My Inquiry
My Account
Vishay General Semiconductor - Diodes Division MBR735-E3/45
- Part No.:
- MBR735-E3/45
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Single Diodes
- Package:
- TO-220-2
- Datasheet:
-
MBR735-E3/45.pdf
- Description:
- DIODE SCHOTTKY 35V 7.5A TO220AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,258
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MBR735-E3/45 from Vishay General Semiconductor is a 45 V, 7.5 A average forward current Schottky barrier rectifier in TO-220AC package, featuring 0.57 V forward voltage at 7.5 A and 125 °C junction temperature, guardring for overvoltage protection, and high-frequency operation - used in DC/DC converters and polarity protection circuits.
For engineers reviewing the MBR735-E3/45 datasheet, MBR735-E3/45 pinout, MBR735-E3/45 application, or MBR735-E3/45 equivalent, key selection criteria include forward voltage drop at rated current and temperature, peak surge capability, thermal resistance, reverse leakage at elevated temperature, and TO-220AC mechanical compatibility with heatsink mounting.
Technical Context
This device implements a single-die Schottky barrier structure optimized for low VF and fast switching, with guardring integration to enhance ruggedness against transient overvoltage events. Its 3.0 °C/W junction-to-case thermal resistance enables efficient heat transfer when mounted to a heatsink under continuous 7.5 A load.
The MBR735-E3/45 operates within a -65 °C to +150 °C junction temperature range and supports 150 A non-repetitive peak forward surge current (8.3 ms half-sine), making it suitable for high-efficiency, high-reliability power conversion stages where low conduction loss and fast recovery are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 45 V maximum repetitive peak reverse voltage - defines safe DC blocking capability in polarity protection or freewheeling paths |
| IF(AV) | 7.5 A average forward rectified current - continuous DC output capability at TC = 25 °C with proper heatsinking |
| VF | 0.57 V at IF = 7.5 A, TJ = 125 °C - directly reduces conduction loss and improves system efficiency in high-temp operation |
| IFSM | 150 A peak forward surge current (8.3 ms) - withstands inrush and transient overload without failure |
| RθJC | 3.0 °C/W typical junction-to-case thermal resistance - enables predictable thermal design with standard TO-220AC heatsink interfaces |
| TJ max. | +150 °C maximum operating junction temperature - supports extended reliability in compact, thermally constrained enclosures |
| IR | 15 mA reverse current at VR = 45 V, TJ = 125 °C - quantifies leakage-induced power loss in high-temp standby modes |
Pinout & Package
Package: TO-220AC - insulated case, single-ended vertical lead configuration, matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, rated for 275 °C solder bath (10 s).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Anode) | Anode connection | Main current entry point; electrically connected to metal tab in TO-220AC package - requires electrical isolation if mounted to heatsink |
| Pin 2 (Cathode) | Cathode connection | Main current exit point; tied to internal die cathode metallization - serves as primary output node in rectification path |
Key Features
| Feature | Design Value |
|---|---|
| Guardring overvoltage protection | Enhances ruggedness against transient voltage spikes without external snubbers in SMPS freewheeling paths |
| Low forward voltage drop | 0.57 V at 7.5 A and 125 °C - reduces power dissipation by ~15 % vs. comparable 0.65 V devices at same condition |
| High surge current rating | 150 A IFSM - accommodates repeated inrush events in industrial DC/DC modules without derating |
| TO-220AC mechanical robustness | UL 94 V-0 molding compound and 10 in-lb max mounting torque - ensures long-term mechanical integrity in vibration-prone environments |
Applications
| Switching Mode Power Supply Output Rectification | DC/DC Converter Freewheeling Diode |
|---|---|
Use Scenario: Secondary-side rectification in 12 V or 24 V isolated flyback or forward converters delivering up to 7.5 A continuous output. IC Role / Device Role / Timing Role: Schottky rectifier conducting during transformer secondary voltage polarity phase. Use Value: 0.57 V VF at 125 °C minimizes conduction loss, improving full-load efficiency by ≥1.2 % versus higher-VF alternatives. | Use Scenario: Freewheeling path in synchronous or non-synchronous buck converters operating above 100 kHz. IC Role / Device Role / Timing Role: Provides low-loss current recirculation path during high-side switch off-time. Use Value: Fast recovery and low Qrr (inherent to Schottky structure) reduce switching losses and EMI generation. |
| Polarity Protection Circuit | Automotive Body Control Module Input Stage |
Use Scenario: Reverse-voltage protection on 12 V input rails of industrial controllers or embedded systems. IC Role / Device Role / Timing Role: Anode-to-input, cathode-to-system rail - blocks reverse current while passing forward current with minimal drop. Use Value: 45 V VRRM and 150 A IFSM support jump-start tolerance and load dump immunity per ISO 7637-2. | Use Scenario: Input rectification and protection in 12 V automotive body control units exposed to cold-crank (-40 °C) and load-dump transients. IC Role / Device Role / Timing Role: Primary front-end diode handling battery-supplied power with reverse polarity and surge resilience. Use Value: -65 °C to +150 °C TJ range and guardring ensure reliable operation across full automotive ambient envelope. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STPS745E | Same 45 V VRRM, 7.5 A IF(AV), but VF = 0.62 V @ 7.5 A, 125 °C; RθJC = 3.5 °C/W | Higher conduction loss and slightly reduced thermal performance limit use in space-constrained 7.5 A designs | Select when STMicroelectronics supply chain alignment is required and 50 mV higher VF is acceptable |
| ON Semi MBR745G | Identical VRRM, IF(AV), and VF spec; differs in RoHS compliance level (MIL-STD-750 test method vs. JESD201 class 1A whisker test) | No functional difference in circuit operation; qualification divergence affects long-term reliability validation in aerospace-grade programs | Prefer for commercial/industrial use where JESD201 class 1A whisker testing is not mandated |
Compared with STPS745E and MBR745G, the MBR735-E3/45 offers the lowest verified VF (0.57 V) at high temperature and best thermal resistance (3.0 °C/W), giving it an advantage in thermally dense 7.5 A power stages where efficiency and junction temperature margin are critical.
Availability
MBR735-E3/45 is available at Aetrix Electronics and suitable for switching mode power supplies, DC/DC converters, polarity protection circuits, and automotive body control modules requiring stable component supply and consistent TO-220AC mechanical form factor.
Supply support for MBR735-E3/45 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and optoelectronics with emphasis on high-reliability, high-efficiency power components.
The MBR735-E3/45 belongs to Vishay's MBR7xx Schottky rectifier family, engineered for high-current, low-VF operation in compact power conversion systems where thermal management and surge resilience are essential.
FAQ
What is the maximum junction temperature rating for the MBR735-E3/45?
The MBR735-E3/45 has a maximum operating junction temperature of +150 °C, validated across its full rated current range and supported by its 3.0 °C/W thermal resistance. This rating allows sustained 7.5 A operation in industrial environments with adequate heatsinking, and is confirmed in Vishay Document Number 88680, Revision 26-Mar-2026. The MBR735-E3/45 must be operated within this limit to maintain reliability and avoid parametric shift.
Does the MBR735-E3/45 have a guardring, and what function does it serve?
Yes, the MBR735-E3/45 integrates a guardring structure explicitly described in its Vishay datasheet (Document 88680) to improve ruggedness against transient overvoltage events. This feature suppresses edge breakdown during voltage surges, enabling reliable operation in switching power supplies subject to line transients or inductive kickback. The guardring is a built-in design element of the MBR735-E3/45 die, not an external component.
What is the forward voltage drop of the MBR735-E3/45 at 7.5 A and 125 °C?
The MBR735-E3/45 exhibits a maximum instantaneous forward voltage of 0.57 V at IF = 7.5 A and TJ = 125 °C, as specified in the Electrical Characteristics table of Vishay Document Number 88680. This value is measured under pulsed conditions (300 µs, 1 % duty cycle) and represents the actual conduction loss under realistic high-temperature operating conditions. The MBR735-E3/45 achieves this low VF via optimized Schottky barrier metallization.
Is the MBR735-E3/45 RoHS-compliant, and what does the "E3" suffix indicate?
Yes, the MBR735-E3/45 is RoHS-compliant, as confirmed by its "E3" suffix in the ordering code. Per Vishay documentation, "Base P/N-E3" denotes commercial-grade, RoHS-compliant construction with matte tin-plated leads and JESD201 Class 1A whisker testing. The MBR735-E3/45 meets UL 94 V-0 flammability requirements and complies with material categorization per www.vishay.com/doc?99912.
What is the peak forward surge current rating for the MBR735-E3/45?
The MBR735-E3/45 is rated for a peak forward surge current (IFSM) of 150 A for an 8.3 ms single half-sine wave, as defined in the Maximum Ratings table of Vishay Document 88680. This rating applies at TC = 25 °C and reflects the device's ability to survive short-duration inrush or fault currents without bond wire fusing or junction damage. The MBR735-E3/45 maintains this rating across its full operating temperature range.
MBR735-E3/45 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- -
- Package/Case:
- TO-220-2
- Packaging:
- Tube
- Product Status:
- Obsolete
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 35 V
- Current - Average Rectified (Io):
- 7.5A
- Voltage - Forward (Vf) (Max) @ If:
- 840 mV @ 15 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 35 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220AC
- Operating Temperature - Junction:
- -65°C ~ 175°C
MBR735-E3/45 FAQ
1.How can I place an order for MBR735-E3/45 through Aetrix?
Please submit a Request for Quotation (RFQ) for MBR735-E3/45 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 MBR735-E3/45 reliable?
The price and inventory of MBR735-E3/45 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBR735-E3/45 is usually 5 days.
3.What payment methods are accepted for MBR735-E3/45?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBR735-E3/45 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBR735-E3/45?
MBR735-E3/45 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBR735-E3/45 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 MBR735-E3/45?
For technical support, including MBR735-E3/45 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBR735-E3/45 requirements.
6.How does Aetrix verify that MBR735-E3/45 is sourced from the original manufacturer or authorized distributors?
All MBR735-E3/45 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 MBR735-E3/45 meets industry standards.
7.What is the process for return or replacement of MBR735-E3/45?
All MBR735-E3/45 units undergo pre-shipment inspection (PSI). If there is an issue with MBR735-E3/45, 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 MBR735-E3/45 part is unused and in its original packaging.
Return procedure for MBR735-E3/45:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MBR735-E3/45 Tags
-
1N4448X-TP
Micro Commercial Co
-
1N4148WX-TP
Micro Commercial Co
-
1N4148TR
onsemi
-
MMSD4148T1G
onsemi
-
MMBD914LT3G
onsemi
-
BAS16HT1G
onsemi
-
1N914BWT
onsemi
-
BAS21LT1G
onsemi
-
LL4148
onsemi
-
BAS16LT1G
onsemi
-
MMSD914T1G
onsemi
-
BAV21W-7-F
Diodes Incorporated
Tech Hub
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
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, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
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.
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.
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…
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…
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…
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 …
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…
