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Vishay General Semiconductor - Diodes Division SMBG6.5CA-E3/5B
- Part No.:
- SMBG6.5CA-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG6.5CA-E3/5B.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,293
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Product details
Overview
SMBG6.5CA-E3/5B from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for clamping ESD and surge transients on signal/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 max clamping voltage (VC) at 53.6 A peak pulse current, and 600 W peak pulse power (10/1000 μs). It is AEC-Q101 qualified and used to protect automotive sensor interfaces and industrial I/O lines.
For engineers reviewing the SMBG6.5CA-E3/5B datasheet, SMBG6.5CA-E3/5B pinout, SMBG6.5CA-E3/5B application, or SMBG6.5CA-E3/5B equivalent, key selection criteria include bidirectional clamping capability, low VC/VBR ratio (≤1.55), MSL Level 1 solderability, and compatibility with 0.2" × 0.2" copper pad layout per JEDEC standards.
Technical Context
This device operates as a voltage-clamped shunt protector: under normal bias it presents high impedance (>800 μA leakage at VWM), but triggers into low-impedance conduction when transient voltage exceeds VBR, limiting downstream voltage to ≤11.2 V. Its glass-passivated junction ensures stable avalanche characteristics and fast response (<1 ns).
The SMBG6.5CA-E3/5B is rated for -55 °C to +150 °C operating junction temperature, with thermal resistance RθJA = 100 °C/W (on 0.2" × 0.2" pads) and RθJL = 20 °C/W. It meets UL 497B recognition (QVGQ2) and complies with JESD201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - maximum continuous reverse working voltage before clamping begins |
| VBR (min/max) | 7.22 V / 7.98 V at 10 mA - defines reliable avalanche initiation window for design margining |
| VC @ IPPM | 11.2 V at 53.6 A - clamped voltage during 600 W 10/1000 μs surge, critical for IC survivability |
| PPPM | 600 W - peak pulse power handling per single transient, derated above 25 °C |
| IPPM | 53.6 A - peak surge current supported with 10/1000 μs waveform, determines PCB trace sizing |
| TJ range | -55 °C to +150 °C - enables use in under-hood automotive and industrial ambient environments |
| MSL Level | Level 1 (260 °C peak reflow) - supports standard SMT assembly without dry pack or baking |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount gull-wing, matte tin-plated leads, unmarked polarity (bidirectional).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | Connects to protected line; conducts during both positive and negative surges |
| Cathode | Transient return path (bidirectional) | Electrically identical to anode; no polarity marking required for CA devices |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronics including engine control, ADAS sensors, and body modules |
| 600 W peak pulse power | Withstands ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 Level 3 surges without degradation |
| Low clamping ratio (VC/VBR ≈ 1.48) | Minimizes overvoltage stress on downstream ICs such as CAN transceivers or ADC front-ends |
| UL 497B recognition (QVGQ2) | Meets safety requirements for telecom and industrial signal-line protection without additional certification |
| MSL Level 1 rating | Enables direct placement into high-volume SMT lines using standard reflow profiles |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting LIN bus or analog sensor outputs (e.g., pressure, temperature) from load-dump and inductive switching transients in vehicle cabins. IC Role / Device Role / Timing Role: Bidirectional shunt clamp placed between signal line and ground, responding within <1 ns to limit voltage to ≤11.2 V. Use Value: Prevents latch-up or gate oxide damage in microcontrollers and signal-conditioning amplifiers exposed to ±100 V transients. | Use Scenario: Safeguarding RS-485/RS-232 data lines in PLC backplanes and motor drive control panels against EFT and surge events. IC Role / Device Role / Timing Role: Low-capacitance (typ. 1000 pF at 0 V) TVS placed at connector entry point to divert surge energy before reaching transceiver IC. Use Value: Maintains signal integrity up to 1 Mbps while surviving repeated 4 kV contact ESD per IEC 61000-4-2. |
| Consumer Power Adapter Input | Telecom Line Card Protection |
Use Scenario: Clamping induced surges on AC-DC adapter primary-side rectifier outputs caused by lightning-induced coupling on mains wiring. IC Role / Device Role / Timing Role: Secondary-side TVS across DC output rails, triggered only during overvoltage excursions beyond 6.5 V. Use Value: Limits output overshoot to safe levels for downstream USB-PD controllers and battery management ICs. | Use Scenario: Protecting Ethernet PHY interface pins (MDI) in VoIP gateways and DSLAM line cards from longitudinal surges on twisted-pair cables. IC Role / Device Role / Timing Role: Bidirectional clamp referenced to local ground, absorbing common-mode transients up to 600 W without affecting differential signaling. Use Value: Enables compliance with GR-1089-CORE and ITU-T K.20/21 immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.5CA | Same VWM/VBR/VC, but lower PPPM = 600 W (same rating), different package (SMB vs SMBG); RθJA = 110 °C/W | Suitable for less thermally constrained layouts; not AEC-Q101 qualified | Select SMBJ6.5CA only if AEC-Q101 is not required and board space allows SMB footprint |
| SMCJ6.5CA | Higher PPPM = 1500 W, larger SMC (DO-214AB) package, VC = 11.5 V at 132 A | Better for high-energy surges (e.g., ISO 16750-2); requires larger PCB area and higher IPPM routing | Choose SMCJ6.5CA when system-level testing demands >1 kV surge immunity or higher repetitive surge duty |
Compared with SMBJ6.5CA and SMCJ6.5CA, the SMBG6.5CA-E3/5B delivers AEC-Q101 qualification and tighter thermal resistance (RθJA = 100 °C/W) in the compact SMBG outline-making it optimal for space-constrained automotive and industrial modules where reliability and reflow compatibility are critical.
Availability
SMBG6.5CA-E3/5B is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial I/O protection, and telecom line-card designs requiring stable component supply and full traceability.
Supply support for SMBG6.5CA-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade validation.
The SMBG series was developed specifically for high-reliability surface-mount transient suppression in automotive and industrial environments, balancing compact size, AEC-Q101 compliance, and robust 600 W surge handling.
FAQ
What is the polarity configuration of SMBG6.5CA-E3/5B?
The SMBG6.5CA-E3/5B is a bidirectional TVS diode with no polarity marking-both terminals function identically as symmetrical avalanche junctions. This allows placement without orientation concerns on differential or AC-coupled signal lines, unlike unidirectional variants that require cathode alignment.
Does SMBG6.5CA-E3/5B meet automotive qualification standards?
Yes, SMBG6.5CA-E3/5B is AEC-Q101 qualified per the Vishay datasheet (Document Number: 88456, Revision: 09-Jan-2024), confirming its suitability for automotive applications including powertrain, chassis, and body electronics where extended temperature operation and long-term reliability are mandatory.
What is the maximum clamping voltage for SMBG6.5CA-E3/5B under surge conditions?
The SMBG6.5CA-E3/5B has a maximum clamping voltage (VC) of 11.2 V at 53.6 A peak pulse current (10/1000 μs waveform), as specified in the Electrical Characteristics table. This value defines the upper voltage limit imposed on protected circuitry during transient events.
Can SMBG6.5CA-E3/5B be used in place of a unidirectional TVS like SMBG6.5A?
No-SMBG6.5CA-E3/5B is bidirectional and lacks polarity marking, whereas SMBG6.5A is unidirectional with cathode band identification. Substitution requires verifying circuit topology: bidirectional use cases (e.g., AC lines, differential buses) support SMBG6.5CA-E3/5B; DC-biased rails require unidirectional devices like SMBG6.5A.
What is the recommended PCB pad layout for SMBG6.5CA-E3/5B?
Vishay specifies mounting on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve rated thermal performance (RθJA = 100 °C/W). The pad layout must follow the DO-215AA outline in the datasheet (page 5), with gull-wing lead spacing of 0.038"–0.058" and adequate solder mask clearance.
SMBG6.5CA-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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG6.5CA-E3/5B FAQ
1.How can I place an order for SMBG6.5CA-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG6.5CA-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 SMBG6.5CA-E3/5B reliable?
The price and inventory of SMBG6.5CA-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 SMBG6.5CA-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBG6.5CA-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG6.5CA-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG6.5CA-E3/5B?
SMBG6.5CA-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG6.5CA-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 SMBG6.5CA-E3/5B?
For technical support, including SMBG6.5CA-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG6.5CA-E3/5B requirements.
6.How does Aetrix verify that SMBG6.5CA-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG6.5CA-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 SMBG6.5CA-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBG6.5CA-E3/5B?
All SMBG6.5CA-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG6.5CA-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 SMBG6.5CA-E3/5B part is unused and in its original packaging.
Return procedure for SMBG6.5CA-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG6.5CA-E3/5B Tags
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