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Vishay General Semiconductor - Diodes Division SMB10J9.0AHM3/H
- Part No.:
- SMB10J9.0AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J9.0AHM3/H.pdf
- Description:
- TVS DIODE 9VWM 15.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,383
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Product details
Overview
SMB10J9.0AHM3/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 9.0 V stand-off voltage (VWM), 10.0–11.1 V breakdown voltage (VBR) at 1.0 mA, 15.4 V clamping voltage (VC) at 64.9 A peak pulse current (IPPM), and 1000 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed in automotive ECUs, industrial sensor interfaces, and power supply input stages.
For engineers reviewing the SMB10J9.0AHM3/H datasheet, SMB10J9.0AHM3/H pinout, SMB10J9.0AHM3/H application, or SMB10J9.0AHM3/H equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance data, clamping performance under surge, and direct alternatives for automotive-grade overvoltage protection design.
Technical Context
This device operates as a unidirectional avalanche diode, leveraging glass-passivated junction technology to achieve fast response time (<1 ns) and low incremental surge resistance. Its clamping behavior is defined by a well-controlled V-I curve with tight VBR tolerance (±5% typical) and guaranteed VC ≤15.4 V at IPPM = 64.9 A.
Rated for TJ = –55 °C to +150 °C and qualified per AEC-Q101, SMB10J9.0AHM3/H supports automotive under-hood applications where thermal stability and reliability under repetitive transients are critical. The HM3 suffix confirms halogen-free, RoHS-compliant construction with JESD201 Class 2 whisker resistance and MSL Level 1 moisture sensitivity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - maximum continuous reverse operating voltage before significant leakage; sets safe DC rail margin for 12 V automotive systems. |
| VBR (min/max) | 10.0 V / 11.1 V at IT = 1.0 mA - defines precise avalanche initiation window; ensures consistent turn-on across temperature and unit variation. |
| VC @ IPPM | 15.4 V at IPPM = 64.9 A (10/1000 µs) - peak clamped voltage seen by protected IC; determines downstream voltage stress during ISO 7637-2 Pulse 1/2a/5a events. |
| PPPM | 1000 W - peak transient energy absorption capability; enables robust protection against load dump and inductive switching surges. |
| ID @ VWM | 1.0 µA max - ultra-low reverse leakage at rated stand-off; preserves battery life and avoids false triggering in low-power sensor nodes. |
| RθJA | 72 °C/W - junction-to-ambient thermal resistance on 0.2" × 0.2" copper pads; informs PCB thermal layout requirements for sustained surge duty cycles. |
| AEC-Q101 | Qualified - validated for automotive use including temperature cycling, HTRB, and ESD; required for engine control, ADAS, and body electronics. |
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 protected line (e.g., 12 V rail); conducts during positive transients when cathode is held at higher potential. |
| Cathode | Avalanche clamping node / reference terminal | Connected to ground or lower-potential rail; establishes clamping reference and carries full surge current during reverse-biased transients. |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional TVS architecture | Enables asymmetric protection on DC-powered lines without affecting normal forward bias operation of downstream circuitry. |
| Glass-passivated junction | Ensures stable VBR and low leakage over lifetime; resists humidity-induced degradation in harsh automotive environments. |
| AEC-Q101 qualification (HM3 suffix) | Confirms reliability for automotive applications including extended temperature range, mechanical shock, and long-term stability testing. |
| MSL Level 1, 260 °C reflow compatible | Supports standard SMT assembly without pre-baking; eliminates yield loss and process complexity in high-volume manufacturing. |
| Halogen-free & RoHS-compliant (HM3) | Meets global environmental regulations and OEM material declarations; avoids restricted substances in final vehicle assemblies. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V supply inputs of engine control units (ECUs) against ISO 7637-2 load dump and inductive switching transients. IC Role / Device Role: Primary clamping element placed between battery rail and DC-DC converter input. Use Value: Limits transient voltage to ≤15.4 V, preventing damage to downstream regulators and microcontrollers while maintaining AEC-Q101 compliance. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loops) in factory automation sensors exposed to EMI and cable coupling. IC Role / Device Role: Bidirectional-capable protection (via adjacent bidirectional variant) or unidirectional rail clamp on sensor power pins. Use Value: Suppresses ±1 kV EFT bursts per IEC 61000-4-4 with sub-1 ns response, preserving signal integrity and measurement accuracy. |
| Consumer Power Adapter Input Stage | Telecom DC Feeder Line Protection |
|
Use Scenario: Overvoltage suppression on AC/DC adapter secondary-side outputs (e.g., 5 V, 9 V, 12 V rails) subject to lightning-induced surges. IC Role / Device Role: Final-stage TVS before USB-PD controller or LDO regulator input. Use Value: Absorbs 1000 W peak pulses without degradation, enabling compact adapter designs meeting UL 62368-1 surge immunity requirements. |
Use Scenario: Protecting -48 V DC feeder lines in telecom base station power distribution against induced surges from nearby lightning strikes. IC Role / Device Role: Unidirectional clamp referenced to system ground on negative rail. Use Value: Withstands repeated 10/1000 µs surges up to 64.9 A while maintaining VWM = 9.0 V margin above nominal -48 V, ensuring uninterrupted service. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMB10J9.0AHE3/H | Same electrical specs, but RoHS-compliant commercial grade (E3) without halogen-free certification; no AEC-Q101 qualification. | Approved for industrial/commercial use only; not permitted in automotive production programs requiring AEC-Q101 traceability. | Select SMB10J9.0AHE3/H only for cost-sensitive non-automotive designs where halogen content and automotive qualification are not mandated. |
| SMBJ9.0A-HM3 | Identical VWM (9.0 V), VBR (10.0–11.1 V), and VC (15.4 V), but rated for 600 W PPPM (vs. 1000 W); lower IPPM = 39.1 A. | Insufficient for high-energy load dump events (e.g., ISO 7637-2 Pulse 5a); limited to lower-tier surge immunity standards. | Choose SMBJ9.0A-HM3 only when system-level surge testing requires ≤600 W clamping capacity and board space constraints favor smaller footprint variants. |
Compared with SMB10J9.0AHM3/H, SMB10J9.0AHE3/H lacks AEC-Q101 validation and halogen-free status, while SMBJ9.0A-HM3 trades 40% lower surge power rating for potentially tighter board placement - making SMB10J9.0AHM3/H the sole choice for AEC-Q101-compliant 1000 W automotive protection.
Availability
SMB10J9.0AHM3/H is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface development, and telecom DC power system integration requiring stable component supply, full AEC-Q101 documentation, and halogen-free compliance.
Supply support for SMB10J9.0AHM3/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, power density, and automotive qualification.
The SMB10J series belongs to Vishay's TRANSZORB® high-power TVS platform, engineered specifically for demanding automotive and industrial surge environments where 1000 W clamping, AEC-Q101 validation, and thermal robustness are mandatory.
FAQ
What is the clamping voltage of SMB10J9.0AHM3/H at its rated peak pulse current?
The SMB10J9.0AHM3/H has a maximum clamping voltage (VC) of 15.4 V when subjected to its rated peak pulse current (IPPM) of 64.9 A using the standardized 10/1000 µs waveform. This value is measured under specified test conditions (TA = 25 °C, mounted on 0.2" × 0.2" copper pads) and defines the upper voltage limit imposed on protected circuitry during surge events. The SMB10J9.0AHM3/H maintains this clamping performance across its qualified operating temperature range.
Is SMB10J9.0AHM3/H qualified for automotive applications?
Yes, SMB10J9.0AHM3/H is fully AEC-Q101 qualified, as confirmed by its HM3 suffix and explicit listing in Vishay's AEC-Q101-certified product documentation. It undergoes rigorous stress testing including temperature cycling, high-temperature reverse bias (HTRB), and electrostatic discharge (ESD), making it suitable for engine control modules, ADAS sensors, and body electronics. The SMB10J9.0AHM3/H meets all requirements for automotive-grade transient suppression in production vehicles.
What does the "HM3" suffix mean in SMB10J9.0AHM3/H?
The "HM3" suffix in SMB10J9.0AHM3/H indicates halogen-free, RoHS-compliant construction with JESD201 Class 2 whisker resistance and AEC-Q101 qualification. It distinguishes this variant from commercial-grade versions (e.g., E3) and confirms compliance with automotive material restrictions and reliability standards. The SMB10J9.0AHM3/H HM3 designation is traceable to Vishay's official ordering information and material declarations.
How does SMB10J9.0AHM3/H differ from SMBJ9.0A-HM3?
SMB10J9.0AHM3/H delivers 1000 W peak pulse power (PPPM) and 64.9 A peak pulse current (IPPM), whereas SMBJ9.0A-HM3 is rated for only 600 W PPPM and 39.1 A IPPM - a 40% reduction in surge handling capability. Both share identical VWM (9.0 V), VBR (10.0–11.1 V), and VC (15.4 V), but the SMB10J9.0AHM3/H is uniquely suited for high-energy automotive load dump protection where the SMBJ9.0A-HM3 falls short.
What is the thermal resistance of SMB10J9.0AHM3/H, and how does it affect PCB layout?
The SMB10J9.0AHM3/H has a typical junction-to-ambient thermal resistance (RθJA) of 72 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value directly impacts PCB thermal design: larger copper areas or internal ground planes reduce effective RθJA, improving surge endurance during repetitive events. For reliable operation under frequent transients, designers should follow Vishay's recommended pad layout and avoid excessive trace length or narrow traces that increase thermal impedance. The SMB10J9.0AHM3/H datasheet provides exact mounting dimensions for optimal thermal performance.
SMB10J9.0AHM3/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):
- 9V
- Voltage - Breakdown (Min):
- 10V
- Voltage - Clamping (Max) @ Ipp:
- 15.4V
- Current - Peak Pulse (10/1000µs):
- 64.9A
- 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)
SMB10J9.0AHM3/H FAQ
1.How can I place an order for SMB10J9.0AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J9.0AHM3/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 SMB10J9.0AHM3/H reliable?
The price and inventory of SMB10J9.0AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J9.0AHM3/H is usually 5 days.
3.What payment methods are accepted for SMB10J9.0AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J9.0AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J9.0AHM3/H?
SMB10J9.0AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J9.0AHM3/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 SMB10J9.0AHM3/H?
For technical support, including SMB10J9.0AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J9.0AHM3/H requirements.
6.How does Aetrix verify that SMB10J9.0AHM3/H is sourced from the original manufacturer or authorized distributors?
All SMB10J9.0AHM3/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 SMB10J9.0AHM3/H meets industry standards.
7.What is the process for return or replacement of SMB10J9.0AHM3/H?
All SMB10J9.0AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J9.0AHM3/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 SMB10J9.0AHM3/H part is unused and in its original packaging.
Return procedure for SMB10J9.0AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J9.0AHM3/H Tags
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