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Vishay General Semiconductor - Diodes Division SMB8J13C-E3/5B
- Part No.:
- SMB8J13C-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB8J13C-E3/5B.pdf
- Description:
- TVS DIODE 13VWM 23.8VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,310
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Product details
Overview
SMB8J13C-E3/5B 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 13 V stand-off voltage (VWM), 21.5 V maximum clamping voltage at 37.2 A peak pulse current, 800 W peak pulse power rating with 10/1000 μs waveform, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMB8J13C-E3/5B datasheet, SMB8J13C-E3/5B pinout, SMB8J13C-E3/5B application, or SMB8J13C-E3/5B equivalent, key selection criteria include clamping performance under 10/1000 μs transients, bi-directional symmetry for AC-coupled lines, thermal resistance (RθJA = 72 °C/W), and compliance with automotive reliability standards.
Technical Context
This bi-directional TVS operates symmetrically across both polarities, with breakdown voltage VBR min/max of 14.4 V / 15.9 V at 1 mA test current and reverse leakage ≤1.0 μA at 13 V stand-off. Its low clamping ratio (VC/VWM ≈ 1.65) ensures effective overvoltage limiting during ESD or lightning-induced surges.
The device uses glass-passivated junction technology and meets MSL level 1 per J-STD-020 with 260 °C reflow peak. Its thermal resistance from junction to ambient (72 °C/W) and junction-to-lead (20 °C/W) supports reliable operation up to 150 °C junction temperature under repetitive surge conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - Maximum continuous reverse operating voltage before significant leakage begins; defines safe working range for protected circuit. |
| VBR (min/max) | 14.4 V / 15.9 V at 1 mA - Confirmed breakdown threshold range; ensures predictable turn-on during overvoltage events. |
| VC @ IPPM | 21.5 V at 37.2 A - Clamped voltage during 10/1000 μs surge; limits downstream IC stress to safe levels. |
| PPPM | 800 W - Peak pulse power handling capability; determines survivability against standardized lightning/surge waveforms. |
| IPPM | 37.2 A - Peak surge current supported with 10/1000 μs waveform; directly tied to PCB pad layout and thermal design. |
| TJ max | 150 °C - Maximum junction temperature; enables operation in under-hood automotive environments. |
| RθJA | 72 °C/W - Thermal resistance junction-to-ambient; informs heatsinking requirements for sustained surge duty cycles. |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, bi-directional configuration with no polarity marking - terminals are symmetrical and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional surge path | No designated anode/cathode; either terminal accepts positive or negative transients equally - simplifies PCB layout for AC or differential lines. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and infotainment systems requiring extended temperature and life-cycle reliability. |
| Glass passivated chip junction | Enhances long-term stability and moisture resistance versus epoxy-passivated alternatives, critical for harsh-environment deployments. |
| MSL Level 1 (260 °C peak) | Enables standard lead-free reflow assembly without pre-baking; compatible with automated SMT lines using JEDEC-compliant profiles. |
| UL 94 V-0 molding compound | Self-extinguishing encapsulation material prevents flame propagation in safety-critical systems such as ADAS and body electronics. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (<1 ns rise time), improving protection margin for sensitive CMOS interfaces. |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting ABS wheel speed sensors exposed to load dump and ISO 7637-2 pulses in 12 V vehicle electrical systems. IC Role / Device Role / Timing Role: Bi-directional clamping element placed across sensor output line to ground, absorbing ±100 V transients without forward conduction. Use Value: Maintains signal integrity below 21.5 V clamping threshold while surviving 37.2 A surges - enabling direct interface with 3.3 V/5 V microcontrollers. |
Use Scenario: Safeguarding CANH/CANL differential pair in factory automation gateways subjected to EFT bursts and cable discharge events. IC Role / Device Role / Timing Role: Paired SMB8J13C-E3/5B devices (one per line) provide symmetrical surge suppression without distorting differential signaling. Use Value: 13 V VWM aligns with CAN bus common-mode range; 21.5 V VC preserves receiver input tolerance margins during 1 kV ESD events. |
| Consumer USB Port Protection | Telecom DSL Line Interface |
Use Scenario: Shielding USB 2.0 D+/D− lines in smart home hubs from human-body-model (HBM) ESD and hot-plug transients. IC Role / Device Role / Timing Role: Low-capacitance bi-directional TVS placed between data lines and chassis ground to shunt sub-100 ns ESD spikes. Use Value: Clamps to 21.5 V within nanoseconds - preventing latch-up in USB transceivers while adding <1 pF parasitic capacitance. |
Use Scenario: Front-end surge protection for ADSL/VDSL line drivers connected to outside plant wiring vulnerable to lightning induction. IC Role / Device Role / Timing Role: Primary protection stage before gas discharge tube (GDT) and secondary filtering, handling initial 800 W surge energy. Use Value: 800 W PPPM and 37.2 A IPPM absorb first-wave energy per ITU-T K.20/K.21 standards - reducing stress on downstream components. |
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 1000 W uni-directional only - not bi-directional. | Limited to DC-biased lines; unsuitable for AC or differential signals without external biasing network. | Select SMBJ13CA only when protecting unidirectional power rails where polarity is fixed and higher 1000 W rating is required. |
| SMCJ13CA | Same VWM and bi-directionality, but in larger DO-214AB (SMC) package with 1500 W PPPM and lower RθJA (35 °C/W). | Better thermal performance and surge margin, but requires 3× PCB area vs. SMB8J13C-E3/5B. | Choose SMCJ13CA when system-level surge testing exceeds 800 W or board space allows larger footprint for enhanced reliability. |
Compared with SMBJ13CA and SMCJ13CA, SMB8J13C-E3/5B uniquely balances bi-directional symmetry, compact SMB footprint, AEC-Q101 qualification, and 800 W surge capacity - making it optimal for space-constrained automotive and industrial differential interfaces.
Availability
SMB8J13C-E3/5B is available at Aetrix Electronics and suitable for automotive sensor modules, industrial CAN networks, consumer USB ports, and telecom DSL line interfaces requiring stable component supply and automotive-grade reliability.
Supply support for SMB8J13C-E3/5B 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, MOSFETs, and protection devices with emphasis on high-reliability and automotive-qualified solutions.
The SMB8J series belongs to Vishay's TRANSZORB® family of high-power-density TVS diodes, engineered specifically for robust transient suppression in automotive, industrial, and communications infrastructure where AEC-Q101 compliance and precise clamping are mandatory.
FAQ
What is the polarity configuration of SMB8J13C-E3/5B?
The SMB8J13C-E3/5B is a bi-directional TVS diode with symmetrical terminals - neither end is marked as anode or cathode. This allows it to clamp voltage transients of either polarity equally, making it ideal for AC-coupled or differential signal lines like CAN, RS-485, or USB D+/D− without requiring orientation-aware placement.
Does SMB8J13C-E3/5B meet automotive qualification standards?
Yes, SMB8J13C-E3/5B is AEC-Q101 qualified, confirming its suitability for automotive applications including engine control, body electronics, and ADAS subsystems. The qualification covers temperature cycling, humidity testing, mechanical shock, and surge endurance - all validated per the full AEC-Q101 stress test schedule.
What is the maximum clamping voltage of SMB8J13C-E3/5B under surge conditions?
The SMB8J13C-E3/5B clamps to a maximum of 21.5 V when subjected to its rated peak pulse current of 37.2 A with a 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees that downstream circuitry remains below destructive voltage thresholds during standardized surge events.
Can SMB8J13C-E3/5B be used in lead-free reflow processes?
Yes, SMB8J13C-E3/5B meets MSL Level 1 per J-STD-020 and supports peak reflow temperatures up to 260 °C. Its matte tin-plated leads comply with J-STD-002 and JESD 22-B102 solderability standards, ensuring reliable wetting and joint formation in standard lead-free SMT assembly lines.
How does the thermal resistance of SMB8J13C-E3/5B affect its surge handling capability?
SMB8J13C-E3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 72 °C/W. This means each watt of sustained power dissipation raises junction temperature by 72 °C - critical for determining duty cycle limits during repetitive surges. For single-event protection, thermal mass dominates; for repeated pulses, board copper area and airflow must be designed to maintain TJ ≤ 150 °C.
SMB8J13C-E3/5B 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):
- 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-E3/5B FAQ
1.How can I place an order for SMB8J13C-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB8J13C-E3/5B 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 SMB8J13C-E3/5B reliable?
The price and inventory of SMB8J13C-E3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB8J13C-E3/5B is usually 5 days.
3.What payment methods are accepted for SMB8J13C-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB8J13C-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB8J13C-E3/5B?
SMB8J13C-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB8J13C-E3/5B 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 SMB8J13C-E3/5B?
For technical support, including SMB8J13C-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB8J13C-E3/5B requirements.
6.How does Aetrix verify that SMB8J13C-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMB8J13C-E3/5B 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 SMB8J13C-E3/5B meets industry standards.
7.What is the process for return or replacement of SMB8J13C-E3/5B?
All SMB8J13C-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMB8J13C-E3/5B, 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 SMB8J13C-E3/5B part is unused and in its original packaging.
Return procedure for SMB8J13C-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB8J13C-E3/5B Tags
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