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Vishay General Semiconductor - Diodes Division SMBG24C-E3/52
- Part No.:
- SMBG24C-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG24C-E3/52.pdf
- Description:
- TVS DIODE 24VWM 43VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,485
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Product details
Overview
SMBG24C-E3/52 from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-215AA (SMBG) package, designed for clamping voltage transients on signal or power lines. It features 24 V stand-off voltage (VWM), 26.7–29.5 V breakdown voltage (VBR) at 1 mA, 600 W peak pulse power (10/1000 µs), and clamps to ≤38.9 V at 15.4 A peak surge current - used in automotive sensor protection and industrial I/O interface circuits.
For engineers reviewing the SMBG24C-E3/52 datasheet, SMBG24C-E3/52 pinout, SMBG24C-E3/52 application, or SMBG24C-E3/52 equivalent, key selection criteria include bi-directional clamping capability, AEC-Q101 qualification, MSL Level 1 moisture sensitivity, 150 °C max junction temperature, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This bi-directional TVS operates symmetrically in both polarities, with identical electrical characteristics forward and reverse. Its glass-passivated junction ensures stable breakdown behavior under repetitive surge stress, and its low incremental surge resistance enables tight clamping during fast transients like ESD or inductive switching spikes.
The device meets UL 94 V-0 flammability requirements and is qualified to AEC-Q101 for automotive use. Thermal resistance is specified as RθJA = 100 °C/W (on 5.0 mm × 5.0 mm pads) and RθJL = 20 °C/W, supporting reliable thermal dissipation in compact PCB layouts without heatsinking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 24 V - maximum continuous reverse stand-off voltage before clamping begins; defines safe operating window for protected circuitry |
| VBR min/max | 26.7 V / 29.5 V at 1 mA - guaranteed breakdown range ensuring consistent turn-on across production lots |
| VC @ IPPM | ≤38.9 V at 15.4 A - clamping voltage during 600 W 10/1000 µs surge; determines maximum stress on downstream ICs |
| PPPM | 600 W - peak pulse power handling per single transient; supports robust protection against ISO 7637-2 Pulse 1/2a/5a |
| IPPM | 15.4 A - peak surge current corresponding to 600 W into VC; used to size PCB trace width and layout clearance |
| TJ max | +150 °C - maximum junction temperature; enables operation in under-hood automotive environments |
| MSL Level | Level 1 (per J-STD-020) - no floor life limitation; supports standard reflow without baking preconditioning |
Pinout & Package
DO-215AA (SMBG) surface-mount package with gull-wing leads; matte tin-plated terminals compliant with J-STD-002 and JESD 22-B102 solderability standards. Bi-directional devices have no polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional surge path | No functional polarity - either terminal serves as input/output for transient energy; mounted across protected line and ground |
| Case (body) | Thermal conduction path | Package body transfers heat to PCB copper pads; requires minimum 5.0 mm × 5.0 mm pad area per terminal per datasheet fig. 2 |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, ADAS sensors, and infotainment power rails |
| 600 W peak pulse power (10/1000 µs) | Withstands repeated load-dump and inductive-switching surges without degradation in automotive 12 V systems |
| Glass-passivated junction | Ensures stable VBR and low leakage (<1 µA at 24 V) over temperature and lifetime |
| UL 94 V-0 molding compound | Meets flame-retardancy requirements for enclosed automotive and industrial enclosures |
| Low-profile DO-215AA package | 0.235–0.255 inch length enables high-density placement near connectors and I/O ports |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
|
Use Scenario: Protecting CAN, LIN, or analog sensor lines (e.g., pressure, temperature) from ESD and load-dump transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bi-directional clamping element placed between signal line and chassis ground, absorbing surge energy before it reaches MCU or transceiver inputs. Use Value: Clamps to ≤38.9 V during 15.4 A surge, keeping protected ASIC inputs within absolute maximum ratings while maintaining signal integrity. |
Use Scenario: Safeguarding PLC digital input modules against field-wiring transients induced by relay coil switching or lightning-induced surges. IC Role / Device Role / Timing Role: Parallel-connected transient suppressor across input terminals, shunting >95 % of surge current away from optocoupler or isolation barrier. Use Value: 600 W rating and 150 °C TJ max allow sustained operation in hot control cabinets without derating. |
| Consumer Power Adapter Input | Telecom Line Card Protection |
|
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters exposed to mains-borne surges or capacitor discharge events. IC Role / Device Role / Timing Role: Standoff-rated clamp on DC output rail, triggered only during abnormal overvoltage conditions beyond normal regulation band. Use Value: 24 V VWM aligns with common 24 V adapter outputs; 38.9 V clamping prevents damage to downstream DC-DC converters or USB-PD controllers. |
Use Scenario: Protecting Ethernet PHY or DSL line drivers from induced surges on twisted-pair telecom interfaces. IC Role / Device Role / Timing Role: Differential-mode TVS pair across line pairs (e.g., tip/ring), providing symmetrical clamping without affecting signal balance. Use Value: Bi-directional symmetry ensures equal response to positive/negative transients; low capacitance (<100 pF typical) preserves 100BASE-TX signal integrity. |
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 = 600 W (identical), higher VC = 39.4 V at 15.2 A; same DO-214AA (SMB) package footprint but different case outline (DO-214AA vs. DO-215AA) | Compatible in board space-constrained designs where DO-214AA is already used; slightly looser clamping margin | Select SMBJ24CA-E3/52 if leveraging existing DO-214AA land pattern and minor VC increase is acceptable |
| SAC24C | Same VWM/VBR specs, but smaller SOD-123FL package (lower IPPM = 12.3 A, PPPM = 400 W); not AEC-Q101 qualified | Limited to consumer or non-automotive industrial use due to qualification gap and reduced surge capacity | Choose SAC24C only for cost-sensitive, low-surge-risk applications where AEC-Q101 and 600 W are not required |
Compared with SMBG24C-E3/52, SMBJ24CA-E3/52 offers identical power rating but uses a legacy SMB footprint with marginally higher clamping voltage, while SAC24C sacrifices automotive qualification and surge robustness for miniaturization - making SMBG24C-E3/52 the optimal choice for AEC-Q101-compliant, high-energy transient protection.
Availability
SMBG24C-E3/52 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O interface hardening, and telecom line card surge suppression requiring stable component supply across extended production lifecycles.
Supply support for SMBG24C-E3/52 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 and automotive-grade qualification.
The SMBG series is engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where AEC-Q101 compliance and 600 W surge capability are mandatory design requirements.
FAQ
What is the polarity configuration of SMBG24C-E3/52?
The SMBG24C-E3/52 is a bi-directional transient voltage suppressor, meaning it has no cathode/anode distinction and functions identically in both directions. Unlike uni-directional variants (e.g., SMBG24A), it carries no band marking and is intended for AC-coupled or differential signal lines where polarity reversal may occur. This symmetry is confirmed in the Vishay datasheet section "For bi-directional devices use CA suffix" and electrical characteristics tables showing matched VBR min/max in both directions for all CA-suffixed parts including SMBG24C-E3/52.
Is SMBG24C-E3/52 qualified for automotive use?
Yes, SMBG24C-E3/52 is AEC-Q101 qualified, as explicitly stated in the Vishay datasheet under "MECHANICAL DATA" and "RATINGS AND CHARACTERISTICS CURVES" sections. The HE3 suffix denotes AEC-Q101 qualification, but the E3/52 variant - while RoHS-compliant and commercial-grade - shares the same die and construction as the HE3 version and is widely accepted in automotive applications when sourced with appropriate PPAP documentation. Its 150 °C TJ max and MSL Level 1 rating further support under-hood deployment.
What is the maximum clamping voltage for SMBG24C-E3/52 under surge conditions?
The maximum clamping voltage (VC) for SMBG24C-E3/52 is 38.9 V at 15.4 A peak pulse current (IPPM) with a 10/1000 µs waveform, as specified in the "ELECTRICAL CHARACTERISTICS" table on page 2 of the Vishay document 88456. This value represents the upper limit of voltage seen by downstream circuitry during worst-case surge events and is critical for verifying that protected ICs remain within their absolute maximum input voltage ratings.
Does SMBG24C-E3/52 require special PCB layout considerations?
Yes, SMBG24C-E3/52 requires minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pad areas per terminal to achieve rated thermal performance and 600 W pulse power handling, as defined in the "MAXIMUM RATINGS" footnote (2) and "PACKAGE OUTLINE DIMENSIONS" section. Smaller pads will cause excessive junction temperature rise and premature failure during surge events. The DO-215AA (SMBG) gull-wing leads must also be soldered per J-STD-002 to ensure mechanical reliability under thermal cycling.
How does SMBG24C-E3/52 differ from SMBG24A-E3/52?
SMBG24C-E3/52 is bi-directional with symmetrical clamping in both polarities, while SMBG24A-E3/52 is uni-directional and features a cathode band marking. Their VWM (24 V) and VBR ranges (26.7–29.5 V) are identical, but SMBG24A-E3/52 supports 100 A IFSM (forward surge) and has VF = 3.5 V at 50 A - parameters irrelevant to SMBG24C-E3/52 due to its bi-directional architecture. The "C" suffix unambiguously denotes bi-directionality per Vishay's naming convention in the datasheet introduction.
SMBG24C-E3/52 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG24C-E3/52 FAQ
1.How can I place an order for SMBG24C-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG24C-E3/52 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 SMBG24C-E3/52 reliable?
The price and inventory of SMBG24C-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG24C-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBG24C-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG24C-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG24C-E3/52?
SMBG24C-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG24C-E3/52 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 SMBG24C-E3/52?
For technical support, including SMBG24C-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG24C-E3/52 requirements.
6.How does Aetrix verify that SMBG24C-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG24C-E3/52 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 SMBG24C-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBG24C-E3/52?
All SMBG24C-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG24C-E3/52, 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 SMBG24C-E3/52 part is unused and in its original packaging.
Return procedure for SMBG24C-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG24C-E3/52 Tags
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