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Vishay General Semiconductor - Diodes Division SMA6F54A-M3/I
- Part No.:
- SMA6F54A-M3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
SMA6F54A-M3/I.pdf
- Description:
- 600W,54V 5%,UNIDIR,SLIM SMA TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,407
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Product details
Overview
SMA6F54A-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 54 V stand-off voltage (VWM), 60.0–66.3 V breakdown voltage (VBR), 87.0 V maximum clamping voltage at 6.9 A (10/1000 μs), 600 W peak pulse power, and IEC 61000-4-2 Level 4 ESD immunity (15 kV air / 8 kV contact).
For engineers reviewing the SMA6F54A-M3/I datasheet, SMA6F54A-M3/I pinout, SMA6F54A-M3/I application, or SMA6F54A-M3/I equivalent, this device serves as a low-profile (0.95 mm height), RoHS-compliant, halogen-free transient protector for ICs, MOSFETs, and sensor signal lines in consumer, industrial, telecom, and computer systems - with validated thermal performance up to TJ = 175 °C and MSL Level 1 reflow compatibility.
Technical Context
This TVS diode operates in unidirectional configuration with a Zener-based avalanche clamping mechanism. Its electrical behavior is defined by precise VBR (60.0–66.3 V at IT = 1 mA), VWM (54 V), and VC (87.0 V at IPP = 6.9 A, 10/1000 μs), enabling reliable overvoltage protection without forward conduction during normal operation.
Thermal design is supported by RθJA = 120–150 °C/W (FR4 PCB, 2 oz. copper) and RθJM = 12–15 °C/W, allowing stable operation under repetitive surge conditions. The device meets JESD201 Class 2 whisker resistance and JEDEC J-STD-020 MSL Level 1, supporting lead-free reflow up to 260 °C peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 54 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 60.0 V / 66.3 V at 1 mA - Ensures predictable avalanche initiation across temperature and unit variation |
| VC @ IPP | 87.0 V at 6.9 A (10/1000 μs) - Limits downstream voltage stress during standard surge events |
| PPPM (10×1000 μs) | 600 W - Sustains high-energy transients typical of inductive switch-off in power supplies and motor drivers |
| ESD rating | IEC 61000-4-2 Level 4: 15 kV air / 8 kV contact - Protects interfaces exposed to human handling |
| TJ max | 175 °C - Enables use in high-ambient environments such as industrial enclosures and automotive under-hood zones |
| Package | SlimSMA (DO-221AC) - 0.95 mm profile supports ultra-thin PCB assemblies and automated placement |
Pinout & Package
SlimSMA (DO-221AC) surface-mount package with cathode band marking on top surface; matte tin-plated leads compliant with J-STD-002 and JESD22-B102 solderability standards; M3 suffix denotes halogen-free, RoHS-compliant, industrial-grade construction meeting JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during clamping | Connected to protected line (e.g., signal or power rail); conducts surge current to ground when V > VBR |
| Cathode | Current exit terminal during clamping | Connected to system ground; polarity marked by visible band; defines unidirectional clamping direction |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile height | 0.95 mm - Enables integration into space-constrained portable and wearable electronics |
| High surge capability | 4 kW (8/20 μs) - Handles fast, high-amplitude lightning-induced transients in telecom and industrial field wiring |
| ESD robustness | 15 kV air / 8 kV contact per IEC 61000-4-2 Level 4 - Eliminates need for additional ESD protection on front-end interfaces |
| Thermal reliability | MSL Level 1, 260 °C peak reflow - Supports single-pass lead-free assembly without moisture sensitivity concerns |
| Material compliance | Halogen-free, RoHS-compliant, UL 94 V-0 molding compound - Meets environmental and safety requirements for global deployments |
Applications
| Industrial Motor Control | Automotive Sensor Interface |
|---|---|
Use Scenario: Protection of gate drivers and microcontroller I/O pins against back-EMF spikes from brushed DC motors and solenoids. IC Role / Device Role / Timing Role: Unidirectional TVS placed between motor driver output and ground to clamp inductive kickback within safe voltage margins. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V logic inputs while maintaining <100 ns response time and 87.0 V clamping ceiling. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and load-dump transients in 12 V vehicle subsystems. IC Role / Device Role / Timing Role: Standoff-rated protector on sensor signal line, grounded at ECU end, absorbing contact discharge before reaching ADC input. Use Value: Maintains signal integrity under 8 kV contact ESD per IEC 61000-4-2 while operating reliably from -55 °C to +175 °C junction temperature. |
| Telecom Power Input | Consumer USB Port Protection |
Use Scenario: Secondary-level surge suppression on 48 V DC power feeds entering base station equipment exposed to outdoor lightning coupling. IC Role / Device Role / Timing Role: Parallel-connected TVS shunting 4 kW (8/20 μs) surges to chassis ground upstream of DC-DC converters. Use Value: Limits transient voltage to ≤87.0 V, preventing overvoltage failure of downstream POL regulators rated for 60 V input max. | Use Scenario: Reverse-polarity and ESD protection on VBUS line of USB Type-A ports in smart speakers and docking stations. IC Role / Device Role / Timing Role: Unidirectional clamp referenced to system ground, blocking reverse current while clamping ESD above 54 V. Use Value: Survives 15 kV air-gap ESD events without degradation and maintains <1 μA leakage at 54 V, preserving battery life in always-on devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6F54A-M3/H | Same electrical specs; differs only in tape-and-reel packaging (3500 pcs/reel vs. 14000 pcs/reel) and package code "H" instead of "I" | Identical functional use; selected for smaller batch production or prototyping where lower reel quantity is preferred | Choose SMA6F54A-M3/H for lab evaluation or low-volume builds requiring 7" tape; SMA6F54A-M3/I is optimized for high-volume SMT line feeding |
| SMAJ54A-M3/5B | Higher RθJA (150 °C/W vs. 120–150 °C/W), same VWM/VBR/VC, but larger SMA (DO-214AC) package (2.4 mm height) | Less suitable for ultra-thin designs; offers higher thermal mass but requires more board area | Select SMAJ54A-M3/5B only when board height >2.4 mm is acceptable and higher single-pulse energy margin is needed beyond 600 W |
Compared with SMA6F54A-M3/H, the SMA6F54A-M3/I enables higher throughput via 13" reels, while SMAJ54A-M3/5B trades slim profile for greater thermal inertia - making SMA6F54A-M3/I optimal for space-constrained, high-volume industrial and telecom PCBs requiring MSL Level 1 compliance and 0.95 mm z-height.
Availability
SMA6F54A-M3/I is available at Aetrix Electronics and suitable for industrial motor control, automotive sensor interface, and telecom power input applications requiring stable component supply, long-term lifecycle support, and consistent MSL Level 1 reflow compatibility.
Supply support for SMA6F54A-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, TVS, MOSFETs, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The SMA6F series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-energy transient suppression in compact surface-mount formats - targeting cost-sensitive, high-volume protection needs in consumer, industrial, and communications infrastructure.
FAQ
What is the maximum clamping voltage of the SMA6F54A-M3/I under a 10/1000 μs surge?
The SMA6F54A-M3/I has a maximum clamping voltage (VC) of 87.0 V when subjected to a 10/1000 μs surge waveform at 6.9 A peak pulse current. This value is measured per standard test conditions (TA = 25 °C) and ensures downstream circuitry remains below critical overvoltage thresholds during transient events. The SMA6F54A-M3/I maintains this clamping performance across its specified operating temperature range.
Does the SMA6F54A-M3/I support lead-free reflow soldering?
Yes, the SMA6F54A-M3/I meets J-STD-020 MSL Level 1 and is qualified for lead-free reflow with a maximum peak temperature of 260 °C. Its SlimSMA (DO-221AC) package uses matte tin-plated terminals that comply with J-STD-002 and JESD22-B102 solderability standards. The SMA6F54A-M3/I also passes JESD201 Class 2 whisker testing, ensuring long-term interconnect reliability after assembly.
How does the SMA6F54A-M3/I differ from the SMAJ54A-M3/5B in terms of physical design?
The SMA6F54A-M3/I uses the SlimSMA (DO-221AC) package with a height of 0.95 mm, whereas the SMAJ54A-M3/5B uses the standard SMA (DO-214AC) package at 2.4 mm height. Both share identical electrical ratings (VWM = 54 V, VBR = 60.0–66.3 V, VC = 87.0 V), but the SMA6F54A-M3/I enables ultra-low-profile PCB layouts unsuitable for the taller SMAJ variant. The SMA6F54A-M3/I is not a drop-in replacement due to different footprint and thermal resistance values.
What is the ESD rating of the SMA6F54A-M3/I and how is it verified?
The SMA6F54A-M3/I is rated per IEC 61000-4-2 Level 4: 15 kV for air discharge and 8 kV for contact discharge. This rating is verified through standardized testing per the specification and documented in Vishay's official datasheet (Document Number: 89458). The SMA6F54A-M3/I achieves this performance using its optimized silicon junction and package construction, with no external components required to meet Level 4 compliance.
Can the SMA6F54A-M3/I be used in bidirectional protection configurations?
No, the SMA6F54A-M3/I is a unidirectional TVS diode and is not suitable for bidirectional protection. Its internal structure supports clamping only for positive transients relative to ground (anode-to-ground configuration). For bidirectional applications - such as AC lines or differential data buses - a dedicated bidirectional TVS like the SMBJ54CA or an external series diode pair would be required. Using SMA6F54A-M3/I in reverse-biased mode risks permanent breakdown.
SMA6F54A-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):
- 54V
- Voltage - Breakdown (Min):
- 60V
- Voltage - Clamping (Max) @ Ipp:
- 87V
- Current - Peak Pulse (10/1000µs):
- 6.9A
- 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)
SMA6F54A-M3/I FAQ
1.How can I place an order for SMA6F54A-M3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6F54A-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 SMA6F54A-M3/I reliable?
The price and inventory of SMA6F54A-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 SMA6F54A-M3/I is usually 5 days.
3.What payment methods are accepted for SMA6F54A-M3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6F54A-M3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6F54A-M3/I?
SMA6F54A-M3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6F54A-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 SMA6F54A-M3/I?
For technical support, including SMA6F54A-M3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6F54A-M3/I requirements.
6.How does Aetrix verify that SMA6F54A-M3/I is sourced from the original manufacturer or authorized distributors?
All SMA6F54A-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 SMA6F54A-M3/I meets industry standards.
7.What is the process for return or replacement of SMA6F54A-M3/I?
All SMA6F54A-M3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMA6F54A-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 SMA6F54A-M3/I part is unused and in its original packaging.
Return procedure for SMA6F54A-M3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA6F54A-M3/I Tags
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