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

SMC Diode Solutions MBR1035

Name: MBR1035
Brand: SMC Diode Solutions
SKU: MBR1035
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MBR1035

Manufacturer:: SMC Diode Solutions

Category:: Single Diodes

Package:: TO-220-2

Datasheet:: MBR1035.pdf

Description:: DIODE SCHOTTKY 35V 10A TO220AC

Quantity:: RFQ Add To RFQ list

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Inventory:546

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Product details

Overview

MBR1035 from Diodes Incorporated is a 10A, 35V Schottky barrier rectifier in TO-220AC package, designed for low-voltage, high-frequency DC/DC conversion, freewheeling, and polarity protection. It delivers 0.57V forward voltage at 10A and 125°C, supports 150A non-repetitive surge current, and features guard ring die construction for transient robustness in power supply rails.

For engineers reviewing the MBR1035 datasheet, MBR1035 pinout, MBR1035 application, or MBR1035 equivalent, this page provides verified electrical parameters, thermal derating behavior, real-world use cases in switching power supplies and battery protection circuits, and validated alternative parts with documented voltage/current trade-offs.

Technical Context

This Schottky rectifier operates with zero minority-carrier storage, enabling fast recovery (no reverse recovery time) and minimal switching loss in high-frequency SMPS topologies. Its low R_θJC of 2.5°C/W allows direct heatsink mounting for sustained 10A conduction at T_C = 125°C.

The device uses planar epitaxial construction with guard ring termination to suppress edge breakdown under transient overvoltage. Total capacitance is 400pF at 4V reverse bias and 1MHz, supporting stable operation in buck converter output stages and OR-ing configurations.

Key Specifications

Parameter	Value and Actual Design Meaning
Peak Reverse Voltage	35 V - Maximum blocking capability before avalanche; sets upper limit for input voltage in DC/DC converters.
Forward Voltage @ 10A, 125°C	0.57 V - Low conduction loss enables >92% efficiency in 5–12V output stages at full load.
Avg. Rectified Current @ T_C=125°C	10 A - Sustained DC current rating when case temperature is held at 125°C via heatsink.
Non-Repetitive Surge Current	150 A (8.3ms half-sine) - Withstands inrush and fault currents in motor drives and UPS systems.
Thermal Resistance J-to-C	2.5 °C/W - Enables precise thermal design: ΔT = 25°C rise at 10W dissipation with adequate heatsinking.
Reverse Leakage @ 125°C	15 mA - Higher than room-temp value but manageable in thermally controlled environments.
Total Capacitance @ 4V, 1MHz	400 pF - Limits high-frequency noise coupling; suitable for <1 MHz switching applications.

Pinout & Package

Package: TO-220AC - Molded plastic case with tin-plated terminals, UL 94V-0 rated, 2.24g weight, intended for through-hole mounting and heatsink attachment via tab (cathode-connected).

Pin/Terminal	Circuit Role	Design Meaning
1 (Anode)	Input terminal for forward conduction	Connected to source side (e.g., switch node or battery +); must be routed with low-inductance trace.
2 (Cathode / Tab)	Output terminal and thermal path	Electrically and thermally connected to metal tab; requires insulating washer if heatsink is grounded.
3 (Cathode)	Secondary cathode connection	Provides redundant low-impedance return path; tied internally to pin 2 and tab.

Key Features

Feature	Design Value
Guard ring die construction	Suppresses edge breakdown during voltage transients, improving reliability in automotive load-dump conditions.
Low forward voltage (0.57V @ 10A/125°C)	Reduces conduction loss by ~35% vs. comparable silicon diodes, lowering thermal stress in compact enclosures.
High surge capability (150A)	Supports repeated cold-start events in industrial power modules without degradation.
TO-220AC package with tin finish	Enables RoHS-compliant reflow or hand-soldering per MIL-STD-202 Method 208; compatible with standard clip-on heatsinks.

Applications

DC/DC Converter Output Rectification

Battery Polarity Protection

Use Scenario: Used as secondary-side rectifier in 12V-input, 5V-output synchronous buck converter operating at 300 kHz.

IC Role / Device Role: Unidirectional current path with minimal V_F drop to maximize efficiency and minimize heat generation.

Use Value: 0.57V V_F at full load reduces power loss to 5.7W vs. 11W for a 1.1V Si diode, easing thermal management.

Use Scenario: Placed in series with Li-ion battery pack positive line to prevent damage from reverse insertion.

IC Role / Device Role: Forward-biased conduction path during correct polarity; blocks reverse current during misconnection.

Use Value: 15 mA leakage at 125°C ensures <1% self-discharge rate over 30-day storage at elevated ambient.

Freewheeling Diode in Motor Drive

OR-ing Diode in Dual-Supply Systems

Use Scenario: Connected across brushed DC motor winding to clamp inductive kickback during PWM turn-off.

IC Role / Device Role: Provides low-loss recirculation path for stored inductive energy.

Use Value: Fast zero-recovery eliminates switching spikes, reducing EMI filter burden and MOSFET voltage stress.

Use Scenario: Employed in redundant 24V power supply system to isolate faults and enable seamless switchover.

IC Role / Device Role: Enables automatic selection of higher-voltage supply while blocking reverse current from lower-voltage rail.

Use Value: 400pF capacitance minimizes cross-talk between supplies; 35V rating accommodates 28V nominal + tolerance.

Equivalent & Alternatives

The following parts are listed as comparable options for similar Schottky rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
Vishay VS-MBR1035CT	Common-cathode dual-die configuration; same V_RRM, V_F, I_O, but 2-pin TO-220AB package.	Requires different PCB footprint and single-cathode routing; suited for dual-output or interleaved designs.	Select when dual-diode integration simplifies layout or enables shared cathode return paths.
ON Semiconductor M1035	Identical ratings and TO-220AC package; slightly higher V_F (0.59V @ 10A/125°C) and 12 mA IR at 125°C.	No footprint or thermal change; minor efficiency penalty (~0.2% at full load) acceptable in cost-sensitive designs.	Select when second-source assurance is required and 0.02V V_F increase is tolerable.

Compared with VS-MBR1035CT and M1035, the MBR1035 offers optimal single-diode performance in standard TO-220AC layout, balancing lowest V_F, proven surge robustness, and direct heatsink compatibility without dual-die complexity or marginal V_F trade-offs.

Availability

MBR1035 is available at Aetrix Electronics and suitable for DC/DC converter output rectification, battery polarity protection, freewheeling in motor drives, and OR-ing in redundant power systems requiring stable component supply despite its obsolete status.

Supply support for MBR1035 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, specializing in high-efficiency power management and signal integrity solutions.

The MBR1030–MBR1050 series targets cost-sensitive, high-reliability power conversion in industrial, computing, and consumer applications where low forward drop and surge resilience are critical.

FAQ

Is MBR1035 still in production?

No - Diodes Incorporated discontinued the MBR1035 as of June 2015 (DS23009 Rev. 11-4). However, Aetrix Electronics maintains legacy inventory with full traceability and offers lifecycle coordination support including last-time buy planning and cross-reference guidance.

Can MBR1035 replace MBR1045 in a 45V-rated circuit?

No - MBR1035 has a 35V peak reverse voltage rating. Using it in a 45V circuit risks avalanche breakdown and premature failure. The MBR1045 (45V) or MBR1050 (50V) must be used where blocking voltage exceeds 35V.

What is the correct mounting orientation for thermal performance?

The metal tab (pin 2/cathode) must be mounted directly to a heatsink using thermal compound and mechanical pressure. Insulating washers are required if the heatsink is grounded. Pin 1 (anode) and pin 3 (cathode) are electrically isolated from the tab only by internal die bonding - no additional isolation is needed between pins 2 and 3.

Does MBR1035 require derating for capacitive loads?

Yes - Diodes Incorporated specifies a 20% current derating for capacitive loads due to high inrush current. At 10A rated average current, limit continuous conduction to 8A when feeding bulk capacitance directly, unless soft-start or inrush limiting is implemented upstream.

MBR1035 Specifications

Product attributes: Attribute value

Manufacturer:: SMC Diode Solutions

Series:: -

Package/Case:: TO-220-2

Packaging:: Tube

Product Status:: Active

Technology:: Schottky

Voltage - DC Reverse (Vr) (Max):: 35 V

Current - Average Rectified (Io):: 10A

Voltage - Forward (Vf) (Max) @ If:: 840 mV @ 10 A

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

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 100 µA @ 35 V

Capacitance @ Vr, F:: 750pF @ 5V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220AC

Operating Temperature - Junction:: -55°C ~ 150°C

MBR1035 FAQ

1.How can I place an order for MBR1035 through Aetrix?

Please submit a Request for Quotation (RFQ) for MBR1035 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 MBR1035 reliable?

The price and inventory of MBR1035 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBR1035 is usually 5 days.

3.What payment methods are accepted for MBR1035?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBR1035 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MBR1035?

MBR1035 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MBR1035 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 MBR1035?

For technical support, including MBR1035 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBR1035 requirements.

6.How does Aetrix verify that MBR1035 is sourced from the original manufacturer or authorized distributors?

All MBR1035 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 MBR1035 meets industry standards.

7.What is the process for return or replacement of MBR1035?

All MBR1035 units undergo pre-shipment inspection (PSI). If there is an issue with MBR1035, 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 MBR1035 part is unused and in its original packaging.

Return procedure for MBR1035:

1.Submit a request within 90 days.

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

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