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Vishay General Semiconductor - Diodes Division SMB8J9.0C-E3/52
- Part No.:
- SMB8J9.0C-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB8J9.0C-E3/52.pdf
- Description:
- TVS DIODE 9VWM 16.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,551
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Product details
Overview
SMB8J9.0C-E3/52 from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AA (SMB) package, designed for high-energy surge protection on signal and power lines. It features 9.0 V stand-off voltage (VWM), 15.4 V maximum clamping voltage (VC) at 20 A peak pulse current (IPPM), and 800 W peak pulse power (PPPM) with 10/1000 μs waveform. It is AEC-Q101 qualified and used to protect automotive sensor interfaces and industrial I/O lines against ESD and load dump transients.
For engineers reviewing the SMB8J9.0C-E3/52 datasheet, SMB8J9.0C-E3/52 pinout, SMB8J9.0C-E3/52 application, or SMB8J9.0C-E3/52 equivalent, key selection criteria include bi-directional clamping capability, low leakage (<1.0 μA at VWM), RoHS-compliant matte tin terminations, MSL Level 1 rating, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This bi-directional TVS diode operates symmetrically across both polarities, enabling robust protection of AC-coupled or differential signal paths without polarity constraints. Its glass-passivated junction ensures stable breakdown behavior and low incremental surge resistance under repetitive transient stress.
The device complies with ANSI/IEEE C62.35 for transient suppression and meets AEC-Q101 stress testing requirements for automotive under-hood applications. Thermal resistance is characterized at RθJA = 72 °C/W (typ.) and RθJL = 20 °C/W (typ.), supporting reliable operation up to TJ = 150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - Maximum continuous reverse operating voltage before clamping begins; defines safe signal swing margin for protected line. |
| VBR (min/max) | 10.0 V / 11.1 V - Breakdown occurs within this range at 1.0 mA test current; ensures predictable turn-on threshold. |
| VC @ IPPM | 15.4 V at 20 A - Clamped voltage during 10/1000 μs surge; limits downstream IC stress to safe levels. |
| PPPM | 800 W - Peak pulse power handling per 10/1000 μs waveform; supports high-energy transients like ISO 7637-2 Pulse 5a. |
| ID @ VWM | <1.0 μA - Ultra-low reverse leakage preserves signal integrity and minimizes standby power loss. |
| TJ max. | 150 °C - Maximum junction temperature rating enables use in under-hood automotive environments. |
| Package | DO-214AA (SMB) - Standard surface-mount outline with 0.220" body length; compatible with JEDEC MS-012AC footprint. |
Pinout & Package
DO-214AA (SMB) package: bi-directional device with no polarity marking; symmetrical terminals suitable for mounting across differential or AC lines. Cathode band absent; terminals are non-polarized.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals serve identical roles; bidirectional clamping occurs regardless of voltage polarity applied. |
| Case | Thermal and mechanical interface | Plastic molded case provides UL 94 V-0 flammability rating and mechanical stability during reflow soldering. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD22-A114. |
| Glass passivated junction | Ensures consistent breakdown voltage tolerance and long-term stability under thermal and electrical stress. |
| MSL Level 1 (260 °C peak) | Enables standard lead-free reflow without moisture-induced damage; no baking required prior to assembly. |
| Matte tin plating (J-STD-002 compliant) | Guarantees reliable solder wetting and intermetallic formation on PCB pads and stencils. |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes overvoltage exposure during surge events-critical for protecting 12 V automotive microcontrollers. |
Applications
| Automotive Sensor Interface | Industrial Digital I/O Protection |
|---|---|
Use Scenario: Protecting LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) in engine control modules. IC Role / Device Role / Timing Role: Bi-directional TVS clamps negative-going load dump spikes and positive-going ESD events on bidirectional data lines. Use Value: Maintains signal fidelity below 15.4 V during 20 A surges, preventing latch-up or gate oxide damage in connected ASICs. |
Use Scenario: Safeguarding PLC digital input channels exposed to relay coil flyback and field wiring transients. IC Role / Device Role / Timing Role: Fast-response (sub-nanosecond) clamping absorbs 800 W energy without degradation across repeated switching cycles. Use Value: Eliminates need for external series impedance or RC filtering while meeting IEC 61000-4-5 Level 3 immunity requirements. |
| USB 2.0 Data Line Protection | DC Power Rail Surge Suppression |
Use Scenario: Shielding USB D+/D− lines in automotive infotainment head units from cable discharge events. IC Role / Device Role / Timing Role: Symmetrical clamping prevents data skew or differential mode distortion during ±8 kV contact ESD (IEC 61000-4-2). Use Value: Junction capacitance <100 pF at zero bias ensures minimal signal rise-time degradation at 480 Mbps. |
Use Scenario: Suppressing load dump transients on 12 V battery-fed subsystems such as ADAS camera modules. IC Role / Device Role / Timing Role: Handles 800 W peak power with 10/1000 μs waveform, limiting rail voltage excursion to ≤15.4 V. Use Value: Enables direct connection to unregulated battery rails without upstream DC-DC stage derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0CA | Same VWM (9.0 V), but lower PPPM (600 W) and higher VC (17.0 V at 10 A); not AEC-Q101 qualified. | Limited to commercial-grade industrial equipment; unsuitable for automotive under-hood deployment. | Select when cost sensitivity outweighs automotive qualification and higher surge margin. |
| SMCJ9.0A | Higher PPPM (1500 W), same VWM (9.0 V), larger DO-214AB (SMC) package; uni-directional only. | Requires polarity-aware layout; better suited for unidirectional 12 V supply rail protection with >1 kW surge needs. | Choose for higher power handling where board space allows larger footprint and polarity is fixed. |
Compared with SMBJ9.0CA and SMCJ9.0A, SMB8J9.0C-E3/52 uniquely delivers AEC-Q101 compliance, bi-directional symmetry, and optimized 800 W/15.4 V clamping in the compact SMB outline-making it the preferred choice for space-constrained automotive sensor nodes requiring zero-polarity dependency.
Availability
SMB8J9.0C-E3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial digital I/O protection, USB 2.0 data line safeguarding, and 12 V DC power rail surge suppression requiring stable component supply and full traceability.
Supply support for SMB8J9.0C-E3/52 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, optoelectronics, and passive components for automotive, industrial, and computing markets.
The SMB8J series belongs to Vishay's TRANSZORB® TVS portfolio, engineered specifically for high-power-density, AEC-Q101-compliant transient suppression in harsh automotive and industrial environments.
FAQ
What is the clamping voltage of SMB8J9.0C-E3/52 at its rated peak pulse current?
The SMB8J9.0C-E3/52 has a maximum clamping voltage (VC) of 15.4 V when subjected to its rated peak pulse current (IPPM) of 20 A under a 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in Vishay's Document Number 88422, ensuring predictable overvoltage limiting for downstream circuitry.
Is SMB8J9.0C-E3/52 suitable for automotive applications?
Yes, SMB8J9.0C-E3/52 is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments. Its 150 °C maximum junction temperature, MSL Level 1 reflow compatibility, and glass-passivated junction meet stringent automotive reliability requirements documented in Vishay's 88422 specification sheet.
What does the "C" in SMB8J9.0C-E3/52 indicate?
The "C" suffix in SMB8J9.0C-E3/52 denotes bi-directional configuration, distinguishing it from uni-directional variants (e.g., SMB8J9.0A). This means the device provides symmetrical clamping for both positive and negative transients without polarity dependence-critical for protecting AC-coupled or differential signal paths.
What is the reverse leakage current of SMB8J9.0C-E3/52 at its stand-off voltage?
At its 9.0 V stand-off voltage (VWM), the SMB8J9.0C-E3/52 exhibits a maximum reverse leakage current (ID) of 1.0 μA at TA = 25 °C. This ultra-low leakage preserves signal integrity and minimizes power loss in always-on automotive and industrial monitoring circuits.
Does SMB8J9.0C-E3/52 require special PCB layout considerations?
Yes-the SMB8J9.0C-E3/52 should be mounted on minimum recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve rated 800 W peak pulse power dissipation. Reduced pad area degrades thermal performance and lowers actual surge capability, as specified in Figure 2 of Vishay Document 88422.
SMB8J9.0C-E3/52 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 9V
- Voltage - Breakdown (Min):
- 10V
- Voltage - Clamping (Max) @ Ipp:
- 16.9V
- Current - Peak Pulse (10/1000µs):
- 47.3A
- Power - Peak Pulse:
- 800W
- 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)
SMB8J9.0C-E3/52 FAQ
1.How can I place an order for SMB8J9.0C-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB8J9.0C-E3/52 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 SMB8J9.0C-E3/52 reliable?
The price and inventory of SMB8J9.0C-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB8J9.0C-E3/52 is usually 5 days.
3.What payment methods are accepted for SMB8J9.0C-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB8J9.0C-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB8J9.0C-E3/52?
SMB8J9.0C-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB8J9.0C-E3/52 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 SMB8J9.0C-E3/52?
For technical support, including SMB8J9.0C-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB8J9.0C-E3/52 requirements.
6.How does Aetrix verify that SMB8J9.0C-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMB8J9.0C-E3/52 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 SMB8J9.0C-E3/52 meets industry standards.
7.What is the process for return or replacement of SMB8J9.0C-E3/52?
All SMB8J9.0C-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB8J9.0C-E3/52, 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 SMB8J9.0C-E3/52 part is unused and in its original packaging.
Return procedure for SMB8J9.0C-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB8J9.0C-E3/52 Tags
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