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Vishay General Semiconductor - Diodes Division SMB10J24AHM3_B/H
- Part No.:
- SMB10J24AHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J24AHM3_B/H.pdf
- Description:
- 1KW,24V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:7,767
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Product details
Overview
SMB10J24AHM3_B/H from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for high-energy surge protection with 1000 W peak pulse power (10/1000 µs), 24 V stand-off voltage (VWM), and 38.9 V maximum clamping voltage (VC) at 25.7 A peak pulse current. It is AEC-Q101 qualified and used to protect automotive sensor signal lines, MOSFET gates, and microcontroller I/O against inductive switching transients.
For engineers reviewing the SMB10J24AHM3_B/H datasheet, SMB10J24AHM3_B/H pinout, SMB10J24AHM3_B/H application, or SMB10J24AHM3_B/H equivalent, key selection criteria include clamping voltage margin relative to protected IC's absolute maximum rating, junction temperature derating above 25 °C, unidirectional polarity alignment with DC bias, and compliance with automotive-grade reliability requirements per AEC-Q101.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal conditions it presents <1 µA leakage at 24 V (VWM), then rapidly avalanches when transient voltage exceeds its 26.7–29.5 V breakdown range (VBR at 1 mA). Its low incremental surge resistance ensures minimal voltage overshoot during fast transients.
Designed for surface-mount automated assembly, it features glass-passivated junction, matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and meets MSL Level 1 (260 °C reflow peak). Thermal resistance is 72 °C/W junction-to-ambient on standard 5.0 mm × 5.0 mm copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 24 V - Maximum continuous reverse operating voltage before clamping begins; sets upper limit for protected circuit DC bias. |
| VBR min/max | 26.7 V / 29.5 V at 1 mA - Confirmed avalanche onset range; ensures reliable triggering above system operating voltage. |
| VC @ IPPM | 38.9 V at 25.7 A - Clamped voltage during 10/1000 µs surge; must remain below protected device's absolute max rating. |
| PPPM | 1000 W - Peak pulse power handling capability; defines energy absorption capacity for standardized surge waveforms. |
| IFSM | 100 A - Non-repetitive forward surge current rating; supports single-event inrush or fault-current scenarios. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive environments. |
| Polarity | Unidirectional - Cathode-banded device requiring correct orientation in series with positive rail or signal line. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, 2-terminal case with cathode band marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); recommended pad layout: 5.59 mm × 1.52 mm per terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or low-voltage reference; completes shunt path during overvoltage event. |
| Cathode (banded end) | High-side connection point | Connected to protected line (e.g., sensor output or MCU input); blocks reverse current until breakdown threshold. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and ADAS sensor interfaces with lifetime reliability testing. |
| Low profile SMB package | Enables high-density PCB layouts and compatibility with standard SMT pick-and-place equipment without height interference. |
| Glass passivated junction | Provides stable electrical characteristics and enhanced moisture resistance versus epoxy-passivated alternatives. |
| MSL Level 1 rating | Allows unlimited floor life and single-reflow processing at 260 °C peak, eliminating bake-out requirements prior to assembly. |
| Halogen-free & RoHS-compliant | Meets environmental compliance standards for automotive and industrial end markets with HM3 suffix designation. |
Applications
| Automotive Sensor Protection | Industrial Motor Drive I/O |
|---|---|
Use Scenario: Protecting analog output lines of ABS wheel speed sensors exposed to load dump and inductive kickback in 12 V vehicle systems. IC Role / Device Role / Timing Role: Shunt clamping device placed directly at sensor connector interface to clamp transients before reaching downstream signal conditioning amplifier. Use Value: Limits voltage excursion to ≤38.9 V during 1000 W surges, preserving amplifier integrity while maintaining 24 V nominal operation. | Use Scenario: Safeguarding PLC analog input modules connected to 4–20 mA current loops driving solenoid valves. IC Role / Device Role / Timing Role: Unidirectional TVS mounted across input terminals to absorb repetitive switching transients from valve coil de-energization. Use Value: Withstands ≥1000 surges at rated power and maintains <1 µA leakage at 24 V, ensuring measurement accuracy and long-term stability. |
| Automotive Body Control Module | Consumer Power Adapter Interface |
Use Scenario: Input-stage protection for LIN bus transceivers in door module ECUs subjected to battery reverse polarity and jump-start surges. IC Role / Device Role / Timing Role: First-line defense on VCC rail upstream of LDO regulator, triggered within nanoseconds of overvoltage onset. Use Value: Fast response time and 100 A IFSM rating prevent latch-up or burnout during 12 V system faults, supporting ISO 16750-2 compliance. | Use Scenario: Secondary-side transient suppression on 24 V DC output of wall-mounted AC/DC adapters powering smart home hubs. IC Role / Device Role / Timing Role: Standoff-rated TVS placed between output and load to suppress ESD and capacitive coupling noise from connected USB peripherals. Use Value: 24 V VWM aligns precisely with adapter nominal output, enabling clean clamping without false triggering during normal regulation ripple. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24AHE3_A/H | Same VWM (24 V), identical SMB package, but lower PPPM (600 W) and higher VC (43.5 V at 13.7 A). | Not suitable for 1000 W surge environments; limited to lower-energy consumer-grade protection. | Select only if system-level surge testing confirms <600 W requirement and clamping margin allows 43.5 V. |
| 1.5SMC24AH | Higher power (1500 W), same VWM, but larger SMC (DO-214AB) package and non-AEC-Q101 qualified. | Lacks automotive qualification; requires PCB area increase and may not meet OEM reliability validation. | Choose for industrial-only designs needing higher energy rating where AEC-Q101 is not mandated. |
Compared with SMB10J24AHM3_B/H, SMBJ24AHE3_A/H offers reduced surge robustness and looser clamping, while 1.5SMC24AH trades automotive qualification and compactness for greater power handling-making SMB10J24AHM3_B/H optimal for space-constrained, AEC-Q101–required automotive signal line protection.
Availability
SMB10J24AHM3_B/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial motor drive I/O protection, and body control module designs requiring stable component supply with full AEC-Q101 traceability and halogen-free compliance.
Supply support for SMB10J24AHM3_B/H 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, automotive-grade transient suppression in harsh electromagnetic environments.
FAQ
What is the clamping voltage of SMB10J24AHM3_B/H and how does it relate to system protection?
The SMB10J24AHM3_B/H has a maximum clamping voltage (VC) of 38.9 V at 25.7 A peak pulse current (10/1000 µs waveform). This value defines the highest voltage imposed on the protected circuit during a surge event; it must remain safely below the absolute maximum voltage rating of downstream components such as microcontrollers or analog front-ends. The 38.9 V clamping level provides a 14.9 V safety margin above its 24 V stand-off voltage, making it suitable for 24 V automotive and industrial systems.
Is SMB10J24AHM3_B/H suitable for bidirectional signal lines?
No, SMB10J24AHM3_B/H is a unidirectional TVS diode, indicated by its part number suffix "A" and cathode band marking. It conducts only in reverse breakdown and blocks forward current beyond ~3.5 V. For bidirectional protection (e.g., RS-485, CAN, or AC-coupled signals), a bidirectional variant such as SMB8J24CAHM3_B/H must be selected instead, as SMB10J24AHM3_B/H would short the positive half-cycle of AC signals.
Does SMB10J24AHM3_B/H require a heatsink for standard operation?
No external heatsink is required for SMB10J24AHM3_B/H under typical surge conditions. Its thermal resistance is specified as 72 °C/W junction-to-ambient on standard 5.0 mm × 5.0 mm copper pads. Since TVS diodes conduct only during transient events (not continuously), steady-state heating is negligible. However, repeated high-energy surges in rapid succession may raise junction temperature; proper PCB copper area and layout per Vishay's recommended pad dimensions ensure adequate thermal dissipation without added hardware.
How does the HM3 suffix affect the compliance status of SMB10J24AHM3_B/H?
The HM3 suffix denotes that SMB10J24AHM3_B/H is halogen-free, RoHS-compliant, and AEC-Q101 qualified. Unlike base E3/M3 variants, HM3 parts meet automotive-grade reliability standards-including temperature cycling, humidity testing, and mechanical shock-and contain no brominated or chlorinated flame retardants. The "B/H" reel packaging code indicates 750-unit quantity on 7-inch tape-and-reel, optimized for SMT production lines.
Can SMB10J24AHM3_B/H replace SMBJ24A in an existing design?
SMB10J24AHM3_B/H is not a direct drop-in replacement for SMBJ24A due to differences in surge capability and clamping performance. While both share 24 V VWM and SMB package, SMB10J24AHM3_B/H delivers 1000 W PPPM and clamps at 38.9 V, whereas SMBJ24A is rated for only 600 W and clamps at 43.5 V. Substitution requires verification that the PCB layout accommodates identical footprint and that system-level surge testing validates improved clamping margin and energy handling-no layout changes are needed, but functional validation is essential.
SMB10J24AHM3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Bulk
- 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMB10J24AHM3_B/H FAQ
1.How can I place an order for SMB10J24AHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J24AHM3_B/H 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 SMB10J24AHM3_B/H reliable?
The price and inventory of SMB10J24AHM3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J24AHM3_B/H is usually 5 days.
3.What payment methods are accepted for SMB10J24AHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J24AHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J24AHM3_B/H?
SMB10J24AHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J24AHM3_B/H 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 SMB10J24AHM3_B/H?
For technical support, including SMB10J24AHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J24AHM3_B/H requirements.
6.How does Aetrix verify that SMB10J24AHM3_B/H is sourced from the original manufacturer or authorized distributors?
All SMB10J24AHM3_B/H 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 SMB10J24AHM3_B/H meets industry standards.
7.What is the process for return or replacement of SMB10J24AHM3_B/H?
All SMB10J24AHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J24AHM3_B/H, 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 SMB10J24AHM3_B/H part is unused and in its original packaging.
Return procedure for SMB10J24AHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J24AHM3_B/H Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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