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Vishay General Semiconductor - Diodes Division SMB8J36C-E3/52
- Part No.:
- SMB8J36C-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB8J36C-E3/52.pdf
- Description:
- TVS DIODE 36VWM 64.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,820
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Product details
Overview
SMB8J36C-E3/52 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), 40.0–44.2 V breakdown voltage (VBR), 58.1 V clamping voltage (VC) at 13.8 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 SMB8J36C-E3/52 datasheet, SMB8J36C-E3/52 pinout, SMB8J36C-E3/52 application, or SMB8J36C-E3/52 equivalent, key selection criteria include bi-directional clamping capability, AEC-Q101 qualification, RoHS-compliant matte tin terminations, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This bi-directional TVS operates symmetrically across both polarities, enabling robust protection against voltage transients induced by inductive load switching, ESD, and lightning surges without polarity sensitivity. Its glass-passivated junction ensures stable VBR tolerance and low leakage (<1.0 µA at VWM), while thermal resistance (RθJA = 72 °C/W) supports operation up to TJ = 150 °C.
The device complies with ANSI/IEEE C62.35 standards for transient suppression and meets J-STD-020 MSL Level 1 (peak reflow 260 °C). Its 800 W PPPM rating is derated linearly above TA = 25 °C per Fig. 2, and it sustains non-repetitive surge currents per Fig. 3's 10/1000 µs waveform definition.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - maximum continuous reverse operating voltage before clamping begins; defines safe working range for protected circuitry. |
| VBR min/max | 40.0 V / 44.2 V at IT = 1.0 mA - tight breakdown window ensures predictable turn-on and minimal overvoltage exposure. |
| VC @ IPPM | 58.1 V at 13.8 A - clamping voltage under full-rated 10/1000 µs surge; limits downstream voltage stress during transient events. |
| PPPM | 800 W - peak pulse power handling capacity; determines survivability against standardized lightning/surge waveforms. |
| ID @ VWM | <1.0 µA - ultra-low reverse leakage preserves signal integrity and minimizes standby power loss in high-impedance nodes. |
| TJ max | 150 °C - maximum junction temperature; enables reliable operation in under-hood automotive and industrial environments. |
| Package | DO-214AA (SMB) - surface-mount outline with 0.220" × 0.155" footprint; optimized for automated pick-and-place and reflow soldering. |
Pinout & Package
DO-214AA (SMB) package: bi-directional construction with no polarity marking; symmetrical terminals suitable for AC-coupled or floating signal lines. Cathode band absent - device functions identically regardless of orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Bi-directional terminals conduct surge current in either direction when voltage exceeds ±VBR; no DC bias dependency. |
| Case (body) | Thermal and mechanical interface | Plastic-molded body provides UL 94 V-0 flammability rating; copper pad layout (0.2" × 0.2") required for rated PPPM performance. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, ADAS sensors, and infotainment I/O - meets stress test requirements for temperature cycling, HTRB, and ESD. |
| Glass passivated junction | Ensures long-term VBR stability and low parameter drift across temperature and lifetime; critical for mission-critical protection circuits. |
| MSL Level 1 (260 °C) | Compatible with standard lead-free reflow profiles without preconditioning; eliminates moisture-related popcorning risk during assembly. |
| Matte tin plated leads | Solderable per J-STD-002 and JESD 22-B102; JESD 201 Class 1A whisker resistance ensures reliability in high-vibration environments. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 Pulse 1/2a/5a); improves clamping response fidelity. |
Applications
| Automotive Sensor Interface | Industrial Digital I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and inductive switching spikes in 12 V vehicle systems. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed between signal line and ground, absorbing transients before they reach sensitive input stages. Use Value: Prevents latch-up or permanent damage to microcontrollers and ASICs by limiting voltage excursion to ≤58.1 V during 800 W surges. |
Use Scenario: Safeguarding PLC digital input modules exposed to relay coil flyback, motor drive noise, and field wiring ESD in factory automation. IC Role / Device Role / Timing Role: Standoff protector on 24 V DC input channels, conducting only during overvoltage events while remaining invisible to normal logic levels. Use Value: Enables >100,000 surge cycles without degradation due to low leakage (<1.0 µA) and stable VBR, reducing maintenance downtime. |
| Telecom Line Interface | Consumer USB/Display Port ESD Protection |
Use Scenario: Shielding RS-485/RS-422 differential pairs in base station backhaul equipment from lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Paired bi-directional TVS devices on each line (A/B) referenced to ground, providing symmetrical clamping without signal distortion. Use Value: Maintains signal integrity up to 10 Mbps by minimizing capacitance (typ. <100 pF at 0 V) and avoiding DC bias shift. |
Use Scenario: Front-end ESD protection for HDMI, USB 2.0, or DisplayPort connectors in laptops and docking stations. IC Role / Device Role / Timing Role: Low-capacitance transient suppressor placed between connector pins and PHY IC, shunting >8 kV HBM ESD pulses. Use Value: Complies with IEC 61000-4-2 Level 4 (±15 kV air, ±8 kV contact) while adding <0.5 pF parasitic capacitance per line. |
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-E3/52 | Same DO-214AA package and 36 V VWM, but rated for 600 W PPPM (vs. 800 W) and higher VC (64.5 V @ 12.4 A). | Limited to lower-energy surge environments (e.g., consumer electronics); not AEC-Q101 qualified. | Select when cost sensitivity outweighs automotive qualification or higher surge margin. |
| SMCJ36CA | DO-214AB (SMC) package - larger footprint (0.295" × 0.230"), higher PPPM (1500 W), same VWM/VBR/VC specs. | Used where PCB space allows and higher surge immunity is mandatory (e.g., power supply front-ends, solar inverters). | Choose for industrial power systems requiring >1 kV surge withstand; requires layout revision due to larger package. |
Compared with SMBJ36CA-E3/52, SMB8J36C-E3/52 delivers 33 % higher surge power rating and automotive qualification; versus SMCJ36CA, it trades 40 % smaller board area for 47 % lower PPPM - optimizing for space-constrained AEC-Q101 designs.
Availability
SMB8J36C-E3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial digital I/O protection, telecom line interfaces, and consumer USB/display port ESD protection requiring stable component supply and AEC-Q101 compliance.
Supply support for SMB8J36C-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, automotive qualification, and high-power density packaging.
The SMB8J series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-energy, bi-directional transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure applications.
FAQ
What is the clamping voltage of SMB8J36C-E3/52 and how is it measured?
The SMB8J36C-E3/52 has a maximum clamping voltage (VC) of 58.1 V, measured at 13.8 A peak pulse current (IPPM) using a standardized 10/1000 µs double-exponential surge waveform. This value reflects the actual voltage seen by downstream circuitry during worst-case transient events and is guaranteed per Vishay Document Number 88422, page 3.
Is SMB8J36C-E3/52 suitable for automotive applications?
Yes, SMB8J36C-E3/52 is AEC-Q101 qualified and explicitly listed in Vishay's automotive-grade product documentation. It meets stress test requirements for temperature cycling, high-temperature reverse bias (HTRB), and ESD, making it appropriate for engine control units, ADAS camera modules, and body electronics where reliability under thermal and electrical stress is critical.
What does the "C" in SMB8J36C-E3/52 signify?
The "C" suffix in SMB8J36C-E3/52 denotes bi-directional configuration - meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. This distinguishes it from uni-directional variants (e.g., SMB8J36A-E3/52) that clamp only in one polarity and require correct cathode orientation.
What is the maximum operating temperature for SMB8J36C-E3/52?
The SMB8J36C-E3/52 has a maximum junction temperature (TJ max) of 150 °C, as specified in the Vishay datasheet (Document Number 88422, page 2). This rating enables continuous operation in under-hood automotive environments and industrial enclosures where ambient temperatures exceed 105 °C, provided thermal design meets recommended pad layout guidelines.
Does SMB8J36C-E3/52 require special PCB layout considerations?
Yes - SMB8J36C-E3/52 must be mounted on minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve its rated 800 W peak pulse power. Smaller pads cause thermal derating and reduced surge capability. The DO-214AA package also requires adherence to Vishay's mounting pad layout (page 5) to ensure mechanical stability and solder joint reliability.
SMB8J36C-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):
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMB8J36C-E3/52 FAQ
1.How can I place an order for SMB8J36C-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB8J36C-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 SMB8J36C-E3/52 reliable?
The price and inventory of SMB8J36C-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 SMB8J36C-E3/52 is usually 5 days.
3.What payment methods are accepted for SMB8J36C-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB8J36C-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB8J36C-E3/52?
SMB8J36C-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB8J36C-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 SMB8J36C-E3/52?
For technical support, including SMB8J36C-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB8J36C-E3/52 requirements.
6.How does Aetrix verify that SMB8J36C-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMB8J36C-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 SMB8J36C-E3/52 meets industry standards.
7.What is the process for return or replacement of SMB8J36C-E3/52?
All SMB8J36C-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB8J36C-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 SMB8J36C-E3/52 part is unused and in its original packaging.
Return procedure for SMB8J36C-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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