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Vishay General Semiconductor - Diodes Division SMBG16CAHE3/52
- Part No.:
- SMBG16CAHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG16CAHE3/52.pdf
- Description:
- TVS DIODE 16VWM 26VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,982
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Product details
Overview
SMBG16CAHE3/52 from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for robust overvoltage protection of signal and power lines. It features a 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), clamping voltage of 26.0 V at 23.1 A, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the SMBG16CAHE3/52 datasheet, SMBG16CAHE3/52 pinout, SMBG16CAHE3/52 application, or SMBG16CAHE3/52 equivalent, this device is selected for high-energy surge suppression in automotive sensor interfaces, industrial I/O ports, and telecom line protection where bidirectional clamping, low leakage (<1.0 μA at VWM), and MSL Level 1 solderability are required.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with identical VBR, VC, and IPPM specifications in forward and reverse directions. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance, enabling precise clamping during fast transients such as ESD (IEC 61000-4-2) and lightning-induced surges (IEC 61000-4-5).
The device is rated for -55 °C to +150 °C operating junction temperature, supports 100 A non-repetitive forward surge current (8.3 ms half-sine), and exhibits typical thermal resistance of 20 °C/W (junction-to-lead), making it suitable for high-density PCB layouts with limited copper area.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin for protected circuitry. |
| VBR (min/max) | 17.8 V / 19.7 V at 1 mA - Confirmed breakdown threshold range; ensures consistent turn-on across production lots. |
| VC @ IPPM | 26.0 V at 23.1 A - Clamped voltage under 600 W 10/1000 μs surge; limits stress on downstream ICs like CAN transceivers or ADC inputs. |
| ID @ VWM | <1.0 μA - Ultra-low leakage preserves signal integrity in high-impedance sensor bias networks and battery-powered systems. |
| PPPM | 600 W - Peak pulse power handling per 10/1000 μs waveform; meets ISO 7637-2 Pulse 1/2/3a/3b and IEC 61000-4-5 Level 3 requirements. |
| TJ max | +150 °C - Maximum junction temperature rating; enables use in under-hood automotive environments and enclosed industrial enclosures. |
| AEC-Q101 | Qualified - Validated for automotive applications including engine control modules, ADAS sensors, and body electronics per stress test requirements. |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, gull-wing leads, matte tin-plated terminals compliant with J-STD-002 and JESD 22-B102. No polarity marking - bidirectional operation confirmed by CA suffix and symmetric electrical specs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional surge path | Either terminal serves as input/output; no cathode band marking; identical clamping behavior in both directions. |
| Lead 1 / Lead 2 | Thermal and electrical interface | Both leads conduct surge current and dissipate heat; RθJL = 20 °C/W requires minimum 5.0 mm × 5.0 mm copper pad per lead per datasheet fig. 2. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables protection against severe transients like load dump spikes and inductive switching events without derating in standard PCB layouts. |
| AEC-Q101 qualified | Validated for automotive use including temperature cycling, HTRB, and mechanical shock tests-reduces qualification burden for Tier 1 suppliers. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns; eliminates bake requirements pre-assembly. |
| Glass passivated junction | Improves long-term stability of VBR and leakage under thermal cycling and humidity exposure-critical for 15+ year automotive service life. |
| UL 94 V-0 molding compound | Meets flammability safety standards for enclosed industrial and automotive housings where fire risk mitigation is mandated. |
Applications
| Automotive Sensor Protection | Industrial Digital I/O Protection |
|---|---|
Use Scenario: Protecting LIN bus or analog sensor outputs (e.g., pressure, temperature) in engine control units from load dump and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between sensor output and microcontroller input pin. Use Value: Limits transient voltage to ≤26.0 V during 100 V/50 ms load dump events, preventing latch-up or gate oxide damage in 3.3 V/5 V MCUs. | Use Scenario: Shielding PLC digital input channels from field wiring surges caused by relay coil de-energization or nearby motor drives. IC Role / Device Role / Timing Role: Primary surge shunt connected across input terminals upstream of optocoupler or Schmitt trigger input stage. Use Value: Absorbs up to 600 W of energy without degradation, maintaining <1.0 μA leakage to preserve logic threshold accuracy over temperature. |
| Telecom Line Interface | Consumer Power Adapter ESD Protection |
Use Scenario: Safeguarding RS-485 transceiver pins in base station backhaul equipment exposed to lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Secondary-level TVS placed after gas discharge tube (GDT) in hybrid protection scheme. Use Value: Responds in <1 ns to clamp residual transients to 26.0 V, protecting ±12 V RS-485 drivers from destructive overvoltage. | Use Scenario: Adding secondary surge immunity to USB-C or barrel jack inputs in smart home hubs subjected to user-handling ESD. IC Role / Device Role / Timing Role: Low-capacitance (<50 pF typical) bidirectional clamp on DC input rail prior to buck converter controller. Use Value: Withstands ±15 kV contact ESD (IEC 61000-4-2) while adding <0.5 nH parasitic inductance-no signal integrity impact on 5 V/3 A charging paths. |
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 VWM/VBR/VC, but 600 W rating uses 10/1000 μs waveform with 0.01% duty cycle; SMBJ has slightly higher RθJA (110 °C/W vs. 100 °C/W). | Identical functional role; SMBJ series lacks AEC-Q101 qualification and is rated for industrial grade only. | Select SMBG16CAHE3/52 when automotive qualification or extended temperature validation is required; SMBJ16CA-E3/52 suffices for commercial-grade designs. |
| SMCJ16CAHE3/A | Higher PPPM (1500 W), same VWM/VBR, but larger SMC (DO-214AB) package (7.11 mm × 6.22 mm vs. SMBG's 4.57 mm × 3.94 mm). | Used where higher surge margin is needed (e.g., AC mains input stages); incompatible with SMBG footprint due to 2.5 mm wider body and different lead pitch. | Choose SMBG16CAHE3/52 for space-constrained automotive PCBs; select SMCJ16CAHE3/A only if layout allows larger footprint and 1500 W capability is mandatory. |
Compared with SMBJ16CA-E3/52 and SMCJ16CAHE3/A, SMBG16CAHE3/52 uniquely combines AEC-Q101 qualification, SMBG footprint compatibility, and verified 600 W surge handling-making it the optimal choice for automotive and high-reliability industrial designs where board space and qualification compliance are jointly constrained.
Availability
SMBG16CAHE3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection circuits, and consumer power adapter ESD hardening requiring stable component supply and full traceability.
Supply support for SMBG16CAHE3/52 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 reliability, precision, and automotive-grade qualification.
The SMBG series was developed specifically for high-density, AEC-Q101-compliant transient suppression in automotive and industrial environments where low-profile packaging, repeatable clamping, and extended temperature operation are essential design requirements.
FAQ
What does the "CA" suffix indicate in SMBG16CAHE3/52?
The "CA" suffix denotes a bidirectional configuration-meaning SMBG16CAHE3/52 provides symmetrical transient suppression in both polarities, with identical breakdown and clamping characteristics regardless of voltage polarity applied. This differs from unidirectional variants (e.g., SMBG16A) that feature a cathode band and only suppress in reverse bias.
Is SMBG16CAHE3/52 compatible with lead-free reflow processes?
Yes, SMBG16CAHE3/52 meets MSL Level 1 per J-STD-020 and supports peak reflow temperatures up to 260 °C, making it fully compatible with standard lead-free soldering profiles without preconditioning or baking. Its matte tin-plated leads comply with J-STD-002 for solderability.
What is the maximum clamping voltage of SMBG16CAHE3/52 under surge conditions?
The maximum clamping voltage (VC) of SMBG16CAHE3/52 is 26.0 V at a peak pulse current (IPPM) of 23.1 A, measured using the standardized 10/1000 μs double-exponential waveform. This value is guaranteed across the full operating temperature range (-55 °C to +150 °C).
How does SMBG16CAHE3/52 differ from SMBG16AHE3/52?
SMBG16CAHE3/52 is bidirectional with symmetrical VBR and VC in both directions and no polarity marking, whereas SMBG16AHE3/52 is unidirectional, features a cathode band, and specifies forward voltage drop (VF = 3.5 V at 50 A). The "CA" variant is used where AC-coupled or polarity-agnostic protection is required.
Does SMBG16CAHE3/52 meet automotive qualification standards?
Yes, SMBG16CAHE3/52 carries AEC-Q101 qualification, confirming its suitability for automotive applications including engine control, ADAS sensors, and body electronics. This includes validation for temperature cycling, high-temperature reverse bias (HTRB), and mechanical shock per the AEC-Q101 stress test standard.
SMBG16CAHE3/52 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG16CAHE3/52 FAQ
1.How can I place an order for SMBG16CAHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG16CAHE3/52 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 SMBG16CAHE3/52 reliable?
The price and inventory of SMBG16CAHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG16CAHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBG16CAHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG16CAHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG16CAHE3/52?
SMBG16CAHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG16CAHE3/52 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 SMBG16CAHE3/52?
For technical support, including SMBG16CAHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG16CAHE3/52 requirements.
6.How does Aetrix verify that SMBG16CAHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG16CAHE3/52 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 SMBG16CAHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBG16CAHE3/52?
All SMBG16CAHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG16CAHE3/52, 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 SMBG16CAHE3/52 part is unused and in its original packaging.
Return procedure for SMBG16CAHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG16CAHE3/52 Tags
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