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Vishay General Semiconductor - Diodes Division SMBG16CA-E3/52
- Part No.:
- SMBG16CA-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG16CA-E3/52.pdf
- Description:
- TVS DIODE 16VWM 26VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,014
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Product details
Overview
SMBG16CA-E3/52 from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for clamping voltage transients on signal and power lines. It features 16 V stand-off voltage (VWM), 17.8–19.7 V breakdown voltage (VBR) at 1 mA, 600 W peak pulse power (10/1000 µs), <1.0 µA reverse leakage at VWM, and clamps to ≤26.0 V at 23.1 A peak pulse current - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMBG16CA-E3/52 datasheet, SMBG16CA-E3/52 pinout, SMBG16CA-E3/52 application, or SMBG16CA-E3/52 equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, 150 °C junction temperature rating, low-profile SMBG package compatibility with automated SMT placement, and compliance with UL 497B surge protector classification.
Technical Context
This device operates as a voltage-clamped crowbar during ESD or lightning-induced surges, responding in sub-nanosecond time with symmetrical conduction in both polarities. Its glass-passivated junction ensures stable VBR tolerance (±5 %) and low incremental surge resistance, enabling consistent clamping performance across repetitive 10/1000 µs transients at 0.01 % duty cycle.
Rated for -55 °C to +150 °C operation and qualified to AEC-Q101, SMBG16CA-E3/52 supports automotive-grade reliability without derating up to 125 °C ambient. Thermal resistance is 100 °C/W (junction-to-ambient, on 5 mm × 5 mm copper pads), limiting self-heating during surge events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 17.8 V / 19.7 V at 1 mA - defines tight 5 % tolerance window for predictable turn-on threshold |
| IPPM | 23.1 A - peak surge current it safely shunts at 10/1000 µs waveform without failure |
| VC @ IPPM | ≤26.0 V - clamped voltage seen by protected circuit under full-rated surge |
| PPPM | 600 W - peak transient power dissipation capability per JEDEC standard waveform |
| TJ max | +150 °C - enables use in under-hood automotive and high-temperature industrial environments |
| Leakage @ VWM | <1.0 µA - negligible standby current draw, critical for battery-powered sensor nodes |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, low-profile gull-wing leaded case with matte tin-plated terminals; meets UL 94 V-0, MSL Level 1 (260 °C peak reflow), and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; symmetrical with cathode for bidirectional operation | No polarity marking - identical electrical behavior in either direction; requires no orientation during placement |
| Cathode | Current exit terminal in forward bias; symmetrical with anode for bidirectional operation | Terminal pair functions identically in both directions - simplifies PCB layout and eliminates polarity verification |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines (e.g., CAN, RS-485, sensor bridges) without external polarity management |
| AEC-Q101 qualification | Validated for automotive applications including engine control modules, ADAS sensor interfaces, and body electronics requiring zero-failure field reliability |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 (4 kV surge) and ISO 7637-2 Pulse 1/2a/3a when properly laid out on 5 mm × 5 mm copper pads |
| Low-profile SMBG package | 0.235" × 0.130" footprint with 0.030" height - fits space-constrained modules like automotive camera ECUs and industrial IoT edge nodes |
| Glass-passivated junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift in harsh environments |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine bay modules exposed to load dump and ISO 7637-2 transients. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed directly at connector entry point to divert surge energy before reaching precision ADC front-end. Use Value: Clamps transients to ≤26.0 V while maintaining <1.0 µA leakage - preserves sensor accuracy and avoids false triggers in 12 V systems. | Use Scenario: Safeguarding 24 V PLC digital input channels against induced surges from relay coil switching and motor drive noise. IC Role / Device Role / Timing Role: Bidirectional shunt element across input terminals, absorbing positive/negative spikes without polarity constraints. Use Value: Symmetrical 17.8–19.7 V breakdown allows identical protection for sinking/sourcing inputs - reduces BOM count and layout complexity. |
| Telecom Line Interface | Consumer USB Port Protection |
Use Scenario: Shielding RS-485 transceiver pins in outdoor telecom base station equipment subjected to lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Primary line-side TVS on differential bus, operating in conjunction with common-mode chokes and secondary filtering. Use Value: 600 W rating and 23.1 A IPPM enable robust handling of IEC 61000-4-5 2 Ω/12 Ω coupling network surges without degradation. | Use Scenario: ESD protection for USB 2.0 D+/D− lines in portable medical devices where low capacitance and AEC-Q101 reliability are mandated. IC Role / Device Role / Timing Role: Low-capacitance (<50 pF typical at 0 V) bidirectional clamp placed immediately adjacent to connector. Use Value: Sub-1 ns response time and ≤26.0 V clamping prevent data corruption and PHY latch-up during ±8 kV contact ESD events. |
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 | Same VWM/VBR/PPPM, but SMB (DO-214AA) package - 0.215" × 0.165" vs. SMBG's 0.235" × 0.130"; higher RθJA (125 °C/W) | Less effective thermal dissipation in high-density layouts; not AEC-Q101 qualified | Select SMBJ16CA only for cost-sensitive non-automotive designs where board space permits larger footprint and reliability requirements are lower. |
| SMCJ16CA | Same electrical specs but SMC (DO-214AB) package - 0.285" × 0.195", 1500 W PPPM, higher IPPM (38.9 A), RθJA = 60 °C/W | Over-specified surge capacity increases cost and footprint; may require layout redesign due to larger size | Choose SMCJ16CA only when system-level testing demands >600 W margin or when existing SMC footprints are standardized across platform. |
Compared with SMBJ16CA and SMCJ16CA, SMBG16CA-E3/52 delivers optimal balance of AEC-Q101 qualification, compact SMBG footprint, and verified 600 W surge handling - making it the preferred choice for space-constrained automotive and industrial modules requiring production-grade reliability.
Availability
SMBG16CA-E3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O protection, and telecom line interface circuits requiring stable component supply, RoHS compliance, and AEC-Q101 validation.
Supply support for SMBG16CA-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, MOSFETs, and protection devices with emphasis on high-reliability, high-efficiency solutions.
The SMBG series was engineered specifically for surface-mount transient suppression in automotive and industrial environments - prioritizing AEC-Q101 qualification, low-profile packaging, and repeatable clamping performance under real-world surge stress.
FAQ
What does the "CA" suffix indicate in SMBG16CA-E3/52?
The "CA" suffix denotes that SMBG16CA-E3/52 is a bidirectional transient voltage suppressor, meaning it provides symmetrical clamping for both positive and negative voltage transients. Unlike unidirectional variants (e.g., SMBG16A), SMBG16CA-E3/52 has no polarity marking and functions identically regardless of voltage polarity - essential for protecting AC-coupled or floating signal lines such as CAN bus or RS-485 interfaces.
Is SMBG16CA-E3/52 qualified for automotive applications?
Yes, SMBG16CA-E3/52 is explicitly AEC-Q101 qualified, as confirmed in Vishay's official documentation (Document Number: 88456, Revision: 09-Jan-2024). This qualification validates its reliability under automotive temperature cycling, humidity, mechanical shock, and surge stress conditions - making SMBG16CA-E3/52 suitable for engine control units, ADAS sensors, and body electronics where zero-field-failure performance is required.
What is the maximum clamping voltage of SMBG16CA-E3/52 under rated surge conditions?
The maximum clamping voltage (VC) of SMBG16CA-E3/52 is 26.0 V when subjected to its rated peak pulse current (IPPM) of 23.1 A using the standard 10/1000 µs waveform. This value is measured per JEDEC test conditions and guarantees that downstream circuitry - such as microcontrollers or transceivers - will not experience voltages exceeding 26.0 V during a 600 W transient event, provided layout follows Vishay's recommended 5.0 mm × 5.0 mm copper pad guidelines.
Does SMBG16CA-E3/52 have a defined polarity marking on the package?
No, SMBG16CA-E3/52 has no polarity marking - consistent with its bidirectional design. The SMBG (DO-215AA) package features two identical gull-wing terminals with no cathode band or other orientation indicator. This absence of marking reflects its symmetrical electrical behavior: either terminal serves as anode or cathode depending on instantaneous voltage polarity, eliminating placement errors and simplifying automated assembly.
What is the thermal resistance specification for SMBG16CA-E3/52, and how does it affect layout?
SMBG16CA-E3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes minimum recommended pad layout per Vishay's datasheet - underscoring that inadequate copper area will increase junction temperature during surge events, potentially degrading clamping consistency or long-term reliability. Layouts must allocate sufficient thermal copper to maintain safe operation at 150 °C TJ max.
SMBG16CA-E3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-215AA, SMB Gull Wing
- 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 (SMBG)
SMBG16CA-E3/52 FAQ
1.How can I place an order for SMBG16CA-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG16CA-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 SMBG16CA-E3/52 reliable?
The price and inventory of SMBG16CA-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 SMBG16CA-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBG16CA-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG16CA-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG16CA-E3/52?
SMBG16CA-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG16CA-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 SMBG16CA-E3/52?
For technical support, including SMBG16CA-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG16CA-E3/52 requirements.
6.How does Aetrix verify that SMBG16CA-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG16CA-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 SMBG16CA-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBG16CA-E3/52?
All SMBG16CA-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG16CA-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 SMBG16CA-E3/52 part is unused and in its original packaging.
Return procedure for SMBG16CA-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG16CA-E3/52 Tags
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