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Vishay General Semiconductor - Diodes Division SMB8J9.0C-E3/5B
- Part No.:
- SMB8J9.0C-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB8J9.0C-E3/5B.pdf
- Description:
- TVS DIODE 9VWM 16.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMB8J9.0C-E3/5B from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AA (SMB) package, designed for robust ESD and surge protection on signal/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 - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMB8J9.0C-E3/5B datasheet, SMB8J9.0C-E3/5B pinout, SMB8J9.0C-E3/5B application, or SMB8J9.0C-E3/5B equivalent, key selection criteria include bi-directional clamping capability, AEC-Q101 qualification, RoHS-compliant matte tin terminations, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This bi-directional TVS operates symmetrically across both polarities, enabling protection of AC-coupled or differential signal paths without polarity constraints. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 µA at VWM), while the low incremental surge resistance supports consistent clamping under repetitive transients.
The device meets MSL Level 1 per J-STD-020 (peak reflow 260 °C) and is qualified to AEC-Q101 for automotive underhood and chassis 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 initiates; defines safe signal swing range for protected line. |
| VBR (min/max) | 10.0 V / 11.1 V at 1.0 mA - Confirmed breakdown threshold window ensures predictable turn-on during overvoltage events. |
| VC @ IPPM | 15.4 V at 20 A - Clamping voltage under 10/1000 µs surge; limits downstream IC stress to safe levels during ESD or lightning-induced transients. |
| PPPM | 800 W - Peak pulse power handling capacity; enables protection against IEC 61000-4-5 Level 4 surges (4 kV line-to-line) when properly mounted. |
| ID @ VWM | <1.0 µA - Ultra-low reverse leakage preserves signal integrity and battery life in always-on sensor circuits. |
| TJ max. | 150 °C - Maximum junction temperature rating supports under-hood automotive deployment and industrial high-ambient environments. |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, bi-directional configuration with no polarity marking - symmetrical terminal design allows orientation-agnostic PCB layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals function identically; bidirectional clamping occurs regardless of voltage polarity applied across device. |
| Case (body) | Thermal and mechanical interface | DO-214AA molded body provides UL 94 V-0 flammability rating and thermal path to PCB copper pads (0.2" × 0.2" recommended per terminal). |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for engine control, ADAS sensor, and infotainment modules. |
| Glass passivated junction | Ensures stable VBR tolerance and long-term parameter stability under thermal stress and humidity exposure. |
| Matte tin plated leads | Complies with J-STD-002 and JESD 22-B102 solderability standards; E3 suffix passes JESD 201 Class 1A whisker test. |
| Low profile DO-214AA package | Height ≤ 2.20 mm enables use in space-constrained modules; compatible with standard SMT pick-and-place equipment. |
Applications
| Automotive Sensor Interface | Industrial RS-485 Bus Protection |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus nodes and analog sensor outputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed directly at connector entry point to shunt transients before reaching MCU or signal conditioner. Use Value: Limits clamped voltage to 15.4 V, ensuring downstream 12 V-rated transceivers and ADC inputs remain within absolute maximum ratings during 10/1000 µs surges. |
Use Scenario: Safeguarding RS-485 transceivers in factory automation PLCs exposed to motor switching noise and ground bounce. IC Role / Device Role / Timing Role: Differential line protector between A/B bus lines and transceiver pins, absorbing common-mode and differential-mode transients. Use Value: 800 W PPPM rating and 15.4 V VC enable compliance with IEC 61000-4-4 (EFT) and IEC 61000-4-5 (surge) Level 3–4 requirements. |
| Consumer USB Port ESD Protection | Telecom DSL Line Surge Suppression |
|
Use Scenario: Secondary-level ESD protection on USB 2.0 D+/D− lines in set-top boxes and smart displays. IC Role / Device Role / Timing Role: Fast-response TVS placed after primary polymer-based TVS to handle residual sub-nanosecond ESD events per IEC 61000-4-2. Use Value: 1.0 µA ID at 9.0 V minimizes capacitive loading and DC leakage, preserving signal rise time and battery standby current. |
Use Scenario: Overvoltage protection on POTS/DSL line cards subjected to lightning-induced surges on outside plant wiring. IC Role / Device Role / Timing Role: Primary surge limiter on tip/ring lines upstream of transformer coupling and line driver ICs. Use Value: Bi-directional symmetry eliminates need for polarity-aware layout; 15.4 V clamping protects 24 V tolerant line drivers without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0CA | Same VWM (9.0 V), identical DO-214AA package, but rated for 600 W PPPM (vs. 800 W) and higher VC (16.7 V at 20 A). | Limited to lower-energy surge environments (e.g., IEC 61000-4-5 Level 2); not AEC-Q101 qualified. | Select SMBJ9.0CA only if cost sensitivity outweighs automotive qualification and higher surge margin requirements. |
| SMCJ9.0A | Uni-directional variant in larger DO-214AB (SMC) package; same VWM (9.0 V), higher PPPM (1500 W), lower VC (14.4 V at 100 A). | Requires polarity-aware layout and cannot protect AC/differential signals; better suited for DC rail clamping. | Choose SMCJ9.0A only when protecting unidirectional power rails where higher energy absorption justifies larger footprint and polarity constraint. |
Compared with SMBJ9.0CA and SMCJ9.0A, SMB8J9.0C-E3/5B uniquely combines AEC-Q101 qualification, bi-directional symmetry, and 800 W surge capacity in the compact DO-214AA footprint - making it optimal for automotive and industrial differential-signal protection where layout flexibility and reliability are critical.
Availability
SMB8J9.0C-E3/5B is available at Aetrix Electronics and suitable for automotive sensor modules, industrial RS-485 networks, and telecom DSL line cards requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMB8J9.0C-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 reliability, efficiency, and application-specific performance.
The SMB8J series belongs to Vishay's TRANSZORB® family of high-power-density TVS diodes, engineered specifically for AEC-Q101-compliant automotive and harsh-environment industrial surge protection with minimal PCB footprint.
FAQ
What is the clamping voltage of SMB8J9.0C-E3/5B at its rated peak pulse current?
The SMB8J9.0C-E3/5B exhibits a maximum clamping voltage (VC) of 15.4 V when subjected to its rated 20 A peak pulse current (IPPM) under the standard 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 protected circuitry. The SMB8J9.0C-E3/5B maintains this clamping performance across its specified operating temperature range.
Is SMB8J9.0C-E3/5B suitable for automotive applications?
Yes, SMB8J9.0C-E3/5B is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood and chassis-mounted systems. Its construction - glass-passivated junction, matte tin terminations, MSL Level 1 reflow compatibility, and 150 °C maximum junction temperature - meets stringent automotive reliability requirements. The SMB8J9.0C-E3/5B appears in Vishay's qualified list for engine control units, ADAS sensors, and infotainment interfaces.
What does the "C" in SMB8J9.0C-E3/5B signify?
The "C" in SMB8J9.0C-E3/5B denotes bi-directional polarity configuration, distinguishing it from uni-directional variants (e.g., SMB8J9.0A). This means the device clamps symmetrically for both positive and negative transients without requiring cathode/anode orientation during placement. The SMB8J9.0C-E3/5B has no color band or polarity marking, confirming its bi-directional functionality per Vishay's DO-214AA mechanical drawings and electrical tables.
How does SMB8J9.0C-E3/5B differ from SMBJ9.0CA?
SMB8J9.0C-E3/5B delivers 800 W peak pulse power (PPPM) and 15.4 V clamping voltage at 20 A, whereas SMBJ9.0CA offers only 600 W PPPM and 16.7 V VC at the same current. Crucially, SMB8J9.0C-E3/5B is AEC-Q101 qualified and carries the E3/5B tape-and-reel packaging code, while SMBJ9.0CA lacks automotive qualification. Both share DO-214AA packaging and 9.0 V stand-off voltage, but the SMB8J9.0C-E3/5B provides superior surge margin and automotive validation.
What is the maximum reverse leakage current for SMB8J9.0C-E3/5B at its stand-off voltage?
The SMB8J9.0C-E3/5B specifies a maximum reverse leakage current (ID) of 1.0 µA at its 9.0 V stand-off voltage (VWM), tested at TA = 25 °C. This ultra-low leakage preserves signal fidelity in high-impedance sensor interfaces and minimizes quiescent power loss in battery-powered systems. The value is verified in Vishay's Electrical Characteristics table (Document 88422, page 3) and remains stable across the -55 °C to 125 °C operating ambient range.
SMB8J9.0C-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:
- 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-E3/5B FAQ
1.How can I place an order for SMB8J9.0C-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB8J9.0C-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 SMB8J9.0C-E3/5B reliable?
The price and inventory of SMB8J9.0C-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 SMB8J9.0C-E3/5B is usually 5 days.
3.What payment methods are accepted for SMB8J9.0C-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB8J9.0C-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB8J9.0C-E3/5B?
SMB8J9.0C-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB8J9.0C-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 SMB8J9.0C-E3/5B?
For technical support, including SMB8J9.0C-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB8J9.0C-E3/5B requirements.
6.How does Aetrix verify that SMB8J9.0C-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMB8J9.0C-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 SMB8J9.0C-E3/5B meets industry standards.
7.What is the process for return or replacement of SMB8J9.0C-E3/5B?
All SMB8J9.0C-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMB8J9.0C-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 SMB8J9.0C-E3/5B part is unused and in its original packaging.
Return procedure for SMB8J9.0C-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB8J9.0C-E3/5B Tags
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