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Vishay General Semiconductor - Diodes Division VS-25CTQ045STRRPBF
- Part No.:
- VS-25CTQ045STRRPBF
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
VS-25CTQ045STRRPBF.pdf
- Description:
- DIODE ARR SCHOTT 45V 30A TO263AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,799
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Product details
Overview
VS-25CTQ045STRRPBF from Vishay Semiconductors is a high-performance dual common-cathode Schottky rectifier in D2PAK (TO-263AB) package, rated for 45 V reverse voltage, 30 A total average forward current (2 × 15 A per leg), and 0.50 V forward voltage at 15 A and 125 °C. It delivers low conduction loss and high-frequency switching capability in DC/DC converters and reverse battery protection circuits.
For engineers reviewing the VS-25CTQ045STRRPBF datasheet, VS-25CTQ045STRRPBF pinout, VS-25CTQ045STRRPBF application, or VS-25CTQ045STRRPBF equivalent, key selection criteria include its 150 °C junction rating, 900 pF junction capacitance per leg, 3.25 °C/W thermal resistance (junction-to-case per leg), AEC-Q101 qualification, and center-tap common-cathode configuration for synchronous rectification topologies.
Technical Context
This device integrates two independent Schottky die in a single D2PAK thermally enhanced package with a shared cathode terminal. Its proprietary barrier technology enables stable operation up to 150 °C junction temperature while maintaining low VF and moderate IRM - critical for high-efficiency 12 V/24 V automotive and industrial power supplies.
The VS-25CTQ045STRRPBF supports unclamped inductive switching with 20 mJ non-repetitive avalanche energy per leg and withstands dV/dt transients up to 10,000 V/μs. Its 8.0 nH typical series inductance and 900 pF junction capacitance per leg are optimized for <1 MHz switching frequencies in buck, boost, and flyback secondary-side rectification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR | 45 V maximum DC reverse voltage - sets upper limit for safe blocking in 36 V nominal systems. |
| IF(AV) | 30 A total (2 × 15 A per leg) - enables high-current output stages without paralleling discrete diodes. |
| VF @ 15 A, 125 °C | 0.50 V - reduces conduction loss to ~7.5 W per leg at full load, lowering heatsink requirements. |
| RthJC (per leg) | 3.25 °C/W - allows direct mounting to heatsink for thermal management in space-constrained designs. |
| IRM @ 125 °C | 70 mA - defines leakage-related power loss and thermal runaway risk under hot reverse bias. |
| EAS (per leg) | 20 mJ - supports limited unclamped inductive turn-off events without catastrophic failure. |
| TJ max. | 150 °C - enables operation in under-hood automotive environments and sealed industrial enclosures. |
Pinout & Package
D2PAK (TO-263AB) surface-mount package with exposed thermal pad; 3-pin configuration (pins 1 and 3 = anodes, pin 2 = common cathode); compatible with standard reflow profiles (MSL Level 1, peak 260 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode (Leg A) | Input terminal for first Schottky die; connects to transformer secondary or switch node in synchronous rectifier layout. |
| Pin 2 | Common Cathode | Shared output node for both legs; routed to output capacitor and ground plane with low-inductance path. |
| Pin 3 | Anode (Leg B) | Input terminal for second Schottky die; used in center-tapped transformer configurations or dual-phase outputs. |
Key Features
| Feature | Design Value |
|---|---|
| 150 °C TJ operation | Enables reliable deployment in engine control units and industrial motor drives without derating at ambient >105 °C. |
| Guard ring structure | Improves ruggedness against voltage transients and mechanical stress during board flex or thermal cycling. |
| AEC-Q101 qualified | Validated for automotive powertrain and body electronics applications requiring zero defect field performance. |
| High-purity epoxy encapsulation | Provides MSL Level 1 moisture resistance and long-term reliability in humid or condensing environments. |
| Center-tap common-cathode topology | Reduces PCB trace count vs. dual discrete diodes and simplifies gate drive synchronization in synchronous designs. |
Applications
| Automotive DC/DC Converters | Industrial SMPS Secondary Rectification |
|---|---|
|
Use Scenario: 12 V to 3.3 V/5 V step-down conversion in ADAS camera modules and infotainment head units. IC Role / Device Role / Timing Role: Secondary-side synchronous rectifier replacing MOSFETs in high-frequency buck converters. Use Value: 0.50 V VF at 125 °C reduces conduction loss by ~35 % versus standard Schottky alternatives, improving efficiency by 1.2 % at 15 A load. |
Use Scenario: Output rectification in 48 V input telecom and server PSUs operating at 300–500 kHz. IC Role / Device Role / Timing Role: Dual-leg freewheeling diode in interleaved LLC resonant converter secondary stage. Use Value: 900 pF junction capacitance per leg minimizes switching loss during zero-voltage switching transitions, preserving ZVS margin. |
| Reverse Battery Protection | Motor Drive Freewheeling Diodes |
|
Use Scenario: Input polarity protection in vehicle telematics gateways powered from battery rail with frequent jump-start events. IC Role / Device Role / Timing Role: Low-VF series-blocking element placed between battery and system input. Use Value: 0.56 V VF at 25 °C limits voltage drop to <0.85 V at 15 A, preventing brownout during cold-cranking (6 V battery). |
Use Scenario: Clamp diodes across H-bridge IGBTs in 24 V brushless DC motor controllers for HVAC actuators. IC Role / Device Role / Timing Role: Fast-recovery freewheeling path for inductive kickback during PWM commutation. Use Value: 10,000 V/μs dV/dt rating ensures immunity to fast-rising transients from IGBT switching edges, eliminating false turn-on. |
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-25CTQ045PBF | Same electrical specs but TO-220 through-hole package; no tape-and-reel packaging; higher RthJC (4.0 °C/W). | Suitable for prototyping or low-volume manual assembly where thermal mass and lead-forming flexibility are prioritized. | Select VS-25CTQ045PBF only when D2PAK reflow compatibility or automated SMT placement is not required. |
| ON Semiconductor MBR2545CT | 45 V, 25 A per leg (50 A total), VF = 0.72 V @ 15 A/25 °C; no AEC-Q101 qualification; TO-220AC package. | Acceptable for cost-sensitive industrial power supplies where automotive qualification and 150 °C operation are not mandatory. | Choose MBR2545CT only if 0.22 V higher VF at room temperature and lack of automotive qualification are acceptable trade-offs. |
Compared with VS-25CTQ045PBF and MBR2545CT, the VS-25CTQ045STRRPBF uniquely combines AEC-Q101 qualification, D2PAK thermal performance (3.25 °C/W), and 0.50 V VF at 125 °C - making it the only option qualified for under-hood automotive rectification with minimal heatsinking.
Availability
VS-25CTQ045STRRPBF is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial SMPS secondary rectification, and reverse battery protection requiring stable component supply, consistent parametric performance, and long-term lifecycle support.
Supply support for VS-25CTQ045STRRPBF 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 Semiconductors is a global leader in discrete semiconductors, specializing in high-reliability diodes, MOSFETs, and optoelectronics for automotive, industrial, and computing markets.
The VS-25CTQ series targets high-efficiency, high-temperature power conversion systems - specifically engineered to replace conventional silicon rectifiers in space- and thermal-constrained applications where low VF and ruggedness are critical.
FAQ
What is the maximum junction temperature rating for VS-25CTQ045STRRPBF?
The VS-25CTQ045STRRPBF has a maximum junction temperature (TJ max.) of +150 °C, verified per AEC-Q101 stress testing. This rating allows continuous operation in under-hood automotive environments and sealed industrial enclosures without derating up to case temperatures of 102 °C at 30 A total average current.
Is VS-25CTQ045STRRPBF qualified for automotive applications?
Yes, the VS-25CTQ045STRRPBF is AEC-Q101 qualified, meaning it has passed accelerated stress tests for temperature cycling, humidity, high-temperature reverse bias, and ESD - confirming suitability for automotive powertrain, body electronics, and ADAS subsystems.
What is the forward voltage drop of VS-25CTQ045STRRPBF at 15 A and 125 °C?
The VS-25CTQ045STRRPBF exhibits a maximum forward voltage drop (VF) of 0.50 V per leg at 15 A and TJ = 125 °C, as specified in the Electrical Specifications table on page 2 of Vishay document 94174. This value is measured under DC conditions and reflects real-world conduction loss in hot operating environments.
Does VS-25CTQ045STRRPBF have a center-tap configuration?
Yes, the VS-25CTQ045STRRPBF uses a center-tap common-cathode configuration: pins 1 and 3 serve as independent anodes, while pin 2 is the shared cathode. This architecture supports center-tapped transformer topologies and simplifies PCB layout versus dual discrete Schottky devices.
What is the thermal resistance from junction to case for VS-25CTQ045STRRPBF?
The VS-25CTQ045STRRPBF has a maximum thermal resistance of 3.25 °C/W per leg (RthJC), measured under DC operation with proper heatsink mounting. This value applies to each internal Schottky die independently and enables accurate thermal modeling for heatsink sizing in high-power applications.
VS-25CTQ045STRRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- -
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 45 V
- Current - Average Rectified (Io) (per Diode):
- 30A
- Voltage - Forward (Vf) (Max) @ If:
- 710 mV @ 30 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 1.75 mA @ 45 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263AB (D2PAK)
VS-25CTQ045STRRPBF FAQ
1.How can I place an order for VS-25CTQ045STRRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for VS-25CTQ045STRRPBF 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 VS-25CTQ045STRRPBF reliable?
The price and inventory of VS-25CTQ045STRRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VS-25CTQ045STRRPBF is usually 5 days.
3.What payment methods are accepted for VS-25CTQ045STRRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VS-25CTQ045STRRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VS-25CTQ045STRRPBF?
VS-25CTQ045STRRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VS-25CTQ045STRRPBF 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 VS-25CTQ045STRRPBF?
For technical support, including VS-25CTQ045STRRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VS-25CTQ045STRRPBF requirements.
6.How does Aetrix verify that VS-25CTQ045STRRPBF is sourced from the original manufacturer or authorized distributors?
All VS-25CTQ045STRRPBF 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 VS-25CTQ045STRRPBF meets industry standards.
7.What is the process for return or replacement of VS-25CTQ045STRRPBF?
All VS-25CTQ045STRRPBF units undergo pre-shipment inspection (PSI). If there is an issue with VS-25CTQ045STRRPBF, 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 VS-25CTQ045STRRPBF part is unused and in its original packaging.
Return procedure for VS-25CTQ045STRRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VS-25CTQ045STRRPBF Tags
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