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Taiwan Semiconductor Corporation MBRS25H45CTH
- Part No.:
- MBRS25H45CTH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
MBRS25H45CTH.pdf
- Description:
- DIODE ARR SCHOTT 45V 25A TO263AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,847
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Product details
Overview
MBRS25H45CTH from Taiwan Semiconductor is a dual-die AEC-Q101-qualified Schottky barrier rectifier in TO-263AB (D2PAK) package, rated for 25A average forward current, 45V repetitive peak reverse voltage, and 150A non-repetitive surge current - designed for high-efficiency DC/DC conversion and reverse battery protection in automotive lighting systems.
For engineers reviewing the MBRS25H45CTH datasheet, MBRS25H45CTH pinout, MBRS25H45CTH application, or MBRS25H45CTH equivalent, key selection criteria include its 0.70 V max forward voltage at 12.5A/25°C, 1.5 °C/W junction-to-case thermal resistance, guard ring–enabled overvoltage robustness, and J-STD-020 Level 1 moisture sensitivity rating.
Technical Context
The MBRS25H45CTH integrates two independent Schottky die in a common-cathode configuration within a single TO-263AB thermally enhanced surface-mount package. Its low VF and high IFSM support high-frequency switching topologies with minimal conduction loss and strong transient resilience.
Designed for automotive-grade reliability, it meets AEC-Q101 stress test requirements including temperature cycling, HTRB, and ESD, while its guard ring structure improves dv/dt capability to 10,000 V/µs and enables stable operation under load dump conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF (Avg) | 25 A - supports continuous output current in 12 V/24 V automotive DC/DC converters without forced air cooling |
| VRRM | 45 V - withstands load dump transients up to ISO 7637-2 Pulse 5a (up to 40 V) with margin |
| IFSM (8.3 ms) | 150 A - handles motor startup surges and inductive kickback in car lighting drivers |
| RθJC | 1.5 °C/W - enables direct heatsinking via exposed tab for thermal management in compact layouts |
| VF @ 12.5A/25°C | ≤ 0.70 V - reduces power loss to ≤8.75 W per diode versus silicon alternatives (>1.1 V) |
| IR @ 45V/125°C | ≤15 mA - ensures low leakage in hot under-hood environments without compromising system standby current |
| TJ max | +175 °C - qualified for under-hood placement near engines or headlamp modules |
Pinout & Package
Package: TO-263AB (D2PAK), thermally optimized surface-mount housing with exposed copper drain tab (cathode connection) and three leads: Pin 1 (Anode 1), Pin 2 (Cathode), Pin 3 (Anode 2). Meets UL 94V-0 flammability and JESD201 Class 2 whisker resistance standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode of Diode 1 | Input node for first rectification path; connects to switching node in half-bridge or synchronous rectifier stage |
| Pin 2 | Common Cathode | Shared cathode terminal tied to ground or low-side return; electrically and thermally connected to exposed metal tab |
| Pin 3 | Anode of Diode 2 | Input node for second rectification path; enables dual-channel freewheeling or dual-output DC/DC designs |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive power electronics requiring zero-failure reliability across -40°C to +125°C ambient |
| Guard ring structure | Improves edge termination stability, enabling 10,000 V/µs dv/dt immunity during fast-switching MOSFET commutation |
| Level 1 moisture sensitivity | Allows unlimited floor life before reflow; eliminates baking requirement in SMT assembly lines |
| Halogen-free & RoHS | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for eco-conscious vehicle manufacturing |
| Matte tin-plated leads | Ensures solder joint integrity per J-STD-002, supporting lead-free reflow profiles up to 260°C peak |
Applications
| Automotive LED Headlamp Drivers | 12 V Automotive DC/DC Converters |
|---|---|
Use Scenario: High-brightness LED arrays powered by buck-derived constant-current supplies in adaptive front-lighting systems. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous rectified buck converter; clamps inductive energy during high-side switch off-time. Use Value: Low 0.70 V VF minimizes heat generation in sealed lamp housings; 175°C TJ rating sustains operation during prolonged high-lumen output. | Use Scenario: Step-down conversion from 12 V battery to 5 V/3.3 V rails for infotainment and ADAS ECUs. IC Role / Device Role / Timing Role: Output rectifier in secondary-side synchronous or quasi-resonant topology. Use Value: Dual-die configuration allows interleaved operation or redundancy; 150 A IFSM absorbs load-step transients without derating. |
| Reverse Battery Protection | Industrial 24 V Power Supplies |
Use Scenario: Preventing damage from accidental reverse polarity connection during vehicle service or jump-starting. IC Role / Device Role / Timing Role: Series-connected Schottky OR-ing diode placed between battery input and main power rail. Use Value: 45 V VRRM provides 5 V margin above 36 V load dump peaks; low VF avoids excessive voltage drop in 12 V systems. | Use Scenario: DIN-rail mounted 24 V industrial PSUs powering PLC I/O modules and sensors. IC Role / Device Role / Timing Role: Input rectifier in bridgeless PFC or output freewheeling element in isolated flyback stages. Use Value: TO-263AB package enables direct mounting to aluminum heatsinks; RθJC = 1.5 °C/W supports >20 W dissipation without thermal throttling. |
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-25CPH04-M3 | Same 25 A / 45 V rating, but TO-247AC package; higher RθJA (30 °C/W), no AEC-Q101 qualification | Preferred for industrial mains-input supplies where automotive qualification is unnecessary | Select when board-level heatsinking is impractical and discrete heatsink mounting is available |
| ON Semiconductor MBR2545CT | Identical TO-263AB package and pinout; AEC-Q101 not claimed; VF slightly higher (0.72 V typ @ 12.5A) | Suitable for cost-sensitive commercial DC/DC where automotive reliability is not mandated | Choose for legacy designs already using MBR2545CT footprint, with verification of thermal margin at 125°C |
Compared with VS-25CPH04-M3 and MBR2545CT, the MBRS25H45CTH uniquely combines AEC-Q101 compliance, Level 1 moisture sensitivity, and 1.5 °C/W RθJC in TO-263AB - making it the only option qualified for under-hood automotive use without thermal derating or assembly restrictions.
Availability
MBRS25H45CTH is available at Aetrix Electronics and suitable for automotive lighting systems, 12 V/24 V DC/DC converters, and reverse battery protection circuits requiring stable component supply, long-term lifecycle assurance, and full traceability.
Supply support for MBRS25H45CTH 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 power semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global automotive, industrial, and consumer markets since 1979.
The MBRS25H45CTH belongs to TSC's AEC-Q101-qualified Schottky rectifier product line, engineered specifically for high-reliability automotive power conversion where low VF, high surge tolerance, and thermal robustness are critical.
FAQ
What is the maximum junction temperature rating for the MBRS25H45CTH?
The MBRS25H45CTH has a maximum junction temperature (TJ max) of +175°C, validated per AEC-Q101 stress testing. This rating allows reliable operation in under-hood automotive environments where ambient temperatures exceed 105°C, provided thermal design maintains junction temperature below this limit using the specified RθJC of 1.5 °C/W and appropriate heatsinking.
Does the MBRS25H45CTH support automated SMT placement?
Yes, the MBRS25H45CTH is explicitly designed for automated placement, as confirmed in its official datasheet features list. Its TO-263AB (D2PAK) package, matte tin-plated leads compliant with J-STD-002, and Level 1 moisture sensitivity rating enable direct use in standard reflow processes without pre-baking - supporting high-yield, high-throughput SMT assembly for automotive PCBs.
Is the MBRS25H45CTH pin-compatible with the MBR2545CT?
Yes, the MBRS25H45CTH shares identical TO-263AB (D2PAK) mechanical dimensions, pin assignment (Pin 1: Anode 1, Pin 2: Cathode, Pin 3: Anode 2), and marking layout with ON Semiconductor's MBR2545CT. However, MBRS25H45CTH adds AEC-Q101 qualification and tighter VF distribution - making it a drop-in replacement only after verifying thermal and reliability requirements in automotive applications.
What does the "H" suffix in MBRS25H45CTH indicate?
The "H" in MBRS25H45CTH denotes Taiwan Semiconductor's halogen-free variant, certified per IEC 61249-2-21. This distinguishes it from standard versions (e.g., MBRS2545CT) and confirms compliance with automotive environmental directives requiring elimination of brominated flame retardants and chlorine-based compounds in printed circuit board assemblies.
Can the MBRS25H45CTH be used in reverse battery protection circuits?
Yes, the MBRS25H45CTH is explicitly recommended for reverse battery protection in its datasheet Applications section. Its 45 V VRRM provides sufficient margin against 36 V load dump transients, while its low 0.70 V forward voltage minimizes insertion loss in 12 V systems - ensuring stable power delivery to downstream ECUs even during polarity reversal events.
MBRS25H45CTH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 45 V
- Current - Average Rectified (Io) (per Diode):
- 25A
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 25 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 200 µA @ 45 V
- Operating Temperature - Junction:
- -55°C ~ 175°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263AB (D2PAK)
MBRS25H45CTH FAQ
1.How can I place an order for MBRS25H45CTH through Aetrix?
Please submit a Request for Quotation (RFQ) for MBRS25H45CTH 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 MBRS25H45CTH reliable?
The price and inventory of MBRS25H45CTH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBRS25H45CTH is usually 5 days.
3.What payment methods are accepted for MBRS25H45CTH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBRS25H45CTH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBRS25H45CTH?
MBRS25H45CTH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBRS25H45CTH 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 MBRS25H45CTH?
For technical support, including MBRS25H45CTH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBRS25H45CTH requirements.
6.How does Aetrix verify that MBRS25H45CTH is sourced from the original manufacturer or authorized distributors?
All MBRS25H45CTH 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 MBRS25H45CTH meets industry standards.
7.What is the process for return or replacement of MBRS25H45CTH?
All MBRS25H45CTH units undergo pre-shipment inspection (PSI). If there is an issue with MBRS25H45CTH, 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 MBRS25H45CTH part is unused and in its original packaging.
Return procedure for MBRS25H45CTH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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