My Inquiry
My Account
Vishay General Semiconductor - Diodes Division V20KM120HM3/H
- Part No.:
- V20KM120HM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Single Diodes
- Package:
- 8-PowerTDFN
- Datasheet:
-
V20KM120HM3/H.pdf
- Description:
- DIODE SCHOTTKY 120V 4A FLATPAK
- Quantity:
- Payment:
- Shipping:
Inventory:8,990
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
V20KM120HM3/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 20 A average forward current, with ultra-low 0.45 V forward voltage at 5 A and 125 °C junction temperature - optimized for low-voltage, high-frequency DC/DC converters in automotive and industrial power supplies.
For engineers reviewing the V20KM120HM3/H datasheet, V20KM120HM3/H pinout, V20KM120HM3/H application, or V20KM120HM3/H equivalent, key selection criteria include its AEC-Q101 qualification, 220 A surge rating, 165 °C max junction temperature, thermal resistance of 2.5 °C/W (junction-to-mount), and halogen-free RoHS-compliant construction.
Technical Context
This device uses trench MOS Schottky technology to achieve lower forward voltage and higher efficiency than planar Schottky or standard PN diodes. Its single-die configuration supports unidirectional conduction with cathode-connected terminals on pins 5–8 and anode on pins 1–4, enabling high-density PCB layout in compact power stages.
The V20KM120HM3/H operates across -40 °C to +165 °C junction temperature range and meets J-STD-020 MSL level 1 with 260 °C peak reflow profile. Its 1920 pF junction capacitance at 4.0 V / 1 MHz and low leakage (<0.5 mA at 120 V, 25 °C) support fast switching and minimal reverse recovery loss in synchronous rectification topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 120 V - blocks up to 120 V reverse voltage without breakdown, suitable for 48 V and 60 V bus systems |
| IF(AV) | 20 A - delivers continuous 20 A DC forward current with recommended copper pad area and thermal management |
| VF @ 5 A, 125 °C | 0.45 V - enables high-efficiency operation in high-temp environments like under-hood automotive modules |
| IFSM | 220 A - withstands short-duration surge currents typical during load dump or startup transients |
| TJ max | +165 °C - supports operation in thermally constrained enclosures without derating at full current |
| RθJM | 2.5 °C/W - allows direct mounting to heatsink or metal-core PCB for effective junction-to-mount heat transfer |
| CJ | 1920 pF @ 4 V, 1 MHz - limits capacitive switching loss and EMI generation in >100 kHz converters |
Pinout & Package
Package: FlatPAK 5 × 6 surface-mount package with matte tin-plated leads, UL 94 V-0 molding compound, and AEC-Q101 qualification. Dimensions: 5.00 × 6.20 mm footprint, 0.99 mm height, 8-terminal configuration with dual-anode/dual-cathode layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 | Anode | Parallel-connected anode terminals reduce series resistance and improve current sharing at high load |
| 5, 6, 7, 8 | Cathode | Parallel-connected cathode terminals minimize inductance and enhance thermal spreading to PCB copper |
Key Features
| Feature | Design Value |
|---|---|
| Trench MOS Schottky technology | Enables 0.45 V VF at 5 A/125 °C - reduces conduction loss by ~25 % vs. planar Schottky equivalents |
| AEC-Q101 qualified | Validated for automotive powertrain and body electronics per stress test requirements including HTOL, TC, HTRB |
| FlatPAK 5 × 6 package | Provides 2.5 °C/W RθJM and 75 °C/W RθJA - enables higher power density than SO-8 or TO-252 alternatives |
| Halogen-free & RoHS-compliant | Meets IPC-1752A material declaration requirements and EU Directive 2011/65/EU without exemptions |
| MSL Level 1 | Allows unlimited floor life and 260 °C peak reflow without baking - simplifies SMT line integration |
Applications
| Automotive DC/DC Converters | Industrial 48 V Power Supplies |
|---|---|
Use Scenario: High-efficiency step-down conversion from 48 V battery to 12 V or 5 V rails in ADAS ECUs and infotainment systems. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous buck converter output stage, operating at 200–500 kHz switching frequency. Use Value: 0.45 V VF at 125 °C reduces conduction loss by 1.2 W vs. legacy 0.65 V diodes at 10 A, lowering thermal load in sealed enclosures. | Use Scenario: Secondary-side rectification in isolated 48 V telecom or server PSUs requiring high reliability and low EMI. IC Role / Device Role / Timing Role: Output rectifier in active-clamp forward or LLC resonant converter, handling 20 A continuous current. Use Value: 220 A IFSM withstands transient overloads during hot-swap events; 1920 pF CJ minimizes ringing and dv/dt-induced turn-on. |
| Polarity Protection Circuits | Low-Voltage Motor Drives |
Use Scenario: Reverse-voltage protection for 12 V/24 V input rails in programmable logic controllers and sensor nodes. IC Role / Device Role / Timing Role: Series-connected blocking diode placed upstream of LDOs or microcontrollers to prevent damage from miswired inputs. Use Value: 120 V VRRM provides 5× safety margin against load dump spikes; 0.54 V VF at 5 A/25 °C ensures <0.3 W dissipation at full rated current. | Use Scenario: Freewheeling path in H-bridge motor drivers for BLDC fans, pumps, and actuators in HVAC and factory automation. IC Role / Device Role / Timing Role: Clamp diode across each half-bridge switch, conducting during PWM dead-time and inductive flyback. Use Value: 165 °C TJ max and 2.5 °C/W RθJM allow sustained operation at 15 A RMS with minimal heatsinking in space-constrained modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| V20KM120-M3/H | No AEC-Q101 qualification; identical electrical specs and package | Not approved for automotive use; suitable for industrial/commercial designs only | Select when AEC-Q101 is not required and cost sensitivity outweighs automotive compliance |
| STPS20M120CG-TR | 120 V VRRM, 20 A IF(AV), but VF = 0.72 V @ 20 A/125 °C; TO-277 package | Higher conduction loss; larger footprint and higher RθJA (100 °C/W) | Choose if existing TO-277 footprint must be retained and 0.27 V higher VF is acceptable |
Compared with V20KM120-M3/H, the V20KM120HM3/H adds AEC-Q101 qualification without sacrificing electrical performance; versus STPS20M120CG-TR, it delivers 0.27 V lower forward voltage and 30 % better thermal resistance in a smaller 5 × 6 mm footprint - critical for high-power-density automotive and industrial converters.
Availability
V20KM120HM3/H is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial 48 V power supplies, and polarity protection circuits requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for V20KM120HM3/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, high-efficiency power components.
The V20KM120HM3/H belongs to Vishay's TMBS® Trench MOS Barrier Schottky rectifier product line, engineered specifically for high-current, low-loss operation in automotive and industrial power conversion where thermal performance and AEC-Q101 compliance are mandatory.
FAQ
What is the maximum junction temperature rating for the V20KM120HM3/H?
The V20KM120HM3/H has a maximum junction temperature (TJ) rating of +165 °C, verified per Vishay's datasheet revision 16-Jul-2025. This rating enables reliable operation in thermally demanding environments such as under-hood automotive modules or enclosed industrial power supplies. The device maintains specified electrical characteristics up to this temperature, and thermal design must ensure dPD/dTJ < 1/RθJA to avoid thermal runaway. Derating curves in Figure 1 confirm 20 A operation is sustainable at mount temperatures up to 105 °C with infinite heatsink conditions.
Is the V20KM120HM3/H pin-compatible with the V20KM120-M3/H?
Yes, the V20KM120HM3/H is mechanically and electrically pin-compatible with the V20KM120-M3/H - both use identical FlatPAK 5 × 6 packaging, terminal layout, and marking code "20M12". The only functional difference is AEC-Q101 qualification, which applies exclusively to the HM3 suffix variant. No PCB layout changes are required when upgrading from V20KM120-M3/H to V20KM120HM3/H, making it a drop-in solution for automotive qualification retrofitting.
What does the "HM3" suffix indicate in V20KM120HM3/H?
The "HM3" suffix in V20KM120HM3/H denotes halogen-free, RoHS-compliant construction with full AEC-Q101 qualification - confirmed in Vishay document 87148. It distinguishes this variant from the base "M3" version (e.g., V20KM120-M3/H), which shares identical electrical specs and package but lacks automotive qualification. The "H" in the ordering code specifies 7-inch tape-and-reel packaging (1500 units per reel), while "/H" confirms that packaging format.
What is the forward voltage of the V20KM120HM3/H at 20 A and 125 °C?
The forward voltage (VF) of the V20KM120HM3/H is 0.64 V at 20 A and 125 °C, as specified in the "ELECTRICAL CHARACTERISTICS" table of Vishay document 87148. This value reflects actual conduction loss under high-load, elevated-temperature conditions common in automotive and industrial power stages. At lower currents (e.g., 5 A), VF drops to 0.45 V at the same temperature - confirming strong temperature stability and low-loss performance across its operating range.
Does the V20KM120HM3/H meet JEDEC moisture sensitivity level requirements?
Yes, the V20KM120HM3/H meets MSL Level 1 per J-STD-020, with a maximum peak reflow temperature of 260 °C. This classification means the device has unlimited floor life and requires no baking prior to soldering - simplifying manufacturing flow for high-volume SMT assembly. The qualification is enabled by its FlatPAK 5 × 6 molding compound, which complies with UL 94 V-0 flammability standards and passes JESD201 Class 2 whisker testing.
V20KM120HM3/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):
- 4A
- Voltage - Forward (Vf) (Max) @ If:
- 870 mV @ 20 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 120 V
- Capacitance @ Vr, F:
- 1920pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- FlatPAK (5x6)
- Operating Temperature - Junction:
- -40°C ~ 165°C
V20KM120HM3/H FAQ
1.How can I place an order for V20KM120HM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for V20KM120HM3/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 V20KM120HM3/H reliable?
The price and inventory of V20KM120HM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for V20KM120HM3/H is usually 5 days.
3.What payment methods are accepted for V20KM120HM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for V20KM120HM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for V20KM120HM3/H?
V20KM120HM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your V20KM120HM3/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 V20KM120HM3/H?
For technical support, including V20KM120HM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your V20KM120HM3/H requirements.
6.How does Aetrix verify that V20KM120HM3/H is sourced from the original manufacturer or authorized distributors?
All V20KM120HM3/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 V20KM120HM3/H meets industry standards.
7.What is the process for return or replacement of V20KM120HM3/H?
All V20KM120HM3/H units undergo pre-shipment inspection (PSI). If there is an issue with V20KM120HM3/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 V20KM120HM3/H part is unused and in its original packaging.
Return procedure for V20KM120HM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
V20KM120HM3/H Tags
-
1N4448X-TP
Micro Commercial Co
-
1N4148WX-TP
Micro Commercial Co
-
1N4148TR
onsemi
-
MMSD4148T1G
onsemi
-
MMBD914LT3G
onsemi
-
BAS16HT1G
onsemi
-
1N914BWT
onsemi
-
BAS21LT1G
onsemi
-
LL4148
onsemi
-
BAS16LT1G
onsemi
-
MMSD914T1G
onsemi
-
BAV21W-7-F
Diodes Incorporated
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 …
