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Vishay General Semiconductor - Diodes Division SMB8J11C-E3/5B
- Part No.:
- SMB8J11C-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB8J11C-E3/5B.pdf
- Description:
- TVS DIODE 11VWM 20.1VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,433
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Product details
Overview
SMB8J11C-E3/5B 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 11 V stand-off voltage (VWM), 18.2 V maximum clamping voltage (VC) at 44.0 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 SMB8J11C-E3/5B datasheet, SMB8J11C-E3/5B pinout, SMB8J11C-E3/5B application, or SMB8J11C-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 5.0 mm × 5.0 mm copper pads.
Technical Context
This bi-directional TVS diode uses a glass-passivated silicon junction to achieve fast response time (<1 ns) and low incremental surge resistance, enabling effective suppression of ESD, lightning-induced transients, and inductive switching spikes. Its symmetrical breakdown behavior (VBR min/max = 12.2 V / 13.5 V at 1 mA) ensures balanced protection across both polarities without polarity-sensitive layout constraints.
Thermally, it supports operation from –55 °C to +150 °C with typical junction-to-lead thermal resistance (RθJL) of 20 °C/W, and is rated for MSL Level 1 per J-STD-020 at 260 °C peak reflow. The device meets AEC-Q101 stress test requirements and is qualified for automotive-grade reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 11 V - maximum continuous reverse operating voltage before clamping begins; defines safe working range for protected circuitry. |
| VBR (min/max) | 12.2 V / 13.5 V at 1 mA - guaranteed breakdown onset window; ensures predictable turn-on under bidirectional surge conditions. |
| VC @ IPPM | 18.2 V at 44.0 A - clamping voltage during 10/1000 μs surge; limits downstream voltage stress to safe levels for 3.3 V or 5 V ICs. |
| PPPM | 800 W - peak pulse power handling with 10/1000 μs waveform; supports robust protection against IEC 61000-4-5 Level 4 surges. |
| ID @ VWM | 5.0 μA - reverse leakage at stand-off voltage; negligible power loss and signal integrity impact in high-impedance lines. |
| TJ max. | 150 °C - maximum junction temperature; enables reliable operation in under-hood automotive or enclosed industrial environments. |
| Package | DO-214AA (SMB) - industry-standard surface-mount outline with 0.220" x 0.155" footprint; compatible with standard SMT pick-and-place and reflow profiles. |
Pinout & Package
DO-214AA (SMB) package: molded plastic case with two coplanar leads; no polarity marking for bi-directional types - symmetric terminal configuration allows orientation-agnostic PCB placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional surge conduction path | Both terminals function identically; no cathode band marking required - simplifies layout and eliminates polarity error risk. |
| Case (plastic body) | Isolation barrier | UL 94 V-0 rated molding compound provides flame resistance and electrical isolation up to 150 °C ambient. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, ADAS sensors, and infotainment power rails - meets stress testing for temperature cycling, HTRB, and ESD. |
| Glass passivated junction | Enhances long-term stability and moisture resistance versus epoxy-passivated alternatives - critical for field-reliability in humid or thermally cycled environments. |
| MSL Level 1 rating | Unlimited floor life at ≤30 °C / 60% RH; supports standard SMT assembly without dry-pack or baking - reduces manufacturing overhead. |
| Matte tin plated leads | Solderable per J-STD-002 and JESD 22-B102; JESD 201 Class 1A whisker resistance ensures interconnect integrity in vibration-prone systems. |
| Low profile (0.085" max height) | Enables use in space-constrained modules such as automotive camera housings or compact industrial PLC I/O cards. |
Applications
| Automotive Sensor Protection | Industrial Digital I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (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 surge energy before reaching interface IC. Use Value: Limits induced transients to ≤18.2 V, safeguarding 5 V tolerant transceivers and preserving signal integrity during 100 V/50 ms load dump events. |
Use Scenario: Shielding programmable logic controller (PLC) digital input channels from field-wiring induced surges and ground bounce. IC Role / Device Role / Timing Role: Primary overvoltage protection element on 24 V DC input lines, mounted adjacent to optocoupler or Schmitt trigger input stage. Use Value: Absorbs 800 W surges without degradation, maintaining <5 μA leakage to prevent false triggering in high-impedance sensing circuits. |
| Telecom Line Interface | Consumer Power Adapter ESD Protection |
Use Scenario: Guarding Ethernet PHY front-end and PoE detection circuitry against lightning-induced common-mode transients on RJ45 ports. IC Role / Device Role / Timing Role: Secondary-level TVS paired with common-mode chokes to clamp differential and common-mode surges independently. Use Value: Symmetric clamping ensures equal protection on both line pairs; 18.2 V VC prevents latch-up in 3.3 V PHYs during IEC 61000-4-5 4 kV tests. |
Use Scenario: Safeguarding USB-C and barrel jack input stages in wall adapters against user-handling ESD and AC line transients. IC Role / Device Role / Timing Role: First-line transient suppressor between input rectifier and primary-side controller IC. Use Value: Withstands >15,000 cycles of ±8 kV contact ESD (IEC 61000-4-2) while maintaining 11 V stand-off for stable 12 V adapter regulation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11CA | Same VWM (11 V), identical DO-214AA package, but rated for 1000 W PPPM (uni-directional only); bi-directional variant not offered. | Requires polarity-aware layout; unsuitable for AC-coupled or floating signal lines where bidirectional clamping is mandatory. | Select SMBJ11CA only when protecting unidirectional DC rails with higher surge margin needs and fixed polarity. |
| 1.5KE11CA | Higher PPPM (1500 W), axial lead DO-201 package; larger footprint and through-hole mounting; VWM = 11 V, VC = 18.2 V. | Not suitable for high-density SMT designs; incompatible with automated placement; limited to prototyping or low-volume legacy boards. | Choose 1.5KE11CA only for manual assembly or retrofit scenarios where board real estate and reflow compatibility are secondary concerns. |
Compared with SMBJ11CA and 1.5KE11CA, SMB8J11C-E3/5B uniquely delivers AEC-Q101 qualification, bi-directional symmetry, and SMT-ready DO-214AA packaging - making it the optimal choice for automotive and industrial SMT production requiring zero-polarity-layout assurance and automotive-grade reliability.
Availability
SMB8J11C-E3/5B is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer power adapter designs requiring stable component supply and full traceability.
Supply support for SMB8J11C-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, power efficiency, and automotive-grade qualification.
The SMB8J series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-power-density, AEC-Q101-compliant transient suppression in harsh-environment automotive and industrial control systems.
FAQ
What is the polarity configuration of SMB8J11C-E3/5B?
SMB8J11C-E3/5B is a bi-directional TVS diode with symmetrical anode/cathode terminals and no polarity marking on the DO-214AA package. This allows orientation-agnostic PCB placement and ensures identical clamping performance for positive and negative transients - a key requirement for AC-coupled signal lines and floating bus interfaces where polarity cannot be assumed.
Does SMB8J11C-E3/5B meet automotive qualification standards?
Yes, SMB8J11C-E3/5B is AEC-Q101 qualified, having passed stress tests including high-temperature reverse bias (HTRB), temperature cycling, and ESD per JESD22-A114. Its qualification confirms suitability for automotive applications such as engine control units, ADAS sensor modules, and infotainment power supplies where long-term reliability under thermal and mechanical stress is mandatory.
What is the maximum clamping voltage of SMB8J11C-E3/5B under surge conditions?
The maximum clamping voltage (VC) of SMB8J11C-E3/5B is 18.2 V at 44.0 A peak pulse current (IPPM) with a 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees that downstream circuitry - including 3.3 V or 5 V microcontrollers and transceivers - remains within safe operating voltage limits during standardized surge events.
Can SMB8J11C-E3/5B be used in automated SMT assembly?
Yes, SMB8J11C-E3/5B is optimized for automated surface-mount assembly: it features matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, MSL Level 1 rating (unlimited floor life), and a low-profile DO-214AA package compatible with standard 7" and 13" tape-and-reel feeders - all confirmed in Vishay's official documentation for SMB8J11C-E3/5B.
How does SMB8J11C-E3/5B differ from uni-directional SMBJ11A variants?
SMB8J11C-E3/5B differs from uni-directional SMBJ11A by offering symmetrical bi-directional clamping (no cathode band), lower peak pulse power rating (800 W vs. 1000 W), and AEC-Q101 qualification as standard. While SMBJ11A requires polarity-aware layout and protects only DC rails, SMB8J11C-E3/5B supports AC signals, floating buses, and automotive applications demanding bidirectional surge immunity without layout constraints.
SMB8J11C-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):
- 11V
- Voltage - Breakdown (Min):
- 12.2V
- Voltage - Clamping (Max) @ Ipp:
- 20.1V
- Current - Peak Pulse (10/1000µs):
- 39.8A
- 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)
SMB8J11C-E3/5B FAQ
1.How can I place an order for SMB8J11C-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB8J11C-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 SMB8J11C-E3/5B reliable?
The price and inventory of SMB8J11C-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 SMB8J11C-E3/5B is usually 5 days.
3.What payment methods are accepted for SMB8J11C-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB8J11C-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB8J11C-E3/5B?
SMB8J11C-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB8J11C-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 SMB8J11C-E3/5B?
For technical support, including SMB8J11C-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB8J11C-E3/5B requirements.
6.How does Aetrix verify that SMB8J11C-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMB8J11C-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 SMB8J11C-E3/5B meets industry standards.
7.What is the process for return or replacement of SMB8J11C-E3/5B?
All SMB8J11C-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMB8J11C-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 SMB8J11C-E3/5B part is unused and in its original packaging.
Return procedure for SMB8J11C-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB8J11C-E3/5B Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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