My Inquiry
My Account
Vishay General Semiconductor - Diodes Division VS-43CTQ100SPBF
- Part No.:
- VS-43CTQ100SPBF
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
VS-43CTQ100SPBF.pdf
- Description:
- DIODE ARR SCHOT 100V 20A TO263AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,107
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
VS-43CTQ100SPBF from Vishay Semiconductors is a high-performance, AEC-Q101-qualified dual Schottky rectifier in TO-263AB (D2PAK) package with common cathode configuration, 100 V reverse voltage rating, 2 × 20 A average forward current per leg, and 0.67 V forward voltage at 20 A and 125 °C - optimized for automotive DC/DC converters and industrial switching power supplies.
For engineers reviewing the VS-43CTQ100SPBF datasheet, VS-43CTQ100SPBF pinout, VS-43CTQ100SPBF application, or VS-43CTQ100SPBF equivalent, key selection criteria include its 175 °C junction temperature capability, low 11 mA reverse leakage at 125 °C, 7.50 mJ non-repetitive avalanche energy, and MSL Level 1 moisture sensitivity - critical for under-hood automotive and high-reliability industrial deployments.
Technical Context
This device integrates two independent Schottky die in a single center-tap–compatible common-cathode configuration, enabling synchronous rectification or dual-output freewheeling in compact layouts. Its proprietary barrier technology ensures stable operation up to 175 °C TJ while maintaining low VF and controlled IR across temperature.
The TO-263AB package delivers 1.0 °C/W maximum thermal resistance (junction-to-case per package), supported by a thermally enhanced copper baseplate and optimized internal metallization. Guard ring design and high-purity epoxy encapsulation provide ruggedness against mechanical stress and humidity-induced degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR | 100 V - maximum working peak reverse voltage; defines safe blocking capability in 48 V automotive systems and 100 V industrial SMPS inputs. |
| IF(AV) per leg | 20 A - continuous average forward current per anode leg at TC = 135 °C; supports high-efficiency 40 W–100 W output stages. |
| VF at 20 A / 125 °C | 0.67 V - low conduction loss enables >95 % efficiency in high-frequency buck converters operating above 200 kHz. |
| IRM max. | 11 mA at 125 °C - minimal reverse leakage preserves standby power integrity in always-on automotive modules. |
| TJ max. | 175 °C - extended junction temperature rating allows placement near hot components without derating in engine control units. |
| EAS | 7.50 mJ - avalanche energy rating supports robust unclamped inductive switching in motor drive flyback paths. |
| RthJC per package | 1.0 °C/W - enables direct heatsink mounting for thermal management in space-constrained power modules. |
Pinout & Package
TO-263AB (D2PAK) surface-mount package with exposed copper thermal pad on underside; 3-pin configuration (pins 1 and 3 = anodes, pin 2 = common cathode); JEDEC-compliant outline per document 95014.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode (Leg 1) | Input terminal for first Schottky diode; connects to primary-side switch node in synchronous rectifier topologies. |
| Pin 2 | Common Cathode | Shared output node for both diodes; ties directly to output rail or ground return path in dual-output configurations. |
| Pin 3 | Anode (Leg 2) | Input terminal for second Schottky diode; enables independent control of two power paths or interleaved operation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive powertrain and chassis applications including engine control, ADAS power supplies, and battery management systems. |
| Guard ring structure | Enhances edge termination reliability, preventing premature breakdown during voltage transients in 12 V/48 V hybrid architectures. |
| MSL Level 1 (260 °C peak) | Enables standard lead-free reflow assembly without pre-baking, reducing manufacturing complexity and cost. |
| High-frequency operation | Low 1480 pF junction capacitance and 8.0 nH series inductance support clean switching up to 1 MHz in GaN-based converters. |
| 175 °C TJ operation | Eliminates need for thermal derating in under-hood environments where ambient exceeds 105 °C. |
Applications
| Automotive DC/DC Converters | Industrial Switching Power Supplies |
|---|---|
Use Scenario: Step-down conversion from 48 V bus to 12 V auxiliary rail in mild-hybrid vehicles. IC Role / Device Role / Timing Role: Dual-leg Schottky rectifier performing synchronous rectification in phase-shifted full-bridge topology. Use Value: 0.67 V VF at 125 °C reduces conduction loss by ~35 % vs. standard silicon diodes, improving system efficiency by 2.1 % at full load. | Use Scenario: Output rectification in 500 W telecom rectifier with dual +24 V outputs. IC Role / Device Role / Timing Role: Common-cathode dual diode providing independent freewheeling paths for interleaved LLC resonant converters. Use Value: 7.50 mJ EAS rating withstands repetitive inductive kickback during startup/shutdown, eliminating need for external snubbers. |
| Reverse Battery Protection | Motor Drive Freewheeling |
Use Scenario: Polarity protection circuit in vehicle infotainment head units powered from battery input. IC Role / Device Role / Timing Role: Low-VF series-blocking element placed between battery and main DC/DC input. Use Value: 11 mA IR at 125 °C limits reverse leakage power dissipation to <130 mW, preventing thermal runaway during hot-cranking events. | Use Scenario: Freewheeling path for brushed DC motor driver H-bridge in industrial automation actuators. IC Role / Device Role / Timing Role: Dual-anode configuration allows independent flyback current routing during PWM dead-time intervals. Use Value: 850 A IFSM surge rating handles motor stall currents without failure, extending field reliability beyond 10⁶ cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VSKY10100M | TO-220 package, 100 V/10 A single-diode rating; no common-cathode configuration. | Lacks dual-leg integration; requires two devices for same function; higher RthJC (2.5 °C/W). | Select when board layout uses through-hole mounting or thermal mass permits discrete placement. |
| STPS40H100CG | TO-247AC package, 100 V/40 A total IF(AV); common-cathode but rated per device not per leg. | Higher surge rating (1200 A IFSM) but larger footprint; no AEC-Q101 qualification. | Select for non-automotive industrial use requiring higher single-pulse robustness and lower VF at 40 A. |
Compared with VSKY10100M and STPS40H100CG, the VS-43CTQ100SPBF uniquely combines AEC-Q101 qualification, 175 °C operation, and integrated dual-leg common-cathode topology in a surface-mount D2PAK - enabling smaller PCB area, simplified thermal design, and guaranteed automotive-grade reliability without trade-offs in surge or leakage performance.
Availability
VS-43CTQ100SPBF is available at Aetrix Electronics and suitable for automotive power conversion, industrial SMPS, reverse battery protection, and motor drive freewheeling applications requiring stable component supply and long-term lifecycle assurance.
Supply support for VS-43CTQ100SPBF 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, sensing, and signal conditioning solutions for automotive, industrial, and computing markets.
The VS-43CTQ100SPBF belongs to Vishay's high-temperature Schottky rectifier product line, engineered specifically for demanding automotive and industrial power systems where thermal resilience, low conduction loss, and long-term reliability are mandatory.
FAQ
What is the maximum junction temperature rating for the VS-43CTQ100SPBF?
The VS-43CTQ100SPBF has a maximum junction temperature (TJ max.) of +175 °C, verified per Vishay Document Number 94224. This rating enables reliable operation in under-hood automotive environments and high-ambient industrial enclosures without thermal derating. The VS-43CTQ100SPBF maintains specified VF and IR performance up to this limit due to proprietary barrier technology and high-temperature epoxy encapsulation.
Is the VS-43CTQ100SPBF qualified for automotive applications?
Yes, the VS-43CTQ100SPBF is AEC-Q101 qualified, as confirmed in the Vishay datasheet (Revision 15-Aug-15, Doc. No. 94224). This qualification covers stress testing for temperature cycling, humidity bias, and high-temperature operating life - making the VS-43CTQ100SPBF suitable for engine control units, ADAS power supplies, and other automotive powertrain and chassis systems.
What is the forward voltage drop of the VS-43CTQ100SPBF at 20 A and 125 °C?
The forward voltage drop (VF) of the VS-43CTQ100SPBF is 0.67 V at 20 A per leg and TJ = 125 °C, per the Electrical Specifications table in Document 94224. This value reflects actual conduction loss under realistic thermal conditions and is critical for calculating efficiency in high-frequency switching converters. The VS-43CTQ100SPBF achieves this low VF while maintaining tight IR control across temperature.
Does the VS-43CTQ100SPBF have a common-cathode configuration?
Yes, the VS-43CTQ100SPBF uses a common-cathode configuration with two anode terminals (pins 1 and 3) and one shared cathode terminal (pin 2), as shown in the "Base common cathode" diagram on page 1 of Document 94224. This architecture supports dual-output rectification, interleaved freewheeling, and reverse battery protection circuits without external parallel diodes - a key differentiator of the VS-43CTQ100SPBF within its voltage class.
What package type does the VS-43CTQ100SPBF use, and what are its thermal characteristics?
The VS-43CTQ100SPBF uses the TO-263AB (D2PAK) surface-mount package with an exposed copper thermal pad. Its maximum thermal resistance is 1.0 °C/W junction-to-case per package (RthJC), per the Thermal-Mechanical Specifications table. This low RthJC enables efficient heat transfer to external heatsinks or PCB copper planes - essential for maintaining 175 °C TJ capability in high-power-density designs using the VS-43CTQ100SPBF.
VS-43CTQ100SPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- -
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 100 V
- Current - Average Rectified (Io) (per Diode):
- 20A
- Voltage - Forward (Vf) (Max) @ If:
- 810 mV @ 20 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 1 mA @ 100 V
- Operating Temperature - Junction:
- -55°C ~ 175°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263AB (D2PAK)
VS-43CTQ100SPBF FAQ
1.How can I place an order for VS-43CTQ100SPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for VS-43CTQ100SPBF 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-43CTQ100SPBF reliable?
The price and inventory of VS-43CTQ100SPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VS-43CTQ100SPBF is usually 5 days.
3.What payment methods are accepted for VS-43CTQ100SPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VS-43CTQ100SPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VS-43CTQ100SPBF?
VS-43CTQ100SPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VS-43CTQ100SPBF 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-43CTQ100SPBF?
For technical support, including VS-43CTQ100SPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VS-43CTQ100SPBF requirements.
6.How does Aetrix verify that VS-43CTQ100SPBF is sourced from the original manufacturer or authorized distributors?
All VS-43CTQ100SPBF 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-43CTQ100SPBF meets industry standards.
7.What is the process for return or replacement of VS-43CTQ100SPBF?
All VS-43CTQ100SPBF units undergo pre-shipment inspection (PSI). If there is an issue with VS-43CTQ100SPBF, 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-43CTQ100SPBF part is unused and in its original packaging.
Return procedure for VS-43CTQ100SPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VS-43CTQ100SPBF Tags
-
BAV99-7-F
Diodes Incorporated
-
BAT54C-7-F
Diodes Incorporated
-
BAV99,215
Nexperia USA Inc.
-
BAT54SLT1G
onsemi
-
BAV70LT1G
onsemi
-
BAT54CLT1G
onsemi
-
BAT54S-7-F
Diodes Incorporated
-
BAV99LT1G
onsemi
-
BAT54S,215
Nexperia USA Inc.
-
BAS40-04LT1G
onsemi
-
MMBD1503-TP
Micro Commercial Co
-
BAV99WT1G
onsemi
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
