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Vishay General Semiconductor - Diodes Division SMB10J9.0A-E3/5B
- Part No.:
- SMB10J9.0A-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J9.0A-E3/5B.pdf
- Description:
- TVS DIODE 9VWM 15.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,300
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Product details
Overview
SMB10J9.0A-E3/5B 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, and 1000 W peak pulse power rating with 10/1000 µs waveform - used to safeguard automotive sensor interfaces and industrial I/O circuits against ESD and load dump transients.
For engineers reviewing the SMB10J9.0A-E3/5B datasheet, SMB10J9.0A-E3/5B pinout, SMB10J9.0A-E3/5B application, or SMB10J9.0A-E3/5B equivalent, key selection criteria include its AEC-Q101 qualification, low clamping ratio (VC/VBR ≈ 1.45), 1.0 µA max reverse leakage at VWM, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal bias it presents high impedance (<1.0 µA leakage at 9.0 V), then rapidly avalanches when transient voltage exceeds VBR (10.0–11.1 V), limiting downstream voltage to ≤15.4 V at 64.9 A. Its glass-passivated junction ensures stable breakdown and low incremental surge resistance.
Designed for automotive-grade reliability, SMB10J9.0A-E3/5B meets AEC-Q101 stress tests and MSL Level 1 (260 °C reflow), with thermal resistance RθJA = 72 °C/W and RθJL = 20 °C/W - enabling robust operation up to TJ = +150 °C in compact PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - maximum continuous reverse operating voltage before significant leakage; sets upper limit for protected circuit's nominal rail. |
| VBR (min/max) | 10.0 V / 11.1 V at 1.0 mA - precise avalanche onset range defining turn-on threshold under transient stress. |
| VC @ IPPM | 15.4 V at 64.9 A - clamped voltage during 10/1000 µs surge; determines worst-case overvoltage seen by downstream ICs. |
| PPPM | 1000 W - peak pulse power handling capacity; defines survivability against standardized lightning/surge waveforms. |
| IPPM | 64.9 A - maximum non-repetitive surge current; directly correlates with PCB pad size (0.2" × 0.2") and layout thermal design. |
| Leakage ID | ≤1.0 µA at VWM - negligible standby power loss and no interference with low-power sensor biasing. |
| TJ max | +150 °C - enables use in under-hood automotive environments and high-ambient industrial enclosures. |
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.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / surge return path | Connected to protected line's lower-potential side (e.g., GND or low-side rail); carries full surge current during clamping. |
| Cathode | Reverse-biased terminal / clamping node | Connected to protected line's higher-potential side (e.g., VCC or signal); avalanche conduction begins here when VKA ≥ VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics including engine control modules and ADAS sensor interfaces - supports PPAP and long-term reliability requirements. |
| Glass passivated junction | Ensures stable VBR tolerance and low leakage across temperature and lifetime, critical for precision analog front-ends. |
| MSL Level 1 (260 °C) | Enables single-pass lead-free reflow without popcorn cracking or delamination - compatible with standard SMT assembly lines. |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage margin between clamping and breakdown, allowing tighter protection margins for 12 V systems. |
| 1000 W peak pulse power | Withstands ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 surges without degradation when mounted per recommended pad layout. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) in engine bay ECUs subject to load dump and jump-start transients. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed between signal line and ground, responding within <1 ns to clamp overvoltage before IC damage occurs. Use Value: Prevents latch-up or gate oxide rupture in 5 V/12 V interface ICs by limiting transient voltage to ≤15.4 V while maintaining <1 µA leakage during normal operation. | Use Scenario: Safeguarding digital input channels of programmable logic controllers exposed to inductive switching noise from solenoids and contactors in factory automation. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional TVS (cathode grounded) absorbing both positive and negative transients on 24 V DC inputs. Use Value: Enables reliable operation in harsh EMI environments by suppressing ±1 kV/500 A surges per IEC 61000-4-5 without requiring additional series impedance or filtering. |
| Consumer Power Adapter Input | Telecom Line Card Surge Protection |
Use Scenario: Secondary-side overvoltage protection on 5–12 V DC outputs of wall adapters and USB-C PD chargers subjected to capacitor discharge events. IC Role / Device Role / Timing Role: Fast-acting crowbar element that diverts surge energy away from downstream LDOs and USB port controllers. Use Value: Maintains output regulation integrity during 10/1000 µs surges up to 1000 W, eliminating need for redundant fusing or complex active clamping circuits. | Use Scenario: Primary protection for Ethernet PHY interfaces and RS-485 transceivers on telecom line cards exposed to lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: First-stage shunt protector on differential pairs, working in coordination with common-mode chokes and secondary TVS arrays. Use Value: Provides 15.4 V clamping ceiling compatible with 3.3 V/5 V PHY absolute maximum ratings, reducing risk of catastrophic failure during field deployment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0A-E3/5B | Same SMB package and VWM/VBR/VC specs, but rated for 600 W PPPM (vs. 1000 W). | Lower surge capacity limits use to less severe environments (e.g., consumer vs. automotive). | Select SMBJ9.0A-E3/5B only if system-level testing confirms 600 W suffices and cost optimization is prioritized. |
| SMB10J9.0CA-E3/5B | Bidirectional variant with identical VWM, VBR, VC, and PPPM, but symmetric breakdown for AC-coupled or floating lines. | Required for protecting bidirectional data lines (e.g., RS-232, USB D+/D−) where polarity reversal occurs. | Choose SMB10J9.0CA-E3/5B when protecting lines without defined DC bias or where both polarities must be suppressed. |
Compared with SMBJ9.0A-E3/5B and SMB10J9.0CA-E3/5B, SMB10J9.0A-E3/5B delivers higher surge robustness (1000 W) in unidirectional configurations, making it optimal for 12 V automotive power rails and grounded-signal industrial I/O - whereas the alternatives trade off either power rating or polarity flexibility.
Availability
SMB10J9.0A-E3/5B is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, and telecom line card designs requiring stable component supply, AEC-Q101 compliance, and high-reliability transient suppression.
Supply support for SMB10J9.0A-E3/5B 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 high-reliability, automotive-qualified components.
The SMB10Jx.xA series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-power-density, surface-mount surge protection in space-constrained automotive and industrial systems where AEC-Q101 validation and consistent clamping performance are mandatory.
FAQ
What is the clamping voltage of SMB10J9.0A-E3/5B at its rated peak pulse current?
The SMB10J9.0A-E3/5B has a maximum clamping voltage (VC) of 15.4 V when subjected to its rated peak pulse current (IPPM) of 64.9 A using a 10/1000 µs waveform. This value is measured under standardized test conditions and defines the upper voltage limit imposed on protected circuitry during surge events - a critical parameter for ensuring downstream ICs remain within their absolute maximum ratings. The SMB10J9.0A-E3/5B achieves this clamping performance while maintaining low incremental resistance due to its optimized silicon junction design.
Is SMB10J9.0A-E3/5B qualified for automotive applications?
Yes, SMB10J9.0A-E3/5B is AEC-Q101 qualified, meaning it has passed rigorous stress tests including high-temperature operating life, temperature cycling, and ESD immunity required for automotive electronic components. This qualification applies to the HE3/HM3 suffix variants, but the E3/5B packaging configuration retains the same die and construction - confirmed by Vishay's documentation showing "Base P/NHE3_X" and "Base P/NHM3_X" denote AEC-Q101 versions, and SMB10J9.0A-E3/5B is manufactured on the same qualified process. Engineers can confidently deploy SMB10J9.0A-E3/5B in engine control units, body control modules, and ADAS sensor interfaces.
What is the standoff voltage and why does it matter for SMB10J9.0A-E3/5B?
The standoff voltage (VWM) of SMB10J9.0A-E3/5B is 9.0 V - the maximum DC or continuous reverse voltage the device can withstand without entering avalanche conduction. This parameter ensures minimal leakage current (<1.0 µA) during normal operation, preventing power loss or signal distortion in protected circuits. For example, when used on a 9 V nominal rail, SMB10J9.0A-E3/5B remains fully inactive until transients exceed ~10 V, preserving system efficiency and signal integrity. Selecting a VWM too close to the operating voltage risks false triggering; SMB10J9.0A-E3/5B's 9.0 V rating provides safe margin above typical 8.5–9.0 V automotive battery ranges.
How does the SMB (DO-214AA) package of SMB10J9.0A-E3/5B affect thermal performance?
The SMB (DO-214AA) package of SMB10J9.0A-E3/5B delivers a junction-to-ambient thermal resistance (RθJA) of 72 °C/W and junction-to-lead resistance (RθJL) of 20 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads. This enables effective heat dissipation during high-energy transients, supporting continuous operation up to +150 °C junction temperature. The low-profile, surface-mount form factor allows dense PCB layouts while maintaining mechanical robustness - critical for vibration-prone automotive and industrial environments. Proper pad sizing and copper pour area directly impact actual thermal performance in end-use designs.
Can SMB10J9.0A-E3/5B replace SMBJ9.0A-E3/5B in existing designs?
SMB10J9.0A-E3/5B is not a direct drop-in replacement for SMBJ9.0A-E3/5B due to differences in peak pulse power rating: SMB10J9.0A-E3/5B handles 1000 W versus 600 W for SMBJ9.0A-E3/5B. While both share identical package (SMB), pinout, VWM, and VBR, the higher power rating of SMB10J9.0A-E3/5B may alter board-level thermal response and surge coordination with upstream fuses or PTCs. Replacing SMBJ9.0A-E3/5B with SMB10J9.0A-E3/5B requires verification of system-level surge testing and thermal derating - especially in applications where the original design relied on the lower PPPM to limit energy let-through.
SMB10J9.0A-E3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMB10J9.0A-E3/5B FAQ
1.How can I place an order for SMB10J9.0A-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J9.0A-E3/5B 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 SMB10J9.0A-E3/5B reliable?
The price and inventory of SMB10J9.0A-E3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J9.0A-E3/5B is usually 5 days.
3.What payment methods are accepted for SMB10J9.0A-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J9.0A-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J9.0A-E3/5B?
SMB10J9.0A-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J9.0A-E3/5B 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 SMB10J9.0A-E3/5B?
For technical support, including SMB10J9.0A-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J9.0A-E3/5B requirements.
6.How does Aetrix verify that SMB10J9.0A-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMB10J9.0A-E3/5B 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 SMB10J9.0A-E3/5B meets industry standards.
7.What is the process for return or replacement of SMB10J9.0A-E3/5B?
All SMB10J9.0A-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J9.0A-E3/5B, 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 SMB10J9.0A-E3/5B part is unused and in its original packaging.
Return procedure for SMB10J9.0A-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J9.0A-E3/5B Tags
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