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Vishay General Semiconductor - Diodes Division SM5S13ATHE3/I
- Part No.:
- SM5S13ATHE3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-218AC
- Datasheet:
-
SM5S13ATHE3/I.pdf
- Description:
- TVS DIODE 13VWM 21.5VC DO218AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,378
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Product details
Overview
SM5S13ATHE3/I from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor in DO-218AC package, rated for 13 V stand-off voltage (VWM), 15.2 V nominal breakdown (VBR), 167 V clamping at 150 A peak pulse current, 3600 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 SM5S13ATHE3/I datasheet, SM5S13ATHE3/I pinout, SM5S13ATHE3/I application, or SM5S13ATHE3/I equivalent, key selection criteria include unidirectional polarity, DO-218AC thermal performance (RθJC = 1.0 °C/W), AEC-Q101 qualification, ISO7637-2 compliance, and 10 μA max reverse leakage at VWM.
Technical Context
The SM5S13ATHE3/I employs passivated anisotropic rectifier technology with junction passivation optimized for high-reliability operation up to TJ = 175 °C. Its unidirectional configuration uses the metal heatsink as anode, enabling robust clamping during load dump transients.
It delivers 3600 W peak pulse power under 10/1000 μs waveform and sustains 2800 W under 10/10 000 μs waveform, meeting automotive surge requirements without derating below 125 °C case temperature per its power derating curve.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13.0 V - maximum continuous reverse operating voltage before conduction begins |
| VBR (nom) | 15.2 V at 5 mA - precise breakdown threshold ensuring predictable clamping onset |
| VC @ IPPM | 167 V at 150 A (10/1000 μs) - clamping voltage limiting downstream circuit stress |
| PPPM | 3600 W (10/1000 μs) - peak surge energy handling capacity for load dump events |
| RθJC | 1.0 °C/W - low thermal resistance enabling efficient heat transfer to heatsink |
| ID @ VWM | 10 μA max at 25 °C - ultra-low leakage preserving system standby power integrity |
| TJ max | +175 °C - extended junction temperature rating supporting under-hood automotive placement |
Pinout & Package
Package: DO-218AC - thermally enhanced surface-mount outline with metal heatsink acting as anode terminal; meets UL 94 V-0, MSL Level 1, and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Lead 1 | Cathode | Signal-side connection; carries transient current into device during clamping |
| Lead 2 / Metal Heatsink | Anode | Primary thermal and electrical return path; must be connected to system ground plane for optimal thermal dissipation and clamping reference |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation optimized design | Enables stable VBR drift ≤0.076 %/°C and long-term reliability under thermal cycling |
| TJ = 175 °C capability | Supports direct mounting near high-temperature engine compartments without external derating |
| Meets ISO7637-2 surge specification | Validated for automotive load dump waveforms including 10 ms exponential transients |
| AEC-Q101 qualified (HE3 suffix) | Qualified for automotive-grade production with full stress test reporting per AEC standard |
| Low forward voltage drop | VF ≤2.0 V at 100 A enables minimal conduction loss during high-current surge events |
Applications
| Engine Control Unit (ECU) Protection | Body Control Module (BCM) Power Input |
|---|---|
Use Scenario: Protects microcontroller power rails from 12 V battery line transients during alternator load dump events. IC Role / Device Role / Timing Role: Unidirectional TVS clamps reverse surge energy before it reaches LDOs and MCU VDD pins. Use Value: Limits clamping voltage to 167 V at 150 A, preventing overvoltage damage to 3.3 V/5 V logic supplies downstream. |
Use Scenario: Shields BCM power input against switching spikes from solenoids, relays, and lighting loads. IC Role / Device Role / Timing Role: Fast-response PAR® suppressor diverts inductive kickback energy away from PMIC inputs. Use Value: Delivers 3600 W peak pulse power handling with <10 μA leakage, maintaining low quiescent current in always-on modules. |
| Advanced Driver Assistance Systems (ADAS) Camera Power | Electric Power Steering (EPS) Motor Driver Stage |
Use Scenario: Guards image sensor and SerDes power lines against ESD and conducted transients in front-end camera modules. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbs fast-rising transients while preserving signal integrity on 12 V bias rails. Use Value: 13 V VWM ensures no interference with normal 12 V operation; 175 °C rating supports under-hood camera housing environments. |
Use Scenario: Protects H-bridge gate driver ICs and current sense amplifiers from motor commutation spikes. IC Role / Device Role / Timing Role: High-surge-capable TVS placed at motor power input to clamp flyback energy during PWM switching. Use Value: 2800 W rating at 10/10 000 μs waveform matches sustained motor stall surge profiles without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SM5S13AHM3 | Same VWM/VBR/VC ratings; HM3 suffix indicates halogen-free, RoHS-compliant molding compound and matte tin plating per JESD201 Class 2 | Identical automotive use cases; HM3 replaces HE3 in new designs per Vishay's "Not For New Designs" notice | Select HM3 for new automotive programs requiring updated material compliance and long-term supply continuity |
| SMAJ13A | Lower PPPM (400 W), smaller SMA package (RθJC = 40 °C/W), no AEC-Q101 qualification, higher ID (50 μA) | Limited to non-automotive industrial or consumer applications with lower surge exposure | Use only where 3600 W surge capacity and 175 °C operation are not required; not suitable for load dump protection |
Compared with SM5S13ATHE3/I, SM5S13AHM3 offers identical electrical and thermal performance with updated environmental compliance, while SMAJ13A provides basic TVS functionality in a cost-sensitive, lower-power footprint unsuitable for automotive-grade surge immunity.
Availability
SM5S13ATHE3/I is available at Aetrix Electronics and suitable for automotive electronics, engine control units, and body control modules requiring stable component supply and traceable sourcing for production ramp-up.
Supply support for SM5S13ATHE3/I 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, and protection devices with emphasis on automotive, industrial, and power applications.
The SM5S series is part of Vishay's PAR® transient voltage suppressor family, engineered specifically for high-energy automotive load dump protection with AEC-Q101 qualification and extended temperature operation.
FAQ
What does the HE3 suffix indicate on SM5S13ATHE3/I?
The HE3 suffix on SM5S13ATHE3/I denotes RoHS-compliant construction, AEC-Q101 qualification, matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and JESD 201 Class 2 whisker resistance. It confirms suitability for automotive production environments and high-reliability applications where long-term solder joint integrity is critical. SM5S13ATHE3/I meets all these requirements per Vishay Document Number 87609.
Is SM5S13ATHE3/I suitable for bidirectional transient suppression?
No, SM5S13ATHE3/I is unidirectional only, with polarity defined by the metal heatsink serving as the anode. It is not rated for reverse-biased operation or AC line protection. For bidirectional applications, Vishay offers separate dual-diode configurations such as the SMBJ series. The SM5S13ATHE3/I datasheet explicitly states "Available in unidirectional polarity only" and specifies anode-to-heatsink orientation.
What is the maximum clamping voltage of SM5S13ATHE3/I under surge conditions?
The maximum clamping voltage (VC) of SM5S13ATHE3/I is 167 V when subjected to a 150 A peak pulse current with a 10/1000 μs waveform at TA = 25 °C. This value is guaranteed across the full operating temperature range and forms the basis for downstream circuit overvoltage margining. It is measured per standardized IEC 61000-4-5 test conditions and documented in Table 1 of Vishay Document 87609.
Does SM5S13ATHE3/I meet ISO7637-2 requirements?
Yes, SM5S13ATHE3/I meets ISO7637-2 surge specifications for automotive applications, including Pulse 5a (load dump) testing under varied test conditions. Its 3600 W peak pulse power rating and thermal design (RθJC = 1.0 °C/W) enable compliance with the 10 ms exponential waveform requirement. Vishay explicitly states this compliance in the "FEATURES" section of Document 87609.
What is the thermal resistance from junction to case for SM5S13ATHE3/I?
The typical thermal resistance from junction to case (RθJC) for SM5S13ATHE3/I is 1.0 °C/W, as specified in the Thermal Characteristics table of Vishay Document 87609. This low value reflects the DO-218AC package's metal heatsink construction and enables effective heat transfer to the PCB ground plane or external heatsink, supporting continuous operation up to TJ = 175 °C.
SM5S13ATHE3/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-218AC
- 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):
- 167A
- Power - Peak Pulse:
- 3600W (3.6kW)
- 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-218AC
SM5S13ATHE3/I FAQ
1.How can I place an order for SM5S13ATHE3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SM5S13ATHE3/I 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 SM5S13ATHE3/I reliable?
The price and inventory of SM5S13ATHE3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM5S13ATHE3/I is usually 5 days.
3.What payment methods are accepted for SM5S13ATHE3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM5S13ATHE3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM5S13ATHE3/I?
SM5S13ATHE3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM5S13ATHE3/I 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 SM5S13ATHE3/I?
For technical support, including SM5S13ATHE3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM5S13ATHE3/I requirements.
6.How does Aetrix verify that SM5S13ATHE3/I is sourced from the original manufacturer or authorized distributors?
All SM5S13ATHE3/I 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 SM5S13ATHE3/I meets industry standards.
7.What is the process for return or replacement of SM5S13ATHE3/I?
All SM5S13ATHE3/I units undergo pre-shipment inspection (PSI). If there is an issue with SM5S13ATHE3/I, 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 SM5S13ATHE3/I part is unused and in its original packaging.
Return procedure for SM5S13ATHE3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM5S13ATHE3/I Tags
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