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Vishay General Semiconductor - Diodes Division SMBG6.5AHE3/5B
- Part No.:
- SMBG6.5AHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG6.5AHE3/5B.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,842
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Product details
Overview
SMBG6.5AHE3/5B 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 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 interfaces, and DC power rail protection.
For engineers reviewing the SMBG6.5AHE3/5B datasheet, SMBG6.5AHE3/5B pinout, SMBG6.5AHE3/5B application, or SMBG6.5AHE3/5B 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 standard 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal bias it presents high impedance (< 1 μA reverse leakage at 6.5 V), then rapidly avalanches below 10 ns to clamp transients up to 53.6 A. Its glass-passivated junction ensures stable breakdown characteristics and long-term reliability under repetitive surge stress.
The SMBG6.5AHE3/5B is rated for 100 A non-repetitive forward surge (8.3 ms half-sine) and exhibits 20 °C/W typical junction-to-lead thermal resistance - enabling effective heat dissipation during transient events when mounted per recommended pad layout.
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 above system nominal voltage with margin |
| VC @ IPPM | 11.2 V at 53.6 A - Limits protected circuit voltage during worst-case 600 W transient |
| PPPM | 600 W - Peak pulse power handling with 10/1000 μs waveform, 0.01% duty cycle |
| IFSM | 100 A - Withstands 8.3 ms AC half-sine surge without degradation (unidirectional only) |
| TJ max | +150 °C - Supports operation in under-hood automotive and industrial ambient environments |
| MSL Level | Level 1 (J-STD-020) - Reflow-compatible up to 260 °C peak, no floor life limitation |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, low-profile gull-wing leadframe with matte tin-plated terminals solderable per J-STD-002 and JESD 22-B102. Cathode indicated by molded band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal under forward bias | Connected to system ground or lower-potential node in unidirectional configuration |
| Cathode | Current exit terminal under forward bias; marked with band | Connected to protected line (e.g., sensor output, power rail) - clamps to ground during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Glass passivated junction | Stable VBR tolerance and low leakage across temperature and lifetime |
| 600 W peak pulse power | Handles ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 surge events without failure |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes let-through voltage to protect downstream ICs with tight VDD margins |
| MSL Level 1 compliance | Enables single-pass reflow assembly without baking or special handling |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between signal line and chassis ground, responding within <10 ns to clamp spikes up to ±100 V. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V interface ICs while maintaining signal integrity due to low 11.2 V clamping voltage. | Use Scenario: Safeguarding PLC digital input modules against field-wiring induced surges and electrostatic discharge in factory automation systems. IC Role / Device Role / Timing Role: Mounted at connector entry point to divert >50 A transients away from optocoupler inputs and microcontroller GPIO pins. Use Value: Enables compliance with IEC 61000-4-4 (EFT) and IEC 61000-4-5 (surge) without additional filtering components. |
| DC Power Rail Protection | Consumer Device USB Port |
Use Scenario: Clamping voltage spikes on 5 V/12 V DC power rails caused by relay coil de-energization or hot-plug events in embedded power supplies. IC Role / Device Role / Timing Role: Placed in parallel with bulk capacitor to absorb energy from 600 W transients before reaching downstream regulators and PMICs. Use Value: Maintains regulated output stability by limiting rail excursion to ≤11.2 V, avoiding brown-out resets or overvoltage shutdown. | Use Scenario: Providing secondary-level ESD and surge protection on USB 2.0 data lines and VBUS in portable audio/video devices. IC Role / Device Role / Timing Role: Low-capacitance unidirectional TVS on VBUS line referenced to ground, activated only during overvoltage conditions. Use Value: Complements integrated USB transceiver ESD protection with higher 600 W surge capability and AEC-Q101 reliability for premium consumer products. |
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-E3/5B | Same VWM/VBR/VC, but rated for 600 W with larger SMB (DO-214AA) package; 10% higher RθJA (110 °C/W) | Less space-constrained layouts where thermal mass improves surge endurance | Choose SMBJ6.5A-E3/5B if PCB pad area allows larger footprint and higher thermal budget is needed |
| 1.5SMC6.5AHE3/A | Same electrical specs, but in larger SMC (DO-214AB) package; 1500 W rating, 2× IPPM (107 A), higher capacitance | High-energy surge environments requiring extended surge life, e.g., telecom power entry | Choose 1.5SMC6.5AHE3/A only when 1500 W rating is mandatory and board space permits SMC footprint |
Compared with SMBJ6.5A-E3/5B and 1.5SMC6.5AHE3/A, the SMBG6.5AHE3/5B delivers identical clamping performance in the smallest qualified footprint (SMBG), with AEC-Q101 validation and MSL Level 1 reflow readiness - making it optimal for space-limited automotive and industrial SMT designs where 600 W protection suffices.
Availability
SMBG6.5AHE3/5B is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O interface hardening, and DC power rail transient suppression requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMBG6.5AHE3/5B 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, efficiency, and application-specific optimization.
The SMBG series is engineered for high-reliability surface-mount transient suppression in automotive, industrial, and communications systems - combining AEC-Q101 qualification, low-profile packaging, and precise clamping for next-generation electronics protection.
FAQ
What is the clamping voltage of SMBG6.5AHE3/5B at its rated peak pulse current?
The SMBG6.5AHE3/5B has a maximum clamping voltage (VC) of 11.2 V at its rated peak pulse current of 53.6 A (10/1000 μs waveform). This value is measured under standardized test conditions and defines the upper voltage limit imposed on the protected circuit during a 600 W transient event. The SMBG6.5AHE3/5B maintains this clamping performance across its qualified operating temperature range.
Is SMBG6.5AHE3/5B suitable for automotive applications?
Yes, SMBG6.5AHE3/5B is AEC-Q101 qualified and explicitly rated for automotive use. Its construction includes glass-passivated junction, MSL Level 1 reflow compatibility, and guaranteed operation from –55 °C to +150 °C junction temperature - meeting requirements for engine control units, body electronics, and ADAS sensor interfaces. The SMBG6.5AHE3/5B datasheet confirms qualification per AEC-Q101 test conditions.
What does the "HE3" suffix indicate in SMBG6.5AHE3/5B?
The "HE3" suffix in SMBG6.5AHE3/5B denotes RoHS-compliant construction with AEC-Q101 qualification. Per Vishay's ordering nomenclature, "HE3" identifies the base part as halogen-free, lead-free, and certified for automotive reliability - distinct from "E3" (RoHS industrial grade) and "HM3" (halogen-free + AEC-Q101). The "5B" denotes 13-inch tape-and-reel packaging with 3200 units per reel.
How does SMBG6.5AHE3/5B differ from bidirectional TVS diodes like SMBG6.5CA?
The SMBG6.5AHE3/5B is unidirectional and intended for DC-biased lines where polarity is fixed (e.g., VCC-to-ground protection); it conducts only in reverse breakdown. In contrast, SMBG6.5CA is bidirectional and symmetric - used on AC or floating lines like data buses. The SMBG6.5AHE3/5B offers lower leakage and tighter VBR tolerance than its CA counterpart, but cannot replace bidirectional types without circuit redesign.
What is the thermal resistance of SMBG6.5AHE3/5B, and how does it affect layout design?
The SMBG6.5AHE3/5B has a typical junction-to-lead thermal resistance (RθJL) of 20 °C/W and junction-to-ambient (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" copper pads. To maintain reliability during repeated surges, PCB layout must follow Vishay's recommended pad dimensions and minimize trace inductance - especially for the cathode connection, as excessive RθJA can cause localized overheating and premature failure of the SMBG6.5AHE3/5B.
SMBG6.5AHE3/5B 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG6.5AHE3/5B FAQ
1.How can I place an order for SMBG6.5AHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG6.5AHE3/5B 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 SMBG6.5AHE3/5B reliable?
The price and inventory of SMBG6.5AHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG6.5AHE3/5B is usually 5 days.
3.What payment methods are accepted for SMBG6.5AHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG6.5AHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG6.5AHE3/5B?
SMBG6.5AHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG6.5AHE3/5B 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 SMBG6.5AHE3/5B?
For technical support, including SMBG6.5AHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG6.5AHE3/5B requirements.
6.How does Aetrix verify that SMBG6.5AHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG6.5AHE3/5B 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 SMBG6.5AHE3/5B meets industry standards.
7.What is the process for return or replacement of SMBG6.5AHE3/5B?
All SMBG6.5AHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG6.5AHE3/5B, 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 SMBG6.5AHE3/5B part is unused and in its original packaging.
Return procedure for SMBG6.5AHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG6.5AHE3/5B Tags
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Diodes Incorporated
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