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Vishay General Semiconductor - Diodes Division SMBJ16CA-M3/5B
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- Part No.:
- SMBJ16CA-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ16CA-M3/5B.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,867
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Product details
Overview
SMBJ16CA-M3/5B from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on signal or power lines. It features a 16 V standoff voltage (VWM), 17.8–19.7 V breakdown voltage (VBR) at 1 mA, 26.0 V maximum clamping voltage (VC) at 23.1 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies.
For engineers reviewing the SMBJ16CA-M3/5B datasheet, SMBJ16CA-M3/5B pinout, SMBJ16CA-M3/5B application, or SMBJ16CA-M3/5B equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VBR ≈ 1.45), halogen-free RoHS-compliant construction (M3 suffix), and compatibility with automated SMT placement on PCBs requiring IEC 61000-4-2/4-4/4-5 level protection.
Technical Context
This device operates as a voltage-clamping protector using an avalanche junction structure, responding in <1 ps to transient overvoltages. Its bidirectional symmetry enables suppression of both positive and negative polarity surges without polarity-sensitive layout constraints.
It delivers 600 W peak pulse power under standardized 10/1000 µs waveform conditions, with thermal resistance RθJA = 100 °C/W and RθJL = 20 °C/W, enabling reliable operation up to +150 °C junction temperature when mounted on 5.0 mm × 5.0 mm copper pads per terminal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 16 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (Breakdown Voltage) | 17.8–19.7 V at 1 mA - Confirmed minimum/maximum avalanche onset range; ensures predictable clamping threshold. |
| VC (Clamping Voltage) | 26.0 V at 23.1 A - Peak voltage seen by protected circuit during 10/1000 µs surge; determines stress on downstream components. |
| PPPM (Peak Pulse Power) | 600 W - Surge energy handling capacity under standard waveform; supports robust protection against lightning-induced transients. |
| IPPM (Peak Pulse Current) | 23.1 A - Maximum non-repetitive surge current the device safely diverts without degradation. |
| TJ max. | +150 °C - Maximum junction temperature; allows use in high-ambient environments like motor drives or outdoor telecom equipment. |
| Package | SMB (DO-214AA) - Surface-mount outline with 5.59 mm × 4.06 mm footprint; optimized for automated pick-and-place and reflow soldering. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount plastic case with matte tin-plated leads, compliant with J-STD-002 and JESD 22-B102 solderability standards. No polarity marking on bidirectional variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current return path (bidirectional) | Completes low-impedance surge shunt path during either polarity event; connects to ground or common reference plane. |
| Cathode | Transient current entry point (bidirectional) | Accepts surge current from protected line regardless of polarity; connects directly to I/O or power rail under protection. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns - e.g., RS-485, CAN, or Ethernet PHY interfaces. |
| 600 W peak pulse power (10/1000 µs) | Meets IEC 61000-4-5 Level 3 (1 kV surge) requirements when properly laid out, supporting industrial-grade immunity. |
| Halogen-free & RoHS-compliant (M3 suffix) | Complies with environmental regulations for consumer, automotive, and industrial end-equipment without compromising surge performance. |
| MSL Level 1 (J-STD-020), 260 °C peak reflow | Supports standard lead-free reflow profiles without moisture sensitivity concerns - no baking required prior to assembly. |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes voltage overshoot during clamping, reducing stress on 3.3 V or 5 V logic-level ICs downstream of the TVS. |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Protection of gate drivers and microcontroller I/O pins against inductive kickback from relay coils and solenoid switching. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across relay coil or MOSFET gate-source terminals to absorb stored inductive energy. Use Value: Prevents gate oxide damage and logic upset by limiting transient voltage to ≤26.0 V during 23.1 A surges - compatible with 3.3 V/5 V MCU GPIO ratings. |
Use Scenario: ESD and load-dump protection on LIN bus lines and sensor supply rails in door modules and lighting control units. IC Role / Device Role / Timing Role: Primary transient suppressor on 12 V supply inputs and bidirectional data lines, meeting ISO 10605 and ISO 7637-2 requirements. Use Value: Halogen-free M3 construction satisfies automotive material compliance; 150 °C TJ max supports under-hood ambient temperatures. |
| Telecom Power Interfaces | Consumer IoT Sensor Hubs |
Use Scenario: Input-stage surge protection for PoE-powered remote units exposed to lightning-induced surges on Ethernet cables. IC Role / Device Role / Timing Role: First-line clamping device on DC input rail before DC/DC converter, rated for repetitive 600 W pulses. Use Value: 600 W rating and 26.0 V clamping enable compliance with IEC 61000-4-5 (10/700 µs adapted) when combined with appropriate series impedance. |
Use Scenario: ESD protection for I²C and SPI buses connecting environmental sensors (temperature, humidity) to host MCUs in smart home devices. IC Role / Device Role / Timing Role: Low-capacitance (<50 pF typical at 0 V) bidirectional clamp on differential signal pairs to preserve signal integrity. Use Value: Fast response (<1 ps) and low leakage (<1 µA at 16 V) prevent signal distortion while maintaining battery life in always-on sensing nodes. |
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 | RoHS-compliant but not halogen-free; same electrical specs and SMB package. | Preferred for commercial-grade applications where halogen content is unrestricted. | Select when cost optimization is prioritized and halogen-free certification is not required. |
| SAC16-03 | Same VWM (16 V) and VC (26 V), but in smaller SOD-123FL package (lower IPPM = 17.5 A, PPPM = 400 W). | Suitable only for lower-energy transients (e.g., IEC 61000-4-2 ESD), not full IEC 61000-4-5 surges. | Choose for space-constrained designs accepting reduced surge margin; verify layout derating for target threat level. |
Compared with SMBJ16CA-E3/5B, the SMBJ16CA-M3/5B adds halogen-free compliance without sacrificing performance; versus SAC16-03, it provides 50 % higher surge power handling and proven robustness in industrial-grade layouts - critical for sustained reliability in harsh environments.
Availability
SMBJ16CA-M3/5B is available at Aetrix Electronics and suitable for industrial motor drives, automotive body electronics, telecom power interfaces, and consumer IoT sensor hubs requiring stable component supply and long-term manufacturability.
Supply support for SMBJ16CA-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 diodes, rectifiers, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMBJ series was developed for high-power, surface-mount transient suppression in demanding environments - targeting industrial automation, automotive subsystems, and infrastructure equipment where failure resilience is critical.
FAQ
What is the clamping voltage of SMBJ16CA-M3/5B at its rated peak pulse current?
The SMBJ16CA-M3/5B has a maximum clamping voltage (VC) of 26.0 V at 23.1 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuits during surge events - essential for ensuring compatibility with 3.3 V or 5 V logic interfaces downstream of the SMBJ16CA-M3/5B.
Is SMBJ16CA-M3/5B suitable for automotive applications?
The SMBJ16CA-M3/5B itself is commercial-grade (M3 suffix), not AEC-Q101 qualified. However, Vishay offers the functionally identical SMBJ16CA-HM3_B/I variant with AEC-Q101 qualification. For automotive body control modules or infotainment systems requiring certified components, the HM3 version must be selected - the SMBJ16CA-M3/5B remains appropriate for non-safety-critical consumer or industrial applications where qualification is not mandated.
How does the bidirectional design of SMBJ16CA-M3/5B affect PCB layout?
The SMBJ16CA-M3/5B has no polarity marking and symmetrical electrical behavior in both directions, eliminating orientation constraints during placement. This simplifies layout for AC-coupled lines (e.g., RS-485, CAN, audio) and reduces risk of assembly errors. Unlike unidirectional TVS diodes, the SMBJ16CA-M3/5B requires no cathode band alignment - mounting follows standard SMB pad geometry without directional verification.
What is the thermal resistance of SMBJ16CA-M3/5B, and how does it impact power dissipation?
The SMBJ16CA-M3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead (RθJL) of 20 °C/W when mounted on 5.0 mm × 5.0 mm copper pads. These values define steady-state power limits: at 25 °C ambient, its 5.0 W continuous power rating (PD) yields a 500 °C theoretical rise - underscoring that SMBJ16CA-M3/5B is intended for transient, not continuous, dissipation. Layout must prioritize low-inductance grounding to sustain 600 W pulse capability.
Does SMBJ16CA-M3/5B meet UL recognition requirements?
Yes - the SMBJ16CA-M3/5B carries Underwriters Laboratories recognition under UL 497B (QVGQ2 file E136766) for both unidirectional and bidirectional transient protectors. This certification validates its safety performance in telecom and industrial installations, including flammability compliance (UL 94 V-0 molding compound) and surge withstand capability - confirming suitability for UL-listed end equipment incorporating the SMBJ16CA-M3/5B.
SMBJ16CA-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):
- 23.1A
- Power - Peak Pulse:
- 600W
- 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)
SMBJ16CA-M3/5B FAQ
1.How can I place an order for SMBJ16CA-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ16CA-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 SMBJ16CA-M3/5B reliable?
The price and inventory of SMBJ16CA-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 SMBJ16CA-M3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ16CA-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ16CA-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ16CA-M3/5B?
SMBJ16CA-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ16CA-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 SMBJ16CA-M3/5B?
For technical support, including SMBJ16CA-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ16CA-M3/5B requirements.
6.How does Aetrix verify that SMBJ16CA-M3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ16CA-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 SMBJ16CA-M3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ16CA-M3/5B?
All SMBJ16CA-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ16CA-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 SMBJ16CA-M3/5B part is unused and in its original packaging.
Return procedure for SMBJ16CA-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ16CA-M3/5B Tags
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