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Vishay General Semiconductor - Diodes Division SM5S10AHE3_A/I
- Part No.:
- SM5S10AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-218AB
- Datasheet:
-
SM5S10AHE3_A/I.pdf
- Description:
- TVS DIODE 10VWM 17VC DO218AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,510
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Product details
Overview
SM5S10AHE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor in DO-218AB package, rated for 10 V stand-off voltage (VWM), 11.1–12.3 V breakdown (VBR), 3600 W peak pulse power (10/1000 μs), 175 °C junction temperature, and AEC-Q101 qualified for automotive load dump protection.
For engineers reviewing the SM5S10AHE3_A/I datasheet, SM5S10AHE3_A/I pinout, SM5S10AHE3_A/I application, or SM5S10AHE3_A/I equivalent, this device is selected for high-reliability 12 V automotive power rail clamping where low leakage (<15 μA at VWM), low forward voltage (<2.0 V @ 100 A), and MSL Level 1 solderability are required.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to achieve stable clamping under repetitive surge stress. Its DO-218AB package features a metal heatsink acting as the anode terminal, enabling efficient thermal conduction with RθJM = 0.45 °C/W and TJ max = 175 °C operation.
It meets ISO 7637-2 load dump surge requirements under defined test conditions and delivers 212 A peak pulse current (IPPM) at 10/1000 μs with 17.0 V clamping voltage (VC), supporting robust protection of downstream DC-DC converters and microcontrollers in harsh automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before clamping begins; sets threshold for 12 V automotive system protection. |
| VBR (min/typ/max) | 11.1 / 11.7 / 12.3 V - Verified breakdown range at 5 mA; ensures consistent turn-on across production lots and temperature. |
| VC @ IPPM | 17.0 V - Clamping voltage at 212 A peak pulse; limits transients seen by protected ICs to safe levels. |
| PPPM (10/1000 μs) | 3600 W - Peak surge power handling; supports high-energy load dump events without failure. |
| TJ max | 175 °C - Maximum junction temperature rating; enables use in under-hood applications with minimal derating. |
| Polarity | Unidirectional - Anode-connected heatsink configuration; requires correct PCB orientation for proper circuit integration. |
| Qualification | AEC-Q101 qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD. |
Pinout & Package
Package: DO-218AB - Surface-mount, anode-heatsink package with matte tin-plated leads, UL 94 V-0 molding compound, and MSL Level 1 rating (245 °C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Heatsink) | Positive clamping terminal | Electrically connected to metal heatsink base; must be routed to ground or low-impedance return path for effective surge shunting. |
| Cathode (Lead 1) | Transient input terminal | Connected to protected line (e.g., battery rail); conducts surge current to anode during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation optimized design | Enables stable VBR and low leakage (<15 μA at VWM) over lifetime and temperature extremes. |
| TJ = 175 °C capability | Supports placement near heat sources (e.g., power modules) without thermal derating penalties in engine bay designs. |
| Meets ISO 7637-2 surge specification | Validated for standardized automotive load dump waveforms, reducing need for additional external filtering. |
| HE3 suffix whisker resistance | Complies with JESD 201 Class 2, eliminating risk of tin whisker growth-induced short circuits in long-life systems. |
| RoHS-compliant & AEC-Q101 qualified | Meets global environmental regulations and automotive qualification requirements out-of-box, simplifying supply chain compliance. |
Applications
| Automotive Load Dump Protection | 12 V Power Rail Clamping |
|---|---|
Use Scenario: Protecting ECUs, body control modules, and infotainment systems during alternator load dump events in 12 V vehicle electrical systems. IC Role / Device Role / Timing Role: Primary clamping element placed between battery rail and protected subsystem input. Use Value: Limits transient voltage to ≤17.0 V at 212 A, preventing damage to downstream 3.3 V/5 V regulators and microcontrollers. | Use Scenario: Safeguarding DC-DC converter inputs against switching transients from solenoids, relays, and motors in chassis electronics. IC Role / Device Role / Timing Role: Fast-response voltage clamp on main power feed, activated within nanoseconds of overvoltage onset. Use Value: Delivers 3600 W peak pulse power handling with <2.0 V forward drop at 100 A, minimizing conduction loss during normal operation. |
| Engine Control Unit Input Protection | Telematics Module Power Interface |
Use Scenario: Shielding sensor signal conditioning circuits and MCU I/O from coupled transients in high-noise engine compartments. IC Role / Device Role / Timing Role: Secondary-level protection after primary fuse and upstream filter, placed adjacent to sensitive analog front-ends. Use Value: Maintains <15 μA reverse leakage at 10 V VWM up to 175 °C, preserving signal integrity and low-power sleep modes. | Use Scenario: Securing LTE/V2X module power inputs exposed to battery fluctuations and jump-start surges in connected vehicles. IC Role / Device Role / Timing Role: Standoff-rated TVS on main 12 V input, coordinated with ceramic capacitors to absorb fast-rising edges. Use Value: Achieves MSL Level 1 reflow compatibility and AEC-Q101 qualification, ensuring manufacturing robustness and field reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SM5S10AHM3 | Same electrical specs, but HM3 suffix indicates halogen-free, RoHS-compliant, and AEC-Q101 qualified with different packaging (7" tape/reel vs. 13") and revision code. | Identical functional role; differs only in packaging format and tape orientation (anode direction). | Select SM5S10AHM3 for new designs requiring updated material compliance or alternate reel logistics. |
| SMAJ10A | Lower PPPM (400 W), smaller SMA package (DO-214AC), lower TJ max (150 °C), same VWM/VBR range. | Not suitable for full load dump duty; limited to lower-energy transients in non-automotive or cabin-mounted applications. | Choose SMAJ10A only for cost-sensitive, space-constrained, non-under-hood applications where 3600 W surge capacity is unnecessary. |
Compared with SM5S10AHE3_A/I, SM5S10AHM3 offers identical protection performance with updated packaging logistics, while SMAJ10A trades significant surge capacity and temperature capability for footprint reduction-making it unsuitable as a direct replacement in automotive load dump roles.
Availability
SM5S10AHE3_A/I is available at Aetrix Electronics and suitable for automotive ECU protection, 12 V power rail clamping, and telematics module interface applications requiring stable component supply across extended product lifecycles.
Supply support for SM5S10AHE3_A/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 high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The SM5SxxA family is engineered specifically for high-energy automotive transient suppression, emphasizing thermal robustness, AEC-Q101 compliance, and ISO 7637-2 load dump performance in surface-mount form.
FAQ
What is the maximum clamping voltage of the SM5S10AHE3_A/I under surge conditions?
The SM5S10AHE3_A/I has a maximum clamping voltage (VC) of 17.0 V when subjected to its rated peak pulse current of 212 A using the 10/1000 μs waveform. This value is measured per standard test conditions at TA = 25 °C and ensures downstream components see no more than 17.0 V during worst-case transients. The SM5S10AHE3_A/I maintains this clamping performance across its full operating temperature range due to its passivated anisotropic rectifier structure.
Is the SM5S10AHE3_A/I suitable for new automotive designs despite the "Not For New Designs" note?
The "Not For New Designs" designation applies to the broader SM5S10A–SM5S36A series and reflects Vishay's recommendation to adopt the newer HM3-suffix variants (e.g., SM5S10AHM3) for future projects. However, SM5S10AHE3_A/I remains fully qualified (AEC-Q101), in active production, and supported with documented specifications. It is appropriate for legacy design refreshes, second-source needs, or programs aligned with existing HE3 logistics.
How does the DO-218AB package of the SM5S10AHE3_A/I improve thermal performance compared to SMA or SMC packages?
The DO-218AB package of the SM5S10AHE3_A/I integrates a large metal heatsink as the anode terminal, achieving a junction-to-mount thermal resistance (RθJM) of just 0.45 °C/W-significantly lower than SMA (RθJM ≈ 15–20 °C/W) or SMC (RθJM ≈ 5–8 °C/W). This allows the SM5S10AHE3_A/I to sustain 3600 W surges with minimal temperature rise, enabling reliable operation at TJ = 175 °C in high-ambient environments like engine compartments.
Does the SM5S10AHE3_A/I meet ISO 7637-2, and what test conditions apply?
Yes, the SM5S10AHE3_A/I meets ISO 7637-2 surge requirements as verified by Vishay under defined test conditions-including Pulse 1 (inductive load disconnect), Pulse 2a (load dump simulation), and Pulse 5a (alternator load dump). Compliance is confirmed in the official datasheet (Doc. #88382), though exact test setup (e.g., source impedance, coupling network) must match application-specific validation per ISO 7637-2 Annex A.
What is the meaning of the "HE3_A/I" suffix in SM5S10AHE3_A/I?
The "HE3_A/I" suffix in SM5S10AHE3_A/I decodes as follows: H = AEC-Q101 qualified; E3 = RoHS-compliant, halogen-free, Pb-free termination; A = ±5 % VBR tolerance and unidirectional polarity; /I = 13-inch tape-and-reel packaging with anode oriented toward sprocket hole. This full suffix confirms material compliance, reliability grade, electrical tolerance, and logistics configuration for the SM5S10AHE3_A/I.
SM5S10AHE3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-218AB
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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):
- 212A
- 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
SM5S10AHE3_A/I FAQ
1.How can I place an order for SM5S10AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SM5S10AHE3_A/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 SM5S10AHE3_A/I reliable?
The price and inventory of SM5S10AHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM5S10AHE3_A/I is usually 5 days.
3.What payment methods are accepted for SM5S10AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM5S10AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM5S10AHE3_A/I?
SM5S10AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM5S10AHE3_A/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 SM5S10AHE3_A/I?
For technical support, including SM5S10AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM5S10AHE3_A/I requirements.
6.How does Aetrix verify that SM5S10AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SM5S10AHE3_A/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 SM5S10AHE3_A/I meets industry standards.
7.What is the process for return or replacement of SM5S10AHE3_A/I?
All SM5S10AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SM5S10AHE3_A/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 SM5S10AHE3_A/I part is unused and in its original packaging.
Return procedure for SM5S10AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM5S10AHE3_A/I Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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