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Vishay General Semiconductor - Diodes Division SM8S10A-E3/2D
- Part No.:
- SM8S10A-E3/2D
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-218AB
- Datasheet:
-
SM8S10A-E3/2D.pdf
- Description:
- TVS DIODE 10VWM 17VC DO218AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,792
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Product details
Overview
SM8S10A-E3/2D from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) designed for automotive load dump protection. It features a 10 V stand-off voltage (VWM), 17.0 V maximum clamping voltage at 388 A peak pulse current (10/1000 μs), and 6600 W peak pulse power dissipation - all rated at TJ = 175 °C for high-reliability underhood applications.
For engineers reviewing the SM8S10A-E3/2D datasheet, SM8S10A-E3/2D pinout, SM8S10A-E3/2D application, or SM8S10A-E3/2D equivalent, key selection criteria include its AEC-Q101 qualification, DO-218AB package thermal performance (RθJC = 0.90 °C/W), low leakage (<15 μA at VWM), and compliance with ISO 7637-2 load dump surge testing.
Technical Context
This TVS diode operates as a unidirectional clamping device with anode-connected heatsink configuration in the DO-218AB case. Its junction passivation and anisotropic rectifier technology enable stable operation up to TJ = 175 °C while maintaining low forward voltage drop (VF ≤ 1.8 V at 100 A) and low reverse leakage across temperature.
The device delivers 6600 W peak pulse power (10/1000 μs) and 5200 W (10/10 000 μs), with clamping voltage tightly controlled at 17.0 V under 388 A transient current. Its thermal resistance of 0.90 °C/W (junction-to-case) supports direct mounting to PCB copper heatsinks for sustained surge handling in automotive power systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 11.1 V / 12.3 V - Breakdown voltage range at 5 mA test current; defines turn-on threshold consistency |
| VC @ IPPM | 17.0 V - Clamping voltage at 388 A peak pulse current; limits downstream voltage stress during transients |
| PPPM (10/1000 μs) | 6600 W - Peak surge power handling capability; enables robust load dump protection per ISO 7637-2 |
| TJ max. | 175 °C - Maximum junction temperature; supports underhood placement without derating penalties |
| RθJC | 0.90 °C/W - Junction-to-case thermal resistance; allows effective heat transfer to external heatsink or PCB copper |
| ID @ VWM | <15 μA - Reverse leakage at 10 V; minimizes standby power loss in always-on automotive modules |
Pinout & Package
Package: DO-218AB surface-mount case with integral metal heatsink (anode terminal). Molding compound meets UL 94 V-0; matte tin-plated leads comply with J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Lead 1 | Cathode | Connected to protected circuit node; carries transient current into the device during clamping |
| Lead 2 / Metal Heatsink | Anode | Primary thermal path and electrical return; must be soldered to large copper area for thermal management and low-inductance grounding |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan |
| Junction passivation design | Enables stable 175 °C operation with <15 μA leakage at VWM and minimal parameter drift over lifetime |
| DO-218AB metal heatsink | Provides 0.90 °C/W thermal resistance and mechanical robustness for high-energy surge absorption |
| ISO 7637-2 compliance | Meets automotive load dump surge requirements (test pulses 1, 2a, 3a/b, 5a) when properly mounted |
| MSL Level 1 rating | Unlimited floor life at ≤30 °C/60% RH; supports standard SMT reflow without baking preconditioning |
Applications
| Engine Control Unit (ECU) Power Input | Body Control Module (BCM) Battery Line |
|---|---|
Use Scenario: Protects 5 V/12 V microcontroller power rails from battery line transients during alternator load dump events. IC Role / Device Role / Timing Role: Unidirectional TVS clamps voltage spikes above 17.0 V to safeguard LDOs, MCUs, and CAN transceivers. Use Value: Prevents latch-up or permanent damage during 12 V system surges up to 6600 W (10/1000 μs), meeting OEM Tier-1 requirements. | Use Scenario: Shields BCM power inputs from ignition switching noise and jump-start induced overvoltage. IC Role / Device Role / Timing Role: Fast-response clamping device placed upstream of DC-DC converters and power distribution ICs. Use Value: Limits transient voltage to ≤17.0 V at 388 A, ensuring uninterrupted operation during ISO 7637-2 Pulse 5a (load dump) tests. |
| Automotive Infotainment Power Supply | ADAS Camera Module Input Protection |
Use Scenario: Guards USB-C PD and display power rails against battery disconnection/reconnection surges. IC Role / Device Role / Timing Role: Primary overvoltage suppression element on main 12 V input before buck converter stage. Use Value: Maintains <15 μA leakage at 10 V to avoid standby current penalty while delivering 6600 W surge capacity. | Use Scenario: Safeguards 5 V image sensor and serializer power lines from cable-induced ESD and inductive kickback. IC Role / Device Role / Timing Role: Low-capacitance (CJ ≈ 30 pF at VWM) unidirectional clamp integrated near connector entry point. Use Value: Achieves 17.0 V clamping with 0.90 °C/W thermal resistance, enabling compact layout without external heatsink. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A | Lower PPPM (400 W vs. 6600 W); SMA package (RθJC ≈ 40 °C/W); no AEC-Q101 qualification | Not suitable for automotive load dump; limited to low-energy board-level ESD protection | Select SMAJ10A only for cost-sensitive consumer electronics where surge energy is <100 mJ. |
| TPSMD10A | Same DO-218AB package; 6000 W PPPM (10/1000 μs); clamping voltage 17.5 V at 370 A; AEC-Q101 qualified | Compatible for most load dump designs but requires validation of thermal interface due to slightly higher VC | TPSMD10A offers comparable surge rating and qualification; verify layout thermal coupling matches SM8S10A-E3/2D's 0.90 °C/W RθJC. |
Compared with SMAJ10A and TPSMD10A, the SM8S10A-E3/2D delivers 16.5× higher peak pulse power and superior thermal performance in the same footprint - making it uniquely suited for underhood automotive power rail protection where sustained surge energy and high ambient temperature coexist.
Availability
SM8S10A-E3/2D is available at Aetrix Electronics and suitable for automotive ECU power protection, body control module surge suppression, and ADAS camera module input conditioning requiring stable component supply across extended temperature and lifecycle demands.
Supply support for SM8S10A-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, optoelectronics, and passive components for automotive, industrial, and computing markets.
The SM8SxxA series belongs to Vishay's PAR® family of high-power TVS diodes engineered specifically for automotive load dump and ISO 7637-2 compliance - emphasizing thermal robustness, AEC-Q101 qualification, and DO-218AB package integration.
FAQ
What is the maximum clamping voltage of the SM8S10A-E3/2D under surge conditions?
The SM8S10A-E3/2D has a maximum clamping voltage (VC) of 17.0 V when subjected to its rated peak pulse current of 388 A using the 10/1000 μs waveform. This value is measured at TC = 25 °C and ensures downstream components remain within safe operating voltage limits during automotive load dump events. The SM8S10A-E3/2D maintains this clamping performance across its full operating temperature range.
Is the SM8S10A-E3/2D qualified for automotive applications?
Yes, the SM8S10A-E3/2D is AEC-Q101 qualified and explicitly designed for automotive use. It meets ISO 7637-2 surge test requirements, operates reliably from –55 °C to +175 °C, and is manufactured with junction passivation optimized for high-temperature stability. The SM8S10A-E3/2D is commonly deployed in engine control units, body control modules, and infotainment systems requiring certified transient protection.
What package does the SM8S10A-E3/2D use, and how should it be mounted?
The SM8S10A-E3/2D uses the DO-218AB surface-mount package with an integral metal heatsink serving as the anode terminal. For optimal thermal performance, Lead 2 (metal heatsink) must be soldered to a large copper area acting as both electrical return and heatsink. The SM8S10A-E3/2D achieves RθJC = 0.90 °C/W only when mounted per Vishay's recommended pad layout and thermal via guidelines.
How does the SM8S10A-E3/2D compare to the SM8S10A variant without the -E3/2D suffix?
The SM8S10A-E3/2D is the RoHS-compliant, AEC-Q101-qualified version supplied in 13" plastic tape and reel (750 pcs/reel), with matte tin-plated leads meeting J-STD-002 and JESD 22-B102. The base SM8S10A (without suffixes) lacks RoHS compliance and may not carry AEC-Q101 certification. All electrical and thermal specifications of the SM8S10A-E3/2D match those published for the SM8S10A family in Vishay document 88387.
What is the reverse leakage current specification for the SM8S10A-E3/2D at its stand-off voltage?
The SM8S10A-E3/2D exhibits a maximum reverse leakage current (ID) of 15 μA at its 10 V stand-off voltage (VWM) and 25 °C. At elevated temperature (TJ = 175 °C), leakage remains ≤250 μA - confirming stable performance in underhood environments. This low leakage preserves system efficiency in always-on automotive modules where the SM8S10A-E3/2D is typically deployed.
SM8S10A-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):
- 388A
- Power - Peak Pulse:
- 6600W (6.6kW)
- 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
SM8S10A-E3/2D FAQ
1.How can I place an order for SM8S10A-E3/2D through Aetrix?
Please submit a Request for Quotation (RFQ) for SM8S10A-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 SM8S10A-E3/2D reliable?
The price and inventory of SM8S10A-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 SM8S10A-E3/2D is usually 5 days.
3.What payment methods are accepted for SM8S10A-E3/2D?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM8S10A-E3/2D transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM8S10A-E3/2D?
SM8S10A-E3/2D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM8S10A-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 SM8S10A-E3/2D?
For technical support, including SM8S10A-E3/2D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM8S10A-E3/2D requirements.
6.How does Aetrix verify that SM8S10A-E3/2D is sourced from the original manufacturer or authorized distributors?
All SM8S10A-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 SM8S10A-E3/2D meets industry standards.
7.What is the process for return or replacement of SM8S10A-E3/2D?
All SM8S10A-E3/2D units undergo pre-shipment inspection (PSI). If there is an issue with SM8S10A-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 SM8S10A-E3/2D part is unused and in its original packaging.
Return procedure for SM8S10A-E3/2D:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM8S10A-E3/2D Tags
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