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Vishay General Semiconductor - Diodes Division SMB8J36CHE3/5B
- Part No.:
- SMB8J36CHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB8J36CHE3/5B.pdf
- Description:
- TVS DIODE 36VWM 64.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,694
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Product details
Overview
SMB8J36CHE3/5B from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AA (SMB) package, designed for high-energy surge protection on signal and power lines. It features 36 V stand-off voltage (VWM), 58.1 V maximum clamping voltage at 13.8 A peak pulse current, and 800 W peak pulse power rating with 10/1000 μs waveform. Used to protect automotive sensor interfaces and industrial I/O lines against ESD and load dump transients.
For engineers reviewing the SMB8J36CHE3/5B datasheet, SMB8J36CHE3/5B pinout, SMB8J36CHE3/5B application, or SMB8J36CHE3/5B equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance data, clamping behavior under surge, and direct replacement guidance for automotive-grade TVS selection.
Technical Context
This bi-directional TVS operates symmetrically across both polarities, enabling protection of AC-coupled or differential signal paths without polarity constraints. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 μA at 36 V), while the 72 °C/W junction-to-ambient thermal resistance supports reliable operation up to 150 °C junction temperature.
The device meets AEC-Q101 stress test requirements for automotive applications and is rated for 1000 W uni-directional / 800 W bi-directional peak pulse power. Its 13.8 A IPPM at 58.1 V VC provides predictable clamping during 10/1000 μs surges, with incremental surge resistance optimized for fast response and minimal voltage overshoot.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - Maximum continuous reverse operating voltage before conduction begins; defines safe working range for protected circuitry. |
| VBR min/max | 40.0 V / 44.2 V at 1 mA - Verified breakdown threshold ensures consistent turn-on behavior across production lots. |
| VC @ IPPM | 58.1 V at 13.8 A - Clamping voltage during 10/1000 μs surge; determines maximum voltage seen by downstream ICs. |
| PPPM | 800 W - Peak pulse power handling capability with 10/1000 μs waveform; defines transient energy absorption limit. |
| ID @ VWM | ≤1.0 μA - Reverse leakage current at stand-off voltage; critical for low-power sensor biasing and battery-backed systems. |
| TJ max | 150 °C - Maximum junction temperature; enables use in under-hood automotive environments and industrial enclosures. |
| RθJA | 72 °C/W - Junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads; informs PCB thermal design requirements. |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, bi-directional configuration with no polarity marking. Cathode band absent; terminals are symmetrical and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient current path | Bi-directional conduction allows identical clamping in both directions; no orientation required during placement. |
| Case (cathode band omitted) | Thermal and mechanical interface | Exposed metal slug provides primary heat dissipation path; requires minimum 5.0 mm × 5.0 mm copper pad per terminal. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD-HBM/MM, ensuring reliability in vehicle ECUs and ADAS sensors. |
| Glass passivated junction | Enables stable VBR over temperature and lifetime, with <1.0 μA leakage at VWM - essential for precision analog front-ends and low-power IoT nodes. |
| DO-214AA (SMB) package | Low-profile 4.57 mm × 3.94 mm footprint supports high-density PCB layouts and automated SMT assembly with J-STD-002-compliant tin plating. |
| 800 W bi-directional surge rating | Handles ISO 7637-2 Pulse 1, 2a, 3a/b and IEC 61000-4-5 Level 3 surges without degradation when mounted per recommended pad layout. |
| MSL Level 1 (260 °C) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns - eliminates bake requirements pre-assembly. |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
|
Use Scenario: Protecting CAN FD transceivers and LIN bus nodes from load dump and jump-start transients in engine control modules. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed directly at connector entry point to limit surge-induced overvoltage on PHY pins. Use Value: Maintains 36 V stand-off while clamping to 58.1 V during 13.8 A surges - preserves signal integrity and prevents latch-up in 5 V tolerant transceivers. |
Use Scenario: Safeguarding 24 V PLC digital input channels against field-wiring induced surges and relay coil flyback. IC Role / Device Role / Timing Role: Primary transient suppression element across input terminals, upstream of optocoupler or Schmitt trigger conditioning stage. Use Value: 800 W rating sustains repeated 10/1000 μs surges up to 13.8 A without parameter shift - extends field service life in factory automation equipment. |
| Telecom Line Interface | Consumer Power Adapter Input |
|
Use Scenario: Shielding Ethernet PHY magnetics and PoE injectors from lightning-induced common-mode transients on outdoor cabling. IC Role / Device Role / Timing Role: Common-mode TVS pair (two SMB8J36CHE3/5B) across line pairs to suppress differential and common-mode surges simultaneously. Use Value: Symmetrical bi-directional response ensures equal clamping on both line polarities - avoids DC bias shift and maintains Ethernet signal symmetry. |
Use Scenario: Secondary-side overvoltage suppression on 36 V output rails of USB-C PD adapters and LED drivers. IC Role / Device Role / Timing Role: Stand-off clamp protecting synchronous rectifier MOSFETs and secondary-side controller ICs from output capacitor discharge transients. Use Value: 58.1 V clamping voltage stays safely below 60 V absolute maximum ratings of common 60 V MOSFETs and controllers - prevents catastrophic failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36CA-E3/5B | Same DO-214AA package and 36 V VWM, but rated for 600 W PPPM (vs. 800 W); lower IPPM (10.3 A vs. 13.8 A). | Approved for commercial-grade industrial controls but not AEC-Q101 qualified - unsuitable for automotive under-hood use. | Select when cost sensitivity outweighs automotive qualification and higher surge margin is unnecessary. |
| SMCJ36CAHE3/5B | DO-214AB (SMC) package with same 36 V VWM and 1500 W PPPM; larger footprint (7.11 mm × 6.22 mm) and lower RθJA (30 °C/W). | Higher power handling supports repeated surge events in telecom base stations; requires PCB redesign due to larger pad layout. | Choose when system-level surge testing exceeds 800 W or thermal management demands lower junction rise. |
Compared with SMBJ36CA-E3/5B, SMB8J36CHE3/5B delivers +33 % peak power and AEC-Q101 compliance; versus SMCJ36CAHE3/5B, it trades 2.5× board area for compatibility with space-constrained automotive modules and legacy SMB footprints.
Availability
SMB8J36CHE3/5B is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, and telecom line interface designs requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMB8J36CHE3/5B 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, and protection devices with emphasis on reliability, automotive qualification, and high-power density packaging.
The SMB8J series targets AEC-Q101-compliant transient suppression for harsh-environment electronics, delivering enhanced surge robustness in the compact DO-214AA footprint for next-generation automotive and industrial control systems.
FAQ
What is the peak pulse power rating of SMB8J36CHE3/5B?
The SMB8J36CHE3/5B has a peak pulse power rating (PPPM) of 800 W with a 10/1000 μs waveform. This value is specified for bi-directional operation and reflects its ability to absorb transient energy without failure when mounted on 0.2" × 0.2" copper pads per terminal, as defined in Vishay document 88422.
Is SMB8J36CHE3/5B qualified for automotive applications?
Yes, SMB8J36CHE3/5B is AEC-Q101 qualified, as confirmed by the "HE3" suffix in its part number and explicitly stated in the Vishay datasheet revision 12-Nov-12. This qualification covers stress tests including high-temperature operating life, temperature cycling, and human-body model ESD, making it suitable for engine control units and ADAS sensor modules.
What is the clamping voltage of SMB8J36CHE3/5B at its rated surge current?
The SMB8J36CHE3/5B clamps to a maximum of 58.1 V at its peak pulse current (IPPM) of 13.8 A under a 10/1000 μs waveform. This clamping voltage is measured at the device terminals and defines the upper voltage limit imposed on protected circuitry during standardized surge events.
Does SMB8J36CHE3/5B have polarity markings?
No, SMB8J36CHE3/5B is a bi-directional TVS diode and carries no cathode band or polarity marking. Its symmetrical construction allows installation in either orientation on the PCB, simplifying layout and eliminating risk of reverse placement during automated assembly.
What is the maximum junction temperature for SMB8J36CHE3/5B?
The maximum junction temperature (TJ max) for SMB8J36CHE3/5B is 150 °C, as specified in the Vishay datasheet. This rating enables reliable operation in under-hood automotive environments and enclosed industrial enclosures where ambient temperatures may exceed 105 °C, provided thermal design meets recommended pad layout guidelines.
SMB8J36CHE3/5B 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):
- 36V
- Voltage - Breakdown (Min):
- 40V
- Voltage - Clamping (Max) @ Ipp:
- 64.3V
- Current - Peak Pulse (10/1000µs):
- 12.4A
- Power - Peak Pulse:
- 800W
- 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 (SMB)
SMB8J36CHE3/5B FAQ
1.How can I place an order for SMB8J36CHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB8J36CHE3/5B 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 SMB8J36CHE3/5B reliable?
The price and inventory of SMB8J36CHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB8J36CHE3/5B is usually 5 days.
3.What payment methods are accepted for SMB8J36CHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB8J36CHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB8J36CHE3/5B?
SMB8J36CHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB8J36CHE3/5B 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 SMB8J36CHE3/5B?
For technical support, including SMB8J36CHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB8J36CHE3/5B requirements.
6.How does Aetrix verify that SMB8J36CHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMB8J36CHE3/5B 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 SMB8J36CHE3/5B meets industry standards.
7.What is the process for return or replacement of SMB8J36CHE3/5B?
All SMB8J36CHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMB8J36CHE3/5B, 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 SMB8J36CHE3/5B part is unused and in its original packaging.
Return procedure for SMB8J36CHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB8J36CHE3/5B Tags
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