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Vishay General Semiconductor - Diodes Division SMCG150A-E3/9AT
- Part No.:
- SMCG150A-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG150A-E3/9AT.pdf
- Description:
- TVS DIODE 150VWM 243VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,586
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Product details
Overview
SMCG150A-E3/9AT from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) package, designed for high-energy surge protection with a 150 V standoff voltage (VWM), 167–185 V breakdown voltage (VBR), and 1500 W peak pulse power (PPPM) at 10/1000 µs. It delivers clamping voltage of 243 V at 6.2 A IPPM and operates across –55 °C to +150 °C, targeting automotive power line and industrial sensor interface protection.
For engineers reviewing the SMCG150A-E3/9AT datasheet, SMCG150A-E3/9AT pinout, SMCG150A-E3/9AT application, or SMCG150A-E3/9AT equivalent, this page provides verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 75 °C/W), DO-215AB mechanical outline, and direct alternatives for overvoltage protection in 12 V/24 V systems.
Technical Context
This TVS diode uses a glass-passivated silicon junction optimized for fast response (<1 ns) to ESD and lightning-induced transients. Its unidirectional polarity features a cathode band marking and supports surge currents up to 200 A (IFSM, 8.3 ms half-sine) while maintaining low incremental surge resistance.
The device meets J-STD-020 MSL Level 1 (260 °C peak reflow), UL 497B recognition (QVGQ2), and AEC-Q101 qualification - confirming suitability for automotive under-hood and industrial control applications where reliability under thermal cycling and repetitive surges is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 150 V - Maximum continuous reverse operating voltage before clamping begins; defines system working voltage margin. |
| VBR min/max | 167 V / 185 V at 1 mA - Confirmed breakdown threshold range ensuring predictable turn-on during overvoltage events. |
| VC @ IPPM | 243 V at 6.2 A - Clamping voltage under 10/1000 µs surge; determines maximum stress on downstream ICs. |
| PPPM | 1500 W - Peak pulse power handling capability; enables robust protection against IEC 61000-4-5 Level 4 surges. |
| TJ max | +150 °C - Maximum junction temperature; supports operation in engine bay or industrial enclosures without derating. |
| RθJA | 75 °C/W - Thermal resistance junction-to-ambient on 8 mm × 8 mm copper pads; informs heatsinking requirements. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance. |
Pinout & Package
Package: SMCG (DO-215AB) - surface-mount, low-profile gull-wing leaded case with matte tin-plated terminals, UL 94 V-0 molding compound, and 0.31" × 0.31" (8.0 mm × 8.0 mm) recommended pad layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry (unidirectional) | Connected to protected line side; must be tied to lower-potential node relative to cathode. |
| Cathode | Reverse-biased terminal (marked with band) | Connected to ground or reference rail; defines clamping path during positive transients. |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile DO-215AB package | Enables automated SMT placement and fits space-constrained PCB layouts near connectors or power inputs. |
| Glass-passivated chip junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift in harsh environments. |
| 1500 W peak pulse power | Withstands repeated 10/1000 µs surges per IEC 61000-4-5 without degradation, supporting long-term field reliability. |
| AEC-Q101 qualification | Validates performance across automotive temperature, vibration, and surge stress profiles - no additional qualification needed. |
| MSL Level 1 rating | Allows single-reflow assembly without moisture sensitivity concerns, eliminating bake-out steps in production. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface |
|---|---|
Use Scenario: Protecting 12 V/24 V supply rails in engine control units (ECUs) and body control modules (BCMs) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and DC-DC input to clamp transients before they reach regulator ICs. Use Value: Limits clamped voltage to 243 V, preventing damage to 36 V-rated input stages and meeting OEM surge immunity requirements. |
Use Scenario: Shielding analog and digital signal lines (e.g., CAN, LIN, or 4–20 mA loops) in factory automation sensors exposed to motor switching noise. IC Role / Device Role / Timing Role: Discrete TVS mounted at connector entry point to shunt fast-rising EFT bursts (IEC 61000-4-4) away from ADCs or transceivers. Use Value: Sub-1 ns response time ensures clamping occurs before sensitive front-end circuitry experiences overstress. |
| Telecom Power Input Stage | Consumer Appliance Motor Drive |
Use Scenario: Safeguarding AC/DC adapter outputs and PoE-powered equipment inputs against lightning-induced surges on telecom infrastructure links. IC Role / Device Role / Timing Role: Primary-level TVS on secondary-side DC bus, coordinated with upstream MOVs to distribute energy absorption. Use Value: 1500 W PPPM rating allows it to absorb >90% of 10/1000 µs surge energy without failure, reducing need for redundant protection. |
Use Scenario: Protecting microcontroller GPIOs and gate drivers in washing machine or HVAC blower modules from inductive kickback during relay or TRIAC switching. IC Role / Device Role / Timing Role: Localized TVS placed directly at motor driver IC supply pins to suppress sub-microsecond turn-off spikes. Use Value: Low clamping voltage (243 V) prevents latch-up in 5 V logic interfaces while surviving 200 A IFSM surge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ150A-E3/57T | Same VWM (150 V), lower PPPM (400 W), SMA (DO-214AC) package, RθJA = 95 °C/W | Limited to lower-energy surges; unsuitable for IEC 61000-4-5 Level 4 or automotive load dump | Select only when board space is constrained and surge threat level is ≤200 W. |
| SMCJ150A-E3/9AT | Same VWM (150 V), higher PPPM (1500 W), SMC (DO-214AB) package, RθJA = 19 °C/W (on large copper) | Better thermal performance but larger footprint; requires ≥100 mm² copper pour for full rating | Choose when thermal management is prioritized over board area and AEC-Q101 is not required. |
Compared with SMAJ150A-E3/57T and SMCJ150A-E3/9AT, the SMCG150A-E3/9AT uniquely balances 1500 W surge capability, AEC-Q101 qualification, and compact DO-215AB packaging - making it optimal for automotive and space-limited industrial designs where both reliability and size matter.
Availability
SMCG150A-E3/9AT is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom power supplies, and consumer appliance motor controls requiring stable component supply and long-term lifecycle support.
Supply support for SMCG150A-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, efficiency, and application-specific validation.
The SMCG series was engineered for high-power transient suppression in automotive and industrial environments, combining AEC-Q101 compliance, robust surge handling, and surface-mount manufacturability in a low-profile package.
FAQ
What is the clamping voltage of the SMCG150A-E3/9AT under standard surge conditions?
The SMCG150A-E3/9AT has a maximum clamping voltage (VC) of 243 V at 6.2 A peak pulse current (IPPM) using the 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during a standardized surge event. The SMCG150A-E3/9AT maintains this clamping performance across its full operating temperature range.
Is the SMCG150A-E3/9AT qualified for automotive applications?
Yes, the SMCG150A-E3/9AT is AEC-Q101 qualified, having passed stress tests including high-temperature reverse bias (HTRB), temperature cycling, and surge endurance specific to automotive under-hood environments. Its qualification applies to the full SMCG family with HE3/HM3 suffixes, and the E3/9AT variant inherits this qualification per Vishay's documentation (Doc. #88457, Rev. 09-Jan-2024).
What does the "E3/9AT" suffix indicate for the SMCG150A-E3/9AT?
The "E3" denotes RoHS-compliant, industrial-grade construction with matte tin-plated leads; "9AT" specifies packaging in a 13-inch diameter plastic tape-and-reel format containing 3500 units. This differs from "57T" (7-inch reel, 850 units) and confirms compatibility with high-volume SMT pick-and-place equipment using standard 13″ reel feeders.
How does the SMCG150A-E3/9AT compare to bidirectional variants like SMCG150CA?
The SMCG150A-E3/9AT is unidirectional and features a cathode band for polarity identification, whereas SMCG150CA is bidirectional with no marking and symmetric clamping in both directions. The SMCG150A-E3/9AT supports forward conduction and handles 200 A IFSM surges, while SMCG150CA does not specify IFSM and is intended for AC-coupled or floating signal lines where polarity is undefined.
What is the thermal resistance of the SMCG150A-E3/9AT, and how does it affect layout?
The SMCG150A-E3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal. This value assumes minimum recommended pad layout - reducing copper area increases thermal impedance and may require derating of PPPM. Layout must follow Vishay's DO-215AB mounting guidelines to maintain rated surge performance.
SMCG150A-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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 150V
- Voltage - Breakdown (Min):
- 167V
- Voltage - Clamping (Max) @ Ipp:
- 243V
- Current - Peak Pulse (10/1000µs):
- 6.2A
- 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)
SMCG150A-E3/9AT FAQ
1.How can I place an order for SMCG150A-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG150A-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 SMCG150A-E3/9AT reliable?
The price and inventory of SMCG150A-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 SMCG150A-E3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG150A-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG150A-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG150A-E3/9AT?
SMCG150A-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG150A-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 SMCG150A-E3/9AT?
For technical support, including SMCG150A-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG150A-E3/9AT requirements.
6.How does Aetrix verify that SMCG150A-E3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG150A-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 SMCG150A-E3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG150A-E3/9AT?
All SMCG150A-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG150A-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 SMCG150A-E3/9AT part is unused and in its original packaging.
Return procedure for SMCG150A-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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