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Vishay General Semiconductor - Diodes Division SMB10J24-E3/5B
- Part No.:
- SMB10J24-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J24-E3/5B.pdf
- Description:
- TVS DIODE 24VWM 43VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,460
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Product details
Overview
SMB10J24-E3/5B 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 24 V stand-off voltage (VWM), 26.7–29.5 V breakdown voltage (VBR), 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. Used in automotive power supply inputs and industrial sensor interfaces to protect MOSFETs and ICs from inductive switching transients.
For engineers reviewing the SMB10J24-E3/5B datasheet, SMB10J24-E3/5B pinout, SMB10J24-E3/5B application, or SMB10J24-E3/5B equivalent, key selection criteria include clamping performance under 10/1000 µs surges, unidirectional polarity for DC rail protection, AEC-Q101 qualification for automotive use, thermal resistance (RθJA = 72 °C/W), and RoHS-compliant matte tin plating per J-STD-002.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR (26.7–29.5 V), it avalanches to limit transient energy across protected circuitry. Its glass-passivated junction ensures stable breakdown and low leakage (<1 µA at 24 V), while the DO-214AA package enables automated SMT placement and meets MSL Level 1 (260 °C reflow peak).
Designed for single-polarity DC systems, SMB10J24-E3/5B delivers 1000 W peak pulse power with 38.9 V clamping at 25.7 A, achieving low incremental surge resistance for fast response (<1 ns). It supports operating junction temperatures from –55 °C to +150 °C and is qualified to AEC-Q101 for automotive under-hood applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 24 V - Maximum continuous reverse voltage before significant leakage; sets operating margin below breakdown. |
| VBR (Breakdown Voltage) | 26.7–29.5 V at 1 mA - Confirmed avalanche initiation range; ensures reliable turn-on during transients. |
| VC (Clamping Voltage) | 38.9 V at IPPM = 25.7 A - Peak voltage seen by protected device during 10/1000 µs surge; defines protection ceiling. |
| PPPM (Peak Pulse Power) | 1000 W - Energy-handling capacity for standardized 10/1000 µs waveform; determines survivability of common lightning/surge events. |
| ID (Reverse Leakage) | <1 µA at 24 V - Minimal standby power loss and signal integrity impact in always-on circuits. |
| TJ max. | +150 °C - Enables use in high-temperature environments such as engine control units and industrial motor drives. |
| RθJA | 72 °C/W - Thermal resistance from junction to ambient on 5.0 mm × 5.0 mm copper pads; informs heatsinking requirements. |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, low-profile case with cathode band marking. Matte tin-plated leads meet J-STD-002 solderability and JESD201 Class 1A whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Surge return path | Connected to ground or low-impedance return in unidirectional configuration; completes clamping loop during overvoltage. |
| Cathode | Protected line connection | Connected to the line being protected (e.g., 24 V rail); avalanche conduction occurs from cathode to anode during transients. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock - required for engine control, body electronics, and ADAS power rails. |
| Glass passivated junction | Ensures stable VBR tolerance and long-term leakage stability over temperature and lifetime - critical for safety-critical protection circuits. |
| Low profile DO-214AA package | Enables high-density PCB layouts and compatibility with standard SMT pick-and-place equipment - reduces assembly cost and footprint vs. larger packages. |
| MSL Level 1 rating | Supports lead-free reflow up to 260 °C peak without moisture-induced damage - eliminates bake-out requirement pre-assembly. |
| 1000 W peak pulse power | Withstands IEC 61000-4-5 Level 4 (4 kV line-to-earth) surges when properly laid out - meets stringent industrial and automotive EMC standards. |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: 24 V battery-fed ECUs exposed to load dump and alternator transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between power rail and chassis ground to clamp surges before they reach downstream regulators and microcontrollers. Use Value: Clamps to 38.9 V at 25.7 A, limiting stress on 36 V-rated input stages and enabling compliance with OEM surge immunity requirements. |
Use Scenario: Analog output lines (e.g., 4–20 mA current loops) in factory automation sensors subject to ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS connected from signal line to ground to suppress fast transients without distorting low-bandwidth analog signals. Use Value: Sub-1 µA leakage at 24 V prevents offset error in precision current sources; fast <1 ns response avoids signal corruption during ESD events. |
| DC Motor Drive Power Stage Protection | Telecom Power Supply Input |
|
Use Scenario: H-bridge MOSFET gate drivers and freewheeling paths in brushed DC motor controllers experiencing inductive kickback. IC Role / Device Role / Timing Role: TVS placed across motor terminals or power rail to absorb stored inductive energy and prevent voltage overshoot beyond MOSFET BVDSS ratings. Use Value: 1000 W PPPM handles repetitive 10/1000 µs surges from PWM commutation; 150 °C TJ max supports operation near hot motor windings. |
Use Scenario: Primary-side input of 48 V telecom rectifiers subjected to lightning-induced surges on AC mains or PoE injectors. IC Role / Device Role / Timing Role: First-stage unidirectional TVS on DC input bus to divert bulk surge energy before upstream DC/DC converters and hold-up capacitors. Use Value: 38.9 V clamping protects 60 V-rated front-end FETs; RoHS-compliant matte tin terminations ensure long-term solder joint integrity in high-reliability infrastructure gear. |
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-E3/5B | Same DO-214AA package, identical VWM/VBR/VC specs, but rated at 600 W PPPM (vs. 1000 W). | Limited to lower-energy transients (e.g., IEC 61000-4-2 ESD only); insufficient for ISO 7637-2 load dump. | Select SMBJ24A-E3/5B only where surge energy is constrained and cost sensitivity outweighs headroom. |
| SMCJ24A-E3/57T | DO-214AB (SMC) package, same electrical specs, 1500 W PPPM rating, higher RθJA (50 °C/W). | Requires larger PCB area but offers greater surge margin; thermal design must accommodate higher power dissipation density. | Choose SMCJ24A-E3/57T when system-level surge testing exceeds 1000 W requirements or when layout allows larger footprint. |
Compared with SMBJ24A-E3/5B, SMB10J24-E3/5B delivers 67% higher surge power handling in the same footprint; versus SMCJ24A-E3/57T, it trades 500 W extra rating for 40% smaller board area and lower thermal resistance to ambient on minimal copper.
Availability
SMB10J24-E3/5B is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, DC motor drive power stages, and telecom power supply inputs requiring stable component supply across multi-year production cycles.
Supply support for SMB10J24-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, power density, and automotive qualification.
The SMB10J series belongs to Vishay's TRANSZORB® high-power TVS family, engineered specifically for robust transient suppression in harsh environments including automotive, industrial, and telecom infrastructure where AEC-Q101 compliance and 1000 W surge capability are mandatory.
FAQ
What is the clamping voltage of SMB10J24-E3/5B at its rated peak pulse current?
The SMB10J24-E3/5B has a maximum clamping voltage (VC) of 38.9 V at a peak pulse current (IPPM) of 25.7 A, measured with a 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during standardized surge events and is confirmed in Vishay's datasheet revision 12-Nov-12, page 2. The SMB10J24-E3/5B maintains this clamping performance across its specified operating temperature range.
Is SMB10J24-E3/5B suitable for automotive applications?
Yes, SMB10J24-E3/5B is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments. Its –55 °C to +150 °C operating junction temperature range, glass-passivated junction, and MSL Level 1 reflow compatibility support deployment in engine control modules, body control units, and ADAS power supplies. The SMB10J24-E3/5B meets the reliability and surge immunity demands of modern automotive OEM specifications.
What does the "E3/5B" suffix indicate in SMB10J24-E3/5B?
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 "5B" indicates packaging in 13-inch diameter plastic tape and reel, with a base quantity of 3200 units per reel. This differs from "52" (7-inch reel, 750 units) and confirms the SMB10J24-E3/5B is optimized for high-volume SMT assembly.
How does SMB10J24-E3/5B differ from bi-directional variants like SMB8J24CA?
SMB10J24-E3/5B is unidirectional, intended for DC rail protection where polarity is fixed; SMB8J24CA is bi-directional and suited for AC or floating signal lines. The SMB10J24-E3/5B offers 1000 W PPPM versus 800 W for SMB8J24CA, and its forward surge rating (IFSM = 100 A) applies only to unidirectional types. These differences make SMB10J24-E3/5B the preferred choice for 24 V automotive power inputs, while SMB8J24CA fits bidirectional data lines.
What is the thermal resistance of SMB10J24-E3/5B, and how does it affect layout?
The SMB10J24-E3/5B 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. This value assumes minimum recommended pad layout per Vishay's DO-214AA outline drawing. To maintain safe junction temperatures during repeated surges, PCB layout must provide adequate copper area and avoid thermal bottlenecks - undersized pads will raise RθJA and risk exceeding the +150 °C TJ max of SMB10J24-E3/5B.
SMB10J24-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 24V
- Voltage - Breakdown (Min):
- 26.7V
- Voltage - Clamping (Max) @ Ipp:
- 43V
- Current - Peak Pulse (10/1000µs):
- 23.3A
- 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)
SMB10J24-E3/5B FAQ
1.How can I place an order for SMB10J24-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J24-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 SMB10J24-E3/5B reliable?
The price and inventory of SMB10J24-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 SMB10J24-E3/5B is usually 5 days.
3.What payment methods are accepted for SMB10J24-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J24-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J24-E3/5B?
SMB10J24-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J24-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 SMB10J24-E3/5B?
For technical support, including SMB10J24-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J24-E3/5B requirements.
6.How does Aetrix verify that SMB10J24-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMB10J24-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 SMB10J24-E3/5B meets industry standards.
7.What is the process for return or replacement of SMB10J24-E3/5B?
All SMB10J24-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J24-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 SMB10J24-E3/5B part is unused and in its original packaging.
Return procedure for SMB10J24-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J24-E3/5B Tags
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