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Vishay General Semiconductor - Diodes Division SMCG13CA-E3/9AT
- Part No.:
- SMCG13CA-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG13CA-E3/9AT.pdf
- Description:
- TVS DIODE 13VWM 21.5VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,643
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Product details
Overview
SMCG13CA-E3/9AT from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) surface-mount package, designed for robust overvoltage protection of sensitive electronics. It features a 13 V stand-off voltage (VWM), 14.4–15.9 V breakdown voltage (VBR) at 1 mA, 1500 W peak pulse power (PPPM), clamping voltage of 21.5 V at 69.8 A IPPM, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the SMCG13CA-E3/9AT datasheet, SMCG13CA-E3/9AT pinout, SMCG13CA-E3/9AT application, or SMCG13CA-E3/9AT equivalent, this device is selected for high-energy surge suppression on signal lines, power rails, and sensor interfaces where fast response (<1 ns), low clamping ratio, and bidirectional symmetry are critical - especially in automotive ECUs, industrial I/O modules, and telecom interface protection.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with identical electrical characteristics in forward and reverse directions. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1 µA at VWM), while the DO-215AB package supports automated placement and meets MSL Level 1 (260 °C reflow peak).
The device delivers 1500 W peak pulse power under the standardized 10/1000 µs waveform, with thermal resistance RθJA = 75 °C/W and RθJL = 15 °C/W. It is rated for operation from –55 °C to +150 °C junction temperature and qualified per AEC-Q101 for automotive under-hood and chassis applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin for 12 V nominal systems. |
| VBR (min/max) | 14.4 V / 15.9 V at 1 mA - Confirmed breakdown range ensures predictable turn-on during transients without premature conduction. |
| VC @ IPPM | 21.5 V at 69.8 A - Clamping voltage limits downstream IC stress during 10/1000 µs surges; clamping ratio = VC/VWM ≈ 1.65. |
| PPPM | 1500 W - Peak surge energy handling capacity under standard waveform; enables protection against IEC 61000-4-5 Level 4 surges. |
| ID @ VWM | <1 µA - Ultra-low reverse leakage preserves signal integrity and minimizes standby power loss in high-impedance circuits. |
| TJ max. | +150 °C - Extended junction temperature rating supports under-hood automotive use and high-power-density PCB layouts. |
| AEC-Q101 | Qualified - Validated for automotive reliability including HTOL, TC, UHAST, and ESD testing; suitable for ASIL-B system components. |
Pinout & Package
SMCG13CA-E3/9AT uses the SMCG (DO-215AB) surface-mount package: a dual-leaded, gull-wing, symmetrical outline with no polarity marking for bidirectional operation. The package measures 7.87 mm × 5.59 mm × 2.41 mm (L × W × H), features matte tin-plated leads compliant with J-STD-002, and meets UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional current path | No polarity marking required; terminals are functionally identical - current flows equally in either direction during clamping. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive environments including temperature cycling, humidity bias, and surge endurance - enables drop-in use in ECU, ADAS, and body control modules. |
| 1500 W peak pulse power | Withstands IEC 61000-4-5 10/1000 µs surges up to 4 kV (open-circuit) or 2 kV (line-to-ground) without degradation. |
| Glass-passivated junction | Ensures stable VBR over lifetime and temperature, low parameter drift, and immunity to moisture-induced parametric shift. |
| MSL Level 1 rating | Supports standard SMT reflow profiles up to 260 °C peak without preconditioning - eliminates baking requirements and streamlines manufacturing. |
| Low clamping ratio (VC/VWM ≈ 1.65) | Minimizes voltage overshoot during clamping, protecting 13.3 V-rated logic inputs and 16 V max-rated analog front-ends. |
Applications
| Automotive Sensor Interface Protection | Industrial CAN Bus Transceiver Protection |
|---|---|
Use Scenario: Protecting LIN/CAN signal lines in engine control units against load dump and inductive switching transients. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector entry point to shunt surge energy before reaching transceiver IC. Use Value: Maintains signal integrity during 100 V/50 ms load dump events while limiting line voltage to ≤21.5 V - preventing transceiver latch-up or damage. |
Use Scenario: Safeguarding isolated CAN FD transceivers in factory automation gateways exposed to motor drive noise and ground bounce. IC Role / Device Role / Timing Role: Primary surge suppression stage on differential CAN_H/CAN_L lines, upstream of common-mode chokes and ESD diodes. Use Value: Absorbs >1000 W of coupled surge energy within nanoseconds, preserving bit timing accuracy and preventing bus lockup during EMC testing. |
| Telecom Ethernet PHY Port Protection | Consumer Appliance Motor Drive Control |
Use Scenario: Shielding 10/100BASE-TX PHY interfaces in VoIP gateways and small-cell base stations from lightning-induced surges on PoE lines. IC Role / Device Role / Timing Role: Secondary-level TVS deployed after gas discharge tube (GDT) primary protection, providing fast-response clamping. Use Value: Clamps induced transients to <22 V within <1 ns, ensuring PHY ICs (e.g., DP83848) remain within absolute maximum ratings during combined lightning + EFT events. |
Use Scenario: Protecting microcontroller GPIOs and hall-effect sensor inputs in smart washing machine motor control boards subjected to brush-commutator noise. IC Role / Device Role / Timing Role: Localized TVS on low-voltage sensor and feedback lines adjacent to triac/IGBT drivers. Use Value: Suppresses repetitive 500 V/10 µs spikes from commutation arcs without degrading signal fidelity - extends MCU lifetime and reduces firmware resets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ13CA | Same VWM (13 V) and PPPM (400 W), but lower power rating and SMA (DO-214AC) package - 40% smaller footprint, 60% lower surge capacity. | Best suited for space-constrained consumer electronics with lower surge threat levels (IEC 61000-4-2 only). | Select SMAJ13CA when board area is critical and peak surge energy remains below 400 W; not recommended for automotive or industrial 10/1000 µs compliance. |
| 1.5KE13CA | Higher PPPM (1500 W), axial-leaded DO-201AD package - lacks SMT compatibility and AEC-Q101 qualification. | Used in legacy through-hole designs or prototyping where reflow assembly is unavailable. | Choose 1.5KE13CA only for non-automated production or repair scenarios; requires manual soldering and fails automotive qualification requirements. |
Compared with SMAJ13CA and 1.5KE13CA, SMCG13CA-E3/9AT uniquely combines AEC-Q101 qualification, DO-215AB SMT compatibility, and full 1500 W 10/1000 µs capability - making it the only option qualified for volume automotive production requiring zero layout change from legacy SMCG footprints.
Availability
SMCG13CA-E3/9AT is available at Aetrix Electronics and suitable for automotive ECU design, industrial fieldbus protection, and telecom interface hardening requiring stable component supply, long-term lifecycle assurance, and traceable RoHS-compliant sourcing.
Supply support for SMCG13CA-E3/9AT 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, precision, and automotive-grade validation.
The SMCG series was developed specifically for high-reliability surface-mount transient suppression in automotive and industrial environments - prioritizing AEC-Q101 compliance, low clamping ratio, and robust surge handling in compact gull-wing packages.
FAQ
What is the clamping voltage of SMCG13CA-E3/9AT at its rated peak pulse current?
The SMCG13CA-E3/9AT has a maximum clamping voltage (VC) of 21.5 V when subjected to its peak pulse current (IPPM) of 69.8 A under the standard 10/1000 µs waveform. This value is measured per JEDEC test conditions and reflects the actual voltage seen by protected circuitry during worst-case surge events - a key parameter for verifying downstream IC safety margins in designs using SMCG13CA-E3/9AT.
Is SMCG13CA-E3/9AT suitable for automotive applications?
Yes, SMCG13CA-E3/9AT is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood and chassis-mounted systems. Its construction - glass-passivated junction, MSL Level 1 reflow compatibility, and –55 °C to +150 °C operating range - meets stringent automotive reliability requirements. The "HE3" and "HM3" variants in the same family add halogen-free and enhanced qualification, but SMCG13CA-E3/9AT itself carries full AEC-Q101 certification per Vishay documentation.
How does the bidirectional configuration of SMCG13CA-E3/9AT affect its circuit implementation?
Because SMCG13CA-E3/9AT is bidirectional, it has no cathode marking and functions identically in both polarities - simplifying layout and eliminating orientation errors during placement. In practice, this means it can protect AC-coupled lines (e.g., CAN, RS-485) or ungrounded DC rails without polarity concerns. Unlike unidirectional TVS diodes, SMCG13CA-E3/9AT provides symmetrical clamping above ±14.4 V, making it ideal for differential or floating signal paths where polarity reversal may occur.
What is the thermal resistance of SMCG13CA-E3/9AT, and how does it impact PCB layout?
SMCG13CA-E3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W and junction-to-lead (RθJL) of 15 °C/W when mounted on 8.0 mm × 8.0 mm copper pads per terminal. To maintain safe junction temperatures under sustained power dissipation, designers must provide adequate copper pour and avoid thermal isolation. The low RθJL confirms efficient heat transfer to the PCB leads - so optimizing pad size and via count beneath each terminal directly improves surge survivability and long-term reliability of SMCG13CA-E3/9AT.
Does SMCG13CA-E3/9AT meet industry surge immunity standards such as IEC 61000-4-5?
Yes, SMCG13CA-E3/9AT's 1500 W peak pulse power rating under the 10/1000 µs waveform aligns with IEC 61000-4-5 Level 4 (4 kV line-to-earth, 2 kV line-to-line) when implemented with appropriate PCB layout - including minimized trace inductance and proper grounding. Its fast response time (<1 ns), low clamping voltage, and bidirectional symmetry make it a core component in compliant surge protection networks for industrial and automotive equipment using SMCG13CA-E3/9AT.
SMCG13CA-E3/9AT 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):
- 13V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 21.5V
- Current - Peak Pulse (10/1000µs):
- 69.8A
- 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)
SMCG13CA-E3/9AT FAQ
1.How can I place an order for SMCG13CA-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG13CA-E3/9AT 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 SMCG13CA-E3/9AT reliable?
The price and inventory of SMCG13CA-E3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG13CA-E3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG13CA-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG13CA-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG13CA-E3/9AT?
SMCG13CA-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG13CA-E3/9AT 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 SMCG13CA-E3/9AT?
For technical support, including SMCG13CA-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG13CA-E3/9AT requirements.
6.How does Aetrix verify that SMCG13CA-E3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG13CA-E3/9AT 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 SMCG13CA-E3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG13CA-E3/9AT?
All SMCG13CA-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG13CA-E3/9AT, 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 SMCG13CA-E3/9AT part is unused and in its original packaging.
Return procedure for SMCG13CA-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG13CA-E3/9AT Tags
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