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Vishay General Semiconductor - Diodes Division SMCG6.5A-M3/9AT
- Part No.:
- SMCG6.5A-M3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG6.5A-M3/9AT.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,844
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Product details
Overview
SMCG6.5A-M3/9AT from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) package, featuring a breakdown voltage of 7.22–7.98 V at 10 mA, stand-off voltage of 6.5 V, peak pulse power dissipation of 1500 W (10/1000 µs), clamping voltage of 11.2 V at 133.9 A, and AEC-Q101 qualification for automotive-grade reliability. It protects MOSFETs and ICs against inductive switching transients in engine control units.
For engineers reviewing the SMCG6.5A-M3/9AT datasheet, SMCG6.5A-M3/9AT pinout, SMCG6.5A-M3/9AT application, or SMCG6.5A-M3/9AT equivalent, this page delivers verified electrical parameters, package geometry, clamping behavior under surge, thermal resistance (RθJA = 75 °C/W), and AEC-Q101 compliance status - all critical for automotive ESD/surge protection design-in.
Technical Context
This TVS operates as a unidirectional avalanche clamp with glass-passivated junction, optimized for fast response (<1 ns) to transient overvoltages. Its low incremental surge resistance and 11.2 V clamping voltage at 133.9 A ensure robust protection of downstream 5–6.5 V logic interfaces without overstressing gate oxides.
The device uses the SMCG (DO-215AB) surface-mount gull-wing package with matte tin-plated leads, rated MSL Level 1 (260 °C reflow peak), and meets UL 94 V-0 flammability. Polarity is marked by a cathode band; no marking on bidirectional variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.22 V / 7.98 V at 10 mA - defines minimum voltage at which avalanche conduction begins; ensures reliable turn-on before system damage threshold |
| VWM | 6.5 V - maximum continuous reverse operating voltage; must exceed normal signal/rail voltage to prevent leakage during operation |
| VC @ IPPM | 11.2 V at 133.9 A - clamped voltage during 10/1000 µs surge; determines maximum stress imposed on protected circuit |
| PPPM | 1500 W - peak pulse power handling capability; enables survival of high-energy transients like ISO 7637-2 Pulse 5a |
| RθJA | 75 °C/W - junction-to-ambient thermal resistance on 8 mm × 8 mm copper pads; informs derating above 25 °C ambient |
| TJ max | +150 °C - maximum junction temperature; supports operation in under-hood automotive environments |
| AEC-Q101 | Qualified - validated for automotive use including temperature cycling, HTRB, and ESD per AEC standard |
Pinout & Package
Package: SMCG (DO-215AB), surface-mount gull-wing, 2-terminal configuration. Cathode identified by molded band on body. Dimensions: 7.87 mm × 3.17 mm × 2.41 mm (L × W × H); lead pitch: 2.54 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to protected line's ground reference | Provides low-impedance path to ground during transient; must be routed with minimal inductance to avoid voltage overshoot |
| Cathode | Current exit point in forward bias; connected to protected signal/rail | Marked by band; connects to vulnerable node (e.g., MCU I/O, sensor supply); defines polarity-sensitive placement |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable, repeatable avalanche characteristics over lifetime and temperature; eliminates moisture-induced parameter drift |
| Low incremental surge resistance | Minimizes VC rise under high IPPM; critical for protecting 3.3 V/5 V logic rails where <12 V clamping is mandatory |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets automotive environmental requirements (e.g., ELV Directive); compatible with lead-free reflow profiles up to 260 °C |
| MSL Level 1 rating | Allows unlimited floor life and single-reflow processing without baking; reduces manufacturing overhead in high-volume SMT lines |
| 1500 W peak pulse power | Withstands ISO 16750-2 Load Dump (up to 120 V, 400 ms) and ISO 7637-2 Pulse 5a (10/1000 µs) without degradation |
Applications
| Automotive Engine Control Unit (ECU) | Industrial Motor Drive Interface |
|---|---|
Use Scenario: Protecting microcontroller I/O pins and CAN transceiver power rails from load dump and inductive kickback in 12 V vehicle systems. IC Role / Device Role / Timing Role: Unidirectional TVS clamping transient energy before it reaches sensitive silicon; acts within <1 ns of overvoltage onset. Use Value: Maintains VC ≤ 11.2 V during 133.9 A surges, preventing latch-up or gate oxide rupture in 5 V logic interfaces per ISO 16750-2. | Use Scenario: Safeguarding PLC analog input channels and digital isolator supplies against relay coil flyback and contact arcing in factory automation. IC Role / Device Role / Timing Role: Standoff-rated TVS placed at signal entry point; conducts only during >6.5 V excursions while remaining high-impedance otherwise. Use Value: Enables reliable operation with <1000 µA leakage at 6.5 V, preserving measurement accuracy in 16-bit ADC front-ends. |
| Automotive Body Control Module (BCM) | Telecom Power Supply Input |
Use Scenario: Shielding LIN bus transceivers and LED driver ICs from battery reverse connection and jump-start transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 12 V supply rail; coordinated with upstream fuse to clear faults without damaging downstream regulators. Use Value: AEC-Q101 qualification ensures zero infant mortality in 15-year automotive service life; RθJA = 75 °C/W supports operation at +105 °C ambient. | Use Scenario: Front-end protection for AC/DC adapter inputs exposed to lightning-induced surges on telecom central office power feeds. IC Role / Device Role / Timing Role: First-stage surge suppression before MOV-based secondary protection; handles repetitive 1500 W pulses without parametric shift. Use Value: 1500 W PPPM rating allows absorption of multiple 10/1000 µs surges per IEC 61000-4-5 Level 4, extending system MTBF. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.5A-M3/57T | Same VWM (6.5 V) and VC (11.2 V), but lower PPPM = 400 W; SMA (DO-214AC) package, smaller footprint (4.5 mm × 2.7 mm) | Not AEC-Q101 qualified; suitable for industrial/commercial, not automotive | Select when space-constrained and automotive qualification is unnecessary |
| SMCJ6.5A-M3/9AT | Same VWM (6.5 V), higher PPPM = 1500 W, identical SMCG package; VBR range 7.22–7.98 V matches exactly | Functionally identical but lacks explicit AEC-Q101 listing in current datasheet revision | Use when AEC-Q101 documentation is not contractually required but same surge performance is needed |
Compared with SMAJ6.5A-M3/57T and SMCJ6.5A-M3/9AT, SMCG6.5A-M3/9AT uniquely combines 1500 W surge capability, AEC-Q101 qualification, and DO-215AB mechanical robustness - making it the only choice for production automotive ECUs requiring both high-energy clamping and certified reliability.
Availability
SMCG6.5A-M3/9AT is available at Aetrix Electronics and suitable for automotive engine control units, industrial motor drives, body control modules, and telecom power supply inputs requiring stable component supply across multi-year production cycles.
Supply support for SMCG6.5A-M3/9AT 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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices, with emphasis on high-reliability, automotive-qualified components.
The SMCG series targets automotive and industrial transient protection, engineered specifically for AEC-Q101 compliance, high-surge survivability, and compatibility with automated SMT assembly processes.
FAQ
What is the clamping voltage of SMCG6.5A-M3/9AT at its rated peak pulse current?
The SMCG6.5A-M3/9AT has a maximum clamping voltage (VC) of 11.2 V at its peak pulse current (IPPM) of 133.9 A under a 10/1000 µs waveform. This value is measured per JEDEC standards and ensures protected circuits remain below critical voltage thresholds during surge events. The SMCG6.5A-M3/9AT maintains this clamping performance across its full operating temperature range.
Is SMCG6.5A-M3/9AT qualified for automotive applications?
Yes, SMCG6.5A-M3/9AT is explicitly AEC-Q101 qualified, as confirmed in the Vishay document 88457 (Revision: 09-Jan-2024). This qualification covers stress tests including temperature cycling, high-temperature reverse bias, and ESD, validating its suitability for under-hood and chassis-mounted automotive systems. The SMCG6.5A-M3/9AT meets the reliability requirements for production ECUs and BCMs.
What does the "M3" suffix indicate in SMCG6.5A-M3/9AT?
The "M3" suffix in SMCG6.5A-M3/9AT denotes halogen-free, RoHS-compliant construction with industrial-grade reliability. It specifies matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and passes JESD 201 Class 2 whisker testing. The SMCG6.5A-M3/9AT is not just RoHS-compliant but also environmentally optimized for lead-free reflow and long-term stability.
How does the SMCG6.5A-M3/9AT package differ from SMA or SMC packages?
The SMCG6.5A-M3/9AT uses the DO-215AB (SMCG) gull-wing package - larger than SMA (DO-214AC) and slightly wider than SMC (DO-214AB) - with 7.87 mm length, 3.17 mm width, and 2.41 mm height. Its thermal resistance (RθJA = 75 °C/W) is optimized for 8 mm × 8 mm copper pads, offering better power handling than SMA while maintaining SMT compatibility. The SMCG6.5A-M3/9AT provides superior surge robustness versus SMAJ-series alternatives.
What is the maximum operating junction temperature for SMCG6.5A-M3/9AT?
The SMCG6.5A-M3/9AT has a maximum operating junction temperature (TJ) of +150 °C, enabling deployment in high-ambient environments such as engine compartments or enclosed industrial enclosures. This rating is maintained across its full power derating curve per Figure 2 in the Vishay datasheet 88457. The SMCG6.5A-M3/9AT sustains specified electrical parameters up to this limit without permanent degradation.
SMCG6.5A-M3/9AT 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):
- 6.5V
- Voltage - Breakdown (Min):
- 7.22V
- Voltage - Clamping (Max) @ Ipp:
- 11.2V
- Current - Peak Pulse (10/1000µs):
- 133.9A
- 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)
SMCG6.5A-M3/9AT FAQ
1.How can I place an order for SMCG6.5A-M3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG6.5A-M3/9AT 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 SMCG6.5A-M3/9AT reliable?
The price and inventory of SMCG6.5A-M3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG6.5A-M3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG6.5A-M3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG6.5A-M3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG6.5A-M3/9AT?
SMCG6.5A-M3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG6.5A-M3/9AT 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 SMCG6.5A-M3/9AT?
For technical support, including SMCG6.5A-M3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG6.5A-M3/9AT requirements.
6.How does Aetrix verify that SMCG6.5A-M3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG6.5A-M3/9AT 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 SMCG6.5A-M3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG6.5A-M3/9AT?
All SMCG6.5A-M3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG6.5A-M3/9AT, 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 SMCG6.5A-M3/9AT part is unused and in its original packaging.
Return procedure for SMCG6.5A-M3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG6.5A-M3/9AT Tags
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