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Vishay General Semiconductor - Diodes Division SMB8J16CA-E3/52
- Part No.:
- SMB8J16CA-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB8J16CA-E3/52.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,487
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Product details
Overview
SMB8J16CA-E3/52 from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for high-energy surge protection on signal and power lines. It features a 16 V stand-off voltage (VWM), 26.0 V maximum clamping voltage (VC) at 30.8 A peak pulse current (IPPM), and 800 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMB8J16CA-E3/52 datasheet, SMB8J16CA-E3/52 pinout, SMB8J16CA-E3/52 application, or SMB8J16CA-E3/52 equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, low thermal resistance (RθJL = 20 °C/W), and compatibility with automated SMT assembly on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector, responding within picoseconds to transients exceeding its breakdown threshold (VBR min = 17.8 V, max = 19.7 V at 1 mA). Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and robust surge handling under repetitive or single-event conditions per ANSI/IEEE C62.35.
Thermally, it sustains operation from −55 °C to +150 °C junction temperature, with RθJA = 72 °C/W (on standard pad layout) and RθJL = 20 °C/W - enabling reliable performance in compact, convection-cooled automotive ECUs and industrial PLC modules without forced airflow.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - maximum continuous reverse operating voltage before clamping initiates; defines safe signal line bias margin. |
| VBR (min/max) | 17.8 V / 19.7 V at 1 mA - precise breakdown onset range ensuring predictable turn-on during overvoltage events. |
| VC @ IPPM | 26.0 V at 30.8 A - clamping voltage under full 10/1000 µs surge; limits downstream IC stress to safe levels. |
| PPPM | 800 W - peak pulse power rating for bidirectional operation; supports IEC 61000-4-5 Level 3/4 surge immunity. |
| ID @ VWM | <1.0 µA - ultra-low reverse leakage preserves signal integrity and battery life in always-on circuits. |
| TJ max. | +150 °C - enables deployment in under-hood automotive environments and sealed industrial enclosures. |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional device with no polarity marking - symmetrical terminals suitable for AC-coupled or differential signal lines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode / Anode (symmetrical) | Transient shunt path | Both terminals function identically; connects across protected line and ground (or between differential pairs) to clamp surges in either direction. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Protects AC signals, RS-485 buses, and CAN FD lines without polarity constraints or external diode pairing. |
| AEC-Q101 qualification | Validated for automotive applications including engine control, ADAS sensors, and body electronics with zero field failure history requirements. |
| Low clamping ratio (VC/VBR ≈ 1.46) | Minimizes voltage overshoot during surge events - critical for safeguarding 3.3 V/5 V logic and analog front-ends. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without pre-baking; supports high-yield automated assembly. |
| Glass-passivated junction | Ensures long-term parameter stability and resistance to humidity-induced degradation in harsh industrial environments. |
Applications
| Automotive Sensor Interface | Industrial RS-485 Network |
|---|---|
Use Scenario: Protecting wheel speed, pressure, and temperature sensor outputs exposed to load-dump and ISO 7637-2 pulses in vehicle chassis. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed between sensor signal line and chassis ground. Use Value: Limits induced transients to ≤26.0 V, preventing damage to 12-bit ADC inputs and microcontroller GPIOs rated for 3.3 V or 5 V operation. |
Use Scenario: Safeguarding half-duplex RS-485 transceivers (e.g., SN65HVD230) in factory automation networks subject to EFT and lightning-induced surges. IC Role / Device Role / Timing Role: Bidirectional clamping device across A/B differential pair and ground. Use Value: Maintains signal integrity below 26.0 V clamping level while supporting >500 kbps data rates due to low junction capacitance (~200 pF at 0 V). |
| Consumer USB-C Port Protection | Smart Meter Power Line Interface |
Use Scenario: Secondary-level surge suppression on USB-C CC and VCONN lines in portable chargers and docking stations. IC Role / Device Role / Timing Role: Standoff-clamp TVS placed after primary common-mode choke to absorb differential-mode transients. Use Value: Withstands 800 W surges while adding <1.0 µA leakage - preserving battery standby time and meeting USB-IF ESD compliance. |
Use Scenario: Protecting isolated DC-DC converter inputs in smart electricity meters connected to noisy 230 VAC mains via optocoupler feedback paths. IC Role / Device Role / Timing Role: Bidirectional suppressor bridging isolated supply rail and local ground to prevent coupling of fast transients into measurement circuitry. Use Value: Enables EN 61000-4-5 Level 3 (2 kV) immunity without derating, thanks to 150 °C TJ max and stable VBR over temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16CA-E3/52 | Unchanged VWM (16 V) but higher PPPM (1000 W unidirectional only); bidirectional version not offered - requires dual-device implementation for AC protection. | Limited to unidirectional use cases like DC power rails; unsuitable for differential or AC-coupled signal lines without redesign. | Select only when protecting DC-biased lines where polarity is fixed and higher single-direction surge margin is required. |
| SMAJ16CA-E3/52 | Same VWM and VC, but lower PPPM (400 W) and larger RθJA (110 °C/W); SMA package has smaller pad area and lower surge endurance. | Acceptable for consumer-grade or low-duty-cycle applications; insufficient for automotive or industrial surge test compliance. | Choose for cost-sensitive, non-automotive designs where space is constrained and surge energy is limited to <400 W. |
Compared with SMBJ16CA-E3/52 and SMAJ16CA-E3/52, SMB8J16CA-E3/52 delivers optimal balance of bidirectional capability, 800 W surge rating, and AEC-Q101 qualification - making it the preferred choice for automotive and industrial differential interface protection without layout or component count penalties.
Availability
SMB8J16CA-E3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial RS-485 networks, and smart meter power line interfaces requiring stable component supply, RoHS-compliant packaging, and AEC-Q101 traceability.
Supply support for SMB8J16CA-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 reliability, power density, and automotive qualification.
The SMB8J series is part of Vishay's TRANSZORB® TVS portfolio, engineered specifically for high-energy bidirectional surge suppression in space-constrained, thermally demanding applications such as automotive ECUs and industrial communication nodes.
FAQ
What is the clamping voltage of SMB8J16CA-E3/52 under maximum surge conditions?
The SMB8J16CA-E3/52 exhibits a maximum clamping voltage (VC) of 26.0 V when subjected to its rated peak pulse current of 30.8 A using the standardized 10/1000 µs waveform. This value is measured at the device terminals under specified test conditions and defines the upper voltage limit imposed on protected circuitry during transient events.
Is SMB8J16CA-E3/52 suitable for automotive applications?
Yes, SMB8J16CA-E3/52 is AEC-Q101 qualified and manufactured with automotive-grade process controls. Its construction includes glass-passivated junctions, MSL Level 1 moisture sensitivity, and guaranteed operation from −55 °C to +150 °C - fulfilling requirements for engine bay, chassis, and ADAS sensor module deployments.
How does SMB8J16CA-E3/52 differ from unidirectional SMBJ16A variants?
SMB8J16CA-E3/52 is bidirectional with symmetric clamping behavior, whereas SMBJ16A is unidirectional and conducts only in reverse bias. The "C" suffix denotes bidirectionality, enabling protection of AC signals and differential buses without polarity concerns - unlike SMBJ16A, which requires correct cathode orientation.
What is the thermal resistance from junction to lead (RθJL) for SMB8J16CA-E3/52?
The SMB8J16CA-E3/52 has a typical junction-to-lead thermal resistance (RθJL) of 20 °C/W, measured under standard test conditions. This low value supports efficient heat transfer to PCB copper pads and enables sustained operation in high-temperature environments when mounted per Vishay's recommended 0.2" × 0.2" pad layout.
Does SMB8J16CA-E3/52 require special handling during PCB assembly?
No special handling is required beyond standard J-STD-020 Level 1 guidelines: SMB8J16CA-E3/52 is rated for peak reflow temperatures up to 260 °C and does not require baking or dry pack shipping. Its matte tin-plated leads comply with JESD 22-B102 and J-STD-002 for reliable solder wetting in lead-free processes.
SMB8J16CA-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):
- 30.8A
- Power - Peak Pulse:
- 800W
- 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 (SMB)
SMB8J16CA-E3/52 FAQ
1.How can I place an order for SMB8J16CA-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB8J16CA-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 SMB8J16CA-E3/52 reliable?
The price and inventory of SMB8J16CA-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 SMB8J16CA-E3/52 is usually 5 days.
3.What payment methods are accepted for SMB8J16CA-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB8J16CA-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB8J16CA-E3/52?
SMB8J16CA-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB8J16CA-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 SMB8J16CA-E3/52?
For technical support, including SMB8J16CA-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB8J16CA-E3/52 requirements.
6.How does Aetrix verify that SMB8J16CA-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMB8J16CA-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 SMB8J16CA-E3/52 meets industry standards.
7.What is the process for return or replacement of SMB8J16CA-E3/52?
All SMB8J16CA-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB8J16CA-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 SMB8J16CA-E3/52 part is unused and in its original packaging.
Return procedure for SMB8J16CA-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB8J16CA-E3/52 Tags
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