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Vishay General Semiconductor - Diodes Division SMBG24AHE3/52
- Part No.:
- SMBG24AHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG24AHE3/52.pdf
- Description:
- TVS DIODE 24VWM 38.9VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,529
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Product details
Overview
SMBG24AHE3/52 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for robust overvoltage protection of sensitive electronics. It features a 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, and 600 W peak pulse power rating with 10/1000 μs waveform - deployed in automotive power line and sensor interface protection.
For engineers reviewing the SMBG24AHE3/52 datasheet, SMBG24AHE3/52 pinout, SMBG24AHE3/52 application, or SMBG24AHE3/52 equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 150 °C max junction temperature, low incremental surge resistance, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1 μA leakage at 24 V), then rapidly avalanches below 38.9 V to divert transient energy away from downstream ICs or MOSFETs. Its glass-passivated junction ensures stable breakdown characteristics and long-term reliability under repetitive surge stress.
The device is rated for 100 A non-repetitive forward surge current (8.3 ms half-sine), supports 0.01 % duty cycle repetitive operation, and exhibits thermal resistance of 100 °C/W (junction-to-ambient) when mounted per recommended pad layout - enabling effective thermal management in compact automotive and industrial PCB designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 24 V - maximum continuous reverse operating voltage before clamping initiates; defines safe signal/power rail margin |
| VBR (min/max) | 26.7 V / 29.5 V at 1 mA - precise avalanche onset range ensuring consistent turn-on across production lots |
| VC @ IPPM | 38.9 V at 15.4 A - clamping voltage during 600 W transient; limits downstream voltage stress to safe levels |
| PPPM | 600 W - peak pulse power handling with 10/1000 μs waveform; validates protection against ISO 7637-2 Pulse 1/2a/2b |
| TJ max | +150 °C - maximum junction temperature; enables use in under-hood automotive environments |
| AEC-Q101 | Qualified - certified for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| RθJA | 100 °C/W - thermal resistance with standard 0.2" × 0.2" copper pads; informs heatsinking requirements |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, low-profile gull-wing leadframe with matte tin-plated terminals solderable per J-STD-002 and JESD 22-B102. Cathode indicated by band marking on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction or transient clamping | Connected to protected circuit ground or low-side return path; forms shunt path with cathode |
| Cathode | Current exit point during clamping; marked with band | Connected to protected line (e.g., 24 V supply rail); determines unidirectional polarity orientation |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term parameter stability under thermal cycling and humidity stress |
| 600 W peak pulse power (10/1000 μs) | Validates immunity to severe transients like load dump (ISO 16750-2) and inductive switching spikes |
| AEC-Q101 qualification | Confirms suitability for automotive powertrain, body control, and ADAS modules requiring zero-defect reliability |
| MSL Level 1 (260 °C peak reflow) | Enables single-pass lead-free reflow without moisture-induced damage or delamination |
| Low profile SMBG package | Reduces board space vs. SMA/SMB; compatible with high-density layouts and automated pick-and-place |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V supply rails in vehicle ECUs from load dump and alternator transients per ISO 16750-2. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between battery rail and local regulator input. Use Value: Clamps surges to ≤38.9 V, preventing damage to downstream LDOs and microcontrollers rated for 36 V absolute max. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) in factory automation systems exposed to relay coil kickback. IC Role / Device Role / Timing Role: Low-capacitance (<50 pF) TVS placed at sensor connector to absorb fast-rising EFT bursts. Use Value: Sub-1 ns response time and 38.9 V clamping preserve signal integrity while limiting fault voltage to ADC input stage. |
| Telecom DC Power Input Protection | Motor Drive Gate Driver Protection |
Use Scenario: Securing -48 V telecom rectifier outputs against lightning-induced surges and hot-swap transients. IC Role / Device Role / Timing Role: Unidirectional TVS connected cathode-to-rail, anode-to-ground to clamp negative-going transients. Use Value: 24 V VWM allows stable operation across full -36 V to -72 V nominal range; 600 W rating handles IEC 61000-4-5 Comb Wave. | Use Scenario: Shielding high-side gate drivers in BLDC inverters from Miller-induced voltage spikes during MOSFET switching. IC Role / Device Role / Timing Role: TVS placed between gate and source to clamp dv/dt-induced overshoot exceeding driver's VGS rating. Use Value: 38.9 V clamping prevents gate oxide breakdown in 30 V-rated drivers; AEC-Q101 ensures reliability in motor control modules. |
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 SMB package, 24 V VWM, but lower 400 W PPPM; not AEC-Q101 qualified | Targeted at industrial/commercial rather than automotive systems | Select when AEC-Q101 is not required and cost sensitivity outweighs peak surge margin |
| SMCJ24AHE3/52 | Higher 1500 W PPPM, same VWM/VC, but larger SMC (DO-214AB) package | Used where higher surge endurance is needed and board space permits larger footprint | Choose when system-level surge testing exceeds 600 W or requires extended lifetime under repetitive events |
Compared with SMBJ24A-E3/52, SMBG24AHE3/52 delivers +50 % peak power headroom and automotive qualification; versus SMCJ24AHE3/52, it trades 60 % smaller PCB area for reduced surge capacity - making SMBG24AHE3/52 optimal for space-constrained AEC-Q101-compliant designs needing 600 W protection.
Availability
SMBG24AHE3/52 is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface protection, and telecom DC input hardening requiring stable component supply and AEC-Q101 compliance.
Supply support for SMBG24AHE3/52 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, and MOSFETs with emphasis on reliability, precision, and automotive-grade qualification.
The SMBG series was engineered specifically for high-reliability surface-mount transient suppression in space-constrained automotive and industrial applications - balancing low profile, AEC-Q101 compliance, and 600 W surge capability in DO-215AA.
FAQ
What is the clamping voltage of SMBG24AHE3/52 and how is it measured?
The SMBG24AHE3/52 has a maximum clamping voltage (VC) of 38.9 V, measured at its peak pulse current (IPPM) of 15.4 A using a 10/1000 μs double-exponential waveform. This value is guaranteed per Vishay's datasheet (Document Number: 88456) and reflects worst-case voltage seen by protected circuitry during standardized surge events - critical for verifying compatibility with downstream IC voltage ratings.
Is SMBG24AHE3/52 suitable for automotive applications?
Yes, SMBG24AHE3/52 is AEC-Q101 qualified and explicitly rated for automotive use. Its construction includes glass-passivated junction, MSL Level 1 reflow compatibility, and validation across temperature cycling, high-temperature reverse bias, and ESD tests - making SMBG24AHE3/52 appropriate for engine control units, body electronics, and ADAS modules per ISO/TS 16949 requirements.
What does the "HE3" suffix mean in SMBG24AHE3/52?
The "HE3" suffix in SMBG24AHE3/52 indicates RoHS-compliant, AEC-Q101-qualified construction with matte tin-plated leads. Per Vishay's ordering nomenclature, "HE3" denotes industrial-grade, halogen-free, and automotive-qualified versions - distinguishing it from "E3" (RoHS, non-automotive) and "HM3" (halogen-free + AEC-Q101). This ensures traceability to qualified manufacturing lots.
How does SMBG24AHE3/52 differ from SMBJ24A-E3/52?
SMBG24AHE3/52 offers 600 W peak pulse power and AEC-Q101 qualification in the smaller SMBG (DO-215AA) package, whereas SMBJ24A-E3/52 provides only 400 W and lacks automotive qualification. Both share 24 V VWM, but SMBG24AHE3/52's higher surge rating and qualification make it the preferred choice for automotive and mission-critical industrial deployments where reliability and margin are essential.
What is the thermal resistance of SMBG24AHE3/52 and how does it affect layout?
SMBG24AHE3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes minimum recommended pad layout; reducing pad size or omitting thermal vias increases RθJA, risking junction overheating during repetitive surges - so PCB layout must strictly follow Vishay's mounting recommendations to maintain SMBG24AHE3/52 within its 150 °C TJ limit.
SMBG24AHE3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-215AA, SMB Gull Wing
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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 (SMBG)
SMBG24AHE3/52 FAQ
1.How can I place an order for SMBG24AHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG24AHE3/52 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 SMBG24AHE3/52 reliable?
The price and inventory of SMBG24AHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG24AHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBG24AHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG24AHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG24AHE3/52?
SMBG24AHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG24AHE3/52 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 SMBG24AHE3/52?
For technical support, including SMBG24AHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG24AHE3/52 requirements.
6.How does Aetrix verify that SMBG24AHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG24AHE3/52 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 SMBG24AHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBG24AHE3/52?
All SMBG24AHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG24AHE3/52, 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 SMBG24AHE3/52 part is unused and in its original packaging.
Return procedure for SMBG24AHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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