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Vishay General Semiconductor - Diodes Division SMB10J24A-M3/52
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- Part No.:
- SMB10J24A-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J24A-M3/52.pdf
- Description:
- TVS DIODE 24VWM 38.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,326
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Product details
Overview
SMB10J24A-M3/52 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, 1000 W peak pulse power (10/1000 µs), 25.7 A peak pulse current (IPPM), and clamps transients to ≤38.9 V. It is widely deployed in automotive power supply inputs and industrial sensor interfaces.
For engineers reviewing the SMB10J24A-M3/52 datasheet, SMB10J24A-M3/52 pinout, SMB10J24A-M3/52 application, or SMB10J24A-M3/52 equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, thermal resistance (RθJA = 72 °C/W), clamping behavior under surge, and halogen-free RoHS-compliant construction - all critical for ESD/surge hardening in safety-critical embedded systems.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped crowbar device: when reverse voltage exceeds VBR (26.7–29.5 V), it avalanches into low-impedance conduction, limiting downstream voltage to ≤38.9 V at 25.7 A. Its glass-passivated junction ensures stable leakage (<1.0 µA at 24 V) and fast response (<1 ns), while MSL Level 1 rating supports lead-free reflow up to 260 °C.
Thermal design relies on its RθJL = 20 °C/W (junction-to-lead) and recommended 5.0 mm × 5.0 mm copper pads per terminal to sustain 1000 W pulses. The SMB package's low profile (max height 1.95 mm) and matte tin-plated leads meet J-STD-002 solderability and JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 24 V - Maximum continuous reverse operating voltage before significant leakage; defines safe DC rail margin. |
| VBR (Breakdown Voltage) | 26.7–29.5 V at 1 mA - Confirmed avalanche initiation range; ensures reliable triggering above nominal 24 V rail. |
| VC (Clamping Voltage) | ≤38.9 V at IPPM = 25.7 A - Maximum voltage seen by protected circuit during 10/1000 µs surge; determines IC survivability. |
| PPPM (Peak Pulse Power) | 1000 W (10/1000 µs) - Energy-handling capacity for standard lightning/surge waveforms; enables IEC 61000-4-5 Level 4 compliance. |
| ID (Reverse Leakage) | ≤1.0 µA at 24 V - Minimal standby power loss and noise coupling; critical for low-power sensor nodes. |
| TJ max. | +150 °C - Enables operation in under-hood automotive environments and enclosed industrial enclosures. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile (max height 1.95 mm), with cathode band marking on one end. Matte tin-plated leads, compliant with J-STD-002 and JESD22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Surge current sink node | Connected to protected line (e.g., 24 V rail); conducts avalanche current to ground during overvoltage events. |
| Anode | Reference/ground return | Typically tied to system ground plane; completes low-inductance path for surge current dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| Halogen-free, RoHS-compliant construction | M3 suffix confirms full halogen-free molding compound and terminations - meets automotive OEM environmental mandates. |
| MSL Level 1 moisture sensitivity | Rated for peak reflow of 260 °C - eliminates bake requirement and supports standard SMT assembly without yield loss. |
| Glass-passivated junction | Ensures stable VBR tolerance and low leakage over lifetime - critical for long-term field reliability in harsh environments. |
| Low incremental surge resistance | Enables tight VC clamping (38.9 V) at 25.7 A - reduces stress on downstream MOSFETs, regulators, and microcontrollers. |
| Automated placement compatibility | Standard SMB footprint and tape-and-reel packaging (M3/52 = 750 pcs per 7″ reel) - optimized for high-volume pick-and-place lines. |
Applications
| Automotive Body Control Module (BCM) Power Input | Industrial PLC Analog Input Protection |
|---|---|
|
Use Scenario: 24 V battery-supplied BCM exposed to load-dump surges (ISO 16750-2) and alternator ripple. IC Role / Device Role / Timing Role: Primary clamping device on main 24 V input rail, placed upstream of DC/DC converter and MCU power domain. Use Value: Limits transient voltage to ≤38.9 V, preventing damage to 40 V-rated buck controllers and ensuring uninterrupted MCU operation during 120 V/50 ms load dump. |
Use Scenario: 4–20 mA analog input channel in programmable logic controller subjected to field wiring ESD and inductive kickback. IC Role / Device Role / Timing Role: First-line bidirectional protection (in conjunction with series resistor) on signal line before precision op-amp front-end. Use Value: Clamps fast transients (<1 ns response) to safe levels while adding <1 pF capacitance - preserves signal integrity up to 100 kHz bandwidth. |
| Telecom Remote Radio Unit (RRU) DC Feed Line | Medical Infusion Pump Motor Driver Supply |
|
Use Scenario: -48 V DC power feed to outdoor RRU encountering lightning-induced surges on tower-mounted cabling. IC Role / Device Role / Timing Role: Unidirectional TVS on -48 V return path (anode grounded), protecting backplane regulators and FPGA I/O banks. Use Value: 1000 W PPPM rating sustains multiple 10/1000 µs surges without degradation; AEC-Q101 qualification validates robustness across -40 to +125 °C operating range. |
Use Scenario: 24 V motor driver supply in battery-powered infusion pump where EMI and cable discharge events threaten motor control ICs. IC Role / Device Role / Timing Role: Secondary overvoltage clamp on H-bridge supply rail, coordinated with primary fuse and common-mode choke. Use Value: 25.7 A IPPM capability handles high di/dt from brushed DC motor commutation spikes; RθJA = 72 °C/W allows thermal management via PCB copper pour alone. |
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-M3/52 | Same SMB package, identical VWM/VBR/VC specs, but rated for 600 W PPPM (vs. 1000 W). | Limited to lower-energy surges (e.g., IEC 61000-4-2 ESD only); insufficient for ISO 16750-2 load dump. | Select SMBJ24A-M3/52 only if system-level surge testing confirms <600 W worst-case transient energy. |
| SMCJ24A-M3/52 | Same electrical specs but in larger SMC (DO-214AB) package; RθJA = 35 °C/W vs. 72 °C/W. | Better thermal performance allows higher duty-cycle surge handling; requires 30% more PCB area. | Choose SMCJ24A-M3/52 when repeated surge events or elevated ambient temperatures exceed SMB10J24A-M3/52 thermal limits. |
Compared with SMBJ24A-M3/52, SMB10J24A-M3/52 delivers 67% higher surge power handling in the same footprint; versus SMCJ24A-M3/52, it trades thermal headroom for space-constrained layouts - making it optimal for automotive ECUs and compact industrial modules where board area is premium.
Availability
SMB10J24A-M3/52 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC analog I/O, telecom remote radio units, and medical infusion pump power systems requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMB10J24A-M3/52 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® TVS platform, engineered specifically for high-power-density surge suppression in automotive, industrial, and telecom infrastructure where space, thermal, and AEC-Q101 compliance are mandatory.
FAQ
What is the maximum clamping voltage of SMB10J24A-M3/52 under a 10/1000 µs surge?
The SMB10J24A-M3/52 clamps to a maximum of 38.9 V when subjected to its rated peak pulse current of 25.7 A (10/1000 µs waveform). This value is measured per ANSI/IEEE C62.35 and confirmed in Vishay's datasheet revision 09-Jan-2024, Document Number 88422. The clamping performance directly protects downstream 40 V-rated components such as buck converters and gate drivers in SMB10J24A-M3/52-based designs.
Is SMB10J24A-M3/52 qualified for automotive applications?
Yes, SMB10J24A-M3/52 is AEC-Q101 qualified, as explicitly stated in the Vishay datasheet. It undergoes stress testing including high-temperature reverse bias (HTRB), temperature cycling, and ESD per AEC-Q101 Rev G. The "M3" suffix further indicates halogen-free, RoHS-compliant construction required by major automotive OEMs. SMB10J24A-M3/52 is routinely used in body control modules and ADAS power supplies.
What does the "M3/52" suffix mean in SMB10J24A-M3/52?
The "M3" denotes halogen-free, RoHS-compliant materials for both package molding compound and matte tin-plated leads; "52" specifies packaging in 7″ diameter plastic tape-and-reel with 750 units per reel. This format ensures compatibility with automated SMT lines and satisfies environmental compliance requirements for global markets. The full part number SMB10J24A-M3/52 uniquely identifies this configuration in Vishay's ordering system.
How does SMB10J24A-M3/52 differ from bidirectional variants like SMB10J24CA-M3/52?
SMB10J24A-M3/52 is unidirectional (cathode-banded), intended for DC rail protection where polarity is fixed; SMB10J24CA-M3/52 is bidirectional (no marking), suited for AC lines or differential signals. Electrically, the bidirectional version has lower PPPM (800 W vs. 1000 W) and different IPPM (20.6 A vs. 25.7 A) due to dual-junction structure. SMB10J24A-M3/52 offers superior single-polarity surge handling in space-constrained 24 V systems.
What is the thermal resistance of SMB10J24A-M3/52, and how does it affect layout?
SMB10J24A-M3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 72 °C/W when mounted on 5.0 mm × 5.0 mm copper pads per terminal. This value assumes minimum recommended pad layout per Vishay's outline drawing. To maintain safe junction temperature during repeated surges, designers must allocate adequate copper area and avoid thermal isolation - undersized pads will cause premature thermal derating of SMB10J24A-M3/52's 1000 W rating.
SMB10J24A-M3/52 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 (SMBJ)
SMB10J24A-M3/52 FAQ
1.How can I place an order for SMB10J24A-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J24A-M3/52 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-M3/52 reliable?
The price and inventory of SMB10J24A-M3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J24A-M3/52 is usually 5 days.
3.What payment methods are accepted for SMB10J24A-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J24A-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J24A-M3/52?
SMB10J24A-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J24A-M3/52 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-M3/52?
For technical support, including SMB10J24A-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J24A-M3/52 requirements.
6.How does Aetrix verify that SMB10J24A-M3/52 is sourced from the original manufacturer or authorized distributors?
All SMB10J24A-M3/52 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-M3/52 meets industry standards.
7.What is the process for return or replacement of SMB10J24A-M3/52?
All SMB10J24A-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J24A-M3/52, 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-M3/52 part is unused and in its original packaging.
Return procedure for SMB10J24A-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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