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Vishay General Semiconductor - Diodes Division SMBJ24AHE3/52
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- Part No.:
- SMBJ24AHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ24AHE3/52.pdf
- Description:
- TVS DIODE 24VWM 38.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,265
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Product details
Overview
SMBJ24AHE3/52 from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping fast-rising ESD and surge transients on power and signal lines. It features 24 V stand-off voltage (VWM), 26.7–29.5 V breakdown voltage (VBR) at 1 mA, 38.9 V maximum clamping voltage (VC) at 15.4 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 µs waveform), used for protecting MOSFETs, ICs, and sensor interfaces in industrial power supplies.
For engineers reviewing the SMBJ24AHE3/52 datasheet, SMBJ24AHE3/52 pinout, SMBJ24AHE3/52 application, or SMBJ24AHE3/52 equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), junction temperature range (–55 to +150 °C), and compliance with UL 497B surge protector classification.
Technical Context
This TVS diode operates as a voltage-clamping protection device that enters avalanche conduction when reverse voltage exceeds its breakdown threshold (VBR), limiting transient energy dissipation across protected circuitry. Its glass-passivated junction ensures stable leakage performance and low incremental surge resistance.
Designed for automated SMT assembly, it meets J-STD-020 MSL Level 1 (peak reflow 260 °C) and JESD201 Class 2 whisker resistance. The cathode band denotes polarity, and its matte tin-plated leads are solderable per J-STD-002 and JESD22-B102.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 24 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC working margin. |
| VBR (min/max) | 26.7 V / 29.5 V at IT = 1 mA - Confirmed breakdown range ensuring reliable turn-on during transients. |
| VC @ IPPM | 38.9 V at 15.4 A - Clamped voltage under 600 W 10/1000 µs surge; determines maximum stress on downstream ICs. |
| PPPM | 600 W - Peak pulse power handling capability; validates robustness against IEC 61000-4-5 Level 4 surges. |
| ID @ VWM | 1.0 µA - Reverse leakage at rated stand-off; ensures minimal standby power loss and signal integrity. |
| TJ max. | +150 °C - Maximum junction temperature; supports operation in high-ambient industrial environments. |
| RθJA | 100 °C/W - Thermal resistance junction-to-ambient on standard 0.2" × 0.2" copper pads; guides PCB thermal layout. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads. Cathode indicated by band marking on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / reverse surge return path | Connected to ground or low-impedance return plane; completes clamping loop during transient events. |
| Cathode | Reverse-biased terminal / clamping node | Connected to protected line (e.g., 24 V rail); conducts avalanche current when V > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance per AEC specification. |
| 600 W peak pulse power (10/1000 µs) | Withstands repetitive 600 W surges at 0.01% duty cycle-sufficient for IEC 61000-4-5 combination wave testing. |
| Glass passivated junction | Ensures stable VBR tolerance and low leakage drift over time and temperature vs. epoxy-passivated alternatives. |
| MSL Level 1 moisture sensitivity | Enables standard SMT reflow without baking; compatible with high-volume automated assembly lines. |
| UL 497B recognized (QVGQ2) | Meets Underwriters Laboratories requirements for telecom/data line protectors-supports safety certification of end equipment. |
Applications
| Industrial Power Supply Input Protection | Automotive Body Control Module (BCM) Sensor Lines |
|---|---|
|
Use Scenario: 24 V DC input stage of programmable logic controller (PLC) power module exposed to load dump and inductive switching noise. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between input rail and chassis ground to limit surge voltage to <39 V. Use Value: Prevents damage to upstream DC-DC controllers and downstream microcontrollers by clamping 600 W transients within 1 ns response time. |
Use Scenario: LIN bus signal line (12 V nominal) connecting door module sensors to BCM in passenger vehicle. IC Role / Device Role / Timing Role: Standoff-rated TVS connected between LIN data line and ground to absorb ESD (±15 kV contact) and ISO 7637-2 pulses. Use Value: Maintains signal integrity below 1.5 V overshoot during 10/1000 µs surges while meeting AEC-Q101 automotive qualification. |
| Telecom Remote Radio Unit (RRU) DC Feeder Line | Factory Automation IO-Link Master Port Protection |
|
Use Scenario: 48 V DC power feed line to outdoor 5G RRU unit subject to lightning-induced surges up to 10 A (10/1000 µs). IC Role / Device Role / Timing Role: Primary clamping device in series with fuse and common-mode choke on DC input path. Use Value: Limits clamped voltage to 38.9 V, keeping downstream PoE interface ICs within absolute maximum ratings during repeated surge events. |
Use Scenario: 24 V supply and bidirectional data lines of IO-Link master port interfacing with smart sensors in harsh factory environments. IC Role / Device Role / Timing Role: Unidirectional TVS on VCC line and separate bidirectional variant on CQ line (not this part) for comprehensive port hardening. Use Value: Enables IO-Link compliance with IEC 61000-4-4 (EFT) and IEC 61000-4-5 (surge) by suppressing transients before they reach PHY transceivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24AHM3/52 | Halogen-free, RoHS-compliant variant with identical electrical specs and AEC-Q101 qualification. | No functional difference; selected where halogen-free material compliance is mandated (e.g., EU automotive Tier 1). | Direct material substitution when halogen-free requirement applies; same footprint, thermal, and electrical behavior. |
| SMBJ24A-E3/52 | Commercial-grade (non-AEC-Q101) version with identical VWM, VBR, VC, and PPPM ratings. | Approved for non-automotive industrial/commercial use only; lacks automotive reliability test validation. | Select when AEC-Q101 is not required; lower cost alternative for non-automotive designs with same clamping performance. |
Compared with SMBJ24AHE3/52, the HM3 variant adds halogen-free compliance without altering protection performance, while the E3 variant removes AEC-Q101 qualification-making it suitable for cost-sensitive commercial applications where automotive reliability is unnecessary.
Availability
SMBJ24AHE3/52 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, and telecom infrastructure requiring stable component supply with AEC-Q101 assurance and UL recognition.
Supply support for SMBJ24AHE3/52 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, precision, and application-specific optimization.
The SMBJ series is engineered for high-energy transient suppression in demanding environments-targeting automotive, industrial, and telecom systems where robustness, fast response, and regulatory compliance are critical.
FAQ
What is the clamping voltage of SMBJ24AHE3/52 under a 10/1000 µs surge?
The SMBJ24AHE3/52 has a maximum clamping voltage (VC) of 38.9 V at 15.4 A peak pulse current (IPPM), measured using the standardized 10/1000 µs double-exponential waveform. This value defines the upper voltage limit imposed on protected circuitry during surge events and is confirmed in the Vishay datasheet Document Number 88392, page 2.
Is SMBJ24AHE3/52 qualified to AEC-Q101?
Yes, SMBJ24AHE3/52 is explicitly AEC-Q101 qualified, as stated in the Vishay datasheet (Document Number 88392, page 1, "MECHANICAL DATA" section). The "HE3" suffix denotes RoHS-compliant and AEC-Q101 qualified construction, validated for automotive applications including temperature cycling, HTRB, and surge endurance testing.
What is the standoff voltage rating for SMBJ24AHE3/52?
The standoff voltage (VWM) for SMBJ24AHE3/52 is 24 V, meaning it remains non-conductive under continuous reverse bias up to this voltage. This rating ensures compatibility with standard 24 V industrial and automotive power rails while providing sufficient margin below the 26.7–29.5 V breakdown range (VBR) to avoid false triggering.
Does SMBJ24AHE3/52 have UL recognition?
Yes, SMBJ24AHE3/52 carries Underwriters Laboratories recognition under file number E136766 and standard UL 497B for surge protectors (QVGQ2 classification), as noted in the Vishay datasheet footnote (+) on page 2. This supports safety certification of end equipment in telecom and industrial applications.
What package type does SMBJ24AHE3/52 use?
SMBJ24AHE3/52 uses the SMB (DO-214AA) surface-mount package-a low-profile, rectangular case with gull-wing leads measuring 4.57 mm × 3.94 mm × 2.29 mm (L × W × H). Its dimensions and pad layout are specified in the Vishay datasheet, page 5, and it complies with MSL Level 1 per J-STD-020.
SMBJ24AHE3/52 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):
- 15.4A
- Power - Peak Pulse:
- 600W
- 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 (SMBJ)
SMBJ24AHE3/52 FAQ
1.How can I place an order for SMBJ24AHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ24AHE3/52 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 SMBJ24AHE3/52 reliable?
The price and inventory of SMBJ24AHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ24AHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ24AHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ24AHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ24AHE3/52?
SMBJ24AHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ24AHE3/52 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 SMBJ24AHE3/52?
For technical support, including SMBJ24AHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ24AHE3/52 requirements.
6.How does Aetrix verify that SMBJ24AHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ24AHE3/52 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 SMBJ24AHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ24AHE3/52?
All SMBJ24AHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ24AHE3/52, 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 SMBJ24AHE3/52 part is unused and in its original packaging.
Return procedure for SMBJ24AHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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