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Vishay General Semiconductor - Diodes Division SMBG6.5A-M3/52
- Part No.:
- SMBG6.5A-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG6.5A-M3/52.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,810
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Product details
Overview
SMBG6.5A-M3/52 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for robust overvoltage protection of sensitive electronics. It features 6.5 V stand-off voltage (VWM), 7.22–7.98 V breakdown voltage (VBR) at 10 mA, 11.2 V clamping voltage (VC) at 53.6 A peak pulse current, and 600 W peak pulse power (10/1000 µs). It is widely used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial power supply interfaces.
For engineers reviewing the SMBG6.5A-M3/52 datasheet, SMBG6.5A-M3/52 pinout, SMBG6.5A-M3/52 application, or SMBG6.5A-M3/52 equivalent, key selection criteria include clamping performance under 53.6 A surge, unidirectional polarity with cathode band marking, halogen-free RoHS compliance (M3 suffix), and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR, it avalanches rapidly (<1 ns response) to divert transient energy away from downstream circuitry. Its low incremental surge resistance ensures minimal voltage overshoot during high-current transients like ISO 7637-2 load dump or ESD events.
Designed for surface-mount automated assembly on PCBs with 0.2" × 0.2" copper pads per terminal, it delivers 600 W peak pulse power at TA = 25 °C and derates linearly above 25 °C per Fig. 2, with maximum junction temperature of +150 °C and thermal resistance RθJA = 100 °C/W.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - Maximum continuous reverse operating voltage before clamping begins; sets system-level overvoltage threshold. |
| VBR (min/max) | 7.22 V / 7.98 V at IT = 10 mA - Confirmed avalanche onset range; ensures reliable triggering across process variation. |
| VC @ IPPM | 11.2 V at 53.6 A - Clamped voltage during full 600 W transient; defines worst-case stress on protected IC inputs. |
| PPPM | 600 W (10/1000 µs waveform) - Peak surge energy handling capacity; validated per ANSI/IEEE C62.35. |
| IFSM | 100 A (8.3 ms half-sine) - Surge current rating for unidirectional devices; supports repetitive load-switching events. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive environments. |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, halogen-free, RoHS-compliant, MSL Level 1 (260 °C peak reflow), matte tin-plated leads solderable per J-STD-002/JESD 22-B102. Polarity marked by cathode band on case.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path (cathode-banded side is reverse-biased during protection) | Connected to ground or low-impedance return path; completes shunt path for transient current. |
| Cathode | Reverse-biased terminal during normal operation; avalanche node during overvoltage | Connected to protected line (e.g., 12 V rail or sensor input); clamps to ≤11.2 V when VIN > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables protection against severe transients such as ISO 7637-2 Pulse 5a (load dump) without failure. |
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics with extended temperature cycling and humidity testing. |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage stress on downstream components compared to higher-ratio TVS devices. |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets environmental compliance requirements for industrial and automotive OEM production without compromising surge robustness. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump transients up to 120 V and 100 ms duration. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between power rail and chassis ground to clamp surges before they reach LDOs or microcontrollers. Use Value: Limits rail voltage to ≤11.2 V during 53.6 A transients, preventing latch-up or gate oxide damage in downstream silicon. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure or temperature sensors) connected to PLC I/O modules exposed to field wiring noise. IC Role / Device Role / Timing Role: Low-capacitance TVS placed directly at connector entry point to absorb fast ESD (IEC 61000-4-2) and inductive switching spikes. Use Value: Sub-1 ns response time and 11.2 V clamping prevent false readings or ADC saturation during 8 kV contact discharge events. |
| Consumer Power Adapter Input Stage | Telecom DC Feeder Line Protection |
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters subjected to lightning-induced surges on mains-connected output rails. IC Role / Device Role / Timing Role: Standoff-rated TVS on +5 V or +12 V output lines, coordinated with upstream fuses and common-mode chokes. Use Value: 6.5 V VWM allows stable regulation under nominal conditions while clamping to 11.2 V during 600 W transients-preserving USB or PoE compatibility. | Use Scenario: Protecting -48 V telecom DC distribution lines feeding remote radio units from induced surges on long outdoor cable runs. IC Role / Device Role / Timing Role: Unidirectional TVS referenced to negative rail, absorbing positive-going transients while maintaining reverse blocking integrity. Use Value: 100 A IFSM rating supports repeated 8.3 ms surges typical of telecom lightning protection standards (ITU-T K.20/K.21). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBG6.5A-E3/52 | Same electrical specs; RoHS-compliant but not halogen-free (E3 vs. M3) | Preferred for non-automotive industrial use where halogen-free requirement is not mandated | Select SMBG6.5A-E3/52 if halogen-free certification is unnecessary and cost optimization is prioritized. |
| SMBG6.5AHE3/52 | Identical electrical specs plus AEC-Q101 qualification (HE3 suffix denotes automotive grade) | Required for automotive applications requiring full PPAP documentation and extended reliability validation | Choose SMBG6.5AHE3/52 when qualifying for Tier-1 automotive programs with formal AEC-Q101 evidence requirements. |
Compared with SMBG6.5A-M3/52, the E3 variant offers identical protection performance without halogen-free assurance, while the HE3 variant adds formal automotive qualification-making SMBG6.5A-M3/52 the optimal balance of halogen-free compliance and industrial-grade AEC-Q101 readiness for mid-tier automotive and harsh-environment industrial designs.
Availability
SMBG6.5A-M3/52 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface protection, and telecom DC feeder line protection requiring stable component supply, halogen-free compliance, and AEC-Q101-aligned reliability.
Supply support for SMBG6.5A-M3/52 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 high-reliability, high-power, and automotive-qualified solutions.
The SMBG series was developed to deliver high-power transient suppression in compact surface-mount packages for space-constrained automotive and industrial systems, combining AEC-Q101 qualification with industry-standard DO-215AA mechanical compatibility.
FAQ
What is the clamping voltage of SMBG6.5A-M3/52 and how is it measured?
The SMBG6.5A-M3/52 has a maximum clamping voltage (VC) of 11.2 V, measured at its rated peak pulse current (IPPM) of 53.6 A using a 10/1000 µs double-exponential waveform. This value is guaranteed per the Vishay datasheet (Document Number: 88456, Rev. 09-Jan-2024) and reflects worst-case voltage seen by protected circuitry during a full 600 W transient event. The SMBG6.5A-M3/52 maintains this clamping performance across its specified operating temperature range.
Is SMBG6.5A-M3/52 suitable for automotive applications?
Yes, SMBG6.5A-M3/52 is AEC-Q101 qualified and explicitly listed in Vishay's qualified parts list for automotive use. Its construction-including glass passivated junction, MSL Level 1 reflow capability, and operation from –55 °C to +150 °C-meets automotive environmental and reliability requirements. While the M3 suffix denotes halogen-free industrial grade, the device shares the same AEC-Q101 qualification as the HE3/HM3 variants, making SMBG6.5A-M3/52 appropriate for non-PPAP automotive subsystems such as body control modules and infotainment power supplies.
What does the "M3" suffix mean in SMBG6.5A-M3/52?
The "M3" suffix in SMBG6.5A-M3/52 indicates halogen-free, RoHS-compliant, industrial-grade construction per Vishay's ordering nomenclature. It specifies that the molding compound contains no brominated or chlorinated flame retardants, satisfying strict environmental regulations for consumer, industrial, and many automotive applications. Unlike the "HE3" or "HM3" suffixes, M3 does not imply additional AEC-Q101 documentation packaging-but the underlying die and qualification remain AEC-Q101 compliant as confirmed in the primary datasheet.
How does SMBG6.5A-M3/52 differ from bidirectional TVS diodes like SMBG6.5CA?
SMBG6.5A-M3/52 is unidirectional and features a cathode band for polarity identification, enabling use only in DC circuits where reverse voltage must be blocked. In contrast, SMBG6.5CA is bidirectional with no polarity marking and symmetric clamping in both directions-suitable for AC signal lines or differential buses. The SMBG6.5A-M3/52 has lower leakage at VWM (500 µA max) than SMBG6.5CA (1000 µA max for VWM ≤10 V), and supports 100 A IFSM, which bidirectional types do not specify. These distinctions make SMBG6.5A-M3/52 ideal for DC power rail protection.
What is the thermal resistance of SMBG6.5A-M3/52 and how does it affect layout design?
SMBG6.5A-M3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as defined in the Vishay datasheet. This value guides PCB layout: to maintain TJ ≤150 °C under sustained 600 W pulses, designers must ensure adequate copper area and minimize trace length to ground planes. Derating curves (Fig. 2) show power capability drops to ~400 W at TA = 85 °C-so SMBG6.5A-M3/52 requires careful thermal management in enclosed or high-ambient environments.
SMBG6.5A-M3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-215AA, SMB 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):
- 53.6A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG6.5A-M3/52 FAQ
1.How can I place an order for SMBG6.5A-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG6.5A-M3/52 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 SMBG6.5A-M3/52 reliable?
The price and inventory of SMBG6.5A-M3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG6.5A-M3/52 is usually 5 days.
3.What payment methods are accepted for SMBG6.5A-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG6.5A-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG6.5A-M3/52?
SMBG6.5A-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG6.5A-M3/52 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 SMBG6.5A-M3/52?
For technical support, including SMBG6.5A-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG6.5A-M3/52 requirements.
6.How does Aetrix verify that SMBG6.5A-M3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG6.5A-M3/52 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 SMBG6.5A-M3/52 meets industry standards.
7.What is the process for return or replacement of SMBG6.5A-M3/52?
All SMBG6.5A-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG6.5A-M3/52, 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 SMBG6.5A-M3/52 part is unused and in its original packaging.
Return procedure for SMBG6.5A-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG6.5A-M3/52 Tags
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