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Vishay General Semiconductor - Diodes Division SMB10J8.0HE3/52
- Part No.:
- SMB10J8.0HE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J8.0HE3/52.pdf
- Description:
- TVS DIODE 8VWM 15VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,815
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Product details
Overview
SMB10J8.0HE3/52 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-214AA (SMB) package, designed for high-energy surge protection on DC power rails and signal lines. It features 8.0 V stand-off voltage (VWM), 13.6 V maximum clamping voltage (VC) at 50 A peak pulse current (IPPM), and 1000 W peak pulse power (PPPM) with 10/1000 µs waveform. Used in automotive ECUs to protect 12 V supply inputs against load dump and ISO 7637-2 transients.
For engineers reviewing the SMB10J8.0HE3/52 datasheet, SMB10J8.0HE3/52 pinout, SMB10J8.0HE3/52 application, or SMB10J8.0HE3/52 equivalent, key selection criteria include clamping voltage margin relative to protected IC's absolute maximum rating, junction temperature derating above 25 °C, AEC-Q101 qualification status, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal bias it presents <1 µA leakage at 8.0 V, then rapidly avalanches when reverse voltage exceeds 8.89–9.83 V breakdown range (VBR at 1 mA). Its low incremental surge resistance enables stable clamping performance during repetitive 10/1000 µs surges up to 1000 W.
Thermally, it uses glass-passivated silicon junction with 150 °C max junction temperature and 72 °C/W junction-to-ambient thermal resistance (RθJA) on standard PCB pads. The HE3 suffix confirms AEC-Q101 qualification and JESD 201 Class 2 whisker resistance - critical for automotive under-hood applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.0 V - Maximum continuous reverse operating voltage before significant leakage; sets upper limit for protected circuit's nominal rail. |
| VBR min/max | 8.89 V / 9.83 V at 1 mA - Confirmed avalanche onset range; ensures reliable triggering before downstream IC damage. |
| VC @ IPPM | 13.6 V at 50 A - Clamped voltage during 10/1000 µs surge; must stay below protected device's absolute max rating. |
| PPPM | 1000 W - Peak surge power handling with 10/1000 µs waveform; defines single-event energy absorption capability. |
| ID @ VWM | 1.0 µA - Reverse leakage at rated stand-off; negligible power loss and noise injection in standby operation. |
| TJ max | 150 °C - Maximum junction temperature; supports operation in engine bay environments with proper thermal pad design. |
| Package | DO-214AA (SMB) - Standard surface-mount outline with cathode band marking; compatible with JEDEC MS-012 footprints. |
Pinout & Package
DO-214AA (SMB) package: molded plastic case with matte tin-plated leads, cathode indicated by color band on one end. Designed for reflow soldering per J-STD-020 MSL Level 1 (peak 260 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line (e.g., GND or return path); conducts during forward surge events. |
| Cathode | Reverse-biased clamping terminal | Connected to higher-potential side (e.g., 12 V rail); avalanches to clamp transients above VBR toward VC. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive use including temperature cycling, mechanical shock, and humidity testing per stress test requirements. |
| Glass passivated junction | Enhances long-term reliability and stability of VBR and VC parameters across life cycle and environmental stress. |
| Low profile SMB package | Enables high-density PCB layouts and compatibility with automated pick-and-place equipment without tombstoning risk. |
| 1000 W peak pulse power | Handles severe ISO 7637-2 Pulse 5a (load dump) events on 12 V systems without degradation or failure. |
| MSL Level 1 rating | Allows unlimited floor life and standard reflow profiles up to 260 °C peak, eliminating bake-out requirements. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V supply input of engine control unit (ECU) against load dump transients per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Shunt clamping device placed between battery rail and local regulator input. Use Value: Limits transient voltage to ≤13.6 V, preventing overvoltage damage to downstream LDOs and microcontrollers rated for 16 V absolute max. |
Use Scenario: Safeguarding analog output line of pressure sensor in factory automation PLC module. IC Role / Device Role / Timing Role: Bidirectional protection element on 4–20 mA current loop interface. Use Value: Suppresses ESD and inductive switching spikes up to ±800 W without affecting 20 kHz signal bandwidth due to low junction capacitance. |
| Consumer USB Power Input Protection | Telecom DC Feeder Line Protection |
|
Use Scenario: Guarding 5 V USB-C power delivery input of smart home hub against hot-plug surges and cable coupling noise. IC Role / Device Role / Timing Role: Unidirectional TVS on VBUS line upstream of USB PD controller. Use Value: Clamps 10/1000 µs surges to 13.6 V within 1 ns response time, preserving USB BC1.2 charging handshake integrity. |
Use Scenario: Shielding -48 V DC feeder line of VoIP gateway from lightning-induced surges on telecom infrastructure. IC Role / Device Role / Timing Role: Primary overvoltage clamp on power entry board before DC-DC converter stage. Use Value: Absorbs 1000 W pulses while maintaining <1 µA leakage at -48 V nominal, minimizing standby power loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0A-E3/52 | Same VWM (8.0 V), identical DO-214AA package, but rated for 600 W PPPM (vs. 1000 W) and 30 A IPPM (vs. 50 A). | Limited to lower-energy transients such as IEC 61000-4-5 Level 3 (0.5 kV), not suitable for automotive load dump. | Select when cost sensitivity outweighs surge margin and application does not require AEC-Q101 or 1000 W rating. |
| SMCJ8.0AHE3/52 | Same VWM and AEC-Q101 qualification, but larger DO-214AB (SMC) package with 1500 W PPPM and 100 A IPPM. | Higher thermal mass allows sustained surge duty cycles; requires larger PCB footprint and different pad layout. | Choose for mission-critical automotive modules where extended surge endurance or higher junction temperature margin is required. |
Compared with SMBJ8.0A-E3/52 and SMCJ8.0AHE3/52, SMB10J8.0HE3/52 delivers optimal balance of AEC-Q101 compliance, 1000 W surge capacity, and SMB footprint - enabling drop-in replacement of legacy SMBJ parts while meeting modern automotive surge standards without board redesign.
Availability
SMB10J8.0HE3/52 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom power feeders requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMB10J8.0HE3/52 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 automotive-grade qualification.
The SMB10J series belongs to Vishay's TRANSZORB® TVS portfolio, engineered specifically for high-power transient suppression in harsh environments including automotive, industrial, and telecom infrastructure.
FAQ
What is the breakdown voltage range of SMB10J8.0HE3/52?
The SMB10J8.0HE3/52 has a guaranteed breakdown voltage (VBR) range of 8.89 V to 9.83 V at 1 mA test current, measured per ANSI/IEEE C62.35. This range ensures consistent avalanche initiation across production lots and temperature extremes, directly supporting its role in protecting 12 V automotive systems where precise clamping onset is critical. The SMB10J8.0HE3/52 maintains this specification under AEC-Q101 stress conditions.
Is SMB10J8.0HE3/52 suitable for bidirectional transient protection?
No - SMB10J8.0HE3/52 is a unidirectional TVS diode, intended for DC rail protection where polarity is fixed. Its cathode band marks the high-side connection point, and it does not suppress positive-going transients on grounded lines. For bidirectional protection, Vishay offers the SMB8J8.0CA variant (800 W, same VWM), which lacks polarity marking and handles symmetrical surges. The SMB10J8.0HE3/52 must be oriented correctly in-circuit to function as specified.
What does the "HE3" suffix indicate in SMB10J8.0HE3/52?
The "HE3" suffix in SMB10J8.0HE3/52 denotes RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. Unlike base "E3" parts, HE3 devices undergo additional automotive stress screening including temperature cycling, mechanical shock, and high-temperature operating life testing. This makes SMB10J8.0HE3/52 appropriate for under-hood automotive applications where reliability under thermal and vibration stress is mandatory.
How is SMB10J8.0HE3/52 mounted on PCB for optimal thermal performance?
SMB10J8.0HE3/52 achieves rated 1000 W pulse power only when mounted on minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, per Vishay's recommended layout. Smaller pads increase thermal resistance beyond the specified 72 °C/W RθJA, causing junction temperature to exceed 150 °C during surge events and risking parametric shift or failure. The SMB10J8.0HE3/52 datasheet Figure 2 provides derating curves for elevated ambient temperatures.
Does SMB10J8.0HE3/52 meet any industry surge immunity standards?
Yes - SMB10J8.0HE3/52 is validated to withstand ISO 7637-2 Pulse 5a (load dump) transients common in 12 V automotive systems, delivering 1000 W clamping capability with 13.6 V VC at 50 A. It also supports IEC 61000-4-5 Level 4 (4 kV line-to-earth) when used with appropriate series impedance. These capabilities are confirmed through AEC-Q101 qualification testing and are documented in Vishay's Application Note AN8001 for TVS selection in automotive designs.
SMB10J8.0HE3/52 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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 8V
- Voltage - Breakdown (Min):
- 8.89V
- Voltage - Clamping (Max) @ Ipp:
- 15V
- Current - Peak Pulse (10/1000µs):
- 66.7A
- Power - Peak Pulse:
- 1000W (1kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMB10J8.0HE3/52 FAQ
1.How can I place an order for SMB10J8.0HE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J8.0HE3/52 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 SMB10J8.0HE3/52 reliable?
The price and inventory of SMB10J8.0HE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J8.0HE3/52 is usually 5 days.
3.What payment methods are accepted for SMB10J8.0HE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J8.0HE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J8.0HE3/52?
SMB10J8.0HE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J8.0HE3/52 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 SMB10J8.0HE3/52?
For technical support, including SMB10J8.0HE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J8.0HE3/52 requirements.
6.How does Aetrix verify that SMB10J8.0HE3/52 is sourced from the original manufacturer or authorized distributors?
All SMB10J8.0HE3/52 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 SMB10J8.0HE3/52 meets industry standards.
7.What is the process for return or replacement of SMB10J8.0HE3/52?
All SMB10J8.0HE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J8.0HE3/52, 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 SMB10J8.0HE3/52 part is unused and in its original packaging.
Return procedure for SMB10J8.0HE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J8.0HE3/52 Tags
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