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

Taiwan Semiconductor Corporation MUR310S R7G

Name: MUR310S R7G
Brand: Taiwan Semiconductor Corporation
SKU: MUR310S R7G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MUR310S R7G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AB, SMC

Datasheet:: MUR310S R7G.pdf

Description:: DIODE GEN PURP 100V 3A DO214AB

Quantity:: RFQ Add To RFQ list

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Inventory:9,449

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Product details

Overview

MUR310S R7G from Taiwan Semiconductor is an ultra-fast recovery surface-mount rectifier diode rated for 3A average forward current and 100V repetitive peak reverse voltage, with 25ns reverse recovery time and 0.875V forward voltage at 3A/25°C, used in high-frequency switching mode power supplies for telecom and computing equipment.

For engineers reviewing the MUR310S R7G datasheet, MUR310S R7G pinout, MUR310S R7G application, or MUR310S R7G equivalent, key selection criteria include V_RRM, t_rr, V_F, I_FSM, and DO-214AB (SMC) package compatibility in space-constrained SMPS designs.

Technical Context

This single-die, glass-passivated silicon rectifier delivers ultra-fast switching performance optimized for high-efficiency DC-DC conversion and freewheeling paths where low forward voltage drop and minimal reverse recovery charge are critical. Its 25ns t_rr enables operation up to several hundred kHz without excessive switching losses.

The device operates across –55°C to +175°C junction temperature range and features matte tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance, supporting automated SMT assembly in industrial and telecom power systems.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	100 V - Maximum non-repetitive reverse blocking voltage before breakdown
I_F	3 A - Continuous average forward current at T_L = 75°C on FR-4 PCB
t_rr	25 ns - Time to recover from conduction to full blocking state under specified test conditions
V_F	0.875 V @ 3A, 25°C - Forward voltage drop directly impacting conduction loss and thermal design
I_FSM	75 A - Peak non-repetitive surge current capability during startup or fault transients
R_θJL	11 °C/W - Junction-to-lead thermal resistance enabling accurate thermal modeling in lead-frame mounted layouts

Pinout & Package

Package: DO-214AB (SMC), surface-mount plastic case with cathode band marking; dimensions per JEDEC DO-214AB Issue D; weight ≈ 0.210 g.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential side of load or switch node in freewheeling path
Cathode	Forward current exit point	Marked by band; connected to higher-potential rail or output capacitor positive terminal

Key Features

Feature	Design Value
Glass passivated junction	Enhances long-term reliability and moisture resistance in humid environments
Ultra-fast 25 ns recovery	Reduces switching losses and EMI generation in >100 kHz SMPS topologies
DO-214AB (SMC) package	Supports high-current density mounting with low thermal resistance to PCB copper
J-STD-020 Level 1 moisture sensitivity	Enables standard SMT reflow without baking or special handling

Applications

Telecom AC-DC Adapters	Server VRM Output Rectification
Use Scenario: Secondary-side rectification in 50–200W isolated flyback or LLC converters powering telecom line cards. IC Role / Device Role / Timing Role: Ultra-fast output rectifier replacing slower standard diodes to minimize conduction and recovery losses. Use Value: 25ns t_rr and 0.875V V_F reduce total power loss by ~15% vs. standard fast recovery diodes at 100kHz.	Use Scenario: Synchronous rectifier companion or freewheeling diode in multiphase buck converters for CPU/GPU VRMs. IC Role / Device Role / Timing Role: Freewheeling path clamp during high-side MOSFET off-time in non-synchronous configurations. Use Value: Low V_F and fast t_rr maintain efficiency above 90% while limiting voltage overshoot during dead-time transitions.
Industrial PLC Power Supplies	Networking Switch DC-DC Modules
Use Scenario: Input rectification stage in wide-input-range (85–265VAC) offline PSUs for programmable logic controllers. IC Role / Device Role / Timing Role: Bridge leg or output rectifier handling continuous 3A loads with transient surges up to 75A. Use Value: 175°C max junction temperature and 75A I_FSM ensure robustness against inrush and short-circuit events.	Use Scenario: Point-of-load (POL) converter output rectification in 1U rack-mounted Ethernet switches. IC Role / Device Role / Timing Role: High-density surface-mount rectifier in thermally constrained 12V/5V/3.3V DC-DC modules. Use Value: DO-214AB footprint allows compact layout while R_θJL = 11°C/W supports thermal management without heatsinks.

Telecom AC-DC Adapters

Server VRM Output Rectification

Use Scenario: Secondary-side rectification in 50–200W isolated flyback or LLC converters powering telecom line cards.

IC Role / Device Role / Timing Role: Ultra-fast output rectifier replacing slower standard diodes to minimize conduction and recovery losses.

Use Value: 25ns t_rr and 0.875V V_F reduce total power loss by ~15% vs. standard fast recovery diodes at 100kHz.

Use Scenario: Synchronous rectifier companion or freewheeling diode in multiphase buck converters for CPU/GPU VRMs.

IC Role / Device Role / Timing Role: Freewheeling path clamp during high-side MOSFET off-time in non-synchronous configurations.

Use Value: Low V_F and fast t_rr maintain efficiency above 90% while limiting voltage overshoot during dead-time transitions.

Industrial PLC Power Supplies

Networking Switch DC-DC Modules

Use Scenario: Input rectification stage in wide-input-range (85–265VAC) offline PSUs for programmable logic controllers.

IC Role / Device Role / Timing Role: Bridge leg or output rectifier handling continuous 3A loads with transient surges up to 75A.

Use Value: 175°C max junction temperature and 75A I_FSM ensure robustness against inrush and short-circuit events.

Use Scenario: Point-of-load (POL) converter output rectification in 1U rack-mounted Ethernet switches.

IC Role / Device Role / Timing Role: High-density surface-mount rectifier in thermally constrained 12V/5V/3.3V DC-DC modules.

Use Value: DO-214AB footprint allows compact layout while R_θJL = 11°C/W supports thermal management without heatsinks.

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	Same 100V V_RRM, 3A I_F, but t_rr = 35ns and V_F = 0.95V @ 3A	Slightly higher conduction and switching loss; less suitable for >150kHz designs	Acceptable where margin exists in thermal budget and frequency is ≤120kHz
ES3J	100V V_RRM, 3A I_F, t_rr = 35ns, V_F = 0.87V - near-identical V_F but slower recovery	Higher reverse recovery charge increases EMI and reduces efficiency at high frequency	Preferred only when cost sensitivity outweighs efficiency requirements in <100kHz applications

Compared with STTH3L06S and ES3J, the MUR310S R7G delivers superior high-frequency efficiency due to its 25ns t_rr and tighter V_F spec, making it optimal for compact, high-efficiency telecom and server power supplies where thermal headroom is limited.

Availability

MUR310S R7G is available at Aetrix Electronics and suitable for telecom AC-DC adapters, server VRM output rectification, and industrial PLC power supplies requiring stable component supply and consistent DO-214AB packaging.

Supply support for MUR310S 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 power rectifiers, TVS devices, and MOSFETs.

The MUR310S R7G belongs to TSC's MUR3xS ultra-fast rectifier family, engineered specifically for high-frequency switching power conversion in computing, telecom, and industrial equipment where low V_F and fast t_rr are essential.

FAQ

What is the maximum junction temperature rating for MUR310S R7G?

The MUR310S R7G has a maximum junction temperature (T_J) rating of +175°C, allowing reliable operation in high-ambient industrial and telecom power supply environments. This rating is validated under specified thermal conditions and must be maintained via proper PCB copper area and airflow. Thermal derating curves in the official datasheet define safe operating current limits at elevated temperatures. The MUR310S R7G must not exceed this limit during steady-state or transient operation.

Does MUR310S R7G have RoHS and halogen-free compliance?

Yes, the MUR310S R7G is RoHS compliant and halogen-free per IEC 61249-2-21. These certifications are confirmed in Taiwan Semiconductor's official documentation for the MUR3xS series. The device uses green molding compound and matte tin-plated leads, meeting environmental and safety standards required for global electronics manufacturing. Compliance applies to the MUR310S R7G as shipped and does not require additional customer verification.

What is the reverse recovery time (t_rr) of MUR310S R7G and how is it measured?

The MUR310S R7G has a typical reverse recovery time (t_rr) of 25 ns, measured under conditions of I_F = 0.5 A, I_R = 1.0 A, and I_RR = 0.25 A per the manufacturer's test setup. This value reflects the time required for the diode to transition from forward conduction to full reverse blocking. The MUR310S R7G achieves this performance through optimized silicon doping and processing, enabling efficient operation in high-frequency SMPS designs.

Is MUR310S R7G compatible with standard reflow soldering processes?

Yes, the MUR310S R7G is rated at Moisture Sensitivity Level 1 per J-STD-020, meaning it can be subjected to standard Pb-free reflow profiles without pre-baking. Its DO-214AB (SMC) package and matte tin-plated leads meet J-STD-002 solderability requirements. The MUR310S R7G is designed for automated placement and reflow, supporting high-yield SMT assembly in volume production environments.

What does the "R7G" suffix indicate in MUR310S R7G?

The "R7G" suffix in MUR310S R7G denotes tape-and-reel packaging: "R7" indicates 3,000 units per reel, and "G" signifies green (halogen-free) compound per IEC 61249-2-21. This coding aligns with Taiwan Semiconductor's standard ordering nomenclature for the MUR3xS series. The MUR310S R7G is supplied in DO-214AB (SMC) package on 3,000-unit reels with RoHS-compliant, halogen-free construction.

MUR310S 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):: 100 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 @ 100 V

Capacitance @ Vr, F:: -

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: DO-214AB (SMC)

Operating Temperature - Junction:: -55°C ~ 175°C

MUR310S R7G FAQ

1.How can I place an order for MUR310S R7G through Aetrix?

Please submit a Request for Quotation (RFQ) for MUR310S 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 MUR310S R7G reliable?

The price and inventory of MUR310S R7G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MUR310S R7G is usually 5 days.

3.What payment methods are accepted for MUR310S R7G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MUR310S R7G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MUR310S R7G?

MUR310S R7G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MUR310S 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 MUR310S R7G?

For technical support, including MUR310S R7G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MUR310S R7G requirements.

6.How does Aetrix verify that MUR310S R7G is sourced from the original manufacturer or authorized distributors?

All MUR310S 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 MUR310S R7G meets industry standards.

7.What is the process for return or replacement of MUR310S R7G?

All MUR310S R7G units undergo pre-shipment inspection (PSI). If there is an issue with MUR310S 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 MUR310S R7G part is unused and in its original packaging.

Return procedure for MUR310S R7G:

1.Submit a request within 90 days.

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

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