My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMA6F17A-M3/6A
- Part No.:
- SMA6F17A-M3/6A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
SMA6F17A-M3/6A.pdf
- Description:
- TVS DIODE 17VWM 31.4VC DO221AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,980
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMA6F17A-M3/6A 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 power and signal lines. It features a 17 V stand-off voltage (VWM), 18.9–20.9 V breakdown voltage (VBR) at 1 mA, 26.7 V maximum clamping voltage (VC) at 10/1000 μs 17.4 A peak pulse current, and 600 W peak pulse power rating.
For engineers reviewing the SMA6F17A-M3/6A datasheet, SMA6F17A-M3/6A pinout, SMA6F17A-M3/6A application, or SMA6F17A-M3/6A equivalent, this device is selected for robust ESD and surge protection in space-constrained consumer, industrial, and telecom systems where low-profile mounting and IEC 61000-4-2 Level 4 compliance (15 kV air / 8 kV contact) are required.
Technical Context
This TVS diode operates as a unidirectional Zener-clamped transient suppressor, leveraging avalanche breakdown to limit overvoltage events. Its electrical behavior is defined by precise VBR tolerance (±5%), low dynamic resistance (0.259 Ω), and predictable temperature coefficient (9.0 × 10⁻⁴ /°C), enabling stable clamping across -55 °C to +175 °C junction temperature range.
The device uses a planar junction structure in a halogen-free, RoHS-compliant SlimSMA package with matte tin-plated leads. It meets J-STD-020 MSL Level 1 and JESD201 Class 2 whisker resistance, supporting reflow soldering up to 260 °C peak and automated placement in high-volume PCB assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 17 V - Maximum continuous reverse operating voltage before leakage exceeds 0.2 μA; sets safe operating margin below clamping threshold. |
| VBR (min/max) | 18.9 V / 20.9 V at 1 mA - Confirmed breakdown range ensures reliable turn-on during transients without premature conduction. |
| VC @ IPPM (10/1000 μs) | 26.7 V at 17.4 A - Clamping voltage under standard surge waveform; limits downstream IC stress to safe levels. |
| PPPM (10/1000 μs) | 600 W - Peak pulse power handling capacity; determines survivability against common lightning-induced surges. |
| ID @ VWM | 0.2 μA max - Ultra-low reverse leakage preserves signal integrity and battery life in always-on circuits. |
| TJ max. | +175 °C - Enables operation in high-temperature environments such as automotive engine compartments or industrial motor drives. |
| ESD Rating | IEC 61000-4-2 Level 4: 15 kV air / 8 kV contact - Validates robustness against human-body-model electrostatic discharge events. |
Pinout & Package
Package: SlimSMA (DO-221AC), ultra-low profile (0.95 mm typical height), halogen-free, RoHS-compliant, matte tin-plated leads. Cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to protected line's lower-potential side (e.g., GND or return path); defines unidirectional clamping direction. |
| Cathode | Current exit terminal during reverse-biased clamping | Connected to protected line's higher-potential side (e.g., VBUS or signal line); conducts surge current to ground when V > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Very low profile (0.95 mm) | Enables use in ultra-thin consumer electronics and dense PCB layouts where height clearance is constrained to <1.0 mm. |
| Peak pulse power: 600 W (10/1000 μs) | Provides proven immunity against IEC 61000-4-5 surge waveforms in industrial control and power supply input stages. |
| ESD capability: IEC 61000-4-2 Level 4 | Guarantees protection against real-world electrostatic discharges encountered during handling and field operation. |
| MSL Level 1, 260 °C peak reflow | Supports single-pass lead-free reflow assembly without moisture-related popcorn failure or delamination. |
| Unidirectional configuration | Optimized for DC-biased lines (e.g., USB VBUS, 12 V rails) where reverse polarity protection is not required. |
Applications
| USB Power Line Protection | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Protecting 5 V USB VBUS lines from hot-plug transients and ESD events in portable docking stations. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between VBUS and GND, conducting only during overvoltage excursions above 17 V. Use Value: Limits clamping voltage to 26.7 V, preventing damage to USB controller ICs rated for ≤30 V absolute maximum ratings. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loop) of pressure sensors exposed to inductive switching noise in factory automation. IC Role / Device Role / Timing Role: Fast-response transient suppressor mounted at sensor connector interface, shunting surge energy before reaching precision DAC or op-amp circuitry. Use Value: Sub-1 ns response time and 0.259 Ω dynamic resistance ensure minimal overshoot and accurate signal fidelity under 1 kV/μs transients. |
| Telecom DSL Line Interface | Automotive Body Control Module (BCM) Inputs |
Use Scenario: Shielding ADSL/VDSL line drivers from lightning-induced surges entering via outdoor copper pairs. IC Role / Device Role / Timing Role: Primary front-end TVS in hybrid coupler stage, absorbing 4 kW (8/20 μs) surges before they reach transformer-coupled PHY ICs. Use Value: 4000 W peak pulse power rating enables compliance with ITU-T K.21 basic protection level for telecom infrastructure. |
Use Scenario: Protecting 12 V switch inputs (e.g., door lock actuator signals) from load dump and alternator ripple in vehicle body electronics. IC Role / Device Role / Timing Role: Standoff-rated TVS placed directly at connector pin, clamping transients before reaching microcontroller GPIO pins. Use Value: 175 °C max junction temperature and -55 °C min operating range support full automotive temperature grade requirements without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6F17AHE3/61 | Same VWM (17 V), identical SlimSMA package, but with "HE3" suffix indicating different tape/reel packaging (7" reel, 3500 pcs) and no M3 halogen-free designation. | Not qualified to JESD201 Class 2 whisker test; unsuitable for high-reliability aerospace or medical applications requiring whisker resistance. | Select SMA6F17A-M3/6A when halogen-free, RoHS-compliant, and whisker-resistant construction is mandatory for industrial or automotive production. |
| SMC6F17A-M3/61 | Same electrical specs (VWM = 17 V, VBR = 18.9–20.9 V), but in larger SMC (DO-214AB) package (2.59 mm height), 1500 W PPPM (10/1000 μs). | Higher power handling but incompatible footprint; requires PCB redesign and sacrifices board space efficiency. | Choose SMA6F17A-M3/6A when board height <1.0 mm and automated placement compatibility are critical; choose SMC6F17A-M3/61 only if 1500 W surge rating is required and height is not constrained. |
Compared with SMA6F17AHE3/61, SMA6F17A-M3/6A adds halogen-free and whisker-resistant qualification; compared with SMC6F17A-M3/61, it trades 2.5× lower surge power for 63% height reduction and direct SlimSMA footprint compatibility-making it optimal for modern compact electronics where space and reliability are co-prioritized.
Availability
SMA6F17A-M3/6A is available at Aetrix Electronics and suitable for USB power line protection, industrial sensor interfaces, telecom DSL line conditioning, and automotive BCM inputs requiring stable component supply, consistent M3-grade material compliance, and verified SlimSMA packaging.
Supply support for SMA6F17A-M3/6A 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, thermal performance, and application-specific optimization.
The SMA6FxxA series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-density, low-profile transient suppression in consumer, industrial, and telecom equipment where board space and assembly compatibility are critical constraints.
FAQ
What is the maximum clamping voltage of the SMA6F17A-M3/6A under a 10/1000 μs surge?
The SMA6F17A-M3/6A has a maximum clamping voltage (VC) of 26.7 V when subjected to a 10/1000 μs waveform at its rated peak pulse current of 17.4 A. This value is measured per standard test conditions in the Vishay datasheet (Document Number: 89458, Rev. 17-Sep-2021) and reflects worst-case voltage seen by downstream circuitry during surge events. The SMA6F17A-M3/6A maintains this clamping performance across its specified operating temperature range.
Does the SMA6F17A-M3/6A meet automotive AEC-Q200 requirements?
No, the SMA6F17A-M3/6A is not AEC-Q200 qualified. It is rated for industrial and commercial applications with an operating junction temperature range of -55 °C to +175 °C, but Vishay does not list AEC-Q200 stress test certification for this specific variant in its official documentation. For automotive-grade transient suppression, engineers should select Vishay's AEC-Q200-qualified alternatives such as the AUTOMOTIVE SMA6F17A-M3/AE3 or equivalent qualified variants. The SMA6F17A-M3/6A remains suitable for non-safety-critical automotive subsystems where qualification is not mandated.
What is the meaning of the "M3/6A" suffix in SMA6F17A-M3/6A?
The "M3" suffix indicates halogen-free, RoHS-compliant, industrial-grade construction with matte tin-plated leads meeting J-STD-002 and JESD22-B102 solderability standards, plus JESD201 Class 2 whisker resistance. The "6A" denotes the preferred package code for SMA6F5.0A through SMA6F20A devices, specifying a 7-inch diameter plastic tape-and-reel delivery format containing 3500 units per reel. This coding ensures correct material compliance and logistics handling for the SMA6F17A-M3/6A.
Can the SMA6F17A-M3/6A be used in bidirectional signal line protection?
No, the SMA6F17A-M3/6A is strictly unidirectional and must not be used on AC-coupled or bidirectional signal lines such as RS-485 or CAN bus without external circuitry. Its cathode-anode polarity is fixed, and it conducts only when the cathode is at a higher potential than the anode. For bidirectional protection, engineers must use a dedicated bidirectional TVS like the SMA6F17CA-M3/6A or implement back-to-back unidirectional devices. Using SMA6F17A-M3/6A on bidirectional lines risks permanent failure or inadequate clamping.
What is the thermal resistance junction-to-ambient (RθJA) for the SMA6F17A-M3/6A on a standard FR4 PCB?
The SMA6F17A-M3/6A has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on a standard FR4 PCB with 2 oz. copper and the recommended pad layout per Vishay's DO-221AC footprint guidelines. This value assumes natural convection cooling and is critical for calculating steady-state power dissipation limits-e.g., at 25 °C ambient, the device can safely dissipate 1.0 W continuously (PD = (TJmax − TA)/RθJA = (175 − 25)/120 ≈ 1.25 W, derated to 1.0 W per datasheet). The SMA6F17A-M3/6A's RθJA increases significantly with smaller copper areas or no thermal relief.
SMA6F17A-M3/6A 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):
- 17V
- Voltage - Breakdown (Min):
- 18.9V
- Voltage - Clamping (Max) @ Ipp:
- 31.4V
- Current - Peak Pulse (10/1000µs):
- 111A (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)
SMA6F17A-M3/6A FAQ
1.How can I place an order for SMA6F17A-M3/6A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6F17A-M3/6A 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 SMA6F17A-M3/6A reliable?
The price and inventory of SMA6F17A-M3/6A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA6F17A-M3/6A is usually 5 days.
3.What payment methods are accepted for SMA6F17A-M3/6A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6F17A-M3/6A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6F17A-M3/6A?
SMA6F17A-M3/6A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6F17A-M3/6A 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 SMA6F17A-M3/6A?
For technical support, including SMA6F17A-M3/6A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6F17A-M3/6A requirements.
6.How does Aetrix verify that SMA6F17A-M3/6A is sourced from the original manufacturer or authorized distributors?
All SMA6F17A-M3/6A 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 SMA6F17A-M3/6A meets industry standards.
7.What is the process for return or replacement of SMA6F17A-M3/6A?
All SMA6F17A-M3/6A units undergo pre-shipment inspection (PSI). If there is an issue with SMA6F17A-M3/6A, 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 SMA6F17A-M3/6A part is unused and in its original packaging.
Return procedure for SMA6F17A-M3/6A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA6F17A-M3/6A 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 …
