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Vishay General Semiconductor - Diodes Division SMB8J5.0C-E3/52
- Part No.:
- SMB8J5.0C-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB8J5.0C-E3/52.pdf
- Description:
- TVS DIODE 5VWM 9.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,691
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Product details
Overview
SMB8J5.0C-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 5.0 V stand-off voltage (VWM), 6.4–7.25 V breakdown voltage (VBR), 9.2 V 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-E3/52 datasheet, SMB8J5.0C-E3/52 pinout, SMB8J5.0C-E3/52 application, or SMB8J5.0C-E3/52 equivalent, key selection criteria include bi-directional clamping capability, AEC-Q101 qualification, low clamping ratio (VC/VBR ≈ 1.27), RoHS-compliant matte tin terminations, and MSL Level 1 reflow compatibility up to 260 °C.
Technical Context
This bi-directional TVS diode 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 VBR tolerance (±10% typical), while low incremental surge resistance supports fast energy dissipation under 10/1000 µs surges.
The device is rated for -55 °C to +150 °C operating junction temperature, with thermal resistance RθJA = 72 °C/W and RθJL = 20 °C/W - optimized for PCB pad layouts per Vishay's recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - maximum continuous reverse working voltage before clamping initiates; defines safe operating margin below breakdown. |
| VBR min/max | 6.40 V / 7.25 V at IT = 10 mA - tight breakdown window ensures predictable turn-on and minimal overvoltage exposure. |
| VC @ IPPM | 9.2 V at IPPM = 2000 A (10/1000 µs) - low clamping voltage limits downstream IC stress during worst-case surge events. |
| PPPM | 800 W - peak pulse power handling capacity determines survivability against standardized lightning/surge waveforms. |
| ID @ VWM | 2000 µA max - low leakage preserves signal integrity and power efficiency in always-on sensor or communication lines. |
| TJ max | 150 °C - enables operation in under-hood automotive environments and thermally constrained industrial enclosures. |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD22-A114. |
Pinout & Package
DO-214AA (SMB) surface-mount package: molded epoxy case meeting UL 94 V-0 flammability rating; matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; no polarity marking (bi-directional).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional transient conduction path | No functional distinction between terminals; either lead serves as input/output for bidirectional surge shunting. |
| Cathode band (absent) | Polarity indicator | Not present - confirms bi-directional configuration; device installs without orientation constraints on PCB. |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping | Enables single-device protection of AC-coupled or floating signal lines (e.g., RS-485, CAN, USB D+/D−) without polarity concerns. |
| AEC-Q101 qualification | Validates suitability for automotive applications including engine control modules, ADAS sensors, and body electronics. |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow processes without preconditioning or special handling requirements. |
| Glass-passivated junction | Ensures long-term parameter stability and resistance to humidity-induced degradation in harsh industrial environments. |
| Low clamping ratio (VC/VBR ≈ 1.27) | Minimizes overvoltage overshoot during clamping, reducing risk of latch-up or damage to protected 5 V logic interfaces. |
Applications
| Automotive Sensor Interface | Industrial RS-485 Bus |
|---|---|
|
Use Scenario: Protecting wheel speed, pressure, or temperature sensor outputs exposed to load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Bi-directional TVS clamp placed at connector entry point to divert surge energy before reaching analog front-end or ADC input. Use Value: Withstands 800 W surges and maintains <9.2 V clamping, preventing sensor signal corruption and microcontroller reset during 12 V system transients. |
Use Scenario: Shielding differential RS-485 transceivers in factory automation PLCs from ground loop surges and EFT bursts. IC Role / Device Role / Timing Role: Paired across A/B lines and line-to-ground to suppress common-mode and differential-mode transients simultaneously. Use Value: Symmetric 6.4–7.25 V VBR ensures balanced clamping on both data lines, preserving signal integrity and minimizing skew during surge events. |
| Consumer USB Port Protection | Smart Meter Power Line Interface |
|
Use Scenario: Safeguarding USB 2.0 D+ and D− lines in set-top boxes and smart displays against ESD and hot-plug transients. IC Role / Device Role / Timing Role: Low-capacitance bi-directional TVS placed immediately after USB connector to limit voltage before ESD protection diodes and PHY. Use Value: 2000 µA max leakage at 5.0 V VWM avoids loading high-impedance data lines, while 9.2 V VC prevents USB PHY latch-up. |
Use Scenario: Protecting AC mains monitoring circuitry in smart electricity meters from lightning-induced surges on current transformer inputs. IC Role / Device Role / Timing Role: Front-end clamp on isolated analog sensing path to absorb multi-kV transients before isolation amplifier or MCU ADC. Use Value: 150 °C TJ max and AEC-Q101 qualification ensure reliability in sealed, thermally limited meter housings operating continuously at elevated ambient temperatures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ5.0CA | Same DO-214AA package, identical VWM/VBR/VC specs, but rated for 600 W PPPM (vs. 800 W) and 1500 A IPPM (vs. 2000 A). | Limited to lower-energy surge environments (e.g., consumer USB, non-automotive I/O); not AEC-Q101 qualified. | Select when cost sensitivity outweighs automotive qualification or 800 W surge margin. |
| SMCJ5.0A | DO-214AB (SMC) package, same bi-directional topology, 5.0 V VWM, but higher 1500 W PPPM and 243 A IPPM - larger footprint and thermal mass. | Better suited for high-power industrial AC line protection where board space permits larger SMC package. | Choose when higher surge endurance is required and PCB layout accommodates 7.11 mm × 6.22 mm SMC outline. |
Compared with SMBJ5.0CA and SMCJ5.0A, SMB8J5.0C-E3/52 uniquely balances AEC-Q101 compliance, 800 W surge rating, and compact SMB footprint - making it optimal for space-constrained automotive and industrial edge nodes requiring certified reliability.
Availability
SMB8J5.0C-E3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial RS-485 networks, and smart meter power line monitoring requiring stable component supply and long-term lifecycle assurance.
Supply support for SMB8J5.0C-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The SMB8J series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-power-density, bi-directional transient suppression in automotive, industrial, and telecom infrastructure where AEC-Q101 validation and low clamping voltage are critical.
FAQ
What is the polarity configuration of SMB8J5.0C-E3/52?
SMB8J5.0C-E3/52 is a bi-directional TVS diode with symmetrical anode/cathode terminals and no polarity marking. This allows installation in either orientation on PCBs protecting AC-coupled or floating signals such as RS-485, CAN, or USB differential pairs - eliminating orientation errors during automated assembly.
Does SMB8J5.0C-E3/52 meet automotive qualification standards?
Yes, SMB8J5.0C-E3/52 is AEC-Q101 qualified, having passed stress tests including high-temperature reverse bias (HTRB), temperature cycling, and ESD per JESD22-A114. This certification validates its use in automotive powertrain, chassis, and ADAS systems where reliability under thermal and electrical stress is mandatory.
What is the maximum clamping voltage of SMB8J5.0C-E3/52 under surge conditions?
The maximum clamping voltage (VC) of SMB8J5.0C-E3/52 is 9.2 V when subjected to a 10/1000 µs waveform with peak pulse current (IPPM) of 2000 A. This value is measured per ANSI/IEEE C62.35 and ensures downstream 5 V logic circuits remain within safe overvoltage limits during standardized surge events.
How does the thermal performance of SMB8J5.0C-E3/52 support high-reliability designs?
SMB8J5.0C-E3/52 has RθJA = 72 °C/W and RθJL = 20 °C/W, enabling effective heat dissipation when mounted on Vishay-recommended 0.2" × 0.2" copper pads. Its 150 °C maximum junction temperature supports continuous operation in under-hood automotive and enclosed industrial environments without derating at full power.
Is SMB8J5.0C-E3/52 compatible with lead-free reflow processes?
Yes, SMB8J5.0C-E3/52 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, ensuring reliable solder joint formation in standard Pb-free assembly lines without moisture sensitivity concerns.
SMB8J5.0C-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):
- 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-E3/52 FAQ
1.How can I place an order for SMB8J5.0C-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB8J5.0C-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 SMB8J5.0C-E3/52 reliable?
The price and inventory of SMB8J5.0C-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 SMB8J5.0C-E3/52 is usually 5 days.
3.What payment methods are accepted for SMB8J5.0C-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB8J5.0C-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB8J5.0C-E3/52?
SMB8J5.0C-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB8J5.0C-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 SMB8J5.0C-E3/52?
For technical support, including SMB8J5.0C-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB8J5.0C-E3/52 requirements.
6.How does Aetrix verify that SMB8J5.0C-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMB8J5.0C-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 SMB8J5.0C-E3/52 meets industry standards.
7.What is the process for return or replacement of SMB8J5.0C-E3/52?
All SMB8J5.0C-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB8J5.0C-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 SMB8J5.0C-E3/52 part is unused and in its original packaging.
Return procedure for SMB8J5.0C-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB8J5.0C-E3/52 Tags
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Diodes Incorporated
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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