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Vishay General Semiconductor - Diodes Division SM5S13AHE3/2D
- Part No.:
- SM5S13AHE3/2D
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-218AB
- Datasheet:
-
SM5S13AHE3/2D.pdf
- Description:
- TVS DIODE 13VWM 21.5VC DO218AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,730
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Product details
Overview
SM5S13AHE3/2D from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) designed for automotive load dump protection in high-reliability 12 V systems. It features a 13.0 V stand-off voltage (VWM), 14.4–15.9 V breakdown range (VBR), 21.5 V clamping voltage at 167 A peak pulse current, and 3600 W peak pulse power (10/1000 μs). Its DO-218AB package supports TJ = 175 °C operation and AEC-Q101 qualification.
For engineers reviewing the SM5S13AHE3/2D datasheet, SM5S13AHE3/2D pinout, SM5S13AHE3/2D application, or SM5S13AHE3/2D equivalent, key selection criteria include unidirectional polarity, 175 °C junction rating, ISO7637-2 compliance for load dump transients, low leakage (<10 μA at VWM), and thermal resistance of 1.0 °C/W (junction-to-case).
Technical Context
The SM5S13AHE3/2D employs passivated anisotropic rectifier technology optimized for high-temperature stability and surge robustness. Its unidirectional architecture provides forward conduction during overvoltage events while maintaining low reverse leakage (≤10 μA at 13.0 V, 25 °C) and low forward voltage drop (≤2.0 V at 100 A).
It delivers 3600 W peak pulse power under 10/1000 μs waveform and sustains 2800 W under 10/10 000 μs, meeting ISO7637-2 load dump requirements. The device operates across –55 °C to +175 °C and is qualified to AEC-Q101 with MSL Level 1 rating and JESD201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13.0 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 14.4 V / 15.9 V - Breakdown voltage range at 5 mA test current; defines turn-on threshold consistency |
| VC @ IPPM | 21.5 V - Clamping voltage at 167 A peak pulse current; limits downstream voltage stress |
| PPPM (10/1000 μs) | 3600 W - Peak surge energy handling capability for short-duration automotive transients |
| TJ max. | +175 °C - Enables placement near hot engine control units without derating penalties |
| RθJC | 1.0 °C/W - Low thermal resistance enables effective heatsinking via metal tab (anode) |
| Leakage @ VWM | ≤10 μA at 25 °C - Minimizes standby power loss in always-on vehicle modules |
Pinout & Package
Package: DO-218AB - Surface-mount, single-ended case with integrated metal heatsink (anode terminal); RoHS-compliant, matte tin-plated leads; meets UL 94 V-0.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Lead 1 | Cathode | Connected to protected circuit's positive rail; conducts during reverse overvoltage |
| Lead 2 / Metal Heatsink | Anode | Primary thermal path and electrical return; must be soldered to large copper area for thermal management |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier process ensures stable VBR and low leakage over lifetime and temperature |
| AEC-Q101 qualification | Validated reliability for automotive electronics including engine control, body control, and ADAS modules |
| ISO7637-2 compliance | Rated for load dump transients up to 3600 W, enabling direct integration into 12 V battery line protection |
| MSL Level 1 | Reflow-compatible up to 245 °C peak without moisture sensitivity concerns |
| Heatsink-integrated anode | DO-218AB metal tab serves as both electrical terminal and primary thermal interface for PCB copper pour |
Applications
| Automotive Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Protects microcontroller I/O and power rails from alternator load dump spikes during battery disconnect/reconnect events. IC Role / Device Role / Timing Role: Unidirectional TVS diode clamping transient energy on 12 V supply input. Use Value: Limits voltage to ≤21.5 V during 167 A surges, preventing latch-up or damage to 3.3 V/5 V logic supplies downstream. |
Use Scenario: Shields LIN bus transceivers and relay drivers from inductive switching transients in door lock/mirror circuits. IC Role / Device Role / Timing Role: Fast-response voltage clamp on 12 V auxiliary rail feeding multiple low-power loads. Use Value: Maintains ≤10 μA leakage at 13.0 V, avoiding battery drain in sleep-mode vehicle states. |
| Advanced Driver Assistance Systems (ADAS) | Electric Power Steering (EPS) |
Use Scenario: Safeguards camera sensor power inputs against coupled transients from nearby motor actuation. IC Role / Device Role / Timing Role: Primary overvoltage suppression on 12 V bias rail feeding image signal processors. Use Value: Withstands 175 °C ambient and delivers 3600 W surge capacity, supporting under-hood mounting near radar units. |
Use Scenario: Guards motor driver ICs and position sensors from back-EMF during rapid steering torque changes. IC Role / Device Role / Timing Role: High-current clamping element on H-bridge DC bus input. Use Value: 500 A non-repetitive surge rating (IFSM) handles worst-case motor stall conditions without failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ13A-E3/5AT | DO-214AC (SMA) package; 1.5 °C/W RθJC; lower PPPM (400 W) | Limited to lower-energy transients; unsuitable for full ISO7637-2 load dump | Choose for cost-sensitive, non-automotive 12 V systems with <500 W surge requirements |
| TPSMD13A | DO-214AB (SMC) package; 1.25 °C/W RθJC; 3000 W PPPM (10/1000 μs) | Lower clamping voltage (20.9 V) but reduced surge margin vs. SM5S13AHE3/2D's 3600 W | Prefer where tighter voltage clamping is prioritized over maximum energy absorption |
Compared with SMAJ13A-E3/5AT and TPSMD13A, the SM5S13AHE3/2D offers superior thermal performance (1.0 °C/W), higher surge rating (3600 W), and AEC-Q101 qualification-making it the only option validated for under-hood automotive load dump protection per ISO7637-2.
Availability
SM5S13AHE3/2D is available at Aetrix Electronics and suitable for automotive ECU protection, body control module design, and ADAS power rail hardening requiring stable component supply and long-term lifecycle assurance.
Supply support for SM5S13AHE3/2D 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 TVS devices for automotive, industrial, and computing markets.
The SM5SxxA series is engineered specifically for automotive-grade transient suppression-featuring high-temperature operation, AEC-Q101 validation, and DO-218AB packaging optimized for thermal dissipation in space-constrained engine bay environments.
FAQ
What is the clamping voltage of the SM5S13AHE3/2D at its rated peak pulse current?
The SM5S13AHE3/2D has a maximum clamping voltage (VC) of 21.5 V when subjected to its peak pulse current (IPPM) of 167 A under the standard 10/1000 μs waveform. This value is measured at TA = 25 °C and ensures downstream components experience limited overvoltage stress during transient events. The SM5S13AHE3/2D maintains this clamping performance across its full operating temperature range.
Is the SM5S13AHE3/2D suitable for ISO7637-2 load dump protection?
Yes, the SM5S13AHE3/2D is explicitly rated to meet ISO7637-2 surge requirements for automotive 12 V systems. Its 3600 W peak pulse power (10/1000 μs) and 2800 W (10/10 000 μs) ratings, combined with AEC-Q101 qualification and 175 °C junction capability, make it appropriate for load dump protection in ECUs and other under-hood modules. The SM5S13AHE3/2D data sheet confirms compliance under varied test conditions.
What does the HE3/2D suffix indicate in SM5S13AHE3/2D?
The HE3 suffix denotes RoHS-compliance and AEC-Q101 qualification, while the /2D indicates packaging in 13-inch plastic tape and reel with 750 units per reel and anode orientation toward the sprocket hole. This configuration ensures compatibility with automated SMT assembly and satisfies automotive traceability and reliability requirements. The SM5S13AHE3/2D ordering code reflects full compliance with both environmental and automotive standards.
How is thermal management handled for the SM5S13AHE3/2D?
The SM5S13AHE3/2D uses the metal heatsink (anode terminal) as its primary thermal path, with a typical junction-to-case thermal resistance (RθJC) of 1.0 °C/W. Effective thermal management requires soldering the metal tab to a minimum 100 mm² copper pour on the PCB. This design allows the SM5S13AHE3/2D to sustain full power dissipation at elevated ambient temperatures up to +175 °C junction.
What is the polarity configuration of the SM5S13AHE3/2D?
The SM5S13AHE3/2D is unidirectional, with the metal heatsink serving as the anode and Lead 1 as the cathode. This configuration allows forward conduction during overvoltage events on the protected line, providing low-clamp, high-surge protection for positive-rail applications. The SM5S13AHE3/2D datasheet specifies "polarity: heatsink is anode" and confirms uni-directional operation only.
SM5S13AHE3/2D 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):
- 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-218AB
SM5S13AHE3/2D FAQ
1.How can I place an order for SM5S13AHE3/2D through Aetrix?
Please submit a Request for Quotation (RFQ) for SM5S13AHE3/2D 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 SM5S13AHE3/2D reliable?
The price and inventory of SM5S13AHE3/2D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM5S13AHE3/2D is usually 5 days.
3.What payment methods are accepted for SM5S13AHE3/2D?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM5S13AHE3/2D transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM5S13AHE3/2D?
SM5S13AHE3/2D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM5S13AHE3/2D 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 SM5S13AHE3/2D?
For technical support, including SM5S13AHE3/2D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM5S13AHE3/2D requirements.
6.How does Aetrix verify that SM5S13AHE3/2D is sourced from the original manufacturer or authorized distributors?
All SM5S13AHE3/2D 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 SM5S13AHE3/2D meets industry standards.
7.What is the process for return or replacement of SM5S13AHE3/2D?
All SM5S13AHE3/2D units undergo pre-shipment inspection (PSI). If there is an issue with SM5S13AHE3/2D, 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 SM5S13AHE3/2D part is unused and in its original packaging.
Return procedure for SM5S13AHE3/2D:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM5S13AHE3/2D Tags
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