My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMA6F75A-M3/H
- Part No.:
- SMA6F75A-M3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
SMA6F75A-M3/H.pdf
- Description:
- 600W,75V 5%,UNIDIR,SLIM SMA TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,304
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMA6F75A-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 75 V stand-off voltage (VWM), 83.3–92.1 V breakdown voltage (VBR), 120 V maximum clamping voltage (VC) at 5.0 A (10/1000 μs), 600 W peak pulse power, and ESD immunity per IEC 61000-4-2 level 4 (15 kV air / 8 kV contact).
For engineers reviewing the SMA6F75A-M3/H datasheet, SMA6F75A-M3/H pinout, SMA6F75A-M3/H application, or SMA6F75A-M3/H equivalent, this device is selected for robust overvoltage protection in space-constrained consumer, industrial, and telecom systems where low-profile mounting, automated assembly, and high-energy surge handling are required.
Technical Context
This TVS diode operates as a unidirectional Zener-based clamp, activated when reverse voltage exceeds VBR. Its dynamic resistance (RD = 5.0 Ω) ensures predictable clamping behavior under transient stress, while its thermal resistance junction-to-ambient (RθJA = 120–150 °C/W) supports operation up to TJ = 175 °C on standard FR4 PCBs.
The device complies with MSL level 1 (J-STD-020), uses matte tin-plated leads solderable per J-STD-002/JESD22-B102, and meets UL 94 V-0 flammability. Its SlimSMA package enables 0.95 mm profile height and compatibility with high-speed pick-and-place equipment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 75 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 83.3 V / 92.1 V at 1.0 mA - Ensures reliable turn-on margin above VWM for stable protection threshold |
| VC @ IPP = 5.0 A | 120 V (10/1000 μs) - Clamping voltage seen by protected circuit during 5 A surge, limiting stress to downstream components |
| PPPM (10/1000 μs) | 600 W - Sustains 600 W transient energy without failure, suitable for common inductive-switching surges |
| ID @ VWM | 0.2 μA max - Ultra-low leakage preserves signal integrity and battery life in always-on circuits |
| TJ max. | 175 °C - Enables use in high-temperature industrial environments without derating concerns |
| ESD Rating | IEC 61000-4-2 level 4: 15 kV air / 8 kV contact - Protects against human-body-model electrostatic discharge events |
Pinout & Package
Package: SlimSMA (DO-221AC), 2-terminal surface-mount package with 0.95 mm typical height, cathode indicated by color band. Dimensions: 4.15 × 2.50 × 0.95 mm (L × W × H), compliant with JEDEC MO-290.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lower-potential rail; defines conduction path during reverse-biased transient |
| Cathode | High-side transient input terminal | Connected to protected line (e.g., USB VBUS, DC input); absorbs surge current into ground via anode |
Key Features
| Feature | Design Value |
|---|---|
| Very low profile | 0.95 mm height enables use in ultra-thin consumer devices and dense PCB layouts |
| Automated placement optimized | Matte tin-plated leads and SlimSMA geometry ensure >99.9% placement yield in high-speed SMT lines |
| High-energy clamping | 600 W (10/1000 μs) and 4 kW (8/20 μs) ratings protect against both slow inductive spikes and fast lightning-induced surges |
| Halogen-free & RoHS-compliant | M3 suffix confirms compliance with environmental standards and JESD201 class 2 whisker resistance |
| MSL level 1 rating | Reflow-compatible up to 260 °C peak without preconditioning, reducing manufacturing complexity |
Applications
| USB Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Safeguarding 5 V USB power rails in portable chargers and docking stations against hot-plug surges and load-dump transients. IC Role / Device Role: Unidirectional TVS placed between VBUS and GND to clamp overvoltage before it reaches USB controller ICs or charging management ICs. Use Value: Limits clamping voltage to 120 V at 5 A, preventing damage to 5 V-rated silicon while maintaining <0.2 μA leakage during normal operation. | Use Scenario: Protecting analog output lines (e.g., 4–20 mA or 0–10 V) of pressure/temperature sensors in factory automation PLC modules. IC Role / Device Role: TVS mounted directly at sensor connector interface to shunt ESD and switching noise induced by nearby relay coils or motor drives. Use Value: Withstands 15 kV air-gap ESD and clamps 8/20 μs lightning surges up to 4 kW, preserving signal accuracy and avoiding false triggers in analog front-ends. |
| Telecom DSL Line Interface | Consumer Audio Amplifier Power Supply |
Use Scenario: Shielding ADSL/VDSL line drivers and receivers from induced surges on twisted-pair telephone lines exposed to outdoor wiring. IC Role / Device Role: Bidirectional protection not applicable; SMA6F75A-M3/H used in unidirectional configuration on DC bias rails feeding line drivers. Use Value: 75 V VWM matches typical DSL line driver supply rails; 120 V VC ensures safe margin below 130 V absolute maximum ratings of driver ICs. | Use Scenario: Guarding 12–24 V DC power inputs of smart speakers and soundbars against power adapter transients and accidental reverse polarity. IC Role / Device Role: Primary overvoltage clamp on main DC input, placed upstream of DC-DC converters and audio amplifier ICs. Use Value: 600 W peak pulse capability handles repetitive inductive kickback from internal relays or fans; low 0.2 μA leakage avoids standby current penalties. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6F75A-M3/6B | Same electrical specs; differs only in tape-and-reel packaging (13" reel, 14,000 pcs vs. 7" reel, 3500 pcs) | No functional difference; identical performance and footprint | Select based on production volume and SMT line feeder compatibility |
| SMAJ75A-M3/61 | Higher RθJA (150 °C/W vs. 120–150 °C/W), same VWM/VBR/VC, but lower PPPM (400 W vs. 600 W) | Less robust for repeated high-energy surges; suitable only for lighter-duty applications | Choose SMA6F75A-M3/H when 600 W surge handling or tighter thermal budget is required |
Compared with SMA6F75A-M3/6B, the SMA6F75A-M3/H offers identical protection performance in a smaller 7" reel format ideal for low-to-mid volume builds; versus SMAJ75A-M3/61, it delivers +50 % peak pulse power and superior thermal resistance, making it preferred for industrial-grade surge resilience.
Availability
SMA6F75A-M3/H is available at Aetrix Electronics and suitable for USB power input protection, industrial sensor signal line protection, telecom DSL line interface, and consumer audio amplifier power supply requiring stable component supply across design-in, prototyping, and production phases.
Supply support for SMA6F75A-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, MOSFETs, and protection devices with emphasis on reliability, miniaturization, and application-specific performance.
The SMA6FxxA series is engineered for high-energy transient suppression in space-constrained surface-mount applications, targeting consumer electronics, industrial controls, and communications infrastructure where low-profile, high-surge-capability TVS diodes are critical.
FAQ
What is the maximum clamping voltage of the SMA6F75A-M3/H under a 10/1000 μs surge?
The SMA6F75A-M3/H has a maximum clamping voltage (VC) of 120 V when subjected to a 5.0 A peak pulse current with a 10/1000 μs waveform. This value is measured per the standard test condition specified in the Vishay datasheet (Document Number: 89458), and reflects the voltage seen across the device during surge conduction - a key parameter for ensuring downstream ICs remain within their absolute maximum ratings. The SMA6F75A-M3/H maintains this clamping performance consistently due to its specified dynamic resistance of 5.0 Ω.
Is the SMA6F75A-M3/H suitable for bidirectional transient protection?
No, the SMA6F75A-M3/H is a unidirectional TVS diode and is not rated for bidirectional operation. Its electrical characteristics - including breakdown voltage, clamping behavior, and polarity marking - are defined only for reverse-biased conduction (cathode positive relative to anode). For applications requiring protection against both positive and negative transients (e.g., AC lines or data buses), a dedicated bidirectional TVS such as SMBJ75CA must be used instead. The SMA6F75A-M3/H datasheet explicitly states "Unidirectional only" under FEATURES.
What does the "-M3/H" suffix indicate in SMA6F75A-M3/H?
The "-M3/H" suffix in SMA6F75A-M3/H denotes two specific attributes: "M3" indicates halogen-free, RoHS-compliant construction with JESD201 Class 2 whisker resistance, while "/H" specifies the tape-and-reel packaging variant using a 7-inch diameter reel containing 3500 units. This packaging code aligns with Vishay's ordering nomenclature in the datasheet's ORDERING INFORMATION table and distinguishes it from alternatives like /6B (13-inch reel, 14,000 pcs). The SMA6F75A-M3/H is fully compatible with standard SMT pick-and-place equipment calibrated for SlimSMA (DO-221AC) devices.
Can the SMA6F75A-M3/H be used in automotive applications?
The SMA6F75A-M3/H is not AEC-Q200 qualified and is not recommended for automotive powertrain or safety-critical systems. While it operates across –55 °C to +175 °C junction temperature and meets industrial reliability standards (MSL level 1, JESD201 Class 2), Vishay positions this device for consumer, industrial, and telecom applications - not automotive-grade use. For automotive applications requiring TVS protection, designers should select AEC-Q200-qualified parts such as the Automotive SMA6F75AHE3/73 or equivalent. Always verify qualification status directly in the official Vishay product documentation for SMA6F75A-M3/H before deployment in automotive contexts.
How does the thermal resistance of the SMA6F75A-M3/H affect its power dissipation capability?
The SMA6F75A-M3/H has a typical junction-to-ambient thermal resistance (RθJA) of 120–150 °C/W depending on PCB layout, which directly limits its steady-state power handling: at TA = 25 °C, its DC power dissipation is rated at 1.0 W, and derates to 8 W only at TM = 55 °C with proper heatsinking. However, its primary function is transient suppression - the 600 W peak pulse rating applies only for short-duration (≤1000 μs) events where thermal mass prevents immediate junction overheating. Therefore, RθJA governs long-term reliability under repetitive surges but does not constrain single-event clamping performance. Designers must ensure layout includes adequate copper area per Vishay's recommended mounting pad layout to maintain RθJA near 120 °C/W for optimal thermal performance of the SMA6F75A-M3/H.
SMA6F75A-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):
- 75V
- Voltage - Breakdown (Min):
- 83.3V
- Voltage - Clamping (Max) @ Ipp:
- 120V
- Current - Peak Pulse (10/1000µs):
- 5A
- 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)
SMA6F75A-M3/H FAQ
1.How can I place an order for SMA6F75A-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6F75A-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 SMA6F75A-M3/H reliable?
The price and inventory of SMA6F75A-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 SMA6F75A-M3/H is usually 5 days.
3.What payment methods are accepted for SMA6F75A-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6F75A-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6F75A-M3/H?
SMA6F75A-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6F75A-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 SMA6F75A-M3/H?
For technical support, including SMA6F75A-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6F75A-M3/H requirements.
6.How does Aetrix verify that SMA6F75A-M3/H is sourced from the original manufacturer or authorized distributors?
All SMA6F75A-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 SMA6F75A-M3/H meets industry standards.
7.What is the process for return or replacement of SMA6F75A-M3/H?
All SMA6F75A-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMA6F75A-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 SMA6F75A-M3/H part is unused and in its original packaging.
Return procedure for SMA6F75A-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA6F75A-M3/H 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 …
