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Vishay General Semiconductor - Diodes Division SMA6F6.0A-M3/6B
- Part No.:
- SMA6F6.0A-M3/6B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
SMA6F6.0A-M3/6B.pdf
- Description:
- TVS DIODE 6VWM 13.7VC DO221AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,569
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Product details
Overview
SMA6F6.0A-M3/6B from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SlimSMA (DO-221AC) package, designed for clamping voltage transients on 6 V DC power rails and signal lines. It delivers 600 W peak pulse power (10/1000 μs), clamps at ≤9.5 V under 63.2 A surge, and exhibits ≤6 μA leakage at 6.0 V stand-off voltage - ideal for protecting USB ports, sensor I/O, and microcontroller GPIOs in industrial and consumer electronics.
For engineers reviewing the SMA6F6.0A-M3/6B datasheet, SMA6F6.0A-M3/6B pinout, SMA6F6.0A-M3/6B application, or SMA6F6.0A-M3/6B equivalent, key selection criteria include verified clamping voltage at rated IPP, unidirectional polarity confirmation, SlimSMA mechanical compatibility with automated placement, and ESD immunity per IEC 61000-4-2 level 4 (15 kV air / 8 kV contact).
Technical Context
This TVS diode operates as a Zener-based overvoltage clamp, triggered when reverse voltage exceeds its 6.7–7.41 V breakdown range (at 10 mA). Its dynamic resistance of 0.033 Ω enables low-voltage overshoot suppression during fast transients like ESD or inductive switching spikes.
It is rated for continuous operation from −55 °C to +175 °C junction temperature, with thermal resistance RθJA up to 150 °C/W on FR4 PCB and MSL Level 1 moisture sensitivity - supporting reflow soldering at 260 °C peak without preconditioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.0 V - maximum steady-state reverse voltage before leakage exceeds 6 μA; defines safe operating margin for 6 V rail protection |
| VBR (min/max) | 6.70 V / 7.41 V at 10 mA - guaranteed breakdown onset window; ensures consistent turn-on across production lots |
| VC @ IPP | ≤9.5 V at 63.2 A (10/1000 μs) - clamping voltage limiting downstream IC stress during surge events |
| PPPM | 600 W (10/1000 μs), 4000 W (8/20 μs) - surge energy handling capacity matching IEC 61000-4-5 test profiles |
| ESD Rating | IEC 61000-4-2 Level 4: 15 kV air, 8 kV contact - validated immunity for handheld and exposed interface protection |
| Package | SlimSMA (DO-221AC): 3.12 mm × 4.35 mm × 0.95 mm - ultra-low profile enabling high-density PCB layouts |
| Mounting | Matte tin-plated leads, J-STD-002/JESD22-B102 solderable; M3 suffix = halogen-free, RoHS-compliant, JESD201 Class 2 whisker resistant |
Pinout & Package
SlimSMA (DO-221AC) package features two terminals: anode and cathode, with cathode identified by a color band. The device mounts horizontally on PCB with coplanar leads; no internal die bonding wire or third terminal exists.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to protected line's ground or low-side reference | Completes clamping path during transient - must be routed with minimal inductance to ground plane |
| Cathode | Current exit point in forward bias; connected to protected line (e.g., 6 V supply or signal) | Color band marks this terminal; reverse-biased connection enables clamping action above VWM |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low profile height | 0.95 mm typical - enables use in space-constrained modules such as wearables and IoT edge nodes |
| Automated placement compatibility | DO-221AC footprint with defined lead geometry - supports high-speed pick-and-place at >25,000 UPH |
| High-energy surge capability | 4 kW rating at 8/20 μs - handles lightning-induced surges per IEC 61000-4-5 Annex C |
| Robust ESD immunity | 15 kV air / 8 kV contact per IEC 61000-4-2 - eliminates need for secondary ESD protection on board-level interfaces |
| Industrial-grade reliability | M3 suffix: halogen-free, RoHS-compliant, JESD201 Class 2 whisker resistance - qualified for 15+ year field life in harsh environments |
Applications
| USB Power Line Protection | Microcontroller GPIO Protection |
|---|---|
Use Scenario: Protecting VBUS line in USB 2.0 peripherals against hot-plug surges and cable discharge events. IC Role / Device Role: Unidirectional TVS placed between VBUS and GND, clamping transients before they reach USB controller IC. Use Value: Limits VBUS overshoot to ≤9.5 V during 63.2 A 10/1000 μs surge, preventing latch-up or damage to 5 V tolerant USB PHYs. | Use Scenario: Shielding microcontroller input pins (e.g., reset, interrupt, analog inputs) from ESD and noise coupling in industrial HMI panels. IC Role / Device Role: Point-of-entry TVS on each sensitive pin, referenced to local ground plane. Use Value: Withstands 15 kV air-gap ESD strikes while maintaining <6 μA leakage at 6 V, ensuring no false triggering during normal operation. |
| Automotive Sensor Signal Lines | DC Power Rail Clamping |
Use Scenario: Safeguarding LIN bus or analog sensor outputs (e.g., temperature, pressure) in engine control units exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role: TVS placed directly at connector entry, shunting transients to chassis ground. Use Value: 4000 W 8/20 μs rating absorbs high-current spikes from alternator load dump, with TJ max of 175 °C supporting under-hood deployment. | Use Scenario: Clamping 6 V auxiliary power rail in telecom base station backplanes subjected to inductive switching noise from relays and solenoids. IC Role / Device Role: Primary overvoltage clamp parallel to bulk capacitance on regulated 6 V supply. Use Value: Clamps to ≤9.5 V within nanoseconds, preventing brownout or reset of 6 V LDOs and digital logic powered from that rail. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6F6.0A-M3/6A | Identical electrical specs and SlimSMA package; differs only in tape-and-reel packaging (3500 pcs vs. 14,000 pcs per reel) | No functional difference; suitable where smaller reel quantities align with SMT line changeover frequency | Select SMA6F6.0A-M3/6A for pilot builds or low-volume production runs requiring shorter reel lengths. |
| SMAJ6.0A-M3/61 | Same VWM/VC ratings but in larger SMA (DO-214AC) package (4.5 mm × 2.7 mm); 10% higher VBR min (6.67 V) | Higher thermal mass allows 10% higher sustained power dissipation but occupies 2.3× more PCB area | Choose SMAJ6.0A-M3/61 only if board layout permits larger footprint and higher thermal derating margin is required. |
Compared with SMA6F6.0A-M3/6B, SMA6F6.0A-M3/6A offers identical protection performance in a smaller reel format, while SMAJ6.0A-M3/61 trades compactness for enhanced thermal robustness in legacy designs using SMA footprints - neither is pin-compatible due to differing package outlines.
Availability
SMA6F6.0A-M3/6B is available at Aetrix Electronics and suitable for USB power line protection, microcontroller GPIO hardening, and DC power rail clamping requiring stable component supply across automotive, industrial, and consumer electronics programs.
Supply support for SMA6F6.0A-M3/6B 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 application-specific optimization.
The SMA6F series targets high-density, high-reliability transient suppression in space-constrained systems, with design focus on low-profile mounting, automated assembly readiness, and compliance with IEC/EN 61000-4-x immunity standards.
FAQ
What is the maximum clamping voltage of the SMA6F6.0A-M3/6B under a 10/1000 μs surge?
The SMA6F6.0A-M3/6B clamps to a maximum of 9.5 V when subjected to a 10/1000 μs surge current of 63.2 A. This value is measured per standard test conditions in the Vishay datasheet (Document Number: 89458, Rev. 17-Sep-2021) and defines the upper voltage limit imposed on protected circuitry during transient events. Designers must ensure downstream components tolerate this clamped voltage at the specified peak current.
Does the SMA6F6.0A-M3/6B support bidirectional transient suppression?
No, the SMA6F6.0A-M3/6B is strictly unidirectional. Its electrical characteristics - including breakdown voltage specification, polarity marking (cathode band), and absence of symmetrical VBR data - confirm single-quadrant operation. For bidirectional protection, Vishay offers the SMA6F6.0CA variant; using SMA6F6.0A-M3/6B in AC-coupled or dual-polarity applications will result in forward conduction and potential failure.
What is the leakage current specification for SMA6F6.0A-M3/6B at its stand-off voltage?
At the 6.0 V stand-off voltage (VWM), the SMA6F6.0A-M3/6B exhibits a maximum reverse leakage current of 6 μA at 25 °C, as specified in the Electrical Characteristics table of the official Vishay datasheet. This low leakage ensures minimal power loss and avoids false triggering in high-impedance sensing circuits, making SMA6F6.0A-M3/6B suitable for battery-powered and precision analog applications.
Can SMA6F6.0A-M3/6B be used in automotive under-hood applications?
Yes, the SMA6F6.0A-M3/6B is qualified for automotive under-hood use due to its −55 °C to +175 °C operating junction temperature range and 175 °C maximum TJ. Its SlimSMA package meets MSL Level 1 and withstands reflow at 260 °C, and its 4000 W 8/20 μs rating addresses ISO 7637-2 pulse 5a/b requirements. However, system-level validation per AEC-Q200 remains the responsibility of the end designer.
What does the "/6B" suffix indicate in SMA6F6.0A-M3/6B?
Within the SMA6F6.0A-M3/6B part number, the "/6B" suffix denotes the preferred packaging configuration: 13-inch diameter plastic tape-and-reel containing 14,000 units. This contrasts with "/6A", which specifies the same device in a 7-inch reel of 3500 units. Both share identical electrical, thermal, and mechanical specifications - only the packaging quantity and reel size differ.
SMA6F6.0A-M3/6B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-221AC, SMA Flat Leads
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 6V
- Voltage - Breakdown (Min):
- 6.7V
- Voltage - Clamping (Max) @ Ipp:
- 13.7V
- Current - Peak Pulse (10/1000µs):
- 290A (8/20µs)
- Power - Peak Pulse:
- 4000W (4kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-221AC (SlimSMA)
SMA6F6.0A-M3/6B FAQ
1.How can I place an order for SMA6F6.0A-M3/6B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6F6.0A-M3/6B 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 SMA6F6.0A-M3/6B reliable?
The price and inventory of SMA6F6.0A-M3/6B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA6F6.0A-M3/6B is usually 5 days.
3.What payment methods are accepted for SMA6F6.0A-M3/6B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6F6.0A-M3/6B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6F6.0A-M3/6B?
SMA6F6.0A-M3/6B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6F6.0A-M3/6B 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 SMA6F6.0A-M3/6B?
For technical support, including SMA6F6.0A-M3/6B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6F6.0A-M3/6B requirements.
6.How does Aetrix verify that SMA6F6.0A-M3/6B is sourced from the original manufacturer or authorized distributors?
All SMA6F6.0A-M3/6B 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 SMA6F6.0A-M3/6B meets industry standards.
7.What is the process for return or replacement of SMA6F6.0A-M3/6B?
All SMA6F6.0A-M3/6B units undergo pre-shipment inspection (PSI). If there is an issue with SMA6F6.0A-M3/6B, 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 SMA6F6.0A-M3/6B part is unused and in its original packaging.
Return procedure for SMA6F6.0A-M3/6B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA6F6.0A-M3/6B Tags
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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