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Vishay General Semiconductor - Diodes Division SMB10J24AHE3/52
- Part No.:
- SMB10J24AHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J24AHE3/52.pdf
- Description:
- TVS DIODE 24VWM 38.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,469
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Product details
Overview
SMB10J24AHE3/52 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), 38.9 V clamping voltage (VC) at 25.7 A peak pulse current (IPPM), and 1000 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed in automotive ECUs, industrial sensor interfaces, and power supply input stages.
For engineers reviewing the SMB10J24AHE3/52 datasheet, SMB10J24AHE3/52 pinout, SMB10J24AHE3/52 application, or SMB10J24AHE3/52 equivalent, key selection criteria include AEC-Q101 qualification, unidirectional polarity with cathode band marking, low incremental surge resistance, MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a clamping device that transitions from high-impedance standby to low-impedance conduction when reverse voltage exceeds VBR, limiting transient energy to safe levels for downstream ICs. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1 ns), while the SMB package enables compact board layout with thermal resistance RθJA = 72 °C/W and RθJL = 20 °C/W.
The SMB10J24AHE3/52 is rated for -55 °C to +150 °C operating junction temperature, supports 100 A non-repetitive forward surge current (IFSM), and meets J-STD-020 reflow profile (peak 260 °C). Its AEC-Q101 qualification confirms suitability for automotive under-hood and infotainment applications requiring robust ESD and load-dump immunity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 24 V - maximum continuous reverse working voltage before clamping begins; defines safe DC operating margin. |
| VBR min/max | 26.7 V / 29.5 V at 1.0 mA - precise breakdown threshold ensuring reliable turn-on during transients. |
| VC @ IPPM | 38.9 V at 25.7 A - clamping voltage limits stress on protected circuitry during 10/1000 µs surge. |
| PPPM | 1000 W - peak pulse power handling capacity per single 10/1000 µs transient event. |
| ID @ VWM | <1.0 µA - ultra-low reverse leakage preserves power efficiency in battery-backed or low-quiescent systems. |
| TJ max | +150 °C - extended thermal range supports under-hood automotive and industrial ambient conditions. |
| Polarity | Unidirectional - cathode-band marked; blocks forward current, clamps reverse overvoltage only. |
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 |
|---|---|---|
| Cathode (banded end) | Transient clamp output | Connected to protected line; conducts during overvoltage to shunt surge current to ground. |
| Anode | Reference/return path | Typically tied to system ground or low-impedance return plane; completes clamping loop during surge events. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing. |
| Glass passivated junction | Ensures stable VBR tolerance, low leakage drift over time, and resistance to environmental contamination. |
| MSL Level 1 | Zero floor life limitation - can be stored indefinitely before reflow without baking or dry-pack requirements. |
| Low incremental surge resistance | Minimizes VC rise under high di/dt surges, improving clamping precision for sensitive 3.3 V/5 V logic interfaces. |
| Automated placement compatible | Standard SMB footprint and lead geometry support high-speed pick-and-place with >99.9% placement yield. |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Module |
|---|---|
Use Scenario: Protecting microcontroller GPIOs and CAN transceiver power pins from load-dump and ISO 7637-2 Pulse 5a transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 12 V rail and ground, clamping surges before they reach LDOs and interface ICs. Use Value: Enables compliance with automotive EMC standards while maintaining <1.0 µA leakage to avoid battery drain in sleep mode. | Use Scenario: Safeguarding 24 V DC digital input circuits against inductive kickback from solenoid valves and relay coils. IC Role / Device Role / Timing Role: Standoff-rated TVS connected across input terminals to absorb 1000 W transients without degradation over 100,000+ cycles. Use Value: Eliminates need for external series resistors or RC snubbers, reducing BOM count and PCB area in DIN-rail mounted I/O modules. |
| Telecom Power Supply Front-End | Consumer Appliance Motor Drive Board |
Use Scenario: Secondary-side surge protection on 24 V auxiliary rails feeding FPGA configuration circuitry and clock buffers. IC Role / Device Role / Timing Role: Clamping device placed after bulk filter capacitor to limit residual transients reaching low-voltage logic domains. Use Value: Maintains 38.9 V clamping level below absolute maximum ratings of 3.3 V LDOs and 25 V-rated tantalum capacitors. | Use Scenario: Overvoltage suppression on brushed DC motor H-bridge supply lines exposed to back-EMF spikes during commutation. IC Role / Device Role / Timing Role: Unidirectional TVS mounted directly at motor connector to divert energy before it couples into gate drivers and MCU power domains. Use Value: Withstands repeated 100 A IFSM surges and operates reliably at +125 °C ambient, matching motor drive thermal profiles. |
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-E3/52 | Same SMB package, identical VWM/VBR/VC specs, but commercial-grade (non-AEC-Q101) and RoHS-compliant only. | Lacks automotive qualification; suitable for industrial/commercial designs where AEC-Q101 is not mandated. | Select when cost sensitivity outweighs automotive qualification requirement and lifecycle assurance is managed externally. |
| 1.5SMC24A | Higher package thermal resistance (RθJA ≈ 110 °C/W), larger SMC (DO-214AB) footprint, same electrical specs except 1.5 kW PPPM rating. | Requires larger PCB area and offers higher peak power but lower power density; less suitable for space-constrained automotive modules. | Choose when higher single-pulse energy handling is needed and board space allows SMC footprint. |
Compared with SMBJ24A-E3/52 and 1.5SMC24A, the SMB10J24AHE3/52 delivers AEC-Q101 assurance in the smallest footprint, enabling direct integration into ASIL-B compliant subsystems without layout redesign or derating penalties.
Availability
SMB10J24AHE3/52 is available at Aetrix Electronics and suitable for automotive electronics, industrial control systems, and telecom power supply designs requiring stable component supply, long-term lifecycle support, and traceable AEC-Q101 qualified parts.
Supply support for SMB10J24AHE3/52 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, power density, and application-specific qualification.
The SMB10JxxA HE3 series targets high-reliability automotive and industrial transient suppression, engineered to meet stringent AEC-Q101 requirements while delivering best-in-class power density in the SMB package.
FAQ
What is the clamping voltage of SMB10J24AHE3/52 and how does it protect downstream components?
The SMB10J24AHE3/52 has a maximum clamping voltage (VC) of 38.9 V at 25.7 A peak pulse current (IPPM) under a 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during surge events. By holding the line voltage below critical thresholds - such as the absolute maximum ratings of 3.3 V or 5 V logic ICs - the SMB10J24AHE3/52 prevents latch-up, gate oxide rupture, and permanent damage. Its low incremental resistance ensures minimal VC overshoot even under high di/dt conditions.
Is SMB10J24AHE3/52 suitable for automotive applications and what qualifications does it hold?
Yes, SMB10J24AHE3/52 is explicitly qualified to AEC-Q101 for automotive use, confirmed by Vishay's documentation and ordering code suffix "HE3". It undergoes stress testing for temperature cycling, high-temperature operating life, and mechanical shock, supporting deployment in engine control units, body electronics, and ADAS subsystems. The device operates from -55 °C to +150 °C junction temperature and meets MSL Level 1 for zero-bake reflow processing - essential for automotive manufacturing flow integrity.
How does the SMB10J24AHE3/52 differ from standard SMBJ24A variants?
The SMB10J24AHE3/52 differs from standard SMBJ24A variants primarily in qualification and material composition: it carries AEC-Q101 certification and uses RoHS-compliant construction with enhanced process controls for automotive reliability, whereas SMBJ24A-E3/52 is commercial-grade only. Both share identical electrical parameters (VWM = 24 V, VBR = 26.7–29.5 V, VC = 38.9 V), but the HE3 suffix guarantees traceable lot-level automotive qualification data, extended temperature validation, and stricter process monitoring - making SMB10J24AHE3/52 the required choice for ASIL-B or safety-critical vehicle subsystems.
What is the recommended PCB pad layout for optimal thermal and surge performance of SMB10J24AHE3/52?
Vishay specifies a minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pad area for each terminal of SMB10J24AHE3/52 to achieve rated 1000 W peak pulse power and maintain thermal resistance (RθJA = 72 °C/W). Pads must be solid, unbroken, and thermally connected to internal ground/power planes via ≥4 thermal vias per pad (0.3 mm diameter, spaced ≤1.5 mm apart). Avoid solder mask dams between pad and copper pour, and ensure cathode band orientation matches silkscreen polarity marking to prevent reverse installation.
Can SMB10J24AHE3/52 be used in bidirectional configurations?
No, SMB10J24AHE3/52 is a unidirectional TVS diode, indicated by its "J" (not "JCA") designation and cathode band marking. It conducts only in reverse bias above VBR and blocks forward current - making it unsuitable for AC line or bidirectional signal protection. For bidirectional operation, Vishay offers the SMB8J24CA variant (same VWM/VBR/VC but symmetrical breakdown), which lacks polarity marking and clamps in both directions. Substituting SMB10J24AHE3/52 in a bidirectional design would result in forward conduction failure and loss of protection during positive transients.
SMB10J24AHE3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMB10J24AHE3/52 FAQ
1.How can I place an order for SMB10J24AHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J24AHE3/52 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 SMB10J24AHE3/52 reliable?
The price and inventory of SMB10J24AHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J24AHE3/52 is usually 5 days.
3.What payment methods are accepted for SMB10J24AHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J24AHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J24AHE3/52?
SMB10J24AHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J24AHE3/52 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 SMB10J24AHE3/52?
For technical support, including SMB10J24AHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J24AHE3/52 requirements.
6.How does Aetrix verify that SMB10J24AHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMB10J24AHE3/52 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 SMB10J24AHE3/52 meets industry standards.
7.What is the process for return or replacement of SMB10J24AHE3/52?
All SMB10J24AHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J24AHE3/52, 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 SMB10J24AHE3/52 part is unused and in its original packaging.
Return procedure for SMB10J24AHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J24AHE3/52 Tags
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