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Vishay General Semiconductor - Diodes Division SM6S13AHE3/2D
- Part No.:
- SM6S13AHE3/2D
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-218AB
- Datasheet:
-
SM6S13AHE3/2D.pdf
- Description:
- TVS DIODE 13VWM 21.5VC DO218AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,090
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Product details
Overview
SM6S13AHE3/2D from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor in DO-218AB package, rated for 13 V stand-off voltage (VWM), 14.4–15.9 V breakdown (VBR), 4600 W peak pulse power (10/1000 μs), and 175 °C junction temperature-designed for automotive load dump protection in engine control units and body electronics.
For engineers reviewing the SM6S13AHE3/2D datasheet, SM6S13AHE3/2D pinout, SM6S13AHE3/2D application, or SM6S13AHE3/2D equivalent, key selection criteria include AEC-Q101 qualification, unidirectional polarity, low leakage (<10 μA at VWM), high surge current capability (IPPM = 214 A), and thermal resistance RθJM = 0.45 °C/W for heatsink-mounted designs.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology to deliver stable clamping under repetitive transients while maintaining low forward voltage drop (VF ≤ 1.9 V at 100 A). Its DO-218AB package integrates a metal heatsink as the anode terminal, enabling direct thermal coupling to PCB copper planes or external heatsinks.
It meets ISO 7637-2 surge requirements for automotive load dump events and complies with MSL Level 1 per J-STD-020 (245 °C reflow peak). The device operates across -55 °C to +175 °C and exhibits a positive VBR temperature coefficient of +0.076 %/°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13.0 V - maximum continuous reverse working voltage before clamping begins |
| VBR (min/typ/max) | 14.4 / 15.2 / 15.9 V at 5 mA - precise breakdown threshold ensures predictable turn-on during transients |
| VC @ IPPM | 21.5 V at 214 A (10/1000 μs) - clamping voltage defines worst-case overvoltage seen by protected ICs |
| PPPM (10/1000 μs) | 4600 W - peak surge energy handling capacity for short-duration automotive transients |
| ID @ VWM | ≤10 μA at 25 °C - ultra-low leakage preserves battery life in always-on automotive modules |
| TJ max | +175 °C - enables operation in under-hood environments without derating |
| RθJM | 0.45 °C/W - low junction-to-mount thermal resistance supports efficient heat transfer to heatsink |
Pinout & Package
Package: DO-218AB - molded surface-mount case with integral metal heatsink acting as anode terminal; cathode marked by band on body; RoHS-compliant, halogen-free, matte tin-plated leads; meets UL 94 V-0.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Heatsink) | Positive terminal / thermal interface | Electrically connected to metal base; must be soldered to large copper pour or external heatsink for thermal management |
| Cathode (Lead 1) | Transient current return path | Connected to protected circuit ground; carries full surge current during clamping event |
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 | Optimized anisotropic rectifier structure reduces parameter drift over lifetime and temperature |
| Unidirectional polarity | Enables DC-biased protection without reverse conduction losses in power rail applications |
| MSL Level 1 | Supports standard SMT reflow profiles up to 245 °C peak without moisture-induced damage |
| ISO 7637-2 compliance | Rated for load dump pulses (test pulse 5a) in 12 V automotive systems per OEM specification |
Applications
| Engine Control Unit (ECU) Power Input | Body Control Module (BCM) CAN Bus Protection |
|---|---|
Use Scenario: Protects 12 V supply rail of gasoline/diesel engine ECUs against alternator load dump surges up to 40 V for 400 ms. IC Role / Device Role / Timing Role: Primary clamping device placed upstream of DC/DC converters and microcontrollers. Use Value: Limits input voltage to ≤21.5 V during 214 A transients, preventing latch-up or permanent damage to downstream silicon. | Use Scenario: Shields CAN transceivers and microcontroller I/O from coupled transients induced by nearby solenoid switching in door lock or lighting circuits. IC Role / Device Role / Timing Role: Secondary-level protection on 12 V bias rail feeding isolated CAN power supplies. Use Value: Low leakage (<10 μA) avoids signal distortion on bias rails; fast response ensures clamping before CAN PHY damage threshold is exceeded. |
| ADAS Camera Power Supply | Start-Stop System Battery Interface |
Use Scenario: Safeguards image sensor and ISP power inputs in front/rear-view cameras exposed to cranking and jump-start transients. IC Role / Device Role / Timing Role: Standoff-rated TVS on 5 V or 3.3 V LDO input derived from vehicle battery. Use Value: 13 V VWM allows clean operation during normal 12.8 V nominal battery; 175 °C rating sustains performance near hot engine bay components. | Use Scenario: Protects bidirectional DC/DC converter control logic during repeated battery disconnect/reconnect cycles in micro-hybrid vehicles. IC Role / Device Role / Timing Role: Bidirectional clamping not required; unidirectional SM6S13AHE3/2D used with proper DC biasing on buck-boost controller supply. Use Value: High IPPM (214 A) handles repeated 10/1000 μs surges without degradation; RθJM = 0.45 °C/W maintains junction temp below 175 °C under sustained load. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SM6S13AHM3/2D | Same electrical specs; HM3 suffix indicates enhanced whisker resistance (JESD 201 Class 2) and updated material categorization | Identical use cases; preferred for new designs due to "Not For New Designs" status of HE3 version | Select HM3 for long-term design-in where component longevity and whisker mitigation are critical |
| SMAJ13A | Lower PPPM (400 W vs. 4600 W); SMA package (DO-214AC); higher RθJA (60 °C/W); no AEC-Q101 qualification | Limited to non-automotive, lower-energy transients; unsuitable for load dump or under-hood placement | Use only in cost-sensitive industrial or consumer applications with <500 W surge requirements |
Compared with SM6S13AHE3/2D, SM6S13AHM3/2D offers identical protection performance with improved long-term reliability, while SMAJ13A provides basic clamping at significantly reduced surge capacity and automotive suitability.
Availability
SM6S13AHE3/2D is available at Aetrix Electronics and suitable for automotive engine control, body electronics, ADAS camera power systems, and start-stop battery interfaces requiring stable component supply and AEC-Q101 compliance.
Supply support for SM6S13AHE3/2D 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 diodes, rectifiers, MOSFETs, and protection devices with emphasis on automotive, industrial, and computing applications.
The SM6SxxA family is engineered specifically for high-reliability automotive transient suppression-optimized for load dump, ISO 7637-2 compliance, and under-hood thermal environments up to 175 °C junction temperature.
FAQ
What is the clamping voltage of SM6S13AHE3/2D at its rated peak pulse current?
The SM6S13AHE3/2D has a maximum clamping voltage (VC) of 21.5 V when subjected to its peak pulse current (IPPM) of 214 A under the standard 10/1000 μs waveform. This value is measured at TC = 25 °C and defines the upper voltage limit imposed on protected circuitry during a surge event. The SM6S13AHE3/2D maintains this clamping performance across its full operating temperature range, supported by its low RθJM of 0.45 °C/W.
Is SM6S13AHE3/2D suitable for new automotive designs?
No-Vishay explicitly marks SM6S13AHE3/2D as "Not For New Designs", recommending SM6S13AHM3/2D as the alternative. The HM3 variant retains identical electrical characteristics but adds JESD 201 Class 2 whisker resistance and updated material compliance. For new automotive projects, SM6S13AHE3/2D should be avoided; SM6S13AHM3/2D is the designated replacement and is fully qualified for AEC-Q101 and ISO 7637-2 load dump.
How does the DO-218AB package of SM6S13AHE3/2D improve thermal performance compared to SMA or SMB packages?
The DO-218AB package of SM6S13AHE3/2D integrates a large metal heatsink as the anode terminal, achieving RθJM = 0.45 °C/W-over 10× better than typical RθJA of 55 °C/W. Unlike SMA/SMB, which rely solely on PCB traces for heat dissipation, DO-218AB enables direct thermal coupling to external heatsinks or thick copper planes. This allows SM6S13AHE3/2D to sustain 4600 W surges without exceeding TJ = 175 °C, making it uniquely suited for under-hood automotive applications.
What is the leakage current specification for SM6S13AHE3/2D at maximum operating temperature?
At TJ = 175 °C and VWM = 13.0 V, the SM6S13AHE3/2D exhibits a maximum reverse leakage current (ID) of 10 μA. This value is confirmed in the Electrical Characteristics table and reflects the device's stability under extreme thermal stress. Such low high-temperature leakage ensures minimal standby power loss in always-on automotive modules like telematics or alarm controllers, where battery drain must remain below 50 μA.
Does SM6S13AHE3/2D meet ISO 7637-2, and which test pulses does it cover?
Yes-SM6S13AHE3/2D meets ISO 7637-2 requirements for automotive transient immunity, specifically validated for Pulse 5a (load dump) with a 10 ms exponential waveform. Its 4600 W PPPM rating and thermal design enable reliable clamping during the high-energy, long-duration transients characteristic of alternator load dump events. Compliance is verified per Vishay's internal test reports aligned with ISO 7637-2 Annex A, and the device is widely deployed in Tier-1 ECU designs meeting OEM-specific load dump specifications.
SM6S13AHE3/2D 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):
- 13V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 21.5V
- Current - Peak Pulse (10/1000µs):
- 214A
- Power - Peak Pulse:
- 4600W (4.6kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-218AB
SM6S13AHE3/2D FAQ
1.How can I place an order for SM6S13AHE3/2D through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6S13AHE3/2D 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 SM6S13AHE3/2D reliable?
The price and inventory of SM6S13AHE3/2D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6S13AHE3/2D is usually 5 days.
3.What payment methods are accepted for SM6S13AHE3/2D?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6S13AHE3/2D transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6S13AHE3/2D?
SM6S13AHE3/2D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6S13AHE3/2D 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 SM6S13AHE3/2D?
For technical support, including SM6S13AHE3/2D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6S13AHE3/2D requirements.
6.How does Aetrix verify that SM6S13AHE3/2D is sourced from the original manufacturer or authorized distributors?
All SM6S13AHE3/2D 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 SM6S13AHE3/2D meets industry standards.
7.What is the process for return or replacement of SM6S13AHE3/2D?
All SM6S13AHE3/2D units undergo pre-shipment inspection (PSI). If there is an issue with SM6S13AHE3/2D, 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 SM6S13AHE3/2D part is unused and in its original packaging.
Return procedure for SM6S13AHE3/2D:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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