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Vishay General Semiconductor - Diodes Division SMB8J13C-E3/52
- Part No.:
- SMB8J13C-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB8J13C-E3/52.pdf
- Description:
- TVS DIODE 13VWM 23.8VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMB8J13C-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 a 13 V stand-off voltage (VWM), 21.5 V maximum clamping voltage at 37.2 A peak pulse current (10/1000 µs), and 800 W peak pulse power dissipation - enabling robust ESD and lightning-induced transient suppression in automotive sensor interfaces and industrial I/O circuits.
For engineers reviewing the SMB8J13C-E3/52 datasheet, SMB8J13C-E3/52 pinout, SMB8J13C-E3/52 application, or SMB8J13C-E3/52 equivalent, key selection criteria include bi-directional clamping capability, AEC-Q101 qualification, MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This bi-directional TVS operates symmetrically across both polarities, with breakdown voltage (VBR) specified at 14.4–15.9 V (IT = 1 mA), ensuring consistent overvoltage clamping regardless of transient polarity. Its low incremental surge resistance and fast response time (<1 ns) enable effective suppression of ESD (IEC 61000-4-2), EFT (IEC 61000-4-4), and surge (IEC 61000-4-5) events.
Thermal performance is defined by RθJA = 72 °C/W and RθJL = 20 °C/W, supporting reliable operation up to TJ = 150 °C. The device is qualified to AEC-Q101 and meets UL 94 V-0 flammability requirements, confirming suitability for under-hood automotive environments and harsh industrial settings.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin for 12 V nominal systems. |
| VBR (min/max) | 14.4 V / 15.9 V at IT = 1 mA - Ensures predictable turn-on threshold across production lot and temperature range. |
| VC @ IPPM | 21.5 V at 37.2 A (10/1000 µs) - Clamping voltage seen by protected circuit during worst-case surge; limits stress on downstream ICs. |
| PPPM | 800 W - Peak pulse power handling capacity; determines survivability against 8/20 µs or 10/1000 µs transients per IEC standards. |
| ID @ VWM | 1.0 µA - Reverse leakage at stand-off voltage; negligible power loss and signal integrity impact in high-impedance interfaces. |
| TJ max. | 150 °C - Maximum junction temperature; enables use in engine control units and industrial motor drives without derating. |
| Package | DO-214AA (SMB) - Standardized surface-mount outline with 0.220" x 0.155" footprint; compatible with IPC-7351B land patterns. |
Pinout & Package
DO-214AA (SMB) package: bi-directional device with no polarity marking; symmetrical two-terminal construction. Cathode band absent - terminals are interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (1) | Surge current input path | Either terminal accepts transient energy; bidirectional conduction eliminates orientation concerns during placement. |
| Anode/Cathode (2) | Surge current return path | Completes low-impedance shunt path to ground or rail; requires minimum 5.0 mm × 5.0 mm copper pad per terminal for thermal and current handling. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including powertrain, body electronics, and ADAS sensor modules. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without baking or special handling. |
| Glass passivated junction | Enhances long-term reliability and moisture resistance versus epoxy-passivated alternatives. |
| RoHS-compliant (E3 suffix) | Meets EU Directive 2011/65/EU; matte tin-plated leads ensure solderability per J-STD-002 and JESD 22-B102. |
| UL 94 V-0 molding compound | Self-extinguishing encapsulation material required for safety-critical automotive and industrial enclosures. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bi-directional shunt clamp placed between signal line and ground/rail to divert surge energy away from sensitive interface ICs. Use Value: Maintains signal integrity during 10/1000 µs surges up to 37.2 A while limiting clamped voltage to 21.5 V - below absolute maximum ratings of most 3.3 V/5 V/12 V transceivers. |
Use Scenario: Safeguarding digital input/output channels in programmable logic controllers exposed to inductive switching transients from solenoids and contactors. IC Role / Device Role / Timing Role: Primary overvoltage protection element on field-side PCB traces, installed adjacent to connector entry points. Use Value: Withstands repeated 800 W surges without degradation, enabling >100,000 surge cycles per IEC 61000-4-5 Level 4 compliance testing. |
| Telecom Line Interface | Consumer Power Adapter ESD Protection |
|
Use Scenario: Shielding Ethernet PHYs and DSL line drivers from induced lightning surges on outdoor-facing ports. IC Role / Device Role / Timing Role: First-stage transient suppressor in multi-stage protection network, preceding GDT or polymer PTC devices. Use Value: Fast <1 ns response captures initial surge edge before secondary protectors activate, reducing total let-through energy to <10 mJ. |
Use Scenario: Adding secondary-level ESD immunity to USB-C and barrel jack inputs in AC/DC adapters rated ≤65 W. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF) bi-directional clamp placed between input terminals and ground to suppress ±8 kV contact discharge. Use Value: 1.0 µA leakage at 13 V ensures no measurable standby current increase; RoHS/E3 compliance supports global market access. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ13CA | Same VWM (13 V), identical DO-214AA package, but rated for 600 W PPPM (vs. 800 W for SMB8J13C-E3/52). | Limited to lower-energy transients; not recommended for ISO 7637-2 Pulse 5a load dump simulation. | Select SMB8J13C-E3/52 when full 800 W surge rating is required for automotive-grade robustness. |
| 1.5KE13CA | Higher power (1500 W), axial-leaded DO-201 package; VWM = 13 V, VC = 21.2 V, but larger footprint and manual assembly only. | Not suitable for high-density SMT layouts; lacks AEC-Q101 qualification and MSL Level 1 rating. | Choose SMB8J13C-E3/52 for automated production, space-constrained boards, and automotive qualification requirements. |
Compared with SMBJ13CA and 1.5KE13CA, SMB8J13C-E3/52 uniquely combines 800 W surge rating, bi-directional symmetry, AEC-Q101 qualification, and MSL Level 1 compatibility - making it the optimal choice for automotive and industrial SMT designs demanding both performance and process reliability.
Availability
SMB8J13C-E3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection circuits, and consumer power adapter designs requiring stable component supply and long-term lifecycle support.
Supply support for SMB8J13C-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-power-density, bi-directional transient suppression in space-constrained automotive and industrial applications.
FAQ
What is the clamping voltage of SMB8J13C-E3/52 under a 10/1000 µs surge?
The SMB8J13C-E3/52 exhibits a maximum clamping voltage (VC) of 21.5 V when subjected to its rated peak pulse current of 37.2 A using a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees that protected downstream components experience no more than 21.5 V during standardized surge events - critical for safeguarding 12 V system ICs. The SMB8J13C-E3/52 maintains this performance across its full operating temperature range.
Is SMB8J13C-E3/52 suitable for automotive applications?
Yes, SMB8J13C-E3/52 is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments. Its 150 °C maximum junction temperature, MSL Level 1 reflow compatibility, and validation against ISO 7637-2 load dump and IEC 61000-4-5 surge standards confirm suitability for engine control units, body control modules, and ADAS sensor interfaces. The SMB8J13C-E3/52 meets all electrical and mechanical requirements defined in the AEC-Q101 stress test plan.
How does SMB8J13C-E3/52 differ from uni-directional variants like SMB10J13A?
SMB8J13C-E3/52 is bi-directional with symmetrical clamping behavior on both polarities, while SMB10J13A is uni-directional and conducts only in reverse bias. The SMB8J13C-E3/52 has a lower peak pulse power rating (800 W vs. 1000 W) and higher leakage tolerance (1.0 µA vs. 1.0 µA same, but uni-directional allows forward conduction). SMB8J13C-E3/52 eliminates polarity marking and orientation errors in layout - a key advantage for differential or AC-coupled signal lines where transient polarity is unpredictable.
What is the thermal resistance of SMB8J13C-E3/52, and how does it affect PCB layout?
SMB8J13C-E3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 72 °C/W and junction-to-lead (RθJL) of 20 °C/W. To achieve rated power dissipation, the datasheet specifies mounting on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. Reducing pad size increases thermal impedance, derating surge capability - so PCB layout must strictly follow the recommended pad dimensions to maintain 800 W PPPM performance. The SMB8J13C-E3/52 thermal design is optimized for standard FR-4 with 2 oz copper.
Does SMB8J13C-E3/52 require orientation during PCB placement?
No, SMB8J13C-E3/52 is a bi-directional TVS diode with no polarity marking - the DO-214AA package has identical electrical behavior regardless of terminal orientation. Unlike uni-directional variants (e.g., SMB10J13A) that feature a cathode band, the SMB8J13C-E3/52 eliminates placement errors and simplifies automated assembly. This symmetry is confirmed in the Vishay datasheet Document Number 88422, Section "Polarity: … no marking on bi-directional types."
SMB8J13C-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):
- 13V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 23.8V
- Current - Peak Pulse (10/1000µs):
- 33.6A
- 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)
SMB8J13C-E3/52 FAQ
1.How can I place an order for SMB8J13C-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB8J13C-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 SMB8J13C-E3/52 reliable?
The price and inventory of SMB8J13C-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 SMB8J13C-E3/52 is usually 5 days.
3.What payment methods are accepted for SMB8J13C-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB8J13C-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB8J13C-E3/52?
SMB8J13C-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB8J13C-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 SMB8J13C-E3/52?
For technical support, including SMB8J13C-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB8J13C-E3/52 requirements.
6.How does Aetrix verify that SMB8J13C-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMB8J13C-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 SMB8J13C-E3/52 meets industry standards.
7.What is the process for return or replacement of SMB8J13C-E3/52?
All SMB8J13C-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB8J13C-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 SMB8J13C-E3/52 part is unused and in its original packaging.
Return procedure for SMB8J13C-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB8J13C-E3/52 Tags
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