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Taiwan Semiconductor Corporation MUR320S R7G
- Part No.:
- MUR320S R7G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
MUR320S R7G.pdf
- Description:
- DIODE GEN PURP 200V 3A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,587
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Product details
Overview
MUR320S R7G from Taiwan Semiconductor is an ultra-fast recovery surface-mount rectifier with 200 V repetitive peak reverse voltage (VRRM), 3 A average forward current (IF), and 25 ns reverse recovery time (trr), designed for high-frequency switching mode power supplies in telecom and computing infrastructure.
For engineers reviewing the MUR320S R7G datasheet, MUR320S R7G pinout, MUR320S R7G application, or MUR320S R7G equivalent, key selection criteria include its DO-214AB (SMC) package, 0.875 V forward voltage at 3 A/25°C, 75 A non-repetitive surge rating, and cathode-band polarity marking for reliable PCB assembly and thermal management in compact DC-DC converters.
Technical Context
This single-die, glass-passivated silicon rectifier operates across a junction temperature range of –55°C to +175°C and delivers ultra-fast switching performance optimized for freewheeling and output rectification in high-efficiency SMPS topologies. Its 11°C/W junction-to-lead thermal resistance supports stable conduction under sustained 3 A loads without forced cooling.
The device meets J-STD-020 moisture sensitivity level 1, features matte tin-plated leads compliant with J-STD-002 solderability, and is halogen-free per IEC 61249-2-21 - enabling compatibility with lead-free reflow processes and RoHS-compliant manufacturing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - maximum blocking voltage in reverse bias; defines usable input/output voltage range in buck, flyback, and forward converters |
| IF | 3 A - continuous average forward current; sets minimum heatsinking requirement for 100% duty-cycle operation |
| trr | 25 ns - ultra-fast recovery time; minimizes switching losses and EMI in >100 kHz topologies |
| VF | 0.875 V @ 3 A, 25°C - low forward drop improves system efficiency and reduces thermal stress on adjacent components |
| IFSM | 75 A - peak surge rating for 8.3 ms half-sine; withstands inrush and transient overloads without failure |
| RθJL | 11 °C/W - thermal resistance from junction to lead; enables direct PCB copper pour heat sinking without additional heatsink |
Pinout & Package
Package: DO-214AB (SMC), surface-mount plastic case with cathode band marking and matte tin-plated leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in synchronous rectification or transformer secondary center-tap) |
| Cathode | Forward current exit point | Connected to output rail or filter capacitor; marked by visible band for unambiguous orientation during automated placement |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enhances long-term reliability under humidity and thermal cycling; eliminates need for conformal coating in industrial environments |
| Ultra-fast 25 ns recovery | Reduces reverse recovery charge (Qrr) and associated switching loss - critical for >200 kHz PFC and LLC resonant stages |
| J-STD-020 Level 1 moisture sensitivity | Allows indefinite floor life before reflow; eliminates baking step and simplifies SMT line logistics |
| DO-214AB (SMC) footprint | Standardized 7.75 mm × 6.25 mm outline with 2.45 mm height; compatible with existing pick-and-place nozzles and stencil apertures |
Applications
| Server Power Supply Rectification | Telecom DC-DC Converter Output Stage |
|---|---|
Use Scenario: Secondary-side rectification in 48 V input, 12 V/30 A isolated DC-DC modules for data center servers. IC Role / Device Role / Timing Role: Ultra-fast freewheeling diode replacing synchronous MOSFETs where gate drive complexity must be minimized. Use Value: 25 ns trr and 0.875 V VF reduce conduction + switching losses by ~12% vs. standard fast rectifiers, improving full-load efficiency to >94%. | Use Scenario: Output rectification in 3.3 V/20 A point-of-load (POL) converters powering FPGA and ASIC cores in 5G baseband units. IC Role / Device Role / Timing Role: High-frequency clamp diode in active clamp forward topology operating at 300 kHz. Use Value: Low Qrr and 11°C/W RθJL enable stable operation at 150°C junction temperature without derating, supporting compact board area. |
| Industrial PLC Power Input Stage | Automotive ADAS Camera Module PSU |
Use Scenario: Input bridge rectification in 24 V AC/DC front-end supplies for programmable logic controllers with wide ambient temperature range. IC Role / Device Role / Timing Role: Single-phase full-wave rectifier in transformer-isolated offline supply with 175°C max junction rating. Use Value: –55°C to +175°C operating range and halogen-free construction meet EN 61800-5-1 industrial safety and environmental compliance requirements. | Use Scenario: Reverse polarity protection and transient clamping in 12 V automotive camera module power rails exposed to load dump events. IC Role / Device Role / Timing Role: Freewheeling diode across inductive lens actuator drivers and ESD-suppressed power input stage. Use Value: 75 A IFSM withstands ISO 7637-2 Pulse 5a load dump surges; cathode band ensures correct orientation in space-constrained camera PCB layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH3L06S | 600 V VRRM, 3 A IF, 35 ns trr, same DO-214AB package | Higher voltage rating suits 400 V bus designs; slower recovery increases switching loss in >200 kHz circuits | Select when higher reverse voltage margin is required and frequency is ≤150 kHz |
| ES3D-E3/57T | 200 V VRRM, 3 A IF, 35 ns trr, DO-214AB package, 0.92 V VF | Nearly identical voltage/current specs but higher forward drop and longer recovery than MUR320S R7G | Acceptable for cost-sensitive designs where <1% efficiency loss is tolerable and layout allows minor thermal margin |
Compared with STTH3L06S and ES3D-E3/57T, the MUR320S R7G offers the lowest trr (25 ns) and VF (0.875 V) in its 200 V class, making it optimal for high-frequency, high-efficiency power conversion where thermal headroom and EMI control are critical.
Availability
MUR320S R7G is available at Aetrix Electronics and suitable for server power supplies, telecom DC-DC converters, and industrial PLC power stages requiring stable component supply, consistent parametric performance, and full traceability across production batches.
Supply support for MUR320S R7G 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 high-reliability rectifiers, TVS diodes, and MOSFETs for industrial and computing markets.
The MUR320S R7G belongs to TSC's MUR3xS ultra-fast rectifier family, engineered specifically for high-frequency switching power conversion where low recovery charge, tight parameter distribution, and robust thermal performance are mandatory.
FAQ
What is the maximum junction temperature rating for the MUR320S R7G?
The MUR320S R7G has a maximum junction temperature (TJ) rating of +175°C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet. This allows uninterrupted operation in high-ambient environments such as enclosed server chassis or sealed industrial enclosures. The MUR320S R7G maintains stable electrical parameters up to this limit when thermal design respects its 11°C/W junction-to-lead resistance.
Does the MUR320S R7G have a RoHS-compliant and halogen-free construction?
Yes, the MUR320S R7G is RoHS compliant and halogen-free per IEC 61249-2-21, as confirmed in the "Features" section of the Taiwan Semiconductor datasheet. Its molding compound meets UL 94V-0 flammability rating, and terminals are matte tin plated per J-STD-002. These attributes ensure compatibility with lead-free reflow profiles and environmentally regulated end equipment. The MUR320S R7G carries no exemptions under EU RoHS Annex III.
What is the reverse recovery time (trr) specification for the MUR320S R7G, and under what test conditions is it measured?
The MUR320S R7G has a reverse recovery time (trr) of 25 ns, measured under conditions of IF = 0.5 A, IR = 1.0 A, and IRR = 0.25 A, per the Electrical Specifications table in the Taiwan Semiconductor datasheet. This value applies to all MUR305S–MUR320S variants and reflects true ultra-fast behavior essential for minimizing switching loss in high-frequency SMPS. The MUR320S R7G achieves this performance via optimized carrier lifetime control in its epitaxial silicon structure.
Is the MUR320S R7G supplied in tape-and-reel packaging, and what is the standard reel quantity?
Yes, the MUR320S R7G is supplied in tape-and-reel packaging per the Ordering Information section of the datasheet, with 3,000 units per reel. The reel complies with EIA-481-D standards and is compatible with standard SMT pick-and-place equipment. This packaging format ensures mechanical protection, static control, and precise feeding accuracy - critical for high-yield automated assembly of the MUR320S R7G into dense power supply PCBs.
How is polarity indicated on the MUR320S R7G, and what is the physical orientation of anode and cathode?
Polarity on the MUR320S R7G is indicated by a visible cathode band printed on the molded plastic body, per the Marking Diagram in the datasheet. The terminal opposite the band is the anode; the banded terminal is the cathode. This marking aligns with JEDEC DO-214AB mechanical standards and ensures correct orientation during automated optical inspection (AOI) and placement. The MUR320S R7G's cathode-band convention matches industry-standard SMC rectifiers, eliminating risk of reverse-bias installation.
MUR320S R7G 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):
- 200 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 875 mV @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 25 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 200 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
- Operating Temperature - Junction:
- -55°C ~ 175°C
MUR320S R7G FAQ
1.How can I place an order for MUR320S R7G through Aetrix?
Please submit a Request for Quotation (RFQ) for MUR320S R7G 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 MUR320S R7G reliable?
The price and inventory of MUR320S R7G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MUR320S R7G is usually 5 days.
3.What payment methods are accepted for MUR320S R7G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MUR320S R7G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MUR320S R7G?
MUR320S R7G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MUR320S R7G 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 MUR320S R7G?
For technical support, including MUR320S R7G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MUR320S R7G requirements.
6.How does Aetrix verify that MUR320S R7G is sourced from the original manufacturer or authorized distributors?
All MUR320S R7G 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 MUR320S R7G meets industry standards.
7.What is the process for return or replacement of MUR320S R7G?
All MUR320S R7G units undergo pre-shipment inspection (PSI). If there is an issue with MUR320S R7G, 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 MUR320S R7G part is unused and in its original packaging.
Return procedure for MUR320S R7G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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