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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Vishay General Semiconductor - Diodes Division VS-ETX1506S-M3

Name: VS-ETX1506S-M3
Brand: Vishay General Semiconductor - Diodes Division
SKU: VS-ETX1506S-M3
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: VS-ETX1506S-M3

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: Single Diodes

Package:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Datasheet:: VS-ETX1506S-M3.pdf

Description:: DIODE GEN PURP 600V 15A TO263AB

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Product details

Overview

VS-ETX1506S-M3 from Vishay Semiconductors is a hyperfast recovery rectifier optimized for PFC boost stages and freewheeling applications in high-frequency SMPS and inverters. It delivers 15 A average forward current, 600 V repetitive peak reverse voltage, 18 ns typical reverse recovery time at 15 A/100 A/μs, 1.55 V forward voltage at 15 A and 150 °C, and operates up to 175 °C junction temperature.

For engineers reviewing the VS-ETX1506S-M3 datasheet, VS-ETX1506S-M3 pinout, VS-ETX1506S-M3 application, or VS-ETX1506S-M3 equivalent, key selection criteria include ultra-low Qrr (26 nC typ. at 25 °C), soft recovery behavior, low thermal resistance (1.3 °C/W j-c), D2PAK (TO-263AB) surface-mount package, and JEDEC JESD47 qualification for reliability-critical power conversion designs.

Technical Context

This device employs a planar silicon structure with platinum doping for precise lifetime control, enabling simultaneous optimization of forward conduction loss, reverse recovery speed, and softness. Its dynamic performance is characterized under standardized conditions: trr measured from zero-crossing to extrapolated 0 A using 0.5–0.75 IRRM points, with Qrr defined as the integral of reverse current over trr.

The VS-ETX1506S-M3 is rated for 120 A non-repetitive surge current and features low leakage (≤250 μA at 150 °C, VR = 600 V), 12 pF junction capacitance at 600 V, and 8.0 nH series inductance-critical parameters for minimizing switching node ringing and EMI in hard-switched topologies.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	600 V - Withstands full-line transients in universal-input 380 V DC bus PFC stages without avalanche stress.
I_F(AV)	15 A at T_C = 127 °C - Supports continuous conduction mode (CCM) PFC operation with standard heatsinking.
V_F @ 15 A / 150 °C	1.55 V - Reduces conduction loss by ~22% vs. standard FRDs at elevated temperature, improving system efficiency.
t_rr (typ.)	18 ns @ 15 A, 100 A/μs, 30 V - Enables >300 kHz switching in interleaved PFC while limiting diode-induced turn-on loss in MOSFETs.
Q_rr (typ.)	26 nC @ 25 °C - Minimizes stored charge dissipation in snubbers and reduces voltage overshoot across switching devices.
R_thJC	1.3 °C/W - Allows direct thermal coupling to PCB copper or heatsink for compact, high-power-density layouts.
T_J max.	175 °C - Enables operation in thermally constrained environments such as enclosed industrial power supplies.

Pinout & Package

D2PAK (TO-263AB) surface-mount package with isolated thermal pad; 3-terminal single-diode configuration; RoHS-compliant, halogen-free, lead (Pb)-free terminations.

Pin/Terminal	Circuit Role	Design Meaning
1	Anode	Main current entry point; electrically connected to die anode; requires low-inductance trace routing in high-dI/dt paths.
2	Cathode	Main current exit point; bonded to large internal copper tab; serves as primary thermal and electrical return path.
3	NC (No Connect)	Internally unconnected terminal; must remain unconnected on PCB to avoid parasitic coupling or mechanical stress.

Key Features

Feature	Design Value
Platinum-doped lifetime control	Enables precise tuning of carrier recombination for consistent trr and Qrr across temperature and current ranges.
Soft recovery characteristic	Reduces EMI generation and voltage spikes during commutation, easing filter design and improving system EMC compliance.
JEDEC JESD47 qualification	Validates robustness against temperature cycling, humidity, and mechanical stress for long-term field reliability.
MSL Level 1 rating	Permits unlimited floor life and standard reflow without baking, simplifying SMT manufacturing flow.
Low R_thJC + thermal pad	Supports >90% of junction-to-case heat transfer through soldered thermal pad, enabling high-power operation on 2-layer boards.

Applications

AC/DC PFC Boost Stage	Inverter Freewheeling Diode
Use Scenario: High-efficiency active PFC stage in 1–3 kW server PSUs or telecom rectifiers operating at 100–300 kHz. IC Role / Device Role / Timing Role: Unidirectional current rectifier in continuous conduction mode (CCM) boost topology; recovers before next MOSFET turn-on to minimize switching loss. Use Value: 18 ns t_rr and 26 nC Q_rr reduce MOSFET turn-on loss and snubber dissipation, directly improving full-load efficiency by 0.3–0.5%.	Use Scenario: Bidirectional energy recirculation path in three-phase motor drives or solar string inverters with IGBT or SiC MOSFET bridges. IC Role / Device Role / Timing Role: Freewheeling path for inductive load current during PWM dead-time; must recover rapidly to prevent shoot-through and voltage overshoot. Use Value: Soft recovery and 175 °C rating allow reliable operation under high ambient temperatures and transient overloads without thermal runaway.
Solar Microinverter Output Rectification	Industrial UPS DC-Link Clamp
Use Scenario: High-frequency AC output rectification in transformerless microinverters where galvanic isolation is omitted. IC Role / Device Role / Timing Role: Output-stage synchronous rectifier replacement; blocks reverse current during high-side switch conduction while recovering fast enough for 50–100 kHz operation. Use Value: 600 V V_RRM withstands reflected grid transients; low V_F minimizes conduction loss in compact, passively cooled enclosures.	Use Scenario: Clamp diode across DC-link capacitors in 400–800 V industrial UPS systems to absorb regenerative energy during rapid load changes. IC Role / Device Role / Timing Role: Transient energy sink during inverter regeneration; conducts only during overvoltage events but must survive repeated 120 A surge currents. Use Value: 120 A I_FSM rating and rugged planar construction ensure survivability under frequent clamping events without parameter drift.

AC/DC PFC Boost Stage

Inverter Freewheeling Diode

Use Scenario: High-efficiency active PFC stage in 1–3 kW server PSUs or telecom rectifiers operating at 100–300 kHz.

IC Role / Device Role / Timing Role: Unidirectional current rectifier in continuous conduction mode (CCM) boost topology; recovers before next MOSFET turn-on to minimize switching loss.

Use Value: 18 ns t_rr and 26 nC Q_rr reduce MOSFET turn-on loss and snubber dissipation, directly improving full-load efficiency by 0.3–0.5%.

Use Scenario: Bidirectional energy recirculation path in three-phase motor drives or solar string inverters with IGBT or SiC MOSFET bridges.

IC Role / Device Role / Timing Role: Freewheeling path for inductive load current during PWM dead-time; must recover rapidly to prevent shoot-through and voltage overshoot.

Use Value: Soft recovery and 175 °C rating allow reliable operation under high ambient temperatures and transient overloads without thermal runaway.

Solar Microinverter Output Rectification

Industrial UPS DC-Link Clamp

Use Scenario: High-frequency AC output rectification in transformerless microinverters where galvanic isolation is omitted.

IC Role / Device Role / Timing Role: Output-stage synchronous rectifier replacement; blocks reverse current during high-side switch conduction while recovering fast enough for 50–100 kHz operation.

Use Value: 600 V V_RRM withstands reflected grid transients; low V_F minimizes conduction loss in compact, passively cooled enclosures.

Use Scenario: Clamp diode across DC-link capacitors in 400–800 V industrial UPS systems to absorb regenerative energy during rapid load changes.

IC Role / Device Role / Timing Role: Transient energy sink during inverter regeneration; conducts only during overvoltage events but must survive repeated 120 A surge currents.

Use Value: 120 A I_FSM rating and rugged planar construction ensure survivability under frequent clamping events without parameter drift.

Equivalent & Alternatives

The following parts are listed as comparable options for similar hyperfast rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH1506D	15 A / 600 V hyperfast; t_rr = 25 ns (typ.), Q_rr = 42 nC (typ.) at 25 °C; TO-220AC package.	Higher Q_rr increases switching loss in high-frequency PFC; through-hole mounting limits board density.	Preferred where cost sensitivity outweighs efficiency targets and manual assembly is acceptable.
IXYS MUR1560CT	15 A / 600 V ultrafast; t_rr = 35 ns (typ.), Q_rr = 65 nC (typ.); dual common-cathode configuration in TO-220AB.	Slower recovery and higher Q_rr degrade high-frequency efficiency; dual-diode layout adds routing complexity for single-diode use cases.	Suitable for lower-frequency (<100 kHz) designs where dual-diode integration offsets performance gap.

Compared with STTH1506D and IXYS MUR1560CT, the VS-ETX1506S-M3 offers superior high-frequency efficiency via lower Q_rr and faster t_rr, plus surface-mount scalability and higher temperature capability-making it optimal for space-constrained, thermally demanding PFC and inverter applications.

Availability

VS-ETX1506S-M3 is available at Aetrix Electronics and suitable for AC/DC PFC boost stages, inverter freewheeling circuits, solar microinverter rectification, and industrial UPS DC-link clamping requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for VS-ETX1506S-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 Intertechnology is a global semiconductor manufacturer specializing in discrete components, sensors, and passive elements, with leadership in power rectification, MOSFETs, and precision resistors.

The FRED Pt® hyperfast rectifier product line is engineered for high-efficiency, high-frequency power conversion systems-specifically targeting PFC, inverter, and switching power supply applications where low Q_rr, soft recovery, and thermal robustness are critical.

FAQ

What is the maximum junction temperature rating for the VS-ETX1506S-M3?

The VS-ETX1506S-M3 has a maximum junction temperature rating of 175 °C, verified per JEDEC JESD47 qualification testing. This allows sustained operation in thermally demanding environments such as enclosed industrial power supplies or high-ambient-temperature motor drives. The 175 °C rating is supported by its platinum-doped silicon structure and D2PAK thermal pad design, which maintains parameter stability up to this limit.

Does the VS-ETX1506S-M3 have a pin-compatible alternative in TO-262AA package?

Yes-the VS-ETX1506-1-M3 is the identical die in TO-262AA package, sharing all electrical specifications including 600 V V_RRM, 15 A I_F(AV), 18 ns t_rr, and 1.55 V V_F at 15 A/150 °C. Pinout differs: TO-262AA uses pins 1 (anode), 2 (cathode), 4 (cathode), with pin 3 unused. No PCB redesign is needed if migrating between VS-ETX1506S-M3 and VS-ETX1506-1-M3, provided mechanical constraints permit the alternate package.

How does the soft recovery characteristic of the VS-ETX1506S-M3 improve EMI performance?

The soft recovery of the VS-ETX1506S-M3 reduces the rate of change of reverse current (di_rec/dt) during turn-off, lowering high-frequency spectral content in switching node waveforms. Measured data shows peak I_RRM of 2.7 A at 25 °C and 5.5 A at 125 °C-significantly less abrupt than standard FRDs. This directly eases input filter requirements and improves conducted EMI margin in Class B power supplies without adding snubbers.

What is the thermal resistance from junction to case (R_thJC) for the VS-ETX1506S-M3?

The VS-ETX1506S-M3 has a typical junction-to-case thermal resistance of 1.3 °C/W, with a maximum of 1.51 °C/W, measured under standard test conditions per JESD51-14. This value assumes full-solder coverage of the exposed thermal pad to a minimum 1-in² copper area on the PCB. The low R_thJC enables efficient heat extraction-critical for maintaining <150 °C junction temperature in 15 A continuous operation with minimal heatsinking.

Is the VS-ETX1506S-M3 suitable for use in automotive-grade power supplies?

The VS-ETX1506S-M3 is not AEC-Q101 qualified and lacks automotive-specific screening or extended temperature validation beyond its rated -65 °C to +175 °C range. While its JEDEC JESD47 qualification and 175 °C rating support harsh industrial environments, it is not approved for safety-critical automotive applications such as onboard chargers or DC-DC converters in ADAS or powertrain systems. For automotive use, consult Vishay's AEC-Q101-certified FRED Pt® variants like the VS-ETU1506-M3.

VS-ETX1506S-M3 Specifications

Product attributes: Attribute value

Manufacturer:: Vishay General Semiconductor - Diodes Division

Series:: FRED Pt®

Package/Case:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Packaging:: Bulk

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 600 V

Current - Average Rectified (Io):: 15A

Voltage - Forward (Vf) (Max) @ If:: 3.4 V @ 15 A

Speed:: Fast Recovery =< 500ns, > 200mA (Io)

Reverse Recovery Time (trr):: 20 ns

Current - Reverse Leakage @ Vr:: 36 µA @ 600 V

Capacitance @ Vr, F:: -

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TO-263AB (D2PAK)

Operating Temperature - Junction:: -65°C ~ 175°C

VS-ETX1506S-M3 FAQ

1.How can I place an order for VS-ETX1506S-M3 through Aetrix?

Please submit a Request for Quotation (RFQ) for VS-ETX1506S-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-ETX1506S-M3 reliable?

The price and inventory of VS-ETX1506S-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-ETX1506S-M3 is usually 5 days.

3.What payment methods are accepted for VS-ETX1506S-M3?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VS-ETX1506S-M3 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for VS-ETX1506S-M3?

VS-ETX1506S-M3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your VS-ETX1506S-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-ETX1506S-M3?

For technical support, including VS-ETX1506S-M3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VS-ETX1506S-M3 requirements.

6.How does Aetrix verify that VS-ETX1506S-M3 is sourced from the original manufacturer or authorized distributors?

All VS-ETX1506S-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-ETX1506S-M3 meets industry standards.

7.What is the process for return or replacement of VS-ETX1506S-M3?

All VS-ETX1506S-M3 units undergo pre-shipment inspection (PSI). If there is an issue with VS-ETX1506S-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-ETX1506S-M3 part is unused and in its original packaging.

Return procedure for VS-ETX1506S-M3:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

VS-ETX1506S-M3 Tags

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