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Vishay General Semiconductor - Diodes Division SMB10J24A-E3/52
- Part No.:
- SMB10J24A-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J24A-E3/52.pdf
- Description:
- TVS DIODE 24VWM 38.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,513
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Product details
Overview
SMB10J24A-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 24 V stand-off voltage (VWM), 26.7–29.5 V breakdown voltage (VBR) at 1 mA, 38.9 V clamping voltage (VC) at 25.7 A peak pulse current (IPPM), and 1000 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed in automotive ECUs and industrial sensor interfaces.
For engineers reviewing the SMB10J24A-E3/52 datasheet, SMB10J24A-E3/52 pinout, SMB10J24A-E3/52 application, or SMB10J24A-E3/52 equivalent, key selection criteria include clamping performance under 25.7 A surge, AEC-Q101 qualification for automotive use, RoHS-compliant E3 termination, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: it remains high-impedance below 24 V (VWM), triggers avalanche conduction at 26.7–29.5 V (VBR), and limits transient voltage to ≤38.9 V (VC) during 10/1000 µs surges up to 25.7 A. Its glass-passivated junction ensures stable breakdown and low leakage (<1 µA at VWM).
Thermally, it sustains operation from −55 °C to +150 °C (TJ max), with RθJA = 72 °C/W and RθJL = 20 °C/W. It meets MSL Level 1 per J-STD-020 (260 °C peak reflow), supports 100 A non-repetitive forward surge (IFSM), and is qualified to AEC-Q101 for automotive-grade reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 24 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 26.7 V / 29.5 V at IT = 1 mA - guaranteed avalanche initiation range for reliable triggering |
| VC @ IPPM | 38.9 V at 25.7 A - clamped voltage during 10/1000 µs surge, defining protected circuit's worst-case overvoltage |
| PPPM | 1000 W - peak pulse power handling capability, enabling robust protection against IEC 61000-4-5 Level 4 surges |
| ID @ VWM | <1 µA - ultra-low reverse leakage ensures minimal standby power loss in battery-powered systems |
| TJ max | +150 °C - extended junction temperature rating supports under-hood automotive and high-ambient industrial use |
| AEC-Q101 | Qualified - validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile 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 / surge return path | Connected to protected line's lower-potential side (e.g., GND or low-side rail) |
| Cathode | Avalanche conduction terminal / clamping node | Connected to protected line's higher-potential side (e.g., 24 V supply or signal line); color band marks this end |
Key Features
| Feature | Design Value |
|---|---|
| 1000 W peak pulse power (10/1000 µs) | Enables single-device protection against severe transients like load dump (ISO 7637-2 Pulse 5a) without external series impedance |
| AEC-Q101 qualification | Validates reliability for automotive applications including engine control, body electronics, and ADAS sensor interfaces |
| Glass passivated junction | Ensures stable VBR over lifetime and temperature, minimizing parameter drift in harsh thermal cycling environments |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow profiles without preconditioning, simplifying manufacturing integration |
| RoHS-compliant E3 termination | Meets global environmental compliance requirements while maintaining solderability and whisker resistance (JESD 201 Class 2) |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 24 V supply inputs in engine control units (ECUs) against load dump and jump-start transients. IC Role / Device Role / Timing Role: Shunt-type transient voltage suppressor placed directly across input rail and ground. Use Value: Clamps surges to ≤38.9 V, preventing damage to downstream DC/DC converters and microcontrollers rated for 36 V absolute maximum. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loops) of pressure/temperature sensors in factory automation. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional TVS placed between signal and shield/ground to absorb ESD and inductive switching noise. Use Value: Sub-µA leakage preserves loop accuracy; fast response (<1 ns) prevents latch-up in precision op-amps driving the loop. |
| Telecom DC Power Interface | Consumer Appliance Motor Drive Protection |
Use Scenario: Input surge suppression on 24 V DC power feeds for PoE-powered network switches and base stations. IC Role / Device Role / Timing Role: Primary front-end TVS on DC input stage, coordinated with upstream fuse and common-mode chokes. Use Value: 1000 W PPPM handles repeated lightning-induced surges per IEC 61000-4-5, reducing need for multi-stage protection. |
Use Scenario: Protecting gate drivers and MCU I/O in smart washing machine motor control boards exposed to relay coil flyback. IC Role / Device Role / Timing Role: Localized TVS at motor driver IC supply pins to clamp inductive kickback from H-bridge MOSFET switching. Use Value: 25.7 A IPPM absorbs typical 20–30 A flyback spikes; compact SMB footprint saves space near high-noise switching nodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24A-E3/52 | Same SMB package, identical VWM/VBR/VC specs, but rated for 600 W PPPM (vs. 1000 W) | Limited to lower-energy transients (e.g., IEC 61000-4-2 ESD only); insufficient for ISO 7637-2 Pulse 5a | Select when cost sensitivity outweighs surge margin and system-level testing confirms 600 W adequacy. |
| 1.5SMC24AHE3/A | Higher-power SMC package (1500 W PPPM), same 24 V VWM, but larger footprint (7.11 × 6.22 mm vs. SMB's 4.57 × 3.94 mm) | Better thermal dissipation for sustained surge duty cycles; requires PCB layout revision due to size and pad geometry | Choose when field failure history shows repeated 1000+ W events or ambient temperatures exceed 105 °C. |
Compared with SMBJ24A-E3/52 and 1.5SMC24AHE3/A, SMB10J24A-E3/52 uniquely balances 1000 W surge capacity with SMB footprint and AEC-Q101 qualification - making it optimal for space-constrained, automotive-grade 24 V rail protection where both performance and qualification are mandatory.
Availability
SMB10J24A-E3/52 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom DC power supplies requiring stable component supply, AEC-Q101 compliance, and high-energy transient immunity.
Supply support for SMB10J24A-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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMB10JxxA series belongs to Vishay's TRANSZORB® high-power TVS family, engineered specifically for automotive and industrial systems demanding robust, AEC-Q101-qualified surge protection in compact surface-mount packages.
FAQ
What is the clamping voltage of SMB10J24A-E3/52 under a 10/1000 µs surge?
The SMB10J24A-E3/52 has a maximum clamping voltage (VC) of 38.9 V when subjected to its rated peak pulse current of 25.7 A with a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on the protected circuit during transient events - critical for ensuring downstream components remain within their absolute maximum ratings.
Is SMB10J24A-E3/52 qualified for automotive applications?
Yes, SMB10J24A-E3/52 is AEC-Q101 qualified, confirming its suitability for automotive electronics including engine control modules, body control units, and ADAS sensor interfaces. The qualification covers stress tests such as high-temperature operating life (HTOL), temperature cycling (TCT), and human-body-model ESD - all performed on the exact SMB10J24A-E3/52 variant with E3 termination and HE3 suffix logic.
What is the reverse leakage current of SMB10J24A-E3/52 at its stand-off voltage?
At its 24 V stand-off voltage (VWM), the SMB10J24A-E3/52 exhibits a maximum reverse leakage current (ID) of 1 µA at 25 °C. This ultra-low leakage preserves power integrity in always-on systems such as automotive telematics and industrial IoT edge nodes, where cumulative leakage across multiple protection devices could otherwise impact battery life or sensor reference stability.
Does SMB10J24A-E3/52 have a bidirectional version?
No - SMB10J24A-E3/52 is strictly unidirectional. Its marking code "1BZ" and cathode band confirm polarity-sensitive operation. For bidirectional protection at 24 V, Vishay offers SMB8J24CA (800 W PPPM, same VWM/VBR range), which uses symmetric avalanche structure and lacks polarity marking - but requires verification of system grounding architecture before substitution.
What is the thermal resistance from junction to ambient for SMB10J24A-E3/52?
The SMB10J24A-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 informs thermal design margins - for example, at 1000 W peak power, junction temperature rise would be ~72 °C above ambient, necessitating derating above 78 °C ambient to stay within the +150 °C TJ max limit.
SMB10J24A-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):
- 24V
- Voltage - Breakdown (Min):
- 26.7V
- Voltage - Clamping (Max) @ Ipp:
- 38.9V
- Current - Peak Pulse (10/1000µs):
- 25.7A
- 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)
SMB10J24A-E3/52 FAQ
1.How can I place an order for SMB10J24A-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J24A-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 SMB10J24A-E3/52 reliable?
The price and inventory of SMB10J24A-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 SMB10J24A-E3/52 is usually 5 days.
3.What payment methods are accepted for SMB10J24A-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J24A-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J24A-E3/52?
SMB10J24A-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J24A-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 SMB10J24A-E3/52?
For technical support, including SMB10J24A-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J24A-E3/52 requirements.
6.How does Aetrix verify that SMB10J24A-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMB10J24A-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 SMB10J24A-E3/52 meets industry standards.
7.What is the process for return or replacement of SMB10J24A-E3/52?
All SMB10J24A-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J24A-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 SMB10J24A-E3/52 part is unused and in its original packaging.
Return procedure for SMB10J24A-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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