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onsemi MBR2535CT
- Part No.:
- MBR2535CT
- Manufacturer:
- onsemi
- Category:
- Diode Arrays
- Package:
- TO-220-3
- Datasheet:
-
MBR2535CT.pdf
- Description:
- DIODE ARRAY SCHOT 35V 30A TO-220
- Quantity:
- Payment:
- Shipping:
Inventory:6,421
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Product details
Overview
MBR2535CT from Diodes Incorporated is a 35V, 30A dual common-cathode Schottky barrier rectifier in TO-220AB package, featuring 0.73V forward voltage at 30A/25°C and 40mA peak reverse current at 125°C, optimized for low-voltage, high-frequency free-wheeling and polarity protection in DC-DC converters and industrial power supplies.
For engineers reviewing the MBR2535CT datasheet, MBR2535CT pinout, MBR2535CT application, or MBR2535CT equivalent, key selection criteria include its 35V VRRM rating, dual common-cathode configuration, 1.5°C/W junction-to-case thermal resistance, and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This dual-diode Schottky rectifier integrates two independent anode terminals sharing a single cathode terminal, enabling synchronous rectification or dual-path freewheeling in half-bridge topologies. Its guard ring die construction provides transient overvoltage protection without external snubbers.
Designed for operation up to +175°C junction temperature, it maintains stable forward conduction under high ambient conditions typical of enclosed power modules and motor drive inverters, with capacitance of 750pF per element at 1MHz/4V reverse bias.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 35 V - Maximum repetitive reverse blocking voltage per diode element |
| IO (TC=130°C) | 30 A - Average rectified output current per diode with heatsink mounting |
| VF @ 30A/25°C | 0.73 V - Low conduction loss enabling >92% efficiency in 5–12V output stages |
| IRM @ 125°C | 40 mA - Reverse leakage limiting standby power loss in high-temp environments |
| RθJC | 1.5 °C/W - Enables direct heatsink mounting without thermal interface pads for compact designs |
| IFSM (8.3ms) | 150 A - Withstands inrush surges during cold-start of switched-mode power supplies |
| CT (1MHz) | 750 pF - Limits high-frequency switching noise coupling in fast-switching converters |
Pinout & Package
TO-220AB package with isolated metal tab (cathode-connected case), 3-terminal configuration: Pin 1 = Anode 1, Pin 2 = Cathode (common), Pin 3 = Anode 2. Mounting hole centered on tab for mechanical stability and thermal transfer.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode 1 | Input path for first rectification channel; electrically isolated from Pin 3 |
| Pin 2 | Cathode (Common) | Shared return node for both diodes; connected to metal tab for thermal conduction |
| Pin 3 | Anode 2 | Input path for second rectification channel; electrically isolated from Pin 1 |
Key Features
| Feature | Design Value |
|---|---|
| Dual common-cathode Schottky structure | Enables space-efficient dual-path freewheeling in half-bridge and synchronous buck converters |
| Guard ring die construction | Suppresses edge breakdown during voltage transients without external clamping components |
| AEC-Q101 qualified | Validated for automotive under-hood applications including engine control and lighting modules |
| Lead-free, halogen-free "Green" packaging | Complies with RoHS 2 and JEDEC J-STD-020 Level 1 moisture sensitivity requirements |
Applications
| DC-DC Converter Freewheeling | Polarity Protection |
|---|---|
Use Scenario: Secondary-side rectification in 5–12V isolated flyback or forward converters powering FPGA or ASIC core rails. IC Role / Device Role / Timing Role: Dual-channel freewheeling diode replacing two discrete Schottkys to reduce layout area and parasitic inductance. Use Value: 0.73V VF minimizes conduction loss at 30A peak load, improving full-load efficiency by ≥1.2% versus silicon alternatives. | Use Scenario: Input reverse-polarity protection for 24V industrial PLC I/O modules exposed to field wiring errors. IC Role / Device Role / Timing Role: Common-cathode dual diode configured as OR-ing pair with external MOSFET gate control. Use Value: 35V VRRM withstands 24V system transients while 150A IFSM handles accidental short-circuit events. |
| Motor Drive Recirculation | LED Driver Output Rectification |
Use Scenario: Recirculating current path in H-bridge motor drivers for 24–48V brushed DC motors in automated machinery. IC Role / Device Role / Timing Role: Dual-anode configuration allows independent freewheeling paths for upper and lower bridge arms. Use Value: 750pF capacitance limits EMI generation during 20kHz PWM commutation, easing EMC filter design. | Use Scenario: Output rectification in constant-current LED drivers for streetlighting systems operating at 36V output. IC Role / Device Role / Timing Role: High-current Schottky rectifier delivering stable DC to LED strings with minimal thermal rise. Use Value: 1.5°C/W RθJC enables direct heatsink mounting without thermal paste, reducing BOM count and assembly steps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STPS30H100CG | 100V VRRM, 30A IO, VF = 0.82V @ 30A/25°C, TO-220AC package (isolated tab) | Higher voltage rating suits 48V telecom systems; higher VF increases conduction loss in 24V systems | Select when >60V reverse blocking is required; avoid if optimizing for lowest VF in ≤36V rails |
| VB2535-E3/4W | 35V VRRM, 25A IO, VF = 0.75V @ 25A/25°C, TO-220AB package, no AEC-Q101 qualification | Limited surge rating (120A vs 150A) and no automotive qualification restricts use to commercial-grade equipment | Acceptable for cost-sensitive non-automotive applications where 30A derating to 25A is acceptable |
Compared with STPS30H100CG and VB2535-E3/4W, MBR2535CT uniquely balances 35V blocking, 30A current, sub-0.75V VF, and AEC-Q101 compliance-making it optimal for space-constrained, thermally demanding automotive and industrial 24V power stages.
Availability
MBR2535CT is available at Aetrix Electronics and suitable for DC-DC converter freewheeling, motor drive recirculation, and LED driver output rectification requiring stable component supply across automotive, industrial automation, and outdoor lighting programs.
Supply support for MBR2535CT 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 and manufacturing operations across Asia and the Americas.
MBR2535CT belongs to the MBR25xxCT Schottky rectifier product line, engineered specifically for high-efficiency, high-reliability power conversion in automotive and industrial environments where low VF and robust surge capability are critical.
FAQ
Is MBR2535CT pin-compatible with MBR2545CT or MBR2560CT?
Yes, all three share identical TO-220AB package, pinout (Pin 1 = Anode 1, Pin 2 = Common Cathode, Pin 3 = Anode 2), and mechanical footprint. Only electrical ratings differ-VRRM is 35V for MBR2535CT versus 45V and 60V for the others-so substitution requires verification of reverse voltage margin in the target circuit.
What is the maximum continuous junction temperature for MBR2535CT?
The absolute maximum junction temperature is +175°C, with rated average output current of 30A specified at TC = +130°C. Derating curves show usable current drops to ~18A at TC = +150°C and ~12A at TC = +165°C, assuming proper heatsinking per the 1.5°C/W RθJC specification.
Does MBR2535CT require a heatsink in standard operation?
Yes-its 30A IO rating assumes mounting on a heatsink that maintains case temperature ≤+130°C. Without forced-air cooling or substantial copper area, thermal saturation occurs rapidly; typical designs use ≥15 cm² of 2oz copper with thermal vias or an aluminum heatsink to sustain full-rated current.
How does the guard ring construction improve reliability?
The guard ring is a doped semiconductor region surrounding the active junction edge, preventing premature avalanche breakdown under transient overvoltage. This eliminates need for external TVS diodes in many 24V/48V industrial applications and extends lifetime under repeated surge stress per IEC 61000-4-5 testing.
MBR2535CT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- SWITCHMODE™
- Package/Case:
- TO-220-3
- Packaging:
- Tube
- Product Status:
- Obsolete
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 35 V
- Current - Average Rectified (Io) (per Diode):
- 30A
- Voltage - Forward (Vf) (Max) @ If:
- 820 mV @ 30 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 200 µA @ 35 V
- Operating Temperature - Junction:
- -65°C ~ 175°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220
MBR2535CT FAQ
1.How can I place an order for MBR2535CT through Aetrix?
Please submit a Request for Quotation (RFQ) for MBR2535CT 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 MBR2535CT reliable?
The price and inventory of MBR2535CT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBR2535CT is usually 5 days.
3.What payment methods are accepted for MBR2535CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBR2535CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBR2535CT?
MBR2535CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBR2535CT 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 MBR2535CT?
For technical support, including MBR2535CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBR2535CT requirements.
6.How does Aetrix verify that MBR2535CT is sourced from the original manufacturer or authorized distributors?
All MBR2535CT 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 MBR2535CT meets industry standards.
7.What is the process for return or replacement of MBR2535CT?
All MBR2535CT units undergo pre-shipment inspection (PSI). If there is an issue with MBR2535CT, 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 MBR2535CT part is unused and in its original packaging.
Return procedure for MBR2535CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MBR2535CT Tags
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