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Vishay General Semiconductor - Diodes Division SMB8J16CA-M3/5B
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- Part No.:
- SMB8J16CA-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB8J16CA-M3/5B.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,468
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Product details
Overview
SMB8J16CA-M3/5B 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 stand-off voltage (VWM), 26.0 V maximum 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-M3/5B datasheet, SMB8J16CA-M3/5B pinout, SMB8J16CA-M3/5B application, or SMB8J16CA-M3/5B equivalent, this device is evaluated for ESD/surge immunity in AEC-Q101-compliant automotive subsystems, low-leakage (<1.0 µA at VWM) DC bias networks, and space-constrained PCB layouts requiring MSL Level 1 reflow compatibility.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, enabling suppression of positive and negative transients without polarity sensitivity. Its glass-passivated junction delivers fast response time (<1 ns) and low incremental surge resistance, critical for protecting downstream MOSFET gates and analog front-ends from inductive switching spikes.
The device is rated for -55 °C to +150 °C operating junction temperature and meets AEC-Q101 stress test requirements for automotive use. Thermal resistance is characterized at RθJA = 72 °C/W (on 0.2" × 0.2" copper pads), supporting thermal design validation in compact motor control and ADAS sensor modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous reverse working voltage before clamping initiates; defines safe DC bias margin for 12 V automotive rails. |
| VBR (min/max) | 17.8 V / 19.7 V at 1.0 mA - Breakdown threshold range ensures reliable turn-on during overvoltage events while avoiding false triggering. |
| VC @ IPPM | 26.0 V at 30.8 A - Clamping voltage under full 10/1000 µs surge; limits voltage seen by protected IC to ≤26 V during 800 W transient. |
| ID @ VWM | ≤1.0 µA - Ultra-low leakage preserves signal integrity and battery life in always-on sensor circuits. |
| PPPM | 800 W - Peak pulse power handling per 10/1000 µs waveform; supports ISO 7637-2 Pulse 1/2/5a surge immunity compliance. |
| TJ max. | +150 °C - Enables operation in under-hood automotive environments and industrial enclosures without derating. |
| Package | SMB (DO-214AA) - Surface-mount footprint (4.57 mm × 3.94 mm) compatible with automated placement and IPC-7351B land patterns. |
Pinout & Package
Two-terminal bidirectional device in SMB (DO-214AA) package; no polarity marking on body. Terminals are matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102, with MSL Level 1 rating (peak reflow 260 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals function identically; bidirectional clamping occurs regardless of voltage polarity applied. |
| Cathode Band (absent) | Polarity indicator | No marking - confirms bidirectional configuration; eliminates risk of incorrect orientation during assembly. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS sensors per stress test requirements. |
| Halogen-free & RoHS-compliant (M3 suffix) | Meets EU Directive 2011/65/EU and JESD201 Class 2 whisker resistance; suitable for green manufacturing programs. |
| Low clamping ratio (VC/VBR ≈ 1.46) | Minimizes overvoltage overshoot during surge events, reducing stress on downstream 3.3 V or 5 V logic interfaces. |
| MSL Level 1 moisture sensitivity | Enables standard SMT reflow without baking; reduces production line complexity and cost in high-volume automotive assembly. |
| Glass-passivated junction | Ensures stable breakdown characteristics over temperature and lifetime, critical for long-term reliability in harsh environments. |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
|
Use Scenario: Protecting LIN bus transceivers and Hall-effect position sensors from load dump and inductive kickback in 12 V vehicle systems. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector entry point to shunt transients before reaching ASIC input pins. Use Value: Maintains <1.0 µA leakage at 16 V VWM to avoid disturbing low-power sensor bias networks while clamping to 26.0 V during 800 W surges. |
Use Scenario: Safeguarding PLC digital input channels against field-wiring induced surges in factory automation cabinets. IC Role / Device Role / Timing Role: Primary surge suppression element on 24 V DC input lines, coordinated with upstream fuse and downstream optocoupler isolation. Use Value: Delivers 30.8 A IPPM capability with 26.0 V VC to ensure connected microcontrollers remain within absolute maximum ratings during ISO 16750-2 transient events. |
| Consumer USB Port Protection | Telecom Line Interface |
|
Use Scenario: ESD and surge protection for USB 2.0 data lines (D+/D−) in portable medical devices and smart home hubs. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS placed adjacent to USB connector to suppress ±15 kV contact ESD per IEC 61000-4-2. Use Value: Achieves sub-1 µA leakage at 16 V VWM to prevent signal degradation on high-speed differential pairs while maintaining fast <1 ns response. |
Use Scenario: Overvoltage protection on RS-485/RS-422 differential bus lines in base station remote radio units and network switches. IC Role / Device Role / Timing Role: Common-mode transient suppressor bridging A/B lines to ground, complementing internal receiver ESD structures. Use Value: Withstands repeated 800 W surges per 10/1000 µs waveform without parameter shift, ensuring multi-year field reliability in outdoor telecom deployments. |
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-M3/5B | Unidirectional variant with same VWM (16 V) but higher PPPM (1000 W); cathode band marking required. | Requires polarity-aware layout; unsuitable for AC-coupled or floating differential lines. | Select when protecting unidirectional DC rails where higher surge margin justifies added layout constraint. |
| SMAJ16CA-M3/5B | Same electrical specs but in smaller SMA (DO-214AC) package; lower thermal mass and RθJA = 90 °C/W. | Limited to lower average power dissipation; not recommended for repetitive surge environments. | Choose only for space-constrained consumer designs with infrequent transient exposure and verified thermal margin. |
Compared with SMB8J16CA-M3/5B, SMBJ16CA-M3/5B offers higher surge power but demands strict polarity alignment, while SMAJ16CA-M3/5B sacrifices thermal robustness for footprint reduction - making SMB8J16CA-M3/5B the optimal balance for automotive and industrial bidirectional protection.
Availability
SMB8J16CA-M3/5B is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, and telecom line interface boards requiring stable component supply with AEC-Q101 qualification and halogen-free compliance.
Supply support for SMB8J16CA-M3/5B 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 high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The SMB8J series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for robust, bidirectional surge immunity in AEC-Q101-qualified automotive subsystems and harsh-environment industrial controls.
FAQ
What is the clamping voltage of SMB8J16CA-M3/5B at its rated peak pulse current?
The SMB8J16CA-M3/5B has a maximum clamping voltage (VC) of 26.0 V at its specified peak pulse current (IPPM) of 30.8 A, measured using the standard 10/1000 µs double-exponential waveform. This value ensures protected circuitry remains within safe operating limits during surge events, and is confirmed in Vishay's Document Number 88422, page 3 (Bidirectional Electrical Characteristics table).
Is SMB8J16CA-M3/5B suitable for automotive applications?
Yes, SMB8J16CA-M3/5B is AEC-Q101 qualified and carries the HM3 suffix indicating halogen-free, RoHS-compliant, and automotive-grade construction. It is explicitly listed in Vishay's qualified parts list for use in engine control units, body electronics, and ADAS sensor modules - with validated performance across -55 °C to +150 °C junction temperature range.
Does SMB8J16CA-M3/5B have polarity markings on the package?
No, SMB8J16CA-M3/5B has no color band or other polarity marking because it is a bidirectional TVS diode. The SMB (DO-214AA) package contains two symmetrical terminals, and the device clamps equally for positive and negative transients - eliminating orientation dependency during PCB assembly and reducing manufacturing error risk.
What is the maximum reverse leakage current for SMB8J16CA-M3/5B at its stand-off voltage?
The SMB8J16CA-M3/5B exhibits a maximum reverse leakage current (ID) of 1.0 µA when biased at its 16 V stand-off voltage (VWM), as specified in the Bidirectional Electrical Characteristics table (Document Number 88422, page 3). This ultra-low leakage preserves signal integrity in high-impedance sensor bias networks and extends battery life in always-on automotive modules.
What packaging format does SMB8J16CA-M3/5B ship in?
SMB8J16CA-M3/5B ships in 13-inch diameter plastic tape and reel format with a base quantity of 3200 units per reel (ordering code suffix /5B). The tape conforms to EIA-481 standards, and the device is moisture-sensitive level 1 - permitting standard SMT reflow without pre-baking per J-STD-020.
SMB8J16CA-M3/5B 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 (SMBJ)
SMB8J16CA-M3/5B FAQ
1.How can I place an order for SMB8J16CA-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB8J16CA-M3/5B 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-M3/5B reliable?
The price and inventory of SMB8J16CA-M3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB8J16CA-M3/5B is usually 5 days.
3.What payment methods are accepted for SMB8J16CA-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB8J16CA-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB8J16CA-M3/5B?
SMB8J16CA-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB8J16CA-M3/5B 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-M3/5B?
For technical support, including SMB8J16CA-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB8J16CA-M3/5B requirements.
6.How does Aetrix verify that SMB8J16CA-M3/5B is sourced from the original manufacturer or authorized distributors?
All SMB8J16CA-M3/5B 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-M3/5B meets industry standards.
7.What is the process for return or replacement of SMB8J16CA-M3/5B?
All SMB8J16CA-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMB8J16CA-M3/5B, 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-M3/5B part is unused and in its original packaging.
Return procedure for SMB8J16CA-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB8J16CA-M3/5B Tags
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Diodes Incorporated
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Diodes Incorporated
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