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Vishay General Semiconductor - Diodes Division SMCG14CA-E3/9AT
- Part No.:
- SMCG14CA-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG14CA-E3/9AT.pdf
- Description:
- TVS DIODE 14VWM 23.2VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,585
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Product details
Overview
SMCG14CA-E3/9AT 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 14 V stand-off voltage (VWM), 15.6–17.2 V breakdown voltage (VBR) at 1 mA, 1500 W peak pulse power (10/1000 µs), clamping voltage of 23.2 V at 64.7 A IPPM, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMCG14CA-E3/9AT datasheet, SMCG14CA-E3/9AT pinout, SMCG14CA-E3/9AT application, or SMCG14CA-E3/9AT equivalent, this device is selected for high-energy surge suppression in bidirectional signal lines, DC power rails, and automotive sensor interfaces where low clamping voltage, fast response (<1 ns), and MSL Level 1 reliability are critical.
Technical Context
The SMCG14CA-E3/9AT operates as a bidirectional avalanche diode, symmetrically clamping voltage transients in both polarities without polarity marking. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low incremental surge resistance, enabling consistent clamping performance under repetitive 10/1000 µs surges up to 1500 W.
Thermally, it exhibits RθJA = 75 °C/W and RθJL = 15 °C/W, supporting operation from –55 °C to +150 °C junction temperature. The DO-215AB package provides solderable matte tin leads compliant with J-STD-002 and JESD 22-B102, and meets UL 94 V-0 flammability rating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 14 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin for 12 V automotive systems. |
| VBR (min/max) | 15.6 V / 17.2 V at 1 mA - Confirmed breakdown range ensures predictable turn-on during transients; ±5% tolerance supports tight system-level margining. |
| VC @ IPPM | 23.2 V at 64.7 A - Clamping voltage under full 1500 W surge; limits protected circuit stress below IC absolute maximum ratings. |
| PPPM | 1500 W (10/1000 µs) - Peak surge energy handling capacity; sufficient for ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 4 compliance. |
| ID @ VWM | 1.0 µA - Ultra-low leakage at stand-off voltage; prevents battery drain in always-on automotive modules. |
| TJ max. | +150 °C - Enables deployment in under-hood ECUs and powertrain control units without thermal derating penalties. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per AEC standard. |
Pinout & Package
Package: SMCG (DO-215AB) - surface-mount, gull-wing leaded case with 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pad layout recommendation; RoHS-compliant matte tin plating; MSL Level 1 (260 °C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (bidirectional) | Either terminal accepts surge current; symmetrical structure eliminates polarity dependency in PCB layout. |
| Cathode | Transient current entry (bidirectional) | Functionally identical to Anode; no band marking required for bidirectional types per datasheet note. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines (e.g., CAN, LIN, sensor bridges) without external polarity management. |
| 1500 W peak pulse power | Withstands automotive load-dump and inductive switching events without degradation, verified per ISO 7637-2 test waveforms. |
| Low clamping ratio (VC/VBR ≈ 1.43) | Minimizes voltage overshoot during clamping-critical for protecting 16 V-tolerant microcontrollers and transceivers. |
| AEC-Q101 qualification | Validates long-term reliability in automotive environments including thermal shock, humidity, and mechanical vibration stress. |
| MSL Level 1 rating | Supports standard SMT reflow profiles up to 260 °C peak without moisture-induced popcorn failure. |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting analog output sensors (e.g., pressure, temperature) in engine control modules exposed to alternator load dump and relay coil flyback. IC Role / Device Role / Timing Role: Bidirectional TVS clamps ±100 V transients on 5 V ratiometric sensor outputs within <1 ns, preserving ADC accuracy. Use Value: Prevents latch-up or gate oxide damage in downstream op-amps and microcontroller input buffers during harsh automotive transients. | Use Scenario: Shielding CANH/CANL differential pair in vehicle body control units against ESD (±15 kV contact) and ISO 10605 pulses. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp maintains signal integrity up to 1 Mbps while diverting >30 A surge current. Use Value: Eliminates need for separate unidirectional devices per line, reducing BOM count and PCB area in space-constrained modules. |
| DC Power Rail Protection | Consumer USB Port Surge Suppression |
Use Scenario: Safeguarding 12 V supply inputs of ADAS cameras and infotainment head units against jump-start spikes and battery reversal. IC Role / Device Role / Timing Role: Clamps 100 V/100 ms transients to ≤25 V at the LDO input, preventing regulator shutdown or internal FET failure. Use Value: Extends system uptime by avoiding brownout resets during roadside battery recovery procedures. | Use Scenario: Hardening USB 2.0 VBUS and D+/D− lines in smart home hubs against lightning-induced surges and hot-plug ESD. IC Role / Device Role / Timing Role: Symmetric clamping protects both power and data paths with matched VC across all terminals. Use Value: Meets IEC 61000-4-2 Level 4 (±8 kV contact) without degrading 480 Mbps data eye diagram. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ14CA | Same VWM (14 V) and PPPM (400 W), but lower power rating and SMA (DO-214AC) package with higher RθJA (100 °C/W). | Limited to lower-energy transients (IEC 61000-4-5 Level 2); unsuitable for automotive load-dump duty cycles. | Select SMAJ14CA only for cost-sensitive consumer applications with <400 W surge requirements and no AEC-Q101 mandate. |
| 1.5KE14CA | Higher PPPM (1500 W) but axial-leaded DO-201AD package; larger footprint and manual assembly incompatible with automated SMT lines. | Not suitable for high-density automotive PCBs; lacks MSL Level 1 reflow compatibility and AEC-Q101 validation. | Choose 1.5KE14CA only for prototyping or legacy through-hole designs where board real estate and reflow profile are not constraints. |
Compared with SMAJ14CA and 1.5KE14CA, the SMCG14CA-E3/9AT delivers automotive-grade reliability in a compact, reflow-compatible surface-mount package with identical 14 V stand-off and full 1500 W surge capability-enabling drop-in replacement in next-gen automotive and industrial designs requiring AEC-Q101 compliance and automated manufacturing.
Availability
SMCG14CA-E3/9AT is available at Aetrix Electronics and suitable for automotive sensor protection, industrial CAN bus interface, and DC power rail protection requiring stable component supply, AEC-Q101 qualification, and 13" tape-and-reel delivery for high-volume SMT production.
Supply support for SMCG14CA-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 high-reliability, high-efficiency solutions.
The SMCG series is engineered specifically for automotive and industrial transient suppression, combining AEC-Q101 qualification, high-power DO-215AB packaging, and precise bidirectional clamping to meet stringent ISO 7637-2 and IEC 61000-4-5 requirements.
FAQ
What is the clamping voltage of the SMCG14CA-E3/9AT at its rated peak pulse current?
The SMCG14CA-E3/9AT has a maximum clamping voltage (VC) of 23.2 V when subjected to its peak pulse current (IPPM) of 64.7 A under the standard 10/1000 µs waveform. This value is measured per the conditions specified in the Vishay datasheet (Document Number: 88457, Rev. 09-Jan-2024) and reflects actual device behavior during surge events. The SMCG14CA-E3/9AT maintains this clamping performance across its full operating temperature range.
Is the SMCG14CA-E3/9AT suitable for automotive applications?
Yes, the SMCG14CA-E3/9AT is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments. Its –55 °C to +150 °C operating junction temperature range, MSL Level 1 reflow compatibility, and validation against automotive surge standards (e.g., ISO 7637-2) make it appropriate for ECUs, ADAS modules, and body electronics. The SMCG14CA-E3/9AT meets the reliability and thermal demands of modern automotive platforms.
Does the SMCG14CA-E3/9AT have polarity markings on the package?
No, the SMCG14CA-E3/9AT does not feature polarity markings such as a cathode band because it is a bidirectional TVS diode. As confirmed in the Vishay datasheet, bidirectional types-including SMCG14CA-E3/9AT-are unmarked, and either terminal functions identically for transient current conduction. This simplifies PCB layout and eliminates orientation errors during automated placement.
What is the maximum reverse leakage current for the SMCG14CA-E3/9AT at its stand-off voltage?
The SMCG14CA-E3/9AT exhibits a maximum reverse leakage current (ID) of 1.0 µA at its 14 V stand-off voltage (VWM), measured at TA = 25 °C. This ultra-low leakage ensures minimal power loss in always-on automotive circuits and prevents battery drain in parked-vehicle scenarios. The SMCG14CA-E3/9AT maintains this specification across its full temperature range per datasheet characterization.
What package type and lead finish does the SMCG14CA-E3/9AT use?
The SMCG14CA-E3/9AT uses the SMCG (DO-215AB) surface-mount package with gull-wing leads and matte tin plating, compliant with J-STD-002 and JESD 22-B102 solderability standards. The "E3" suffix denotes RoHS-compliant, industrial-grade construction. The SMCG14CA-E3/9AT is supplied in 13" diameter tape-and-reel (9AT) packaging with 3500 units per reel for high-volume SMT assembly.
SMCG14CA-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):
- 14V
- Voltage - Breakdown (Min):
- 15.6V
- Voltage - Clamping (Max) @ Ipp:
- 23.2V
- Current - Peak Pulse (10/1000µs):
- 64.7A
- 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)
SMCG14CA-E3/9AT FAQ
1.How can I place an order for SMCG14CA-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG14CA-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 SMCG14CA-E3/9AT reliable?
The price and inventory of SMCG14CA-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 SMCG14CA-E3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG14CA-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG14CA-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG14CA-E3/9AT?
SMCG14CA-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG14CA-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 SMCG14CA-E3/9AT?
For technical support, including SMCG14CA-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG14CA-E3/9AT requirements.
6.How does Aetrix verify that SMCG14CA-E3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG14CA-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 SMCG14CA-E3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG14CA-E3/9AT?
All SMCG14CA-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG14CA-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 SMCG14CA-E3/9AT part is unused and in its original packaging.
Return procedure for SMCG14CA-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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