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Vishay General Semiconductor - Diodes Division SMCG6.5A-E3/57T
- Part No.:
- SMCG6.5A-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG6.5A-E3/57T.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,697
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Product details
Overview
SMCG6.5A-E3/57T from Vishay General Semiconductor is a unidirectional surface-mount TransZORB® transient voltage suppressor in DO-215AB (SMCG) package, with 6.5 V stand-off voltage, 7.22–7.98 V breakdown voltage at 10 mA, 1500 W peak pulse power, 133.9 A peak pulse current, and 11.2 V clamping voltage at IPPM. It protects MOSFETs and ICs against inductive switching transients in automotive power electronics.
For engineers reviewing the SMCG6.5A-E3/57T datasheet, SMCG6.5A-E3/57T pinout, SMCG6.5A-E3/57T application, or SMCG6.5A-E3/57T equivalent, key selection criteria include unidirectional polarity, 11.2 V clamping under 10/1000 μs surge, AEC-Q101 qualification, MSL Level 1 rating, and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
This device operates as a silicon avalanche diode optimized for transient suppression using a glass-passivated junction. Its clamping behavior is defined by a 10/1000 μs waveform test condition, with thermal resistance RθJA = 75 °C/W and RθJL = 15 °C/W, enabling reliable operation up to TJ = 150 °C.
The SMCG6.5A-E3/57T exhibits low incremental surge resistance and fast response time due to its planar junction construction. Polarity is marked by a cathode band; it is not rated for bidirectional use, and reverse leakage is limited to 500 μA at VWM = 6.5 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - maximum continuous reverse operating voltage before significant leakage |
| VBR @ IT = 10 mA | 7.22–7.98 V - guaranteed avalanche initiation range under standardized test current |
| VC @ IPPM | 11.2 V - clamped voltage during 133.9 A 10/1000 μs surge, defining protection ceiling |
| PPPM | 1500 W - peak transient power handling capability under standard waveform |
| IPPM | 133.9 A - maximum non-repetitive surge current the device safely clamps |
| TJ max. | +150 °C - maximum junction temperature, supporting under-hood automotive deployment |
| RθJA | 75 °C/W - thermal resistance to ambient on standard 8.0 mm × 8.0 mm pad layout |
Pinout & Package
Package: DO-215AB (SMCG), surface-mount gull-wing leaded case with matte tin-plated terminals, compliant with J-STD-002 and JESD 22-B102 solderability standards. Cathode identified by molded band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward conduction | Connected to system ground or low-side return path during transient clamp |
| Cathode | Current exit terminal in forward conduction; marked with band | Connected to protected line (e.g., 12 V rail, signal input) to shunt surge to ground |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive powertrain and chassis applications per stress test requirements |
| Glass passivated junction | Enhances long-term reliability and moisture resistance vs. epoxy-passivated alternatives |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without preconditioning |
| Low profile DO-215AB package | 0.245" × 0.125" footprint enables high-density PCB layouts in space-constrained modules |
| 1500 W peak pulse rating | Supports robust protection against ISO 7637-2 Pulse 1, 2a, and 5a transients in 12 V systems |
Applications
| Automotive Power Distribution | Industrial Motor Drive Inputs |
|---|---|
Use Scenario: Protection of 12 V supply lines feeding body control modules (BCM) against load dump and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and downstream DC/DC converter input. Use Value: Clamps transients to ≤11.2 V, preventing overvoltage damage to 16 V-rated input stages while surviving 133.9 A surges. | Use Scenario: Input-stage surge suppression on variable-frequency drive (VFD) control boards exposed to contactor switching noise. IC Role / Device Role / Timing Role: Primary transient shunt on AC rectifier output bus prior to bulk capacitor. Use Value: Limits voltage overshoot to 11.2 V during 10/1000 μs surges, preserving IGBT gate driver integrity and reducing snubber losses. |
| Automotive Sensor Signal Lines | Telecom Power Interface |
Use Scenario: CAN/LIN bus line protection in ADAS camera modules subjected to ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance unidirectional clamp on signal line referenced to local ground plane. Use Value: Provides 1500 W surge immunity without distorting 1 Mbps CAN signals due to minimal junction capacitance (<50 pF at 0 V). | Use Scenario: Secondary-side overvoltage protection on PoE-powered Ethernet switches handling IEEE 802.3af/at surges. IC Role / Device Role / Timing Role: Standoff-clamp device across isolated DC output rails supplying PHY ICs. Use Value: Maintains 6.5 V nominal operation while clamping lightning-induced transients to 11.2 V, meeting IEC 61000-4-5 Level 3. |
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-E3/57T | DO-214AC (SMA) package; lower PPPM = 400 W; VC = 11.2 V same | Lower surge capacity limits use to sub-50 A transients; unsuitable for ISO 7637-2 Pulse 5a | Select only where board space allows larger SMA footprint and surge energy is <25% of SMCG6.5A-E3/57T rating |
| SMCJ6.5A-E3/57T | DO-214AB (SMC) package; PPPM = 1500 W same; VC = 11.2 V same; RθJA = 18 °C/W (lower thermal resistance) | Better thermal performance but 30% larger footprint; requires revised pad layout | Prefer when junction temperature margin is critical and PCB area permits larger SMC outline |
Compared with SMAJ6.5A-E3/57T and SMCJ6.5A-E3/57T, the SMCG6.5A-E3/57T delivers identical clamping and peak power in a smaller DO-215AB footprint with AEC-Q101 qualification-making it optimal for space-constrained, automotive-grade designs requiring full ISO 7637 compliance.
Availability
SMCG6.5A-E3/57T is available at Aetrix Electronics and suitable for automotive power distribution, industrial motor drive inputs, and telecom power interface applications requiring stable component supply, AEC-Q101 assurance, and 1500 W transient immunity.
Supply support for SMCG6.5A-E3/57T 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 supplier of discrete semiconductors, specializing in diodes, rectifiers, and protection devices with emphasis on reliability, automotive qualification, and application-specific performance.
The SMCG series is designed for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom systems where compact size, AEC-Q101 compliance, and repeatable clamping are mandatory.
FAQ
What is the clamping voltage of SMCG6.5A-E3/57T under maximum surge conditions?
The SMCG6.5A-E3/57T has a maximum clamping voltage VC of 11.2 V when subjected to its rated 133.9 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during transient events. The SMCG6.5A-E3/57T maintains this clamping performance across its specified operating temperature range.
Is SMCG6.5A-E3/57T qualified for automotive applications?
Yes, SMCG6.5A-E3/57T is AEC-Q101 qualified, meaning it has passed stress tests including high-temperature operating life, temperature cycling, and ESD per automotive reliability standards. It is rated for junction temperatures up to +150 °C and meets MSL Level 1 for lead-free reflow. The SMCG6.5A-E3/57T is intended for use in engine control units, body electronics, and ADAS subsystems where automotive-grade validation is required.
What is the package type and mounting configuration of SMCG6.5A-E3/57T?
The SMCG6.5A-E3/57T uses the DO-215AB (SMCG) surface-mount package with gull-wing leads, measuring 0.245" × 0.125" (6.22 mm × 3.17 mm). It features matte tin-plated terminals solderable per J-STD-002 and JESD 22-B102. The cathode is marked by a molded band, and recommended mounting uses 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal to achieve rated thermal and surge performance. The SMCG6.5A-E3/57T is optimized for automated pick-and-place assembly.
How does SMCG6.5A-E3/57T differ from bidirectional variants like SMCG6.5CA?
The SMCG6.5A-E3/57T is unidirectional, with polarity marked by a cathode band and functional only in reverse-bias clamping mode. In contrast, SMCG6.5CA is bidirectional, lacks polarity marking, and clamps symmetrically in both directions. Electrical differences include higher ID (leakage) limits for low-VWM bidirectional types and distinct VBR symmetry. The SMCG6.5A-E3/57T must not be substituted for SMCG6.5CA in AC-coupled or floating signal paths without circuit redesign.
What is the thermal resistance and power derating behavior of SMCG6.5A-E3/57T?
The SMCG6.5A-E3/57T has a typical junction-to-ambient thermal resistance RθJA of 75 °C/W on the standard 0.31" × 0.31" copper pad layout, and RθJL = 15 °C/W to the lead. Its 6.5 W steady-state power dissipation (PD) is rated at TA = 50 °C and must be derated linearly above that temperature per Figure 2 in the datasheet. At 125 °C ambient, usable PD drops to approximately 1.6 W. The SMCG6.5A-E3/57T's thermal design supports sustained operation in sealed enclosures with moderate airflow.
SMCG6.5A-E3/57T 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-E3/57T FAQ
1.How can I place an order for SMCG6.5A-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG6.5A-E3/57T 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-E3/57T reliable?
The price and inventory of SMCG6.5A-E3/57T 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-E3/57T is usually 5 days.
3.What payment methods are accepted for SMCG6.5A-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG6.5A-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG6.5A-E3/57T?
SMCG6.5A-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG6.5A-E3/57T 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-E3/57T?
For technical support, including SMCG6.5A-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG6.5A-E3/57T requirements.
6.How does Aetrix verify that SMCG6.5A-E3/57T is sourced from the original manufacturer or authorized distributors?
All SMCG6.5A-E3/57T 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-E3/57T meets industry standards.
7.What is the process for return or replacement of SMCG6.5A-E3/57T?
All SMCG6.5A-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCG6.5A-E3/57T, 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-E3/57T part is unused and in its original packaging.
Return procedure for SMCG6.5A-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG6.5A-E3/57T Tags
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