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Vishay General Semiconductor - Diodes Division VSS8D2M15-M3/H
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- Part No.:
- VSS8D2M15-M3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Single Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
VSS8D2M15-M3/H.pdf
- Description:
- DIODE SCHOTT 150V 1.8A SLIMSMAW
- Quantity:
- Payment:
- Shipping:
Inventory:8,895
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Product details
Overview
VSS8D2M15-M3/H from Vishay General Semiconductor is a surface-mount Trench MOS Barrier Schottky (TMBS®) rectifier in SlimSMAW (DO-221AD) package, rated for 150 V reverse voltage, 2 A average forward current, and 50 A surge capability, with low 0.64 V forward voltage at 2 A and 125 °C - used for polarity protection and freewheeling in automotive DC/DC converters.
For engineers reviewing the VSS8D2M15-M3/H datasheet, VSS8D2M15-M3/H pinout, VSS8D2M15-M3/H application, or VSS8D2M15-M3/H equivalent, key selection criteria include junction temperature rating up to +175 °C, AEC-Q101 qualification (via HM3 variant), thermal resistance RθJA of 120 °C/W, and compatibility with SOD-128 footprint layouts.
Technical Context
This TMBS® rectifier uses trench MOS barrier technology to achieve lower forward voltage and higher temperature operation than conventional Schottky diodes. Its single-anode/cathode configuration supports unidirectional conduction in high-frequency switching paths, with junction capacitance of 150 pF at 4.0 V enabling fast recovery in DC/DC converter output stages.
The device operates across -40 °C to +175 °C junction temperature range and meets J-STD-020 MSL level 1 with 260 °C peak reflow profile. Its SlimSMAW (DO-221AD) package provides low-profile mounting and thermal performance validated per JEDEC 51-2A (RθJA) and JEDEC 51-14 (RθJM).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 150 V - maximum repetitive reverse blocking voltage before breakdown in polarity protection or flyback clamp circuits |
| IF(AV) | 2 A at 125 °C on 30 mm × 30 mm Al PCB - continuous DC current handling capacity under thermally constrained conditions |
| VF @ 2 A, 125 °C | 0.64 V - low conduction loss enabling >95 % efficiency in 12 V–48 V automotive DC/DC outputs |
| IFSM | 50 A (10 ms half-sine) - surge robustness for inductive load turn-off transients in motor drivers |
| TJ max. | +175 °C - extended thermal margin for under-hood automotive environments without derating |
| CJ | 150 pF @ 4 V, 1 MHz - low junction capacitance minimizing switching losses and EMI in >100 kHz converters |
| RθJA | 120 °C/W - thermal resistance enabling 1.8 W dissipation on standard FR4 with 2 oz copper pad |
Pinout & Package
Package: SlimSMAW (DO-221AD), low-profile surface-mount case with cathode band marking; compatible with SOD-128 footprint; matte tin-plated terminals, J-STD-002 solderable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input terminal for forward conduction path | Connected to source side of power rail; accepts positive voltage relative to cathode during conduction |
| Cathode | Output terminal for forward conduction path | Connected to load or return path; marked by color band; carries forward current to ground or negative rail |
Key Features
| Feature | Design Value |
|---|---|
| Trench MOS Barrier Schottky (TMBS®) | Enables 0.64 V VF at 2 A/125 °C - 150 mV lower than planar Schottky equivalents, reducing conduction loss by ~25 % |
| AEC-Q101 qualified variant available | HM3 suffix version certified for automotive applications - supports qualification of safety-critical power rails without additional testing |
| MSL Level 1, 260 °C peak reflow | Enables single-pass lead-free assembly without moisture sensitivity concerns or baking requirements |
| Halogen-free, RoHS-compliant | Meets IEC 61249-2-21 and JEDEC JESD201 Class 2 whisker resistance - suitable for industrial and automotive supply chains |
| Low-profile SlimSMAW (DO-221AD) | Height ≤ 0.81 mm - enables compact power stage layout in space-constrained modules such as ADAS ECUs and battery management systems |
Applications
| Automotive DC/DC Converters | Polarity Protection Circuits |
|---|---|
Use Scenario: Step-down conversion from 48 V battery to 12 V subsystem rail in mild-hybrid vehicles. IC Role / Device Role / Timing Role: Output rectifier in synchronous buck converter secondary side. Use Value: 0.64 V VF at 125 °C reduces conduction loss by 0.32 W vs. legacy Schottky, improving thermal margin in sealed enclosures. |
Use Scenario: Reverse-voltage protection for USB-C PD ports and infotainment head units. IC Role / Device Role / Timing Role: Series-blocking diode preventing damage from misconnected power sources. Use Value: 150 V VRRM withstands load-dump transients up to ISO 7637-2 Pulse 5a, eliminating need for TVS clamping. |
| Industrial Freewheeling Diodes | High-Frequency Inverters |
Use Scenario: Flyback path for solenoid drivers and relay coils in PLC I/O modules. IC Role / Device Role / Timing Role: Freewheeling diode absorbing inductive kickback energy during switch-off. Use Value: 50 A IFSM handles 100 ms coil de-energization surges without degradation, extending system lifetime. |
Use Scenario: Output rectification in 200 kHz resonant LLC inverters for LED street lighting. IC Role / Device Role / Timing Role: High-speed unidirectional current path in AC-to-DC stage. Use Value: 150 pF CJ limits displacement current and EMI generation, easing EMC filter design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VSS8D2M15HM3/H | AEC-Q101 qualified; identical electrical specs; same SlimSMAW package; HM3 suffix denotes automotive grade | Required for automotive OEM designs needing formal qualification evidence; not needed for commercial-grade systems | Select VSS8D2M15HM3/H when AEC-Q101 compliance documentation is mandatory; otherwise VSS8D2M15-M3/H suffices |
| SS215H | 2 A / 150 V Schottky in SMA package; VF = 0.85 V @ 2 A, 25 °C; RθJA = 170 °C/W; no AEC-Q101 option | Limited to ambient temperatures ≤ 125 °C; unsuitable for under-hood use; requires larger PCB area due to SMA thermal footprint | Use SS215H only in cost-sensitive commercial applications where thermal margin and automotive qualification are non-critical |
Compared with VSS8D2M15-M3/H, the HM3 variant adds formal AEC-Q101 certification without electrical trade-offs, while SS215H offers lower cost but sacrifices 0.21 V forward voltage margin and 50 °C junction temperature capability - impacting reliability in thermally aggressive environments.
Availability
VSS8D2M15-M3/H is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial freewheeling circuits, and polarity protection applications requiring stable component supply, halogen-free compliance, and MSL Level 1 reflow capability.
Supply support for VSS8D2M15-M3/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.
VSS8D2M15-M3/H belongs to Vishay's TMBS® rectifier product line, engineered specifically for high-temperature, high-frequency power conversion in automotive and industrial systems where low VF and rugged surge performance are critical.
FAQ
What is the maximum junction temperature rating for VSS8D2M15-M3/H?
The VSS8D2M15-M3/H has a maximum operating junction temperature of +175 °C, verified per JEDEC test methods and confirmed in its thermal characteristics table. This rating allows reliable operation in under-hood automotive environments and high-power-density industrial converters where ambient temperatures exceed 105 °C. The VSS8D2M15-M3/H maintains stable forward voltage and leakage performance up to this limit.
Is VSS8D2M15-M3/H AEC-Q101 qualified?
No - VSS8D2M15-M3/H is not AEC-Q101 qualified. The AEC-Q101 qualified version is designated VSS8D2M15HM3/H, which shares identical electrical and thermal specifications but includes full automotive qualification documentation and test reports. VSS8D2M15-M3/H is intended for commercial and industrial applications where formal automotive qualification is not required.
What package type does VSS8D2M15-M3/H use, and is it compatible with SOD-128 footprints?
VSS8D2M15-M3/H uses the SlimSMAW (DO-221AD) package, explicitly stated as compatible with SOD-128 case outline dimensions. Its mechanical drawings confirm matching pad layout and terminal spacing, enabling drop-in replacement on existing SOD-128 land patterns without PCB redesign. The package height is ≤ 0.81 mm, supporting ultra-low-profile board assemblies.
What is the forward voltage of VSS8D2M15-M3/H at 2 A and 125 °C?
The forward voltage of VSS8D2M15-M3/H is specified as 0.64 V (typical) and 0.72 V (maximum) at 2 A and 125 °C, per the Electrical Characteristics table. This low VF results directly from its Trench MOS Barrier Schottky structure and enables high-efficiency operation in thermally demanding applications where conventional Schottky diodes would exceed thermal limits.
Does VSS8D2M15-M3/H meet RoHS and halogen-free requirements?
Yes - VSS8D2M15-M3/H is halogen-free and RoHS-compliant, as confirmed in the Mechanical Data section and Ordering Information table. The "M3" suffix denotes compliance with both standards, and the molding compound meets UL 94 V-0 flammability rating. It also passes JESD 201 Class 2 whisker testing, satisfying stringent industrial and automotive supply chain requirements.
VSS8D2M15-M3/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- eSMP®, TMBS®
- Package/Case:
- DO-221AC, SMA Flat Leads
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 150 V
- Current - Average Rectified (Io):
- 1.8A
- Voltage - Forward (Vf) (Max) @ If:
- 700 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 150 µA @ 150 V
- Capacitance @ Vr, F:
- 150pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SlimSMAW (DO-221AD)
- Operating Temperature - Junction:
- -40°C ~ 175°C
VSS8D2M15-M3/H FAQ
1.How can I place an order for VSS8D2M15-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for VSS8D2M15-M3/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 VSS8D2M15-M3/H reliable?
The price and inventory of VSS8D2M15-M3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VSS8D2M15-M3/H is usually 5 days.
3.What payment methods are accepted for VSS8D2M15-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VSS8D2M15-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VSS8D2M15-M3/H?
VSS8D2M15-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VSS8D2M15-M3/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 VSS8D2M15-M3/H?
For technical support, including VSS8D2M15-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VSS8D2M15-M3/H requirements.
6.How does Aetrix verify that VSS8D2M15-M3/H is sourced from the original manufacturer or authorized distributors?
All VSS8D2M15-M3/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 VSS8D2M15-M3/H meets industry standards.
7.What is the process for return or replacement of VSS8D2M15-M3/H?
All VSS8D2M15-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with VSS8D2M15-M3/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 VSS8D2M15-M3/H part is unused and in its original packaging.
Return procedure for VSS8D2M15-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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