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Vishay General Semiconductor - Diodes Division SMBJ16CA-M3/52
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- Part No.:
- SMBJ16CA-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ16CA-M3/52.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,319
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Product details
Overview
SMBJ16CA-M3/52 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), 26.0 V maximum clamping voltage (VC) at 23.1 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 µs waveform), protecting MOSFETs and sensor interfaces in industrial control systems.
For engineers reviewing the SMBJ16CA-M3/52 datasheet, SMBJ16CA-M3/52 pinout, SMBJ16CA-M3/52 application, or SMBJ16CA-M3/52 equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VWM = 1.625), MSL Level 1 moisture sensitivity, halogen-free RoHS compliance (M3 suffix), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This device operates as a voltage-clamping protector using an avalanche breakdown mechanism, with symmetrical bidirectional conduction enabling protection of AC-coupled or differential signal paths without polarity concerns. Its 10/1000 µs surge rating and 0.01% duty cycle support repetitive transient suppression in motor drive feedback loops and telecom line interfaces.
The SMBJ16CA-M3/52 exhibits a temperature coefficient of VBR of +0.089 %/°C and a typical junction-to-lead thermal resistance (RθJL) of 20 °C/W, ensuring stable clamping performance under sustained surge conditions when mounted per recommended pad layout. It meets UL 497B recognition (QVGQ2) and JESD201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 16 V - Maximum continuous reverse voltage before clamping begins; defines operating margin below breakdown. |
| VBR (Breakdown Voltage) | 17.8–19.7 V at IT = 1 mA - Confirmed minimum/maximum avalanche initiation range for bidirectional operation. |
| VC (Clamping Voltage) | 26.0 V at IPPM = 23.1 A (10/1000 µs) - Peak voltage seen by protected circuit during worst-case surge. |
| PPPM (Peak Pulse Power) | 600 W - Sustained transient energy absorption capacity under standardized surge waveform. |
| IPPM (Peak Pulse Current) | 23.1 A - Maximum non-repetitive surge current the device safely clamps without failure. |
| TJmax | +150 °C - Maximum junction temperature defining safe derating envelope above 25 °C ambient. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height. |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads solderable per J-STD-002 and JESD22-B102; no polarity marking for bidirectional types.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional terminal pair | No functional polarity - either terminal serves as anode or cathode depending on transient polarity; connected across protected line and return. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables robust protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 24 V industrial buses. |
| 26.0 V clamping at 23.1 A | Clamping ratio of 1.625 ensures protected ICs (e.g., RS-485 transceivers rated to 36 V) remain within absolute maximum ratings. |
| MSL Level 1 (260 °C peak reflow) | Supports single-pass lead-free reflow without preconditioning, reducing manufacturing complexity. |
| Halogen-free, RoHS-compliant (M3 suffix) | Fulfills environmental compliance requirements for export to EU, Japan, and China without material declaration overhead. |
| UL 497B recognized (QVGQ2) | Validates suitability for telecom and data line protection without additional system-level safety certification effort. |
Applications
| Industrial Motor Control | Automotive Sensor Interface |
|---|---|
|
Use Scenario: Protection of encoder feedback lines and Hall-effect sensor outputs against inductive kickback from 24 V DC motor drivers. IC Role / Device Role: Bidirectional clamping element placed across differential signal pairs (A/B) and ground. Use Value: Limits transient excursions to ≤26.0 V, preventing latch-up or gate oxide damage in microcontroller GPIOs and analog front-ends. |
Use Scenario: ESD and load-dump suppression on LIN bus transceivers and pressure sensor supply lines in engine compartments. IC Role / Device Role: Primary TVS on 12 V supply rail and bidirectional data line, compliant with ISO 16750-2 pulse 5a. Use Value: Withstands 100 A surge (IFSM not applicable; bidirectional), maintaining <1 µA leakage at 16 V for low-power sensor sleep modes. |
| Telecom Data Line | Consumer Power Adapter |
|
Use Scenario: Surge protection on Ethernet PHY magnetics center taps and PoE injector outputs subject to lightning-induced surges. IC Role / Device Role: Secondary-level clamp after gas discharge tube (GDT), handling residual energy in 10/1000 µs tail. Use Value: 600 W rating absorbs >90% of residual surge energy after GDT crowbarring, reducing thermal stress on downstream components. |
Use Scenario: Input-stage transient suppression on 19 V laptop adapter secondary-side rectifier outputs. IC Role / Device Role: Bidirectional clamp across output capacitor terminals to suppress ringing and hot-swap spikes. Use Value: 16 V VWM allows stable regulation while clamping 26.0 V peaks - avoids false triggering of OVP circuits set at 20.5 V. |
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-E3/52 | Same electrical specs; RoHS-compliant but contains brominated flame retardants (non-halogen-free). | Acceptable for commercial-grade products where halogen-free requirement is not mandated. | Select when cost sensitivity outweighs halogen-free compliance; identical footprint and assembly process. |
| SMCJ16CA-M3 | Higher 1500 W PPPM, larger SMC (DO-214AB) package (7.11 mm × 6.22 mm), same VWM/VC. | Used where higher surge margin is required (e.g., outdoor power supplies), but requires PCB layout change. | Choose when system-level surge testing exceeds 600 W; not drop-in due to larger footprint and thermal mass. |
Compared with SMBJ16CA-M3/52, the E3 variant trades halogen-free status for lower cost without electrical compromise, while the SMCJ16CA-M3 delivers 2.5× surge capacity at the expense of board space and thermal response time - critical for compact, high-density designs where 600 W suffices.
Availability
SMBJ16CA-M3/52 is available at Aetrix Electronics and suitable for industrial motor control, automotive sensor interface, telecom data line, and consumer power adapter applications requiring stable component supply, halogen-free compliance, and MSL Level 1 reflow readiness.
Supply support for SMBJ16CA-M3/52 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 and application-specific optimization.
The SMBJ series is engineered for high-reliability transient suppression in harsh environments - targeting industrial automation, automotive subsystems, and infrastructure equipment where consistent clamping performance and long-term stability are mandatory.
FAQ
What is the clamping voltage of SMBJ16CA-M3/52 at its rated peak pulse current?
The SMBJ16CA-M3/52 has a maximum clamping voltage (VC) of 26.0 V when subjected to its rated peak pulse current (IPPM) of 23.1 A under the standard 10/1000 µs waveform. This value is measured per Figure 1 in Vishay document 88392 and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBJ16CA-M3/52 maintains this clamping performance across its full operating temperature range (-55 °C to +150 °C) with minimal drift.
Is SMBJ16CA-M3/52 suitable for automotive applications?
The SMBJ16CA-M3/52 itself is commercial-grade and not AEC-Q101 qualified; however, it shares identical electrical characteristics with the AEC-Q101-qualified variants SMBJ16CAHE3 and SMBJ16CAHM3 (suffixes HE3/HM3). For non-safety-critical automotive subsystems like body electronics or infotainment power rails, SMBJ16CA-M3/52 may be used pending internal qualification - but the SMBJ16CA-M3/52 datasheet does not list automotive stress test results or failure-in-time (FIT) data.
How does the bidirectional design of SMBJ16CA-M3/52 affect its circuit placement?
The SMBJ16CA-M3/52 has no polarity marking and functions identically in both directions, allowing placement across any two nodes requiring symmetrical overvoltage protection - such as differential signal lines (RS-485, CAN), AC power inputs, or transformer windings. Unlike unidirectional TVS diodes, the SMBJ16CA-M3/52 eliminates orientation errors during automated assembly and supports AC-coupled topologies without external biasing. Its symmetric VBR ensures matched clamping in positive and negative transients.
What is the thermal resistance of SMBJ16CA-M3/52, and how does it impact power dissipation?
The SMBJ16CA-M3/52 has a typical junction-to-lead thermal resistance (RθJL) of 20 °C/W and a junction-to-ambient value (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" copper pads. This means that under continuous 5.0 W power dissipation (PD), the junction temperature rise above ambient would be 500 °C - far exceeding its 150 °C maximum. Hence, the SMBJ16CA-M3/52 is rated for transient, not steady-state, power; its 5.0 W rating applies only with significant duty-cycle derating per Figure 2 in the datasheet.
Does SMBJ16CA-M3/52 meet UL safety certification, and what does that cover?
Yes, the SMBJ16CA-M3/52 is Underwriters Laboratories (UL) recognized under file E136766 and standard UL 497B for protectors (QVGQ2), covering both unidirectional and bidirectional devices. This certification validates its construction, flammability (UL 94 V-0 molding compound), and surge withstand capability for use in telecommunications and data line protection. The SMBJ16CA-M3/52 certification applies specifically to its SMB package configuration and does not extend to modified assemblies or alternate mounting methods.
SMBJ16CA-M3/52 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-M3/52 FAQ
1.How can I place an order for SMBJ16CA-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ16CA-M3/52 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-M3/52 reliable?
The price and inventory of SMBJ16CA-M3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ16CA-M3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ16CA-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ16CA-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ16CA-M3/52?
SMBJ16CA-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ16CA-M3/52 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-M3/52?
For technical support, including SMBJ16CA-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ16CA-M3/52 requirements.
6.How does Aetrix verify that SMBJ16CA-M3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ16CA-M3/52 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-M3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ16CA-M3/52?
All SMBJ16CA-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ16CA-M3/52, 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-M3/52 part is unused and in its original packaging.
Return procedure for SMBJ16CA-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ16CA-M3/52 Tags
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