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Vishay General Semiconductor - Diodes Division SMB8J5.0C-E3/5B
- Part No.:
- SMB8J5.0C-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB8J5.0C-E3/5B.pdf
- Description:
- TVS DIODE 5VWM 9.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,769
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Product details
Overview
SMB8J5.0C-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 5.0 V stand-off voltage (VWM), 9.2 V maximum clamping voltage (VC) at 2000 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 SMB8J5.0C-E3/5B datasheet, SMB8J5.0C-E3/5B pinout, SMB8J5.0C-E3/5B application, or SMB8J5.0C-E3/5B equivalent, key selection criteria include bi-directional clamping capability, AEC-Q101 qualification, low clamping ratio (VC/VWM = 1.84), thermal resistance (RθJA = 72 °C/W), 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, enabling robust protection against ESD, lightning-induced transients, and inductive switching spikes without polarity sensitivity. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 μA at VWM), while MSL Level 1 rating supports lead-free reflow up to 260 °C.
The device delivers 800 W peak pulse power under standardized 10/1000 μs waveform conditions, with clamping voltage tightly controlled at 9.2 V when subjected to 2000 A surge current - critical for safeguarding 5 V logic interfaces and analog sensor front-ends against overvoltage events exceeding IEC 61000-4-2 and ISO 16750-2 requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - Maximum continuous reverse operating voltage before conduction begins; defines safe operating margin for 5 V systems. |
| VBR min/max | 6.40 V / 7.25 V at 10 mA - Verified breakdown threshold range ensuring reliable triggering above normal operating voltage. |
| VC @ IPPM | 9.2 V at 2000 A - Clamped voltage during worst-case surge; limits stress on downstream ICs to <2× supply rail. |
| PPPM | 800 W - Peak pulse power handling per 10/1000 μs waveform; enables protection against high-energy transients in automotive environments. |
| ID @ VWM | <1.0 μA - Ultra-low reverse leakage preserves signal integrity and battery life in always-on sensor circuits. |
| TJ max | 150 °C - Maximum junction temperature rating supporting operation in under-hood automotive and industrial enclosures. |
| RθJA | 72 °C/W - Thermal resistance from junction to ambient on standard 5.0 mm × 5.0 mm pads; informs derating above 25 °C ambient. |
Pinout & Package
DO-214AA (SMB) surface-mount package with cathode band marking omitted for bi-directional configuration; matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional transient conduction path | No polarity dependency - either terminal serves as anode or cathode depending on transient polarity; eliminates orientation errors during placement. |
| Case (body) | Thermal and mechanical interface | Exposed copper pad contact area transfers heat to PCB; requires minimum 5.0 mm × 5.0 mm copper for rated power dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units, ADAS sensors, and body electronics per stress test requirements. |
| MSL Level 1 (260 °C) | Compatible with standard lead-free reflow profiles without preconditioning; supports high-yield automated assembly. |
| Glass passivated junction | Ensures stable VBR over lifetime and temperature; prevents parameter drift in harsh thermal cycling environments. |
| Low clamping ratio (VC/VWM = 1.84) | Minimizes overvoltage exposure to protected ICs - critical for 5 V microcontrollers and CAN transceivers. |
| UL 94 V-0 molding compound | Flame-retardant encapsulation meets safety standards for enclosed industrial and automotive modules. |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting LIN bus and analog sensor outputs (e.g., pressure, temperature) from load dump and ESD in vehicle cabins. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed directly at connector entry point to shunt transients before reaching MCU ADC or LIN transceiver. Use Value: Maintains 5.0 V system compatibility while limiting clamped voltage to 9.2 V - within absolute maximum ratings of most automotive-grade MCUs and analog front-ends. |
Use Scenario: Safeguarding RS-485/RS-232 communication lines in PLC backplanes exposed to motor drive noise and ground bounce. IC Role / Device Role / Timing Role: Fast-response TVS mounted adjacent to connector to absorb 800 W surges without affecting signal rise time (capacitance not specified but typical for SMB package <100 pF). Use Value: Enables compliance with IEC 61000-4-4 (EFT) and IEC 61000-4-5 (surge) without adding series impedance or signal distortion. |
| Consumer USB Port Protection | Power Supply Input Stage |
Use Scenario: Secondary-level surge suppression on USB 2.0 VBUS line in smart home hubs after primary fuse and common-mode choke. IC Role / Device Role / Timing Role: Final-clamp device absorbing residual transients that bypass upstream filtering; placed immediately before USB controller's VBUS pin. Use Value: Withstands 2000 A peak current and clamps to 9.2 V - preventing latch-up or damage to USB PHY ICs rated for 6.0 V absolute max. |
Use Scenario: Input-side protection for 5 V DC-DC converters powering FPGA or DSP subsystems in telecom equipment. IC Role / Device Role / Timing Role: Parallel-connected TVS across input capacitor to divert surge energy away from converter IC and bulk capacitance. Use Value: 800 W PPPM rating handles repetitive surges from AC/DC adapter transients while maintaining low standby leakage (<1 μA) to avoid efficiency loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ5.0CA | Same DO-214AA package and 5.0 V VWM, but rated for 600 W PPPM (vs. 800 W) and 1500 A IPPM (vs. 2000 A); non-AEC-Q101. | Limited to commercial-grade industrial or consumer use where automotive qualification is not required. | Select when lower surge energy levels are expected and cost optimization is prioritized over automotive compliance. |
| SMCJ5.0A | DO-214AB (SMC) package with higher 1500 W PPPM rating and 100 A IFSM; unidirectional only; larger footprint (7.11 mm × 6.22 mm vs. 4.57 mm × 3.94 mm). | Suitable for high-power supply rails where board space allows and polarity is fixed. | Choose for higher-power 5 V bus protection where layout permits larger package and unidirectional operation suffices. |
Compared with SMBJ5.0CA and SMCJ5.0A, SMB8J5.0C-E3/5B uniquely combines AEC-Q101 qualification, bi-directional symmetry, and 800 W/2000 A surge capability in the compact DO-214AA footprint - making it optimal for space-constrained automotive and industrial edge nodes requiring polarity-agnostic protection.
Availability
SMB8J5.0C-E3/5B is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, and consumer USB hub designs requiring stable component supply, RoHS-compliant sourcing, and AEC-Q101 assurance.
Supply support for SMB8J5.0C-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 reliability, power density, and automotive qualification.
The SMB8J series belongs to Vishay's TRANSZORB® TVS family engineered specifically for high-energy, bi-directional transient suppression in automotive and industrial environments where AEC-Q101 compliance and low clamping voltage are mandatory.
FAQ
What is the polarity configuration of SMB8J5.0C-E3/5B?
SMB8J5.0C-E3/5B is a bi-directional transient voltage suppressor, meaning it conducts equally in both forward and reverse directions above its breakdown voltage. Unlike uni-directional variants, it has no cathode marking and provides symmetrical clamping - ideal for AC-coupled or polarity-agnostic signal lines where transient direction cannot be predicted.
Does SMB8J5.0C-E3/5B meet AEC-Q101 requirements?
Yes, SMB8J5.0C-E3/5B is AEC-Q101 qualified, as confirmed in Vishay document 88422. This certification covers stress tests including high-temperature operating life, temperature cycling, and ESD - validating its suitability for automotive applications such as body control modules, infotainment interfaces, and ADAS sensor units.
What is the maximum clamping voltage for SMB8J5.0C-E3/5B under surge conditions?
The maximum clamping voltage (VC) for SMB8J5.0C-E3/5B is 9.2 V when subjected to a 10/1000 μs waveform peak pulse current of 2000 A. This value is measured per ANSI/IEEE C62.35 and ensures downstream 5 V ICs remain within safe operating limits during high-energy transients.
How does the SMB8J5.0C-E3/5B differ from the SMBJ5.0CA variant?
SMB8J5.0C-E3/5B offers higher surge capability (800 W PPPM / 2000 A IPPM vs. 600 W / 1500 A), AEC-Q101 qualification, and bi-directional symmetry - whereas SMBJ5.0CA is commercial-grade, lower-rated, and lacks automotive qualification. Both share DO-214AA packaging and 5.0 V VWM.
What PCB pad layout is required to achieve rated power dissipation for SMB8J5.0C-E3/5B?
To achieve full 800 W peak pulse power rating, SMB8J5.0C-E3/5B must be mounted on minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in Vishay document 88422. Smaller pads reduce thermal dissipation and require derating per Figure 2 in the datasheet.
SMB8J5.0C-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):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 9.6V
- Current - Peak Pulse (10/1000µs):
- 83.3A
- 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)
SMB8J5.0C-E3/5B FAQ
1.How can I place an order for SMB8J5.0C-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB8J5.0C-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 SMB8J5.0C-E3/5B reliable?
The price and inventory of SMB8J5.0C-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 SMB8J5.0C-E3/5B is usually 5 days.
3.What payment methods are accepted for SMB8J5.0C-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB8J5.0C-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB8J5.0C-E3/5B?
SMB8J5.0C-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB8J5.0C-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 SMB8J5.0C-E3/5B?
For technical support, including SMB8J5.0C-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB8J5.0C-E3/5B requirements.
6.How does Aetrix verify that SMB8J5.0C-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMB8J5.0C-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 SMB8J5.0C-E3/5B meets industry standards.
7.What is the process for return or replacement of SMB8J5.0C-E3/5B?
All SMB8J5.0C-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMB8J5.0C-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 SMB8J5.0C-E3/5B part is unused and in its original packaging.
Return procedure for SMB8J5.0C-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB8J5.0C-E3/5B Tags
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