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Vishay General Semiconductor - Diodes Division SMB10J26A-E3/5B
- Part No.:
- SMB10J26A-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J26A-E3/5B.pdf
- Description:
- TVS DIODE 26VWM 42.1VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,326
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Product details
Overview
SMB10J26A-E3/5B 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 clamping voltage (VC) at 23.8 A peak pulse current, and 1000 W peak pulse power rating with 10/1000 µs waveform - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMB10J26A-E3/5B datasheet, SMB10J26A-E3/5B pinout, SMB10J26A-E3/5B application, or SMB10J26A-E3/5B equivalent, key selection criteria include clamping performance under 23.8 A surge, AEC-Q101 qualification status, RoHS-compliant E3 suffix, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: it remains high-impedance below 26 V (VWM) and rapidly avalanches above ~28.9 V to clamp transients. Its glass-passivated junction ensures stable breakdown and low leakage (<1 µA at VWM), while MSL Level 1 rating supports lead-free reflow up to 260 °C peak.
The device delivers 1000 W peak pulse power handling per 10/1000 µs waveform when mounted on 0.2" × 0.2" copper pads, with thermal resistance of 72 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), enabling reliable operation up to +150 °C junction temperature in space-constrained PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 26 V - maximum continuous reverse operating voltage before conduction begins |
| VBR (min/max) | 28.9 V / 31.9 V at 1 mA - guaranteed avalanche initiation range defining turn-on threshold |
| VC @ IPPM | 42.1 V at 23.8 A - maximum clamped voltage during 10/1000 µs surge, limiting downstream stress |
| PPPM | 1000 W - peak transient power dissipation capability under standardized surge waveform |
| IFSM | 100 A - non-repetitive forward surge current rating (8.3 ms half-sine), supporting inrush immunity |
| TJ max | +150 °C - maximum junction temperature enabling use in under-hood automotive environments |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; polarity indicated by cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry (unidirectional) | Connected to protected line's lower-potential side (e.g., GND or return path) |
| Cathode | Reverse-biased terminal (marked with band) | Connected to protected line's higher-potential side (e.g., VCC, signal rail, or input) |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SMB package | Enables dense layout in space-constrained modules such as ADAS camera ECUs and motor control boards |
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity |
| AEC-Q101 qualification | Validates suitability for automotive applications including engine control, body electronics, and infotainment |
| MSL Level 1 (260 °C) | Supports standard lead-free reflow without preconditioning or dry-pack requirements |
| 1000 W peak pulse power | Withstands ISO 7637-2 Pulse 1/2a/5a surges and IEC 61000-4-5 combination wave transients |
Applications
| Automotive Sensor Interface | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and inductive switching transients in vehicle chassis modules. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed between signal line and ground, clamping spikes within 1 ns response time to preserve signal integrity. Use Value: Limits voltage excursion to ≤42.1 V during 23.8 A surge, preventing damage to 3.3 V/5 V interface ICs and ensuring ASIL-B functional safety compliance. | Use Scenario: Safeguarding digital input channels on programmable logic controllers exposed to relay coil kickback and ESD events in factory automation cabinets. IC Role / Device Role / Timing Role: Standoff-rated protector on 24 V DC input lines, absorbing repetitive 1000 W surges without degradation across >100,000 cycles. Use Value: Maintains <1 µA leakage at 26 V to avoid false triggering, while sustaining 150 °C junction temperature during continuous operation near heat-generating components. |
| DC Power Rail Protection | Consumer Device USB Port Clamping |
Use Scenario: Guarding 24 V auxiliary power supplies in telecom base stations and PoE-powered equipment against lightning-induced surges on distribution traces. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main DC input, coordinated with upstream fuses and secondary ceramic capacitors for multi-stage filtering. Use Value: Delivers 1000 W pulse handling with 72 °C/W RθJA, allowing direct mounting on 5 mm × 5 mm copper pads without heatsinking in compact enclosures. | Use Scenario: Secondary-level surge suppression on USB 2.0 VBUS lines in portable medical monitors and smart home hubs subjected to user-handling ESD. IC Role / Device Role / Timing Role: Fast-response clamping diode placed after common-mode choke, reducing residual transient energy before reaching USB controller IC. Use Value: Achieves sub-1 ns response with 42.1 V clamping, keeping downstream 5.5 V tolerant PHY ICs within safe operating area during ±8 kV contact discharge. |
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/VC/PPPM, but packaged in 7" tape (750 pcs/reel) vs. 13" tape (3200 pcs/reel) | Optimized for low-volume prototyping or mixed-SKU production runs | Select SMBJ26A-E3/52 when reel size or quantity aligns with SMT line changeover frequency |
| 1.5SMC26A | Higher RθJA (90 °C/W), larger SMC package (DO-214AB), same electrical specs but lower power density | Better suited for high-temperature ambient designs where board space allows larger footprint | Choose 1.5SMC26A only if thermal margin exceeds 20 °C or legacy SMC land patterns are fixed |
Compared with SMBJ26A-E3/52 and 1.5SMC26A, SMB10J26A-E3/5B offers identical clamping performance in a smaller SMB footprint with optimized thermal resistance (72 °C/W) and AEC-Q101 qualification - making it preferred for automotive and high-density industrial designs requiring verified reliability and volume-ready packaging.
Availability
SMB10J26A-E3/5B is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O protection, and DC power rail surge suppression requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMB10J26A-E3/5B 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, efficiency, and application-specific validation.
The SMB10J series is part of Vishay's TRANSZORB® TVS platform engineered for high-power-density transient suppression in automotive, industrial, and telecom systems where AEC-Q101 compliance and robust clamping performance are mandatory.
FAQ
What is the clamping voltage of SMB10J26A-E3/5B at its rated peak pulse current?
The SMB10J26A-E3/5B has a maximum clamping voltage (VC) of 42.1 V at its rated peak pulse current (IPPM) of 23.8 A, measured using the standard 10/1000 µs double-exponential waveform. This value ensures protected circuits remain within safe voltage limits during transient events. The SMB10J26A-E3/5B achieves this clamping performance while maintaining low incremental surge resistance, critical for minimizing let-through energy in sensitive power and signal paths.
Is SMB10J26A-E3/5B qualified for automotive applications?
Yes, SMB10J26A-E3/5B is AEC-Q101 qualified, having passed stress tests including high-temperature reverse bias, temperature cycling, and ESD per automotive reliability standards. Its RoHS-compliant E3 suffix and MSL Level 1 rating further support use in automotive ECUs, body control modules, and sensor nodes. The SMB10J26A-E3/5B meets these qualifications without derating, enabling direct integration into ASIL-B compliant systems where transient immunity is required.
What does the "-E3/5B" suffix indicate in SMB10J26A-E3/5B?
The "-E3" denotes RoHS-compliant, commercial-grade construction with matte tin-plated leads, while "/5B" specifies packaging in 13-inch diameter plastic tape and reel containing 3200 units - optimized for high-volume SMT assembly. This differs from /52 (7-inch reel, 750 units) and supports efficient feeder utilization in automated production. The SMB10J26A-E3/5B suffix confirms full compliance with JESD 201 Class 2 whisker testing and J-STD-002 solderability standards.
How does SMB10J26A-E3/5B compare to bidirectional TVS diodes with the same VWM?
SMB10J26A-E3/5B is unidirectional and optimized for DC line protection where polarity is fixed (e.g., 24 V supply rails), offering 1000 W peak power versus 800 W for equivalent bidirectional SMB8J26CA. Its lower clamping voltage and higher surge current rating make it more effective in single-polarity applications. Unlike bidirectional variants, SMB10J26A-E3/5B provides forward conduction capability (IFSM = 100 A), adding robustness against reverse battery or miswiring events - a feature not available in SMB10J26A-E3/5B's bidirectional counterparts.
What PCB layout guidance applies to SMB10J26A-E3/5B for optimal thermal and electrical performance?
For optimal performance, mount SMB10J26A-E3/5B on minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve specified 1000 W pulse rating and 72 °C/W thermal resistance. Avoid narrow traces between the device and protected node; use short, wide copper pours to minimize inductance and ensure fast clamping response. The SMB10J26A-E3/5B cathode band must align with the higher-potential side of the protected circuit, and adjacent thermal relief should be minimized to maintain thermal mass during surge events.
SMB10J26A-E3/5B 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-E3/5B FAQ
1.How can I place an order for SMB10J26A-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J26A-E3/5B 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-E3/5B reliable?
The price and inventory of SMB10J26A-E3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J26A-E3/5B is usually 5 days.
3.What payment methods are accepted for SMB10J26A-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J26A-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J26A-E3/5B?
SMB10J26A-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J26A-E3/5B 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-E3/5B?
For technical support, including SMB10J26A-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J26A-E3/5B requirements.
6.How does Aetrix verify that SMB10J26A-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMB10J26A-E3/5B 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-E3/5B meets industry standards.
7.What is the process for return or replacement of SMB10J26A-E3/5B?
All SMB10J26A-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J26A-E3/5B, 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-E3/5B part is unused and in its original packaging.
Return procedure for SMB10J26A-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J26A-E3/5B Tags
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