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Vishay General Semiconductor - Diodes Division SMBJ10AHE3/52
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- Part No.:
- SMBJ10AHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ10AHE3/52.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,020
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Product details
Overview
SMBJ10AHE3/52 from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping fast-rising ESD and surge transients on power and signal lines. It features 11.1 V minimum breakdown voltage (VBR), 17.0 V maximum clamping voltage (VC) at 35.3 A peak pulse current (IPPM), 600 W peak pulse power (10/1000 µs), and AEC-Q101 qualification for automotive-grade reliability - deployed in DC power rail protection of automotive ECUs and industrial sensor interfaces.
For engineers reviewing the SMBJ10AHE3/52 datasheet, SMBJ10AHE3/52 pinout, SMBJ10AHE3/52 application, or SMBJ10AHE3/52 equivalent, key selection criteria include unidirectional polarity, 10 V stand-off voltage (VWM), 5.0 µA max reverse leakage at VWM, thermal resistance RθJA = 100 °C/W, and compliance with UL 497B and AEC-Q101 for harsh-environment deployment.
Technical Context
This TVS diode operates as a voltage-clamping device triggered by overvoltage events exceeding its 10 V stand-off threshold, entering avalanche conduction to limit downstream voltage to ≤17.0 V during 600 W transient surges. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance.
Designed for automated SMT assembly, it uses matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, with MSL Level 1 rating (peak reflow 260 °C) and UL 94 V-0 molding compound. The cathode band denotes polarity; no marking on bidirectional variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC bias margin. |
| VBR (min/max) | 11.1 V / 12.3 V at 1.0 mA - Verified breakdown range ensuring consistent avalanche initiation across production lots. |
| VC @ IPPM | 17.0 V at 35.3 A - Clamped voltage under 600 W 10/1000 µs surge; determines protected circuit's maximum stress level. |
| IPPM | 35.3 A - Peak surge current capability with defined waveform; sets minimum trace width and PCB copper pad requirements. |
| PPPM | 600 W - Transient energy handling capacity per single event; enables protection against IEC 61000-4-5 Level 4 surges. |
| TJ max | +150 °C - Maximum junction temperature; supports operation in under-hood automotive environments. |
| RθJA | 100 °C/W - Thermal resistance junction-to-ambient on standard 0.2" × 0.2" copper pads; informs derating above 25 °C ambient. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with cathode band marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); terminals are matte tin-plated for lead-free soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to lower-potential side of protected line. | Must be tied to ground or return path when used for positive-rail clamping; defines unidirectional current flow direction. |
| Cathode | Current exit terminal in forward bias; marked with band; connected to higher-potential side (e.g., +12 V rail). | Reverse-biased during normal operation; avalanche conduction initiates here during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS sensors - supports 15-year lifecycle reliability. |
| 600 W peak pulse power (10/1000 µs) | Withstands IEC 61000-4-5 combination wave surges up to ±2 kV (open-circuit) without degradation. |
| Low clamping ratio (VC/VBR ≈ 1.53) | Minimizes voltage overshoot during transients - critical for protecting 12 V logic interfaces and CAN transceivers. |
| MSL Level 1, 260 °C peak reflow | Enables single-pass lead-free reflow without moisture-induced popcorning or delamination. |
| Glass passivated junction | Ensures stable VBR tolerance and long-term parameter stability under thermal cycling and humidity stress. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V supply inputs of automotive body control modules (BCM) against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and input filter capacitor to clamp transients before LDO regulators. Use Value: Limits voltage to ≤17.0 V during 35.3 A surges, preventing regulator latch-up and MCU brownout in AEC-Q100-compliant systems. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loop) of pressure/temperature sensors in factory automation. IC Role / Device Role / Timing Role: Mounted at sensor PCB edge to shunt induced lightning-induced surges on field wiring before signal conditioning op-amps. Use Value: 10 V VWM allows full 24 V system headroom; 17.0 V VC prevents op-amp input stage damage during 1 kV/500 A transients. |
| Telecom DC Power Input Protection | Consumer Device USB Port ESD Suppression |
|
Use Scenario: Front-end protection of PoE-powered network switches and base station RF modules against AC/DC adapter transients. IC Role / Device Role / Timing Role: Placed after primary fuse and before DC-DC converter input to absorb repetitive switching surges from upstream SMPS. Use Value: 600 W rating handles repeated 10/1000 µs events; 5.0 µA leakage at 10 V avoids standby current penalty in always-on equipment. |
Use Scenario: Secondary-level ESD protection on VBUS line of USB-C ports in laptops and docking stations. IC Role / Device Role / Timing Role: Positioned downstream of primary polymer PTC to clamp contact ESD (IEC 61000-4-2 ±15 kV) before USB controller IC. Use Value: Fast response time (<1 ps) and 17.0 V clamping prevent USB PHY latch-up; SMB package fits tight board space near connector. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10AHM3/52 | Halogen-free, RoHS-compliant variant with identical electrical specs and AEC-Q101 qualification. | No functional difference; selected where halogen-free material compliance is mandated (e.g., EU automotive Tier 1 programs). | Direct drop-in replacement if halogen-free requirement applies; same footprint, thermal, and electrical behavior. |
| SMBJ10A-E3/52 | Commercial-grade (non-AEC-Q101) version; same VWM, VBR, VC, and PPPM; lacks automotive qualification testing. | Suitable for non-automotive industrial or consumer use where extended temperature cycling and lifetime validation are not required. | Select when cost sensitivity outweighs automotive reliability needs; verify system-level qualification if used in safety-critical functions. |
Compared with SMBJ10AHE3/52, the HM3/52 variant adds halogen-free compliance without performance trade-offs, while the E3/52 version reduces cost by omitting AEC-Q101 stress testing - enabling tiered sourcing based on end-equipment qualification scope.
Availability
SMBJ10AHE3/52 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, telecom power supplies, and consumer USB power protection requiring stable component supply across multi-year production cycles.
Supply support for SMBJ10AHE3/52 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 high-reliability, automotive-qualified components.
The SMBJ series is engineered for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where failure due to voltage surges must be eliminated.
FAQ
What is the clamping voltage of SMBJ10AHE3/52 under a 600 W surge?
The SMBJ10AHE3/52 clamps to a maximum of 17.0 V when subjected to its rated 600 W peak pulse power (10/1000 µs waveform) at 35.3 A peak current. This value is measured and guaranteed per Vishay's datasheet (Document Number: 88392, Rev. 09-Jan-2024), and defines the upper voltage limit imposed on protected circuitry during transient events.
Is SMBJ10AHE3/52 suitable for automotive applications?
Yes, SMBJ10AHE3/52 is AEC-Q101 qualified and explicitly designated for automotive use - confirmed by the "HE3" suffix and documentation in Vishay's datasheet. It meets stress test requirements for temperature cycling, humidity, mechanical shock, and surge endurance, making it appropriate for engine control, body electronics, and ADAS subsystems where reliability is critical.
What does the "HE3" suffix mean in SMBJ10AHE3/52?
The "HE3" suffix in SMBJ10AHE3/52 indicates RoHS-compliant construction with AEC-Q101 qualification. "H" denotes AEC-Q101 qualification, "E3" specifies RoHS-compliant (lead-free) matte tin plating and packaging - distinguishing it from commercial-grade E3 or halogen-free HM3 variants. This suffix is defined in Vishay's ordering information table (page 3, Document 88392).
How does SMBJ10AHE3/52 differ from bidirectional SMBJ10CA variants?
SMBJ10AHE3/52 is unidirectional and features a cathode band for polarity-sensitive placement, whereas SMBJ10CA is bidirectional with no polarity marking and symmetrical clamping in both directions. The unidirectional SMBJ10AHE3/52 offers lower leakage (<5.0 µA at 10 V) and is preferred for DC rail protection; SMBJ10CA suits AC-coupled or differential signal lines where polarity reversal occurs.
What PCB layout guidance applies to SMBJ10AHE3/52 for optimal thermal performance?
For optimal thermal performance, Vishay specifies mounting SMBJ10AHE3/52 on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, per datasheet Figure 2 and thermal characteristics table. This pad area achieves the stated RθJA = 100 °C/W; reducing pad size increases junction temperature and requires derating of surge capability above 25 °C ambient.
SMBJ10AHE3/52 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):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 35.3A
- Power - Peak Pulse:
- 600W
- 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 (SMBJ)
SMBJ10AHE3/52 FAQ
1.How can I place an order for SMBJ10AHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ10AHE3/52 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 SMBJ10AHE3/52 reliable?
The price and inventory of SMBJ10AHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ10AHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ10AHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ10AHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ10AHE3/52?
SMBJ10AHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ10AHE3/52 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 SMBJ10AHE3/52?
For technical support, including SMBJ10AHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ10AHE3/52 requirements.
6.How does Aetrix verify that SMBJ10AHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ10AHE3/52 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 SMBJ10AHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ10AHE3/52?
All SMBJ10AHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ10AHE3/52, 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 SMBJ10AHE3/52 part is unused and in its original packaging.
Return procedure for SMBJ10AHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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