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Vishay General Semiconductor - Diodes Division SMB10J26-E3/52
- Part No.:
- SMB10J26-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J26-E3/52.pdf
- Description:
- TVS DIODE 26VWM 46.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,690
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Product details
Overview
SMB10J26-E3/52 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 standoff 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 power supply inputs and industrial sensor interfaces.
For engineers reviewing the SMB10J26-E3/52 datasheet, SMB10J26-E3/52 pinout, SMB10J26-E3/52 application, or SMB10J26-E3/52 equivalent, key selection criteria include clamping performance under 23.8 A surge, unidirectional polarity for DC rail protection, AEC-Q101 qualification for automotive use, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a shunt-clamping device that remains high-impedance below 26 V and rapidly transitions to low-impedance conduction above its 28.9 V minimum breakdown threshold. Its glass-passivated junction ensures stable leakage (<1 µA at VWM) and repeatable clamping behavior across temperature (–55 °C to +150 °C).
The device delivers 1000 W peak pulse power handling per 10/1000 µs waveform when mounted on recommended 5.0 mm × 5.0 mm copper pads, with thermal resistance of 72 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), enabling reliable operation in thermally constrained PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 26 V - Maximum continuous reverse voltage before significant leakage; defines safe operating margin for 24 V nominal systems. |
| VBR (Breakdown Voltage) | 28.9–31.9 V at 1 mA - Confirmed minimum/maximum threshold where device enters avalanche conduction; ensures robust turn-on margin over VWM. |
| VC (Clamping Voltage) | 42.1 V at 23.8 A - Measured maximum voltage across terminals during 10/1000 µs surge; limits stress on downstream ICs like MCUs or transceivers. |
| PPPM (Peak Pulse Power) | 1000 W - Sustained energy absorption capability under standardized surge waveform; supports IEC 61000-4-5 Level 4 compliance when properly laid out. |
| IPPM (Peak Pulse Current) | 23.8 A - Maximum non-repetitive surge current the device safely clamps without degradation; derived from VC and PPPM (P = V × I). |
| TJmax | 150 °C - Maximum junction temperature; enables operation in under-hood automotive environments and industrial enclosures without derating below 100% power. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing; suitable for ASIL-B supporting subsystems. |
Pinout & Package
DO-214AA (SMB) surface-mount package: molded epoxy case with matte tin-plated leads, 0.205–0.220 inch body length, cathode band marking on one end; compliant with J-STD-002 solderability and JESD201 Class 1A whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to system ground or return path; completes clamping loop during positive transients on cathode side. |
| Cathode | Protected line input | Connected to the line being protected (e.g., 24 V rail); conducts surge current to anode when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional polarity | Enables DC rail protection without forward-conduction interference; cathode-band marking ensures correct orientation during automated placement. |
| Glass-passivated junction | Provides stable, low-drift breakdown characteristics and <1 µA leakage at 26 V, critical for low-power always-on circuits. |
| MSL Level 1 (260 °C peak) | Supports lead-free reflow without moisture-induced popcorning; eliminates pre-bake requirement in standard SMT lines. |
| 1000 W peak pulse rating | Handles high-energy transients from inductive load switching (e.g., solenoids, motors) without failure in industrial control modules. |
| AEC-Q101 qualification | Validates long-term reliability under automotive thermal, vibration, and humidity stresses - required for engine control, body electronics, and ADAS power domains. |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 24 V supply input of an automotive body control module (BCM) against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Shunt-clamping TVS placed between battery rail and DC-DC converter input to limit transient overvoltage. Use Value: Clamps 42.1 V at 23.8 A, keeping downstream regulator input within safe SOA while meeting AEC-Q101 lifetime requirements. |
Use Scenario: Safeguarding analog output (4–20 mA) lines of a pressure sensor in factory automation equipment. IC Role / Device Role / Timing Role: Bidirectional-capable protection element (though SMB10J26-E3/52 is unidirectional, used on supply side) limiting induced surges from nearby motor drives. Use Value: 1000 W surge rating absorbs repetitive 10/1000 µs transients without parameter shift, preserving sensor accuracy over 10+ year deployments. |
| Telecom DC Power Feeds | Consumer Appliance Motor Drive Inputs |
Use Scenario: Securing -48 V DC power input of a remote radio head (RRH) against lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary front-end TVS on telecom rectifier output, coordinated with secondary GDT or MOV stages. Use Value: 26 V VWM provides sufficient margin above nominal -48 V (absolute value), while 42.1 V clamping prevents latch-up in PMICs. |
Use Scenario: Shielding microcontroller I/O and gate driver supply lines in smart washing machine motor control boards. IC Role / Device Role / Timing Role: Localized TVS on 12 V logic rail adjacent to BLDC inverter stage to suppress commutation spikes. Use Value: Low incremental surge resistance and fast response (<1 ns) prevent voltage overshoot from damaging MCU GPIO or level-shifters. |
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/VBR/VC specs, identical DO-214AA package, but rated at 600 W PPPM (vs. 1000 W). | Lower energy handling limits use to sub-15 A surge environments; not suitable for ISO 7637-2 Pulse 5a. | Select only when system-level surge testing confirms ≤600 W requirement and cost optimization is prioritized. |
| SMCJ26A-E3/52 | Same electrical parameters but in larger DO-214AB (SMC) package; 1500 W PPPM, lower RθJA (40 °C/W). | Requires more PCB area; preferred for high-reliability industrial designs needing margin beyond 1000 W. | Choose when thermal management is critical or when legacy SMC footprint is already allocated. |
Compared with SMBJ26A-E3/52, SMB10J26-E3/52 delivers 67% higher surge power capacity in the same SMB footprint; versus SMCJ26A-E3/52, it trades 50% smaller board area for 33% lower peak power - making it optimal for space-constrained automotive ECUs requiring full AEC-Q101-compliant 1000 W protection.
Availability
SMB10J26-E3/52 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, and telecom DC power feeds requiring stable component supply with AEC-Q101 assurance and RoHS compliance.
Supply support for SMB10J26-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The SMB10J series belongs to Vishay's TRANSZORB® TVS platform, engineered specifically for high-power-density, surface-mount surge protection in automotive, industrial, and communications infrastructure where compact size and AEC-Q101 validation are mandatory.
FAQ
What is the clamping voltage of SMB10J26-E3/52 at its rated peak pulse current?
The SMB10J26-E3/52 has a maximum clamping voltage (VC) of 42.1 V when subjected to its rated 23.8 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees predictable overvoltage limiting for downstream circuitry - a critical parameter verified in every production lot of SMB10J26-E3/52.
Is SMB10J26-E3/52 suitable for automotive applications?
Yes, SMB10J26-E3/52 is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments. Its 150 °C maximum junction temperature, MSL Level 1 reflow compatibility, and validated performance across temperature cycling and humidity tests make it appropriate for body control modules, lighting drivers, and ADAS power supplies - all confirmed in the official Vishay qualification report for SMB10J26-E3/52.
What does the "-E3/52" suffix indicate in SMB10J26-E3/52?
The "-E3" suffix denotes RoHS-compliant, commercial-grade construction with matte tin-plated leads meeting J-STD-002 solderability and JESD201 Class 1A whisker resistance. The "/52" indicates packaging in 7" diameter plastic tape and reel, with a base quantity of 750 units - a standard logistics configuration verified in Vishay's ordering information table for SMB10J26-E3/52.
How does SMB10J26-E3/52 differ from bi-directional variants like SMB8J26CA?
SMB10J26-E3/52 is unidirectional and optimized for DC rail protection, conducting only during reverse overvoltage events, whereas SMB8J26CA is bi-directional and handles symmetrical AC or bipolar transients. SMB10J26-E3/52 offers higher peak pulse power (1000 W vs. 800 W) and lower clamping impedance - a distinction confirmed in Vishay's Electrical Characteristics tables for both SMB10J26-E3/52 and SMB8J26CA.
What is the thermal resistance of SMB10J26-E3/52, and how does it affect layout?
SMB10J26-E3/52 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. This value assumes standard JEDEC test conditions and directly informs PCB copper area requirements - reducing pad size increases RθJA, risking thermal runaway during repeated surges. Layout guidance is specified in the official SMB10J26-E3/52 datasheet Figure 2 derating curves.
SMB10J26-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:
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMB10J26-E3/52 FAQ
1.How can I place an order for SMB10J26-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J26-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 SMB10J26-E3/52 reliable?
The price and inventory of SMB10J26-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 SMB10J26-E3/52 is usually 5 days.
3.What payment methods are accepted for SMB10J26-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J26-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J26-E3/52?
SMB10J26-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J26-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 SMB10J26-E3/52?
For technical support, including SMB10J26-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J26-E3/52 requirements.
6.How does Aetrix verify that SMB10J26-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMB10J26-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 SMB10J26-E3/52 meets industry standards.
7.What is the process for return or replacement of SMB10J26-E3/52?
All SMB10J26-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J26-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 SMB10J26-E3/52 part is unused and in its original packaging.
Return procedure for SMB10J26-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J26-E3/52 Tags
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