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Vishay General Semiconductor - Diodes Division SMA6F90A-M3/H
- Part No.:
- SMA6F90A-M3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
SMA6F90A-M3/H.pdf
- Description:
- 600W,90V 5%,UNIDIR,SLIM SMA TVS
- Quantity:
- Payment:
- Shipping:
Inventory:5,211
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Product details
Overview
SMA6F90A-M3/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) in SlimSMA (DO-221AC) package, designed for clamping voltage transients on power and signal lines. 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, and IEC 61000-4-2 Level 4 ESD protection (15 kV air / 8 kV contact).
For engineers reviewing the SMA6F90A-M3/H datasheet, SMA6F90A-M3/H pinout, SMA6F90A-M3/H application, or SMA6F90A-M3/H equivalent, key selection criteria include clamping performance at 90 V nominal system voltage, thermal derating on FR4 PCB, MSL Level 1 reflow compatibility, and SlimSMA footprint suitability for high-density consumer and industrial PCB layouts.
Technical Context
This TVS diode operates as a unidirectional Zener-based clamp, triggered when reverse voltage exceeds VBR (100–111 V at 1 mA). Its dynamic resistance (RD) is 4.1 Ω, enabling predictable clamping behavior per VCL = VBR(max) + IPP × RD. It is not bidirectional and lacks integrated steering or logic interface functions.
Designed for transient suppression only, it does not regulate DC voltage or provide overvoltage lockout. Thermal performance is characterized by RθJA = 120–150 °C/W (FR4, 2 oz.), with junction temperature rated from –55 °C to +175 °C and power dissipation limited to 1.0 W at 25 °C ambient.
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 - Confirmed breakdown threshold range for reliable triggering |
| VC @ IPPM (10/1000 μs) | 146 V at 8.54 A - Clamping voltage under standard surge condition; limits downstream stress |
| PPPM (10/1000 μs) | 600 W - Peak transient energy absorption capability without failure |
| ESD Rating | IEC 61000-4-2 Level 4: 15 kV air / 8 kV contact - Validated electrostatic discharge immunity |
| Package | SlimSMA (DO-221AC) - 0.95 mm profile, MSL Level 1, halogen-free, RoHS-compliant |
| TJ max | +175 °C - Maximum junction temperature for sustained operation in harsh environments |
Pinout & Package
SlimSMA (DO-221AC) is a two-terminal surface-mount package with cathode indicated by a color band. Total height is 0.95 mm typical; footprint optimized for automated placement and high-density routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current return path during clamping | Connected to circuit ground or low-impedance return; carries full surge current during event |
| Cathode | Protected line connection point | Connected to line being protected (e.g., 90 V rail); polarity-sensitive-reverse connection disables protection |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SlimSMA package | 0.95 mm height enables use in space-constrained consumer and telecom modules |
| MSL Level 1 rating | Compatible with standard lead-free reflow profiles up to 260 °C peak, no floor life limitation |
| High ESD robustness | Withstands 15 kV air and 8 kV contact discharge without parameter shift or failure |
| Stable temperature coefficient | αT = 10.7 × 10⁻⁴ /°C ensures predictable VBR drift across –55 °C to +125 °C operating range |
| Halogen-free & RoHS | M3 suffix confirms industrial-grade compliance with environmental and reliability standards |
Applications
| Industrial Motor Control | Automotive Body Electronics |
|---|---|
Use Scenario: Protection of 24 V–96 V DC bus lines against inductive switching spikes from solenoids, relays, and BLDC gate drivers. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed directly across bus rails to limit transient overvoltage to ≤146 V. Use Value: Prevents latch-up or permanent damage to MCU I/O, CAN transceivers, and power MOSFETs during load dump or coil de-energization. | Use Scenario: Surge suppression on LIN bus or sensor supply lines (e.g., ambient temperature, rain/light sensors) in cabin modules. IC Role / Device Role / Timing Role: Standoff-rated protector on 90 V-compatible sensor bias rails, activated only during ESD or load dump events. Use Value: Maintains signal integrity and avoids false triggers or resets caused by 8/20 μs surges up to 4 kW peak power. |
| Telecom Power Interfaces | Consumer AC-DC Adapter Outputs |
Use Scenario: Secondary-side transient protection on 48 V–90 V telecom power distribution boards exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Fast-response clamp on isolated DC output rails feeding PoE injectors or remote PHYs. Use Value: Limits clamping voltage to 146 V while absorbing 600 W (10/1000 μs), preserving downstream DC-DC converter input stage reliability. | Use Scenario: Output rail protection in universal-input AC-DC adapters delivering regulated 90 V DC for LED drivers or smart home hubs. IC Role / Device Role / Timing Role: Final-stage TVS on regulated output, placed after filtering to suppress residual switching noise and external surges. Use Value: Ensures end-product compliance with IEC 61000-4-5 (surge) and IEC 61000-4-2 (ESD) without requiring additional series impedance. |
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-M3/6B | Same electrical specs; differs only in tape-and-reel packaging code (6B vs. H) and base quantity (14,000 vs. 3500 units per reel) | No functional difference; identical SlimSMA (DO-221AC) package and thermal/mechanical behavior | Select based on volume procurement needs and assembly line reel size compatibility |
| SMAJ90A-M3/61 | Same VWM (90 V), but lower PPPM (400 W vs. 600 W), higher VC (156 V), and larger SMA (DO-214AC) package (2.4 mm height) | Less effective clamping margin and reduced surge handling; requires larger PCB area and different thermal layout | Choose SMA6F90A-M3/H when 600 W surge rating and 0.95 mm profile are required for compact, high-power designs |
Compared with SMA6F90A-M3/6B, the H-packaged SMA6F90A-M3/H offers smaller reel quantity for prototyping and quick-turn production; compared with SMAJ90A-M3/61, it delivers 50 % higher peak pulse power in half the height, enabling denser layouts without sacrificing clamping performance.
Availability
SMA6F90A-M3/H is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, telecom power interfaces, and consumer AC-DC adapter outputs requiring stable component supply, long-term lifecycle support, and MSL Level 1 reflow compatibility.
Supply support for SMA6F90A-M3/H 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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The SMA6FxxA family is engineered for high-energy transient suppression in space-constrained, high-reliability applications-targeting 90 V-class power rails in industrial automation, automotive subsystems, and infrastructure equipment where low-profile, high-PPPM, and robust ESD performance are critical.
FAQ
What is the clamping voltage of SMA6F90A-M3/H under a 10/1000 μs surge?
The SMA6F90A-M3/H has a maximum clamping voltage (VC) of 146 V at 8.54 A for a 10/1000 μs waveform. This value is measured per standard test conditions and defines the upper voltage limit imposed on protected circuits during surge events. The SMA6F90A-M3/H maintains this clamping performance across its specified operating temperature range and is validated per JEDEC test methods.
Is SMA6F90A-M3/H bidirectional or unidirectional?
The SMA6F90A-M3/H is strictly unidirectional. Its electrical characteristics-including breakdown voltage, clamping behavior, and polarity marking-are defined only for reverse-biased operation. The cathode band must be oriented toward the protected line; forward conduction is not rated or guaranteed. This makes SMA6F90A-M3/H unsuitable for AC line protection or bidirectional data line applications without external circuitry.
Does SMA6F90A-M3/H meet automotive qualification standards?
The SMA6F90A-M3/H is not AEC-Q200 qualified. While it operates from –55 °C to +175 °C and meets IEC 61000-4-2 Level 4 ESD, it lacks automotive-specific stress testing (e.g., temperature cycling, board-level vibration, or humidity bias). For automotive body electronics, system-level validation is required. SMA6F90A-M3/H is intended for industrial and commercial applications where extended temperature range and robust surge handling are needed.
What is the thermal resistance of SMA6F90A-M3/H on a standard FR4 PCB?
The typical junction-to-ambient thermal resistance (RθJA) of SMA6F90A-M3/H is 120–150 °C/W when mounted on an FR4 PCB with 2 oz. copper and standard footprint per JEDEC 51-2A. This value governs power derating above 25 °C ambient and must be used with the 1.0 W maximum power dissipation rating at TA = 25 °C to ensure safe operation. No heatsink is required for typical transient duty cycles.
Can SMA6F90A-M3/H replace SMAJ90A in existing designs?
SMA6F90A-M3/H is not a drop-in replacement for SMAJ90A due to package and performance differences: SMA6F90A-M3/H uses SlimSMA (DO-221AC, 0.95 mm height), while SMAJ90A uses SMA (DO-214AC, 2.4 mm height), requiring PCB land pattern revision. Additionally, SMA6F90A-M3/H offers higher PPPM (600 W vs. 400 W) and lower clamping voltage (146 V vs. 156 V). Redesign validation is required before substitution. The SMA6F90A-M3/H provides superior performance but demands layout adaptation.
SMA6F90A-M3/H 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/H FAQ
1.How can I place an order for SMA6F90A-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6F90A-M3/H 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/H reliable?
The price and inventory of SMA6F90A-M3/H 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/H is usually 5 days.
3.What payment methods are accepted for SMA6F90A-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6F90A-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6F90A-M3/H?
SMA6F90A-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6F90A-M3/H 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/H?
For technical support, including SMA6F90A-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6F90A-M3/H requirements.
6.How does Aetrix verify that SMA6F90A-M3/H is sourced from the original manufacturer or authorized distributors?
All SMA6F90A-M3/H 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/H meets industry standards.
7.What is the process for return or replacement of SMA6F90A-M3/H?
All SMA6F90A-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMA6F90A-M3/H, 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/H part is unused and in its original packaging.
Return procedure for SMA6F90A-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA6F90A-M3/H Tags
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