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Vishay General Semiconductor - Diodes Division SMB10J26A-E3/52
- Part No.:
- SMB10J26A-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J26A-E3/52.pdf
- Description:
- TVS DIODE 26VWM 42.1VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,275
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Product details
Overview
SMB10J26A-E3/52 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 26 V stand-off voltage (VWM), 28.9–31.9 V breakdown voltage (VBR) at 1 mA, 42.1 V maximum clamping voltage (VC) at 23.8 A peak pulse current (IPPM), and 1000 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed in automotive ECUs, industrial sensor interfaces, and power supply input stages.
For engineers reviewing the SMB10J26A-E3/52 datasheet, SMB10J26A-E3/52 pinout, SMB10J26A-E3/52 application, or SMB10J26A-E3/52 equivalent, this device is evaluated for robust ESD and lightning surge immunity in AEC-Q101-compliant automotive systems, low-leakage (<1 µA at VWM) operation, thermal stability up to 150 °C junction temperature, and compatibility with automated SMT assembly on standard 0.2" × 0.2" copper pads.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR, it avalanches rapidly (response time <1 ns) to divert surge current away from downstream ICs. Its glass-passivated junction ensures stable leakage and long-term reliability under repetitive transients.
Rated for 1000 W peak pulse power per 10/1000 µs waveform and 100 A non-repetitive forward surge current (IFSM), the SMB10J26A-E3/52 maintains low incremental surge resistance and meets MSL Level 1 (260 °C reflow), enabling use in high-volume automotive and industrial PCBs without derating concerns at TA ≤ 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 26 V - maximum continuous reverse operating voltage before conduction begins; sets safe margin for 24 V nominal rail protection. |
| VBR (min/max) | 28.9 V / 31.9 V at IT = 1 mA - defines precise avalanche onset window for predictable clamping behavior. |
| VC @ IPPM | 42.1 V at 23.8 A - clamping voltage during full-rated 1000 W surge; limits stress on protected MOSFETs or microcontrollers. |
| PPPM | 1000 W (10/1000 µs) - energy-handling capacity sufficient for ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 3 surges. |
| ID @ VWM | <1 µA - ultra-low leakage preserves battery life in always-on automotive modules and avoids false triggering. |
| TJ max | +150 °C - enables deployment in engine bay or under-hood applications without thermal derating penalties. |
| Package | SMB (DO-214AA) - industry-standard surface-mount outline with 2.2 mm height, compatible with J-STD-020 reflow profiles. |
Pinout & Package
Two-terminal unidirectional TVS diode in SMB (DO-214AA) package. Cathode identified by color band; anode is unmarked end. Matte tin-plated leads meet J-STD-002 solderability and JESD 22-B102 whisker resistance Class 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Surge return path | Connected to ground or low-impedance reference; carries full IPPM during clamping event. |
| Anode (unmarked end) | Protected line connection | Connected to input rail or signal line; voltage referenced to cathode during transient suppression. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan. |
| Glass passivated junction | Ensures stable VBR tolerance and low parameter drift over 15-year service life in harsh environments. |
| MSL Level 1 rating | Supports single-reflow assembly at 260 °C peak without moisture-induced popcorn failure. |
| Low profile SMB package | Height ≤ 2.2 mm enables use in space-constrained modules such as ADAS camera housings and motor control PCBs. |
| RoHS-compliant & halogen-free option | E3 suffix denotes RoHS compliance; HM3 variant available for strict environmental compliance programs. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 24 V supply inputs of body control modules (BCM) against load dump and ISO 7637-2 transients. IC Role / Device Role: Unidirectional shunt TVS placed between VIN and chassis ground upstream of DC-DC converter. Use Value: Clamps 1000 W surges to ≤42.1 V, preventing damage to 36 V-rated buck controllers and preserving system uptime. |
Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loop) of pressure sensors in factory automation PLCs. IC Role / Device Role: Bidirectional-capable unidirectional TVS used across signal and return paths to suppress EFT bursts. Use Value: Sub-1 µA leakage avoids loading precision current sources; fast response prevents ADC saturation during 5 kV ESD events. |
| Telecom Power Supply Input | Consumer Device USB Port Protection |
|
Use Scenario: Safeguarding AC/DC adapter outputs feeding PoE-powered network switches against lightning-induced surges. IC Role / Device Role: Primary-stage TVS on +48 V DC bus, coordinated with MOV and gas discharge tube in multi-stage clamp. Use Value: 1000 W PPPM rating handles residual energy after upstream suppression; 150 °C TJ rating sustains performance in enclosed enclosures. |
Use Scenario: Adding secondary-level surge immunity to USB-C power delivery (PD) ports in portable monitors. IC Role / Device Role: Unidirectional TVS on VBUS line to absorb hot-plug transients and contact bounce spikes. Use Value: Low 26 V VWM aligns with USB PD 3.0 20 V max; SMB footprint allows placement adjacent to connector without layout redesign. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ26A-E3/52 | Same VWM/VBR/VC specs but rated for 600 W PPPM (vs. 1000 W); lower IPPM (14.3 A). | Targeted at consumer-grade designs with lower surge severity requirements (IEC 61000-4-5 Level 2). | Select SMBJ26A-E3/52 only if system-level surge testing confirms 600 W sufficiency and cost optimization is critical. |
| 1.5SMC26A | Same electrical specs but in larger SMC (DO-214AB) package; higher thermal mass but 2.7 mm height vs. SMB's 2.2 mm. | Preferred where board-level thermal dissipation is constrained and longer surge duration (e.g., 8/20 µs) dominates. | Choose 1.5SMC26A when PCB layout permits larger footprint and higher IPPM margin (>25 A) is needed for legacy surge standards. |
Compared with SMBJ26A-E3/52 and 1.5SMC26A, the SMB10J26A-E3/52 uniquely delivers 1000 W surge handling in the lowest-profile SMB package while maintaining AEC-Q101 qualification - making it optimal for next-gen automotive and space-limited industrial power rails where both performance density and qualification rigor are mandatory.
Availability
SMB10J26A-E3/52 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor systems, and telecom power supply designs requiring stable component supply, AEC-Q101 compliance, and high-power-density transient protection.
Supply support for SMB10J26A-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, rectifiers, and protection devices with emphasis on reliability, efficiency, and application-specific validation.
The SMB10J series is engineered for high-energy transient suppression in demanding automotive and industrial environments, prioritizing AEC-Q101 qualification, low leakage, and consistent clamping performance across temperature and lifetime.
FAQ
What is the maximum clamping voltage of SMB10J26A-E3/52 at its rated peak pulse current?
The SMB10J26A-E3/52 has a maximum clamping voltage (VC) of 42.1 V at its rated peak pulse current (IPPM) of 23.8 A, measured using the standardized 10/1000 µs waveform. This value ensures protected downstream components - such as 36 V-rated DC-DC controllers - remain within safe operating voltage limits during surge events. The SMB10J26A-E3/52 achieves this clamping performance while maintaining low incremental resistance and minimal voltage overshoot.
Is SMB10J26A-E3/52 qualified for automotive applications?
Yes, SMB10J26A-E3/52 is AEC-Q101 qualified, having passed stress tests including high-temperature reverse bias (HTRB), temperature cycling, and ESD per the AEC-Q101 standard. Its RoHS-compliant E3 suffix and MSL Level 1 rating further support use in automotive ECUs, ADAS modules, and body electronics. The SMB10J26A-E3/52 is explicitly designated for automotive-grade designs requiring validated reliability under extended temperature and vibration conditions.
What is the standoff voltage (VWM) and why is it important for SMB10J26A-E3/52 selection?
The standoff voltage (VWM) of SMB10J26A-E3/52 is 26 V - the maximum continuous reverse voltage the device can block without significant leakage. This value must exceed the normal operating voltage of the protected circuit (e.g., 24 V nominal rail) by ≥10 % to avoid false triggering while ensuring sufficient margin before avalanche onset. For SMB10J26A-E3/52, the 26 V VWM provides optimal balance between surge responsiveness and system stability in 24 V automotive and industrial applications.
How does the SMB10J26A-E3/52 compare to bidirectional TVS diodes in the same family?
The SMB10J26A-E3/52 is unidirectional, meaning it conducts only in reverse bias above VBR and blocks forward current like a rectifier. In contrast, bidirectional variants (e.g., SMB10J26CA) conduct symmetrically in both polarities - useful for AC lines or differential signals. The SMB10J26A-E3/52 offers higher PPPM (1000 W vs. 800 W for bidirectional) and is preferred for DC rail protection where polarity is fixed and maximum energy absorption is required.
What packaging and reel options are available for SMB10J26A-E3/52?
SMB10J26A-E3/52 is supplied in 7" diameter plastic tape and reel with 750 units per reel (package code /52). It uses matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 whisker testing. The SMB10J26A-E3/52 is also available in 13" reels (code /5B, 3200 units) and automotive-grade variants with HE3/HM3 suffixes for AEC-Q101 traceability. All versions maintain identical electrical and thermal specifications.
SMB10J26A-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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 26V
- Voltage - Breakdown (Min):
- 28.9V
- Voltage - Clamping (Max) @ Ipp:
- 42.1V
- Current - Peak Pulse (10/1000µs):
- 23.8A
- Power - Peak Pulse:
- 1000W (1kW)
- 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)
SMB10J26A-E3/52 FAQ
1.How can I place an order for SMB10J26A-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J26A-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 SMB10J26A-E3/52 reliable?
The price and inventory of SMB10J26A-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 SMB10J26A-E3/52 is usually 5 days.
3.What payment methods are accepted for SMB10J26A-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J26A-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J26A-E3/52?
SMB10J26A-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J26A-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 SMB10J26A-E3/52?
For technical support, including SMB10J26A-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J26A-E3/52 requirements.
6.How does Aetrix verify that SMB10J26A-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMB10J26A-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 SMB10J26A-E3/52 meets industry standards.
7.What is the process for return or replacement of SMB10J26A-E3/52?
All SMB10J26A-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J26A-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 SMB10J26A-E3/52 part is unused and in its original packaging.
Return procedure for SMB10J26A-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J26A-E3/52 Tags
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