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Vishay General Semiconductor - Diodes Division SMBG24CHE3/52
- Part No.:
- SMBG24CHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG24CHE3/52.pdf
- Description:
- TVS DIODE 24VWM 43VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,008
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Product details
Overview
SMBG24CHE3/52 from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-215AA (SMBG) package, designed for clamping inductive and lightning-induced transients on signal/power lines. It features 24 V stand-off voltage (VWM), 26.7–29.5 V breakdown voltage (VBR), 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 - used in automotive sensor protection and industrial I/O interfaces.
For engineers reviewing the SMBG24CHE3/52 datasheet, SMBG24CHE3/52 pinout, SMBG24CHE3/52 application, or SMBG24CHE3/52 equivalent, key selection criteria include bi-directional clamping capability, AEC-Q101 qualification, RoHS-compliant HE3 suffix, thermal resistance (RθJA = 100 °C/W), and compatibility with 0.2" × 0.2" copper pad layout per JEDEC standards.
Technical Context
This device operates as a voltage-clamping protector with symmetrical bi-directional avalanche behavior, enabling suppression of both positive and negative transients without polarity sensitivity. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 µA at VWM), while the DO-215AA package supports automated SMT placement and meets MSL Level 1 reflow profile (260 °C peak).
The SMBG24CHE3/52 delivers 600 W peak pulse power handling under 10/1000 µs waveform with 0.01% duty cycle, and exhibits fast response time (<1.0 ps) due to low junction capacitance (typ. <200 pF at 1 MHz, zero bias). It is rated for TJ = –55 °C to +150 °C and qualified to AEC-Q101 for automotive-grade reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 24 V - Maximum continuous reverse operating voltage before clamping begins; defines safe signal line operating margin. |
| VBR min/max | 26.7 V / 29.5 V at IT = 1.0 mA - Confirmed breakdown range ensures reliable turn-on during overvoltage events. |
| VC @ IPPM | 38.9 V at 15.4 A - Clamping voltage limits downstream IC stress during 10/1000 µs surge; critical for MOSFET/gate driver protection. |
| PPPM | 600 W - Peak pulse power rating determines survivability against repetitive transients like load dump or ESD. |
| TJ max | +150 °C - Junction temperature limit enables use in under-hood automotive environments and high-power industrial enclosures. |
| RθJA | 100 °C/W - Thermal resistance informs PCB copper pad sizing (0.2" × 0.2" per terminal) for thermal derating above 25 °C ambient. |
| AEC-Q101 | Qualified - Validates robustness for automotive applications including engine control units, body electronics, and ADAS sensors. |
Pinout & Package
DO-215AA (SMBG) surface-mount package with gull-wing leads; bi-directional construction has no polarity marking - terminals are interchangeable. Matte tin-plated leads meet J-STD-002 solderability and JESD 22-B102 mechanical integrity requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional avalanche junction | No functional distinction between terminals; either lead connects to protected line or ground - simplifies layout routing. |
| Case (exposed metal) | Thermal conduction path | Not electrically connected; serves only as heat sink - requires isolation from adjacent traces and planes. |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping | Enables single-device protection of AC-coupled or differential signal lines (e.g., CAN, LIN, RS-485) without polarity concerns. |
| AEC-Q101 qualification | Validates long-term reliability under automotive thermal cycling, humidity, and mechanical shock conditions per ISO/TS 16949. |
| 600 W peak pulse power | Supports IEC 61000-4-5 Level 4 (4 kV surge) compliance when paired with appropriate series impedance on protected lines. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking - reduces manufacturing overhead in high-volume SMT lines. |
| Glass passivated junction | Ensures stable VBR over lifetime and prevents parameter drift under humidity or temperature stress in harsh environments. |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine bay modules exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Voltage clamping element placed between sensor output and microcontroller ADC input. Use Value: Limits transient excursions to ≤38.9 V, preventing ADC saturation and internal ESD damage in AEC-Q100 Grade 2 MCUs. |
Use Scenario: Shielding 24 V DC digital input channels on PLC backplanes from inductive kickback during solenoid switching. IC Role / Device Role / Timing Role: Primary surge shunt located at connector entry point before optocoupler or Schmitt trigger input stage. Use Value: Absorbs 600 W surges without degradation, maintaining signal integrity across 100,000+ switching cycles per IEC 61000-4-4. |
| Telecom Line Interface | Consumer Power Adapter Input |
|
Use Scenario: Safeguarding Ethernet PHY interface pins (e.g., MDI-X pairs) against lightning-induced common-mode surges in outdoor access points. IC Role / Device Role / Timing Role: Bi-directional TVS mounted differential across each twisted pair, referenced to chassis ground. Use Value: Symmetrical clamping ensures balanced suppression without skewing differential signaling; VC ≤38.9 V preserves IEEE 802.3 compliance. |
Use Scenario: Secondary-side transient suppression on 5 V/12 V USB-C PD adapter outputs exposed to hot-plug and cable discharge events. IC Role / Device Role / Timing Role: Final-stage clamp after DC-DC converter, before USB port controller and Type-C CC logic. Use Value: Low leakage (<1.0 µA) avoids standby current penalty; 150 °C TJ rating sustains performance in thermally constrained adapter housings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24CA-E3/52 | Same VWM (24 V), but lower PPPM (400 W); RθJA = 110 °C/W; commercial-grade (non-AEC-Q101). | Lacks automotive qualification; suitable for consumer/industrial designs where AEC-Q101 is not mandated. | Select SMBJ24CA-E3/52 only if cost sensitivity outweighs automotive reliability requirements and surge energy stays below 400 W. |
| SMAJ24AHE3/A | Lower power rating (400 W), SMA package (smaller footprint, higher RθJA = 140 °C/W), same AEC-Q101 qualification. | Reduced surge handling and thermal performance; limited to low-energy transients or space-constrained layouts. | Choose SMAJ24AHE3/A only when board area is critical and peak surge current remains ≤10 A per IEC 61000-4-5. |
Compared with SMBG24CHE3/52, SMBJ24CA-E3/52 offers lower cost but sacrifices automotive qualification and 33% peak power margin, while SMAJ24AHE3/A trades thermal robustness and surge capacity for compactness - making SMBG24CHE3/52 optimal for demanding automotive and industrial deployments requiring full 600 W headroom and proven AEC-Q101 endurance.
Availability
SMBG24CHE3/52 is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, telecom infrastructure equipment, and consumer power adapters requiring stable component supply across extended production lifecycles.
Supply support for SMBG24CHE3/52 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 high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The SMBG series was engineered specifically for high-energy transient suppression in AEC-Q101-compliant automotive systems and ruggedized industrial controls - emphasizing thermal stability, repeatable clamping, and automated assembly compatibility.
FAQ
What is the clamping voltage of SMBG24CHE3/52 at its rated peak pulse current?
The SMBG24CHE3/52 has a maximum clamping voltage (VC) of 38.9 V at 15.4 A peak pulse current (IPPM), measured under the standard 10/1000 µs waveform. This value is guaranteed across the full operating temperature range and ensures downstream circuitry remains within safe voltage limits during surge events. The SMBG24CHE3/52 maintains this clamping performance with minimal variation due to its glass-passivated junction and AEC-Q101-validated construction.
Is SMBG24CHE3/52 suitable for automotive applications?
Yes, SMBG24CHE3/52 is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments with operating junction temperatures up to +150 °C. Its HE3 suffix denotes AEC-Q101 qualification, RoHS compliance, and JESD 201 Class 2 whisker resistance - making it appropriate for engine control units, ADAS sensors, and body electronics where reliability under thermal and mechanical stress is mandatory. The SMBG24CHE3/52 meets these requirements without derating at typical automotive ambient conditions.
How does the bi-directional design of SMBG24CHE3/52 affect PCB layout?
The SMBG24CHE3/52 has no polarity marking and identical electrical behavior in both directions, eliminating orientation constraints during placement. Engineers can route either terminal to the protected line and the other to ground without affecting clamping performance - simplifying layout, reducing assembly errors, and enabling symmetric protection of differential pairs. This symmetry is especially valuable in CAN, LIN, and RS-485 interfaces where SMBG24CHE3/52 is often deployed across both signal lines with shared ground reference.
What is the thermal resistance of SMBG24CHE3/52, and how does it impact heatsinking?
The SMBG24CHE3/52 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 standard JEDEC test conditions and guides minimum pad sizing for thermal management. In practice, the SMBG24CHE3/52 does not require external heatsinks but relies on adequate PCB copper area to dissipate surge energy; exceeding ambient temperature limits without sufficient copper will cause premature thermal shutdown or parametric shift during repetitive surges.
Does SMBG24CHE3/52 meet moisture sensitivity level (MSL) requirements for lead-free reflow?
Yes, SMBG24CHE3/52 meets MSL Level 1 per J-STD-020, meaning it has unlimited floor life and withstands standard lead-free reflow profiles with a maximum peak temperature of 260 °C. This eliminates the need for baking prior to assembly and supports high-throughput SMT lines without moisture-related defects such as popcorning or delamination. The SMBG24CHE3/52 achieves this through robust molding compound (UL 94 V-0 rated) and hermetic glass passivation of the silicon die.
SMBG24CHE3/52 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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 24V
- Voltage - Breakdown (Min):
- 26.7V
- Voltage - Clamping (Max) @ Ipp:
- 43V
- Current - Peak Pulse (10/1000µs):
- 14A
- 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)
SMBG24CHE3/52 FAQ
1.How can I place an order for SMBG24CHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG24CHE3/52 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 SMBG24CHE3/52 reliable?
The price and inventory of SMBG24CHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG24CHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBG24CHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG24CHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG24CHE3/52?
SMBG24CHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG24CHE3/52 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 SMBG24CHE3/52?
For technical support, including SMBG24CHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG24CHE3/52 requirements.
6.How does Aetrix verify that SMBG24CHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG24CHE3/52 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 SMBG24CHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBG24CHE3/52?
All SMBG24CHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG24CHE3/52, 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 SMBG24CHE3/52 part is unused and in its original packaging.
Return procedure for SMBG24CHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG24CHE3/52 Tags
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