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Vishay General Semiconductor - Diodes Division 30CTQ045STRL
- Part No.:
- 30CTQ045STRL
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
30CTQ045STRL.pdf
- Description:
- DIODE ARR SCHOTT 45V 15A TO263AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,871
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Product details
Overview
30CTQ045STRL from Vishay is a center-tap dual Schottky rectifier rated for 2 × 15 A average forward current per leg, 45 V maximum reverse voltage, and 175 °C junction operation - optimized for low VF (0.56 V @ 15 A, 125 °C) in high-frequency switching power supplies and reverse battery protection circuits.
For engineers reviewing the 30CTQ045STRL datasheet, 30CTQ045STRL pinout, 30CTQ045STRL application, or 30CTQ045STRL equivalent, key selection criteria include its D2PAK-3L package thermal resistance (RthJC = 3.25 °C/W per leg), 1060 A non-repetitive surge rating, and center-tap common-cathode configuration for half-bridge freewheeling and DC/DC converter outputs.
Technical Context
This dual-leg Schottky rectifier integrates two independent anode terminals sharing a common cathode terminal, enabling synchronous rectification or center-tapped transformer secondary rectification. Its proprietary barrier technology ensures stable operation up to 175 °C TJ with low leakage (15 mA @ 125 °C, VR = 45 V).
Designed for high-frequency DC/DC conversion, it delivers fast recovery (dV/dt = 10,000 V/µs), low junction capacitance (900 pF @ 5 V), and minimal series inductance (8.0 nH), supporting efficient operation in >100 kHz switch-mode topologies without snubber networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF(AV) per leg | 15 A average forward current (30 A total package rating); supports continuous conduction mode in 100–500 kHz converters |
| VRRM | 45 V maximum repetitive reverse voltage; suitable for 36 V nominal bus systems with 20 % margin |
| VF @ 15 A, 125 °C | 0.56 V forward voltage drop per leg; reduces conduction loss by ~35 % vs. standard silicon diodes at same current |
| IFSM per leg | 1060 A peak surge (5 µs sine); withstands inrush and fault currents in industrial SMPS |
| RthJC per leg | 3.25 °C/W junction-to-case thermal resistance; enables 30 W dissipation with 100 °C case temperature rise |
| IRM @ 125 °C | 15 mA max reverse leakage per leg; limits standby power loss in battery-backed systems |
| CT @ 5 V | 900 pF junction capacitance per leg; minimizes switching loss and EMI in high-dV/dt environments |
Pinout & Package
D2PAK-3L surface-mount package (TO-263 variant) with exposed copper pad for thermal enhancement; 3-terminal configuration: Pin 1 = Anode 1, Pin 2 = Common Cathode, Pin 3 = Anode 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode 1 | Input terminal for first rectifier leg; connects to transformer secondary or switching node |
| Pin 2 | Common Cathode | Shared output node for both legs; ties to output capacitor or load return path |
| Pin 3 | Anode 2 | Input terminal for second rectifier leg; enables center-tap full-wave rectification |
Key Features
| Feature | Design Value |
|---|---|
| 175 °C junction rating | Enables operation in sealed enclosures or high-ambient environments without derating below 125 °C |
| Guard ring structure | Improves ruggedness against transient overvoltage and mechanical stress during reflow or board flex |
| High-purity epoxy encapsulation | Provides IPC-J-STD-020 moisture sensitivity level 1 (MSL-1) and >1000 hrs 85/85 reliability |
| Q101 qualification | Meets AEC-Q101 stress test requirements for automotive under-hood power modules |
| Low VF + low CT synergy | Reduces combined conduction and switching losses - critical for >95 % efficiency 48 V–12 V buck converters |
Applications
| Server VRM Output Stage | Automotive DC/DC Converter |
|---|---|
Use Scenario: High-current 12 V output stage in 48 V–12 V server VRMs operating at 300–500 kHz. IC Role / Device Role / Timing Role: Dual-leg synchronous rectifier replacing MOSFETs in center-tapped topology; handles 30 A total output current. Use Value: 0.56 V VF at 125 °C reduces conduction loss by 1.7 W per leg vs. Si diodes, lowering heatsink requirements. | Use Scenario: 12 V battery backup supply in ADAS ECUs with reverse polarity protection and cold-crank tolerance. IC Role / Device Role / Timing Role: Reverse battery protection diode and freewheeling element in 200 kHz isolated flyback converter. Use Value: 45 V VRRM and 1060 A IFSM withstand 120 V load dump transients while maintaining <15 mA leakage at 125 °C ambient. |
| Industrial Motor Drive PSU | Telecom Rectifier Module |
Use Scenario: Auxiliary 24 V power supply for gate drivers and logic in 3-phase IGBT inverters. IC Role / Device Role / Timing Role: Center-tap rectifier on transformer secondary; operates continuously at 100 °C case temperature. Use Value: 3.25 °C/W RthJC allows direct mounting to aluminum chassis, eliminating discrete heatsinks. | Use Scenario: 48 V input rectification in hot-swappable telecom rectifier bricks with 92 % efficiency target. IC Role / Device Role / Timing Role: Primary output rectifier in phase-shifted full-bridge topology with 150 kHz switching frequency. Use Value: 900 pF CT and 8.0 nH LS minimize ringing and EMI filter size without sacrificing surge robustness. |
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-30CTQ045S | Same die, identical electrical specs; tube packaging (no tape-and-reel), no TRL suffix | No difference in circuit function or thermal performance; differs only in packaging format | Select 30CTQ045STRL for automated SMT placement; choose VS-30CTQ045S for manual prototyping or low-volume hand assembly |
| ON Semiconductor MBR3045CT | 45 V VRRM, 30 A IF(AV), TO-220AB package; VF = 0.72 V @ 15 A, 25 °C (higher than 30CTQ045STRL) | Higher thermal resistance (RthJC ≈ 2.5 °C/W but per package, not per leg); requires larger heatsink for same power | Use MBR3045CT where through-hole mounting is required; prefer 30CTQ045STRL for higher efficiency and surface-mount integration |
Compared with VS-30CTQ045S and MBR3045CT, the 30CTQ045STRL offers superior thermal performance per leg (3.25 °C/W), lower VF at elevated temperature, and tape-and-reel compatibility - making it optimal for high-efficiency, high-density SMT power designs requiring automotive-grade reliability.
Availability
30CTQ045STRL is available at Aetrix Electronics and suitable for server VRMs, automotive DC/DC converters, and industrial motor drive power supplies requiring stable component supply, long-term lifecycle support, and AEC-Q101 qualified parts.
Supply support for 30CTQ045STRL 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 Intertechnology is a global semiconductor manufacturer specializing in discrete components, passive elements, and sensors, with leadership in power semiconductors and high-reliability solutions.
The 30CTQ045STRL belongs to Vishay's High Power Products Schottky rectifier family, engineered for high-current, high-temperature switching power applications where low VF, ruggedness, and Q101 compliance are mandatory.
FAQ
What is the maximum junction temperature rating for the 30CTQ045STRL?
The 30CTQ045STRL is rated for a maximum junction temperature of 175 °C, verified per Vishay's Q101 qualification testing. This allows uninterrupted operation in high-ambient environments such as enclosed industrial power supplies or under-hood automotive modules without thermal derating below 125 °C ambient. The 30CTQ045STRL maintains stable VF and IR characteristics across this full range.
Does the 30CTQ045STRL have a center-tap configuration, and how is it implemented?
Yes, the 30CTQ045STRL uses a center-tap configuration with two anode terminals (Pins 1 and 3) and one shared cathode terminal (Pin 2). This arrangement enables full-wave rectification from center-tapped transformers or dual-phase synchronous rectification in DC/DC converters. The 30CTQ045STRL's internal layout ensures matched electrical characteristics between both legs for balanced current sharing.
What is the forward voltage drop of the 30CTQ045STRL at 15 A and 125 °C?
The 30CTQ045STRL exhibits a maximum forward voltage drop of 0.56 V per leg at 15 A and 125 °C junction temperature, as specified in the Vishay datasheet (Document Number 93957). This low VF value directly reduces conduction losses in high-current applications - for example, cutting 1.7 W of heat per leg compared to typical silicon rectifiers at the same conditions.
Is the 30CTQ045STRL lead-free and RoHS compliant?
Yes, the 30CTQ045STRL is lead (Pb)-free and complies with RoHS Directive 2011/65/EU. The "TRL" suffix indicates tape-and-reel packaging, and the device carries Vishay's standard Pb-free marking per their documentation (Doc. #95008). No exemption codes apply, and all homogeneous materials meet RoHS threshold limits.
What is the thermal resistance from junction to case for each leg of the 30CTQ045STRL?
The 30CTQ045STRL has a maximum thermal resistance of 3.25 °C/W from junction to case per leg, measured under DC conditions (Vishay Doc. #93957, Fig. 4). This value applies individually to each rectifier leg and enables precise thermal modeling when designing PCB copper pour areas or selecting heatsink interfaces for the D2PAK-3L exposed pad.
30CTQ045STRL 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:
- Obsolete
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 45 V
- Current - Average Rectified (Io) (per Diode):
- 15A
- Voltage - Forward (Vf) (Max) @ If:
- 620 mV @ 15 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 2 mA @ 45 V
- Operating Temperature - Junction:
- -55°C ~ 175°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263AB (D2PAK)
30CTQ045STRL FAQ
1.How can I place an order for 30CTQ045STRL through Aetrix?
Please submit a Request for Quotation (RFQ) for 30CTQ045STRL 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 30CTQ045STRL reliable?
The price and inventory of 30CTQ045STRL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 30CTQ045STRL is usually 5 days.
3.What payment methods are accepted for 30CTQ045STRL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 30CTQ045STRL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 30CTQ045STRL?
30CTQ045STRL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 30CTQ045STRL 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 30CTQ045STRL?
For technical support, including 30CTQ045STRL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 30CTQ045STRL requirements.
6.How does Aetrix verify that 30CTQ045STRL is sourced from the original manufacturer or authorized distributors?
All 30CTQ045STRL 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 30CTQ045STRL meets industry standards.
7.What is the process for return or replacement of 30CTQ045STRL?
All 30CTQ045STRL units undergo pre-shipment inspection (PSI). If there is an issue with 30CTQ045STRL, 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 30CTQ045STRL part is unused and in its original packaging.
Return procedure for 30CTQ045STRL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
30CTQ045STRL Tags
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BAV99,215
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BAV99LT1G
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