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Vishay General Semiconductor - Diodes Division SMB10J9.0AHE3_A/I
- Part No.:
- SMB10J9.0AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J9.0AHE3_A/I.pdf
- Description:
- TVS DIODE 9VWM 15.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,233
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Product details
Overview
SMB10J9.0AHE3_A/I 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 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 SMB10J9.0AHE3_A/I datasheet, SMB10J9.0AHE3_A/I pinout, SMB10J9.0AHE3_A/I application, or SMB10J9.0AHE3_A/I equivalent, key selection criteria include AEC-Q101 qualification, unidirectional polarity, 150 °C max junction temperature, low incremental surge resistance, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a clamping device that transitions from high-impedance blocking state to low-impedance conduction when reverse voltage exceeds VBR, limiting transient overvoltage to ≤15.4 V at 64.9 A. Its glass-passivated junction ensures stable breakdown and fast response (<1 ns), while MSL Level 1 rating supports lead-free reflow up to 260 °C peak.
The SMB10J9.0AHE3_A/I is rated for non-repetitive 8.3 ms half-sine surge current up to 100 A (IFSM), and exhibits 72 °C/W junction-to-ambient thermal resistance (RθJA) under standard PCB mounting. Its 1.0 µA max reverse leakage at 9.0 V enables low-power standby integrity in always-on automotive modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR min/max | 10.0 V / 11.1 V at 1.0 mA - tight breakdown tolerance ensures predictable turn-on across temperature |
| VC @ IPPM | 15.4 V at 64.9 A - clamping voltage defines worst-case protected circuit stress during 10/1000 µs surge |
| PPPM | 1000 W - peak power handling capacity with standardized 10/1000 µs waveform |
| TJ max | +150 °C - enables operation in under-hood automotive environments and industrial enclosures |
| Polarity | Unidirectional - cathode-banded configuration protects DC rails with defined forward/reverse behavior |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; polarity indicated by cathode band on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line (e.g., GND or return path) |
| Cathode | Reverse-biased clamping terminal | Connected to higher-potential side (e.g., VBUS or signal line); color band identifies this pin |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronics including engine control, ADAS sensors, and infotainment power domains |
| Glass passivated junction | Ensures stable VBR over lifetime and immunity to moisture-induced parameter drift |
| MSL Level 1 | Supports single-reflow lead-free assembly without preconditioning (peak 260 °C) |
| Low incremental surge resistance | Minimizes voltage overshoot during fast transients, improving protection margin for downstream ICs |
| 1000 W PPPM rating | Handles ISO 7637-2 Pulse 1, 2a, 3a/b, and IEC 61000-4-5 Level 4 surges on 12 V systems |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed microcontroller power inputs in body control modules against load dump and alternator transients. IC Role / Device Role / Timing Role: Clamping TVS placed between VCC and GND, activated within nanoseconds upon overvoltage detection. Use Value: Limits voltage to ≤15.4 V during 1000 W surges, preventing latch-up or damage to 5 V/3.3 V LDOs and MCU cores. | Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loop) in PLC I/O modules from field-wiring induced surges. IC Role / Device Role / Timing Role: Unidirectional shunt device mounted at connector entry point, referenced to system ground. Use Value: Maintains <1.0 µA leakage at 9.0 V, preserving loop accuracy while clamping EFT bursts to safe levels. |
| Automotive CAN Transceiver Protection | DC-DC Converter Input Stage |
Use Scenario: Secondary protection for high-speed CAN FD transceivers (e.g., TJA1044) against coupled transients on VIO or VCC pins. IC Role / Device Role / Timing Role: Standoff-rated TVS on 5 V supply rail upstream of transceiver, coordinated with primary common-mode choke filtering. Use Value: Withstands repetitive ESD events per ISO 10605 and clamps fast edges without degrading CAN signal integrity. | Use Scenario: Input surge suppression for buck converters powering ADAS cameras or radar SoCs from 12 V vehicle bus. IC Role / Device Role / Timing Role: Primary overvoltage clamp on VIN node, sized to absorb energy before input capacitor and controller IC. Use Value: 1000 W PPPM rating handles sustained load-dump energy, reducing need for oversized input capacitors or derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0AHE3_A/I | Same VWM/VBR/VC specs but 600 W PPPM rating (vs. 1000 W) | Limited to lower-energy transients (e.g., IEC 61000-4-2 ESD only, not ISO 7637-2 load dump) | Select when cost sensitivity outweighs peak surge requirement and layout space allows parallel devices |
| 1.5SMC9.0AHE3_A/I | Same electrical specs but larger SMC (DO-214AB) package; RθJA = 35 °C/W vs. 72 °C/W | Better thermal performance under sustained surge duty cycles; requires larger PCB footprint | Choose when thermal management is critical and board area permits 2.5× larger case size |
Compared with SMBJ9.0AHE3_A/I and 1.5SMC9.0AHE3_A/I, SMB10J9.0AHE3_A/I delivers 67% higher peak power handling in the same SMB footprint while maintaining AEC-Q101 compliance - making it optimal for space-constrained automotive power rails requiring robust load-dump immunity.
Availability
SMB10J9.0AHE3_A/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor signal conditioning, and DC-DC converter input protection requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMB10J9.0AHE3_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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices, with emphasis on reliability, precision, and application-specific performance.
The SMB10J series targets high-power-density transient suppression in automotive and industrial environments, engineered to meet AEC-Q101 and deliver consistent clamping under harsh thermal and surge conditions.
FAQ
What is the clamping voltage of SMB10J9.0AHE3_A/I at its rated peak pulse current?
The SMB10J9.0AHE3_A/I has a maximum clamping voltage (VC) of 15.4 V when subjected to its specified peak pulse current (IPPM) of 64.9 A using the 10/1000 µs waveform. This value is measured under standardized test conditions per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuits during surge events. The SMB10J9.0AHE3_A/I maintains this clamping performance across its qualified operating temperature range.
Is SMB10J9.0AHE3_A/I suitable for automotive applications?
Yes, SMB10J9.0AHE3_A/I is AEC-Q101 qualified and explicitly designated for automotive use with the "HE3" suffix indicating RoHS-compliant and AEC-Q101 qualified construction. It meets requirements for temperature cycling, high-temperature reverse bias, and mechanical shock relevant to engine bay, chassis, and cabin modules. The SMB10J9.0AHE3_A/I is commonly used in power distribution units, body controllers, and ADAS domain controllers where load dump and jump-start transients occur.
What does the "_A/I" suffix mean in SMB10J9.0AHE3_A/I?
The "_A/I" suffix in SMB10J9.0AHE3_A/I denotes the revision code ("A") and packaging option ("I"), where "I" specifies 3200-unit quantity on 13-inch plastic tape and reel. This matches Vishay's ordering convention shown in the datasheet's Ordering Information table. The "HE3" portion confirms RoHS compliance and AEC-Q101 qualification, while "A/I" is a manufacturing and logistics identifier - not an electrical variant. The SMB10J9.0AHE3_A/I shares identical electrical and thermal specifications with other HE3-coded variants of the same base part.
How does SMB10J9.0AHE3_A/I differ from bidirectional TVS diodes like SMB8J9.0CAHE3_A/I?
The SMB10J9.0AHE3_A/I is unidirectional and intended for DC line protection with defined polarity (cathode-banded), whereas SMB8J9.0CAHE3_A/I is bidirectional and suited for AC or symmetrical signal lines. Key differences include SMB10J9.0AHE3_A/I's 1000 W PPPM rating versus 800 W for the bidirectional version, and distinct IPPM values (64.9 A vs. 51.9 A). Their VBR and VC are matched, but the SMB10J9.0AHE3_A/I cannot replace bidirectional types in floating or AC-coupled applications without circuit redesign.
What is the thermal resistance of SMB10J9.0AHE3_A/I, and how does it affect layout?
The SMB10J9.0AHE3_A/I 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 assumes minimal copper area; increasing pad size or adding thermal vias reduces effective RθJA. For reliable operation near TJ max (150 °C), designers must ensure average power dissipation remains low - since the SMB10J9.0AHE3_A/I handles only non-repetitive surges, steady-state heating is negligible, but repeated events require thermal derating per Figure 2 in the datasheet.
SMB10J9.0AHE3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMB10J9.0AHE3_A/I FAQ
1.How can I place an order for SMB10J9.0AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J9.0AHE3_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 SMB10J9.0AHE3_A/I reliable?
The price and inventory of SMB10J9.0AHE3_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 SMB10J9.0AHE3_A/I is usually 5 days.
3.What payment methods are accepted for SMB10J9.0AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J9.0AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J9.0AHE3_A/I?
SMB10J9.0AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J9.0AHE3_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 SMB10J9.0AHE3_A/I?
For technical support, including SMB10J9.0AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J9.0AHE3_A/I requirements.
6.How does Aetrix verify that SMB10J9.0AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SMB10J9.0AHE3_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 SMB10J9.0AHE3_A/I meets industry standards.
7.What is the process for return or replacement of SMB10J9.0AHE3_A/I?
All SMB10J9.0AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J9.0AHE3_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 SMB10J9.0AHE3_A/I part is unused and in its original packaging.
Return procedure for SMB10J9.0AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J9.0AHE3_A/I Tags
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