My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMBG6.5-E3/52
- Part No.:
- SMBG6.5-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG6.5-E3/52.pdf
- Description:
- TVS DIODE 6.5VWM 12.3VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,084
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBG6.5-E3/52 from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in the SMBG package, designed for clamping inductive switching transients and ESD events on power 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 maximum clamping voltage (VC) at 53.6 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - used in automotive sensor protection and industrial I/O interfaces.
For engineers reviewing the SMBG6.5-E3/52 datasheet, SMBG6.5-E3/52 pinout, SMBG6.5-E3/52 application, or SMBG6.5-E3/52 equivalent, key selection criteria include unidirectional polarity, DO-215AA (SMBG) package compatibility, 150 °C max junction temperature, AEC-Q101 qualification status, and compliance with UL 497B surge protector classification.
Technical Context
This TVS diode operates as a voltage-clamping device in series with sensitive downstream circuitry, conducting only when reverse voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable leakage performance and fast response (<1 ns), while low incremental surge resistance minimizes clamping overshoot during high-di/dt transients.
The SMBG6.5-E3/52 is rated for 100 A non-repetitive forward surge current (8.3 ms half-sine), supports -55 °C to +150 °C operating range, and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. Its thermal resistance (RθJA) is 100 °C/W on standard 5.0 mm × 5.0 mm copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR @ IT = 10 mA | 7.22–7.98 V - Measured breakdown range confirming reliable turn-on threshold under standardized test conditions. |
| VC @ IPPM = 53.6 A | 11.2 V - Clamped voltage during 10/1000 µs surge; determines maximum stress imposed on protected ICs. |
| PPPM | 600 W - Peak pulse power handling capability; validates robustness against common lightning and inductive load surges. |
| IFSM | 100 A - Single half-sine surge rating (8.3 ms); supports protection of power rails subject to motor or relay switching. |
| Junction Temp Range | -55 °C to +150 °C - Enables deployment in under-hood automotive and industrial environments without derating. |
| Package | DO-215AA (SMBG) - Standardized surface-mount outline with gull-wing leads; compatible with automated placement and reflow. |
Pinout & Package
DO-215AA (SMBG) package: surface-mount gull-wing leaded case with cathode band marking on the anode side; terminals are matte tin-plated and solderable per J-STD-002 and JESD 22-B102; polarity marked by single band indicating cathode end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Current entry point during forward conduction; connected to ground or low-impedance return path. | Provides low-resistance path for surge current to shunt away from protected circuit when VBR exceeded. |
| Cathode (banded end) | Current exit point during clamping; connected to line being protected (e.g., 12 V supply or CAN bus). | Defines polarity-sensitive connection; incorrect orientation prevents clamping and risks device failure. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance - required for engine control, ADAS, and body electronics. |
| 600 W peak pulse power (10/1000 µs) | Handles typical ISO 7637-2 Pulse 1/2a/5a transients without degradation; eliminates need for external series impedance in many designs. |
| Glass passivated junction | Ensures stable VBR tolerance and low leakage (<500 µA at VWM) across temperature and lifetime - critical for low-power sensor nodes. |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow profiles without preconditioning; reduces manufacturing complexity and cost. |
| UL 497B recognized (QVGQ2) | Meets safety requirements for telecom and industrial surge protectors; enables system-level certification without additional testing. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting analog sensor outputs (e.g., pressure, temperature) in engine control modules from load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional clamping diode placed between sensor output and microcontroller ADC input. Use Value: Limits voltage to ≤11.2 V during 53.6 A transients, preserving 12-bit ADC accuracy and preventing latch-up in 3.3 V or 5 V signal chains. |
Use Scenario: Shielding digital input channels on programmable logic controllers from field-wiring induced surges in factory automation. IC Role / Device Role / Timing Role: Standoff protection element mounted directly at terminal block entry point before optocoupler isolation stage. Use Value: Absorbs 600 W pulses without degradation, enabling >100,000 surge cycles per IEC 61000-4-5 Level 4 compliance. |
| Telecom Power Rail Protection | Consumer USB Port ESD Suppression |
|
Use Scenario: Safeguarding 5 V/12 V DC power inputs of VoIP gateways and base station backhaul units against lightning-induced surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main power rail upstream of DC-DC converters and LDOs. Use Value: Clamps to 11.2 V within <1 ns, limiting energy delivered to downstream regulators and avoiding brownout or reset events. |
Use Scenario: Secondary-level ESD protection on VBUS line of USB 2.0 ports in smart home hubs and set-top boxes. IC Role / Device Role / Timing Role: Fast-response shunt device placed after primary fuse and upstream of USB switch IC. Use Value: Withstands ±15 kV contact discharge (IEC 61000-4-2) while maintaining <1 µA leakage at 5 V - no impact on USB enumeration timing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.5A-E3/52 | Same VWM (6.5 V), but higher PPPM = 600 W and lower VC = 10.3 V at 58.3 A; uses DO-214AA (SMB) package with slightly larger footprint. | Preferred where tighter clamping and higher surge margin are needed; not drop-in due to different pad layout and thermal profile. | Select SMBJ6.5A-E3/52 if board space allows and lower clamping voltage is prioritized over AEC-Q101 qualification. |
| SMBG6.5HE3/52 | Identical electrical specs and DO-215AA package, but AEC-Q101 qualified and marked with HE3 suffix; same RoHS-compliant construction. | Direct functional replacement where automotive qualification is mandatory; differs only in traceability and test documentation. | Choose SMBG6.5HE3/52 when full AEC-Q101 compliance reporting and extended temperature validation are contractually required. |
Compared with SMBG6.5-E3/52, SMBJ6.5A-E3/52 offers superior clamping but requires PCB redesign, while SMBG6.5HE3/52 delivers identical performance with certified automotive qualification - making it the preferred upgrade path for Tier 1 supply chains.
Availability
SMBG6.5-E3/52 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC I/O hardening, and telecom power rail safeguarding requiring stable component supply across multi-year production programs.
Supply support for SMBG6.5-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 high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The SMBG series was engineered for surface-mount transient suppression in space-constrained, high-surge environments - emphasizing AEC-Q101 compliance, low-profile packaging, and repeatable clamping performance across temperature.
FAQ
What is the polarity configuration of SMBG6.5-E3/52?
The SMBG6.5-E3/52 is a unidirectional transient voltage suppressor diode, with the cathode identified by a single band on the package body. This polarity must be observed during PCB layout - connecting the banded end to the line being protected and the unmarked end to ground ensures proper clamping action during overvoltage events. Reversing polarity renders the SMBG6.5-E3/52 ineffective for surge suppression.
Does SMBG6.5-E3/52 meet AEC-Q101 requirements?
No - SMBG6.5-E3/52 is RoHS-compliant and commercial-grade, bearing the E3 suffix. For AEC-Q101 qualification, the correct part is SMBG6.5HE3/52, which shares identical electrical characteristics and DO-215AA packaging but undergoes extended stress testing per the AEC standard. The SMBG6.5-E3/52 datasheet explicitly lists AEC-Q101 qualification only for HE3-suffixed variants.
What is the maximum clamping voltage of SMBG6.5-E3/52 under surge conditions?
The SMBG6.5-E3/52 has a maximum clamping voltage (VC) of 11.2 V when subjected to its rated peak pulse current of 53.6 A using the 10/1000 µs waveform. This value is measured at TA = 25 °C on 5.0 mm × 5.0 mm copper pads and represents the upper voltage limit imposed on protected circuitry during worst-case transient events.
Can SMBG6.5-E3/52 be used in bi-directional applications?
No - SMBG6.5-E3/52 is strictly unidirectional. Bi-directional operation requires the CA-suffixed variant (e.g., SMBG6.5CA), which exhibits symmetrical breakdown in both polarities and lacks polarity marking. Using SMBG6.5-E3/52 in AC-coupled or bidirectional signal paths will result in forward conduction during negative half-cycles and potential device failure.
What is the thermal resistance of SMBG6.5-E3/52 in standard mounting conditions?
The SMBG6.5-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, as specified in the Vishay datasheet. This value assumes still air and defines the temperature rise above ambient per watt of steady-state power dissipation - relevant for evaluating long-term reliability under repetitive surge conditions.
SMBG6.5-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:
- 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-E3/52 FAQ
1.How can I place an order for SMBG6.5-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG6.5-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 SMBG6.5-E3/52 reliable?
The price and inventory of SMBG6.5-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 SMBG6.5-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBG6.5-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG6.5-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG6.5-E3/52?
SMBG6.5-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG6.5-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 SMBG6.5-E3/52?
For technical support, including SMBG6.5-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG6.5-E3/52 requirements.
6.How does Aetrix verify that SMBG6.5-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG6.5-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 SMBG6.5-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBG6.5-E3/52?
All SMBG6.5-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG6.5-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 SMBG6.5-E3/52 part is unused and in its original packaging.
Return procedure for SMBG6.5-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG6.5-E3/52 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 …
