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Vishay General Semiconductor - Diodes Division SMB10J26HE3/5B
- Part No.:
- SMB10J26HE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J26HE3/5B.pdf
- Description:
- TVS DIODE 26VWM 46.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,191
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Product details
Overview
SMB10J26HE3/5B from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-214AA (SMB) 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 maximum clamping voltage (VC) at 23.8 A peak pulse current. It is AEC-Q101 qualified and used to protect automotive sensor signal lines and MOSFET gate drivers from inductive switching transients.
For engineers reviewing the SMB10J26HE3/5B datasheet, SMB10J26HE3/5B pinout, SMB10J26HE3/5B application, or SMB10J26HE3/5B equivalent, key selection criteria include clamping voltage margin relative to protected IC VDD, unidirectional polarity alignment with DC-biased lines, AEC-Q101 qualification for automotive use, and thermal resistance (RθJA = 72 °C/W) under PCB pad constraints.
Technical Context
This TVS operates as a voltage-clamped shunt protector: when reverse voltage exceeds 26 V (VWM), it avalanches near 28.9–31.9 V (VBR at 1 mA), limiting downstream voltage to ≤42.1 V during 10/1000 μs surges. Its glass-passivated junction ensures stable breakdown and low leakage (<1 μA at VWM).
Designed for surface-mount automated assembly, it meets MSL level 1 (260 °C peak reflow), features matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and passes JESD 201 class 2 whisker testing due to the HE3 suffix.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 26 V - Maximum continuous reverse operating voltage before conduction begins; sets upper limit for protected line DC bias. |
| VBR (min/max) | 28.9 V / 31.9 V - Breakdown occurs within this range at 1 mA test current; defines turn-on threshold tolerance. |
| VC @ IPPM | 42.1 V - Clamped voltage at 23.8 A peak pulse current; determines worst-case overvoltage seen by downstream IC. |
| PPPM | 1000 W - Peak pulse power handling (10/1000 μs waveform); quantifies single-event surge energy absorption capability. |
| RθJA | 72 °C/W - Junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads; governs temperature rise under sustained power dissipation. |
| Leakage ID | <1 μA at 26 V - Reverse leakage at VWM; ensures minimal quiescent power loss and signal integrity on high-impedance lines. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD; required for under-hood and ADAS applications. |
Pinout & Package
Package: DO-214AA (SMB), molded plastic case with cathode band marking; dimensions 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); UL 94 V-0 rated molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node; completes shunt path during avalanche conduction. |
| Cathode | High-side input terminal | Connected to protected line (e.g., sensor output or MOSFET gate); color band identifies this end. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable, repeatable breakdown voltage and low parameter drift over temperature and lifetime. |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body electronics, and ADAS systems requiring extended temperature and reliability compliance. |
| MSL Level 1 rating | Supports standard SMT reflow profiles up to 260 °C peak without moisture-induced damage. |
| JESD 201 Class 2 whisker resistance | Prevents tin whisker growth under thermal cycling stress, critical for long-life automotive modules. |
| Low incremental surge resistance | Minimizes dynamic impedance during surge events, enabling tighter clamping and lower VC for given IPPM. |
Applications
| Automotive Sensor Protection | MOSFET Gate Driver Protection |
|---|---|
Use Scenario: Protecting analog output lines of pressure, temperature, or position sensors in engine control units exposed to load dump and inductive kickback. IC Role / Device Role / Timing Role: Shunt clamping device placed between sensor output and ground, activated only during overvoltage events. Use Value: Limits transient voltage to ≤42.1 V, preserving sensor IC integrity and preventing false readings or latch-up in downstream ADCs. | Use Scenario: Safeguarding gate terminals of high-side N-channel MOSFETs in automotive motor drivers subjected to back-EMF spikes. IC Role / Device Role / Timing Role: Unidirectional clamp referenced to source/gate drive return, absorbing positive-going gate overvoltage. Use Value: Prevents gate oxide breakdown by clamping gate-source voltage to ≤42.1 V while maintaining <1 μA leakage during normal 12 V operation. |
| Industrial CAN Bus Interface | Consumer Power Supply Input Stage |
Use Scenario: Protecting CANH/CANL differential pair receivers in vehicle telematics modules against ESD and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS on each line (CANH to VCC, CANL to GND), leveraging low clamping to preserve signal eye diagram. Use Value: Maintains signal integrity with 42.1 V clamping margin above 26 V supply rail, ensuring receiver common-mode range remains intact during transients. | Use Scenario: Input-stage surge suppression on 24 V DC power rails feeding smart home hubs and industrial controllers. IC Role / Device Role / Timing Role: Primary shunt protector upstream of DC-DC converters and LDOs, absorbing bulk surge energy before regulation. Use Value: Handles 1000 W surges without degradation, reducing need for secondary protection stages and simplifying BOM for IEC 61000-4-5 Level 3 compliance. |
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-E3/5B | Same VWM (26 V), same DO-214AA package, but not AEC-Q101 qualified; RθJA = 72 °C/W identical. | Commercial-grade only; unsuitable for automotive production where AEC-Q101 is mandated. | Select SMBJ26A-E3/5B only for cost-sensitive non-automotive applications with identical electrical needs. |
| 1.5SMC27A | Higher VWM (27 V), larger DO-214AB (SMC) package (6.2 × 4.6 mm), same 1000 W PPPM, RθJA ≈ 50 °C/W. | Greater thermal mass allows higher average power but requires larger PCB area; not drop-in compatible. | Choose 1.5SMC27A when board layout permits larger footprint and thermal performance outweighs size constraints. |
Compared with SMBJ26A-E3/5B and 1.5SMC27A, SMB10J26HE3/5B uniquely combines AEC-Q101 qualification, SMB footprint, and precise 26 V VWM-making it the only option for space-constrained automotive signal-line protection requiring certified reliability.
Availability
SMB10J26HE3/5B is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial motor driver gate protection, and consumer DC power input stages requiring stable component supply across multi-year production cycles.
Supply support for SMB10J26HE3/5B 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 optimization.
The SMB10J series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-power-density transient suppression in automotive, industrial, and telecom systems where fast response, low clamping, and AEC-Q101 compliance are mandatory.
FAQ
What is the clamping voltage of SMB10J26HE3/5B at its rated peak pulse current?
The SMB10J26HE3/5B has a maximum clamping voltage (VC) of 42.1 V at its rated peak pulse current (IPPM) of 23.8 A, measured using the standardized 10/1000 μs double-exponential surge waveform. This value is guaranteed per the Vishay datasheet revision 12-Nov-12 and defines the upper voltage limit imposed on protected circuitry during worst-case transient events. The SMB10J26HE3/5B maintains this clamping performance across its operational temperature range.
Is SMB10J26HE3/5B suitable for automotive applications?
Yes, SMB10J26HE3/5B is explicitly AEC-Q101 qualified, as confirmed by Vishay documentation (Document Number: 88422). Its construction-including glass-passivated junction, JESD 201 Class 2 whisker resistance, MSL Level 1 reflow compatibility, and -55 °C to +150 °C operating junction temperature-meets automotive reliability requirements. The HE3 suffix denotes AEC-Q101 qualification, making SMB10J26HE3/5B appropriate for engine control, ADAS, and body electronics where certified robustness is mandatory.
What does the "HE3/5B" suffix indicate in SMB10J26HE3/5B?
The "HE3" suffix in SMB10J26HE3/5B indicates RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. The "5B" denotes packaging in 13-inch diameter plastic tape and reel, with a base quantity of 3200 units per reel. This differs from "E3/52", which uses 7-inch reels (750 units) and lacks AEC-Q101 certification. The full part number SMB10J26HE3/5B thus specifies both automotive-grade reliability and high-volume SMT packaging.
How does SMB10J26HE3/5B differ from SMBJ26A-E3/5B?
SMB10J26HE3/5B and SMBJ26A-E3/5B share identical electrical specs (26 V VWM, 42.1 V VC, 1000 W PPPM) and DO-214AA package, but SMB10J26HE3/5B carries AEC-Q101 qualification and JESD 201 Class 2 whisker resistance, whereas SMBJ26A-E3/5B is commercial-grade only. The "HE3" vs. "E3" suffix reflects this reliability distinction. For designs requiring automotive certification, SMB10J26HE3/5B is mandatory; SMBJ26A-E3/5B serves cost-sensitive non-automotive uses. Both are valid variants of the SMB10J26HE3/5B family.
What is the thermal resistance of SMB10J26HE3/5B, and how does it affect layout?
The SMB10J26HE3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 72 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in the Vishay datasheet. This value assumes minimal copper area; increasing pad size or adding internal ground planes lowers effective RθJA. For reliable operation under repeated surges, PCB layout must provide adequate copper area to limit junction temperature rise below 150 °C. The SMB10J26HE3/5B's thermal performance directly impacts its ability to sustain multiple transients without degradation.
SMB10J26HE3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- 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)
SMB10J26HE3/5B FAQ
1.How can I place an order for SMB10J26HE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J26HE3/5B 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 SMB10J26HE3/5B reliable?
The price and inventory of SMB10J26HE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J26HE3/5B is usually 5 days.
3.What payment methods are accepted for SMB10J26HE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J26HE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J26HE3/5B?
SMB10J26HE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J26HE3/5B 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 SMB10J26HE3/5B?
For technical support, including SMB10J26HE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J26HE3/5B requirements.
6.How does Aetrix verify that SMB10J26HE3/5B is sourced from the original manufacturer or authorized distributors?
All SMB10J26HE3/5B 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 SMB10J26HE3/5B meets industry standards.
7.What is the process for return or replacement of SMB10J26HE3/5B?
All SMB10J26HE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J26HE3/5B, 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 SMB10J26HE3/5B part is unused and in its original packaging.
Return procedure for SMB10J26HE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J26HE3/5B Tags
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