Vishay General Semiconductor - Diodes Division VF30120C-E3/4W
- Part No.:
- VF30120C-E3/4W
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Diode Arrays
- Package:
- TO-220-3 Full Pack, Isolated Tab
- Datasheet:
-
VF30120C-E3/4W.pdf
- Description:
- DIODE ARR SCHOTTKY 120V ITO220AB
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
VF30120C-E3/4W from Vishay General Semiconductor is a dual high-voltage trench MOS barrier Schottky rectifier in ITO-220AB package, configured as common cathode with 120 V reverse voltage rating, 15 A average forward current per diode, and ultra-low 0.50 V forward voltage at 5 A and 125 °C. It serves as a freewheeling or OR-ing diode in high-frequency DC/DC converters.
For engineers reviewing the VF30120C-E3/4W datasheet, VF30120C-E3/4W pinout, VF30120C-E3/4W application, or VF30120C-E3/4W equivalent, key selection criteria include its 0.50 V VF at 125 °C, 150 A surge rating, 1500 V isolation (ITO-220AB only), thermal resistance of 4.5 °C/W (junction-to-case), and RoHS-compliant matte tin-plated leads.
Technical Context
This dual Schottky rectifier uses trench MOS technology to achieve low forward voltage and high efficiency in switching power supplies. Its common-cathode configuration enables independent anode control for OR-ing or synchronous rectification topologies.
Rated for 120 V repetitive peak reverse voltage and 150 A non-repetitive surge current, it operates up to 150 °C junction temperature and meets J-STD-020 MSL Level 1 with 245 °C reflow peak tolerance - specific to D2PAK, though ITO-220AB supports 275 °C solder bath per JESD 22-B106.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 120 V - blocks up to 120 V reverse bias without breakdown, suitable for 48 V and 60 V bus systems |
| IF(AV) per diode | 15 A - delivers continuous 15 A forward current per diode at TA = 25 °C with heatsink |
| VF at IF = 5 A, TJ = 125 °C | 0.50 V - enables ultra-low conduction loss in thermally stressed environments |
| IFSM | 150 A - withstands 8.3 ms half-sine surge, supporting robust start-up and fault handling |
| RθJC | 4.5 °C/W - junction-to-case thermal resistance for ITO-220AB package, critical for heatsink sizing |
| Isolation Voltage | 1500 VAC - dielectric strength between terminals and heatsink, unique to ITO-220AB variant |
| EAS | 130 mJ - non-repetitive avalanche energy per diode at TJ = 25 °C, L = 60 mH |
Pinout & Package
VF30120C-E3/4W is housed in ITO-220AB package - insulated TO-220 variant with electrically isolated tab enabling direct heatsink mounting without insulator. The case provides 1500 VAC isolation between terminals and heatsink.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode 1 | Input terminal for first Schottky diode; connects to source-side node in OR-ing or freewheeling path |
| Pin 2 | Cathode (common) | Shared cathode node for both diodes; ties to output rail or ground reference point |
| Pin 3 | Anode 2 | Input terminal for second Schottky diode; enables dual-input redundancy or phase interleaving |
Key Features
| Feature | Design Value |
|---|---|
| Trench MOS Schottky technology | Enables 0.50 V VF at 5 A and 125 °C - reduces conduction loss by >25 % vs. planar Schottky counterparts |
| Common-cathode dual configuration | Supports independent anode routing for redundant power inputs or interleaved converter phases |
| 1500 VAC isolation (ITO-220AB) | Eliminates need for thermal pad insulation when mounted to grounded heatsink |
| RoHS-compliant, matte tin-plated leads | Ensures reliable solderability per J-STD-002 and JESD 22-B102, with JESD 201 Class 1A whisker resistance |
| MSL Level 1 (D2PAK) / 275 °C solder bath (ITO-220AB) | Validates compatibility with standard lead-free reflow and wave soldering processes |
Applications
| OR-ing Power Supplies | High-Frequency DC/DC Converters |
|---|---|
Use Scenario: Dual 48 V input rails feeding a single load with automatic failover on rail loss. IC Role / Device Role / Timing Role: Dual Schottky OR-ing diode providing low-loss, reverse-polarity–protected power path selection. Use Value: 0.50 V VF at 125 °C minimizes heat generation during sustained 15 A operation, improving system efficiency and thermal margin. | Use Scenario: Secondary-side synchronous rectification in 300 kHz isolated flyback or forward converter. IC Role / Device Role / Timing Role: Freewheeling diode replacing MOSFET gate drive complexity while maintaining high efficiency. Use Value: 10,000 V/μs dV/dt rating ensures stable commutation during fast-switching transitions without false turn-on. |
| Reverse Battery Protection | Industrial Motor Drive Freewheeling |
Use Scenario: 24 V vehicle or battery-powered equipment requiring protection against accidental reverse battery connection. IC Role / Device Role / Timing Role: Series-connected Schottky blocking diode in main power feed path. Use Value: 120 V VRRM and 150 A IFSM tolerate jump-start surges and load dump transients without failure. | Use Scenario: Snubberless freewheeling path across inductive motor windings in 10–20 kHz PWM drives. IC Role / Device Role / Timing Role: Clamp diode dissipating stored inductive energy during switch-off. Use Value: 130 mJ EAS rating absorbs single-event inductive spikes without avalanche degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| V30120C-E3/4W | TO-220AB package, RθJC = 2.2 °C/W, no isolation | Lower thermal resistance but requires insulating pad on heatsink | Select when thermal performance outweighs isolation needs and PCB layout allows insulation |
| VB30120C-E3/4W | D2PAK (TO-263AB) package, RθJC = 2.2 °C/W, surface-mount compatible | No isolation; optimized for automated SMT assembly and compact layouts | Select for space-constrained, high-volume production where reflow compatibility is mandatory |
Compared with VF30120C-E3/4W, V30120C-E3/4W offers better thermal dissipation but adds insulation overhead, while VB30120C-E3/4W enables SMT scalability at the cost of manual heatsink attachment complexity and zero isolation capability.
Availability
VF30120C-E3/4W is available at Aetrix Electronics and suitable for high-frequency DC/DC converters, OR-ing power supplies, and reverse battery protection requiring stable component supply and traceable sourcing.
Supply support for VF30120C-E3/4W 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 General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and optoelectronics with emphasis on reliability and power efficiency.
The TMBS® (Trench MOS Barrier Schottky) product line delivers ultra-low VF Schottky rectifiers for high-efficiency power conversion in telecom, industrial, and automotive systems.
FAQ
What is the maximum junction temperature rating for VF30120C-E3/4W?
The VF30120C-E3/4W has a maximum operating junction temperature of +150 °C, validated across its full rated current range and supported by thermal derating curves in the official Vishay datasheet (Document Number: 89041). This rating enables reliable operation in enclosed industrial enclosures or under sustained load conditions where ambient temperatures approach 85 °C.
Does VF30120C-E3/4W support lead-free soldering processes?
Yes, VF30120C-E3/4W is qualified for lead-free soldering: its matte tin-plated leads meet J-STD-002 and JESD 22-B102 solderability standards, and the device withstands 275 °C solder bath exposure for 10 seconds per JESD 22-B106 - confirming compatibility with standard wave and selective soldering profiles.
What is the isolation voltage rating of VF30120C-E3/4W?
The VF30120C-E3/4W, packaged in ITO-220AB, provides 1500 VAC isolation between terminals and heatsink (t = 1 minute), as specified in the Vishay datasheet. This eliminates the need for insulating pads when mounting to a grounded heatsink - a key differentiator versus non-isolated TO-220AB variants like V30120C-E3/4W.
How does the forward voltage of VF30120C-E3/4W compare at elevated temperature?
At IF = 5 A and TJ = 125 °C, VF30120C-E3/4W achieves a typical forward voltage of 0.50 V - significantly lower than conventional Schottky rectifiers. This value is confirmed in the Electrical Characteristics table (page 2, Document 89041) and reflects stable performance under thermal stress, directly reducing conduction losses in high-ambient environments.
What are the key mechanical differences between VF30120C-E3/4W and V30120C-E3/4W?
VF30120C-E3/4W uses the ITO-220AB package with electrically isolated tab (1500 VAC), while V30120C-E3/4W uses standard TO-220AB with conductive tab. Both share identical pinout (Pin 1 = A1, Pin 2 = K, Pin 3 = A2) and electrical specs, but VF30120C-E3/4W enables direct grounded heatsink mounting without insulation hardware.
VF30120C-E3/4W Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- TMBS®
- Package/Case:
- TO-220-3 Full Pack, Isolated Tab
- Packaging:
- Tube
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 120 V
- Current - Average Rectified (Io) (per Diode):
- 15A
- Voltage - Forward (Vf) (Max) @ If:
- 970 mV @ 15 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 800 µA @ 120 V
- Operating Temperature - Junction:
- -40°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ITO-220AB
VF30120C-E3/4W FAQ
1.How can I place an order for VF30120C-E3/4W through Aetrix?
Please submit a Request for Quotation (RFQ) for VF30120C-E3/4W 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 VF30120C-E3/4W reliable?
The price and inventory of VF30120C-E3/4W are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VF30120C-E3/4W is usually 5 days.
3.What payment methods are accepted for VF30120C-E3/4W?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VF30120C-E3/4W transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VF30120C-E3/4W?
VF30120C-E3/4W orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VF30120C-E3/4W 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 VF30120C-E3/4W?
For technical support, including VF30120C-E3/4W datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VF30120C-E3/4W requirements.
6.How does Aetrix verify that VF30120C-E3/4W is sourced from the original manufacturer or authorized distributors?
All VF30120C-E3/4W 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 VF30120C-E3/4W meets industry standards.
7.What is the process for return or replacement of VF30120C-E3/4W?
All VF30120C-E3/4W units undergo pre-shipment inspection (PSI). If there is an issue with VF30120C-E3/4W, 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 VF30120C-E3/4W part is unused and in its original packaging.
Return procedure for VF30120C-E3/4W:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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