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Vishay General Semiconductor - Diodes Division SMCG11AHE3/57T
- Part No.:
- SMCG11AHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG11AHE3/57T.pdf
- Description:
- TVS DIODE 11VWM 18.2VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,911
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Product details
Overview
SMCG11AHE3/57T from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) package, designed for robust overvoltage protection of sensitive electronics. It features a 12.2 V minimum breakdown voltage (VBR), 11 V standoff voltage (VWM), 1500 W peak pulse power (10/1000 µs), 82.4 A peak pulse current (IPPM), and clamps to 18.2 V at IPPM. It is AEC-Q101 qualified and used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial systems.
For engineers reviewing the SMCG11AHE3/57T datasheet, SMCG11AHE3/57T pinout, SMCG11AHE3/57T application, or SMCG11AHE3/57T equivalent, this device is selected for high-energy transient suppression in space-constrained surface-mount designs requiring automotive-grade reliability, low clamping voltage, and fast response time without sacrificing surge current capability.
Technical Context
The SMCG11AHE3/57T operates as a unidirectional avalanche diode with glass-passivated junction, delivering precise voltage clamping during ESD and lightning-induced transients. Its 1500 W PPPM rating is validated under standardized 10/1000 µs waveform conditions, and its 75 °C/W junction-to-ambient thermal resistance assumes mounting on 8.0 mm × 8.0 mm copper pads per terminal.
It exhibits 5.0 µA maximum reverse leakage at VWM = 11 V and achieves full clamping response within picoseconds-typical of silicon avalanche TVS devices. The device is rated for continuous operation from −55 °C to +150 °C and meets J-STD-020 MSL Level 1 reflow compatibility with 260 °C peak temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min) | 12.2 V - Ensures reliable avalanche conduction onset above normal operating voltage |
| VWM | 11 V - Maximum continuous reverse voltage before significant leakage begins |
| IPPM | 82.4 A - Peak surge current it safely clamps without failure under 10/1000 µs transient |
| VC @ IPPM | 18.2 V - Clamped voltage seen by protected circuit during worst-case surge |
| PPPM | 1500 W - Energy-handling capacity for short-duration transients per IEEE C62.35 |
| TJ max | +150 °C - Enables use in under-hood automotive environments and high-power industrial enclosures |
| RθJA | 75 °C/W - Thermal performance baseline assuming specified 8 mm × 8 mm copper pad layout |
Pinout & Package
Package: SMCG (DO-215AB) - low-profile, surface-mount case with matte tin-plated leads, RoHS-compliant and AEC-Q101 qualified. Cathode indicated by band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to ground or low-side reference | Provides return path for surge current during clamping in unidirectional configuration |
| Cathode | Current exit point in forward bias; marked with band | Connected to protected line (e.g., signal or power rail) to divert transients to ground |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity |
| MSL Level 1 rating | Supports single-reflow assembly without moisture sensitivity concerns up to 260 °C peak |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 Pulse 1/2a) |
| UL 94 V-0 molding compound | Meets flammability safety requirements for enclosed industrial and transportation equipment |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and alternator transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp surges exceeding 11 V. Use Value: Limits voltage to ≤18.2 V during 82.4 A transients, preventing damage to downstream DC-DC converters and microcontrollers. | Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loops) from ESD and inductive switching noise in factory automation. IC Role / Device Role / Timing Role: Bidirectional-capable variant not applicable; SMCG11AHE3/57T used in unidirectional configuration on supply-referenced signal paths. Use Value: Sub-10 ns response ensures clamping occurs before transient energy reaches precision op-amps or ADC front-ends. |
| Consumer Device USB Port Protection | Telecom Base Station DC Feed Protection |
Use Scenario: Safeguarding USB VBUS and D+/D− lines in portable docking stations exposed to human-body-model ESD. IC Role / Device Role / Timing Role: Paired unidirectional TVS on VBUS (SMCG11AHE3/57T) and bidirectional arrays on data lines. Use Value: 11 V VWM avoids interference with 5 V USB signaling while clamping 15 kV HBM events to safe levels. | Use Scenario: Protecting −48 V DC power feeds in outdoor telecom cabinets from lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Mounted at cabinet entry point to shunt surge current before reaching PoE injectors or RF amplifiers. Use Value: 1500 W PPPM rating handles multi-kA induced surges typical in telco infrastructure per IEC 61000-4-5. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ11A-E3/57T | Same VWM (11 V) and VC (18.2 V), but lower PPPM (400 W) and IPPM (22.5 A) | Suitable for lower-energy ESD-only scenarios; insufficient for ISO 7637-2 load dump | Select SMCG11AHE3/57T when >1 kW surge handling is required in automotive or industrial settings |
| 1.5KE11A | Through-hole TO-204AA (DO-41); same VWM/VC, but higher RθJA (100 °C/W) and no AEC-Q101 qualification | Used in legacy industrial power supplies where board space and automotive qualification are not constraints | Choose SMCG11AHE3/57T for new SMT designs demanding AEC-Q101 compliance and thermal efficiency |
Compared with SMAJ11A-E3/57T and 1.5KE11A, the SMCG11AHE3/57T delivers 3.75× higher peak pulse power in a compact surface-mount package with automotive-grade reliability, making it optimal for next-generation ECU, ADAS, and industrial IoT node designs where space, surge margin, and qualification rigor are critical.
Availability
SMCG11AHE3/57T is available at Aetrix Electronics and suitable for automotive power line protection, industrial sensor interface protection, consumer device USB port protection, and telecom base station DC feed protection requiring stable component supply across production lifecycles.
Supply support for SMCG11AHE3/57T 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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific validation.
The SMCG series was developed for high-energy transient suppression in space-constrained, high-reliability applications-including automotive electronics, industrial controls, and telecom infrastructure-where AEC-Q101 qualification and consistent clamping performance are mandatory.
FAQ
What is the breakdown voltage range of the SMCG11AHE3/57T?
The SMCG11AHE3/57T has a guaranteed breakdown voltage (VBR) range of 12.2 V to 13.5 V at 1.0 mA test current, per Vishay's datasheet revision 09-Jan-2024. This tight tolerance ensures predictable clamping onset and supports robust design margins in 12 V system protection. The SMCG11AHE3/57T is verified to meet this specification under standard test conditions.
Is the SMCG11AHE3/57T suitable for automotive applications?
Yes, the SMCG11AHE3/57T is AEC-Q101 qualified and explicitly rated for automotive use, including engine control modules, body electronics, and ADAS sensor interfaces. Its construction-glass-passivated junction, MSL Level 1 reflow compatibility, and −55 °C to +150 °C operating range-meets stringent automotive environmental and reliability requirements. The SMCG11AHE3/57T is listed in Vishay's AEC-Q101 qualified product matrix.
What is the maximum clamping voltage of the SMCG11AHE3/57T at rated surge current?
The SMCG11AHE3/57T clamps to a maximum of 18.2 V at its rated peak pulse current (IPPM) of 82.4 A under the standardized 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during worst-case transient events. The SMCG11AHE3/57T maintains this clamping performance across its full operating temperature range.
Does the SMCG11AHE3/57T have polarity marking, and how is it oriented in circuit?
Yes, the SMCG11AHE3/57T features a cathode band marking on the SMCG (DO-215AB) package. In unidirectional configuration, the cathode connects to the line being protected (e.g., 12 V rail), and the anode connects to ground. This orientation ensures avalanche conduction during positive transients on the protected line. The SMCG11AHE3/57T must be installed with correct polarity to function as intended.
What packaging format is supplied for the SMCG11AHE3/57T?
The SMCG11AHE3/57T is supplied in 7-inch diameter plastic tape and reel format (package code 57T), with 850 units per reel. This packaging supports automated SMT placement and complies with EIA-481 standards. The "HE3" suffix confirms RoHS compliance and AEC-Q101 qualification. The SMCG11AHE3/57T reel is compatible with standard pick-and-place equipment using DO-215AB footprint tooling.
SMCG11AHE3/57T 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):
- 11V
- Voltage - Breakdown (Min):
- 12.2V
- Voltage - Clamping (Max) @ Ipp:
- 18.2V
- Current - Peak Pulse (10/1000µs):
- 82.4A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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-214AB (SMCG)
SMCG11AHE3/57T FAQ
1.How can I place an order for SMCG11AHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG11AHE3/57T 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 SMCG11AHE3/57T reliable?
The price and inventory of SMCG11AHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG11AHE3/57T is usually 5 days.
3.What payment methods are accepted for SMCG11AHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG11AHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG11AHE3/57T?
SMCG11AHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG11AHE3/57T 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 SMCG11AHE3/57T?
For technical support, including SMCG11AHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG11AHE3/57T requirements.
6.How does Aetrix verify that SMCG11AHE3/57T is sourced from the original manufacturer or authorized distributors?
All SMCG11AHE3/57T 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 SMCG11AHE3/57T meets industry standards.
7.What is the process for return or replacement of SMCG11AHE3/57T?
All SMCG11AHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCG11AHE3/57T, 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 SMCG11AHE3/57T part is unused and in its original packaging.
Return procedure for SMCG11AHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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