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Vishay General Semiconductor - Diodes Division SMCG24A-E3/57T
- Part No.:
- SMCG24A-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG24A-E3/57T.pdf
- Description:
- TVS DIODE 24VWM 38.9VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,074
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Product details
Overview
SMCG24A-E3/57T from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) surface-mount 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, 1500 W peak pulse power (10/1000 µs), clamping voltage of 38.9 V at 38.6 A IPPM, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the SMCG24A-E3/57T datasheet, SMCG24A-E3/57T pinout, SMCG24A-E3/57T application, or SMCG24A-E3/57T equivalent, this device is selected for high-energy surge suppression in automotive power lines, industrial sensor interfaces, and DC power rail protection where low clamping voltage, fast response (<1 ns), and MSL Level 1 reflow compatibility are critical design requirements.
Technical Context
The SMCG24A-E3/57T operates as a unidirectional avalanche diode with glass-passivated junction, delivering precise voltage clamping during transients induced by inductive load switching or ESD events. Its 1500 W PPPM rating supports IEC 61000-4-5 Level 4 compliance when applied with appropriate PCB layout (8.0 mm × 8.0 mm copper pads per terminal).
Thermal performance is defined by RθJA = 75 °C/W and RθJL = 15 °C/W, enabling reliable operation up to TJ = +150 °C. The device exhibits <1.0 µA reverse leakage at VWM and maintains stable clamping under repetitive surges when derated per Fig. 2 in the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 24 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC signal rail margin. |
| VBR (min/max) | 26.7 V / 29.5 V at IT = 1 mA - Ensures predictable avalanche turn-on across manufacturing lot and temperature range. |
| VC @ IPPM | 38.9 V at 38.6 A - Clamping voltage limits downstream IC stress during 10/1000 µs surge; critical for MOSFET gate or MCU I/O protection. |
| PPPM | 1500 W - Peak pulse power handling capability per standard 10/1000 µs waveform; enables robustness against lightning-induced surges. |
| ID @ VWM | ≤1.0 µA - Ultra-low leakage preserves signal integrity and battery life in always-on circuits. |
| TJ max. | +150 °C - Supports under-hood automotive environments and industrial enclosures without thermal derating penalties. |
| AEC-Q101 | Qualified - Validated for automotive applications including engine control units, body electronics, and ADAS sensor interfaces. |
Pinout & Package
Package: SMCG (DO-215AB) - Low-profile, surface-mount gull-wing package with matte tin-plated leads, compliant with J-STD-002 and JESD 22-B102 solderability standards. Meets UL 94 V-0 flammability rating and MSL Level 1 (peak reflow 260 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts surge current to ground during overvoltage events. |
| Anode | Reference/ground return path | Typically tied to system ground plane; completes clamping path with minimal inductance for sub-nanosecond response. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a), improving protection margin. |
| MSL Level 1 rating | Enables single-pass reflow assembly without baking; eliminates moisture-related popcorning risk. |
| AEC-Q101 qualification | Validates performance across -55 °C to +150 °C, vibration, mechanical shock, and HTOL stress for automotive deployment. |
| RoHS-compliant (E3 suffix) | Meets industrial environmental compliance requirements without halogen-free trade-offs in surge performance. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 24 V supply rails in vehicle body control modules from load dump and alternator transients. IC Role / Device Role: Unidirectional TVS placed between battery rail and LDO input to clamp spikes up to ±100 V. Use Value: Limits clamped voltage to 38.9 V, preventing damage to 40 V-rated regulators and ensuring ASIL-B functional safety compliance. |
Use Scenario: Shielding analog outputs of pressure/temperature sensors in factory automation PLC I/O modules. IC Role / Device Role: TVS on 4–20 mA loop output line to absorb ESD and inductive kickback from solenoid drivers. Use Value: Sub-1 ns response and 1.0 µA leakage preserve signal accuracy while surviving repeated 8 kV contact ESD events. |
| DC-DC Converter Input Protection | Automotive Camera Module Power Rail |
|
Use Scenario: Safeguarding buck converter inputs in telecom power supplies exposed to lightning-induced surges on PoE or AC-DC front ends. IC Role / Device Role: Primary clamping device upstream of input filter capacitor, absorbing energy before it reaches controller IC. Use Value: 1500 W PPPM rating handles IEC 61000-4-5 combination wave (1.2/50 µs & 8/20 µs) without degradation over 1000+ cycles. |
Use Scenario: Protecting 12 V power input of rear-view camera modules mounted near vehicle chassis. IC Role / Device Role: Unidirectional TVS on camera module's main power line, referenced to chassis ground. Use Value: AEC-Q101 qualification ensures survival through automotive temperature cycling (-40 °C to +105 °C ambient) and mechanical vibration testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A-E3/57T | Lower PPPM (400 W), SMA (DO-214AC) package, higher RθJA (110 °C/W), same VWM/VBR range. | Not qualified to AEC-Q101; suitable for consumer/industrial but not automotive under-hood use. | Select when cost sensitivity outweighs automotive qualification and surge energy is ≤400 W. |
| SMCJ24A-E3/57T | Same 1500 W PPPM and DO-214AB package, but larger footprint (7.11 mm × 6.22 mm vs. SMCG's 7.11 mm × 5.59 mm), higher VF. | Compatible with legacy SMC layouts; lacks MSL Level 1 rating (MSL Level 2), requiring bake prior to reflow. | Choose for drop-in replacement in existing SMC-based designs where board space allows and MSL Level 1 is not required. |
Compared with SMAJ24A-E3/57T and SMCJ24A-E3/57T, the SMCG24A-E3/57T delivers identical surge robustness in a smaller, automotive-qualified, and reflow-ready package-making it optimal for space-constrained, high-reliability 24 V systems where thermal management and process yield are critical.
Availability
SMCG24A-E3/57T is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, and DC-DC converter input stages requiring stable component supply, AEC-Q101 validation, and consistent 1500 W surge immunity.
Supply support for SMCG24A-E3/57T 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, and protection devices with emphasis on reliability, precision, and application-specific qualification.
The SMCG series was engineered for high-energy transient suppression in automotive and industrial environments, combining AEC-Q101 qualification, low-profile packaging, and tightly controlled clamping parameters for mission-critical power and signal line protection.
FAQ
What is the clamping voltage of SMCG24A-E3/57T at its rated peak pulse current?
The SMCG24A-E3/57T has a maximum clamping voltage (VC) of 38.9 V at its rated peak pulse current (IPPM) of 38.6 A, measured under the standard 10/1000 µs waveform. This value is guaranteed across temperature and ensures protected downstream components see no more than 38.9 V during surge events. The SMCG24A-E3/57T achieves this with low incremental resistance and a glass-passivated junction for stable performance.
Is SMCG24A-E3/57T suitable for automotive applications?
Yes, SMCG24A-E3/57T is AEC-Q101 qualified and specifically designed for automotive use, including body control modules, lighting systems, and camera power rails. Its operating junction temperature range of -55 °C to +150 °C, MSL Level 1 reflow compatibility, and validation across thermal cycling and mechanical shock make it appropriate for under-hood and cabin-mounted electronics. The SMCG24A-E3/57T meets these requirements without derating in typical automotive ambient conditions.
What does the "E3/57T" suffix indicate in SMCG24A-E3/57T?
The "E3" suffix denotes RoHS-compliant, industrial-grade construction with matte tin-plated leads meeting J-STD-002 solderability. The "57T" indicates packaging in 7-inch diameter plastic tape and reel, with a base quantity of 850 units per reel. This configuration supports automated SMT placement and is optimized for high-volume manufacturing. The SMCG24A-E3/57T ordering code ensures traceable, standardized logistics for production ramp-up.
How does SMCG24A-E3/57T compare to bidirectional TVS diodes like SMCG24CA?
The SMCG24A-E3/57T is unidirectional and intended for DC line protection with polarity-sensitive placement (cathode toward protected line), whereas SMCG24CA is bidirectional and used in AC or floating signal paths. The SMCG24A-E3/57T offers lower leakage (<1.0 µA) and tighter VBR tolerance for DC applications, while SMCG24CA provides symmetrical clamping but higher ID (≤1000 µA). Select SMCG24A-E3/57T for 24 V power rails; avoid substituting without verifying circuit polarity and leakage constraints.
What PCB layout guidelines apply to SMCG24A-E3/57T for optimal surge performance?
For rated 1500 W performance, Vishay specifies mounting SMCG24A-E3/57T on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal, with short, wide traces to minimize inductance. Thermal vias under pads improve heat dissipation, especially in high-duty-cycle applications. Avoid narrow traces or stubs between the SMCG24A-E3/57T and protected node-layout directly impacts clamping voltage rise time and effective PPPM utilization.
SMCG24A-E3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-215AB, SMC 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):
- 38.6A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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-214AB (SMCG)
SMCG24A-E3/57T FAQ
1.How can I place an order for SMCG24A-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG24A-E3/57T 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 SMCG24A-E3/57T reliable?
The price and inventory of SMCG24A-E3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG24A-E3/57T is usually 5 days.
3.What payment methods are accepted for SMCG24A-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG24A-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG24A-E3/57T?
SMCG24A-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG24A-E3/57T 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 SMCG24A-E3/57T?
For technical support, including SMCG24A-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG24A-E3/57T requirements.
6.How does Aetrix verify that SMCG24A-E3/57T is sourced from the original manufacturer or authorized distributors?
All SMCG24A-E3/57T 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 SMCG24A-E3/57T meets industry standards.
7.What is the process for return or replacement of SMCG24A-E3/57T?
All SMCG24A-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCG24A-E3/57T, 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 SMCG24A-E3/57T part is unused and in its original packaging.
Return procedure for SMCG24A-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG24A-E3/57T Tags
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