthJC | 1.8 °C/W typical - allows efficient heat transfer to heatsink, enabling compact thermal design with <14.4 W total dissipation margin. |
| Qrr | 60 nC typical at TJ = 25 °C - lowers EMI generation and snubber stress compared to standard fast recovery diodes. |
Pinout & Package
VS-8ETU04-1HM3 is housed in TO-262AA (also known as modified TO-262) package with 3 leads and isolated metal tab. The package features a thermally enhanced leadframe and is compatible with standard TO-220 footprint layouts while offering improved thermal performance over TO-220AB.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | Main anode connection for forward current path; electrically isolated from tab. |
| 2 | Cathode | Main cathode terminal; connected internally to metal tab for low-inductance return path. |
| 3 | Anode | Second anode terminal - confirms single-diode configuration with dual-anode marking convention per Vishay's TO-262 pinout diagram. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive power electronics including engine control units and ADAS power supplies. |
| Platinum-doped lifetime control | Enables precise trr and Qrr tuning without compromising VF or leakage, ensuring repeatable dynamic performance. |
| 175 °C TJ max | Permits operation in high-temperature zones such as near power inductors or in sealed enclosures without derating. |
| MSL Level 1 rating | Allows unlimited floor life and single-reflow processing at 260 °C peak, simplifying manufacturing flow. |
| Low IR at high TJ | 500 μA max reverse leakage at VR = 400 V and TJ = 150 °C - maintains efficiency in high-temp standby modes. |
Applications
| Automotive DC/DC Converters | Industrial UPS Output Stage |
|---|---|
Use Scenario: High-efficiency 12 V to 48 V bidirectional DC/DC converter in 48 V mild-hybrid vehicle architecture. IC Role / Device Role / Timing Role: Output rectifier handling 8 A continuous forward current during boost mode, operating at 200 kHz switching frequency. Use Value: 35 ns trr and 0.94 V VF minimize switching and conduction losses, improving system efficiency by ≥1.2% versus standard fast recovery diodes. |
Use Scenario: 400 V input, 24 V/20 A output offline UPS with active PFC front-end and synchronous rectified LLC stage. IC Role / Device Role / Timing Role: Freewheeling diode in secondary-side synchronous rectification circuit, clamping transformer leakage energy. Use Value: Low Qrr (60 nC typ.) reduces snubber dissipation and EMI, allowing smaller RC snubbers and lower filter component count. |
| Motor Drive Chopper Circuits | Telecom DC/DC Modules |
Use Scenario: 24 V brushed DC motor drive with PWM chopper control in factory automation equipment. IC Role / Device Role / Timing Role: Freewheeling diode across motor winding, conducting flyback current during MOSFET off-time at 20–50 kHz. Use Value: 175 °C TJ rating ensures reliability under sustained 8 A surge currents and ambient temperatures up to 85 °C. |
Use Scenario: Compact 48 V to 3.3 V intermediate bus converter in 1 RU telecom server shelf. IC Role / Device Role / Timing Role: Secondary-side ultrafast rectifier in forward converter topology, operating at 500 kHz with tight layout constraints. Use Value: TO-262AA package offers 1.8 °C/W RthJC - enables direct mounting to copper pour, eliminating need for external heatsink in space-constrained modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultrafast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH8R04DJF | Same 400 V / 8 A rating, but TO-220AC package; trr = 30 ns typ., VF = 0.92 V at 8 A, TJ max = 175 °C. | Lacks AEC-Q101 qualification; not validated for automotive vibration or temperature cycling. | Select when cost sensitivity outweighs automotive qualification needs and TO-220AC footprint is preferred. |
| IXYS MUR840E | TO-220AC package; trr = 45 ns typ., VF = 1.15 V at 8 A, TJ max = 175 °C; no AEC-Q101 or MSL-1 rating. | Higher conduction loss and slower recovery increase switching losses in >300 kHz designs. | Choose only for legacy industrial designs where existing TO-220 layout precludes TO-262AA adoption. |
Compared with STTH8R04DJF and IXYS MUR840E, VS-8ETU04-1HM3 uniquely combines AEC-Q101 qualification, MSL Level 1 reflow capability, and TO-262AA thermal performance - making it the only option qualified for new automotive power module designs requiring both reliability and manufacturability.
Availability
VS-8ETU04-1HM3 is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial UPS systems, and motor drive chopper circuits requiring stable component supply, long-term lifecycle support, and AEC-Q101 compliance.
Supply support for VS-8ETU04-1HM3 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 automotive, industrial, and computing markets.
The FRED Pt® series - including VS-8ETU04-1HM3 - was engineered specifically for high-frequency, high-efficiency power conversion where ultrafast recovery and low VF must coexist without compromise.
FAQ
What is the maximum average forward current rating for VS-8ETU04-1HM3?
The VS-8ETU04-1HM3 is rated for 8 A average forward current (IF(AV)) at case temperature TC = 155 °C. This rating assumes proper heatsinking and is derated linearly below that temperature - for example, at TC = 100 °C, the usable IF(AV) increases to approximately 11.5 A based on thermal resistance data.
Is VS-8ETU04-1HM3 pin-compatible with VS-8ETU04SHM3?
No, VS-8ETU04-1HM3 and VS-8ETU04SHM3 are not pin-compatible. VS-8ETU04-1HM3 uses the TO-262AA package with 3 leads and internal cathode-to-tab connection, while VS-8ETU04SHM3 uses D2PAK (TO-263AB) with different lead spacing, thermal pad orientation, and solder footprint. Layout changes are required for substitution.
Does VS-8ETU04-1HM3 support lead-free reflow soldering?
Yes, VS-8ETU04-1HM3 is qualified for lead-free reflow with a maximum peak temperature of 260 °C and meets MSL Level 1 per J-STD-020. Its "M3" suffix confirms halogen-free, RoHS-compliant, and Pb-free terminations - enabling compatibility with standard Class 3 electronics assembly processes.
What is the reverse recovery charge (Qrr) specification for VS-8ETU04-1HM3?
The VS-8ETU04-1HM3 has a typical reverse recovery charge (Qrr) of 60 nC at TJ = 25 °C, IF = 1.0 A, dIF/dt = 50 A/μs, and VR = 30 V. At elevated temperature (TJ = 125 °C), Qrr rises to 210 nC - a critical parameter for snubber design and EMI filtering in high-frequency converters.
How does the AEC-Q101 qualification impact VS-8ETU04-1HM3 usage in automotive applications?
The AEC-Q101 qualification for VS-8ETU04-1HM3 validates its robustness for automotive power electronics, including temperature cycling, humidity bias, mechanical shock, and whisker resistance testing per JESD201 Class 1. This enables direct use in engine bay, battery management, and ADAS power supplies without additional qualification effort.
VS-8ETU04-1HM3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- FRED Pt®
- Package/Case:
- TO-262-3 Long Leads, I2PAK, TO-262AA
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 400 V
- Current - Average Rectified (Io):
- 8A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 8 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 43 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 400 V
- Capacitance @ Vr, F:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-262-3
- Operating Temperature - Junction:
- -55°C ~ 175°C
VS-8ETU04-1HM3 FAQ
1.How can I place an order for VS-8ETU04-1HM3 through Aetrix?
Please submit a Request for Quotation (RFQ) for VS-8ETU04-1HM3 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-8ETU04-1HM3 reliable?
The price and inventory of VS-8ETU04-1HM3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VS-8ETU04-1HM3 is usually 5 days.
3.What payment methods are accepted for VS-8ETU04-1HM3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VS-8ETU04-1HM3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VS-8ETU04-1HM3?
VS-8ETU04-1HM3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VS-8ETU04-1HM3 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-8ETU04-1HM3?
For technical support, including VS-8ETU04-1HM3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VS-8ETU04-1HM3 requirements.
6.How does Aetrix verify that VS-8ETU04-1HM3 is sourced from the original manufacturer or authorized distributors?
All VS-8ETU04-1HM3 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-8ETU04-1HM3 meets industry standards.
7.What is the process for return or replacement of VS-8ETU04-1HM3?
All VS-8ETU04-1HM3 units undergo pre-shipment inspection (PSI). If there is an issue with VS-8ETU04-1HM3, 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-8ETU04-1HM3 part is unused and in its original packaging.
Return procedure for VS-8ETU04-1HM3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VS-8ETU04-1HM3 Tags
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