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Vishay General Semiconductor - Diodes Division V30KM120HM3/H
- Part No.:
- V30KM120HM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Single Diodes
- Package:
- 8-PowerTDFN
- Datasheet:
-
V30KM120HM3/H.pdf
- Description:
- DIODE SCHOTTKY 120V 4.1A FLATPAK
- Quantity:
- Payment:
- Shipping:
Inventory:2,930
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Product details
Overview
V30KM120HM3/H from Vishay General Semiconductor is a high-current-density Trench MOS Barrier Schottky (TMBS®) rectifier in FlatPAK 5 × 6 package, rated for 120 V reverse voltage and 30 A average forward current. It delivers ultra-low forward voltage (0.43 V at 5 A, 125 °C), enabling high-efficiency operation in low-voltage DC/DC converters and polarity protection circuits.
For engineers reviewing the V30KM120HM3/H datasheet, V30KM120HM3/H pinout, V30KM120HM3/H application, or V30KM120HM3/H equivalent, key selection criteria include its AEC-Q101 qualification, 165 °C max junction temperature, 240 A surge rating, and thermal resistance of 2.5 °C/W (junction-to-mount) with infinite heatsink.
Technical Context
This device uses trench MOS Schottky technology to achieve lower VF and higher current density than planar Schottky diodes. Its single-diode configuration and matte tin-plated FlatPAK 5 × 6 terminals support high-reliability soldering per J-STD-002 and JESD 22-B102.
The V30KM120HM3/H is halogen-free, RoHS-compliant, and qualified to AEC-Q101 - confirmed by the HM3 suffix. Its junction capacitance is 2500 pF at 4.0 V / 1 MHz, and reverse leakage remains ≤7 mA at 120 V and 125 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 120 V - supports input rails up to 120 V DC without breakdown |
| IF(AV) | 30 A - continuous DC output capability with proper thermal management |
| VF @ 5 A, 125 °C | 0.43 V - minimizes conduction loss in high-temp automotive environments |
| IFSM | 240 A - withstands short-duration inrush or fault currents in power supplies |
| TJ max | 165 °C - enables operation in under-hood automotive or industrial enclosures |
| RθJM | 2.5 °C/W - requires mounting on thermally optimized copper pad for effective heat transfer |
| CJ | 2500 pF @ 4 V - impacts switching speed and EMI in high-frequency converters |
Pinout & Package
Package: FlatPAK 5 × 6 surface-mount package with 8 terminals; matte tin-plated leads, MSL level 1, 260 °C peak reflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 | Anode (common) | Four parallel anode connections reduce series resistance and improve current sharing |
| 5, 6, 7, 8 | Cathode (common) | Four parallel cathode connections enhance thermal dissipation and current handling |
Key Features
| Feature | Design Value |
|---|---|
| Trench MOS Schottky architecture | Enables 0.43 V forward drop at 5 A/125 °C - 15–20 % lower than comparable planar Schottkys |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
| FlatPAK 5 × 6 thermal performance | RθJM = 2.5 °C/W allows >2× higher power density vs. SO-8 or TO-252 equivalents |
| Halogen-free & RoHS-compliant | Meets global environmental compliance requirements without compromising solderability or whisker resistance |
Applications
| Automotive DC/DC Converters | Industrial Power Supplies |
|---|---|
Use Scenario: 12 V → 5 V/3.3 V buck converter in engine control units (ECUs) and ADAS modules. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous rectification topology, operating continuously at 125 °C ambient. Use Value: 0.43 V VF reduces conduction loss by ~0.8 W vs. standard Schottky at 5 A, lowering thermal stress on PCB. | Use Scenario: Output rectification in 48 V telecom and server PSUs with high efficiency targets (>94 %). IC Role / Device Role / Timing Role: Primary output rectifier handling 20–30 A DC load with minimal voltage drop. Use Value: 30 A IF(AV) and 240 A IFSM support high-power density designs without paralleling devices. |
| Polarity Protection Circuits | Low-Voltage Freewheeling |
Use Scenario: Reverse-voltage protection at battery inputs of portable medical devices and industrial sensors. IC Role / Device Role / Timing Role: Series-connected blocking diode preventing damage during incorrect battery insertion. Use Value: 120 V VRRM provides margin against load-dump transients; low VF avoids unnecessary voltage drop in 5–24 V systems. | Use Scenario: Freewheeling path for inductive loads (e.g., solenoids, relays) in motor drive gate drivers. IC Role / Device Role / Timing Role: Fast recovery path for stored inductor energy, minimizing voltage spikes. Use Value: Low junction capacitance (2500 pF) limits reverse recovery charge, reducing EMI and snubber losses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| V30KM120-M3/H | No AEC-Q101 qualification; same electrical specs and package | Not suitable for automotive production; acceptable for industrial/commercial use | Select when AEC-Q101 is not required and cost optimization is prioritized |
| STPS30H12CG | TO-277A package; 30 A/120 V; VF = 0.69 V @ 30 A/125 °C; no AEC-Q101 | Higher thermal resistance (RθJA ≈ 40 °C/W); less suited for compact layouts | Choose only if legacy TO-277A footprint must be retained; expect higher board-level heating |
Compared with V30KM120-M3/H and STPS30H12CG, the V30KM120HM3/H uniquely combines AEC-Q101 qualification, ultra-low 0.43 V forward drop at elevated temperature, and FlatPAK's superior thermal resistance - making it the preferred choice for space-constrained, high-reliability automotive power stages.
Availability
V30KM120HM3/H is available at Aetrix Electronics and suitable for automotive ECUs, industrial DC/DC converters, and battery-powered polarity protection systems requiring stable component supply and long-term lifecycle assurance.
Supply support for V30KM120HM3/H 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 high-reliability and power-efficient solutions.
The V30KM120HM3/H belongs to Vishay's TMBS® Trench MOS Barrier Schottky family, engineered specifically for high-current, low-VF operation in automotive and industrial power conversion where thermal performance and qualification rigor are critical.
FAQ
What is the maximum junction temperature rating for the V30KM120HM3/H?
The V30KM120HM3/H has a maximum junction temperature (TJ) of +165 °C, verified per datasheet revision 16-Jul-2025. This rating enables reliable operation in under-hood automotive environments and high-ambient industrial settings. Derating curves in Figure 1 confirm usable current capacity down to -40 °C ambient, with thermal resistance RθJM = 2.5 °C/W when mounted on an infinite heatsink.
Is the V30KM120HM3/H qualified for automotive applications?
Yes, the V30KM120HM3/H is AEC-Q101 qualified, as explicitly stated in the Vishay datasheet (Document Number 87144) and indicated by the "HM3" suffix. This qualification covers stress tests including high-temperature reverse bias, temperature cycling, and unbiased highly accelerated stress testing - confirming suitability for automotive powertrain and body electronics.
What does the "HM3" suffix mean in V30KM120HM3/H?
The "HM3" suffix in V30KM120HM3/H denotes halogen-free, RoHS-compliant construction with full AEC-Q101 qualification. It distinguishes this variant from the non-automotive "M3" version (e.g., V30KM120-M3/H), which shares identical electrical specs and package but lacks automotive reliability validation and associated test reporting.
What is the forward voltage of the V30KM120HM3/H at 30 A and 125 °C?
The V30KM120HM3/H exhibits a forward voltage of 0.67 V at IF = 30 A and TJ = 125 °C, per the Electrical Characteristics table on page 2 of the official datasheet. This value is measured under pulsed conditions (≤5 ms) and reflects real-world performance in high-load, high-temperature operation such as automotive DC/DC converters.
Does the V30KM120HM3/H have a specified junction-to-ambient thermal resistance?
Yes, the V30KM120HM3/H has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W under free-air conditions mounted on the recommended copper pad area, as documented in the Thermal Characteristics table. This value assumes no external heatsink and is used for worst-case ambient thermal design; RθJM = 2.5 °C/W applies when mounted on an infinite heatsink.
V30KM120HM3/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- -
- Package/Case:
- 8-PowerTDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 120 V
- Current - Average Rectified (Io):
- 4.1A
- Voltage - Forward (Vf) (Max) @ If:
- 930 mV @ 30 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 700 µA @ 120 V
- Capacitance @ Vr, F:
- 2500pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- FlatPAK (5x6)
- Operating Temperature - Junction:
- -40°C ~ 165°C
V30KM120HM3/H FAQ
1.How can I place an order for V30KM120HM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for V30KM120HM3/H 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 V30KM120HM3/H reliable?
The price and inventory of V30KM120HM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for V30KM120HM3/H is usually 5 days.
3.What payment methods are accepted for V30KM120HM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for V30KM120HM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for V30KM120HM3/H?
V30KM120HM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your V30KM120HM3/H 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 V30KM120HM3/H?
For technical support, including V30KM120HM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your V30KM120HM3/H requirements.
6.How does Aetrix verify that V30KM120HM3/H is sourced from the original manufacturer or authorized distributors?
All V30KM120HM3/H 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 V30KM120HM3/H meets industry standards.
7.What is the process for return or replacement of V30KM120HM3/H?
All V30KM120HM3/H units undergo pre-shipment inspection (PSI). If there is an issue with V30KM120HM3/H, 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 V30KM120HM3/H part is unused and in its original packaging.
Return procedure for V30KM120HM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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