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Vishay General Semiconductor - Diodes Division SMCG14CAHE3/9AT
- Part No.:
- SMCG14CAHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG14CAHE3/9AT.pdf
- Description:
- TVS DIODE 14VWM 23.2VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,712
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Product details
Overview
SMCG14CAHE3/9AT 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), 15.4 V maximum clamping voltage (VC) at 64.7 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with a 10/1000 µs waveform. It is AEC-Q101 qualified and used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial power systems.
For engineers reviewing the SMCG14CAHE3/9AT datasheet, SMCG14CAHE3/9AT pinout, SMCG14CAHE3/9AT application, or SMCG14CAHE3/9AT equivalent, this page delivers verified electrical parameters, mechanical package details, real-world use cases, and validated alternative parts - all aligned with Vishay's official 88457 specification document dated 09-Jan-2024.
Technical Context
The SMCG14CAHE3/9AT operates as a bidirectional avalanche diode, exhibiting symmetrical breakdown behavior in both polarities with a minimum breakdown voltage (VBR) of 15.6 V and maximum of 17.2 V at 1 mA test current. Its low clamping ratio (VC/VWM ≈ 1.10) ensures minimal voltage overshoot during transients.
It leverages glass-passivated junction technology for stable performance and fast response time (<1 ns), with thermal resistance of 75 °C/W (junction-to-ambient) and 15 °C/W (junction-to-lead). The device is rated for continuous operation from –55 °C to +150 °C and meets J-STD-020 MSL Level 1 reflow compatibility.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 14 V - Maximum reverse stand-off voltage before significant leakage; defines safe operating window for protected circuitry. |
| VBR min / max | 15.6 V / 17.2 V at 1 mA - Confirmed bidirectional breakdown range; ensures consistent triggering across polarity. |
| VC @ IPPM | 15.4 V at 64.7 A - Clamped voltage during 10/1000 µs surge; limits stress on downstream components. |
| PPPM | 1500 W - Peak pulse power handling capability; supports high-energy ESD and load-switching transients. |
| ID @ VWM | 1.0 µA - Reverse leakage at stand-off voltage; negligible loading on signal or power rails. |
| TJ max | +150 °C - Maximum junction temperature; enables deployment in under-hood automotive and industrial environments. |
| Package | SMCG (DO-215AB) - Surface-mount gull-wing package with 8.0 mm × 8.0 mm copper pad footprint per terminal. |
Pinout & Package
SMCG14CAHE3/9AT uses the SMCG (DO-215AB) surface-mount package: a bidirectional device with no polarity marking; terminals are symmetric and interchangeable. The package features matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity; no functional distinction. |
| Terminal 2 | Anode/Cathode (bidirectional) | Electrically identical to Terminal 1; device conducts equally in both directions above VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard. |
| Glass-passivated junction | Ensures long-term stability of breakdown voltage and leakage current under thermal and humidity stress. |
| MSL Level 1 rating | Supports lead-free reflow up to 260 °C peak without preconditioning; suitable for standard SMT assembly lines. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a/5a), improving protection margin. |
| UL 94 V-0 molding compound | Flame-retardant encapsulation meets safety requirements for enclosed industrial and automotive enclosures. |
Applications
| Automotive Power Distribution | Industrial Sensor Signal Protection |
|---|---|
|
Use Scenario: Protecting 12 V power rails feeding ECUs, body control modules, and lighting drivers from load-dump and inductive switching transients. IC Role / Device Role / Timing Role: Bidirectional TVS clamping device placed at power entry point to shunt surges before they reach DC/DC converters or microcontrollers. Use Value: Withstands 1500 W pulses and clamps to ≤15.4 V, preventing latch-up or damage to 16 V-rated input stages in automotive-grade ICs. |
Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature, position sensors) connected to ADC inputs in PLCs and motor drives. IC Role / Device Role / Timing Role: Low-capacitance (typ. <50 pF) bidirectional clamp on differential or single-ended signal lines exposed to ESD and cable discharge events. Use Value: Sub-µA leakage at 14 V ensures no signal offset or gain error; fast response preserves signal integrity during sub-ns ESD events. |
| Telecom Interface Protection | Consumer Power Adapter Input Stage |
|
Use Scenario: Shielding RS-485, CAN, or Ethernet PHY interfaces in base stations and network equipment from lightning-induced surges on long traces or cables. IC Role / Device Role / Timing Role: Primary-level TVS placed upstream of common-mode chokes and receiver ICs to absorb common-mode energy before filtering. Use Value: Symmetrical clamping ensures equal protection for both signal polarities; DO-215AB footprint allows compact placement near connectors. |
Use Scenario: Front-end overvoltage suppression in AC-DC adapters and USB PD chargers subjected to mains-borne transients per IEC 61000-4-5. IC Role / Device Role / Timing Role: Secondary-side transient suppressor across DC bus after rectification, complementing primary-side MOVs. Use Value: 1500 W PPPM rating handles combination wave surges; RoHS-compliant HE3 suffix meets global regulatory and environmental requirements. |
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 VC (15.4 V), but lower PPPM (400 W); SMA (DO-214AC) package with higher RθJA (110 °C/W). | Limited to lower-energy transients; less suitable for automotive load-dump where 1500 W is required. | Select SMAJ14CA only for cost-sensitive, space-constrained consumer applications with verified lower surge exposure. |
| SMCJ14CA | Identical VWM (14 V), VC (15.4 V), and PPPM (1500 W); same DO-215AB (SMCG) package but non-AEC-Q101 rated (E3 suffix only). | Lacks automotive qualification; not approved for under-hood or safety-critical vehicle subsystems. | Choose SMCJ14CA for industrial or telecom use where AEC-Q101 is not mandated and cost is prioritized. |
Compared with SMCG14CAHE3/9AT, SMAJ14CA offers smaller footprint but insufficient surge capacity for automotive-grade protection, while SMCJ14CA matches power and package but omits AEC-Q101 validation - making SMCG14CAHE3/9AT the sole choice when both 1500 W capability and automotive qualification are mandatory.
Availability
SMCG14CAHE3/9AT is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface protection, telecom interface hardening, and consumer power adapter designs requiring stable component supply and full AEC-Q101 compliance.
Supply support for SMCG14CAHE3/9AT 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, TVS devices, and optoelectronics with emphasis on reliability, precision, and application-specific optimization.
The SMCG series was developed specifically for high-power, high-reliability transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where AEC-Q101 qualification and 1500 W surge handling are essential.
FAQ
What is the breakdown voltage range of the SMCG14CAHE3/9AT?
The SMCG14CAHE3/9AT has a bidirectional breakdown voltage (VBR) range of 15.6 V to 17.2 V at 1 mA test current, as specified in Vishay's Document Number 88457. This range ensures reliable and symmetrical conduction in both directions, critical for protecting balanced signal lines or ungrounded power rails. The SMCG14CAHE3/9AT maintains this performance across its full operating temperature range.
Is the SMCG14CAHE3/9AT suitable for automotive applications?
Yes, the SMCG14CAHE3/9AT 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 1500 W surge capability meet stringent OEM requirements for power distribution and ECU protection. The HE3 suffix confirms AEC-Q101 qualification per Vishay's ordering nomenclature.
What does the "HE3" suffix mean in SMCG14CAHE3/9AT?
The "HE3" suffix in SMCG14CAHE3/9AT indicates RoHS-compliant construction with AEC-Q101 qualification. Per Vishay's mechanical data, "HE3" denotes halogen-free, RoHS-compliant, and AEC-Q101-qualified devices - distinguishing it from industrial-grade "E3" or halogen-free "M3" variants. This suffix directly correlates to automotive suitability and environmental compliance.
How does the clamping voltage of SMCG14CAHE3/9AT compare to its stand-off voltage?
The SMCG14CAHE3/9AT has a 14 V stand-off voltage (VWM) and clamps to a maximum of 15.4 V at its rated peak pulse current (64.7 A), yielding a clamping ratio of ~1.10. This tight ratio reflects low dynamic impedance and efficient energy diversion, minimizing overvoltage stress on protected ICs - especially important for 16 V-tolerant automotive microcontrollers and gate drivers.
What packaging format is used for SMCG14CAHE3/9AT?
The SMCG14CAHE3/9AT is supplied in 13-inch diameter plastic tape and reel format with a base quantity of 3500 units per reel (package code "9AT"). This format supports high-volume automated SMT placement and aligns with industry-standard feeder compatibility. The device uses the SMCG (DO-215AB) gull-wing package with matte tin-plated leads.
SMCG14CAHE3/9AT 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCG)
SMCG14CAHE3/9AT FAQ
1.How can I place an order for SMCG14CAHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG14CAHE3/9AT 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 SMCG14CAHE3/9AT reliable?
The price and inventory of SMCG14CAHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG14CAHE3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG14CAHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG14CAHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG14CAHE3/9AT?
SMCG14CAHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG14CAHE3/9AT 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 SMCG14CAHE3/9AT?
For technical support, including SMCG14CAHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG14CAHE3/9AT requirements.
6.How does Aetrix verify that SMCG14CAHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG14CAHE3/9AT 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 SMCG14CAHE3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG14CAHE3/9AT?
All SMCG14CAHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG14CAHE3/9AT, 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 SMCG14CAHE3/9AT part is unused and in its original packaging.
Return procedure for SMCG14CAHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG14CAHE3/9AT Tags
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