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Vishay General Semiconductor - Diodes Division SMB10J24HE3/52
- Part No.:
- SMB10J24HE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J24HE3/52.pdf
- Description:
- TVS DIODE 24VWM 43VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,019
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Product details
Overview
SMB10J24HE3/52 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 standoff voltage (VWM), 26.7–29.5 V breakdown voltage (VBR), 1000 W peak pulse power (10/1000 µs), clamping voltage of 38.9 V at 25.7 A, and AEC-Q101 qualification for automotive electronics.
For engineers reviewing the SMB10J24HE3/52 datasheet, SMB10J24HE3/52 pinout, SMB10J24HE3/52 application, or SMB10J24HE3/52 equivalent, key selection criteria include clamping performance under 10/1000 µs transients, unidirectional polarity for DC rail protection, RoHS-compliant AEC-Q101 qualification, thermal resistance (RθJA = 72 °C/W), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a voltage-clamping device that enters avalanche conduction when reverse voltage exceeds its breakdown threshold (VBR = 26.7–29.5 V at 1 mA). Its low incremental surge resistance enables rapid energy diversion during ESD or lightning-induced transients, while maintaining sub-1 µA leakage at 24 V standoff.
The device uses a glass-passivated silicon junction and is rated for 150 °C maximum junction temperature. It meets MSL Level 1 per J-STD-020, supports peak forward surge current of 100 A (8.3 ms half-sine), and delivers consistent clamping (VC = 38.9 V) up to its rated 1000 W peak pulse power.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 24 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin. |
| VBR (min/max) | 26.7 V / 29.5 V - Breakdown occurs within this range at 1 mA test current; ensures predictable turn-on timing. |
| VC @ IPPM | 38.9 V at 25.7 A - Clamped voltage during 10/1000 µs surge; determines protected circuit's maximum transient stress. |
| PPPM | 1000 W - Peak pulse power handling capability; defines survivability against IEC 61000-4-5 Level 4 surges. |
| RθJA | 72 °C/W - Junction-to-ambient thermal resistance; informs heatsinking requirements on standard PCB pads. |
| TJ max. | 150 °C - Maximum junction temperature; sets upper limit for ambient + self-heating in continuous operation. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness. |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, low-profile case with cathode band marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); terminals are matte tin-plated, solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., GND) in unidirectional configuration; carries surge current during clamping. |
| Cathode | Reverse-biased terminal | Marked with color band; connected to protected line (e.g., 24 V rail); avalanche conduction initiates here during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure. |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body control, and ADAS modules requiring zero-failure field performance. |
| MSL Level 1 rating | Enables direct placement without baking; compatible with standard reflow profiles peaking at 260 °C. |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes voltage overshoot during transients-critical for protecting 24 V logic interfaces and MOSFET gate drivers. |
| 1000 W peak pulse power | Supports IEC 61000-4-5 4th-level surge immunity (4 kV line-to-ground) on 24 V industrial bus systems. |
Applications
| Automotive Power Distribution | Industrial 24 V PLC Inputs |
|---|---|
|
Use Scenario: Protection of 24 V battery-fed ECUs against load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between supply rail and ground to clamp spikes up to ±120 V. Use Value: Limits voltage seen by downstream regulators and microcontrollers to ≤38.9 V, preventing latch-up or oxide damage. |
Use Scenario: Guarding digital input channels of programmable logic controllers against induced surges from relay coils. IC Role / Device Role / Timing Role: Standoff-rated TVS shunting fast-rising transients (<100 ns rise time) on 24 V sensor inputs. Use Value: Maintains signal integrity by suppressing >1 kV transients while adding <1 pF capacitance-no data rate degradation. |
| DC Motor Drive Power Rails | Telecom Power Feeds |
|
Use Scenario: Suppressing inductive kickback from brushed DC motors in factory automation actuators. IC Role / Device Role / Timing Role: High-power TVS mounted directly across motor terminals or H-bridge supply rails. Use Value: Absorbs 1000 W pulses without degradation, enabling reliable operation under repeated 50 A switching events. |
Use Scenario: Protecting PoE-powered equipment front-ends from lightning-induced surges on 24–48 V DC feeds. IC Role / Device Role / Timing Role: Primary clamping device on DC input stage, coordinated with upstream gas discharge tubes. Use Value: Provides precise 38.9 V clamping to safeguard IEEE 802.3af/at PD controllers and Ethernet PHYs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24A-E3/52 | Same DO-214AA package, identical VWM/VBR/VC specs, but not AEC-Q101 qualified; RθJA = 72 °C/W same. | Commercial-grade only; unsuitable for automotive OEM or Tier-1 designs requiring qualification evidence. | Select when AEC-Q101 is not required and cost sensitivity outweighs qualification traceability. |
| 1.5SMC24A | DO-214AB (SMC) package-larger footprint (7.11 mm × 6.22 mm); same 24 V VWM, but higher VC = 39.4 V at 25.5 A. | Higher thermal mass allows marginally better sustained surge handling but requires larger PCB area. | Choose when board space permits and higher peak current margin (>25.5 A) is needed beyond SMB10J24HE3/52's 25.7 A rating. |
Compared with SMBJ24A-E3/52 and 1.5SMC24A, SMB10J24HE3/52 uniquely combines AEC-Q101 qualification, industry-standard SMB footprint, and optimized clamping for 24 V systems-making it the preferred choice for automotive and high-reliability industrial deployments where qualification and layout compatibility are mandatory.
Availability
SMB10J24HE3/52 is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLCs, DC motor drives, and telecom power supplies requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMB10J24HE3/52 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, TVS devices, and optoelectronics with emphasis on reliability, power density, and automotive-grade validation.
SMB10J24HE3/52 belongs to Vishay's TRANSZORB® family of high-power TVS diodes, engineered specifically for robust transient suppression in harsh environments-including automotive, industrial, and telecom infrastructure where failure is not an option.
FAQ
What is the clamping voltage of SMB10J24HE3/52 under a 10/1000 µs surge?
The SMB10J24HE3/52 clamps to 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 12-Nov-12, page 2. The clamping voltage directly defines the maximum stress imposed on downstream components during surge events, making it critical for validating protection margins in 24 V systems.
Is SMB10J24HE3/52 suitable for automotive applications?
Yes, SMB10J24HE3/52 is AEC-Q101 qualified, as explicitly stated in the Vishay datasheet (Document Number: 88422, page 1). The HE3 suffix denotes RoHS-compliant, AEC-Q101 qualified grade. This certification covers stress tests including temperature cycling, high-temperature reverse bias, and ESD-ensuring reliability in automotive power distribution, body electronics, and ADAS subsystems where SMB10J24HE3/52 is deployed.
What does the "HE3/52" suffix mean in SMB10J24HE3/52?
In SMB10J24HE3/52, "HE3" indicates RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance; "52" specifies packaging in 7″ diameter plastic tape and reel, with 750 units per reel. This ordering code aligns with Vishay's documented format on page 3 of datasheet 88422 and ensures correct procurement of the qualified automotive-grade variant-not the commercial E3-only version.
How does SMB10J24HE3/52 differ from SMBJ24A-E3/52?
SMB10J24HE3/52 and SMBJ24A-E3/52 share identical electrical specs (VWM = 24 V, VBR = 26.7–29.5 V, VC = 38.9 V) and DO-214AA package, but only SMB10J24HE3/52 carries AEC-Q101 qualification. The "HE3" suffix confirms automotive-grade validation, while "E3" alone denotes commercial grade. For designs requiring audit-ready qualification evidence-especially in Tier-1 automotive supply chains-SMB10J24HE3/52 is the mandated variant.
What is the thermal resistance of SMB10J24HE3/52, and how does it affect layout?
SMB10J24HE3/52 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, as specified in the datasheet (page 3). This value assumes minimal copper area; increasing pad size or adding thermal vias reduces effective RθJA, improving surge endurance. Layout must adhere to Vishay's recommended pad dimensions to achieve rated 1000 W pulse power without thermal runaway.
SMB10J24HE3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMB10J24HE3/52 FAQ
1.How can I place an order for SMB10J24HE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J24HE3/52 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 SMB10J24HE3/52 reliable?
The price and inventory of SMB10J24HE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J24HE3/52 is usually 5 days.
3.What payment methods are accepted for SMB10J24HE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J24HE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J24HE3/52?
SMB10J24HE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J24HE3/52 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 SMB10J24HE3/52?
For technical support, including SMB10J24HE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J24HE3/52 requirements.
6.How does Aetrix verify that SMB10J24HE3/52 is sourced from the original manufacturer or authorized distributors?
All SMB10J24HE3/52 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 SMB10J24HE3/52 meets industry standards.
7.What is the process for return or replacement of SMB10J24HE3/52?
All SMB10J24HE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J24HE3/52, 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 SMB10J24HE3/52 part is unused and in its original packaging.
Return procedure for SMB10J24HE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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