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Vishay General Semiconductor - Diodes Division VS-42CTQ030SPBF
- Part No.:
- VS-42CTQ030SPBF
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
VS-42CTQ030SPBF.pdf
- Description:
- DIODE ARR SCHOTT 30V 20A TO263AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,737
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Product details
Overview
VS-42CTQ030SPBF from Vishay Semiconductors is a high-performance dual common-cathode Schottky rectifier module rated for 30 V reverse voltage and 2 × 20 A average forward current per leg, with 0.38 V forward voltage at 20 A and 125 °C junction temperature. It features center-tap configuration, AEC-Q101 qualification, and TO-263AB (D2PAK) packaging - optimized for switching power supplies, reverse battery protection, and freewheeling applications in automotive and industrial systems.
For engineers reviewing the VS-42CTQ030SPBF datasheet, VS-42CTQ030SPBF pinout, VS-42CTQ030SPBF application, or VS-42CTQ030SPBF equivalent, key selection criteria include its 150 °C maximum junction temperature, low 2.0 °C/W thermal resistance per leg, 13 mJ non-repetitive avalanche energy rating, and MSL Level 1 moisture sensitivity compliance.
Technical Context
This device integrates two independent Schottky die in a single common-cathode configuration, enabling bidirectional current handling with shared cathode terminal. Its proprietary barrier technology ensures stable operation up to 150 °C TJ while maintaining low VF and moderate IR across temperature.
The TO-263AB package provides direct thermal path via exposed copper tab, supporting DC operation at TC = 121 °C with 20 A per leg. It delivers high dV/dt immunity (10,000 V/μs), low 2840 pF junction capacitance at 5 V, and 8.0 nH typical series inductance - critical for high-frequency switching efficiency and EMI control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR (Max DC Reverse Voltage) | 30 V - defines maximum continuous blocking capability in reverse bias without breakdown |
| IF(AV) per leg | 20 A - sustained DC or rectangular-wave forward current per diode leg at TC = 121 °C |
| VF at 20 A / 125 °C | 0.38 V - low conduction loss enabling high-efficiency power conversion in compact thermal designs |
| RthJC per leg | 2.0 °C/W - enables high-power dissipation with minimal junction-to-case temperature rise under DC load |
| EAS per leg | 13 mJ - quantifies unclamped inductive switching robustness during transient overvoltage events |
| TJ max | 150 °C - supports operation in under-hood automotive and high-ambient industrial environments |
| MSL Level | Level 1 (J-STD-020) - allows unlimited floor life and reflow up to 260 °C peak without baking |
Pinout & Package
VS-42CTQ030SPBF uses the TO-263AB (D2PAK) surface-mount package with exposed thermal pad. The three-terminal configuration supports dual-anode, common-cathode topology for center-tap rectification or synchronous freewheeling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Anode A) | First Schottky anode | Connects to first input/output node in dual-leg topology; electrically isolated from Pin 3 |
| 2 (Cathode) | Common cathode | Shared return path for both diode legs; bonded to exposed thermal pad for heat sinking |
| 3 (Anode B) | Second Schottky anode | Connects to second input/output node; enables symmetrical dual-channel operation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Guard ring structure | Enhances ruggedness against edge breakdown and improves long-term stability under repetitive surge stress |
| High-purity epoxy encapsulation | Provides mechanical integrity and moisture resistance meeting IPC/JEDEC standards for harsh environments |
| Low 8.0 nH series inductance | Minimizes voltage overshoot and ringing during fast-switching transitions in SMPS and motor drives |
| 10,000 V/μs dV/dt rating | Ensures immunity to rapid voltage transients in noisy industrial or automotive power systems |
Applications
| Automotive DC-DC Converters | Industrial Switch-Mode Power Supplies |
|---|---|
|
Use Scenario: High-efficiency 12 V to 5 V/3.3 V buck converters in engine control units and ADAS modules. IC Role / Device Role / Timing Role: Freewheeling diode replacing MOSFET body diode to reduce conduction loss and improve light-load efficiency. Use Value: 0.38 V VF at 20 A/125 °C lowers power dissipation by ~35% vs. standard Schottky alternatives, reducing heatsink requirements. |
Use Scenario: Output rectification in 48 V telecom and server PSUs operating at >200 kHz switching frequency. IC Role / Device Role / Timing Role: Dual-leg synchronous rectifier enabling interleaved or phase-shifted topologies with shared cathode return. Use Value: 2840 pF CT at 5 V and 8.0 nH LS support clean zero-voltage switching transitions and lower EMI generation. |
| Reverse Battery Protection | Motor Drive Freewheeling |
|
Use Scenario: Input polarity protection in vehicle infotainment and telematics systems powered from 12 V battery rail. IC Role / Device Role / Timing Role: Low-loss series-blocking diode placed between battery and system input, conducting only during correct polarity. Use Value: 0.48 V VF at 20 A/25 °C minimizes voltage drop and power loss during normal operation, preserving system headroom. |
Use Scenario: Clamp diodes across H-bridge motor windings in BLDC and stepper drivers. IC Role / Device Role / Timing Role: Bidirectional energy recirculation path absorbing inductive kickback during PWM commutation. Use Value: 13 mJ EAS rating and 1100 A IFSM surge capability withstand repeated inductive turn-off transients without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VSKT42/03 | Same 30 V / 2 × 20 A rating but TO-220AC package; higher RthJC (3.0 °C/W); no AEC-Q101 qualification | Limited to commercial-temperature industrial use; unsuitable for under-hood automotive deployment | Select when cost-sensitive non-automotive designs prioritize through-hole assembly over thermal performance |
| STPS4030CG | 30 V / 2 × 20 A, TO-263AB package, but 0.49 V VF at 20 A/125 °C; not AEC-Q101 qualified; 1000 A IFSM | Lower surge rating and missing automotive qualification limit use in safety-critical or high-reliability systems | Consider for cost-optimized consumer or white-goods applications where 0.11 V higher VF is acceptable |
Compared with VSKT42/03 and STPS4030CG, the VS-42CTQ030SPBF uniquely combines AEC-Q101 qualification, 150 °C TJ rating, and lowest VF (0.38 V) among TO-263AB-packaged 30 V dual Schottkys - making it the preferred choice for thermally constrained automotive and industrial power stages requiring long-term reliability.
Availability
VS-42CTQ030SPBF is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial switch-mode power supplies, reverse battery protection circuits, and motor drive freewheeling applications requiring stable component supply and long-term production continuity.
Supply support for VS-42CTQ030SPBF 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-42CTQ030SPBF belongs to Vishay's "Q" series of high-performance Schottky rectifiers, engineered specifically for low-VF, high-TJ operation in demanding power conversion and protection roles.
FAQ
What is the maximum junction temperature rating for VS-42CTQ030SPBF?
The VS-42CTQ030SPBF has a maximum junction temperature (TJ max) of +150 °C, verified per AEC-Q101 stress testing and supported by its 2.0 °C/W thermal resistance per leg. This rating allows reliable operation in under-hood automotive environments and high-ambient industrial enclosures where conventional Schottky diodes would derate significantly. The VS-42CTQ030SPBF maintains stable VF and IR characteristics up to this limit due to proprietary barrier technology.
Is VS-42CTQ030SPBF pin-compatible with VS-42CTQ030-1PbF?
No, VS-42CTQ030SPBF and VS-42CTQ030-1PbF are not pin-compatible. VS-42CTQ030SPBF uses the TO-263AB (D2PAK) package with three terminals (Anode–Cathode–Anode), while VS-42CTQ030-1PbF uses the TO-262AA (I²PAK) package with identical pin numbering but different mechanical footprint and thermal pad layout. PCB layouts must be redesigned when substituting between these variants. Both share identical electrical specifications and AEC-Q101 qualification.
Does VS-42CTQ030SPBF support lead-free reflow soldering?
Yes, VS-42CTQ030SPBF is RoHS-compliant and fully lead-free (PbF suffix), qualified for lead-free reflow soldering per J-STD-020 with a maximum peak temperature of 260 °C. It meets MSL Level 1, meaning it can be stored indefinitely at ambient conditions without baking prior to assembly. The high-purity epoxy encapsulation ensures mechanical integrity and moisture resistance throughout the reflow profile.
What is the avalanche energy rating of VS-42CTQ030SPBF?
The VS-42CTQ030SPBF has a non-repetitive avalanche energy rating (EAS) of 13 mJ per leg, measured at TJ = 25 °C with IAS = 3 A and L = 2.90 mH. This value reflects its ability to absorb inductive energy during unclamped switching events - critical for freewheeling and reverse-battery protection applications. The guard ring structure enhances ruggedness, allowing repeated operation within this energy limit without parametric shift.
Can VS-42CTQ030SPBF be used in parallel configurations?
VS-42CTQ030SPBF is not recommended for parallel operation across multiple devices due to inherent forward voltage mismatch between lots and temperature-dependent VF drift. Its dual-die, common-cathode architecture is designed for internal channel balancing - not inter-device paralleling. For higher current needs, select a single higher-rated part (e.g., VS-60CTQ030SPBF) or verify matching via binning and thermal coupling if parallel use is unavoidable.
VS-42CTQ030SPBF 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):
- 30 V
- Current - Average Rectified (Io) (per Diode):
- 20A
- Voltage - Forward (Vf) (Max) @ If:
- 480 mV @ 20 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 3 mA @ 30 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263AB (D2PAK)
VS-42CTQ030SPBF FAQ
1.How can I place an order for VS-42CTQ030SPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for VS-42CTQ030SPBF 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-42CTQ030SPBF reliable?
The price and inventory of VS-42CTQ030SPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VS-42CTQ030SPBF is usually 5 days.
3.What payment methods are accepted for VS-42CTQ030SPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VS-42CTQ030SPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VS-42CTQ030SPBF?
VS-42CTQ030SPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VS-42CTQ030SPBF 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-42CTQ030SPBF?
For technical support, including VS-42CTQ030SPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VS-42CTQ030SPBF requirements.
6.How does Aetrix verify that VS-42CTQ030SPBF is sourced from the original manufacturer or authorized distributors?
All VS-42CTQ030SPBF 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-42CTQ030SPBF meets industry standards.
7.What is the process for return or replacement of VS-42CTQ030SPBF?
All VS-42CTQ030SPBF units undergo pre-shipment inspection (PSI). If there is an issue with VS-42CTQ030SPBF, 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-42CTQ030SPBF part is unused and in its original packaging.
Return procedure for VS-42CTQ030SPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VS-42CTQ030SPBF Tags
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BAV99,215
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BAT54S-7-F
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BAV99LT1G
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BAT54S,215
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