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Vishay General Semiconductor - Diodes Division SMCG11CAHE3/57T
- Part No.:
- SMCG11CAHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG11CAHE3/57T.pdf
- Description:
- TVS DIODE 11VWM 18.2VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,737
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Product details
Overview
SMCG11CAHE3/57T from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) package, designed for robust overvoltage protection of sensitive electronics. It features a 11 V stand-off voltage (VWM), 12.2–13.5 V breakdown voltage (VBR) at 1 mA, 1500 W peak pulse power (10/1000 µs), clamping voltage of 18.2 V at 82.4 A IPPM, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMCG11CAHE3/57T datasheet, SMCG11CAHE3/57T pinout, SMCG11CAHE3/57T application, or SMCG11CAHE3/57T equivalent, this device is selected for high-reliability surge suppression on signal lines, power rails, and sensor interfaces where bidirectional clamping, low clamping ratio, and automotive-grade reliability are required.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with identical VBR min/max (12.2 V / 13.5 V), ID ≤ 1.0 µA at VWM, and VC = 18.2 V at IPPM = 82.4 A under 10/1000 µs waveform. Its glass-passivated junction ensures stable leakage and fast response (< 1 ns), while the DO-215AB package supports automated SMT placement and meets UL 94 V-0 flammability.
Thermal performance is defined by RθJA = 75 °C/W and RθJL = 15 °C/W, enabling operation up to TJ = +150 °C. The device is rated for non-repetitive surge currents up to 82.4 A (10/1000 µs) and complies with ANSI/IEEE C62.35 standards for surge protectors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 11 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin for 12 V nominal systems. |
| VBR (min/max) | 12.2 V / 13.5 V at IT = 1 mA - Confirmed breakdown threshold range; ensures predictable turn-on during transients without premature conduction. |
| VC @ IPPM | 18.2 V at 82.4 A - Clamped voltage during 10/1000 µs surge; limits downstream IC stress to safe levels in automotive CAN/LIN or sensor lines. |
| PPPM | 1500 W - Peak pulse power handling capability; supports IEC 61000-4-5 Level 4 (4 kV) surge immunity when properly laid out. |
| ID @ VWM | ≤ 1.0 µA - Ultra-low reverse leakage at stand-off voltage; preserves signal integrity and minimizes standby power loss. |
| TJ max. | +150 °C - Maximum junction temperature rating; enables deployment in under-hood automotive environments and industrial enclosures. |
| AEC-Q101 | Qualified - Validated for automotive electronic modules per stress test requirements including HTOL, TCT, and ESD; supports PPAP compliance. |
Pinout & Package
Package: SMCG (DO-215AB) - surface-mount, gull-wing leaded case with matte tin-plated terminals, MSL Level 1 (260 °C peak reflow), UL 94 V-0 molding compound. Bidirectional construction means no polarity marking; both terminals are functionally identical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity; symmetrical conduction enables protection without orientation constraints. |
| Terminal 2 | Anode/Cathode (bidirectional) | Electrically identical to Terminal 1; no marking required; simplifies PCB layout and eliminates assembly errors. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or differential signal lines (e.g., RS-485, CAN bus) without external polarity management. |
| AEC-Q101 qualification | Validates reliability for automotive powertrain, body control, and ADAS modules-reducing qualification time for Tier 1 suppliers. |
| 1500 W peak pulse power | Withstands IEC 61000-4-5 combination wave surges up to 4 kV (2 Ω source impedance) when mounted on 8 mm × 8 mm copper pads. |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes voltage overshoot during transients-critical for protecting 3.3 V or 5 V logic interfaces adjacent to 12 V supply domains. |
| MSL Level 1 moisture sensitivity | Allows indefinite floor life and standard reflow profiles without baking-reducing manufacturing overhead and yield risk. |
Applications
| Automotive Sensor Protection | CAN Bus Transient Suppression |
|---|---|
|
Use Scenario: Protecting analog output sensors (e.g., pressure, temperature) in engine control units exposed to load dump and inductive switching noise. IC Role / Device Role / Timing Role: Bidirectional TVS placed across sensor output and ground to clamp ±20 V transients before they reach ADC input or signal conditioner. Use Value: Prevents sensor signal corruption and microcontroller reset events caused by ISO 7637-2 Pulse 1/2a/5a surges, leveraging 18.2 V clamping and AEC-Q101 reliability. |
Use Scenario: Safeguarding high-speed CAN FD transceivers (e.g., TCAN1042) against ESD and coupled surges on vehicle wiring harnesses. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS connected between CANH and CANL lines to suppress common-mode transients without distorting data eye. Use Value: Maintains signal integrity up to 5 Mbps by limiting differential overshoot to < 18.2 V while meeting ISO 11898-2 EMC requirements. |
| Industrial PLC I/O Protection | Consumer Power Adapter Input Stage |
|
Use Scenario: Shielding digital input modules in programmable logic controllers from field-wiring induced surges in factory automation environments. IC Role / Device Role / Timing Role: TVS installed at terminal block entry point to shunt 1 kV/40 Ω surges away from optocoupler inputs and level-shifting circuitry. Use Value: Ensures >100,000 surge cycles endurance with < 1 ns response and no degradation in leakage (≤1 µA), supporting 20-year industrial deployments. |
Use Scenario: Secondary-side overvoltage protection in USB-C PD adapters and smart home power supplies subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Bidirectional clamp across isolated 5–20 V output rails to prevent damage to USB-PD controllers and load switches during output short-circuit recovery. Use Value: Delivers 1500 W surge handling with 11 V stand-off-enabling compact design without additional crowbar circuitry while passing UL 62368-1 Annex D tests. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ11CA | Same VWM (11 V) and bidirectional configuration, but lower PPPM (400 W) and higher VC (18.5 V at 21.7 A); SMA (DO-214AC) package. | Limited to lower-energy transients (IEC 61000-4-5 Level 2); unsuitable for automotive load-dump scenarios requiring 1500 W. | Select SMAJ11CA only for cost-sensitive consumer applications with verified < 400 W surge exposure and space-constrained layouts favoring SMA footprint. |
| 1.5KE11CA | Higher PPPM (1500 W) but axial-leaded (DO-201AD) package; larger size, manual assembly required; VC = 18.2 V at 70 A. | Not suitable for automated SMT production; incompatible with high-density PCBs; lacks AEC-Q101 qualification. | Choose 1.5KE11CA only for prototyping, legacy through-hole designs, or repair scenarios where reflow compatibility and automotive qualification are not required. |
Compared with SMAJ11CA and 1.5KE11CA, SMCG11CAHE3/57T uniquely combines automotive qualification, SMT manufacturability, and full 1500 W surge capacity in a low-profile DO-215AB package-making it the optimal choice for volume automotive and industrial SMT production.
Availability
SMCG11CAHE3/57T is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, and high-reliability power adapter designs requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant surge protection.
Supply support for SMCG11CAHE3/57T 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 optimization.
The SMCG series is engineered for high-energy transient suppression in harsh environments-targeting automotive, industrial, and telecom applications where AEC-Q101 compliance, low clamping voltage, and SMT scalability are mandatory.
FAQ
What is the clamping voltage of SMCG11CAHE3/57T and how is it measured?
The clamping voltage (VC) of SMCG11CAHE3/57T is 18.2 V, measured at a peak pulse current (IPPM) of 82.4 A using the standardized 10/1000 µs double-exponential surge waveform. This value is guaranteed per the Vishay datasheet (Document Number 88457, Rev. 09-Jan-2024) and reflects the maximum voltage seen across the device during worst-case transient events-critical for ensuring downstream ICs remain within absolute maximum ratings. SMCG11CAHE3/57T maintains this clamping performance across its full operating temperature range.
Is SMCG11CAHE3/57T suitable for automotive applications?
Yes, SMCG11CAHE3/57T is AEC-Q101 qualified (per note on page 3 of the datasheet), making it suitable for automotive applications including engine control units, body electronics, and ADAS sensor interfaces. Its bidirectional architecture, 1500 W surge rating, and operation up to +150 °C junction temperature meet stringent automotive environmental and reliability requirements. SMCG11CAHE3/57T is explicitly listed in Vishay's AEC-Q101 qualified product table for the SMCG family.
What does the "HE3" suffix indicate in SMCG11CAHE3/57T?
The "HE3" suffix in SMCG11CAHE3/57T denotes RoHS-compliant construction with AEC-Q101 qualification (per mechanical data section, page 1). "H" indicates AEC-Q101 qualification, "E3" specifies RoHS-compliant, industrial-grade plating and molding. The "57T" denotes packaging in 7-inch plastic tape and reel, with 850 units per reel-optimized for high-volume SMT assembly. This suffix distinguishes it from non-automotive variants like SMCG11CA-E3/57T.
How does SMCG11CAHE3/57T differ from unidirectional versions like SMCG11AHE3/57T?
SMCG11CAHE3/57T is bidirectional (denoted by "CA"), providing symmetrical clamping for both positive and negative transients, whereas SMCG11AHE3/57T is unidirectional ("A") with cathode marking and forward conduction capability. The CA version has identical VBR min/max (12.2 V / 13.5 V) in both directions and no polarity marking-ideal for AC or differential lines. SMCG11CAHE3/57T also omits IFSM rating (unidirectional-only parameter) and exhibits slightly higher ID (≤1.0 µA vs. ≤5.0 µA for unidirectional at same VWM).
What PCB layout guidelines apply to SMCG11CAHE3/57T for optimal surge performance?
For optimal surge performance, SMCG11CAHE3/57T must be mounted on minimum 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal, as specified in the datasheet (page 2, note 2). Short, wide traces to protected nodes minimize inductance; ground planes should be solid beneath the device. Thermal relief is discouraged-full copper connection maximizes heat dissipation and sustains 1500 W pulse handling. Avoid vias near terminals to prevent impedance discontinuities that degrade clamping response. SMCG11CAHE3/57T achieves rated PPPM only with this validated layout.
SMCG11CAHE3/57T 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:
- -
- Bidirectional Channels:
- 1
- 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)
SMCG11CAHE3/57T FAQ
1.How can I place an order for SMCG11CAHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG11CAHE3/57T 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 SMCG11CAHE3/57T reliable?
The price and inventory of SMCG11CAHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG11CAHE3/57T is usually 5 days.
3.What payment methods are accepted for SMCG11CAHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG11CAHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG11CAHE3/57T?
SMCG11CAHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG11CAHE3/57T 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 SMCG11CAHE3/57T?
For technical support, including SMCG11CAHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG11CAHE3/57T requirements.
6.How does Aetrix verify that SMCG11CAHE3/57T is sourced from the original manufacturer or authorized distributors?
All SMCG11CAHE3/57T 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 SMCG11CAHE3/57T meets industry standards.
7.What is the process for return or replacement of SMCG11CAHE3/57T?
All SMCG11CAHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCG11CAHE3/57T, 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 SMCG11CAHE3/57T part is unused and in its original packaging.
Return procedure for SMCG11CAHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG11CAHE3/57T Tags
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