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Taiwan Semiconductor Corporation MUR340S M6G
- Part No.:
- MUR340S M6G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
MUR340S M6G.pdf
- Description:
- DIODE GEN PURP 400V 3A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,783
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Product details
Overview
MUR340S M6G from Taiwan Semiconductor is an ultra-fast recovery surface-mount rectifier diode rated for 3 A average forward current and 400 V repetitive peak reverse voltage, with 50 ns reverse recovery time and 1.25 V forward voltage at 3 A and 25°C, used in high-frequency switching mode power supplies and freewheeling paths in telecom and computing systems.
For engineers reviewing the MUR340S M6G datasheet, MUR340S M6G pinout, MUR340S M6G application, or MUR340S M6G equivalent, key selection factors include its DO-214AB (SMC) package, 75 A non-repetitive surge rating, 175°C maximum junction temperature, and verified performance under 150°C operating conditions.
Technical Context
This device is a single-die, silicon planar junction rectifier with glass passivated chip construction, optimized for high-efficiency DC/DC conversion where fast switching and low conduction loss are critical. Its ultra-fast recovery (trr = 50 ns) minimizes switching losses in hard-switched topologies.
The MUR340S M6G operates across –55°C to +175°C junction temperature range and maintains stable reverse leakage (<250 μA at 150°C) and forward voltage (1.05 V at 3 A, 150°C), supporting reliable operation in thermally demanding industrial and telecom power stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in flyback or boost output rectification. |
| IF | 3 A - Continuous average forward current; supports mid-power SMPS outputs up to ~75 W with appropriate heatsinking. |
| trr | 50 ns - Ultra-fast reverse recovery; reduces switching loss and EMI in 100–500 kHz converters. |
| VF @ 3 A, 25°C | 1.25 V - Forward voltage drop; determines conduction loss and thermal rise at full load. |
| IFSM | 75 A - Peak non-repetitive surge current (8.3 ms sine); withstands inrush and fault transients without failure. |
| TJ max | 175°C - Maximum junction temperature; enables operation in sealed enclosures or high ambient environments. |
Pinout & Package
Package: DO-214AB (SMC), surface-mount plastic case with matte tin-plated leads, polarity indicated by cathode band, weight ≈0.210 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., switch node in buck, transformer secondary in flyback). |
| Cathode | Forward current exit / reverse blocking terminal | Connected to output rail; cathode band marks this terminal for correct PCB orientation and polarity verification. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enhances long-term reliability and moisture resistance per J-STD-020 Level 1, eliminating need for conformal coating in humid environments. |
| Ultra-fast 50 ns recovery | Reduces turn-off energy loss and associated heat generation in high-frequency SMPS, improving efficiency over standard fast rectifiers. |
| DO-214AB (SMC) package | Enables automated pick-and-place assembly and provides robust thermal path (RθJL = 11°C/W) for board-level heat dissipation. |
| RoHS & halogen-free compliance | Meets IEC 61249-2-21 and environmental regulations for consumer, telecom, and industrial end equipment. |
Applications
| Server Power Supply Rectification | Telecom DC/DC Converter Output |
|---|---|
Use Scenario: Secondary-side rectification in 48 V input, 12 V/3 A isolated DC/DC modules for rack-mounted servers. IC Role / Device Role / Timing Role: Ultra-fast power rectifier handling continuous 3 A output with minimal voltage drop and switching loss. Use Value: Enables >92% efficiency at full load due to low VF and trr, reducing thermal stress on adjacent MOSFETs and magnetics. | Use Scenario: Output rectification in 36–75 V telecom power bricks supplying 5 V/3 A to line cards. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous rectified forward converter, clamping inductive kick during switch off-time. Use Value: 50 ns trr prevents reverse recovery current overlap with high-side FET turn-on, minimizing shoot-through risk. |
| Industrial Motor Drive Snubber | Automated Test Equipment Power Stage |
Use Scenario: Snubber diode across IGBT gate drivers or relay coils in programmable logic controller (PLC) output modules. IC Role / Device Role / Timing Role: Fast freewheeling path for inductive energy dissipation during rapid coil de-energization. Use Value: Sub-100 ns recovery ensures clean voltage clamp and eliminates voltage spikes exceeding 400 V rating. | Use Scenario: Input rectification stage in bench power supply units delivering 0–30 V/3 A with digital control and fast transient response. IC Role / Device Role / Timing Role: Primary AC-to-DC rectifier feeding bulk capacitor in linear-regulated or hybrid topology. Use Value: 175°C TJ max allows sustained operation under repeated 3 A load cycling without derating in compact chassis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH3L04S | Same DO-214AB package, 400 V VRRM, but 35 ns trr and 1.15 V VF @ 3 A, 25°C. | Better high-frequency efficiency; slightly tighter thermal margin due to lower RθJL (9.5°C/W). | Preferred where <500 kHz operation or lowest possible conduction+switching loss is prioritized. |
| ES3D-E3/57T | DO-214AB, 200 V VRRM, 3 A, 35 ns trr; not voltage-compatible with 400 V designs. | Limited to ≤200 V circuits; unsuitable for MUR340S M6G's 400 V use cases without redesign. | Only viable if system reverse voltage is confirmed ≤200 V and faster recovery is needed. |
Compared with STTH3L04S and ES3D-E3/57T, the MUR340S M6G offers balanced 400 V capability and 50 ns recovery for cost-sensitive industrial and telecom power supplies, while avoiding over-specification or under-voltage risk in legacy 400 V designs.
Availability
MUR340S M6G is available at Aetrix Electronics and suitable for server power supplies, telecom DC/DC converters, and industrial motor drive snubbers requiring stable component supply and RoHS-compliant sourcing.
Supply support for MUR340S M6G 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, serving global industrial, computing, and communications markets since 1979.
The MUR340S M6G belongs to TSC's ultra-fast rectifier product line, engineered specifically for high-frequency switching power conversion where low forward voltage, fast recovery, and thermal robustness are essential.
FAQ
What is the maximum junction temperature rating for the MUR340S M6G?
The MUR340S M6G has a maximum junction temperature (TJ) of +175°C, enabling reliable operation in high-ambient environments such as enclosed power supplies or industrial control cabinets. This rating is validated across its full electrical specification range and supports extended lifetime under thermal stress when mounted on standard FR-4 PCBs with adequate copper area.
Does the MUR340S M6G have a specified reverse recovery time, and how is it measured?
Yes, the MUR340S M6G has a typical reverse recovery time (trr) of 50 ns, measured under conditions of IF = 0.5 A, IR = 1.0 A, and IRR = 0.25 A. This value is confirmed in the official Taiwan Semiconductor datasheet Version J2212 and reflects performance at room temperature; trr increases moderately at elevated junction temperatures but remains within ultra-fast classification.
What package type does the MUR340S M6G use, and is it compatible with standard SMC footprints?
The MUR340S M6G uses the DO-214AB (SMC) surface-mount package, with standardized mechanical dimensions matching JEDEC DO-214AB Issue D. Its outline and pad layout are fully compatible with industry-standard SMC footprints, supporting automated placement and reflow soldering per J-STD-002 requirements.
Is the MUR340S M6G RoHS and halogen-free compliant?
Yes, the MUR340S M6G is RoHS compliant and halogen-free per IEC 61249-2-21. The molding compound is UL 94V-0 rated, and terminals are matte tin plated-fully satisfying environmental requirements for consumer, telecom, and industrial end equipment without requiring exemptions.
What is the forward voltage drop of the MUR340S M6G at rated current and elevated temperature?
At 3 A forward current and 150°C junction temperature, the MUR340S M6G exhibits a maximum forward voltage (VF) of 1.05 V. This lower VF at high temperature-compared to 1.25 V at 25°C-reflects improved carrier injection efficiency and supports stable thermal performance in sustained high-load operation.
MUR340S M6G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AB, SMC
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 400 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 1.25 V @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 50 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 400 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
- Operating Temperature - Junction:
- -55°C ~ 175°C
MUR340S M6G FAQ
1.How can I place an order for MUR340S M6G through Aetrix?
Please submit a Request for Quotation (RFQ) for MUR340S M6G 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 MUR340S M6G reliable?
The price and inventory of MUR340S M6G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MUR340S M6G is usually 5 days.
3.What payment methods are accepted for MUR340S M6G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MUR340S M6G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MUR340S M6G?
MUR340S M6G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MUR340S M6G 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 MUR340S M6G?
For technical support, including MUR340S M6G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MUR340S M6G requirements.
6.How does Aetrix verify that MUR340S M6G is sourced from the original manufacturer or authorized distributors?
All MUR340S M6G 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 MUR340S M6G meets industry standards.
7.What is the process for return or replacement of MUR340S M6G?
All MUR340S M6G units undergo pre-shipment inspection (PSI). If there is an issue with MUR340S M6G, 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 MUR340S M6G part is unused and in its original packaging.
Return procedure for MUR340S M6G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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