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Vishay General Semiconductor - Diodes Division SMA6F90A-M3/I
- Part No.:
- SMA6F90A-M3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
SMA6F90A-M3/I.pdf
- Description:
- 600W,90V 5%,UNIDIR,SLIM SMA TVS
- Quantity:
- Payment:
- Shipping:
Inventory:8,625
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Product details
Overview
SMA6F90A-M3/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) in SlimSMA (DO-221AC) package, designed to protect sensitive electronics against voltage transients induced by inductive load switching and lightning surges. It features 90 V stand-off voltage (VWM), 100–111 V breakdown voltage (VBR), 146 V maximum clamping voltage at 8.54 A (10/1000 μs), 600 W peak pulse power (10/1000 μs), and IEC 61000-4-2 level 4 ESD immunity (15 kV air / 8 kV contact).
For engineers reviewing the SMA6F90A-M3/I datasheet, SMA6F90A-M3/I pinout, SMA6F90A-M3/I application, or SMA6F90A-M3/I equivalent, key selection criteria include clamping performance under 10/1000 μs surge, thermal derating on FR4 PCB, unidirectional polarity for DC rail protection, and M3 halogen-free RoHS-compliant construction suitable for automated SMT assembly.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR (100–111 V), it avalanches to limit transient energy across protected lines. Its low dynamic resistance (4.1 Ω typical) ensures tight clamping during 10/1000 μs pulses, while its 175 °C max junction temperature supports operation in industrial ambient environments.
The device uses a Zener-based avalanche structure with cathode band marking, optimized for fast response (<1 ns) and stable breakdown over temperature (voltage tempco αT = 10.7 × 10⁻⁴ /°C). It is rated for 2 oz. FR4 PCB mounting with RθJA = 150 °C/W and meets J-STD-020 MSL level 1 reflow profile (260 °C peak).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 90 V - maximum continuous reverse operating voltage before conduction begins |
| VBR min/max | 100 V / 111 V at 1 mA - guaranteed avalanche initiation range for reliable turn-on threshold |
| VC @ IPP | 146 V at 8.54 A (10/1000 μs) - clamping voltage limiting transient stress on downstream ICs |
| PPPM (10/1000 μs) | 600 W - surge energy handling capability for standard lightning/surge immunity testing |
| ID @ VWM | 0.2 μA max - negligible leakage current preserving signal integrity and power efficiency |
| ESD Rating | IEC 61000-4-2 level 4: 15 kV air / 8 kV contact - robust electrostatic discharge protection |
| Package | SlimSMA (DO-221AC), 0.95 mm height - ultra-low profile enabling high-density PCB layouts |
Pinout & Package
SlimSMA (DO-221AC) surface-mount package with cathode band marking; 2-terminal unidirectional configuration; matte tin-plated leads compliant with J-STD-002 and JESD22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry during forward conduction; grounded reference node in unidirectional TVS placement | Connected to system ground or low-impedance return path to sink surge current |
| Cathode | Protected line connection; voltage sensing node | Connected to I/O line, power rail, or signal trace requiring transient suppression |
Key Features
| Feature | Design Value |
|---|---|
| Very low profile | 0.95 mm typical height enables use in space-constrained consumer and portable electronics |
| Automated placement compatibility | DO-221AC footprint and matte tin terminations support high-yield pick-and-place assembly |
| High peak pulse power | 600 W (10/1000 μs) and 4 kW (8/20 μs) withstand capability for IEC 61000-4-5 compliance |
| Halogen-free & RoHS | M3 suffix confirms industrial-grade, halogen-free molding compound and lead finish |
| MSL Level 1 | Rated for reflow up to 260 °C peak without preconditioning - simplifies manufacturing flow |
Applications
| Industrial Motor Control | Automotive Body Electronics |
|---|---|
Use Scenario: Protection of microcontroller GPIOs and CAN transceiver power rails against inductive kickback from relay coils and solenoid drivers. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between 12 V supply and ground to clamp transients below IC absolute maximum ratings. Use Value: Prevents latch-up or permanent damage to automotive-grade MCUs during load dump or switch-off events. | Use Scenario: Safeguarding USB-C and HDMI interface lines in infotainment head units from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS mounted directly at connector entry point to suppress fast-rising ESD pulses before reaching PHY ICs. Use Value: Maintains signal integrity while meeting IEC 61000-4-2 level 4 (15 kV air) without degrading high-speed data eye diagrams. |
| Telecom Power Supplies | Consumer IoT Sensors |
Use Scenario: Input-stage protection of AC/DC adapters and PoE injectors against lightning-induced surges on primary-side DC bus lines. IC Role / Device Role / Timing Role: Primary-side TVS connected across bulk capacitor terminals to absorb 10/1000 μs surge energy before upstream rectifier or controller ICs. Use Value: Enables compliance with ITU-T K.20 and IEC 61000-4-5 level 3 (1 kV differential mode) without adding bulkier MOVs. | Use Scenario: Protecting battery management ICs and analog sensor front-ends in smart home devices exposed to user-handling ESD. IC Role / Device Role / Timing Role: Point-of-use TVS on VBAT and ADC input traces to limit transient voltage to ≤150 % of IC's absolute maximum rating. Use Value: Eliminates need for secondary protection stages, reducing BOM count and PCB area in compact wearable and sensor modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6F90A-M3/H | Same electrical specs; differs only in tape-and-reel packaging (3500 pcs/reel vs. 14000 pcs/reel) | No functional difference; selected based on production volume and feeder compatibility | Choose SMA6F90A-M3/H for pilot runs or low-volume SMT lines using 7" reels |
| SMA6F85A-M3/I | Lower VWM (85 V) and VBR (94.4–104 V); clamps at 136 V @ 7.27 A (10/1000 μs) | Better suited for 75–85 V nominal systems where tighter clamping margin is required | Select SMA6F85A-M3/I when protecting 80 V DC bus rails where 90 V VWM would risk premature conduction |
Compared with SMA6F90A-M3/I, SMA6F90A-M3/H offers identical protection performance but smaller reel quantity for flexibility, while SMA6F85A-M3/I provides lower clamping voltage at reduced standoff-making it preferable for 80 V systems but unsuitable as direct replacement in 90 V designs due to earlier turn-on.
Availability
SMA6F90A-M3/I is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, telecom power supplies, and consumer IoT sensors requiring stable component supply and long-term manufacturability.
Supply support for SMA6F90A-M3/I 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 SMA6FxxA series is part of Vishay's TRANSZORB® TVS platform, engineered for high-energy transient suppression in space-constrained, high-reliability applications across automotive, industrial, and communications infrastructure.
FAQ
What is the maximum clamping voltage of the SMA6F90A-M3/I under a 10/1000 μs surge?
The SMA6F90A-M3/I has a maximum clamping voltage (VC) of 146 V when subjected to an 8.54 A peak pulse current with a 10/1000 μs waveform. This value is measured per standard test conditions in the Vishay datasheet (Document Number: 89458) and defines the upper voltage limit imposed on protected circuitry during surge events.
Does the SMA6F90A-M3/I meet automotive qualification standards?
The SMA6F90A-M3/I is not AEC-Q200 qualified; it is an industrial-grade TVS diode rated for -55 °C to +175 °C operating junction temperature and compliant with J-STD-020 MSL level 1. For automotive applications, it may be used in non-safety-critical subsystems where customer validation confirms suitability, but it lacks formal automotive qualification documentation.
What is the thermal resistance of the SMA6F90A-M3/I when mounted on a standard FR4 PCB?
When mounted on a 2 oz. copper FR4 PCB with standard footprint, the SMA6F90A-M3/I exhibits a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W and a maximum of 150 °C/W. This value governs power derating above 25 °C ambient and is critical for calculating safe continuous power dissipation in real-world layouts.
Can the SMA6F90A-M3/I be used in bidirectional protection configurations?
No - the SMA6F90A-M3/I is strictly unidirectional, as confirmed by Vishay's datasheet and device marking (cathode band). Bidirectional protection requires either a dedicated bidirectional TVS (e.g., SMA6F90CA) or back-to-back unidirectional devices; substituting SMA6F90A-M3/I in bidirectional roles will result in forward conduction during negative transients.
What does the "M3/I" suffix indicate in SMA6F90A-M3/I?
The "M3" suffix denotes halogen-free, RoHS-compliant, industrial-grade construction with JESD201 class 2 whisker resistance; "I" specifies the preferred package code for 13-inch tape-and-reel delivery containing 14,000 units per reel - distinct from "H" (7-inch reel, 3500 units) but electrically identical.
SMA6F90A-M3/I 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):
- 90V
- Voltage - Breakdown (Min):
- 100V
- Voltage - Clamping (Max) @ Ipp:
- 146V
- Current - Peak Pulse (10/1000µs):
- 4.1A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-221AC (SlimSMA)
SMA6F90A-M3/I FAQ
1.How can I place an order for SMA6F90A-M3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6F90A-M3/I 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 SMA6F90A-M3/I reliable?
The price and inventory of SMA6F90A-M3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA6F90A-M3/I is usually 5 days.
3.What payment methods are accepted for SMA6F90A-M3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6F90A-M3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6F90A-M3/I?
SMA6F90A-M3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6F90A-M3/I 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 SMA6F90A-M3/I?
For technical support, including SMA6F90A-M3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6F90A-M3/I requirements.
6.How does Aetrix verify that SMA6F90A-M3/I is sourced from the original manufacturer or authorized distributors?
All SMA6F90A-M3/I 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 SMA6F90A-M3/I meets industry standards.
7.What is the process for return or replacement of SMA6F90A-M3/I?
All SMA6F90A-M3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMA6F90A-M3/I, 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 SMA6F90A-M3/I part is unused and in its original packaging.
Return procedure for SMA6F90A-M3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA6F90A-M3/I Tags
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