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Vishay General Semiconductor - Diodes Division SMB8J16CA-M3/52
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- Part No.:
- SMB8J16CA-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB8J16CA-M3/52.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,300
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Product details
Overview
SMB8J16CA-M3/52 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-M3/52 datasheet, SMB8J16CA-M3/52 pinout, SMB8J16CA-M3/52 application, or SMB8J16CA-M3/52 equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, halogen-free RoHS compliance (M3 suffix), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector, responding within <1 ps to transients induced by inductive switching or ESD events. Its glass-passivated junction ensures stable breakdown behavior, while low incremental surge resistance enables consistent clamping under repetitive surges up to 150 °C junction temperature.
The device complies with ANSI/IEEE C62.35 standards for surge suppression and meets J-STD-020 MSL Level 1 (260 °C reflow peak), supporting lead-free assembly. Its bidirectional symmetry allows use without polarity concern on AC-coupled or differential lines such as CAN FD or LIN bus interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR (min/max) | 17.8 V / 19.7 V at 1.0 mA - guaranteed breakdown threshold range for reliable turn-on |
| VC @ IPPM | 26.0 V at 30.8 A - clamping voltage during 10/1000 µs surge, limiting downstream stress |
| PPPM | 800 W - peak transient energy absorption capacity under standardized waveform |
| ID @ VWM | 1.0 µA - ultra-low leakage preserves signal integrity in high-impedance circuits |
| TJ max. | +150 °C - extended thermal rating supports under-hood automotive deployment |
| Package | SMB (DO-214AA) - surface-mount footprint compatible with IPC-7351B standard pad layout |
Pinout & Package
SMB8J16CA-M3/52 uses the SMB (DO-214AA) package: 2-terminal, non-polarized bidirectional device with no cathode marking. Terminals are matte tin-plated, solderable per J-STD-002 and JESD 22-B102, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient shunt path | Both terminals function identically; connects across protected line and return to clamp bidirectionally |
| Case (body) | Thermal conduction path | Plastic body transfers heat to PCB copper pads; RθJA = 72 °C/W typical with 5.0 mm × 5.0 mm pads |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan |
| Halogen-free & RoHS-compliant (M3) | Meets EU Directive 2011/65/EU and IEC 61249-2-21; suitable for green manufacturing |
| Low clamping ratio (VC/VBR ≈ 1.35) | Minimizes overvoltage exposure to downstream ICs compared to higher-ratio TVS devices |
| MSL Level 1 moisture sensitivity | Enables direct placement without baking; supports standard 260 °C Pb-free reflow profile |
| Glass-passivated junction | Ensures stable VBR over lifetime and improved resistance to humidity-induced parameter drift |
Applications
| Automotive Sensor Interface | Industrial PLC I/O Module |
|---|---|
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: Bidirectional shunt TVS placed between signal line and ground to clamp transients before reaching MCU or transceiver. Use Value: With 26.0 V clamping at 30.8 A, it holds protected node below 30 V during 800 W surges - preserving 3.3 V/5 V interface ICs rated for ≤36 V absolute max. | Use Scenario: Safeguarding 24 V digital input channels in programmable logic controllers against field-wiring surges and relay coil flyback. IC Role / Device Role / Timing Role: Primary front-end surge suppressor mounted directly at connector entry point, upstream of optocoupler or Schmitt trigger input stage. Use Value: 16 V VWM aligns with 24 V nominal system; 800 W PPPM handles repeated 1 kV/500 A transients per IEC 61000-4-5 Level 4 without degradation. |
| Telecom Line Card Protection | Consumer Appliance Motor Control |
Use Scenario: Shielding Ethernet PHY or RS-485 transceivers on telecom line cards from lightning-induced surges and hot-swap transients. IC Role / Device Role / Timing Role: Secondary-level protection paired with GDT or polymer PTC, providing fast-response clamping after coarse filtering. Use Value: Sub-nanosecond response and 26.0 V VC ensure signal integrity is maintained during 10/1000 µs surges - critical for maintaining 100 Mbps+ data rates. | Use Scenario: Suppressing commutation spikes from brushed DC motors in washing machines, HVAC blowers, and power tools. IC Role / Device Role / Timing Role: Mounted across motor terminals or H-bridge outputs to divert inductive kickback energy away from driver FETs. Use Value: 150 °C TJ max and 800 W rating allow sustained operation in enclosed, thermally constrained enclosures without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMB8J16CA-E3/52 | Same electrical specs; RoHS-compliant but not halogen-free (E3 vs. M3) | Acceptable for commercial/industrial use where halogen-free requirement is absent | Select E3 for cost-sensitive non-automotive designs; M3 required for automotive OEMs per material declarations |
| SMBJ16CA-M3/52 | Same VWM/VC/IPPM, but SMBJ series has 1000 W PPPM (unidirectional) and 600 W (bidirectional); SMB8J offers higher 800 W bidirectional rating | Better suited for high-repetition surge environments where bidirectional energy handling is critical | SMB8J16CA-M3/52 preferred when bidirectional 800 W capability is mandatory; SMBJ16CA-M3/52 may be used if unidirectional protection suffices |
Compared with SMB8J16CA-M3/52, the E3 variant lacks halogen-free certification but matches all electrical parameters, while SMBJ16CA-M3/52 trades 200 W lower bidirectional PPPM for broader industry familiarity - making SMB8J16CA-M3/52 optimal for AEC-Q101–mandated, high-energy bidirectional protection.
Availability
SMB8J16CA-M3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line card protection requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMB8J16CA-M3/52 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® high-power TVS family, engineered specifically for AEC-Q101–compliant surge protection in harsh environments where bidirectional clamping and thermal robustness are essential.
FAQ
What is the clamping voltage of SMB8J16CA-M3/52 and how is it measured?
The SMB8J16CA-M3/52 has a maximum clamping voltage (VC) of 26.0 V, measured at 30.8 A peak pulse current (IPPM) using the standardized 10/1000 µs double-exponential surge waveform. This value is guaranteed across temperature and lifetime per Vishay's qualification testing, and defines the upper voltage limit imposed on protected circuitry during transient events - critical for ensuring downstream ICs remain within their absolute maximum ratings.
Is SMB8J16CA-M3/52 suitable for automotive applications?
Yes, SMB8J16CA-M3/52 is AEC-Q101 qualified and carries the HM3 suffix indicating halogen-free, RoHS-compliant, and automotive-grade construction. It is explicitly rated for operation from −55 °C to +150 °C junction temperature and validated for mechanical shock, temperature cycling, and HTRB - making SMB8J16CA-M3/52 appropriate for engine control units, body electronics, and ADAS sensor interfaces per OEM requirements.
How does the SMB8J16CA-M3/52 differ from unidirectional TVS diodes like SMB10J16A-M3/52?
SMB8J16CA-M3/52 is bidirectional with symmetrical breakdown in both polarities, enabling use on AC-coupled or differential lines without polarity concerns; SMB10J16A-M3/52 is unidirectional and requires correct cathode orientation. Electrically, SMB8J16CA-M3/52 delivers 800 W PPPM bidirectionally, whereas SMB10J16A-M3/52 provides 1000 W only in reverse direction - a key distinction when protecting bidirectional buses like CAN or USB.
What PCB layout guidance applies to SMB8J16CA-M3/52 for optimal thermal and surge performance?
For optimal performance, mount SMB8J16CA-M3/52 on minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal as specified in the Vishay datasheet. Use internal ground planes and thermal vias beneath pads to reduce RθJA; avoid narrow traces between the device and protected node to minimize inductance. The SMB8J16CA-M3/52's RθJA is characterized at 72 °C/W under this layout - deviations increase junction temperature and degrade surge endurance.
Does SMB8J16CA-M3/52 require derating at elevated ambient temperatures?
Yes, SMB8J16CA-M3/52 must be derated above TA = 25 °C per Figure 2 in the Vishay datasheet: its peak pulse power decreases linearly to ~50 % at +100 °C ambient. This derating reflects junction temperature limits - since TJ max is 150 °C, the allowable power margin shrinks as ambient rises. Designers must apply this curve when sizing SMB8J16CA-M3/52 for under-hood or enclosed industrial environments.
SMB8J16CA-M3/52 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 (SMBJ)
SMB8J16CA-M3/52 FAQ
1.How can I place an order for SMB8J16CA-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB8J16CA-M3/52 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-M3/52 reliable?
The price and inventory of SMB8J16CA-M3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB8J16CA-M3/52 is usually 5 days.
3.What payment methods are accepted for SMB8J16CA-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB8J16CA-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB8J16CA-M3/52?
SMB8J16CA-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB8J16CA-M3/52 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-M3/52?
For technical support, including SMB8J16CA-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB8J16CA-M3/52 requirements.
6.How does Aetrix verify that SMB8J16CA-M3/52 is sourced from the original manufacturer or authorized distributors?
All SMB8J16CA-M3/52 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-M3/52 meets industry standards.
7.What is the process for return or replacement of SMB8J16CA-M3/52?
All SMB8J16CA-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB8J16CA-M3/52, 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-M3/52 part is unused and in its original packaging.
Return procedure for SMB8J16CA-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB8J16CA-M3/52 Tags
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