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Vishay General Semiconductor - Diodes Division SM6S10A-E3/2D
- Part No.:
- SM6S10A-E3/2D
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-218AB
- Datasheet:
-
SM6S10A-E3/2D.pdf
- Description:
- TVS DIODE 10VWM 17VC DO218AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,328
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Product details
Overview
SM6S10A-E3/2D from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) designed for automotive load dump protection in 12 V systems. It features a 10 V stand-off voltage (VWM), 11.1–12.3 V breakdown range (VBR), 17.0 V clamping voltage at 271 A peak pulse current, 4600 W peak pulse power (10/1000 μs), and AEC-Q101 qualification for under-hood applications.
For engineers reviewing the SM6S10A-E3/2D datasheet, SM6S10A-E3/2D pinout, SM6S10A-E3/2D application, or SM6S10A-E3/2D equivalent, this device delivers verified high-temperature operation up to TJ = 175 °C, low leakage (<15 μA at VWM), and DO-218AB package compatibility with ISO 7637-2 surge compliance - critical for automotive power rail protection design validation.
Technical Context
The SM6S10A-E3/2D operates as a unidirectional avalanche diode with anode-connected metal heatsink, optimized for fast clamping of load dump transients in automotive alternator circuits. Its junction passivation and anisotropic rectifier technology enable stable performance across -55 °C to +175 °C ambient and case temperatures.
It sustains 600 A non-repetitive forward surge current (IFSM, 8.3 ms half-sine) and exhibits 0.95 °C/W typical thermal resistance (RθJC), enabling effective heat transfer to PCB copper or external heatsinking. The device meets MSL Level 1 per J-STD-020 and passes JESD201 Class 2 whisker testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC bias margin in 12 V automotive systems. |
| VBR (min/max) | 11.1 V / 12.3 V - Measured at 5 mA IT; ensures predictable turn-on threshold with ≤10 % tolerance for robust overvoltage detection. |
| VC @ IPPM | 17.0 V - Clamping voltage at 271 A (10/1000 μs); limits downstream IC stress to <17 V during worst-case load dump events. |
| PPPM (10/1000 μs) | 4600 W - Peak pulse power handling; supports full ISO 7637-2 Pulse 5a (load dump) waveform without failure. |
| TJ max. | +175 °C - Maximum junction temperature rating; enables placement near hot engine control units without derating. |
| ID @ VWM | <15 μA - Reverse leakage at 10 V; minimizes standby power loss and avoids false triggering in low-current sensor circuits. |
| Package | DO-218AB - Surface-mount outline with integrated metal heatsink; provides low-inductance path and 2.55 g unit weight for automated assembly. |
Pinout & Package
DO-218AB package features two terminals: Lead 1 (cathode) and Lead 2/metal heatsink (anode). The anode is electrically connected to the exposed metal base, requiring PCB layout with appropriate thermal pad and isolation clearance. Polarity is marked by cathode band on molded body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Lead 1 | Cathode | Connected to protected line (e.g., battery rail); carries transient current into anode during clamping. |
| Lead 2 / Metal Heatsink | Anode | Electrically and thermally connected to PCB ground plane; serves as primary heat dissipation path and circuit reference node. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - required for ECUs and body control modules. |
| Junction passivation | Stable VBR and low leakage maintained after 1000 hrs at TJ = 175 °C - prevents parameter drift in long-life under-hood deployments. |
| MSL Level 1 | Reflow-compatible up to 245 °C peak without moisture-induced cracking - eliminates pre-bake requirement for high-volume SMT lines. |
| ISO 7637-2 compliant | Withstands Pulse 5a (load dump) up to 35 V, 400 ms duration - directly protects CAN/LIN transceivers and microcontrollers on 12 V supply rails. |
| Low VF (1.9 V @ 100 A) | Minimizes forward conduction loss during sustained overvoltage events - reduces thermal stress during multi-pulse load dump scenarios. |
Applications
| Automotive Load Dump Protection | 12 V Power Rail Surge Suppression |
|---|---|
Use Scenario: Protecting engine control units (ECUs) during alternator field-circuit disconnection, generating up to 35 V, 400 ms transients. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between battery rail and ground, clamping excess energy before it reaches downstream regulators and MCUs. Use Value: Limits peak voltage to ≤17.0 V at 271 A, preventing latch-up or permanent damage to 5 V/3.3 V logic supplies and CAN transceivers. |
Use Scenario: Safeguarding infotainment head units and ADAS camera modules against battery voltage spikes during jump-start or cold-cranking. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main 12 V input, coordinated with upstream fuses and downstream LDOs to define system-level fault tolerance. Use Value: Delivers 4600 W pulse power handling with <15 μA leakage, ensuring no impact on sleep-mode current budgets while surviving repeated surges. |
| Under-Hood Sensor Interface Protection | Industrial 12 V DC Power Input |
Use Scenario: Shielding oxygen sensors, knock sensors, and MAP sensors from inductive switching noise and alternator ripple in high-temperature environments. IC Role / Device Role / Timing Role: Localized TVS mounted adjacent to sensor connector, providing low-inductance path to chassis ground via DO-218AB heatsink terminal. Use Value: Operates reliably at TJ = 175 °C with 0.95 °C/W RθJC, maintaining clamping performance where ambient exceeds 125 °C near exhaust manifolds. |
Use Scenario: Securing programmable logic controllers (PLCs) and motor drives powered from vehicle-derived 12 V DC supplies in mobile equipment. IC Role / Device Role / Timing Role: Robust front-end protection element meeting IEC 61000-4-5 Level 4 requirements when combined with series impedance. Use Value: AEC-Q101 qualification and DO-218AB mechanical robustness ensure long-term stability in vibration-prone industrial mobile platforms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A | DO-214AC package; 400 W PPPM (10/1000 μs); VBR = 11.1–12.3 V; TJ max. = 150 °C | Limited to lower-energy transients; not AEC-Q101 qualified; unsuitable for under-hood automotive use | Select SMAJ10A only for cost-sensitive consumer or industrial applications below 125 °C ambient and with <1 kV surge exposure. |
| TPSMD10A | DO-218AB package; 3000 W PPPM (10/1000 μs); VBR = 11.1–12.3 V; TJ max. = 175 °C; AEC-Q101 qualified | Lower peak power rating reduces margin against worst-case ISO 7637-2 Pulse 5a; same footprint but reduced surge endurance | Choose TPSMD10A only if board space constraints prevent using higher-power alternatives and system-level testing confirms 3 kW sufficiency. |
Compared with SMAJ10A and TPSMD10A, the SM6S10A-E3/2D provides the highest pulse power (4600 W) and verified AEC-Q101 compliance in the DO-218AB form factor - making it the only option among the three rated for full automotive load dump protection without derating or parallel staging.
Availability
SM6S10A-E3/2D is available at Aetrix Electronics and suitable for automotive electronic control units, 12 V DC power input stages, and under-hood sensor interfaces requiring stable component supply across extended temperature and high-reliability operational life.
Supply support for SM6S10A-E3/2D 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 high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The SM6S10A-E3/2D belongs to Vishay's PAR® (Planar Avalanche Rectifier) TVS family, engineered specifically for automotive load dump and ISO 7637-2 transient suppression with emphasis on high-temperature stability and AEC-Q101 compliance.
FAQ
What is the clamping voltage of the SM6S10A-E3/2D at its rated peak pulse current?
The SM6S10A-E3/2D has a maximum clamping voltage (VC) of 17.0 V at its specified peak pulse current (IPPM) of 271 A under the 10/1000 μs waveform. This value is measured per the conditions defined in the Vishay datasheet document 88384 and ensures downstream components see no more than 17.0 V during standardized surge events. The SM6S10A-E3/2D maintains this clamping performance across its full operating temperature range.
Is the SM6S10A-E3/2D suitable for automotive under-hood applications?
Yes, the SM6S10A-E3/2D is explicitly qualified to AEC-Q101 and rated for junction temperatures up to +175 °C, making it suitable for under-hood automotive applications such as engine control units and transmission control modules. Its DO-218AB package integrates a metal heatsink for direct thermal coupling to the PCB, and its parameters are validated per ISO 7637-2 Pulse 5a test conditions. The SM6S10A-E3/2D meets all required environmental and electrical stress criteria for this environment.
What does the "-E3/2D" suffix indicate in SM6S10A-E3/2D?
The "-E3" suffix denotes RoHS-compliant, matte tin-plated leads meeting J-STD-002 and JESD22-B102 solderability standards, plus JESD201 Class 2 whisker resistance. The "/2D" indicates packaging in 13-inch plastic tape and reel with 750 units per reel and anode orientation toward the sprocket hole. This full designation - SM6S10A-E3/2D - uniquely identifies the qualified, production-ready variant supplied by Vishay and distributed by Aetrix Electronics.
How does the SM6S10A-E3/2D differ from the SM6S10 (non-A) variant?
The SM6S10A-E3/2D has a tighter breakdown voltage tolerance (11.1–12.3 V) compared to SM6S10 (11.1–13.6 V), resulting in more consistent clamping behavior and improved system predictability. It also exhibits higher peak pulse current (271 A vs. 250 A) and lower clamping voltage (17.0 V vs. 18.8 V) at rated conditions. These differences stem from process enhancements in the "A" grade, and the SM6S10A-E3/2D is the preferred choice for designs requiring tighter parametric control.
Does the SM6S10A-E3/2D require a heatsink beyond its DO-218AB metal base?
The SM6S10A-E3/2D relies on its DO-218AB metal heatsink terminal (anode) for thermal conduction, and no external heatsink is required for standard ISO 7637-2 Pulse 5a compliance. However, PCB layout must include a minimum 100 mm² copper pour connected to the anode terminal to achieve the specified 0.95 °C/W thermal resistance (RθJC). The SM6S10A-E3/2D performance assumes proper thermal pad implementation per Vishay's recommended mounting pad layout.
SM6S10A-E3/2D Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-218AB
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 271A
- Power - Peak Pulse:
- 4600W (4.6kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-218AB
SM6S10A-E3/2D FAQ
1.How can I place an order for SM6S10A-E3/2D through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6S10A-E3/2D 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 SM6S10A-E3/2D reliable?
The price and inventory of SM6S10A-E3/2D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6S10A-E3/2D is usually 5 days.
3.What payment methods are accepted for SM6S10A-E3/2D?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6S10A-E3/2D transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6S10A-E3/2D?
SM6S10A-E3/2D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6S10A-E3/2D 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 SM6S10A-E3/2D?
For technical support, including SM6S10A-E3/2D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6S10A-E3/2D requirements.
6.How does Aetrix verify that SM6S10A-E3/2D is sourced from the original manufacturer or authorized distributors?
All SM6S10A-E3/2D 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 SM6S10A-E3/2D meets industry standards.
7.What is the process for return or replacement of SM6S10A-E3/2D?
All SM6S10A-E3/2D units undergo pre-shipment inspection (PSI). If there is an issue with SM6S10A-E3/2D, 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 SM6S10A-E3/2D part is unused and in its original packaging.
Return procedure for SM6S10A-E3/2D:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6S10A-E3/2D Tags
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