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Vishay General Semiconductor - Diodes Division SMB10J8.0AHE3/52
- Part No.:
- SMB10J8.0AHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J8.0AHE3/52.pdf
- Description:
- TVS DIODE 8VWM 13.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,025
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Product details
Overview
SMB10J8.0AHE3/52 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for high-energy surge protection on DC power rails and signal lines. It features a 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 - suitable for automotive ECU power input protection per ISO 7637-2.
For engineers reviewing the SMB10J8.0AHE3/52 datasheet, SMB10J8.0AHE3/52 pinout, SMB10J8.0AHE3/52 application, or SMB10J8.0AHE3/52 equivalent, key selection criteria include clamping performance under 50 A surge, AEC-Q101 qualification status, thermal resistance (RθJA = 72 °C/W), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode uses a glass-passivated silicon junction to achieve fast response time (<1 ns) and low incremental surge resistance, enabling effective suppression of inductive switching transients and ESD events. Its unidirectional polarity provides forward conduction path during overvoltage while maintaining low leakage (<1.0 µA at 8.0 V).
The device operates across -55 °C to +150 °C junction temperature range and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. AEC-Q101 qualification confirms suitability for automotive under-hood applications requiring robust reliability under thermal cycling and mechanical stress.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.0 V - maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin for 9–12 V automotive systems |
| VBR min/max | 8.89 V / 9.83 V at 1.0 mA - breakdown threshold tolerance ensures consistent turn-on across production lots |
| VC @ IPPM | 13.6 V at 50 A - clamping voltage limits downstream IC stress during 10/1000 µs surge; enables <5 V headroom for 12 V nominal rails |
| PPPM | 1000 W - peak pulse power handling with 10/1000 µs waveform supports ISO 7637-2 Pulse 1 & 2a compliance |
| ID @ VWM | ≤1.0 µA - ultra-low reverse leakage preserves battery life in always-on automotive modules |
| TJ max | +150 °C - extended junction temperature rating allows placement near heat sources in engine control units |
| RθJA | 72 °C/W - thermal resistance measured on 0.2" × 0.2" copper pads; informs board-level thermal design for sustained surge duty |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, molded plastic case with matte tin-plated leads; cathode indicated by color band on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Surge current sink node | Connected to protected line (e.g., battery rail); conducts transient energy to ground when V > VBR |
| Anode (unmarked end) | Reference/return path | Typically tied to system ground; completes conduction path during clamping event |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive use including temperature cycling, humidity bias, and mechanical shock per test plan |
| Glass passivated junction | Enables stable VBR and low leakage over lifetime; resists moisture ingress and contamination in harsh environments |
| MSL Level 1 rating | Supports standard SMT reflow without baking; peak temperature up to 260 °C compatible with lead-free processes |
| Low profile SMB package | Height ≤0.086" (2.20 mm) enables compact layout in space-constrained ECUs and ADAS modules |
| RoHS-compliant & halogen-free option | HE3 suffix denotes RoHS-compliant construction; HM3 variant adds halogen-free molding compound for emissions compliance |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Clamp |
|---|---|
|
Use Scenario: Protecting 12 V power input of engine control unit against load dump and alternator transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and DC-DC converter input to clamp surges above 13.6 V. Use Value: Limits voltage seen by downstream regulator to safe level, preventing latch-up or permanent damage during 35 V/100 ms load dump events. |
Use Scenario: Shielding analog output of pressure sensor in factory automation PLC I/O module from ESD and cable discharge. IC Role / Device Role / Timing Role: TVS connected between sensor signal line and ground to shunt 8 kV HBM ESD pulses within nanoseconds. Use Value: Maintains signal integrity below 10 mV offset shift during 15 kV air discharge, preserving 12-bit ADC accuracy. |
| Consumer USB Port Surge Suppression | Telecom Base Station DC Feed Protection |
|
Use Scenario: Safeguarding USB 2.0 VBUS line in portable medical monitor against hot-plug induced transients and nearby lightning-induced coupling. IC Role / Device Role / Timing Role: Unidirectional TVS installed inline with VBUS to clamp overshoots exceeding 5.5 V while passing 500 mA charging current. Use Value: Prevents USB controller reset during 1 kV EFT bursts, ensuring uninterrupted data streaming during clinical operation. |
Use Scenario: Securing 48 V DC feed to remote radio head in outdoor telecom base station exposed to induced surges from nearby lightning strikes. IC Role / Device Role / Timing Role: TVS mounted at power entry point to limit voltage excursion to ≤60 V during 10/1000 µs 1000 W surge events. Use Value: Enables continued RF transmission during surge by limiting voltage stress on GaN PA bias circuitry to <10% derating margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0A-E3/52 | Same SMB package and VWM, but rated for 600 W PPPM (vs. 1000 W); lower IPPM (30 A vs. 50 A) | Limited to lower-energy transients (e.g., IEC 61000-4-5 Level 2); not recommended for ISO 7637-2 Pulse 5a | Select SMB10J8.0AHE3/52 when full 1000 W surge immunity is required in automotive or industrial settings |
| SMCJ8.0AHE3/52 | Same electrical specs but in larger SMC (DO-214AB) package; RθJA = 40 °C/W (vs. 72 °C/W) | Better thermal performance allows higher duty-cycle surge handling; requires 2.5× PCB area vs. SMB | Choose SMB10J8.0AHE3/52 where board space is constrained but 1000 W single-pulse capability remains essential |
Compared with SMBJ8.0A-E3/52 and SMCJ8.0AHE3/52, SMB10J8.0AHE3/52 uniquely balances 1000 W surge rating, AEC-Q101 qualification, and SMB footprint - making it optimal for space-limited automotive modules needing full ISO 7637-2 compliance without thermal derating penalties.
Availability
SMB10J8.0AHE3/52 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom power feed circuits requiring stable component supply with AEC-Q101 traceability and RoHS compliance.
Supply support for SMB10J8.0AHE3/52 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 and application-specific validation.
The SMB10J series is engineered for high-power transient suppression in automotive and industrial environments, prioritizing AEC-Q101 qualification, low clamping voltage, and robust surge endurance in compact surface-mount packages.
FAQ
What is the clamping voltage of SMB10J8.0AHE3/52 at its rated peak pulse current?
The SMB10J8.0AHE3/52 has a maximum clamping voltage (VC) of 13.6 V when subjected to its rated peak pulse current (IPPM) of 50 A using a 10/1000 µs waveform. This value is guaranteed per the Vishay datasheet (Document Number: 88422, Revision: 09-Jan-2024) and reflects worst-case performance under standardized surge conditions. The SMB10J8.0AHE3/52 maintains this clamping level across its operational temperature range, supporting predictable overvoltage protection in automotive and industrial designs.
Is SMB10J8.0AHE3/52 qualified for automotive applications?
Yes, SMB10J8.0AHE3/52 is AEC-Q101 qualified, as confirmed by Vishay's official documentation and marked by the "HE3" suffix denoting RoHS-compliant and AEC-Q101 qualified construction. This qualification covers stress tests including temperature cycling, high-temperature operating life, and mechanical shock - validating its use in engine control units, body electronics, and ADAS modules. The SMB10J8.0AHE3/52 meets automotive-grade reliability requirements without requiring additional qualification by the end user.
What is the standoff voltage (VWM) and why is it critical for SMB10J8.0AHE3/52 selection?
The standoff voltage (VWM) of SMB10J8.0AHE3/52 is 8.0 V - the maximum DC or continuous reverse voltage the device can withstand without entering breakdown. This parameter is critical because it must exceed the normal operating voltage of the protected line (e.g., 7.5–8.5 V for a 9 V nominal rail) while leaving sufficient margin below the clamping voltage (13.6 V). Selecting SMB10J8.0AHE3/52 ensures reliable blocking during normal operation and precise turn-on during transients, avoiding false triggering or leakage-related power loss.
How does the SMB package of SMB10J8.0AHE3/52 impact PCB layout and thermal performance?
The SMB (DO-214AA) package of SMB10J8.0AHE3/52 measures 3.94 mm × 2.20 mm × 2.30 mm and requires minimum 5.0 mm × 5.0 mm copper pads per terminal for rated power dissipation. Its RθJA of 72 °C/W means that at 1000 W peak pulse, junction temperature rise is limited to ~72 °C above ambient for short durations - but sustained surges require careful thermal relief design. The SMB10J8.0AHE3/52's low profile (≤2.20 mm height) supports dense layouts in ECU modules where vertical clearance is constrained.
Can SMB10J8.0AHE3/52 be used in bidirectional configurations?
No, SMB10J8.0AHE3/52 is a unidirectional TVS diode, as indicated by its part number suffix "A" and confirmed in the Vishay datasheet's unidirectional table. It conducts only in reverse bias above VBR and blocks forward current except for its specified forward surge rating (IFSM = 100 A). For bidirectional protection (e.g., AC lines or differential signals), the SMB8J8.0CA variant - with "CA" suffix and symmetric breakdown - must be selected instead. Using SMB10J8.0AHE3/52 in bidirectional roles risks forward conduction failure or inadequate clamping.
SMB10J8.0AHE3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 8V
- Voltage - Breakdown (Min):
- 8.89V
- Voltage - Clamping (Max) @ Ipp:
- 13.6V
- Current - Peak Pulse (10/1000µs):
- 73.5A
- 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)
SMB10J8.0AHE3/52 FAQ
1.How can I place an order for SMB10J8.0AHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J8.0AHE3/52 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 SMB10J8.0AHE3/52 reliable?
The price and inventory of SMB10J8.0AHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J8.0AHE3/52 is usually 5 days.
3.What payment methods are accepted for SMB10J8.0AHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J8.0AHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J8.0AHE3/52?
SMB10J8.0AHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J8.0AHE3/52 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 SMB10J8.0AHE3/52?
For technical support, including SMB10J8.0AHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J8.0AHE3/52 requirements.
6.How does Aetrix verify that SMB10J8.0AHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMB10J8.0AHE3/52 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 SMB10J8.0AHE3/52 meets industry standards.
7.What is the process for return or replacement of SMB10J8.0AHE3/52?
All SMB10J8.0AHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J8.0AHE3/52, 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 SMB10J8.0AHE3/52 part is unused and in its original packaging.
Return procedure for SMB10J8.0AHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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