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Vishay General Semiconductor - Diodes Division SMB10J26HE3/52
- Part No.:
- SMB10J26HE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J26HE3/52.pdf
- Description:
- TVS DIODE 26VWM 46.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,891
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Product details
Overview
SMB10J26HE3/52 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 a 26 V stand-off voltage (VWM), 42.1 V maximum clamping voltage at 23.8 A peak pulse current (10/1000 µs), and 1000 W peak pulse power rating. Used to protect automotive ECUs, industrial I/O modules, and sensor interfaces against ISO 7637-2 load dump and EFT transients.
For engineers reviewing the SMB10J26HE3/52 datasheet, SMB10J26HE3/52 pinout, SMB10J26HE3/52 application, or SMB10J26HE3/52 equivalent, key selection criteria include clamping performance under 10/1000 µs surge, AEC-Q101 qualification status, thermal resistance (RθJA = 72 °C/W), and RoHS-compliant matte tin plating with JESD 201 Class 2 whisker resistance.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: it remains high-impedance below 26 V (VWM), breaks down between 28.9 V and 31.9 V (VBR at 1 mA), and clamps transients to ≤42.1 V at 23.8 A. Its glass-passivated junction ensures stable breakdown and low leakage (<1 µA at VWM).
Designed for surface-mount placement on PCBs with 5.0 mm × 5.0 mm copper pads per terminal, it meets MSL Level 1 (260 °C reflow peak) and delivers 100 W steady-state power dissipation. 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 | 26 V - Maximum continuous reverse operating voltage before conduction begins; defines safe DC rail margin. |
| VBR (min/max) | 28.9 V / 31.9 V at 1 mA - Confirmed breakdown range ensures reliable turn-on during overvoltage events. |
| VC @ IPPM | 42.1 V at 23.8 A (10/1000 µs) - Clamping voltage limits downstream IC stress during surge conditions. |
| PPPM | 1000 W - Peak pulse power handling capacity for standardized 10/1000 µs waveform compliance. |
| RθJA | 72 °C/W - Junction-to-ambient thermal resistance determines required PCB copper area for thermal management. |
| TJ max | 150 °C - Maximum junction temperature enables operation in under-hood automotive environments. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD. |
Pinout & Package
DO-214AA (SMB) surface-mount package: cathode indicated by black band on one end; anode and cathode terminals are axially aligned along the body length. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); recommended pad layout uses 5.0 mm × 5.0 mm copper areas per terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to ground or low-voltage return path; completes shunt path during transient conduction. |
| Cathode | Protected line input | Connected to the line being protected (e.g., 24 V supply rail); conducts surge current to anode when VIN exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Uni-directional clamping architecture | Enables precise DC rail protection without forward conduction during normal operation. |
| Glass passivated junction | Ensures stable VBR tolerance and low leakage (<1 µA) across temperature and lifetime. |
| AEC-Q101 qualification (HE3 suffix) | Validates suitability for automotive powertrain, body control, and ADAS modules requiring long-term reliability. |
| MSL Level 1 moisture sensitivity | Supports standard SMT reflow without baking; compatible with automated assembly at 260 °C peak. |
| Matte tin plating (JESD 201 Class 2) | Prevents tin whisker growth in high-reliability applications where mechanical stress or humidity may occur. |
Applications
| Automotive Power Distribution | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 24 V supply inputs of engine control units (ECUs) against ISO 7637-2 pulse 5a (load dump) transients up to 60 V. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed directly at ECU power entry point to clamp surges before they reach LDOs and microcontrollers. Use Value: Limits peak voltage to ≤42.1 V during 23.8 A surge, preventing latch-up or gate oxide damage in downstream silicon. |
Use Scenario: Safeguarding analog outputs of pressure sensors in factory automation systems exposed to relay coil flyback and motor switching noise. IC Role / Device Role / Timing Role: Low-leakage (≤1 µA) TVS placed across sensor output and ground to absorb repetitive 10/1000 µs transients without affecting 4–20 mA signal integrity. Use Value: Maintains signal accuracy while suppressing >1 kV transients - verified per IEC 61000-4-4 (EFT) test requirements. |
| Telecom DC Power Feeds | Consumer Appliance Motor Control |
|
Use Scenario: Securing -48 V telecom power feeds in remote radio units against lightning-induced surges entering via outdoor cabling. IC Role / Device Role / Timing Role: Unidirectional TVS mounted at board edge to divert common-mode surges to chassis ground before reaching DC/DC converters. Use Value: Withstands 1000 W peak pulses and maintains <1 µA leakage at -48 V, ensuring no standby power loss or false triggering. |
Use Scenario: Shielding BLDC motor driver ICs in smart washing machines from commutation spikes generated by inductive loads. IC Role / Device Role / Timing Role: Fast-response (sub-nanosecond) clamping device placed across half-bridge high-side FET source and ground to suppress shoot-through-inducing voltage overshoot. Use Value: Clamps spikes within 42.1 V, preserving gate oxide integrity and enabling reliable operation at 20 kHz PWM frequencies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ26A-E3/52 | Same VWM (26 V), identical DO-214AA package, but rated for 600 W PPPM (vs. 1000 W) and higher VC (45.7 V @ 13.1 A). | Limited to lower-energy transients; not AEC-Q101 qualified (E3 only). | Select when cost sensitivity outweighs automotive qualification and 1000 W surge headroom. |
| SMCJ26A-13-F | Higher PPPM (1500 W), same VWM, but larger DO-214AB (SMC) package (7.11 mm × 6.22 mm) and higher RθJA (50 °C/W). | Requires PCB layout change; better for sustained surge duty cycles due to improved thermal mass. | Choose when system-level testing shows repeated 1000 W+ surges exceed SMB10J26HE3/52's thermal limits. |
Compared with SMBJ26A-E3/52 and SMCJ26A-13-F, SMB10J26HE3/52 uniquely balances AEC-Q101 qualification, 1000 W surge capability, and compact SMB footprint - making it optimal for space-constrained automotive modules needing validated reliability.
Availability
SMB10J26HE3/52 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor systems, and telecom power distribution requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMB10J26HE3/52 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 high-reliability and automotive-grade solutions.
The SMB10Jxx series belongs to Vishay's TRANSZORB® TVS platform, engineered specifically for robust transient suppression in harsh environments - including under-hood automotive, industrial automation, and infrastructure equipment.
FAQ
What is the clamping voltage of SMB10J26HE3/52 at its rated peak pulse current?
The SMB10J26HE3/52 has a maximum clamping voltage (VC) of 42.1 V at 23.8 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in Vishay's datasheet revision 12-Nov-12, page 2. The clamping performance ensures downstream ICs remain within safe operating voltage margins during surge events.
Is SMB10J26HE3/52 qualified for automotive applications?
Yes, SMB10J26HE3/52 is AEC-Q101 qualified, as indicated by the "HE3" suffix in its part number. This certification covers stress tests including temperature cycling, high-temperature reverse bias (HTRB), and electrostatic discharge (ESD), validating its use in automotive powertrain, body electronics, and ADAS modules. The qualification is documented in Vishay's official datasheet (Document Number: 88422).
What does the "HE3" suffix mean in SMB10J26HE3/52?
The "HE3" suffix in SMB10J26HE3/52 denotes two key attributes: "H" indicates AEC-Q101 qualification, and "E3" specifies RoHS-compliant matte tin plating with JESD 201 Class 2 whisker resistance. This distinguishes it from commercial-grade "E3/52" variants and confirms suitability for high-reliability automotive and industrial applications where long-term solder joint integrity is critical.
What is the thermal resistance of SMB10J26HE3/52, and how does it affect PCB layout?
SMB10J26HE3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 72 °C/W when mounted on 5.0 mm × 5.0 mm copper pads per terminal. This value directly informs minimum copper area requirements: reducing pad size increases thermal impedance, risking junction overheating during repeated surges. For continuous operation near PPPM, designers must ensure adequate copper pour and avoid thermal isolation.
Can SMB10J26HE3/52 be used in bi-directional protection circuits?
No, SMB10J26HE3/52 is a unidirectional TVS diode, as confirmed by its part number structure (no "C" suffix) and electrical specifications - including forward voltage (VF = 3.5 V at 50 A) and asymmetric breakdown behavior. For bi-directional protection, Vishay offers the SMB8J26CA variant, which features symmetrical VBR and no forward conduction path. Using SMB10J26HE3/52 in bi-directional configurations risks permanent failure during negative transients.
SMB10J26HE3/52 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):
- 26V
- Voltage - Breakdown (Min):
- 28.9V
- Voltage - Clamping (Max) @ Ipp:
- 46.6V
- Current - Peak Pulse (10/1000µs):
- 21.5A
- 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)
SMB10J26HE3/52 FAQ
1.How can I place an order for SMB10J26HE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J26HE3/52 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 SMB10J26HE3/52 reliable?
The price and inventory of SMB10J26HE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J26HE3/52 is usually 5 days.
3.What payment methods are accepted for SMB10J26HE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J26HE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J26HE3/52?
SMB10J26HE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J26HE3/52 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 SMB10J26HE3/52?
For technical support, including SMB10J26HE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J26HE3/52 requirements.
6.How does Aetrix verify that SMB10J26HE3/52 is sourced from the original manufacturer or authorized distributors?
All SMB10J26HE3/52 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 SMB10J26HE3/52 meets industry standards.
7.What is the process for return or replacement of SMB10J26HE3/52?
All SMB10J26HE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J26HE3/52, 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 SMB10J26HE3/52 part is unused and in its original packaging.
Return procedure for SMB10J26HE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J26HE3/52 Tags
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