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Vishay General Semiconductor - Diodes Division SMBG6.5A-E3/5B
- Part No.:
- SMBG6.5A-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG6.5A-E3/5B.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,687
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Product details
Overview
SMBG6.5A-E3/5B 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 rating with 10/1000 μs waveform - deployed in automotive sensor signal lines, industrial I/O interfaces, and DC power rail protection.
For engineers reviewing the SMBG6.5A-E3/5B datasheet, SMBG6.5A-E3/5B pinout, SMBG6.5A-E3/5B application, or SMBG6.5A-E3/5B equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 150 °C max junction temperature, low incremental surge resistance, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a clamping device that remains high-impedance below 6.5 V and rapidly transitions to low-impedance conduction above its 7.22–7.98 V breakdown threshold. Its glass-passivated junction ensures stable leakage performance (<500 μA at VWM) and fast response time (<1 ns), enabling effective suppression of ESD, lightning-induced surges, and inductive switching transients.
The SMBG6.5A-E3/5B is rated for 100 A non-repetitive forward surge current (8.3 ms half-sine), supports MSL Level 1 moisture sensitivity, and achieves thermal resistance of 100 °C/W (junction-to-ambient) when mounted per recommended pad layout - making it suitable for space-constrained, thermally demanding environments.
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 - precise breakdown range defining turn-on consistency |
| VC @ IPPM | 11.2 V at 53.6 A - clamped voltage during 600 W transient, limiting downstream stress |
| IPPM | 53.6 A - peak pulse current capability under standardized 10/1000 μs waveform |
| PPPM | 600 W - transient energy handling capacity without degradation |
| TJ max | +150 °C - maximum junction temperature enabling operation in under-hood automotive zones |
| Leakage @ VWM | <500 μA - minimal standby power loss and signal integrity impact |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, low-profile gull-wing lead frame with matte tin-plated terminals solderable per J-STD-002 and JESD 22-B102. Cathode indicated by band marking; polarity-critical for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during clamping | Connected to protected line (e.g., signal or power rail); must be routed with low-inductance path |
| Cathode | Current exit point during clamping | Connected to ground or lower-potential reference; band-marked end defines cathode orientation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Glass passivated junction | Enhanced long-term stability and reduced parameter drift under thermal stress |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth) without failure |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without preconditioning |
| Low profile SMBG package | 0.255" × 0.155" footprint enables dense PCB layouts in compact modules |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load-dump and ISO 7637-2 pulses. IC Role / Device Role: Unidirectional clamping TVS placed between signal line and chassis ground. Use Value: Limits transient voltage to ≤11.2 V, preventing damage to 5 V or 3.3 V interface ICs while maintaining signal fidelity. | Use Scenario: Shielding digital input modules from field-wiring induced surges in factory automation cabinets. IC Role / Device Role: Primary overvoltage clamp on 24 V DC input channels before optocoupler or MCU GPIO. Use Value: Absorbs up to 600 W surge energy without latch-up, ensuring system uptime during maintenance-related wiring faults. |
| DC Power Rail Protection | Consumer USB Port ESD Protection |
Use Scenario: Safeguarding 5 V/12 V power distribution networks in embedded controllers against inductive kickback. IC Role / Device Role: Parallel-connected TVS across supply rail and ground near connector entry point. Use Value: Clamps transients to 11.2 V within nanoseconds, preventing brownout or reset events in downstream regulators and logic. | Use Scenario: Adding secondary-level ESD immunity to USB 2.0 data lines in portable devices. IC Role / Device Role: Unidirectional TVS on D+ and D− lines referenced to local ground plane. Use Value: Withstands ±15 kV contact discharge (IEC 61000-4-2) while adding <1 pF capacitance, preserving signal integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.5A | Same VWM/VBR/VC, but 600 W rating uses larger SMB (DO-214AA) package with higher RθJA (110 °C/W) | Less suitable for ultra-dense layouts; requires larger pad area | Select SMBJ6.5A only if board space allows larger footprint and thermal margin is less constrained |
| SMAJ6.5A | Same electrical specs but in smaller SMA (DO-214AC) package; lower PPPM derating above 25 °C due to higher RθJA (140 °C/W) | Limited to lower-duty-cycle transients in ambient >70 °C | Prefer SMAJ6.5A only for cost-sensitive consumer designs with infrequent surge exposure |
Compared with SMBJ6.5A and SMAJ6.5A, the SMBG6.5A-E3/5B delivers identical clamping performance in a more compact, thermally efficient SMBG package - optimized for AEC-Q101-compliant automotive and high-reliability industrial use where board area and thermal management are critical.
Availability
SMBG6.5A-E3/5B is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and DC power rail protection requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SMBG6.5A-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 and automotive qualification.
The SMBG series was engineered specifically for high-power, surface-mount transient suppression in harsh environments - targeting AEC-Q101 compliance, low-profile integration, and repeatable clamping performance across automotive, industrial, and telecom infrastructure.
FAQ
What is the clamping voltage of SMBG6.5A-E3/5B and how is it measured?
The SMBG6.5A-E3/5B has a maximum clamping voltage (VC) of 11.2 V, measured at its peak pulse current (IPPM) of 53.6 A using the standardized 10/1000 μs double-exponential surge waveform. This value reflects the actual voltage seen by protected circuitry during worst-case transient events and is guaranteed per Vishay's test conditions in Document Number 88456. The SMBG6.5A-E3/5B maintains this clamping performance across its full operating temperature range.
Is SMBG6.5A-E3/5B RoHS compliant and halogen-free?
Yes, the SMBG6.5A-E3/5B carries the "E3" suffix, indicating RoHS compliance and industrial-grade qualification per JEDEC standards. It is not halogen-free; for halogen-free and RoHS-compliant versions, refer to part numbers with "M3" suffix (e.g., SMBG6.5A-M3/5B). All E3 variants meet JESD 201 Class 2 whisker resistance and UL 94 V-0 flammability requirements.
Does SMBG6.5A-E3/5B support bidirectional transient suppression?
No, SMBG6.5A-E3/5B is a unidirectional TVS diode, as confirmed by its "A" suffix and cathode band marking. Bidirectional variants in the same family use the "CA" suffix (e.g., SMBG6.5CA). Using SMBG6.5A-E3/5B in AC or bipolar signal paths would result in unintended forward conduction - always verify polarity alignment during layout.
What is the maximum operating temperature for SMBG6.5A-E3/5B?
The SMBG6.5A-E3/5B has a maximum junction temperature (TJ) of +150 °C and an operating storage temperature range of -55 °C to +150 °C. Its thermal resistance (RθJA) is 100 °C/W when mounted on the recommended 0.2" × 0.2" copper pads. Derating curves in Figure 2 of Document 88456 must be applied for ambient temperatures above 25 °C to ensure safe operation of the SMBG6.5A-E3/5B.
How does the SMBG6.5A-E3/5B compare to older SMBJ-series TVS diodes?
The SMBG6.5A-E3/5B offers identical electrical specifications to SMBJ6.5A but in a smaller SMBG (DO-215AA) package - reducing footprint by ~25% versus SMB (DO-214AA). It also features improved thermal resistance (100 vs. 110 °C/W) and AEC-Q101 qualification out-of-box, whereas many SMBJ variants require separate automotive screening. The SMBG6.5A-E3/5B thus provides higher density and assured automotive readiness without design compromise.
SMBG6.5A-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:
- 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:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG6.5A-E3/5B FAQ
1.How can I place an order for SMBG6.5A-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG6.5A-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 SMBG6.5A-E3/5B reliable?
The price and inventory of SMBG6.5A-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 SMBG6.5A-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBG6.5A-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG6.5A-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG6.5A-E3/5B?
SMBG6.5A-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG6.5A-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 SMBG6.5A-E3/5B?
For technical support, including SMBG6.5A-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG6.5A-E3/5B requirements.
6.How does Aetrix verify that SMBG6.5A-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG6.5A-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 SMBG6.5A-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBG6.5A-E3/5B?
All SMBG6.5A-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG6.5A-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 SMBG6.5A-E3/5B part is unused and in its original packaging.
Return procedure for SMBG6.5A-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG6.5A-E3/5B Tags
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