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Vishay General Semiconductor - Diodes Division SMB8J16CA-E3/5B
- Part No.:
- SMB8J16CA-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB8J16CA-E3/5B.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMB8J16CA-E3/5B from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for high-energy surge protection on signal and power lines. It features a 16 V standoff voltage (VWM), 26.0 V clamping voltage (VC) at 30.8 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 SMB8J16CA-E3/5B datasheet, SMB8J16CA-E3/5B pinout, SMB8J16CA-E3/5B application, or SMB8J16CA-E3/5B equivalent, this device is selected for robust ESD and lightning surge immunity in AEC-Q101-compliant systems where low clamping voltage, fast response (<1 ns), and bidirectional polarity are required without DC blocking.
Technical Context
This bidirectional 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 under repetitive transients, and its MSL Level 1 rating supports lead-free reflow up to 260 °C.
The device complies with ANSI/IEEE C62.35 for surge testing and delivers 26.0 V clamping at 30.8 A IPPM with <1.0 µA reverse leakage at 16 V VWM - critical for preserving signal integrity in 12 V–24 V automotive and industrial control buses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 16 V - maximum continuous reverse voltage before conduction; sets operating margin above 12 V nominal supply rails. |
| VBR (Breakdown Voltage) | 17.8–19.7 V at 1 mA - defined threshold where avalanche conduction begins; ensures predictable turn-on during overvoltage events. |
| VC (Clamping Voltage) | 26.0 V at 30.8 A IPPM - limits peak voltage seen by downstream ICs during 800 W surge; protects 30 V-rated components. |
| PPPM (Peak Pulse Power) | 800 W (10/1000 µs) - energy-handling capacity for standard lightning/surge waveforms per IEC 61000-4-5. |
| IPPM (Peak Pulse Current) | 30.8 A (10/1000 µs) - maximum non-repetitive surge current the device safely shunts without degradation. |
| TJ max | 150 °C - maximum junction temperature; enables operation in under-hood automotive environments. |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking; case meets UL 94 V-0; matte tin-plated leads compliant with J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional terminal pair | Either end serves as anode or cathode depending on transient polarity; no color band or marking required. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional surge suppression | Enables single-device protection of AC signals, differential buses (e.g., CAN, RS-485), and ungrounded sensor outputs without polarity concerns. |
| AEC-Q101 qualification | Validated for automotive applications including engine control units, ADAS sensors, and body electronics requiring long-term field reliability. |
| Low clamping ratio (VC/VWM = 1.625) | Minimizes voltage overshoot during surge events - critical for safeguarding 24 V-rated microcontrollers and analog front-ends. |
| MSL Level 1, 260 °C peak reflow | Supports standard lead-free SMT assembly without moisture sensitivity limitations or baking requirements. |
| Glass-passivated junction | Ensures stable VBR and low leakage over lifetime and temperature; prevents parameter drift under thermal cycling stress. |
Applications
| Automotive Sensor Protection | Industrial I/O Protection |
|---|---|
|
Use Scenario: Protecting LIN bus transceivers and pressure/temperature sensor outputs in engine compartments exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS clamps transients between signal line and ground or battery rail, preventing latch-up or gate oxide damage in connected ASICs. Use Value: With 26.0 V clamping at 30.8 A, it holds voltage below 30 V during 800 W surges - compatible with 3.3 V/5 V logic interfaces and 24 V supply domains. |
Use Scenario: Safeguarding PLC analog input channels (4–20 mA, 0–10 V) against induced surges from nearby motor switching or lightning coupling. IC Role / Device Role / Timing Role: Placed at connector entry point to divert surge energy before reaching precision op-amps and ADCs. Use Value: 1.0 µA leakage at 16 V VWM avoids loading sensitive high-impedance inputs; bidirectional symmetry eliminates need for dual unidirectional devices. |
| Telecom Line Interface | Consumer Power Adapter Input |
|
Use Scenario: Protecting Ethernet PHY magnetics and PoE injectors from EFT and surge events on twisted-pair data lines. IC Role / Device Role / Timing Role: Mounted across differential pairs (e.g., TX+/TX−) to clamp common-mode and differential transients simultaneously. Use Value: Symmetrical 17.8–19.7 V VBR ensures matched turn-on in both directions - essential for maintaining signal balance in high-speed links. |
Use Scenario: Secondary-side surge suppression on 12 V/19 V DC output rails of laptop adapters and USB-C PD chargers. IC Role / Device Role / Timing Role: Shunts overvoltage spikes caused by capacitor discharge or regulator fault conditions before reaching connected devices. Use Value: 800 W PPPM handles multiple Class III surge events per IEC 61000-4-5; RoHS-compliant E3 suffix meets global regulatory requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16CA-E3/5B | Same SMB package and 16 V VWM, but rated for 600 W PPPM (vs. 800 W) and 24.4 V VC at 24.4 A IPPM. | Lower power handling suits lower-energy environments like consumer USB ports; insufficient for full ISO 7637-2 pulse 5a compliance. | Select SMB8J16CA-E3/5B when 800 W surge immunity and AEC-Q101 qualification are mandatory. |
| SMCJ16CA-E3/57T | Larger SMC (DO-214AB) package; same 16 V VWM but 1500 W PPPM and 25.6 V VC at 58.8 A IPPM. | Higher power density needed for main power rail protection (e.g., 24 V battery input); requires larger PCB footprint. | Choose SMB8J16CA-E3/5B for space-constrained board layouts where 800 W suffices and AEC-Q101 is required. |
Compared with SMBJ16CA-E3/5B and SMCJ16CA-E3/57T, SMB8J16CA-E3/5B uniquely balances AEC-Q101 qualification, 800 W surge capability, and SMB footprint - making it optimal for automotive sensor nodes and industrial edge controllers where reliability, size, and cost must coexist.
Availability
SMB8J16CA-E3/5B is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, and telecom line interface designs requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMB8J16CA-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, efficiency, and application-specific performance.
The SMB8J series is part of 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 SMB8J16CA-E3/5B at its rated peak pulse current?
The SMB8J16CA-E3/5B has a maximum clamping voltage (VC) of 26.0 V when subjected to its rated peak pulse current (IPPM) of 30.8 A using the 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and ensures downstream circuitry remains within safe operating limits during standardized surge events. The SMB8J16CA-E3/5B achieves this while maintaining low incremental surge resistance for effective energy diversion.
Is SMB8J16CA-E3/5B suitable for automotive applications?
Yes, SMB8J16CA-E3/5B is AEC-Q101 qualified and explicitly designed for automotive use - including engine control, ADAS sensors, and body electronics. Its construction includes glass-passivated junctions, MSL Level 1 reflow compatibility, and validation across temperature cycling, HTRB, and ESD tests. The SMB8J16CA-E3/5B meets stringent automotive reliability requirements without derating in ambient temperatures up to +125 °C.
How does the bidirectional configuration of SMB8J16CA-E3/5B affect its placement on PCB?
The SMB8J16CA-E3/5B has no polarity marking and functions identically regardless of orientation, simplifying layout and eliminating risk of reverse installation. It can be placed across any two nodes requiring symmetrical overvoltage protection - such as differential signal pairs (CAN_H/CAN_L), AC-coupled lines, or ungrounded sensor outputs. This bidirectional behavior is intrinsic to its internal structure and requires no external biasing or matching components.
What is the maximum reverse leakage current of SMB8J16CA-E3/5B at its standoff voltage?
At its 16 V standoff voltage (VWM), the SMB8J16CA-E3/5B exhibits a maximum reverse leakage current (ID) of 1.0 µA at 25 °C. This ultra-low leakage preserves signal integrity in high-impedance circuits such as sensor front-ends and precision analog inputs, and remains stable across its -55 °C to +150 °C operating junction temperature range. The SMB8J16CA-E3/5B maintains this specification without degradation after repeated surge exposure.
Does SMB8J16CA-E3/5B meet RoHS and halogen-free requirements?
Yes, the SMB8J16CA-E3/5B carries the "E3" suffix, indicating full RoHS compliance per EU Directive 2011/65/EU and exemption 7a. It contains no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE. While not halogen-free (which would require "M3" suffix), the SMB8J16CA-E3/5B meets all commercial-grade environmental mandates and is approved for use in global consumer, industrial, and automotive markets.
SMB8J16CA-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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 26V
- Current - Peak Pulse (10/1000µs):
- 30.8A
- 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)
SMB8J16CA-E3/5B FAQ
1.How can I place an order for SMB8J16CA-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB8J16CA-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 SMB8J16CA-E3/5B reliable?
The price and inventory of SMB8J16CA-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 SMB8J16CA-E3/5B is usually 5 days.
3.What payment methods are accepted for SMB8J16CA-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB8J16CA-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB8J16CA-E3/5B?
SMB8J16CA-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB8J16CA-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 SMB8J16CA-E3/5B?
For technical support, including SMB8J16CA-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB8J16CA-E3/5B requirements.
6.How does Aetrix verify that SMB8J16CA-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMB8J16CA-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 SMB8J16CA-E3/5B meets industry standards.
7.What is the process for return or replacement of SMB8J16CA-E3/5B?
All SMB8J16CA-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMB8J16CA-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 SMB8J16CA-E3/5B part is unused and in its original packaging.
Return procedure for SMB8J16CA-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB8J16CA-E3/5B Tags
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