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Vishay General Semiconductor - Diodes Division SM5S13HE3/2D
- Part No.:
- SM5S13HE3/2D
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-218AB
- Datasheet:
-
SM5S13HE3/2D.pdf
- Description:
- TVS DIODE 13VWM 23.8VC DO218AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,224
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Product details
Overview
SM5S13HE3/2D 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), 14.4–17.6 V breakdown range (VBR), 23.8 V clamping voltage at 151 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 SM5S13HE3/2D datasheet, SM5S13HE3/2D pinout, SM5S13HE3/2D application, or SM5S13HE3/2D equivalent, this page delivers verified electrical parameters, thermal derating behavior, ISO7637-2 compliance context, and direct alternatives for automotive power rail protection design.
Technical Context
This TVS diode operates as a unidirectional clamping device with anode-connected heatsink configuration, enabling robust suppression of positive-going transients on DC power lines. Its junction passivation and anisotropic rectifier technology ensure stable leakage (<10 μA at VWM, <150 μA at TJ = 175 °C) and low forward voltage drop (≤2.0 V at 100 A).
The device delivers 3600 W peak pulse power under 10/1000 μs waveform and sustains 500 A non-repetitive forward surge current (8.3 ms half-sine). Thermal resistance RθJC is 1.0 °C/W, supporting high-power dissipation when mounted to a heatsink per DO-218AB mechanical layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13.0 V - Maximum continuous reverse operating voltage before clamping begins; sets system overvoltage trip threshold for 12 V automotive rails. |
| VBR (min/max) | 14.4 V / 17.6 V - Breakdown occurs within this range at 5 mA test current; defines turn-on consistency across production lots. |
| VC @ IPPM | 23.8 V - Clamping voltage at 151 A peak pulse current; determines maximum voltage seen by protected downstream circuitry. |
| PPPM (10/1000 μs) | 3600 W - Peak transient energy handling capability; validates suitability for ISO7637-2 Load Dump Pulse 5a (12 V system). |
| TJ max. | 175 °C - Maximum junction temperature rating; enables operation in under-hood environments without derating penalties. |
| IFSM | 500 A - Non-repetitive forward surge current rating (8.3 ms); supports survival during cranking-induced inrush events. |
| Polarity | Unidirectional - Anode connected to heatsink; requires correct orientation in series with positive supply line for load dump suppression. |
Pinout & Package
Package: DO-218AB - Surface-mount, thermally enhanced case with integral metal heatsink (anode terminal), UL 94 V-0 molding compound, matte tin-plated leads compliant with J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Lead 1 | Cathode | Connected to protected circuit node; carries transient current into device during clamping event. |
| Lead 2 / Metal Heatsink | Anode | Primary thermal path and electrical connection point; must be soldered to copper pour or heatsink for RθJC = 1.0 °C/W performance. |
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 | Reduces long-term parameter drift and leakage growth under high-temperature bias, critical for 15+ year vehicle lifetimes. |
| MSL Level 1 (245 °C peak) | Enables standard reflow assembly without moisture sensitivity concerns; no baking required prior to SMT placement. |
| Low leakage at 175 °C | ≤150 μA at VWM ensures minimal standby power loss and avoids false triggering in hot under-hood conditions. |
| ISO7637-2 compliant | Meets Pulse 5a (load dump) requirements for 12 V systems when used with appropriate input impedance and layout. |
Applications
| Automotive Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Protection of microcontroller power inputs against alternator load dump transients during battery disconnect events. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between battery feed and LDO input, absorbing >3 kW surges within 23.8 V clamp limit. Use Value: Prevents latch-up or permanent damage to 5 V/3.3 V regulators and MCU cores while maintaining system uptime during harsh vehicle operation. |
Use Scenario: Safeguarding LIN bus transceiver power rails from coupled transients generated by window motor or seat actuator switching. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 12 V supply rail feeding isolated DC/DC converter for LIN physical layer. Use Value: Ensures uninterrupted communication during repeated inductive switching cycles, meeting OEM EMC immunity requirements. |
| Advanced Driver Assistance Systems (ADAS) Camera Module | Electric Power Steering (EPS) Control Unit |
Use Scenario: Input protection for image sensor power domain exposed to transients from adjacent ADAS radar or infotainment modules. IC Role / Device Role / Timing Role: Fast-response TVS on 12 V input stage upstream of buck converter, limiting voltage excursion to ≤23.8 V during 10/1000 μs pulses. Use Value: Maintains clean power delivery to CMOS image sensors, eliminating frame corruption or reset events caused by conducted noise. |
Use Scenario: Clamping of H-bridge gate driver supply rail against back-EMF spikes from steering motor commutation. IC Role / Device Role / Timing Role: High-energy TVS on 12 V auxiliary rail feeding pre-driver ICs, rated for 500 A IFSM to survive repetitive motor stall events. Use Value: Extends gate driver lifetime and prevents MOSFET shoot-through failures induced by voltage overshoot on bootstrap supplies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ13A-E3/5A | Lower PPPM (400 W), SMA package, 13.0 V VWM, but bidirectional variant available; RθJC ≈ 50 °C/W vs. 1.0 °C/W. | Not suitable for ISO7637-2 load dump; limited to lower-energy transients like ESD or inductive switch-off. | Select only for cost-sensitive non-automotive applications where 3600 W surge capacity is unnecessary. |
| TPSMD13A | Same DO-218AB package, 13.0 V VWM, 3600 W PPPM, but higher VC (25.5 V) and lower IFSM (400 A); not AEC-Q101 qualified. | Lacks automotive qualification and high-temperature leakage validation; requires additional reliability screening for vehicle use. | Acceptable for industrial control if AEC-Q101 is not mandated, but SM5S13HE3/2D remains preferred for OEM automotive programs. |
Compared with SMAJ13A-E3/5A and TPSMD13A, SM5S13HE3/2D uniquely combines AEC-Q101 qualification, 175 °C operation, 1.0 °C/W thermal resistance, and full ISO7637-2 load dump compliance-making it the only option validated for front-line automotive power rail protection without derating or supplemental thermal design.
Availability
SM5S13HE3/2D is available at Aetrix Electronics and suitable for automotive engine control units, body control modules, ADAS camera systems, and electric power steering units requiring stable component supply and long-term lifecycle assurance.
Supply support for SM5S13HE3/2D 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, rectifiers, and protection devices for automotive, industrial, and computing markets.
The SM5Sxx family was engineered specifically for automotive load dump protection, emphasizing high-temperature stability, low leakage at TJ = 175 °C, and robust surge handling in the DO-218AB thermally optimized package.
FAQ
What is the clamping voltage of SM5S13HE3/2D at its rated peak pulse current?
The SM5S13HE3/2D has a maximum clamping voltage (VC) of 23.8 V when subjected to its peak pulse current (IPPM) of 151 A under the 10/1000 μs waveform. This value is measured at TA = 25 °C and defines the upper voltage limit imposed on protected circuitry during worst-case transient events. The SM5S13HE3/2D maintains this clamping performance across its operational temperature range due to its junction passivation and thermal design.
Is SM5S13HE3/2D qualified for automotive applications?
Yes, SM5S13HE3/2D is AEC-Q101 qualified and rated for TJ = 175 °C operation, making it suitable for under-hood automotive applications including engine control units and body control modules. It meets MSL Level 1 per J-STD-020 and passes whisker testing per JESD 201 Class 2. The SM5S13HE3/2D is explicitly listed in Vishay's AEC-Q101 qualified products table and supports ISO7637-2 load dump compliance when applied per recommended layout guidelines.
What is the thermal resistance of SM5S13HE3/2D, and how does it affect PCB layout?
The SM5S13HE3/2D has a typical junction-to-case thermal resistance (RθJC) of 1.0 °C/W, achieved via its DO-218AB metal heatsink structure. To realize this value, the anode (Lead 2/metal heatsink) must be soldered to a minimum 100 mm² copper pour with ≥2 thermal vias to internal ground planes. Without adequate thermal coupling, derating of the 3600 W peak pulse power is required. The SM5S13HE3/2D datasheet provides exact pad layout dimensions to ensure optimal thermal performance.
Can SM5S13HE3/2D replace bidirectional TVS diodes in automotive designs?
No, SM5S13HE3/2D is unidirectional only, with polarity defined as anode = metal heatsink. It cannot suppress negative-going transients on the protected line. For bidirectional protection, a separate device such as SMBJ13CA or dual-diode configuration is required. The SM5S13HE3/2D is intended exclusively for positive transient suppression on DC power rails-its design, testing, and qualification assume unidirectional operation per ISO7637-2 Pulse 5a.
What is the maximum reverse leakage current of SM5S13HE3/2D at elevated temperature?
At TJ = 175 °C and VWM = 13.0 V, the SM5S13HE3/2D exhibits a maximum reverse leakage current (ID) of 150 μA. This value is specified in the Vishay datasheet and confirmed across production lots. Low high-temperature leakage ensures minimal power loss and avoids false triggering in hot under-hood environments. The SM5S13HE3/2D achieves this performance through junction passivation and anisotropic rectifier technology.
SM5S13HE3/2D 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:
- 23.8V
- Current - Peak Pulse (10/1000µs):
- 151A
- 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
SM5S13HE3/2D FAQ
1.How can I place an order for SM5S13HE3/2D through Aetrix?
Please submit a Request for Quotation (RFQ) for SM5S13HE3/2D 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 SM5S13HE3/2D reliable?
The price and inventory of SM5S13HE3/2D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM5S13HE3/2D is usually 5 days.
3.What payment methods are accepted for SM5S13HE3/2D?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM5S13HE3/2D transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM5S13HE3/2D?
SM5S13HE3/2D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM5S13HE3/2D 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 SM5S13HE3/2D?
For technical support, including SM5S13HE3/2D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM5S13HE3/2D requirements.
6.How does Aetrix verify that SM5S13HE3/2D is sourced from the original manufacturer or authorized distributors?
All SM5S13HE3/2D 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 SM5S13HE3/2D meets industry standards.
7.What is the process for return or replacement of SM5S13HE3/2D?
All SM5S13HE3/2D units undergo pre-shipment inspection (PSI). If there is an issue with SM5S13HE3/2D, 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 SM5S13HE3/2D part is unused and in its original packaging.
Return procedure for SM5S13HE3/2D:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM5S13HE3/2D Tags
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