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Vishay General Semiconductor - Diodes Division VS-50WQ03FNTRPBF
- Part No.:
- VS-50WQ03FNTRPBF
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Single Diodes
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
VS-50WQ03FNTRPBF.pdf
- Description:
- DIODE SCHOTTKY 30V 5.5A DPAK
- Quantity:
- Payment:
- Shipping:
Inventory:5,838
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Product details
Overview
VS-50WQ03FNTRPBF from Vishay Semiconductors is a surface-mount high-performance Schottky rectifier in D-PAK (TO-252AA) package, rated for 5.5 A average forward current, 30 V reverse voltage, and 0.35 V forward voltage drop at 5 A and 125 °C. It serves as a low-loss freewheeling or reverse-battery protection diode in compact DC/DC converters and battery-powered systems.
For engineers reviewing the VS-50WQ03FNTRPBF datasheet, VS-50WQ03FNTRPBF pinout, VS-50WQ03FNTRPBF application, or VS-50WQ03FNTRPBF equivalent, key selection criteria include its 3.0 °C/W junction-to-case thermal resistance, 10 mJ non-repetitive avalanche energy rating, MSL Level 1 moisture sensitivity, and D-PAK thermal pad compatibility with standard PCB heatsinking.
Technical Context
This Schottky rectifier uses a single-die construction with integrated guard ring to suppress edge breakdown and improve long-term reliability under repetitive surge and thermal cycling. Its low forward slope resistance (22.22 mΩ) and low junction capacitance (590 pF at 5 V) support high-frequency switching up to several hundred kHz in synchronous rectification and flyback topologies.
The device operates across -40 °C to +150 °C junction temperature range and is characterized for both DC and pulsed conditions - including 320 A non-repetitive surge (5 μs sine) and 130 A (10 ms sine), enabling robust performance in transient-prone power rails and automotive load-dump scenarios.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF(AV) | 5.5 A average forward current at TC = 136 °C, 50 % duty cycle - supports continuous conduction mode operation in mid-power SMPS |
| VRRM / VR | 30 V maximum repetitive/DC reverse voltage - suitable for 24 V nominal systems with margin for transients |
| VF @ 5 A, 125 °C | 0.35 V - enables <1.75 W forward conduction loss at full rated current, reducing thermal load on PCB |
| RthJC | 3.0 °C/W - allows direct thermal coupling to copper pour or heatsink for efficient power dissipation |
| EAS | 10 mJ non-repetitive avalanche energy at TJ = 25 °C - provides limited overvoltage clamping capability during inductive turn-off |
| IRM @ 125 °C | 58 mA reverse leakage - low enough to avoid significant standby power loss in battery backup circuits |
| CT @ 5 V | 590 pF junction capacitance - minimizes switching losses and EMI in high-frequency (>200 kHz) converters |
Pinout & Package
D-PAK (TO-252AA) package with exposed thermal pad (pin 2–4 base tab) and three terminals: anode (pin 1), cathode (pin 3), and electrically connected base tab (pins 2 & 4). The thermal pad must be soldered to ≥2 cm² of internal or external copper for rated thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | Input terminal for forward conduction; connects to source-side of switching node in buck/flyback secondary |
| 3 | Cathode | Output terminal; carries forward current to load or return path; polarity-sensitive for reverse-battery protection |
| 2, 4 (Base Tab) | Cathode (internally tied) | Primary thermal path to PCB; must be soldered to large copper area to achieve RthJC = 3.0 °C/W |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring structure | Suppresses edge leakage and prevents premature avalanche at junction periphery, extending lifetime under thermal stress |
| MSL Level 1 rating | Compatible with standard SMT reflow profiles up to 260 °C peak without baking - reduces manufacturing overhead |
| Low VF slope resistance (22.22 mΩ) | Ensures predictable forward voltage rise with current, simplifying loss modeling and thermal design |
| 150 °C max junction temperature | Enables operation in sealed enclosures or high-ambient environments without derating below 5.5 A |
| Lead (Pb)-free and RoHS-compliant | Fulfills global environmental compliance requirements without sacrificing Schottky performance or reliability |
Applications
| DC/DC Converter Freewheeling Diode | Battery Reverse-Polarity Protection |
|---|---|
Use Scenario: Used in the output stage of 12–24 V input buck converters delivering up to 5 A to industrial sensors or embedded controllers. IC Role / Device Role / Timing Role: Freewheeling diode providing low-loss current path during high-side switch off-time. Use Value: 0.35 V VF at 125 °C reduces conduction loss by ~40 % vs. comparable 45 V Schottkys, lowering thermal design burden. |
Use Scenario: Placed in series with battery input of portable medical monitors or handheld test equipment. IC Role / Device Role / Timing Role: Unidirectional blocking element preventing damage when battery is inserted backward. Use Value: Low 0.46 V VF at 25 °C minimizes voltage drop in normal operation, preserving >98 % of battery voltage at 2 A load. |
| Switching Power Supply Output Rectifier | Automotive Body Control Module (BCM) Clamping |
Use Scenario: Secondary-side rectifier in 24 V offline flyback supplies powering LED lighting drivers or PLC I/O modules. IC Role / Device Role / Timing Role: High-frequency rectifier handling 100–300 kHz switching waveforms with minimal recovery loss. Use Value: 590 pF CT and 5.0 nH LS enable clean turn-off with low ringing, easing EMI filter design. |
Use Scenario: Connected across relay coils or motor drivers in 12 V BCMs to absorb inductive kickback. IC Role / Device Role / Timing Role: Transient voltage clamp limiting back-EMF spikes to ≤30 V during coil de-energization. Use Value: 10 mJ EAS rating withstands repeated 100–200 V/100 μs transients without degradation over 10⁵ cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STPS5L30D | Same 30 V / 5 A rating, but TO-252 package with 3.5 °C/W RthJC and higher VF (0.49 V @ 5 A, 125 °C) | Slightly lower thermal efficiency and higher conduction loss; requires larger copper area for same TC | Select when STMicroelectronics supply chain alignment or dual-sourcing is required; verify layout for 0.5 °C/W higher thermal impedance |
| MBR530LT3G | 30 V / 5 A, DPAK, but 0.52 V VF @ 5 A, 125 °C and no specified EAS rating | Lacks avalanche energy specification; not recommended for inductive clamp or surge-prone locations | Prefer for cost-sensitive, non-safety-critical applications where only basic rectification is needed and transients are filtered upstream |
Compared with STPS5L30D and MBR530LT3G, the VS-50WQ03FNTRPBF delivers superior thermal performance (3.0 °C/W), lowest VF at elevated temperature, and verified 10 mJ avalanche capability - making it the preferred choice for thermally constrained or transient-heavy designs.
Availability
VS-50WQ03FNTRPBF is available at Aetrix Electronics and suitable for DC/DC converters, battery protection circuits, and automotive body electronics requiring stable component supply, consistent parametric performance, and long-term manufacturability.
Supply support for VS-50WQ03FNTRPBF 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 industrial, automotive, and computing markets.
The VS-50WQ03FNTRPBF belongs to Vishay's "WQ" series of high-current Schottky rectifiers designed specifically for space-constrained, high-efficiency power conversion in consumer, telecom, and automotive applications.
FAQ
What is the maximum junction temperature rating for VS-50WQ03FNTRPBF?
The VS-50WQ03FNTRPBF has a maximum junction temperature (TJ max.) of +150 °C, validated across its full operating range from -40 °C to +150 °C. This rating enables reliable operation in sealed enclosures or high-ambient environments without mandatory derating below 5.5 A average forward current, provided thermal design meets the 3.0 °C/W RthJC requirement via proper PCB copper layout.
Does VS-50WQ03FNTRPBF support lead-free reflow assembly?
Yes, VS-50WQ03FNTRPBF is Pb-free and RoHS-compliant, qualified to MSL Level 1 per J-STD-020 with a maximum peak reflow temperature of 260 °C. No pre-baking is required prior to standard SMT reflow processes, simplifying manufacturing flow and reducing risk of moisture-related defects.
What is the avalanche energy rating of VS-50WQ03FNTRPBF and how is it tested?
The VS-50WQ03FNTRPBF is rated for 10 mJ non-repetitive avalanche energy (EAS) at TJ = 25 °C, measured with IAS = 2 A and L = 5 mH. This rating reflects its ability to safely absorb inductive energy during unclamped switching events - such as relay coil turn-off - without permanent degradation, supporting robust design in automotive and industrial control applications.
How does the forward voltage of VS-50WQ03FNTRPBF vary with temperature and current?
VS-50WQ03FNTRPBF exhibits a negative temperature coefficient for forward voltage: VF drops from 0.46 V at 5 A and 25 °C to 0.35 V at 5 A and 125 °C. At 10 A and 125 °C, VF is 0.46 V. This behavior reduces conduction loss at elevated temperatures, improving thermal stability in sustained-load applications like battery chargers or server PSUs.
Is the thermal pad of VS-50WQ03FNTRPBF electrically isolated?
No, the thermal pad (base tab, pins 2 and 4) of VS-50WQ03FNTRPBF is internally connected to the cathode. It must be routed to the cathode net on the PCB and cannot be used as a floating heatsink. Proper connection ensures both optimal thermal performance (3.0 °C/W RthJC) and correct circuit functionality - especially critical in reverse-battery protection configurations.
VS-50WQ03FNTRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- -
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 30 V
- Current - Average Rectified (Io):
- 5.5A
- Voltage - Forward (Vf) (Max) @ If:
- 460 mV @ 5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 3 mA @ 30 V
- Capacitance @ Vr, F:
- 590pF @ 5V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252AA (DPAK)
- Operating Temperature - Junction:
- -40°C ~ 150°C
VS-50WQ03FNTRPBF FAQ
1.How can I place an order for VS-50WQ03FNTRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for VS-50WQ03FNTRPBF 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-50WQ03FNTRPBF reliable?
The price and inventory of VS-50WQ03FNTRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VS-50WQ03FNTRPBF is usually 5 days.
3.What payment methods are accepted for VS-50WQ03FNTRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VS-50WQ03FNTRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VS-50WQ03FNTRPBF?
VS-50WQ03FNTRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VS-50WQ03FNTRPBF 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-50WQ03FNTRPBF?
For technical support, including VS-50WQ03FNTRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VS-50WQ03FNTRPBF requirements.
6.How does Aetrix verify that VS-50WQ03FNTRPBF is sourced from the original manufacturer or authorized distributors?
All VS-50WQ03FNTRPBF 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-50WQ03FNTRPBF meets industry standards.
7.What is the process for return or replacement of VS-50WQ03FNTRPBF?
All VS-50WQ03FNTRPBF units undergo pre-shipment inspection (PSI). If there is an issue with VS-50WQ03FNTRPBF, 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-50WQ03FNTRPBF part is unused and in its original packaging.
Return procedure for VS-50WQ03FNTRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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