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Vishay General Semiconductor - Diodes Division SMBJ16CA-E3/52
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- Part No.:
- SMBJ16CA-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ16CA-E3/52.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:66,337
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Product details
Overview
SMBJ16CA-E3/52 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 and power lines. It features a 16 V stand-off 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 signal lines in industrial and telecom equipment.
For engineers reviewing the SMBJ16CA-E3/52 datasheet, SMBJ16CA-E3/52 pinout, SMBJ16CA-E3/52 application, or SMBJ16CA-E3/52 equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VWM = 1.625), JEDEC-compliant SMB package footprint, and AEC-Q101 qualification readiness via HE3 suffix variants.
Technical Context
This TVS diode operates symmetrically in both directions, enabling protection of AC-coupled or differential signal paths without polarity constraints. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 µA at VWM), while the 20 °C/W junction-to-lead thermal resistance supports reliable surge dissipation under repetitive transient conditions.
The device complies with ANSI/IEEE C62.35 for transient suppressor definitions and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. Its 150 °C maximum junction temperature and -55 °C to +150 °C operating range support deployment in harsh industrial and automotive-adjacent environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 16 V - Maximum continuous reverse voltage before significant leakage; defines safe operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 17.8–19.7 V at 1 mA - Confirmed breakdown onset range; ensures predictable turn-on during overvoltage events. |
| VC (Clamping Voltage) | 26.0 V at 23.1 A (10/1000 µs) - Limits downstream voltage stress; clamping ratio of 1.625 enables robust IC-level protection. |
| PPPM (Peak Pulse Power) | 600 W - Sustains high-energy transients (e.g., IEC 61000-4-5 surge) without failure when mounted per recommended pad layout. |
| IPPM (Peak Pulse Current) | 23.1 A - Withstands defined 10/1000 µs surge waveform; derates linearly above 25 °C ambient per Fig. 2. |
| Junction Temp Range | -55 °C to +150 °C - Supports operation in extended-temperature industrial control and outdoor telecom enclosures. |
| Package | SMB (DO-214AA) - Standardized 2-pin surface-mount outline; compatible with automated pick-and-place and reflow processes. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); matte tin-plated leads, solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (in one polarity) | Accepts surge current during positive half-cycle; forms symmetrical conduction path with cathode. |
| Cathode | Transient current entry (in opposite polarity) | Accepts surge current during negative half-cycle; enables bidirectional clamping without external circuitry. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, differential buses (e.g., RS-485), or ungrounded power rails without polarity concerns. |
| 600 W peak pulse power | Handles IEC 61000-4-5 Level 4 surges (4 kV line-earth) when properly mounted on 5.0 mm × 5.0 mm copper pads per Fig. 1. |
| Low clamping voltage (26.0 V) | Keeps protected ICs (e.g., 3.3 V or 5 V logic) within absolute maximum ratings during 23.1 A transient events. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow profile (peak 260 °C) without baking preconditioning. |
| AEC-Q101 qualification option | HE3/HM3 suffix variants available for automotive subsystems requiring qualified TVS components (e.g., body control modules). |
Applications
| Industrial Motor Drives | Telecom Line Interface |
|---|---|
|
Use Scenario: Protection of gate drivers and current-sense amplifiers against inductive kickback from 24 V DC solenoids and relay coils. IC Role / Device Role / Timing Role: Bidirectional TVS placed across power rail inputs and signal returns to clamp ±100 V transients within 1 ns. Use Value: Prevents latch-up or oxide damage in 3.3 V microcontrollers and isolated gate drivers by limiting voltage to ≤26.0 V during 23.1 A surges. |
Use Scenario: Surge suppression on RJ-45 Ethernet PHY interface lines exposed to lightning-induced surges in outdoor base stations. IC Role / Device Role / Timing Role: Placed differentially across TX+/TX− and RX+/RX− pairs to absorb common-mode and differential-mode transients per IEC 61000-4-5. Use Value: Maintains signal integrity by clamping transients before they reach magnetics or PHY ICs, with <1.0 µA leakage preserving DC bias stability. |
| Automotive Body Control Module | Consumer Sensor Hub |
|
Use Scenario: Input protection for LIN bus transceivers and window lift motor controllers subjected to load dump and jump-start transients. IC Role / Device Role / Timing Role: Mounted at connector entry points to shunt energy from ISO 7637-2 Pulse 1/2a/5a events before reaching MCU I/O pins. Use Value: Enables use of AEC-Q101-qualified HE3 variant (SMBJ16CAHE3) with validated reliability for 15-year vehicle service life. |
Use Scenario: ESD and EFT protection for I²C lines connecting environmental sensors (temperature/humidity) to host SoCs in smart home hubs. IC Role / Device Role / Timing Role: Low-capacitance TVS (typ. 100 pF at 0 V) placed directly at sensor connector to minimize stub length and preserve 400 kHz timing margins. Use Value: Provides ±15 kV contact / ±20 kV air ESD immunity per IEC 61000-4-2 while adding <0.5 ns propagation delay to signal path. |
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-M3/52 | Halogen-free, RoHS-compliant variant with identical electrical specs and SMB package; same thermal resistance and clamping performance. | No difference in circuit function or PCB layout; selected where halogen-free compliance is mandated for end-product certification. | Choose when regulatory requirements specify halogen-free materials, especially for EU medical or public infrastructure deployments. |
| SMCJ16CA-E3/52 | Same VWM, VBR, and VC, but in larger SMC (DO-214AB) package; 1500 W PPPM, higher IPPM (38.9 A), and lower RθJA (50 °C/W). | Used where higher surge endurance is required (e.g., primary-side AC input protection), but requires larger board area and different pad layout. | Select when system-level surge testing exceeds 600 W requirements or when thermal management demands lower junction rise per watt. |
Compared with SMBJ16CA-E3/52, the M3 variant offers identical protection performance with halogen-free construction, while the SMCJ16CA-E3/52 delivers 2.5× higher surge capacity in a physically larger package - enabling trade-offs between board space, regulatory compliance, and worst-case surge margin.
Availability
SMBJ16CA-E3/52 is available at Aetrix Electronics and suitable for industrial motor drives, telecom line interfaces, automotive body control modules, and consumer sensor hubs requiring stable component supply and consistent surge protection performance across production batches.
Supply support for SMBJ16CA-E3/52 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, rectifiers, and protection devices with emphasis on reliability, power handling, and automotive-grade qualification.
The SMBJ series is engineered for high-reliability transient suppression in space-constrained surface-mount applications, targeting industrial automation, telecommunications infrastructure, and automotive subsystems where compact, repeatable clamping is critical.
FAQ
What is the maximum clamping voltage of SMBJ16CA-E3/52 under a 10/1000 µs surge?
The SMBJ16CA-E3/52 has a maximum clamping voltage (VC) of 26.0 V when subjected to its rated peak pulse current of 23.1 A with a 10/1000 µs waveform. This value is measured per Fig. 1 and Table 1 in Vishay document 88392 and defines the upper voltage limit imposed on protected circuitry during standardized surge events.
Is SMBJ16CA-E3/52 suitable for bidirectional signal line protection?
Yes, SMBJ16CA-E3/52 is explicitly designed for bidirectional applications, as indicated by the "CA" suffix and confirmed in the datasheet's "DEVICES FOR BIDIRECTION APPLICATIONS" section. Its symmetrical VBR and VC characteristics enable effective clamping of both positive and negative transients on AC-coupled or differential lines such as RS-485 or CAN without polarity constraints.
Does SMBJ16CA-E3/52 meet automotive qualification standards?
The base SMBJ16CA-E3/52 is commercial-grade; however, Vishay offers AEC-Q101-qualified versions under ordering codes like SMBJ16CAHE3_B/H. These variants undergo stress testing per AEC-Q101 and are intended for automotive subsystems - the SMBJ16CA-E3/52 itself is not AEC-Q101 qualified but shares identical electrical design and can be upgraded to HE3 for automotive use.
What is the thermal resistance from junction to ambient for SMBJ16CA-E3/52?
The typical junction-to-ambient thermal resistance (RθJA) of SMBJ16CA-E3/52 is 100 °C/W when mounted on the minimum recommended pad layout (0.2" × 0.2" copper pads). This value assumes natural convection and is critical for calculating steady-state temperature rise under continuous power dissipation up to its 5.0 W rating.
How does the leakage current of SMBJ16CA-E3/52 compare at its stand-off voltage?
At its 16 V stand-off voltage (VWM), SMBJ16CA-E3/52 exhibits a maximum reverse leakage current (ID) of 1.0 µA at 25 °C, as specified in Table 1 of Vishay document 88392. This low leakage preserves signal integrity in high-impedance sensor or communication circuits and remains stable across its full operating temperature range.
SMBJ16CA-E3/52 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-E3/52 FAQ
1.How can I place an order for SMBJ16CA-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ16CA-E3/52 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-E3/52 reliable?
The price and inventory of SMBJ16CA-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ16CA-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ16CA-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ16CA-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ16CA-E3/52?
SMBJ16CA-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ16CA-E3/52 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-E3/52?
For technical support, including SMBJ16CA-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ16CA-E3/52 requirements.
6.How does Aetrix verify that SMBJ16CA-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ16CA-E3/52 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-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ16CA-E3/52?
All SMBJ16CA-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ16CA-E3/52, 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-E3/52 part is unused and in its original packaging.
Return procedure for SMBJ16CA-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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