Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

Taiwan Semiconductor Corporation MUR315S

Name: MUR315S
Brand: Taiwan Semiconductor Corporation
SKU: MUR315S
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: MUR315S

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AB, SMC

Datasheet:: MUR315S.pdf

Description:: DIODE GEN PURP 150V 3A DO214AB

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:3,000

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

MUR315S from Taiwan Semiconductor is a 3A, 150V ultra-fast recovery surface-mount rectifier in DO-214AB (SMC) package, featuring 25ns reverse recovery time, 0.875V forward voltage at 3A/25°C, and 75A peak surge current - deployed in high-frequency switching mode power supplies for telecom infrastructure.

For engineers reviewing the MUR315S datasheet, MUR315S pinout, MUR315S application, or MUR315S equivalent, key selection criteria include V_RRM=150V, t_rr=25ns, I_F=3A, thermal resistance R_θJL=11°C/W, and DO-214AB mechanical compatibility with automated SMT assembly.

Technical Context

The MUR315S employs a glass-passivated silicon junction optimized for ultra-fast switching, enabling efficient freewheeling and output rectification in DC-DC converters operating above 100kHz. Its 25ns reverse recovery time minimizes switching losses during turn-off transitions.

Designed for single-die configuration in DO-214AB (SMC), the device supports continuous forward current up to 3A at 175°C junction temperature and withstands 75A non-repetitive surge current per 8.3ms half-sine waveform - critical for transient load handling in server PSUs.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	150 V - Maximum repetitive reverse voltage the device blocks without breakdown; defines usable input/output voltage range in buck or flyback topologies.
t_rr	25 ns - Ultra-fast reverse recovery time reduces switching loss and EMI generation in high-frequency SMPS designs.
V_F @ 3A, 25°C	0.875 V - Low forward voltage drop improves conduction efficiency and reduces thermal stress at rated DC load.
I_FSM	75 A - Peak surge current rating ensures robustness against inrush and fault transients in industrial power systems.
R_θJL	11 °C/W - Junction-to-lead thermal resistance enables direct PCB copper pour heat sinking without additional heatsinks in 3A applications.
I_R @ 150°C	150 μA - Low high-temperature leakage maintains system reliability in thermally stressed telecom base station environments.

Pinout & Package

Package: DO-214AB (SMC) - Surface-mount plastic package with matte tin-plated leads, UL 94V-0 rated molding compound, and cathode polarity indicated by band.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Input current entry point	Connected to source-side of switching node (e.g., MOSFET drain or transformer secondary); requires low-inductance layout for fast recovery.
Cathode	Output current exit point	Connected to output filter capacitor or load; cathode band marking ensures correct orientation during automated placement.

Key Features

Feature	Design Value
Glass-passivated junction	Enhances long-term reliability and moisture resistance (MSL Level 1), eliminating need for conformal coating in humid environments.
Ultra-fast 25ns recovery	Reduces switching loss by >30% vs. standard fast rectifiers in 300kHz+ converters, directly improving power density.
DO-214AB (SMC) package	Enables high-current SMT assembly with 0.210g weight and JEDEC-compliant footprint for automated pick-and-place compatibility.
RoHS & halogen-free	Meets IEC 61249-2-21 and EU RoHS directives, supporting compliance-critical deployments in networking and enterprise hardware.

Applications

Telecom AC-DC Adapters	Server PSU Output Rectification
Use Scenario: Secondary-side rectification in 1U 1200W server power supplies operating at 250kHz. IC Role / Device Role / Timing Role: Ultra-fast output rectifier replacing Schottky diodes where higher V_RRM and lower leakage are required. Use Value: Enables 150V blocking capability with 25ns t_rr, reducing switching loss while maintaining thermal margin at 3A continuous load.	Use Scenario: Freewheeling path in synchronous buck converters powering ASICs in 5G baseband units. IC Role / Device Role / Timing Role: Asynchronous freewheeling diode ensuring safe current commutation when high-side FET turns off. Use Value: 75A I_FSM rating handles large inductor current surges during transient load steps without failure.
Industrial Motor Drive Snubbers	Automotive ADAS Power Modules
Use Scenario: Clamp diode in IGBT snubber circuits for HVAC inverter drives operating at 10–20kHz. IC Role / Device Role / Timing Role: Fast-recovery clamp element absorbing inductive energy spikes during IGBT turn-off. Use Value: 11°C/W R_θJL allows direct lead-frame thermal coupling to metal-core PCB, sustaining 175°C junction temperature under intermittent overload.	Use Scenario: Input rectification in compact 12V→5V/3.3V DC-DC modules for radar control units. IC Role / Device Role / Timing Role: Primary rectifier in isolated flyback converters meeting AEC-Q101 stress requirements. Use Value: MSL Level 1 rating and JESD201 Class 2 whisker resistance ensure zero-defect SMT yield in automotive production lines.

Telecom AC-DC Adapters

Server PSU Output Rectification

Use Scenario: Secondary-side rectification in 1U 1200W server power supplies operating at 250kHz.

IC Role / Device Role / Timing Role: Ultra-fast output rectifier replacing Schottky diodes where higher V_RRM and lower leakage are required.

Use Value: Enables 150V blocking capability with 25ns t_rr, reducing switching loss while maintaining thermal margin at 3A continuous load.

Use Scenario: Freewheeling path in synchronous buck converters powering ASICs in 5G baseband units.

IC Role / Device Role / Timing Role: Asynchronous freewheeling diode ensuring safe current commutation when high-side FET turns off.

Use Value: 75A I_FSM rating handles large inductor current surges during transient load steps without failure.

Industrial Motor Drive Snubbers

Automotive ADAS Power Modules

Use Scenario: Clamp diode in IGBT snubber circuits for HVAC inverter drives operating at 10–20kHz.

IC Role / Device Role / Timing Role: Fast-recovery clamp element absorbing inductive energy spikes during IGBT turn-off.

Use Value: 11°C/W R_θJL allows direct lead-frame thermal coupling to metal-core PCB, sustaining 175°C junction temperature under intermittent overload.

Use Scenario: Input rectification in compact 12V→5V/3.3V DC-DC modules for radar control units.

IC Role / Device Role / Timing Role: Primary rectifier in isolated flyback converters meeting AEC-Q101 stress requirements.

Use Value: MSL Level 1 rating and JESD201 Class 2 whisker resistance ensure zero-defect SMT yield in automotive production lines.

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	V_RRM=60V, t_rr=35ns, V_F=0.95V @3A - lower voltage rating and slower recovery than MUR315S.	Suitable only for ≤60V output rails; not interchangeable in 150V telecom rectification.	Select when V_RRM margin <100V is acceptable and cost sensitivity outweighs efficiency loss.
ON Semi MUR315	Same V_RRM/t_rr/I_F specs but DO-214AC (SMA) package - smaller footprint, higher thermal resistance (15°C/W).	Requires PCB redesign due to different pad layout and reduced thermal performance at 3A.	Choose only if space constraints prohibit DO-214AB and thermal derating to 2.2A is acceptable.

Compared with STTH3L06S and ON Semi MUR315, the MUR315S uniquely balances 150V blocking, 25ns speed, and DO-214AB thermal robustness - making it optimal for high-density, high-efficiency 3A rectification where both voltage headroom and thermal management are critical.

Availability

MUR315S is available at Aetrix Electronics and suitable for telecom AC-DC adapters, server PSU output rectification, and industrial motor drive snubbers requiring stable component supply across multi-year production cycles.

Supply support for MUR315S 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 power electronics markets since 1979.

The MUR315S belongs to TSC's ultra-fast rectifier product line, engineered specifically for high-frequency switching power conversion in telecom, computing, and industrial systems demanding low-loss, high-reliability rectification.

FAQ

What is the maximum junction temperature rating for the MUR315S?

The MUR315S has a maximum junction temperature (T_J) rating of +175°C, verified per absolute maximum ratings table. This allows operation in thermally constrained environments such as sealed telecom enclosures or high-ambient industrial settings. Derating curves confirm 3A continuous current is sustainable up to 125°C ambient when mounted on ≥1in² 2oz copper. The MUR315S must be operated within this limit to maintain reliability and avoid parametric shift.

Does the MUR315S have a halogen-free and RoHS-compliant construction?

Yes, the MUR315S is certified halogen-free per IEC 61249-2-21 and RoHS compliant per EU Directive 2011/65/EU. The molding compound contains no brominated flame retardants, and the matte tin-plated leads meet J-STD-002 solderability standards. These specifications are documented in the mechanical data section of the official Taiwan Semiconductor datasheet revision J2212, confirming suitability for environmentally regulated end equipment including networking gear and enterprise servers.

What is the reverse recovery time (t_rr) of the MUR315S and under what test conditions is it specified?

The MUR315S has a reverse recovery time (t_rr) of 25ns, measured under conditions of I_F = 0.5A, I_R = 1.0A, and I_RR = 0.25A per the electrical specifications table. This value applies to all variants from MUR305S through MUR320S and is confirmed in the "ELECTRICAL SPECIFICATIONS" section of the J2212 datasheet. It reflects the device's ultra-fast switching behavior essential for minimizing turn-off losses in high-frequency SMPS.

Is the MUR315S suitable for use in automotive applications?

The MUR315S is not qualified to AEC-Q101 and lacks automotive-specific qualification documentation. While its 175°C T_J rating and MSL Level 1 handling support harsh environments, Taiwan Semiconductor does not list it in automotive-grade product families. For ADAS or infotainment power modules, designers should verify qualification status directly with TSC or select an AEC-Q101-certified alternative. The MUR315S remains appropriate for industrial and telecom applications per its published specifications.

What packaging format is available for the MUR315S and how many units are included per reel?

The MUR315S is supplied in DO-214AB (SMC) package on tape-and-reel format, with 3,000 units per reel, as stated in the "ORDERING INFORMATION" section of the datasheet. This packaging supports high-speed automated placement in SMT lines and complies with EIA-481 standards. No alternate packaging (e.g., bulk or ammo pack) is listed for this part number in the official Taiwan Semiconductor documentation.

MUR315S Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-214AB, SMC

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 150 V

Current - Average Rectified (Io):: 3A

Voltage - Forward (Vf) (Max) @ If:: -

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

Reverse Recovery Time (trr):: 25 ns

Current - Reverse Leakage @ Vr:: 5 µA @ 150 V

Capacitance @ Vr, F:: -

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

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

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

MUR315S FAQ

1.How can I place an order for MUR315S through Aetrix?

Please submit a Request for Quotation (RFQ) for MUR315S 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 MUR315S reliable?

The price and inventory of MUR315S are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MUR315S is usually 5 days.

3.What payment methods are accepted for MUR315S?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MUR315S transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MUR315S?

MUR315S orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MUR315S 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 MUR315S?

For technical support, including MUR315S datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MUR315S requirements.

6.How does Aetrix verify that MUR315S is sourced from the original manufacturer or authorized distributors?

All MUR315S 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 MUR315S meets industry standards.

7.What is the process for return or replacement of MUR315S?

All MUR315S units undergo pre-shipment inspection (PSI). If there is an issue with MUR315S, 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 MUR315S part is unused and in its original packaging.

Return procedure for MUR315S:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-09 Counterfeit Electronic Components: How to Detect, Authenticate, and Test Suspect Parts

Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …

2026-09-08 Obsolete Electronic Components: How to Source and Evaluate Replacements

A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…