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Vishay General Semiconductor - Diodes Division 15CTQ045STRL
- Part No.:
- 15CTQ045STRL
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
15CTQ045STRL.pdf
- Description:
- DIODE ARR SCHOT 45V 7.5A TO263AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,011
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Product details
Overview
15CTQ045STRL from Vishay is a center-tap dual Schottky rectifier in D2PAK (TO-263) package, rated for 2 × 7.5 A average forward current per leg, 45 V maximum reverse voltage, and 0.51 V forward voltage drop at 7.5 A and 125 °C junction temperature. It serves as a freewheeling or output rectifier in high-frequency DC/DC converters and switching power supplies.
For engineers reviewing the 15CTQ045STRL datasheet, 15CTQ045STRL pinout, 15CTQ045STRL application, or 15CTQ045STRL equivalent, key selection criteria include its 45 V VR rating, 15 A total average current capability (dual-leg), low VF at elevated temperature, 150 °C TJ operation, and D2PAK tape-and-reel packaging for automated assembly.
Technical Context
This device integrates two independent Schottky diodes sharing a common cathode terminal, enabling center-tap configuration for full-wave rectification or dual synchronous rectifier control. Its proprietary barrier technology ensures stable operation up to 150 °C junction temperature with moderate reverse leakage (32 mA at 125 °C, VR = 45 V).
Designed for high-frequency switching applications, it delivers low forward voltage (0.51 V @ 7.5 A, 125 °C), fast recovery (no stored charge), and high dV/dt capability (10,000 V/µs), minimizing switching losses and EMI in SMPS and OR-ing circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF(AV) per leg | 7.5 A - supports continuous 15 A total average current in dual-leg operation with heatsink |
| VRRM / VR | 45 V - maximum DC reverse blocking voltage; suitable for 36 V nominal bus systems with margin |
| VF @ 7.5 A, 125 °C | 0.51 V - low conduction loss enables >95 % efficiency in 12–48 V output converters |
| IRM @ 45 V, 125 °C | 32 mA - moderate leakage allows use in battery-reverse protection without excessive standby drain |
| RthJC per leg | 3.50 °C/W - thermal resistance enables 25 W dissipation per leg at ΔT = 87.5 °C (TC = 62.5 °C) |
| IFSM per leg | 810 A - surge rating supports inrush and short-circuit handling in industrial power supplies |
| TJ range | −55 to +150 °C - qualified for automotive under-hood and industrial ambient conditions |
Pinout & Package
D2PAK (TO-263) surface-mount package with exposed metal tab for thermal conduction; 3-terminal configuration: Pin 1 = Anode 1, Pin 2 = Cathode (common), Pin 3 = Anode 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode of Diode Leg 1 | Input node for first half of center-tapped secondary or first synchronous rectifier path |
| Pin 2 | Common Cathode | Shared output node; must be connected to system ground or low-side return path |
| Pin 3 | Anode of Diode Leg 2 | Input node for second half of center-tapped secondary or second synchronous rectifier path |
Key Features
| Feature | Design Value |
|---|---|
| 150 °C junction-rated operation | Enables reliable deployment in sealed enclosures or high-ambient industrial environments without derating |
| Low VF at high temperature | 0.51 V @ 7.5 A, 125 °C reduces conduction loss by ~25 % vs. standard Schottkys at same condition |
| Guard ring structure | Improves edge termination ruggedness, preventing premature avalanche failure during voltage transients |
| High-purity epoxy encapsulation | Provides enhanced moisture resistance (MSL 1) and mechanical robustness for reflow and vibration stress |
| Q101-qualified | Meets AEC-Q101 stress test requirements for discrete semiconductors in automotive electronics |
Applications
| Server PSU Output Rectification | Industrial DC/DC Converter |
|---|---|
Use Scenario: High-efficiency 48 V to 12 V step-down converter in rack-mounted server power supplies. IC Role / Device Role / Timing Role: Dual-leg synchronous rectifier replacing MOSFETs in center-tapped topology; common cathode tied to 12 V output rail. Use Value: 0.51 V VF at 125 °C reduces conduction loss by 1.1 W per leg vs. legacy Schottkys, improving full-load efficiency by 0.4 %. | Use Scenario: 24 V input, 5 V/20 A isolated DC/DC module for PLC I/O modules. IC Role / Device Role / Timing Role: Center-tap output rectifier in forward converter; handles 10 A per leg with forced-air cooling. Use Value: 150 °C TJ rating allows operation at 85 °C ambient without thermal shutdown, eliminating need for oversized heatsinks. |
| Automotive Battery Protection | Telecom Rectifier Module |
Use Scenario: Reverse-polarity protection for 24 V vehicle infotainment head units with backup battery support. IC Role / Device Role / Timing Role: OR-ing diode in dual-battery redundancy path; anodes connected to main and auxiliary battery inputs. Use Value: 32 mA IRM at 125 °C limits parasitic drain during hot standby, extending backup runtime by >12 hours. | Use Scenario: 48 V telecom rectifier shelf with N+1 redundancy and hot-swap capability. IC Role / Device Role / Timing Role: Freewheeling diode in active-clamp forward converter; handles repetitive 810 A surge during fault clearing. Use Value: 810 A IFSM per leg withstands 10× rated load surges without bond-wire fusing, supporting GR-1089 compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STPS1545CGY | Same 45 V VR, 15 A total IF(AV), but TO-220AC package; RthJC = 2.5 °C/W (per package), VF = 0.55 V @ 7.5 A, 125 °C | Requires through-hole mounting and larger PCB footprint; better thermal performance per package but no tape-and-reel option | Select when manual assembly or higher thermal conductivity via bolt-down heatsink is preferred over SMT automation |
| MBR1545CT | 45 V VR, 15 A IF(AV), TO-220 package; VF = 0.62 V @ 7.5 A, 125 °C; not Q101-qualified; IRM = 45 mA @ 125 °C | Lacks automotive qualification and has higher VF/leakage; lower cost for non-automotive industrial use | Select for cost-sensitive non-automotive applications where 0.11 V higher VF and 13 mA extra leakage are acceptable |
Compared with STPS1545CGY and MBR1545CT, the 15CTQ045STRL offers SMT-compatible D2PAK packaging with tape-and-reel delivery, tighter VF control at high temperature, and formal AEC-Q101 qualification-making it optimal for automated, high-reliability, thermally constrained designs.
Availability
15CTQ045STRL is available at Aetrix Electronics and suitable for server power supplies, industrial DC/DC converters, and automotive battery protection systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for 15CTQ045STRL 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 manufacturer of discrete semiconductors and passive components, specializing in high-reliability power devices for automotive, industrial, and computing markets.
The 15CTQ series is part of Vishay's High Power Products line, engineered for low-loss, high-temperature rectification in space-constrained, high-efficiency power conversion systems.
FAQ
What is the maximum junction temperature rating for the 15CTQ045STRL?
The 15CTQ045STRL is rated for continuous operation up to 150 °C junction temperature, validated per AEC-Q101 stress testing. This allows reliable use in high-ambient environments such as enclosed power supplies or under-hood automotive locations without thermal derating below 125 °C ambient.
Does the 15CTQ045STRL have a center-tap configuration, and how is it implemented?
Yes, the 15CTQ045STRL features an internal center-tap configuration with two anodes (Pins 1 and 3) and one shared cathode (Pin 2). This structure enables full-wave rectification from a center-tapped transformer secondary or dual-path synchronous rectification in DC/DC topologies without external wiring.
Is the 15CTQ045STRL lead-free and RoHS compliant?
Yes, the 15CTQ045STRL is lead (Pb)-free and RoHS compliant, as indicated by the "TRL" suffix in its ordering code and confirmed in Vishay's packaging documentation (Doc. #95032). It meets EU Directive 2011/65/EU and related exemptions.
What is the thermal resistance from junction to case for the 15CTQ045STRL?
The 15CTQ045STRL has a maximum thermal resistance of 3.50 °C/W per leg (junction-to-case), measured under DC conditions. The total package RthJC is 1.75 °C/W since both legs share the same thermal path through the D2PAK exposed tab.
Can the 15CTQ045STRL be used in reverse battery protection circuits?
Yes, the 15CTQ045STRL is suitable for reverse battery protection due to its 45 V VR rating, low forward voltage (0.51 V @ 7.5 A, 125 °C), and moderate reverse leakage (32 mA @ 125 °C). Its Q101 qualification further supports use in automotive 24 V systems where polarity reversal immunity is required.
15CTQ045STRL 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):
- 7.5A
- Voltage - Forward (Vf) (Max) @ If:
- 550 mV @ 7.5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 800 µA @ 45 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263AB (D2PAK)
15CTQ045STRL FAQ
1.How can I place an order for 15CTQ045STRL through Aetrix?
Please submit a Request for Quotation (RFQ) for 15CTQ045STRL 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 15CTQ045STRL reliable?
The price and inventory of 15CTQ045STRL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 15CTQ045STRL is usually 5 days.
3.What payment methods are accepted for 15CTQ045STRL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 15CTQ045STRL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 15CTQ045STRL?
15CTQ045STRL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 15CTQ045STRL 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 15CTQ045STRL?
For technical support, including 15CTQ045STRL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 15CTQ045STRL requirements.
6.How does Aetrix verify that 15CTQ045STRL is sourced from the original manufacturer or authorized distributors?
All 15CTQ045STRL 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 15CTQ045STRL meets industry standards.
7.What is the process for return or replacement of 15CTQ045STRL?
All 15CTQ045STRL units undergo pre-shipment inspection (PSI). If there is an issue with 15CTQ045STRL, 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 15CTQ045STRL part is unused and in its original packaging.
Return procedure for 15CTQ045STRL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
15CTQ045STRL Tags
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BAV99-7-F
Diodes Incorporated
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BAT54C-7-F
Diodes Incorporated
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BAV99,215
Nexperia USA Inc.
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BAT54SLT1G
onsemi
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BAV70LT1G
onsemi
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BAT54CLT1G
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BAT54S-7-F
Diodes Incorporated
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BAV99LT1G
onsemi
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BAT54S,215
Nexperia USA Inc.
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BAS40-04LT1G
onsemi
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MMBD1503-TP
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BAV99WT1G
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