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Vishay General Semiconductor - Diodes Division SMB10J26AHE3_B/I
- Part No.:
- SMB10J26AHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J26AHE3_B/I.pdf
- Description:
- 1KW,26V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,770
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Product details
Overview
SMB10J26AHE3_B/I from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for high-energy surge protection with 1000 W peak pulse power (10/1000 µs), 26 V stand-off voltage (VWM), and 42.1 V clamping voltage at 23.8 A peak pulse current. It is AEC-Q101 qualified and used to protect automotive sensor signal lines, power rails, and MOSFET gates against inductive switching transients.
For engineers reviewing the SMB10J26AHE3_B/I datasheet, SMB10J26AHE3_B/I pinout, SMB10J26AHE3_B/I application, or SMB10J26AHE3_B/I equivalent, this page delivers verified electrical parameters, automotive-grade qualification status, thermal resistance data, clamping performance under standardized surge waveforms, and real-world design implications for PCB layout and reliability assurance.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds its breakdown threshold (28.9–31.9 V), it rapidly transitions from high-impedance to low-impedance state to divert surge current away from sensitive downstream circuitry. Its glass-passivated junction ensures stable leakage (<1.0 µA at 26 V) and repeatable breakdown behavior across temperature.
Designed for surface-mount automated assembly, SMB10J26AHE3_B/I meets MSL Level 1 (260 °C peak reflow) and features matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. Its 72 °C/W junction-to-ambient thermal resistance requires minimum 5.0 mm × 5.0 mm copper pads per terminal for rated power dissipation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 26 V - Maximum continuous reverse operating voltage before significant leakage; defines safe operating margin below clamping threshold. |
| VBR min/max | 28.9 V / 31.9 V - Breakdown occurs within this range at 1 mA test current; ensures consistent turn-on across production lots. |
| VC @ IPPM | 42.1 V - Clamping voltage measured at 23.8 A peak pulse current (10/1000 µs); determines maximum stress imposed on protected IC. |
| PPPM | 1000 W - Peak pulse power handling capability; validates robustness against IEC 61000-4-5 Level 4 surges when mounted per spec. |
| RθJA | 72 °C/W - Junction-to-ambient thermal resistance; mandates ≥5.0 mm × 5.0 mm copper pad area per lead for full power rating. |
| TJ max | +150 °C - Maximum junction temperature; supports operation in under-hood automotive environments with proper thermal design. |
| AEC-Q101 | Qualified - Validated for automotive applications including temperature cycling, humidity bias, and mechanical shock per AEC standard. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional polarity indicated by cathode band. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H). Requires 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal for rated power derating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Surge current sink node | Connected to protected line; conducts during overvoltage events to clamp voltage and shunt energy to ground. |
| Anode | Reference/return path | Typically tied to system ground or lower-potential rail; completes current path during transient suppression. |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SMB package | Enables compact placement near connectors or ICs without height interference in tight automotive ECUs. |
| Glass-passivated junction | Ensures long-term stability of breakdown voltage and leakage current under thermal cycling and humidity stress. |
| AEC-Q101 qualification | Validates reliability for automotive use cases including engine control, ADAS sensors, and body electronics. |
| 1000 W peak pulse power | Supports protection against severe transients such as load dump (ISO 7637-2 Pulse 5a) and ISO 16750-2 surges. |
| MSL Level 1 rating | Allows single-reflow soldering at 260 °C peak without moisture-induced damage or popcorn effect. |
Applications
| Automotive Sensor Protection | Power Rail Surge Suppression |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) in engine bay modules from inductive switching noise and ESD. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed directly at connector entry point to limit voltage excursion before reaching signal conditioning IC. Use Value: Limits clamped voltage to 42.1 V, well below typical 48 V absolute maximum ratings of automotive transceivers, preventing latch-up or permanent damage. |
Use Scenario: Safeguarding 24 V supply inputs of infotainment head units and ADAS domain controllers against load dump and jump-start surges. IC Role / Device Role / Timing Role: Primary front-end TVS in parallel with input filter capacitor to absorb multi-kW energy pulses before upstream DC/DC converters. Use Value: Handles 1000 W peak pulse power with <1 ns response time, enabling compliance with ISO 16750-2 Test Pulse 5a (load dump) requirements. |
| MOSFET Gate Protection | Industrial PLC I/O Protection |
|
Use Scenario: Shielding high-side N-channel MOSFET gates in motor drive half-bridges from Miller-induced voltage spikes during fast switching. IC Role / Device Role / Timing Role: Low-capacitance (typ. <100 pF) unidirectional clamp between gate and source to prevent VGS overstress without slowing switching. Use Value: Clamps gate-source voltage to ≤42.1 V while adding negligible capacitive loading-critical for maintaining >100 kHz PWM fidelity. |
Use Scenario: Hardening digital input channels of industrial programmable logic controllers against field-wiring induced surges and lightning-induced coupling. IC Role / Device Role / Timing Role: Standoff-rated (26 V) TVS placed before optocoupler input to block transients while allowing normal 24 V DC signaling. Use Value: Withstands repeated 1 kV/500 A surges (per IEC 61000-4-5) due to low incremental surge resistance and stable clamping performance. |
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 SMB package, 26 V VWM, but rated for 600 W PPPM (vs. 1000 W); no AEC-Q101 qualification. | Limited to commercial-grade industrial or consumer applications where automotive qualification is not required. | Select when cost sensitivity outweighs automotive qualification and higher surge immunity needs. |
| SMCJ26AHE3_A/H | Higher-power SMC (DO-214AB) package with same 26 V VWM and 1500 W PPPM; AEC-Q101 qualified. | Requires larger PCB footprint (7.11 mm × 6.22 mm) and higher thermal mass; suited for primary power rail protection. | Choose when system-level surge requirements exceed 1000 W or when board space allows larger package for enhanced margin. |
Compared with SMBJ26A-E3/52 and SMCJ26AHE3_A/H, SMB10J26AHE3_B/I uniquely balances AEC-Q101 qualification, 1000 W surge capacity, and compact SMB footprint-making it optimal for space-constrained automotive modules requiring validated reliability and high-energy clamping.
Availability
SMB10J26AHE3_B/I is available at Aetrix Electronics and suitable for automotive sensor protection, 24 V power rail hardening, and industrial PLC I/O interface design requiring stable component supply, traceable sourcing, and lifecycle continuity.
Supply support for SMB10J26AHE3_B/I 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, TVS devices, and power MOSFETs with emphasis on reliability, efficiency, and application-specific validation.
SMB10J26AHE3_B/I belongs to Vishay's TRANSZORB® high-power TVS family, engineered specifically for automotive and industrial systems demanding robust, AEC-Q101-qualified transient suppression in compact surface-mount packages.
FAQ
What is the clamping voltage of SMB10J26AHE3_B/I at its rated peak pulse current?
The SMB10J26AHE3_B/I has a maximum clamping voltage (VC) of 42.1 V when subjected to its rated peak pulse current of 23.8 A using the 10/1000 µs waveform. This value is measured under standardized test conditions and defines the upper voltage limit imposed on protected circuitry during surge events. The SMB10J26AHE3_B/I maintains this clamping performance consistently across its operational temperature range and lifetime.
Is SMB10J26AHE3_B/I suitable for automotive applications?
Yes, SMB10J26AHE3_B/I is AEC-Q101 qualified and explicitly designated for automotive use with suffix "HE3" indicating RoHS-compliant and AEC-Q101-qualified construction. It meets requirements for temperature cycling, mechanical shock, and humidity bias testing, making it appropriate for engine control units, ADAS sensors, and body electronics where reliability under harsh environmental conditions is mandatory. The SMB10J26AHE3_B/I data sheet confirms full qualification per AEC-Q101 Rev D.
What is the thermal resistance of SMB10J26AHE3_B/I, and how does it affect PCB layout?
The SMB10J26AHE3_B/I has a typical junction-to-ambient thermal resistance (RθJA) of 72 °C/W, which assumes mounting on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To achieve its full 1000 W peak pulse power rating, PCB layout must provide these minimum pad dimensions with adequate copper thickness and thermal vias. Reducing pad size increases RθJA and requires derating per Figure 2 in the SMB10J26AHE3_B/I datasheet.
How does SMB10J26AHE3_B/I differ from bidirectional variants like SMB8J26CA?
SMB10J26AHE3_B/I is unidirectional with anode-cathode polarity and a 26 V stand-off voltage, intended for DC-biased lines where reverse conduction is undesirable. In contrast, SMB8J26CA is bidirectional with symmetric ±26 V standoff, suited for AC or dual-rail signal lines. The SMB10J26AHE3_B/I offers higher peak pulse power (1000 W vs. 800 W) and is AEC-Q101 qualified, whereas SMB8J26CA shares the same breakdown range but differs in surge rating and polarity architecture.
What packaging options are available for SMB10J26AHE3_B/I?
SMB10J26AHE3_B/I is supplied in 13-inch plastic tape-and-reel format (package code "I") with a base quantity of 3200 units per reel. This configuration supports high-volume automated pick-and-place assembly. The "B/I" suffix denotes the reel size and packaging variant, and the part is compatible with standard SMB feeders. No tray or bulk options are specified for this particular ordering code in the Vishay documentation.
SMB10J26AHE3_B/I 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMB10J26AHE3_B/I FAQ
1.How can I place an order for SMB10J26AHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J26AHE3_B/I 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 SMB10J26AHE3_B/I reliable?
The price and inventory of SMB10J26AHE3_B/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J26AHE3_B/I is usually 5 days.
3.What payment methods are accepted for SMB10J26AHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J26AHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J26AHE3_B/I?
SMB10J26AHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J26AHE3_B/I 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 SMB10J26AHE3_B/I?
For technical support, including SMB10J26AHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J26AHE3_B/I requirements.
6.How does Aetrix verify that SMB10J26AHE3_B/I is sourced from the original manufacturer or authorized distributors?
All SMB10J26AHE3_B/I 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 SMB10J26AHE3_B/I meets industry standards.
7.What is the process for return or replacement of SMB10J26AHE3_B/I?
All SMB10J26AHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J26AHE3_B/I, 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 SMB10J26AHE3_B/I part is unused and in its original packaging.
Return procedure for SMB10J26AHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J26AHE3_B/I Tags
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