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Vishay General Semiconductor - Diodes Division SMA6F54A-M3/H
- Part No.:
- SMA6F54A-M3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
SMA6F54A-M3/H.pdf
- Description:
- 600W,54V 5%,UNIDIR,SLIM SMA TVS
- Quantity:
- Payment:
- Shipping:
Inventory:4,266
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Product details
Overview
SMA6F54A-M3/H 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 a 54 V stand-off voltage (VWM), 60.0–66.3 V breakdown voltage (VBR), 87.0 V maximum clamping voltage (VC) 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/H datasheet, SMA6F54A-M3/H pinout, SMA6F54A-M3/H application, or SMA6F54A-M3/H equivalent, this page delivers verified electrical specs, thermal derating behavior, JEDEC-compliant MSL level 1 handling, halogen-free RoHS-compliant construction, and real-world clamping performance for robust circuit protection design.
Technical Context
This TVS diode operates as a unidirectional Zener-clamped surge protector with fast response to transient overvoltages. Its clamping action relies on avalanche breakdown above VBR, delivering predictable VC under standardized 10/1000 μs and 8/20 μs waveforms, with dynamic resistance (RD) of 3.00 Ω enabling low-voltage overshoot during high-current surges.
Thermal performance is defined by RθJA = 120–150 °C/W (FR4 PCB, 2 oz. copper) and RθJM = 12–15 °C/W, supporting operation up to TJ = 175 °C. The device meets JESD201 class 2 whisker resistance and is rated for infinite heatsink power dissipation of 8 W at TM = 55 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 54 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR (min/max) | 60.0 V / 66.3 V - Breakdown threshold range at 1 mA test current; defines turn-on consistency |
| VC @ IPPM (10/1000 μs) | 87.0 V at 6.9 A - Clamped voltage during 600 W surge; determines protected IC's voltage stress limit |
| PPPM (10/1000 μs) | 600 W - Peak surge energy handling capability per standard waveform; sets protection margin |
| ID @ VWM | 0.2 μA max - Reverse leakage at stand-off voltage; ensures minimal standby power loss |
| TJ max. | 175 °C - Maximum junction temperature; enables use in high-ambient industrial environments |
| ESD Rating | IEC 61000-4-2 level 4: 15 kV air / 8 kV contact - Confirmed system-level electrostatic discharge resilience |
| MSL Level | Level 1 per J-STD-020 - No floor life limitation; supports standard SMT reflow without dry pack |
Pinout & Package
Package: SlimSMA (DO-221AC), ultra-low-profile surface-mount case with 0.95 mm typical height, matte tin-plated leads, cathode indicated by color band, UL 94 V-0 molding compound, halogen-free and RoHS-compliant (M3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to protected line's lower-potential side (e.g., GND or return path) in unidirectional configuration |
| Cathode | Current exit point during reverse clamping | Connected to protected line's higher-potential side (e.g., signal or supply rail); marked by color band |
Key Features
| Feature | Design Value |
|---|---|
| Clamping voltage control | VC = 87.0 V at 6.9 A (10/1000 μs) enables precise overvoltage limiting for 54 V systems |
| Low-profile mounting | 0.95 mm typical height allows placement in space-constrained consumer and telecom PCBs |
| Automated assembly compatibility | SlimeSMA footprint and matte tin plating ensure reliable pick-and-place and solder wetting per J-STD-002 |
| High-energy surge handling | 4 kW peak pulse power (8/20 μs) protects against lightning-induced transients in industrial interfaces |
| Reliable long-term stability | JESD201 class 2 whisker resistance and MSL level 1 rating support high-yield manufacturing and field reliability |
Applications
| Industrial Motor Control | Automotive Body Electronics |
|---|---|
Use Scenario: Protection of gate drivers and microcontroller I/O lines from inductive kickback in 48 V motor drive circuits. IC Role / Device Role / Timing Role: Unidirectional TVS placed across MOSFET gate-source or between MCU GPIO and external sensor harness. Use Value: Limits transient voltage to ≤87.0 V during 6.9 A surges, preventing latch-up or oxide damage in 54 V-rated control ICs. | Use Scenario: Shielding LIN bus transceivers and door module sensors from battery dump and load-dump events. IC Role / Device Role / Timing Role: Standoff-rated TVS on LIN data line and VBAT-supply input to absorb 8/20 μs transients up to 4 kW. Use Value: Maintains 54 V VWM compatibility with 12 V/48 V dual-battery architectures while meeting ISO 16750-2 pulse 5a requirements. |
| Telecom Power Interface | Consumer USB-C PD Port |
Use Scenario: Safeguarding PoE-powered Ethernet PHYs and DC-DC controllers from AC-line coupled surges. IC Role / Device Role / Timing Role: Primary clamping device on 48 V PSE output rail and secondary-side 54 V bias rails. Use Value: Delivers 600 W (10/1000 μs) clamping with <0.2 μA leakage, preserving efficiency and signal integrity in always-on equipment. | Use Scenario: Overvoltage suppression on USB-C VBUS lines during hot-plug events and adapter fault conditions. IC Role / Device Role / Timing Role: Unidirectional TVS between VBUS and GND, selected for 54 V standoff to accommodate 20 V PD3.1 extended power range. Use Value: Clamps to 87.0 V within nanoseconds, protecting USB-C controller ICs rated for ≤100 V absolute maximum ratings. |
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-M3/6B | Same electrical specs; differs only in tape-and-reel packaging (14,000 pcs/reel vs. 3500 pcs/reel) and package code "6B" instead of "H" | No functional difference; identical SlimSMA (DO-221AC) mechanical and electrical performance | Select SMA6F54A-M3/6B for high-volume automated production requiring larger reels |
| SMA6F58A-M3/H | Higher VWM (58 V), VBR (64.4–71.2 V), and VC (93.8 V at 6.4 A); same package and thermal specs | Better suited for 58 V nominal systems (e.g., certain 48 V industrial buses with tighter tolerance margins) | Choose SMA6F58A-M3/H only if system VWM exceeds 54 V; not a drop-in replacement due to higher clamping voltage |
Compared with SMA6F54A-M3/H, SMA6F54A-M3/6B offers identical protection performance in a different reel format, while SMA6F58A-M3/H provides higher voltage headroom at the cost of elevated clamping-requiring careful validation against downstream IC absolute maximum ratings.
Availability
SMA6F54A-M3/H is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, telecom power interface, and consumer USB-C PD port designs requiring stable component supply, consistent M3-grade halogen-free compliance, and verified surge immunity.
Supply support for SMA6F54A-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, precision, and application-specific optimization.
The SMA6F series is engineered for high-energy transient suppression in compact surface-mount form factors, targeting automotive, industrial, and communications systems where low profile, high clamping accuracy, and JEDEC-compliant manufacturability are critical.
FAQ
What is the maximum clamping voltage of the SMA6F54A-M3/H under a 10/1000 μs surge?
The SMA6F54A-M3/H has a maximum clamping voltage (VC) of 87.0 V when subjected to a 6.9 A peak pulse current with a 10/1000 μs waveform. This value is measured per standard test conditions and directly determines the upper voltage limit imposed on protected circuitry during transient events. The SMA6F54A-M3/H maintains this clamping performance across its specified operating temperature range.
Does the SMA6F54A-M3/H meet automotive qualification standards?
The SMA6F54A-M3/H is not AEC-Q200 qualified; it is an industrial-grade TVS diode rated for operation from –55 °C to +175 °C junction temperature and compliant with JESD201 class 2 whisker testing. While widely used in automotive body electronics, formal automotive qualification requires additional stress testing beyond the device's published specifications. For AEC-Q200 applications, consult Vishay's automotive-grade equivalents such as the SMA6F54AHE3/61T.
What is the meaning of the "H" suffix in SMA6F54A-M3/H?
The "H" suffix in SMA6F54A-M3/H denotes the preferred package code for tape-and-reel delivery, indicating a 7-inch diameter plastic tape and reel containing 3500 units. This code aligns with Vishay's ordering nomenclature for SMA6F22A through SMA6F130A devices and does not affect electrical or mechanical characteristics-only packaging logistics and reel size.
Can the SMA6F54A-M3/H be used in bidirectional protection configurations?
No, the SMA6F54A-M3/H is strictly unidirectional and must be used with correct polarity-cathode connected toward the higher-potential side of the protected line. Bidirectional protection requires either two back-to-back unidirectional devices or a dedicated bidirectional TVS like the SMA6F54CA-M3/H. Using SMA6F54A-M3/H in reverse orientation will result in forward conduction rather than clamping during negative transients.
How does the thermal resistance of SMA6F54A-M3/H impact its power derating?
The SMA6F54A-M3/H exhibits RθJA of 120–150 °C/W on FR4 PCB with 2 oz. copper, meaning ambient temperature rise directly limits usable power: at TA = 75 °C, its 8 W rated power at 55 °C must be derated to ~5.3 W. Derating follows the curve in Figure 5 of the datasheet, ensuring TJ remains ≤175 °C. Mounting on thermally enhanced pads or using RθJM improves heat transfer to heatsinks or chassis.
SMA6F54A-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):
- 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/H FAQ
1.How can I place an order for SMA6F54A-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6F54A-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 SMA6F54A-M3/H reliable?
The price and inventory of SMA6F54A-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 SMA6F54A-M3/H is usually 5 days.
3.What payment methods are accepted for SMA6F54A-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6F54A-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6F54A-M3/H?
SMA6F54A-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6F54A-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 SMA6F54A-M3/H?
For technical support, including SMA6F54A-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6F54A-M3/H requirements.
6.How does Aetrix verify that SMA6F54A-M3/H is sourced from the original manufacturer or authorized distributors?
All SMA6F54A-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 SMA6F54A-M3/H meets industry standards.
7.What is the process for return or replacement of SMA6F54A-M3/H?
All SMA6F54A-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMA6F54A-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 SMA6F54A-M3/H part is unused and in its original packaging.
Return procedure for SMA6F54A-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA6F54A-M3/H Tags
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