My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMBG6.5-E3/5B
- Part No.:
- SMBG6.5-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG6.5-E3/5B.pdf
- Description:
- TVS DIODE 6.5VWM 12.3VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,261
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBG6.5-E3/5B from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in the SMBG package, designed for robust overvoltage protection of DC power rails and signal lines. It features a 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 interfaces and industrial I/O modules.
For engineers reviewing the SMBG6.5-E3/5B datasheet, SMBG6.5-E3/5B pinout, SMBG6.5-E3/5B application, or SMBG6.5-E3/5B equivalent, key selection criteria include unidirectional polarity, DO-215AA (SMBG) surface-mount package compatibility, AEC-Q101 qualification status, RoHS-compliant commercial-grade construction, and thermal resistance (RθJA = 100 °C/W) for board-level thermal design validation.
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 (<500 µA at VWM) and repeatable surge response under repetitive transients.
Engineered for 10/1000 µs surge waveforms, it delivers 53.6 A peak pulse current capability while limiting clamped voltage to 11.2 V - enabling effective protection of 5 V logic interfaces and MOSFET gate drivers without overstressing downstream components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 6.5 V - maximum continuous reverse operating voltage before significant leakage begins; defines safe DC rail margin for 5 V systems. |
| VBR (Breakdown Voltage) | 7.22–7.98 V at 10 mA - precise voltage threshold where avalanche conduction initiates; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 11.2 V at 53.6 A - maximum voltage seen by protected circuit during 10/1000 µs surge; guarantees <11.2 V stress on 5 V ICs. |
| PPPM (Peak Pulse Power) | 600 W - energy-handling capacity under standardized surge; supports repeated ESD and load-dump events in automotive environments. |
| IPPM (Peak Pulse Current) | 53.6 A - maximum non-repetitive surge current it can shunt without failure; sized for IEC 61000-4-5 Level 3 compliance. |
| TJmax | 150 °C - maximum junction temperature; enables operation in under-hood automotive locations with ambient up to 125 °C. |
| RθJA | 100 °C/W - thermal resistance from junction to ambient on standard 0.2" × 0.2" copper pads; informs PCB copper area requirements. |
Pinout & Package
Package: DO-215AA (SMBG), surface-mount gull-wing lead configuration. Matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102. Cathode indicated by band marking on case.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node; completes clamping path when cathode is tied to protected line. |
| Cathode | Protected line interface | Connected to the line being safeguarded (e.g., 5 V supply rail); conducts surge current to anode during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables single-device protection against ISO 7637-2 pulse 1, 2a, and 5a in automotive ECUs without external series impedance. |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for ASIL-B functional safety paths. |
| Glass passivated junction | Ensures stable VBR tolerance and low leakage drift over 15-year field life in humid or thermally cycled environments. |
| DO-215AA (SMBG) package | 0.235" × 0.130" footprint with gull-wing leads - compatible with standard SMT reflow profiles and automated optical inspection (AOI). |
| RoHS-compliant, JESD 201 Class 1A whisker tested | Meets IPC-J-STD-002B solderability and long-term intermetallic growth limits - eliminates risk of tin whisker shorts in sealed enclosures. |
Applications
| Automotive Sensor Interface Protection | Industrial PLC Digital Input Protection |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) from load dump and inductive switching transients in engine control units. IC Role / Device Role: Unidirectional clamping TVS placed between sensor supply line and chassis ground. Use Value: Limits transient voltage to ≤11.2 V during 53.6 A surges, preventing latch-up or oxide damage in 5 V ASICs while maintaining signal integrity. |
Use Scenario: Safeguarding 24 V digital input channels on programmable logic controllers exposed to relay coil flyback and field wiring ESD. IC Role / Device Role: Standoff-rated TVS on input side of optocoupler isolation barrier. Use Value: Clamps 600 W surges to 11.2 V, ensuring optocoupler LED forward voltage remains within safe operating range and avoids false triggering. |
| Consumer USB Power Line Protection | Telecom PoE Data Line Surge Suppression |
|
Use Scenario: Secondary overvoltage protection on 5 V VBUS lines in USB-C power delivery adapters after primary DC-DC regulation. IC Role / Device Role: Final-stage TVS between USB connector and USB PD controller IC. Use Value: Responds in <1 ps to ESD events per IEC 61000-4-2 Level 4, clamping to 11.2 V without degrading 5 V ±5% regulation tolerance. |
Use Scenario: Protecting Ethernet PHY data pairs in IEEE 802.3af/at PoE injectors and splitters from lightning-induced surges on outdoor cabling. IC Role / Device Role: Bi-directional-capable unidirectional TVS used in back-to-back configuration across differential pair. Use Value: Delivers matched 11.2 V clamping on both polarities, preserving common-mode rejection ratio (CMRR) while meeting IEC 61000-4-5 surge immunity. |
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 (6.5 V), but higher PPPM = 600 W and identical VC = 11.2 V; uses DO-214AA (SMB) package with slightly larger footprint (0.236" × 0.157"). | Higher thermal mass allows marginally better sustained surge handling; less suitable for ultra-dense layouts requiring SMBG's smaller 0.235" × 0.130" outline. | Select SMBJ6.5A-E3/5B only if board space permits larger package and higher IPPM margin is required beyond 53.6 A. |
| SAC5.0-03-002 | Lower VWM = 5.0 V, VC = 13.4 V at 30 A, PPPM = 400 W; SOD-323 package (1.7 mm × 1.3 mm), not AEC-Q101 qualified. | Targeted at portable electronics ESD protection; insufficient clamping headroom and power rating for automotive or industrial 5 V rail protection. | Use SAC5.0-03-002 only for space-constrained consumer devices with lower-energy transients and no automotive qualification requirement. |
Compared with SMBJ6.5A-E3/5B and SAC5.0-03-002, SMBG6.5-E3/5B uniquely balances AEC-Q101 qualification, DO-215AA compactness, and precise 11.2 V clamping - making it optimal for automotive and industrial 5 V system protection where layout density and reliability certification are jointly critical.
Availability
SMBG6.5-E3/5B is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC inputs, and USB-C power adapter designs requiring stable component supply with full traceability and long-lifecycle support.
Supply support for SMBG6.5-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 high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The SMBG series was developed specifically for surface-mount transient suppression in space-constrained, high-surge environments - emphasizing AEC-Q101 qualification, tight VBR tolerance, and consistent clamping performance across temperature.
FAQ
What is the polarity configuration of SMBG6.5-E3/5B?
The SMBG6.5-E3/5B is a unidirectional transient voltage suppressor diode, with cathode identified by a band marking on the case. It conducts only when the cathode is at a higher potential than the anode - making it suitable for protecting positive DC rails like 5 V supplies. This differs from bi-directional variants (e.g., SMBG6.5CA) which lack polarity marking and conduct in both directions.
Does SMBG6.5-E3/5B meet automotive qualification standards?
Yes, SMBG6.5-E3/5B is AEC-Q101 qualified, having passed stress tests including temperature cycling, high-temperature reverse bias (HTRB), and ESD per JESD22-A114. This qualification confirms its suitability for under-hood and cabin applications in passenger vehicles and commercial vehicles where reliability under thermal and electrical stress is mandatory.
What is the maximum clamping voltage of SMBG6.5-E3/5B under surge conditions?
The SMBG6.5-E3/5B has a maximum clamping voltage (VC) of 11.2 V at 53.6 A peak pulse current with a 10/1000 µs waveform. This value is guaranteed across the full operating temperature range (−55 °C to +150 °C) and ensures protected 5 V circuits remain within safe operating limits during standardized surge events.
Is SMBG6.5-E3/5B RoHS-compliant and lead-free?
Yes, SMBG6.5-E3/5B carries the "E3" suffix indicating full RoHS compliance per Directive 2011/65/EU, with lead-free matte tin plating on gull-wing leads. It also meets JESD 201 Class 1A whisker testing requirements, confirming long-term solder joint integrity in sealed or high-humidity environments.
What package type does SMBG6.5-E3/5B use, and what are its key mechanical dimensions?
SMBG6.5-E3/5B uses the DO-215AA (SMBG) surface-mount package: 0.235" × 0.130" body size, 0.030" nominal lead thickness, with gull-wing leads extending 0.077" from the body. Its compact footprint and low profile (0.058" height) support high-density PCB layouts and automated placement in automotive and industrial assemblies.
SMBG6.5-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:
- 1
- Bidirectional Channels:
- -
- 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)
SMBG6.5-E3/5B FAQ
1.How can I place an order for SMBG6.5-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG6.5-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 SMBG6.5-E3/5B reliable?
The price and inventory of SMBG6.5-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 SMBG6.5-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBG6.5-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG6.5-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG6.5-E3/5B?
SMBG6.5-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG6.5-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 SMBG6.5-E3/5B?
For technical support, including SMBG6.5-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG6.5-E3/5B requirements.
6.How does Aetrix verify that SMBG6.5-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG6.5-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 SMBG6.5-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBG6.5-E3/5B?
All SMBG6.5-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG6.5-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 SMBG6.5-E3/5B part is unused and in its original packaging.
Return procedure for SMBG6.5-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG6.5-E3/5B Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
