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Vishay General Semiconductor - Diodes Division SMBG6.5C-E3/5B
- Part No.:
- SMBG6.5C-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG6.5C-E3/5B.pdf
- Description:
- TVS DIODE 6.5VWM 12.3VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,170
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Product details
Overview
SMBG6.5C-E3/5B from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-215AA (SMBG) package, designed for clamping voltage transients on signal or power lines. It features 6.5 V stand-off voltage (VWM), 7.22–7.98 V breakdown voltage (VBR) at 10 mA, 11.2 V maximum clamping voltage (VC) at 53.6 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform-used in automotive sensor protection and industrial I/O interface surge suppression.
For engineers reviewing the SMBG6.5C-E3/5B datasheet, SMBG6.5C-E3/5B pinout, SMBG6.5C-E3/5B application, or SMBG6.5C-E3/5B equivalent, key selection criteria include bi-directional clamping capability, AEC-Q101 qualification, MSL Level 1 moisture sensitivity, RoHS-compliant matte tin terminations, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This bi-directional TVS diode operates symmetrically in both polarities, with identical electrical characteristics forward and reverse-enabling protection of AC-coupled or differential signal paths without polarity constraints. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 µA at VWM), while the low incremental surge resistance supports tight clamping under high-current transients.
The device is rated for 150 °C maximum junction temperature and exhibits 100 °C/W typical thermal resistance (junction-to-ambient) when mounted per recommended 0.2" × 0.2" copper pad layout. It meets UL 94 V-0 flammability requirements and passes JESD 201 Class 1A whisker testing due to its E3 suffix construction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 7.22 V / 7.98 V at 10 mA - Ensures reliable turn-on within defined tolerance band during surge events |
| VC @ IPPM | 11.2 V at 53.6 A - Clamped voltage seen by protected circuit during 10/1000 µs transient |
| PPPM | 600 W - Peak surge power handling capability with standard 10/1000 µs waveform |
| TJ max | +150 °C - Enables operation in under-hood automotive and high-temperature industrial environments |
| MSL Level | Level 1 (per J-STD-020) - No floor life limitation; safe for reflow without dry pack or baking |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
DO-215AA (SMBG) surface-mount package: low-profile, gull-wing leads, matte tin-plated terminations solderable per J-STD-020 and JESD 22-B102. Bi-directional configuration has no polarity marking; cathode band omitted per specification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Both terminals function identically-no polarity dependency; bidirectional clamping across either terminal pair |
| Case / Body | Thermal and mechanical interface | Non-conductive molding compound meeting UL 94 V-0; provides mechanical robustness and thermal dissipation path via PCB copper pads |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping symmetry | Identical VBR, VC, and IPPM in both directions-eliminates need for orientation-aware layout in AC/differential circuits |
| Glass-passivated junction | Stable breakdown voltage over lifetime and temperature; reduces parameter drift vs. epoxy-passivated alternatives |
| AEC-Q101 qualification | Validated for automotive applications including engine control units, ADAS sensors, and body electronics |
| 600 W peak pulse power | Handles IEC 61000-4-5 Level 4 surges (4 kV line-earth) when properly mounted on 5 mm × 5 mm copper pads |
| MSL Level 1 compliance | Enables direct placement into reflow oven without preconditioning-reduces manufacturing complexity and cost |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN, LIN, or analog sensor inputs (e.g., pressure, temperature) from load-dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Standby clamping element placed directly at connector entry point to shunt surge energy before reaching signal conditioning ICs. Use Value: Limits transient voltage to ≤11.2 V, preventing damage to downstream 12 V-tolerant op-amps and ADC front-ends while maintaining signal integrity. | Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to field wiring surges from motor contactors or solenoid coils. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24 V DC input channels, coordinated with series impedance to limit let-through current. Use Value: Withstands repetitive 600 W pulses at 0.01% duty cycle, enabling long-term reliability in factory automation environments with frequent switching noise. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Transient suppression on RS-485 or Ethernet PHY interfaces in base station remote units subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Secondary-level protection stage following gas discharge tube (GDT), providing fast-response clamping after GDT crowbar action. Use Value: 10/1000 µs response ensures clamping occurs within microseconds-critical for protecting sensitive PHY transceivers before damage threshold is exceeded. | Use Scenario: Input protection for microcontroller-based motor drivers in washing machines or HVAC blowers where brushed motor commutation generates high dv/dt spikes. IC Role / Device Role / Timing Role: Bidirectional clamp across H-bridge supply rails or feedback sensing nodes to absorb back-EMF energy. Use Value: Symmetrical clamping prevents latch-up or false triggering in half-bridge gate drivers during rapid polarity reversals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.5CA-E3/5B | Same VWM (6.5 V), identical DO-214AA (SMB) package but slightly higher VC (11.3 V vs. 11.2 V); lower PPPM (600 W same), same AEC-Q101 qualification | Compatible in footprint and function; minor clamping voltage difference may affect margin in ultra-low-voltage rail protection | Select SMBJ6.5CA-E3/5B if legacy SMB footprint compatibility is required; SMBG6.5C-E3/5B offers newer DO-215AA mechanical robustness. |
| SMCJ6.5CA-E3/5B | Same VWM and bi-directionality, but larger DO-214AB (SMC) package; higher PPPM (1500 W), higher VC (13.4 V), same AEC-Q101 | Used where higher surge energy absorption is needed; requires larger PCB area and different thermal pad layout | Choose SMCJ6.5CA-E3/5B only when system-level surge testing exceeds 600 W requirements-otherwise SMBG6.5C-E3/5B provides optimal size/power balance. |
Compared with SMBJ6.5CA-E3/5B and SMCJ6.5CA-E3/5B, SMBG6.5C-E3/5B delivers identical clamping performance in a more compact DO-215AA package with improved mechanical stability and optimized thermal path for dense automotive PCB layouts-making it preferred for space-constrained, high-reliability applications requiring AEC-Q101 validation.
Availability
SMBG6.5C-E3/5B is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line protection requiring stable component supply, AEC-Q101 compliance, and RoHS-conforming manufacturing.
Supply support for SMBG6.5C-E3/5B 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 qualification.
The SMBG series was developed specifically for high-volume, space-constrained transient suppression in automotive and industrial systems-balancing low profile, AEC-Q101 validation, and consistent clamping performance across temperature and lifetime.
FAQ
What is the polarity configuration of SMBG6.5C-E3/5B?
The SMBG6.5C-E3/5B is a bi-directional TVS diode with symmetrical electrical characteristics in both directions. It has no polarity marking on the package-unlike uni-directional variants-and functions identically regardless of voltage polarity applied across its terminals. This makes SMBG6.5C-E3/5B ideal for protecting AC-coupled signals, differential buses like CAN or RS-485, and any circuit where transient direction cannot be predicted.
Does SMBG6.5C-E3/5B meet automotive reliability standards?
Yes, SMBG6.5C-E3/5B is AEC-Q101 qualified, confirming its suitability for automotive applications including engine control, body electronics, and ADAS sensor interfaces. The qualification covers stress tests such as high-temperature reverse bias (HTRB), temperature cycling, and electrostatic discharge (ESD). Its DO-215AA package also meets MSL Level 1, eliminating floor-life concerns during SMT assembly-a critical requirement for Tier 1 automotive suppliers.
What is the maximum clamping voltage of SMBG6.5C-E3/5B under surge conditions?
The SMBG6.5C-E3/5B has a maximum clamping voltage (VC) of 11.2 V at 53.6 A peak pulse current, measured using the standard 10/1000 µs waveform. This value represents the highest voltage that will appear across the protected circuit during a full-power transient event. Engineers use this parameter to verify that downstream components-such as 12 V-tolerant MCUs or analog front-ends-remain within their absolute maximum ratings during surge exposure.
How does the DO-215AA (SMBG) package differ from DO-214AA (SMB)?
The DO-215AA (SMBG) package used by SMBG6.5C-E3/5B features wider gull-wing leads and enhanced mechanical rigidity compared to DO-214AA (SMB), improving solder joint reliability under thermal cycling and vibration. While both packages share similar outline dimensions, DO-215AA offers better thermal performance due to optimized leadframe design and is specified for higher-reliability applications-including those requiring AEC-Q101 certification-whereas DO-214AA is typically used in commercial-grade designs.
Can SMBG6.5C-E3/5B be used in place of a uni-directional TVS diode?
No-SMBG6.5C-E3/5B is strictly bi-directional and must not replace a uni-directional TVS diode in DC-biased circuits where forward conduction would cause short-circuit failure. Uni-directional devices (e.g., SMBG6.5A-E3/5B) conduct only in reverse bias and block forward current; SMBG6.5C-E3/5B conducts in both directions above VBR. Substitution requires verifying circuit topology, bias conditions, and clamping behavior-especially in power rail protection where polarity matters.
SMBG6.5C-E3/5B 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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 6.5V
- Voltage - Breakdown (Min):
- 7.22V
- Voltage - Clamping (Max) @ Ipp:
- 12.3V
- Current - Peak Pulse (10/1000µs):
- 48.8A
- Power - Peak Pulse:
- 600W
- 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-214AA (SMBG)
SMBG6.5C-E3/5B FAQ
1.How can I place an order for SMBG6.5C-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG6.5C-E3/5B 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 SMBG6.5C-E3/5B reliable?
The price and inventory of SMBG6.5C-E3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG6.5C-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBG6.5C-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG6.5C-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG6.5C-E3/5B?
SMBG6.5C-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG6.5C-E3/5B 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 SMBG6.5C-E3/5B?
For technical support, including SMBG6.5C-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG6.5C-E3/5B requirements.
6.How does Aetrix verify that SMBG6.5C-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG6.5C-E3/5B 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 SMBG6.5C-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBG6.5C-E3/5B?
All SMBG6.5C-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG6.5C-E3/5B, 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 SMBG6.5C-E3/5B part is unused and in its original packaging.
Return procedure for SMBG6.5C-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG6.5C-E3/5B Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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