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Vishay General Semiconductor - Diodes Division VS-ETU1506-1-M3
- Part No.:
- VS-ETU1506-1-M3
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Single Diodes
- Package:
- TO-262-3 Long Leads, I2PAK, TO-262AA
- Datasheet:
-
VS-ETU1506-1-M3.pdf
- Description:
- DIODE GEN PURP 600V 15A TO262-3
- Quantity:
- Payment:
- Shipping:
Inventory:7,601
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Product details
Overview
VS-ETU1506-1-M3 from Vishay Semiconductors is a single ultrafast rectifier optimized for critical-mode PFC stages in AC/DC SMPS, featuring 600 V repetitive peak reverse voltage, 15 A average forward current at TC = 143 °C, and 24 ns typical reverse recovery time at IF = 1 A. It delivers low conduction loss (VF = 1.1 V @ IF = 15 A, TJ = 150 °C) and operates up to 175 °C junction temperature.
For engineers reviewing the VS-ETU1506-1-M3 datasheet, VS-ETU1506-1-M3 pinout, VS-ETU1506-1-M3 application, or VS-ETU1506-1-M3 equivalent, key selection criteria include soft-switching recovery behavior, thermal resistance (RthJC = 1.3–1.51 °C/W), and TO-262AA package compatibility with high-power freewheeling and snubberless PFC designs.
Technical Context
This device implements FRED Pt® (Fast Recovery Epitaxial Diode) technology with optimized stored charge (Qrr = 107 nC typ. @ TJ = 25 °C) and low peak recovery current (IRRM = 5 A typ. @ TJ = 25 °C), enabling reduced switching losses in discontinuous conduction mode (DCM) PFC circuits. Its ultrafast trr and soft recovery waveform minimize EMI and stress on MOSFETs.
The VS-ETU1506-1-M3 is specifically rated for TO-262AA packaging with three terminals: anode (pin 1), cathode (pins 2 and 4), and base (pin 3). It meets JEDEC JESD47 qualification and MSL Level 1 per J-STD-020, supporting lead-free reflow up to 245 °C peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - Blocks full-line transients in universal-input 85–265 VAC SMPS without derating. |
| IF(AV) | 15 A @ TC = 143 °C - Sustains continuous output power up to ~400 W in compact PFC stages. |
| VF | 1.1 V @ IF = 15 A, TJ = 150 °C - Reduces conduction loss by ≥15% vs. standard fast diodes at elevated temperature. |
| trr (typ.) | 24 ns @ IF = 1 A, dIF/dt = 100 A/μs - Enables >300 kHz PFC operation with minimal tail current overshoot. |
| Qrr | 107 nC @ TJ = 25 °C - Low stored charge limits energy dissipated in snubbers and switching devices. |
| RthJC | 1.3–1.51 °C/W - Supports thermal design with heatsink interface resistance ≤0.5 °C/W for reliable 175 °C operation. |
| TJ max. | 175 °C - Allows sustained operation in enclosed, high-ambient environments without derating. |
Pinout & Package
VS-ETU1506-1-M3 uses the TO-262AA (3-lead, straight-lead variant of TO-220) package with isolated mounting base. The case is electrically connected to the cathode, and pin 3 serves as mechanical base only - not electrically active.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | Main current entry point; connects to PFC boost inductor node. |
| 2, 4 | Cathode | Common cathode connection to output capacitor and ground return path. |
| 3 | Base | Non-electrical mechanical mounting surface; thermally conductive but electrically isolated. |
Key Features
| Feature | Design Value |
|---|---|
| Ultrafast soft recovery | trr = 24 ns typ. with low IRRM (5 A) minimizes voltage spikes and EMI in high-dI/dt PFC transitions. |
| FRED Pt® silicon process | Optimized carrier lifetime control yields consistent Qrr and VF across temperature and production lots. |
| 175 °C junction rating | Enables compact thermal design in space-constrained adapters and industrial power supplies without forced air. |
| JEDEC JESD47 qualified | Validated reliability for 10+ year field life in commercial and industrial AC/DC applications. |
| Halogen-free, RoHS-compliant | M3 suffix confirms Pb-free terminations and halogen-free molding compound compliant with IPC-1752A. |
Applications
| Laptop AC Adaptor | Desktop PC Power Supply |
|---|---|
Use Scenario: 90–120 W universal-input PFC stage operating in DCM at 65–100 kHz. IC Role / Device Role / Timing Role: Freewheeling diode in boost converter; recovers before next switching cycle to prevent reverse conduction loss. Use Value: 24 ns trr and 1.1 V VF reduce total PFC losses by 0.8–1.2 W versus standard fast diodes, improving efficiency to >94% at full load. |
Use Scenario: 300–400 W active PFC front-end with interleaved boost topology and 125 °C ambient. IC Role / Device Role / Timing Role: Main rectifier in each boost leg; handles 15 A average current with <53 ns trr at 125 °C and 800 A/μs dI/dt. Use Value: RthJC ≤1.51 °C/W and 175 °C TJ rating allow direct heatsink mounting without thermal derating in sealed chassis. |
| LED TV Power Supply | Gaming Console AC/DC Module |
Use Scenario: 150–200 W quasi-resonant PFC stage requiring low EMI and zero-voltage switching support. IC Role / Device Role / Timing Role: Output rectifier in boost stage; soft recovery prevents ringing-induced gate drive coupling into controller IC. Use Value: Low Qrr (107 nC) and controlled IRRM suppress voltage overshoot across MOSFETs, eliminating need for RC snubbers. |
Use Scenario: High-transient 250 W gaming PSU with dynamic load steps up to 10 A/μs. IC Role / Device Role / Timing Role: Critical-path freewheeling diode in asymmetric half-bridge PFC; must recover within 40 ns at 125 °C. Use Value: Verified 40 ns trr @ TJ = 125 °C, dIF/dt = 200 A/μs, VR = 390 V ensures stable operation under worst-case transient loads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultrafast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1506D | Same 600 V / 15 A rating but TO-220FP package; trr = 35 ns typ., VF = 1.25 V @ 15 A, TJ = 150 °C. | Higher VF and slower recovery increase conduction + switching loss by ~1.4 W in 300 W PFC. | Acceptable where thermal margin exists and cost sensitivity outweighs efficiency targets. |
| IXYS MUR1560CT | Dual common-cathode configuration in TO-220AB; single-diode section matches VF/trr specs but shares thermal path. | Requires layout revision for single-diode use; dual structure adds parasitic inductance in high-dI/dt PFC nodes. | Only suitable when dual-diode topology is already implemented or board space permits isolation. |
Compared with STTH1506D and IXYS MUR1560CT, the VS-ETU1506-1-M3 offers superior thermal performance (lower RthJC), tighter trr consistency, and TO-262AA's improved heatsinking over TO-220 variants-making it optimal for high-density, high-efficiency PFC designs where thermal headroom is constrained.
Availability
VS-ETU1506-1-M3 is available at Aetrix Electronics and suitable for laptop AC adaptors, desktop PC power supplies, and LED TV AC/DC modules requiring stable component supply, long-term lifecycle support, and validated thermal performance in high-temperature enclosures.
Supply support for VS-ETU1506-1-M3 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 power, signal, and sensing applications.
The VS-ETU1506-1-M3 belongs to Vishay's FRED Pt® ultrafast rectifier product line, engineered specifically for high-frequency, high-efficiency PFC and switching power supply applications demanding low Qrr, soft recovery, and extended temperature capability.
FAQ
What is the maximum allowable case temperature for VS-ETU1506-1-M3 at 15 A average forward current?
The maximum allowable case temperature for VS-ETU1506-1-M3 is 143 °C when conducting 15 A average forward current, as specified in the Absolute Maximum Ratings table. This value is derived from thermal modeling that maintains junction temperature ≤175 °C with RthJC = 1.3–1.51 °C/W and typical heatsink interface resistance. Exceeding 143 °C case temperature risks violating the 175 °C TJ limit and accelerating parametric drift.
Does VS-ETU1506-1-M3 have a pin-compatible replacement in D2PAK (TO-263AB) package?
Yes - VS-ETU1506S-M3 is the D2PAK (TO-263AB) variant of the same die and electrical specifications. Both share identical VF, trr, Qrr, and thermal characteristics, differing only in package outline and pin assignment (VS-ETU1506S-M3 has pins 1 = cathode, 2 = anode, 3 = N/C). PCB redesign is required due to different footprint and thermal pad geometry, but system-level electrical validation is minimal.
What is the reverse leakage current specification for VS-ETU1506-1-M3 at 150 °C junction temperature?
At TJ = 150 °C and VR = 600 V, the reverse leakage current for VS-ETU1506-1-M3 is specified as 20–200 μA (max). This elevated leakage is inherent to silicon diode physics at high temperature but remains well below failure thresholds and does not impact PFC stability or efficiency in typical 400 V DC-link applications.
Can VS-ETU1506-1-M3 be used as a freewheeling diode in synchronous rectification topologies?
No - VS-ETU1506-1-M3 is a unidirectional ultrafast rectifier, not a synchronous rectifier controller or MOSFET. It functions as a passive freewheeling diode in non-synchronous boost or flyback converters. In synchronous topologies, it would replace the body diode of a MOSFET but cannot actively switch; its soft recovery and low Qrr do reduce body-diode conduction loss during dead-time intervals.
Is VS-ETU1506-1-M3 suitable for use in automotive-grade power supplies?
VS-ETU1506-1-M3 is not AEC-Q101 qualified and is intended for commercial/industrial applications only. While its 175 °C TJ rating and JEDEC JESD47 qualification support robust operation, it lacks automotive-specific stress testing (e.g., temperature cycling, humidity bias, ESD HBM ≥2 kV). For automotive infotainment or ADAS power modules, Vishay's AEC-Q101-certified equivalents like VS-ETU1506-M3-A should be selected instead.
VS-ETU1506-1-M3 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):
- 600 V
- Current - Average Rectified (Io):
- 15A
- Voltage - Forward (Vf) (Max) @ If:
- 1.9 V @ 15 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 40 ns
- Current - Reverse Leakage @ Vr:
- 15 µA @ 600 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-262-3
- Operating Temperature - Junction:
- -65°C ~ 175°C
VS-ETU1506-1-M3 FAQ
1.How can I place an order for VS-ETU1506-1-M3 through Aetrix?
Please submit a Request for Quotation (RFQ) for VS-ETU1506-1-M3 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-ETU1506-1-M3 reliable?
The price and inventory of VS-ETU1506-1-M3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VS-ETU1506-1-M3 is usually 5 days.
3.What payment methods are accepted for VS-ETU1506-1-M3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VS-ETU1506-1-M3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VS-ETU1506-1-M3?
VS-ETU1506-1-M3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VS-ETU1506-1-M3 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-ETU1506-1-M3?
For technical support, including VS-ETU1506-1-M3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VS-ETU1506-1-M3 requirements.
6.How does Aetrix verify that VS-ETU1506-1-M3 is sourced from the original manufacturer or authorized distributors?
All VS-ETU1506-1-M3 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-ETU1506-1-M3 meets industry standards.
7.What is the process for return or replacement of VS-ETU1506-1-M3?
All VS-ETU1506-1-M3 units undergo pre-shipment inspection (PSI). If there is an issue with VS-ETU1506-1-M3, 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-ETU1506-1-M3 part is unused and in its original packaging.
Return procedure for VS-ETU1506-1-M3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VS-ETU1506-1-M3 Tags
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