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

Diodes Incorporated MURS120-13-F

Name: MURS120-13-F
Brand: Diodes Incorporated
SKU: MURS120-13-F
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MURS120-13-F

Manufacturer:: Diodes Incorporated

Category:: Single Diodes

Package:: DO-214AA, SMB

Datasheet:: MURS120-13-F.pdf

Description:: DIODE GEN PURP 200V 1A SMB

Quantity:: RFQ Add To RFQ list

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Inventory:44,977

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Product details

Overview

MURS120-13-F from Diodes Incorporated is a 1.0A, 200V surface-mount super-fast rectifier diode in SMB package, featuring 25ns reverse-recovery time, 0.875V forward voltage at 1.0A/25°C, and 40A non-repetitive surge rating-designed for high-frequency switching power supplies, DC-DC converters, and automotive auxiliary power rails.

For engineers reviewing the MURS120-13-F datasheet, MURS120-13-F pinout, MURS120-13-F application, or MURS120-13-F equivalent, key selection criteria include fast recovery performance (t_RR = 25 ns), thermal resistance (R_θJT = 15 °C/W), RoHS-compliant matte tin plating, and AEC-Q101 readiness for automotive-grade reliability validation.

Technical Context

This super-fast rectifier employs glass-passivated silicon die construction to achieve stable junction behavior under repetitive surge stress and elevated temperature operation up to +175°C. Its low 27 pF junction capacitance and tight 0.710V V_F at 1.0A/150°C support efficient high-frequency rectification in compact power stages.

The device operates with cathode-band polarity identification and is rated for 141V RMS reverse voltage. It complies with J-STD-020 moisture sensitivity Level 1 and supports automated SMT assembly via solderable matte tin terminals per MIL-STD-202 Method 208.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	200 V - Maximum peak repetitive reverse voltage before breakdown; sets usable input voltage headroom in 12–48V DC-DC front-ends.
I_O	1.0 A - Average rectified output current at T_T = +135°C; defines continuous conduction capability in thermally constrained layouts.
t_RR	25 ns - Reverse recovery time measured at I_F = 0.5A, I_R = 1.0A; enables >1 MHz switching without excessive switching loss or ringing.
V_FM	0.875 V @ 1.0A/25°C - Forward voltage drop; directly determines conduction loss (0.875W @ 1A) and thermal rise in PCB-mounted applications.
I_FSM	40 A - Non-repetitive peak forward surge current (8.3ms half-sine); withstands inrush and fault currents in automotive load-dump scenarios.
R_θJT	15 °C/W - Junction-to-terminal thermal resistance with 5.0 mm² copper pad heatsink; enables accurate junction temperature estimation for reliability margining.
C_T	27 pF @ 1 MHz, 4V reverse bias - Low junction capacitance minimizes capacitive coupling and EMI generation in high-dv/dt environments.

Pinout & Package

Package: SMB (Surface-Mount Small Outline), molded plastic body with UL 94V-0 flammability rating, cathode identified by band or notch, weight ≈ 0.093 g.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential side of AC source or switch node; requires adequate trace width for 1.0A continuous current.
Cathode	Forward current exit / reverse blocking terminal	Marked with band/notch; ties to output rail or positive bus; critical for correct polarity in flyback/freewheeling paths.

Key Features

Feature	Design Value
Glass passivated die	Enhances long-term stability of reverse leakage and breakdown voltage under humidity and thermal cycling stress.
Super-fast 25 ns t_RR	Reduces switching loss and EMI in high-frequency SMPS designs operating above 300 kHz.
40A I_FSM surge rating	Supports robustness against line transients and hot-plug events in automotive and industrial 12V/24V systems.
RoHS-compliant matte tin plating	Enables lead-free reflow compatibility and eliminates intermetallic growth concerns during multiple thermal cycles.
AEC-Q101 readiness	Facilitates qualification path for automotive applications requiring PPAP documentation and IATF 16949 manufacturing control.

Applications

Switch-Mode Power Supply Output Rectification

Automotive Auxiliary Power Conversion

Use Scenario: Secondary-side rectification in 30–100W isolated DC-DC converters for telecom and industrial equipment.

IC Role / Device Role / Timing Role: Freewheeling diode conducting during MOSFET off-time; critical for energy transfer efficiency and voltage regulation accuracy.

Use Value: 25 ns t_RR and 0.875V V_F minimize conduction + switching losses, enabling >92% efficiency at 500 kHz switching frequency.

Use Scenario: 12V-to-5V/3.3V buck-derived auxiliary supply in engine control units and infotainment modules.

IC Role / Device Role / Timing Role: Output rectifier handling pulsed load currents up to 1.0A with transient surges during cold-crank conditions.

Use Value: 40A I_FSM and -55°C to +175°C operating range ensure reliable operation across automotive temperature extremes and load dump events.

High-Frequency DC-DC Converter Freewheeling

LED Driver Secondary Rectification

Use Scenario: Synchronous rectifier replacement in compact 12V input, 5V/2A buck-boost converters for portable medical devices.

IC Role / Device Role / Timing Role: Uncontrolled freewheeling path during high-side switch off-phase; defines minimum on-time and ripple characteristics.

Use Value: Low 27 pF C_T reduces capacitive feedthrough noise into feedback networks, improving regulation stability at >1 MHz.

Use Scenario: Constant-current LED string supply in automotive exterior lighting with PWM dimming.

IC Role / Device Role / Timing Role: Output rectifier in flyback topology delivering regulated DC to LED loads with dynamic current steps.

Use Value: Stable 2.0 µA I_R at 25°C ensures minimal dark-current leakage during PWM off-cycles, preserving dimming linearity.

Equivalent & Alternatives

The following parts are listed as comparable options for similar super-fast rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STPS1H100SF	Same SMB package, 100V V_RRM, 35 ns t_RR, higher V_F (0.95V)	Limited to ≤100V systems; less suitable for 200V input derated designs	Select when lower cost is prioritized over recovery speed and voltage margin.
MBRS1200T3G	Same 200V rating, but SOD-123FL package, 35 ns t_RR, 0.82V V_F at 1A	Smaller footprint but lower surge rating (30A I_FSM) and no AEC-Q101 path	Prefer for space-constrained consumer designs where automotive qualification is not required.

Compared with STPS1H100SF and MBRS1200T3G, MURS120-13-F delivers superior 25 ns recovery speed and 40A surge capability in an AEC-Q101-aligned SMB package-making it optimal for automotive and high-reliability industrial power conversion where fast switching and transient robustness are jointly critical.

Availability

MURS120-13-F is available at Aetrix Electronics and suitable for automotive power management, industrial DC-DC converters, and LED driver secondary rectification requiring stable component supply across extended temperature and surge conditions.

Supply support for MURS120-13-F 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.

The MURS series belongs to Diodes' high-performance rectifier product line, engineered specifically for high-efficiency, high-frequency power conversion in automotive, industrial, and computing applications where fast recovery and thermal resilience are essential.

FAQ

Is MURS120-13-F qualified to AEC-Q101?

No, MURS120-13-F is not AEC-Q101 certified out-of-box, but Diodes Incorporated confirms it is manufactured in IATF 16949-certified facilities and supports PPAP documentation upon request for automotive customers. Full qualification requires customer-led testing per AEC-Q101 stress test conditions.

What is the maximum PCB copper pad area recommended for thermal performance?

Per datasheet Note 5, a 5.0 mm² (0.013 mm thick) copper pad per terminal is specified for R_θJT = 15 °C/W measurement. Increasing pad area beyond this improves thermal dissipation but does not linearly reduce R_θJT; thermal simulation is advised for layouts exceeding 1.0A continuous current.

Can MURS120-13-F replace MURS160 in a 100V design?

No-MURS160 has 600V V_RRM, while MURS120-13-F is rated only to 200V. Substituting it in a 600V circuit risks catastrophic reverse breakdown. For 100V designs, MURS120-13-F is over-specified on voltage but offers faster t_RR (25 ns vs. 35 ns for MURS160) and lower V_F.

Does the "-13-F" suffix indicate tape-and-reel packaging?

Yes-the "-13-F" suffix denotes SMB package in 3000-piece tape-and-reel format per Diodes' ordering nomenclature. The "-F" indicates RoHS-compliant matte tin plating, and "-13" specifies the standard reel packing configuration for SMB devices.

MURS120-13-F Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: DO-214AA, SMB

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 200 V

Current - Average Rectified (Io):: 1A

Voltage - Forward (Vf) (Max) @ If:: 875 mV @ 1 A

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

Reverse Recovery Time (trr):: 25 ns

Current - Reverse Leakage @ Vr:: 2 µA @ 200 V

Capacitance @ Vr, F:: 27pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SMB

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

MURS120-13-F FAQ

1.How can I place an order for MURS120-13-F through Aetrix?

Please submit a Request for Quotation (RFQ) for MURS120-13-F 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 MURS120-13-F reliable?

The price and inventory of MURS120-13-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MURS120-13-F is usually 5 days.

3.What payment methods are accepted for MURS120-13-F?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MURS120-13-F transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MURS120-13-F?

MURS120-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MURS120-13-F 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 MURS120-13-F?

For technical support, including MURS120-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MURS120-13-F requirements.

6.How does Aetrix verify that MURS120-13-F is sourced from the original manufacturer or authorized distributors?

All MURS120-13-F 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 MURS120-13-F meets industry standards.

7.What is the process for return or replacement of MURS120-13-F?

All MURS120-13-F units undergo pre-shipment inspection (PSI). If there is an issue with MURS120-13-F, 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 MURS120-13-F part is unused and in its original packaging.

Return procedure for MURS120-13-F:

1.Submit a request within 90 days.

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

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