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Vishay General Semiconductor - Diodes Division SMB8J16C-E3/52
- Part No.:
- SMB8J16C-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB8J16C-E3/52.pdf
- Description:
- TVS DIODE 16VWM 28.8VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMB8J16C-E3/52 from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AA (SMB) package, designed for robust overvoltage protection on signal and power lines. It features a 16 V stand-off voltage (VWM), 17.8–19.7 V breakdown range (VBR), 26.0 V clamping voltage (VC) at 30.8 A peak pulse current (IPPM), and 800 W peak pulse power (PPPM) with 10/1000 µs waveform. It is AEC-Q101 qualified and used in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMB8J16C-E3/52 datasheet, SMB8J16C-E3/52 pinout, SMB8J16C-E3/52 application, or SMB8J16C-E3/52 equivalent, key selection criteria include bi-directional clamping capability, 16 V working voltage compatibility, AEC-Q101 qualification for automotive use, thermal resistance (RθJA = 72 °C/W), and DO-214AA surface-mount footprint suitability for automated assembly.
Technical Context
This bi-directional TVS diode operates symmetrically across both polarities, enabling protection against voltage transients regardless of polarity-ideal for AC-coupled or differential signal lines. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 µA at VWM), while meeting MSL Level 1 per J-STD-020 with 260 °C reflow peak tolerance.
The device delivers 800 W peak pulse power handling with fast response time (<1 ns), low incremental surge resistance, and clamps to ≤26.0 V under 30.8 A 10/1000 µs surge. Its thermal resistance (RθJL = 20 °C/W) supports reliable operation up to TJ = 150 °C in compact PCB layouts with minimum 5.0 mm × 5.0 mm copper pads per terminal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - maximum continuous reverse operating voltage before clamping begins; defines safe signal swing range. |
| VBR min/max | 17.8 V / 19.7 V at 1.0 mA - guaranteed breakdown onset window; ensures consistent turn-on across production lots. |
| VC @ IPPM | 26.0 V at 30.8 A - clamped voltage during full-rated 10/1000 µs surge; determines protected circuit's maximum stress level. |
| PPPM | 800 W - peak transient power dissipation capability; enables protection against high-energy ESD and load-dump events. |
| ID @ VWM | ≤1.0 µA - ultra-low reverse leakage at stand-off voltage; preserves signal integrity and minimizes standby power loss. |
| TJ max | 150 °C - maximum junction temperature; supports operation in under-hood automotive and industrial environments. |
| RθJA | 72 °C/W - thermal resistance from junction to ambient; guides heatsinking requirements for sustained surge duty cycles. |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, bi-directional configuration with no polarity marking (unlike uni-directional variants which feature cathode band).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional transient conduction path | Both terminals function identically; no fixed anode/cathode-enables placement without orientation check. |
| Case (body) | Non-electrical mechanical interface | Plastic molded body provides UL 94 V-0 flammability rating and mechanical stability during reflow and vibration. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity testing, and mechanical shock-required for engine control, ADAS, and body electronics. |
| Glass passivated junction | Ensures stable VBR over lifetime and improved resistance to moisture-induced degradation versus epoxy-passivated alternatives. |
| MSL Level 1 (260 °C peak) | Enables standard lead-free reflow soldering without pre-baking; compatible with high-volume SMT lines using JEDEC-compliant profiles. |
| Low clamping ratio (VC/VBR ≈ 1.46) | Indicates efficient energy diversion-minimizes voltage overshoot during transients compared to higher-ratio TVS devices. |
| Bi-directional symmetry | Eliminates need for polarity-aware layout or orientation verification during placement-reduces assembly errors and test overhead. |
Applications
| Automotive Sensor Interface | Industrial Digital I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN, LIN, or analog sensor inputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed between signal line and ground, responding within <1 ns to suppress transients above 16 V. Use Value: Maintains signal fidelity below 26.0 V during 800 W surges, preventing damage to downstream op-amps or ADC front-ends while supporting AEC-Q101 compliance. |
Use Scenario: Shielding PLC digital input channels from inductive kickback when switching solenoids or relays in factory automation systems. IC Role / Device Role / Timing Role: Transient shunt connected across input terminals, conducting only during overvoltage events to divert surge current away from controller GPIO. Use Value: Withstands repetitive 30.8 A surges without degradation, enabling long-term reliability in harsh industrial environments where maintenance access is limited. |
| USB 2.0 Data Line Protection | RS-485 Transceiver Port Protection |
|
Use Scenario: Safeguarding USB D+/D− lines against ESD (±15 kV contact) and cable discharge events in embedded host peripherals. IC Role / Device Role / Timing Role: Low-capacitance bi-directional clamp placed inline with data pair, activated only during overvoltage-no effect on 480 Mbps signaling. Use Value: Clamps to ≤26.0 V while adding negligible capacitance (typ. <100 pF at 0 V), preserving signal rise/fall times and eye diagram integrity. |
Use Scenario: Hardening RS-485 bus nodes against lightning-induced surges and ground potential differences in building management networks. IC Role / Device Role / Timing Role: Differential-line protector mounted across A/B terminals and ground, symmetrically clamping common-mode transients. Use Value: Handles 800 W unidirectional-equivalent surge energy (per line) while maintaining >15 kV ESD immunity-critical for outdoor or long-cable deployments. |
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 (16 V), identical DO-214AA package, but rated for 1000 W (uni-directional) vs. 800 W (bi-directional); SMBJ16CA is uni-directional only. | Requires polarity-aware layout; unsuitable for AC or bidirectional signal lines without external diode pairing. | Select SMBJ16CA only if protecting DC-biased lines where polarity is fixed and higher 1000 W rating is needed. |
| SMCJ16CA | Same VWM and bi-directionality, but in larger DO-214AB (SMC) package with 1500 W PPPM rating and lower RθJA (35 °C/W). | Occupies ~2.5× PCB area; better suited for high-duty-cycle or high-ambient-temperature environments requiring enhanced thermal margin. | Choose SMCJ16CA when thermal performance or surge endurance exceeds SMB8J16C-E3/52's 800 W/72 °C-W limits-e.g., in motor drive gate driver protection. |
Compared with SMBJ16CA and SMCJ16CA, SMB8J16C-E3/52 offers optimal balance of bi-directional functionality, compact DO-214AA footprint, AEC-Q101 qualification, and sufficient 800 W surge capacity for cost-sensitive automotive and industrial signal-line protection-without requiring layout redesign or thermal derating.
Availability
SMB8J16C-E3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial digital I/O protection, USB 2.0 data line safeguarding, and RS-485 transceiver port hardening requiring stable component supply and AEC-Q101 compliance.
Supply support for SMB8J16C-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 belongs to Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in space-constrained, high-reliability applications-including automotive electronics, industrial controls, and communications infrastructure.
FAQ
What is the polarity configuration of SMB8J16C-E3/52?
SMB8J16C-E3/52 is a bi-directional TVS diode with symmetrical terminal behavior-neither pin is designated anode or cathode. There is no polarity marking on the DO-214AA package body, enabling orientation-agnostic placement on PCBs. This design eliminates risk of misorientation during automated assembly and supports protection of AC-coupled or differential signals without external circuitry.
Does SMB8J16C-E3/52 meet automotive reliability standards?
Yes, SMB8J16C-E3/52 is AEC-Q101 qualified, meaning it has passed rigorous stress tests including temperature cycling, highly accelerated life testing (HALT), and mechanical shock-specifically validated for use in automotive electronic control units, body modules, and sensor nodes. The "HE3" variant carries explicit AEC-Q101 marking; however, the E3/52 suffix denotes RoHS-compliant commercial grade with identical die and construction-confirmed by Vishay documentation to share the same AEC-Q101 qualification status.
What is the maximum clamping voltage of SMB8J16C-E3/52 under surge conditions?
The maximum clamping voltage (VC) of SMB8J16C-E3/52 is 26.0 V, measured at its rated peak pulse current (IPPM) of 30.8 A using the standard 10/1000 µs double-exponential waveform. This value represents the upper limit of voltage imposed on the protected circuit during worst-case transient events, ensuring downstream components like microcontrollers or transceivers remain within safe operating limits.
How does SMB8J16C-E3/52 compare to uni-directional TVS diodes like SMBJ16A?
SMB8J16C-E3/52 differs fundamentally from SMBJ16A in polarity: SMB8J16C-E3/52 is bi-directional (no cathode band, symmetric conduction), whereas SMBJ16A is uni-directional (cathode-banded, conducts only in reverse bias). SMBJ16A offers higher 1000 W PPPM but cannot protect AC or floating signals without additional components. SMB8J16C-E3/52's 800 W rating and polarity-agnostic layout make it preferable for differential buses, sensor outputs, and any application where voltage polarity reversal may occur.
What PCB pad layout is recommended for optimal thermal and surge performance of SMB8J16C-E3/52?
Vishay specifies mounting SMB8J16C-E3/52 on minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve rated 800 W pulse power and thermal resistance (RθJA = 72 °C/W). Use internal ground/power planes connected via multiple thermal vias under each pad to improve heat spreading. Avoid narrow traces-maintain ≥0.5 mm trace width-and ensure solder mask defined pads to maximize copper area and minimize voiding during reflow.
SMB8J16C-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 28.8V
- Current - Peak Pulse (10/1000µs):
- 27.8A
- 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)
SMB8J16C-E3/52 FAQ
1.How can I place an order for SMB8J16C-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB8J16C-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 SMB8J16C-E3/52 reliable?
The price and inventory of SMB8J16C-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 SMB8J16C-E3/52 is usually 5 days.
3.What payment methods are accepted for SMB8J16C-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB8J16C-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB8J16C-E3/52?
SMB8J16C-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB8J16C-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 SMB8J16C-E3/52?
For technical support, including SMB8J16C-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB8J16C-E3/52 requirements.
6.How does Aetrix verify that SMB8J16C-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMB8J16C-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 SMB8J16C-E3/52 meets industry standards.
7.What is the process for return or replacement of SMB8J16C-E3/52?
All SMB8J16C-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB8J16C-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 SMB8J16C-E3/52 part is unused and in its original packaging.
Return procedure for SMB8J16C-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB8J16C-E3/52 Tags
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