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Taiwan Semiconductor Corporation MUR440S V7G
- Part No.:
- MUR440S V7G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
MUR440S V7G.pdf
- Description:
- DIODE GEN PURP 400V 4A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2
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Product details
Overview
MUR440S V7G from Taiwan Semiconductor is a 4A, 400V ultra-fast recovery surface-mount rectifier diode in DO-214AB (SMC) package, featuring 50 ns reverse recovery time, 1.25 V max forward voltage at 4A/25°C, and 75 A peak surge current - deployed in high-frequency switching mode power supplies for telecom and computing infrastructure.
For engineers reviewing the MUR440S V7G datasheet, MUR440S V7G pinout, MUR440S V7G application, or MUR440S V7G equivalent, key selection criteria include reverse recovery time, thermal resistance (RθJC = 8.5°C/W), junction temperature range (–55°C to +175°C), moisture sensitivity level (J-STD-020 Level 1), and RoHS/halogen-free compliance.
Technical Context
This single-die, unidirectional ultra-fast rectifier uses glass-passivated junction technology to achieve stable switching performance under high dv/dt conditions. Its 50 ns trr and low Qrr support efficient operation in 100 kHz–500 kHz SMPS topologies without significant switching loss penalties.
The DO-214AB (SMC) package provides robust thermal dissipation (RθJA = 45°C/W) and mechanical reliability for automated SMT assembly. Cathode band polarity marking and matte tin-plated leads ensure consistent solderability per J-STD-002 and whisker resistance per JESD 201 Class 2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - maximum repetitive reverse blocking voltage; defines safe operating limit in flyback/freewheeling clamp circuits |
| IF | 4 A continuous - rated average forward current at case temperature ≤ 75°C; determines heatsink sizing in DC-DC converters |
| trr | 50 ns - ultra-fast reverse recovery time; minimizes switching losses and EMI in high-frequency SMPS designs |
| VF (max) | 1.25 V @ 4A, 25°C - forward voltage drop directly impacts conduction loss and thermal load in output rectification stage |
| RθJC | 8.5 °C/W - junction-to-case thermal resistance; enables accurate thermal modeling when mounted on copper pads or heatsinks |
| IFSM | 75 A @ 8.3 ms - non-repetitive surge rating; supports inrush current handling during power-up in server PSUs |
| Junction temp | –55°C to +175°C - wide operating range allows use in industrial ambient environments without derating |
Pinout & Package
DO-214AB (SMC) surface-mount package with cathode-indicating band; 2-terminal configuration (anode and cathode); matte tin-plated leads; UL 94V-0 molding compound; weight ≈ 0.250 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to input/high-side node in rectifier bridge or freewheeling path |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; ties to output/common rail; withstands up to 400 V reverse bias |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures long-term stability of reverse leakage and breakdown characteristics under thermal cycling |
| Ultra-fast 50 ns trr | Reduces switching loss and improves efficiency in >100 kHz DC-DC converters and PFC stages |
| J-STD-020 Level 1 moisture sensitivity | Enables direct placement without baking; eliminates production delay and moisture-related popcorning risk |
| RoHS & halogen-free (IEC 61249-2-21) | Meets global environmental compliance requirements for telecom and industrial end equipment |
| Matte tin plating (J-STD-002 compliant) | Guarantees reliable solder wetting and intermetallic formation in lead-free reflow processes |
Applications
| Server Power Supply Rectification | Telecom DC-DC Converter Output Stage |
|---|---|
Use Scenario: High-efficiency 48 V–12 V intermediate bus conversion in carrier-grade telecom systems. IC Role / Device Role / Timing Role: Output rectifier in synchronous or quasi-resonant forward converter topology. Use Value: 50 ns trr and 1.25 V VF reduce conduction and switching losses, improving overall converter efficiency by ≥0.8% at full load. | Use Scenario: Secondary-side rectification in redundant 1U server PSUs operating at 200–300 kHz. IC Role / Device Role / Timing Role: Freewheeling diode in active clamp forward or LLC resonant converter. Use Value: RθJC = 8.5°C/W and 175°C TJMAX allow sustained 4 A operation without forced air cooling. |
| Industrial Motor Drive Snubber Circuit | Automotive On-Board Charger (OBC) PFC Stage |
Use Scenario: Voltage clamping and energy recycling in IGBT-based 3-phase inverter snubbers. IC Role / Device Role / Timing Role: Fast recovery clamp diode absorbing inductive kickback during switching transitions. Use Value: 75 A IFSM withstands transient overcurrent spikes; 400 V VRRM accommodates 350 V DC bus with margin. | Use Scenario: Boost diode in two-stage OBC PFC front-end operating at 65–100 kHz. IC Role / Device Role / Timing Role: Unidirectional high-voltage rectifier in interleaved boost converter. Use Value: Low Qrr (implied by 50 ns trr) reduces EMI generation and improves THD compliance in Class B PFC designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH4L06S | 600 V VRRM, 55 ns trr, same DO-214AB package, higher VF (1.35 V) | Better voltage margin but slightly lower efficiency at 400 V nominal bus | Select when system requires >450 V reverse standoff or legacy ST design reuse |
| ES4D-E3/57T | 400 V VRRM, 60 ns trr, same IF/IFSM, higher RθJA (50°C/W) | Marginally slower recovery and reduced thermal headroom in compact layouts | Acceptable where layout allows larger copper area or lower ambient temperature |
Compared with STTH4L06S and ES4D-E3/57T, the MUR440S V7G delivers optimal balance of 400 V rating, 50 ns speed, and 8.5°C/W thermal resistance - making it preferred for space-constrained, high-efficiency telecom and server power rectification where precise voltage matching and thermal performance are critical.
Availability
MUR440S V7G is available at Aetrix Electronics and suitable for server power supplies, telecom DC-DC converters, and industrial motor drive snubber circuits requiring stable component supply, J-STD-020 Level 1 handling, and RoHS-compliant sourcing.
Supply support for MUR440S V7G 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, specializing in rectifiers, TVS diodes, MOSFETs, and bipolar transistors since 1979.
The MUR440S V7G belongs to TSC's ultra-fast rectifier product line, engineered specifically for high-frequency switching power conversion in computing, communications, and industrial equipment where low trr, stable VF, and robust thermal performance are essential.
FAQ
What is the maximum junction temperature rating for the MUR440S V7G?
The MUR440S V7G has a maximum junction temperature (TJMAX) of +175°C and a minimum of –55°C. This wide range allows reliable operation in harsh industrial environments and high-power-density server PSUs without thermal derating below 125°C ambient. The MUR440S V7G maintains specified electrical parameters across this full range when operated within its absolute maximum ratings.
Does the MUR440S V7G have a defined moisture sensitivity level (MSL)?
Yes, the MUR440S V7G is rated at Moisture Sensitivity Level 1 per J-STD-020 - the highest reliability tier - meaning it can be stored indefinitely in dry packaging and placed directly onto PCBs without baking. This eliminates production delays and prevents popcorn cracking during lead-free reflow, making the MUR440S V7G ideal for high-throughput SMT lines.
What is the reverse recovery time (trr) of the MUR440S V7G, and under what test conditions is it measured?
The MUR440S V7G has a typical reverse recovery time (trr) of 50 ns, measured under conditions of IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A, and TJ = 25°C. This ultra-fast value is confirmed in the official Taiwan Semiconductor datasheet F2102 and enables high-efficiency operation in switching frequencies up to 500 kHz without excessive switching loss in the MUR440S V7G.
Is the MUR440S V7G RoHS and halogen-free compliant?
Yes, the MUR440S V7G is fully RoHS compliant and halogen-free per IEC 61249-2-21. Its molding compound contains no brominated flame retardants or chlorine-based additives, and all terminations use matte tin plating without lead, antimony, or bismuth. This compliance is verified in TSC's material declarations and supports global environmental requirements for telecom and industrial end equipment using the MUR440S V7G.
What package type does the MUR440S V7G use, and what are its key mechanical features?
The MUR440S V7G uses the DO-214AB (SMC) surface-mount package. Key mechanical features include UL 94V-0 flammability-rated epoxy molding, cathode band polarity marking, matte tin-plated leads compliant with J-STD-002, and JESD 201 Class 2 whisker resistance. Its footprint and thermal pad layout match industry-standard SMC land patterns, ensuring compatibility with existing MUR440S V7G assembly processes.
MUR440S V7G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AB, SMC
- Packaging:
- Cut Tape (CT)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 400 V
- Current - Average Rectified (Io):
- 4A
- Voltage - Forward (Vf) (Max) @ If:
- 1.25 V @ 4 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 50 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 400 V
- Capacitance @ Vr, F:
- 65pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
- Operating Temperature - Junction:
- -55°C ~ 175°C
MUR440S V7G FAQ
1.How can I place an order for MUR440S V7G through Aetrix?
Please submit a Request for Quotation (RFQ) for MUR440S V7G 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 MUR440S V7G reliable?
The price and inventory of MUR440S V7G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MUR440S V7G is usually 5 days.
3.What payment methods are accepted for MUR440S V7G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MUR440S V7G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MUR440S V7G?
MUR440S V7G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MUR440S V7G 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 MUR440S V7G?
For technical support, including MUR440S V7G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MUR440S V7G requirements.
6.How does Aetrix verify that MUR440S V7G is sourced from the original manufacturer or authorized distributors?
All MUR440S V7G 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 MUR440S V7G meets industry standards.
7.What is the process for return or replacement of MUR440S V7G?
All MUR440S V7G units undergo pre-shipment inspection (PSI). If there is an issue with MUR440S V7G, 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 MUR440S V7G part is unused and in its original packaging.
Return procedure for MUR440S V7G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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