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Vishay General Semiconductor - Diodes Division SMBG6.5A-E3/52
- Part No.:
- SMBG6.5A-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG6.5A-E3/52.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,599
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Product details
Overview
SMBG6.5A-E3/52 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 a 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 - deployed in automotive sensor signal lines, industrial I/O ports, and DC power rails.
For engineers reviewing the SMBG6.5A-E3/52 datasheet, SMBG6.5A-E3/52 pinout, SMBG6.5A-E3/52 application, or SMBG6.5A-E3/52 equivalent, key selection criteria include clamping performance under 53.6 A surge, unidirectional polarity with cathode band marking, AEC-Q101 qualification for automotive use, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a fast-acting shunt protector, triggering when reverse voltage exceeds its VBR threshold to clamp transients within nanoseconds. Its glass-passivated junction ensures stable leakage (<500 μA at VWM) and low incremental surge resistance, enabling precise voltage limiting during ESD or inductive switching events.
The device 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, supporting reliable operation in high-temperature automotive engine compartments and industrial control enclosures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - Maximum continuous reverse operating voltage before conduction begins; sets system-level working margin below clamping threshold |
| VBR @ IT = 10 mA | 7.22–7.98 V - Verified breakdown range ensuring consistent turn-on across production lots and temperature |
| VC @ IPPM = 53.6 A | 11.2 V - Clamped voltage during full 600 W transient; defines worst-case stress on downstream ICs |
| IPPM | 53.6 A - Peak surge current capability with 10/1000 μs waveform; validates protection against ISO 7637-2 Pulse 1/2a/5a |
| PPPM | 600 W - Peak pulse power rating; confirms suitability for repetitive transients up to 0.01% duty cycle |
| Junction Temp Range | -55 °C to +150 °C - Enables deployment in under-hood automotive and industrial environments without derating |
| Leakage @ VWM | ≤500 μA - Low standby current preserves signal integrity and battery life in always-on circuits |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; meets UL 94 V-0, MSL Level 1 (260 °C peak), and AEC-Q101 qualification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | High-impedance input during normal operation; low-impedance sink during overvoltage | Connected to protected line (e.g., CAN_H, sensor output); absorbs positive transients to ground |
| Anode | Reference node (typically circuit ground or common return) | Provides return path for clamped current; must be low-inductance connection to minimize VL = L·di/dt overshoot |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Validates protection against severe load-dump and inductive-switching transients per ISO 16750-2 and SAE J1113-11 |
| AEC-Q101 qualified | Confirms reliability for automotive applications including engine control, ADAS sensors, and body electronics |
| Glass passivated chip junction | Ensures long-term stability of VBR and leakage under thermal cycling and humidity exposure |
| Low profile SMBG package | Enables high-density PCB layouts and compatibility with standard SMT pick-and-place equipment |
| Matte tin-plated leads | Supports lead-free reflow (JEDEC J-STD-020) and eliminates whisker risk per JESD 201 Class 2 |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting analog outputs of pressure/temperature sensors in engine management systems from load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between sensor signal line and chassis ground to clamp transients before they reach ADC inputs. Use Value: Limits voltage excursion to ≤11.2 V during 53.6 A surges, preventing damage to 12-bit SAR ADCs and maintaining measurement accuracy. | Use Scenario: Safeguarding RS-485 transceiver data lines in factory automation PLCs exposed to motor drive noise and relay contact bounce. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional TVS (cathode tied to signal line, anode to ground) suppressing both positive and ground-bounce transients. Use Value: Clamps EFT bursts (IEC 61000-4-4) to <12 V, preserving signal integrity and avoiding false logic states in half-duplex communication. |
| DC Power Rail Protection | Consumer Device USB Port |
Use Scenario: Guarding 5 V/12 V supply rails feeding microcontrollers and memory in industrial HMIs against inductive kickback from solenoid drivers. IC Role / Device Role / Timing Role: Parallel-connected TVS absorbing energy from L·di/dt spikes generated by 100 mA–2 A switched loads. Use Value: Dissipates 600 W pulses without degradation, extending system uptime and eliminating need for redundant fusing. | Use Scenario: Adding secondary overvoltage defense on VBUS line of USB 2.0 ports in smart home hubs subjected to hot-plug and cable ESD. IC Role / Device Role / Timing Role: Fast-response (sub-nanosecond) shunt element placed upstream of USB switch IC to divert >8 kV HBM ESD events. Use Value: Achieves <11.2 V clamping at 53.6 A, keeping downstream USB PHY within absolute maximum ratings during ±15 kV air discharge. |
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-E3/52 | Same VWM/VBR/VC, but lower PPPM = 600 W (same rating) and higher IPPM = 62.9 A; identical SMB (DO-214AA) footprint but 0.09 mm taller case | SMBJ variant uses larger SMB package (DO-214AA) with 2.54 mm lead spacing vs. SMBG's 2.29 mm; requires PCB pad revision | Select SMBJ6.5A-E3/52 only if existing layout accommodates DO-214AA or higher surge margin is needed without changing board |
| 1.5SMC6.5A | Same electrical specs (VWM = 6.5 V, VC = 11.2 V), but in larger SMC (DO-214AB) package with 1.5 kW PPPM; not AEC-Q101 qualified | SMC package has 4.32 mm x 2.67 mm footprint vs. SMBG's 4.57 mm x 3.94 mm; suited for non-automotive, higher-power industrial use | Choose 1.5SMC6.5A when 1.5 kW surge handling is required and AEC-Q101 compliance is unnecessary |
Compared with SMBG6.5A-E3/52, SMBJ6.5A-E3/52 offers identical clamping but requires PCB layout update due to DO-214AA pitch, while 1.5SMC6.5A delivers triple the pulse power in a non-automotive-qualified SMC package - making SMBG6.5A-E3/52 optimal for space-constrained, AEC-Q101-mandated automotive modules.
Availability
SMBG6.5A-E3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial I/O protection, and DC power rail safeguarding requiring stable component supply, RoHS-compliant sourcing, and AEC-Q101 validation.
Supply support for SMBG6.5A-E3/52 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 reliability, precision, and automotive-grade qualification.
The SMBG series was engineered specifically for high-reliability surface-mount transient suppression in space-constrained automotive and industrial environments, balancing low-profile packaging with AEC-Q101 compliance and 600 W surge capability.
FAQ
What is the clamping voltage of SMBG6.5A-E3/52 at its rated peak pulse current?
The SMBG6.5A-E3/52 has a maximum clamping voltage (VC) of 11.2 V when subjected to its rated peak pulse current (IPPM) of 53.6 A using a 10/1000 μs waveform. This value is measured per JEDEC standards and guarantees that downstream components see no more than 11.2 V during worst-case transient events, making SMBG6.5A-E3/52 suitable for protecting 5 V and 12 V logic interfaces.
Is SMBG6.5A-E3/52 qualified for automotive applications?
Yes, SMBG6.5A-E3/52 is AEC-Q101 qualified, confirming its reliability for automotive use cases including engine control units, ADAS sensor modules, and body electronics. The "HE3" suffix denotes AEC-Q101 qualification, and this part carries the same qualification under the E3 industrial grade with documented test reports per AEC-Q101 stress requirements.
What does the "-E3/52" suffix indicate in SMBG6.5A-E3/52?
The "-E3" suffix indicates RoHS-compliant, industrial-grade construction with matte tin-plated leads, while "/52" specifies packaging in 7" diameter plastic tape and reel with a base quantity of 750 units. This format aligns with Vishay's standardized ordering code for automated SMT assembly and ensures compatibility with standard pick-and-place feeders.
How does SMBG6.5A-E3/52 differ from bidirectional TVS diodes like SMBG6.5CA?
SMBG6.5A-E3/52 is unidirectional and features a cathode band for polarity identification, conducting only in reverse bias to clamp positive transients to ground. In contrast, SMBG6.5CA is bidirectional with no polarity marking and clamps transients of either polarity - making SMBG6.5A-E3/52 appropriate for DC-coupled lines where ground-referenced protection suffices, while SMBG6.5CA suits AC or floating signal paths.
What is the thermal resistance of SMBG6.5A-E3/52, and how does it affect PCB layout?
SMBG6.5A-E3/52 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. To maintain safe junction temperatures under repetitive surges, designers must implement these minimum pad dimensions and avoid excessive copper isolation - undersized pads increase thermal impedance and risk thermal runaway during sustained transient activity.
SMBG6.5A-E3/52 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:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG6.5A-E3/52 FAQ
1.How can I place an order for SMBG6.5A-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG6.5A-E3/52 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-E3/52 reliable?
The price and inventory of SMBG6.5A-E3/52 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-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBG6.5A-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG6.5A-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG6.5A-E3/52?
SMBG6.5A-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG6.5A-E3/52 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-E3/52?
For technical support, including SMBG6.5A-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG6.5A-E3/52 requirements.
6.How does Aetrix verify that SMBG6.5A-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG6.5A-E3/52 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-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBG6.5A-E3/52?
All SMBG6.5A-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG6.5A-E3/52, 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-E3/52 part is unused and in its original packaging.
Return procedure for SMBG6.5A-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG6.5A-E3/52 Tags
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