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Vishay General Semiconductor - Diodes Division SMCG9.0-E3/9AT
- Part No.:
- SMCG9.0-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG9.0-E3/9AT.pdf
- Description:
- TVS DIODE 9VWM 16.9VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,820
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Product details
Overview
SMCG9.0-E3/9AT from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) in DO-215AB (SMCG) package, designed for clamping voltage transients on signal and power lines. It features a 9.0 V stand-off voltage (VWM), 15.4 V maximum clamping voltage (VC) at 97.4 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMCG9.0-E3/9AT datasheet, SMCG9.0-E3/9AT pinout, SMCG9.0-E3/9AT application, or SMCG9.0-E3/9AT equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, DO-215AB mechanical dimensions, clamping performance under surge conditions, and direct alternatives for ESD/lightning transient protection in 12 V automotive and 24 V industrial control systems.
Technical Context
The SMCG9.0-E3/9AT is a bi-directional silicon avalanche diode optimized for fast-response transient suppression. Its breakdown voltage (VBR) is specified at 10.0–11.1 V (min/max) with 1.0 mA test current, and it exhibits low incremental surge resistance to maintain stable clamping during high-current transients.
It operates across -55 °C to +150 °C junction temperature range, meets MSL Level 1 per J-STD-020 (peak reflow 260 °C), and is RoHS-compliant with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102 - confirming suitability for automated SMT assembly in high-reliability automotive modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 9.0 V - Maximum continuous reverse working voltage before conduction begins; sets operating margin below clamping threshold in 12 V nominal systems. |
| VBR (Breakdown Voltage) | 10.0–11.1 V at 1.0 mA - Confirmed avalanche initiation range; ensures predictable turn-on during overvoltage events without premature leakage. |
| VC (Clamping Voltage) | 15.4 V at IPPM = 97.4 A - Peak voltage seen by protected circuit during 10/1000 µs surge; stays well below 20 V IC damage thresholds. |
| PPPM (Peak Pulse Power) | 1500 W - Sustains high-energy transients (e.g., ISO 7637-2 Pulse 1/2a/5a) without failure when mounted on 8 mm × 8 mm copper pads. |
| ID (Reverse Leakage) | 10 µA max at VWM - Negligible standby current; avoids loading of high-impedance sensor or communication lines. |
| TJ max. | 150 °C - Enables operation in under-hood automotive environments and enclosed industrial enclosures without derating. |
| RθJA | 75 °C/W - Thermal resistance confirms need for adequate PCB copper area; 8 mm × 8 mm pad layout required to achieve rated PPPM. |
Pinout & Package
DO-215AB (SMCG) surface-mount package: gull-wing lead form, 0.220–0.245 inch (5.59–6.22 mm) body length, 0.115–0.125 inch (2.92–3.17 mm) body width, 0.024–0.040 inch (0.61–1.02 mm) lead thickness. Bi-directional construction - no polarity marking on device body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional avalanche junction terminals | Either terminal serves as anode or cathode depending on transient polarity; enables single-device protection of AC-coupled or floating lines. |
| Lead 1 / Lead 2 | Mounting interface to PCB | Gull-wing leads provide mechanical stability and thermal path to copper pads; requires 0.31" × 0.31" (8.0 mm × 8.0 mm) pad per terminal for full 1500 W rating. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance - required for engine control, ADAS, and body electronics. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns - eliminates bake requirements pre-assembly. |
| Glass passivated chip junction | Enhances long-term stability and humidity resistance versus epoxy-passivated alternatives - critical for under-hood and outdoor industrial use. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., EFT bursts), improving protection margin for sensitive analog front-ends. |
| UL 94 V-0 molding compound | Self-extinguishing encapsulation meets fire-safety requirements for industrial control panels and transportation equipment. |
Applications
| Automotive Sensor Interface | Industrial Digital I/O Protection |
|---|---|
Use Scenario: Protecting LIN bus or analog sensor outputs (e.g., pressure, temperature) from load dump and inductive switching spikes in vehicle ECUs. IC Role / Device Role / Timing Role: Bi-directional TVS placed between signal line and ground, clamping both positive and negative transients without DC bias dependency. Use Value: Maintains signal integrity below 15.4 V clamping level while surviving repeated 1500 W surges - extends sensor lifetime and reduces field failures. |
Use Scenario: Safeguarding PLC digital input channels against 24 V supply transients and relay contact bounce in factory automation. IC Role / Device Role / Timing Role: Standoff-rated transient suppressor across input terminal and common rail, absorbing energy before it reaches optocoupler or MCU GPIO. Use Value: 9.0 V VWM aligns with 24 V system logic thresholds; 10 µA leakage avoids false triggering in high-impedance sensing circuits. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Shielding RS-485 transceivers in base station backhaul links from lightning-induced surges on twisted-pair cabling. IC Role / Device Role / Timing Role: Primary-level surge clamp on differential pair, paired with secondary GDT or polymer PTC for staged protection. Use Value: 15.4 V VC ensures transceiver remains within absolute maximum ratings during 10/1000 µs threats up to 97.4 A. |
Use Scenario: Suppressing commutation spikes from brushed DC motors in smart home appliances (e.g., vacuum cleaners, washing machines). IC Role / Device Role / Timing Role: Across motor terminals or H-bridge supply rails to limit voltage reversal and inductive kickback. Use Value: 1500 W PPPM handles repetitive motor-switching energy; AEC-Q101 qualification ensures robustness in high-vibration environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ9.0A-E3/57T | Uni-directional; 9.0 V VWM, 14.4 V VC @ 77.5 A; SMA package (smaller thermal mass, lower PPPM = 400 W). | Requires external polarity management; unsuitable for AC or floating lines without series diode. | Select only if circuit has defined DC bias and space constraints prohibit DO-215AB footprint. |
| SMCJ9.0A-E3/9AT | Uni-directional; same VWM/VC specs but higher PPPM (1500 W) in larger DO-214AB (SMC) package; not AEC-Q101 qualified. | Lacks automotive qualification; higher thermal inertia delays response slightly vs. SMCG's optimized junction design. | Prefer for cost-sensitive industrial power supplies where AEC-Q101 is not mandated and board space allows SMC outline. |
Compared with SMAJ9.0A-E3/57T and SMCJ9.0A-E3/9AT, the SMCG9.0-E3/9AT uniquely combines bi-directionality, AEC-Q101 qualification, and DO-215AB compactness - making it the only choice for space-constrained, automotive-grade, polarity-agnostic transient protection.
Availability
SMCG9.0-E3/9AT is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer appliance motor drives requiring stable component supply and full traceability.
Supply support for SMCG9.0-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 engineered specifically for high-energy, bi-directional transient suppression in space-limited automotive and industrial applications - prioritizing low clamping voltage, fast response, and AEC-Q101 compliance over generic surge handling.
FAQ
What is the clamping voltage of SMCG9.0-E3/9AT at its rated peak pulse current?
The SMCG9.0-E3/9AT has a maximum clamping voltage (VC) of 15.4 V when subjected to its rated peak pulse current (IPPM) of 97.4 A using a 10/1000 µs waveform. This value is measured under standardized test conditions with 0.31" × 0.31" copper pads per terminal, and it defines the upper voltage limit imposed on protected circuitry during surge events. The SMCG9.0-E3/9AT maintains this clamping performance consistently across its operational temperature range.
Is SMCG9.0-E3/9AT suitable for automotive applications?
Yes, SMCG9.0-E3/9AT is AEC-Q101 qualified and explicitly rated for automotive use, including engine control units, body electronics, and ADAS sensor interfaces. Its construction includes glass-passivated junctions, MSL Level 1 reflow compatibility, and guaranteed operation from -55 °C to +150 °C - all validated per AEC stress test protocols. The SMCG9.0-E3/9AT meets the reliability and environmental demands of under-hood and cabin-mounted automotive systems.
Does SMCG9.0-E3/9AT have polarity markings?
No, SMCG9.0-E3/9AT is a bi-directional TVS diode and carries no polarity marking on its DO-215AB package. Unlike uni-directional variants (e.g., SMCG9.0A), it functions identically regardless of voltage polarity across its terminals - making it ideal for protecting AC-coupled signals, differential buses, or floating grounds. The absence of a cathode band reflects its symmetrical internal structure.
What is the thermal resistance of SMCG9.0-E3/9AT, and how does it affect layout?
The SMCG9.0-E3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W, which assumes mounting on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal. To achieve its full 1500 W peak pulse power rating, PCB layout must replicate this pad area; reducing pad size increases junction temperature and de-rates surge capability. The SMCG9.0-E3/9AT's RθJL of 15 °C/W further emphasizes the need for robust thermal conduction through leads to inner-layer copper planes.
How does SMCG9.0-E3/9AT differ from SMCG9.0A?
SMCG9.0-E3/9AT is the bi-directional version (suffix "CA" implied in family designation), whereas SMCG9.0A is uni-directional. The SMCG9.0-E3/9AT has symmetric breakdown behavior in both directions, no cathode band, and identical VBR min/max (10.0–11.1 V) and VC (15.4 V) specs - but cannot be substituted for SMCG9.0A without verifying circuit polarity tolerance. Both share DO-215AB packaging, AEC-Q101 qualification, and RoHS compliance, but only SMCG9.0-E3/9AT supports floating or AC signal protection.
SMCG9.0-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 9V
- Voltage - Breakdown (Min):
- 10V
- Voltage - Clamping (Max) @ Ipp:
- 16.9V
- Current - Peak Pulse (10/1000µs):
- 88.8A
- 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)
SMCG9.0-E3/9AT FAQ
1.How can I place an order for SMCG9.0-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG9.0-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 SMCG9.0-E3/9AT reliable?
The price and inventory of SMCG9.0-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 SMCG9.0-E3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG9.0-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG9.0-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG9.0-E3/9AT?
SMCG9.0-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG9.0-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 SMCG9.0-E3/9AT?
For technical support, including SMCG9.0-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG9.0-E3/9AT requirements.
6.How does Aetrix verify that SMCG9.0-E3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG9.0-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 SMCG9.0-E3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG9.0-E3/9AT?
All SMCG9.0-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG9.0-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 SMCG9.0-E3/9AT part is unused and in its original packaging.
Return procedure for SMCG9.0-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG9.0-E3/9AT Tags
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