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Vishay General Semiconductor - Diodes Division SMB10J24AHM3/H
- Part No.:
- SMB10J24AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J24AHM3/H.pdf
- Description:
- TVS DIODE 24VWM 38.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,365
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Product details
Overview
SMB10J24AHM3/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, 1000 W peak pulse power (10/1000 µs), 25.7 A peak pulse current (IPPM), and clamps to ≤38.9 V under surge conditions. Used in automotive ECUs and industrial sensor interfaces where AEC-Q101 qualification and low clamping voltage are critical.
For engineers reviewing the SMB10J24AHM3/H datasheet, SMB10J24AHM3/H pinout, SMB10J24AHM3/H application, or SMB10J24AHM3/H equivalent, key selection criteria include its AEC-Q101 qualification, halogen-free RoHS compliance (HM3 suffix), 150 °C max junction temperature, unidirectional polarity with cathode band marking, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This device operates as a clamping-type TVS diode, leveraging a glass-passivated silicon junction to achieve fast response (<1 ns) and low incremental surge resistance. Its unidirectional configuration enables robust protection of positive-rail circuits without reverse conduction during normal operation.
Rated for 1000 W peak pulse power per 10/1000 µs waveform and derated above 25 °C ambient, it maintains stable clamping performance up to 150 °C junction temperature. The SMB (DO-214AA) package supports MSL Level 1 handling and reflow up to 260 °C peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 24 V - Maximum continuous reverse voltage before significant leakage; defines operating rail margin. |
| VBR (Breakdown Voltage) | 26.7–29.5 V at 1 mA - Confirmed breakdown threshold ensuring reliable triggering above nominal rail. |
| VC (Clamping Voltage) | ≤38.9 V at 25.7 A IPPM - Limits transient voltage seen by downstream ICs to safe levels. |
| PPPM (Peak Pulse Power) | 1000 W (10/1000 µs) - Withstands high-energy surges common in automotive load-dump and inductive switching events. |
| IFSM (Surge Current) | 100 A (8.3 ms half-sine) - Handles repetitive short-duration overcurrent transients without degradation. |
| TJ max | 150 °C - Enables use in under-hood automotive environments and thermally constrained industrial enclosures. |
| Polarity | Unidirectional - Cathode-banded; blocks reverse current during normal operation, conducts only during positive transients. |
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. Meets UL 94 V-0 flammability rating and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Positive-side connection in unidirectional configuration | Connected to protected line (e.g., +12 V rail); conducts surge current toward ground when clamped. |
| Cathode (marked with band) | Reference/ground-side terminal | Connected to system ground; defines polarity and ensures correct orientation during automated placement. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan. |
| Halogen-free & RoHS-compliant (HM3 suffix) | Meets IEC 61249-2-21 and JEDEC JS709E requirements; supports green manufacturing and end-of-life recycling. |
| Glass-passivated junction | Ensures stable VBR over time and temperature, with low leakage (<1 μA at 24 V) and high surge endurance. |
| Low-profile SMB package | 0.220" × 0.130" footprint with 0.086" height enables dense PCB layouts and compatibility with standard SMT pick-and-place equipment. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and reflow at 260 °C peak without baking-reducing production overhead and risk of popcorning. |
Applications
| Automotive Body Control Module (BCM) | Industrial CAN Transceiver Protection |
|---|---|
|
Use Scenario: Protects 12 V power input of BCM against load-dump transients (ISO 7637-2 Pulse 5a) and jump-start surges. IC Role / Device Role / Timing Role: Clamping TVS placed between VIN and GND, upstream of DC/DC converter input. Use Value: Limits voltage to ≤38.9 V during 1000 W surges, preventing damage to LDOs and microcontrollers rated for 40 V absolute maximum. |
Use Scenario: Shields CANH/CANL lines in factory automation nodes from ESD (IEC 61000-4-2 ±25 kV) and cable discharge events. IC Role / Device Role / Timing Role: Unidirectional TVS on each CAN line referenced to ground, with low capacitance preserving signal integrity. Use Value: Clamps transients within <1 ns while maintaining <100 pF junction capacitance (typ.), avoiding CAN bit timing distortion at 1 Mbps. |
| Consumer Appliance Motor Drive Board | Telecom Power Supply Input Stage |
|
Use Scenario: Guards MCU I/O and gate driver supply rails against inductive kickback from brushed DC motor commutation. IC Role / Device Role / Timing Role: Localized TVS on 5 V/3.3 V rails near motor driver ICs, mounted on 5 mm × 5 mm thermal pads. Use Value: Absorbs 1000 W pulses without thermal runaway, thanks to RθJA = 72 °C/W and RθJL = 20 °C/W thermal design. |
Use Scenario: Front-end protection for AC/DC adapter inputs subjected to lightning-induced surges (IEC 61000-4-5 2 kV line-to-ground). IC Role / Device Role / Timing Role: Primary-stage TVS on bulk DC bus (e.g., 385 V PFC output), configured in unidirectional clamp to ground. Use Value: Delivers 1000 W surge handling with minimal voltage overshoot, reducing need for secondary MOV+TVS cascading and saving board space. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24AHE3/A | Same VWM/VBR/VC specs, but E3 suffix indicates standard RoHS (not halogen-free); no AEC-Q101 certification. | Acceptable for commercial/industrial use where automotive qualification is not required. | Select when halogen-free content and AEC-Q101 are not mandated; lower cost alternative for non-automotive BOMs. |
| SMAJ24A-HM3 | Lower PPPM (400 W), smaller SMA package (DO-214AC), higher RθJA (110 °C/W), same HM3 halogen-free status. | Suitable for space-constrained designs with lower surge exposure (e.g., USB port protection). | Choose when board area is limited and surge energy is ≤400 W; verify thermal margin due to reduced pad area and higher thermal resistance. |
Compared with SMB10J24AHM3/H, SMBJ24AHE3/A lacks AEC-Q101 validation and halogen-free compliance, while SMAJ24A-HM3 trades surge capacity and thermal performance for compactness-making SMB10J24AHM3/H optimal for high-reliability automotive and industrial power-line protection where both energy handling and qualification matter.
Availability
SMB10J24AHM3/H is available at Aetrix Electronics and suitable for automotive electronics, industrial motor drives, telecom power supplies, and consumer appliance control boards requiring stable component supply across long production lifecycles.
Supply support for SMB10J24AHM3/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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, power efficiency, and automotive-grade qualification.
The SMB10JxxA series targets high-power transient suppression in harsh environments, engineered specifically for AEC-Q101 compliance, high-temperature operation, and robust surge immunity in automotive and industrial systems.
FAQ
What is the clamping voltage of SMB10J24AHM3/H at its rated peak pulse current?
The SMB10J24AHM3/H clamps to a maximum of 38.9 V when subjected to its specified peak pulse current of 25.7 A (10/1000 µs waveform). This value is measured under standardized test conditions per ANSI/IEEE C62.35 and ensures downstream ICs see voltage limited well below their absolute maximum ratings, supporting robust system-level surge immunity.
Is SMB10J24AHM3/H qualified for automotive applications?
Yes, SMB10J24AHM3/H is AEC-Q101 qualified, as confirmed by Vishay's official documentation (Document Number: 88422, Revision: 09-Jan-2024). The HM3 suffix denotes halogen-free, RoHS-compliant construction with full automotive stress testing-including temperature cycling, high-temperature reverse bias, and ESD-making SMB10J24AHM3/H suitable for under-hood and body-control module deployments.
What does the "HM3" suffix mean in SMB10J24AHM3/H?
The "HM3" suffix in SMB10J24AHM3/H indicates halogen-free, RoHS-compliant construction meeting JEDEC JS709E and IEC 61249-2-21 standards. It also signifies compliance with JESD 201 Class 2 whisker resistance and MSL Level 1 handling-enabling lead-free reflow at 260 °C without preconditioning. This distinguishes it from E3 (RoHS only) and HE3 (AEC-Q101 + RoHS) variants.
Can SMB10J24AHM3/H be used in bidirectional signal line protection?
No, SMB10J24AHM3/H is a unidirectional TVS diode, identified by its cathode band marking and specified electrical characteristics for single-polarity clamping. For bidirectional protection (e.g., data lines like RS-485 or USB), a bidirectional variant such as SMB8J24CAHM3/H must be selected-SMB10J24AHM3/H will conduct continuously if reverse-biased beyond its VWM, risking failure.
What is the thermal resistance of SMB10J24AHM3/H, and how does it affect layout?
SMB10J24AHM3/H has a typical junction-to-ambient thermal resistance (RθJA) of 72 °C/W and junction-to-lead (RθJL) of 20 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain safe operation at full 1000 W surge rating, PCB layout must provide adequate copper area and thermal vias-reducing RθJA improves sustained surge capability and prevents thermal runaway during repeated events.
SMB10J24AHM3/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:
- Discontinued at Digi-Key
- 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/H FAQ
1.How can I place an order for SMB10J24AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J24AHM3/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/H reliable?
The price and inventory of SMB10J24AHM3/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/H is usually 5 days.
3.What payment methods are accepted for SMB10J24AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J24AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J24AHM3/H?
SMB10J24AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J24AHM3/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/H?
For technical support, including SMB10J24AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J24AHM3/H requirements.
6.How does Aetrix verify that SMB10J24AHM3/H is sourced from the original manufacturer or authorized distributors?
All SMB10J24AHM3/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/H meets industry standards.
7.What is the process for return or replacement of SMB10J24AHM3/H?
All SMB10J24AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J24AHM3/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/H part is unused and in its original packaging.
Return procedure for SMB10J24AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J24AHM3/H Tags
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