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Vishay General Semiconductor - Diodes Division SMB10J17AHM3/H
- Part No.:
- SMB10J17AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J17AHM3/H.pdf
- Description:
- TVS DIODE 17VWM 27.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,416
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Product details
Overview
SMB10J17AHM3/H from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for high-energy surge protection on DC power rails and signal lines. It features a 17 V stand-off voltage (VWM), 18.9–20.9 V breakdown voltage (VBR at 1 mA), 1000 W peak pulse power (10/1000 µs), 36.2 A peak pulse current (IPPM), and clamps to ≤27.6 V at rated surge - ideal for automotive power rail protection per AEC-Q101.
For engineers reviewing the SMB10J17AHM3/H datasheet, SMB10J17AHM3/H pinout, SMB10J17AHM3/H application, or SMB10J17AHM3/H equivalent, this device delivers validated automotive-grade surge immunity with halogen-free, RoHS-compliant construction, MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This unidirectional TVS diode operates as a voltage-clamping overvoltage protector, leveraging a glass-passivated silicon junction to achieve sub-nanosecond response time and low incremental surge resistance. Its 1000 W peak pulse rating (10/1000 µs waveform) and 27.6 V clamping voltage at 36.2 A ensure robust protection of downstream MOSFETs, ICs, and sensors against inductive switching transients and load dump events.
Qualified to AEC-Q101 and rated for -55 °C to +150 °C operation, SMB10J17AHM3/H supports automotive electronics where reliability under thermal cycling and mechanical stress is critical. The HM3 suffix confirms halogen-free, RoHS-compliant materials and JESD201 Class 2 whisker resistance - essential for long-life vehicle ECUs and ADAS modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 17 V - maximum continuous reverse operating voltage before conduction begins; defines safe DC rail margin for 12 V automotive systems. |
| VBR (min/max) | 18.9 V / 20.9 V at 1 mA - guaranteed breakdown threshold ensures predictable turn-on during overvoltage events. |
| VC @ IPPM | ≤27.6 V at 36.2 A - clamping voltage limits stress on protected ICs; enables use with 30 V-rated components. |
| PPPM | 1000 W (10/1000 µs) - energy-handling capacity sufficient for ISO 7637-2 Pulse 1 & 2a transients in automotive applications. |
| IFSM | 100 A (8.3 ms half-sine) - surge current rating supports protection against alternator load dump without failure. |
| TJ max | +150 °C - junction temperature limit compatible with under-hood automotive environments and high-power PCB layouts. |
| RθJA | 72 °C/W - thermal resistance informs heatsinking requirements when mounted on 0.2" × 0.2" copper pads. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD22-B102. Cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / surge return path | Connected to ground or low-impedance return plane; forms clamping loop with cathode. |
| Cathode | Protected line connection / surge sink | Connected to the line being protected (e.g., 12 V rail); conducts surge current to anode during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing. |
| Halogen-free & RoHS-compliant (HM3) | Meets global environmental compliance mandates without compromising surge performance or thermal stability. |
| MSL Level 1 (260 °C peak) | Enables standard lead-free reflow without pre-baking; compatible with high-volume SMT assembly lines. |
| Glass-passivated junction | Ensures stable VBR tolerance and low leakage (<1 µA at VWM) across temperature and lifetime. |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes protective voltage overshoot, reducing risk of latch-up or gate oxide damage in MOSFETs and microcontrollers. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V supply inputs of engine control units (ECUs) and body control modules (BCMs) against ISO 7637-2 load dump and inductive switching spikes. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between battery rail and input filter capacitor, conducting surge energy to ground during overvoltage. Use Value: Clamps transients to ≤27.6 V, safeguarding 30 V-rated power management ICs and CAN transceivers without derating design margins. |
Use Scenario: Shielding analog sensor signal lines (e.g., pressure, temperature) in factory automation PLCs from ESD and relay-coil flyback coupling. IC Role / Device Role / Timing Role: Low-capacitance TVS installed at connector entry point, shunting fast transients before they reach precision ADC front-ends. Use Value: Sub-ns response and <1 µA leakage at 17 V preserve signal integrity and measurement accuracy in 24 V industrial I/O modules. |
| Consumer Power Adapter Input Stage | Telecom DC Feeder Line Protection |
|
Use Scenario: Safeguarding primary-side controllers and rectifiers in universal-input AC/DC adapters against lightning-induced surges on mains-derived DC bus. IC Role / Device Role / Timing Role: Standoff-rated TVS placed across bulk capacitor input, absorbing repetitive 1000 W pulses without degradation. Use Value: 1000 W rating and 150 °C TJ max enable reliable operation in compact, thermally constrained adapter enclosures. |
Use Scenario: Protecting PoE-powered equipment (e.g., IP cameras, wireless APs) from surges entering via 48 V DC feeder lines in outdoor telecom cabinets. IC Role / Device Role / Timing Role: Unidirectional TVS integrated into DC input protection circuit, clamping common-mode transients induced by nearby lightning strikes. Use Value: Halogen-free HM3 construction meets telecom flame-safety standards while maintaining 27.6 V clamping for 57 V max PoE+ systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMB10J17AHE3/H | Same electrical specs and SMB package; RoHS-compliant but not halogen-free (E3 vs HM3). | Lacks halogen-free certification; suitable for commercial, non-automotive applications where material compliance is less stringent. | Select SMB10J17AHE3/H only if halogen-free requirement is waived and cost optimization is prioritized. |
| SMAJ17A | Lower 400 W PPPM, same VWM/VBR; SMA (DO-214AC) package with smaller pad area and higher RθJA. | Insufficient for ISO 7637-2 Pulse 5a load dump; limited to lower-energy transients in consumer or computing applications. | Choose SMAJ17A only for space-constrained designs where 400 W surge handling is adequate and automotive qualification is unnecessary. |
Compared with SMB10J17AHE3/H and SMAJ17A, SMB10J17AHM3/H uniquely combines AEC-Q101 qualification, halogen-free construction, and full 1000 W surge capability - making it the only option qualified for under-hood automotive power rail protection without layout or material compromise.
Availability
SMB10J17AHM3/H is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and telecom DC feeder line protection requiring stable component supply, long-term lifecycle support, and traceable halogen-free sourcing.
Supply support for SMB10J17AHM3/H 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 reliability, efficiency, and application-specific validation.
The SMB10J series is engineered for high-power-density transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where AEC-Q101 compliance and repeatable clamping performance are mandatory.
FAQ
What is the clamping voltage of SMB10J17AHM3/H at its rated peak pulse current?
The SMB10J17AHM3/H clamps to a maximum of 27.6 V when subjected to its rated peak pulse current of 36.2 A (10/1000 µs waveform). This value is measured per ANSI/IEEE C62.35 and guarantees protection for downstream components rated up to 30 V, such as automotive CAN transceivers and power management ICs. The SMB10J17AHM3/H datasheet specifies this clamping voltage under standardized test conditions with proper PCB thermal management.
Is SMB10J17AHM3/H suitable for automotive applications?
Yes, SMB10J17AHM3/H is AEC-Q101 qualified and specifically designed for automotive use, including engine control units, body electronics, and ADAS modules. Its HM3 suffix confirms halogen-free, RoHS-compliant construction and JESD201 Class 2 whisker resistance - all validated per automotive reliability standards. The SMB10J17AHM3/H operates from -55 °C to +150 °C and withstands ISO 7637-2 load dump transients, making it appropriate for under-hood deployment.
What does the "HM3" suffix mean in SMB10J17AHM3/H?
The "HM3" suffix in SMB10J17AHM3/H indicates halogen-free, RoHS-compliant construction with matte tin-plated leads that meet JESD201 Class 2 whisker resistance and J-STD-002 solderability standards. Unlike the E3 variant, HM3 ensures full compliance with automotive and green electronics directives requiring absence of brominated flame retardants and other halogenated compounds - a mandatory specification for many Tier 1 automotive suppliers.
How does SMB10J17AHM3/H differ from SMB10J17AHE3/H?
SMB10J17AHM3/H and SMB10J17AHE3/H share identical electrical parameters (VWM, VBR, VC, PPPM) and SMB package, but differ in material compliance: HM3 is halogen-free and RoHS-compliant, while HE3 is RoHS-compliant only. Both are AEC-Q101 qualified, but SMB10J17AHM3/H meets stricter automotive material specifications required for modern EV platforms and export markets with halogen bans. The SMB10J17AHM3/H is preferred where material declarations and substance restrictions are enforced.
What is the recommended PCB pad layout for SMB10J17AHM3/H?
Vishay specifies a minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pad area for each terminal of SMB10J17AHM3/H to achieve rated thermal performance and 1000 W pulse power dissipation. The pad layout must follow the DO-214AA outline with 0.086" (2.18 mm) minimum cathode/anode pad width and 0.220" (5.59 mm) overall length. Proper pad sizing ensures RθJA remains at 72 °C/W and prevents premature thermal runaway during repetitive surge events. The SMB10J17AHM3/H mounting instructions are detailed in the 88422 datasheet Figure 6.
SMB10J17AHM3/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 17V
- Voltage - Breakdown (Min):
- 18.9V
- Voltage - Clamping (Max) @ Ipp:
- 27.6V
- Current - Peak Pulse (10/1000µs):
- 36.2A
- Power - Peak Pulse:
- 1000W (1kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMB10J17AHM3/H FAQ
1.How can I place an order for SMB10J17AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J17AHM3/H 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 SMB10J17AHM3/H reliable?
The price and inventory of SMB10J17AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J17AHM3/H is usually 5 days.
3.What payment methods are accepted for SMB10J17AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J17AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J17AHM3/H?
SMB10J17AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J17AHM3/H 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 SMB10J17AHM3/H?
For technical support, including SMB10J17AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J17AHM3/H requirements.
6.How does Aetrix verify that SMB10J17AHM3/H is sourced from the original manufacturer or authorized distributors?
All SMB10J17AHM3/H 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 SMB10J17AHM3/H meets industry standards.
7.What is the process for return or replacement of SMB10J17AHM3/H?
All SMB10J17AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J17AHM3/H, 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 SMB10J17AHM3/H part is unused and in its original packaging.
Return procedure for SMB10J17AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J17AHM3/H Tags
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