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Vishay General Semiconductor - Diodes Division SMB10J24AHM3_A/H
- Part No.:
- SMB10J24AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J24AHM3_A/H.pdf
- Description:
- TVS DIODE 24VWM 38.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMB10J24AHM3_A/H 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 (10/1000 µs waveform), suitable for automotive power rail protection per AEC-Q101.
For engineers reviewing the SMB10J24AHM3_A/H datasheet, SMB10J24AHM3_A/H pinout, SMB10J24AHM3_A/H application, or SMB10J24AHM3_A/H equivalent, this device is selected for robust overvoltage immunity in 24 V systems-especially where low clamping voltage, fast response (<1 ns), and AEC-Q101 qualification are required for engine control units, body electronics, and sensor interfaces.
Technical Context
This TVS diode operates as a shunt-clamping protector: under normal conditions it presents high impedance (>1 µA leakage at 24 V), then rapidly avalanches below 38.9 V to divert surge energy away from downstream ICs or MOSFETs. Its glass-passivated junction ensures stable breakdown and low incremental surge resistance.
Designed for surface-mount automated assembly, it meets MSL level 1 (260 °C reflow peak) and is halogen-free, RoHS-compliant, and qualified to AEC-Q101 for automotive use. Thermal resistance is 72 °C/W (junction-to-ambient) on standard 0.2" × 0.2" copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 24 V - Maximum continuous reverse operating voltage before significant leakage; defines safe DC rail margin for 24 V nominal systems. |
| VBR (min/max) | 26.7 V / 29.5 V at 1 mA - Confirmed avalanche onset range; ensures reliable triggering above system transients but below IC absolute maximum ratings. |
| VC @ IPPM | 38.9 V at 25.7 A - Clamped voltage during 10/1000 µs surge; limits stress on protected 36 V-tolerant components like CAN transceivers or microcontrollers. |
| PPPM | 1000 W - Peak pulse power handling capability; supports IEC 61000-4-5 Level 4 (4 kV/2 Ω) surge testing on 24 V lines. |
| IFSM | 100 A - Non-repetitive forward surge rating (8.3 ms half-sine); enables protection against load-dump events in automotive battery circuits. |
| TJ max | +150 °C - Maximum junction temperature; allows operation in under-hood environments with sustained ambient up to +125 °C after thermal derating. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002. Cathode indicated by color band on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Surge return path | Connected to ground or low-impedance return plane; completes clamping loop during transient events. |
| Cathode | Protected line connection | Connected to the 24 V rail or signal line being protected; avalanche conduction occurs from cathode to anode when VWM exceeded. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock-enables use in ECU, ADAS, and body control modules without additional qualification. |
| Halogen-free & RoHS-compliant (HM3 suffix) | Meets global environmental compliance requirements and JESD201 Class 2 whisker resistance-supports sustainable manufacturing and long-term supply stability. |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes overvoltage overshoot during clamping, reducing risk of latch-up or gate oxide damage in protected MOSFETs and logic devices. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard 260 °C reflow without baking-reduces production delays and handling costs in SMT lines. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 24 V supply inputs of engine control units (ECUs) against load dump and jump-start surges per ISO 7637-2. IC Role / Device Role / Timing Role: Shunt-clamping TVS placed directly at connector entry point to clamp transients before they reach DC/DC converters and microcontrollers. Use Value: Withstands 1000 W pulses and 100 A surge current while limiting clamped voltage to 38.9 V-ensuring downstream 40 V-rated regulators remain within safe operating area. |
Use Scenario: Safeguarding analog outputs (e.g., 4–20 mA loops) and digital I/O (CAN, LIN) of industrial sensors exposed to field wiring transients. IC Role / Device Role / Timing Role: Bidirectional or unidirectional TVS mounted at PCB edge connectors to absorb ESD (IEC 61000-4-2) and inductive switching noise. Use Value: Sub-1 ns response time and low leakage (<1 µA at 24 V) preserve signal integrity and measurement accuracy without loading precision analog circuits. |
| Telecom DC Power Input Protection | Consumer Appliance Motor Drive Protection |
|
Use Scenario: Securing 24 V DC input of telecom base station power supplies against lightning-induced surges on outdoor feeder lines. IC Role / Device Role / Timing Role: Primary-level TVS in cascade with MOVs and gas discharge tubes to handle high-energy threats before secondary regulation stages. Use Value: 1000 W peak power rating and 72 °C/W thermal resistance enable sustained surge handling without thermal runaway when mounted on 5 mm × 5 mm copper pads. |
Use Scenario: Shielding H-bridge gate drivers and current-sense amplifiers in smart home appliance motor controllers from back-EMF spikes. IC Role / Device Role / Timing Role: Localized TVS across motor supply rails and gate drive traces to suppress commutation transients before they couple into logic or feedback paths. Use Value: Unidirectional configuration prevents interference with PWM timing signals while clamping negative flyback spikes to safe levels for 30 V-rated MOSFETs. |
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 rated for 600 W PPPM and lower IPPM (16.7 A); not AEC-Q101 qualified. | Restricted to commercial-grade industrial or consumer applications lacking automotive qualification requirements. | Select when cost sensitivity outweighs AEC-Q101 need and surge threat level is ≤ IEC 61000-4-5 Level 3. |
| SMCJ24A-Q | Higher PPPM (1500 W), same VWM, but larger SMC (DO-214AB) package; AEC-Q101 qualified. | Requires PCB layout change due to larger footprint and higher thermal mass; suited for higher-energy zones like main battery inputs. | Choose when system-level surge testing exceeds 1000 W or when board space permits larger package for enhanced margin. |
Compared with SMBJ24AHE3_A/H, SMB10J24AHM3_A/H delivers 67% higher surge power handling and automotive qualification; versus SMCJ24A-Q, it offers identical AEC-Q101 compliance in a 30% smaller SMB footprint-ideal for space-constrained ECUs without sacrificing protection level.
Availability
SMB10J24AHM3_A/H is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor systems, and telecom power supply designs requiring stable component supply, AEC-Q101 compliance, and high-power transient immunity.
Supply support for SMB10J24AHM3_A/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 performance.
The SMB10J series belongs to Vishay's high-power-density TRANSZORB® TVS family, engineered specifically for automotive and industrial surge protection where low clamping voltage, fast response, and qualification rigor are mandatory.
FAQ
What is the clamping voltage of SMB10J24AHM3_A/H at its rated peak pulse current?
The SMB10J24AHM3_A/H has a maximum clamping voltage (VC) of 38.9 V at its specified peak pulse current (IPPM) of 25.7 A under the 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 standards and ensures predictable overvoltage limiting for downstream 36–40 V-rated components in 24 V systems. The SMB10J24AHM3_A/H maintains this clamping performance across its full operating temperature range of -55 °C to +150 °C.
Is SMB10J24AHM3_A/H qualified for automotive applications?
Yes, SMB10J24AHM3_A/H is AEC-Q101 qualified and manufactured with halogen-free, RoHS-compliant materials (HM3 suffix). It undergoes rigorous stress testing-including temperature cycling, high-temperature reverse bias, and mechanical shock-to meet automotive electronic module requirements. The SMB10J24AHM3_A/H is explicitly designated for use in engine control units, body electronics, and ADAS subsystems where reliability under harsh environmental conditions is critical.
What is the difference between SMB10J24AHM3_A/H and SMBJ24AHE3_A/H?
The SMB10J24AHM3_A/H delivers 1000 W peak pulse power (vs. 600 W for SMBJ24AHE3_A/H), higher IPPM (25.7 A vs. 16.7 A), and AEC-Q101 qualification-while both share the same 24 V VWM and SMB package. The SMB10J24AHM3_A/H uses a glass-passivated junction for improved stability, whereas SMBJ24AHE3_A/H is commercial-grade only. For automotive designs requiring ISO 7637-2 compliance, SMB10J24AHM3_A/H is the validated choice.
What PCB pad layout is recommended for optimal thermal performance of SMB10J24AHM3_A/H?
Vishay specifies a minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pad for each terminal of SMB10J24AHM3_A/H to achieve the published thermal resistance of 72 °C/W (junction-to-ambient). Using smaller pads increases thermal impedance and reduces surge current derating above 25 °C. The SMB10J24AHM3_A/H datasheet provides exact mounting dimensions, and adherence to this layout ensures reliable operation during repetitive surge events and sustained high-temperature operation.
Does SMB10J24AHM3_A/H support automated SMT placement?
Yes, SMB10J24AHM3_A/H is optimized for automated surface-mount assembly: it features a low-profile SMB (DO-214AA) package, matte tin-plated leads compliant with J-STD-002, and MSL Level 1 rating-allowing exposure to ambient conditions indefinitely prior to reflow. The SMB10J24AHM3_A/H is supplied in 7" or 13" tape-and-reel formats (H/I packaging codes), compatible with standard pick-and-place equipment and supporting high-yield, high-volume production without pre-baking.
SMB10J24AHM3_A/H 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:
- 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_A/H FAQ
1.How can I place an order for SMB10J24AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J24AHM3_A/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_A/H reliable?
The price and inventory of SMB10J24AHM3_A/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_A/H is usually 5 days.
3.What payment methods are accepted for SMB10J24AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J24AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J24AHM3_A/H?
SMB10J24AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J24AHM3_A/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_A/H?
For technical support, including SMB10J24AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J24AHM3_A/H requirements.
6.How does Aetrix verify that SMB10J24AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All SMB10J24AHM3_A/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_A/H meets industry standards.
7.What is the process for return or replacement of SMB10J24AHM3_A/H?
All SMB10J24AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J24AHM3_A/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_A/H part is unused and in its original packaging.
Return procedure for SMB10J24AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J24AHM3_A/H Tags
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