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Vishay General Semiconductor - Diodes Division SMA6F36A-M3/I
- Part No.:
- SMA6F36A-M3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
SMA6F36A-M3/I.pdf
- Description:
- 600W,36V 5%,UNIDIR,SLIM SMA TVS
- Quantity:
- Payment:
- Shipping:
Inventory:7,660
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Product details
Overview
SMA6F36A-M3/I 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 signal and power lines. It features 36 V stand-off voltage (VWM), 40.0–44.2 V breakdown voltage (VBR), 58.3 V max clamping voltage at 10/1000 μs (IPP = 10.3 A), 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 SMA6F36A-M3/I datasheet, SMA6F36A-M3/I pinout, SMA6F36A-M3/I application, or SMA6F36A-M3/I equivalent, key selection criteria include clamping performance under 10/1000 μs surges, thermal derating on FR4 PCB, unidirectional polarity for DC-biased lines, and M3 halogen-free RoHS-compliant construction with JESD201 class 2 whisker resistance.
Technical Context
This TVS diode operates as a voltage-clamped overvoltage protection device, triggered when reverse voltage exceeds its specified VBR range (40.0–44.2 V at IT = 1 mA). Its low dynamic resistance (RD = 1.37 Ω) ensures tight clamping during transient events, while its unidirectional configuration prevents forward conduction during normal operation.
Thermal design relies on junction-to-ambient thermal resistance (RθJA = 120–150 °C/W) and junction-to-mount (RθJM = 12–15 °C/W), with power dissipation derated above TA = 25 °C per JEDEC 51-2A (FR4, 2 oz.) and JEDEC 51-14 (TDIM). The device sustains 175 °C maximum junction temperature and meets MSL level 1 reflow compatibility (260 °C peak).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 40.0 V / 44.2 V at 1 mA - Breakdown threshold range defining turn-on consistency |
| VC @ IPP | 58.3 V at 10.3 A (10/1000 μs) - Clamped voltage seen by protected circuit during standard surge |
| PPPM | 600 W (10/1000 μs), 4 kW (8/20 μs) - Surge energy handling capacity per waveform standard |
| ID @ VWM | 0.2 μA max - Leakage current ensuring minimal standby power loss and signal integrity |
| TJ max | 175 °C - Maximum allowable junction temperature for reliable long-term operation |
| ESD rating | IEC 61000-4-2 level 4: 15 kV air / 8 kV contact - Robustness against human-body-model discharges |
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, compliant with UL 94 V-0 and JESD201 class 2 whisker requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward bias | Connected to lower-potential side of protected line; enables unidirectional clamping |
| Cathode | Current exit terminal during forward bias; clamping node during reverse surge | Connected to higher-potential side (e.g., VCC or signal line); defines polarity and clamping reference |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SlimSMA package | 0.95 mm typical height enables space-constrained PCB layouts and automated placement |
| High-energy surge capability | 600 W (10/1000 μs) and 4 kW (8/20 μs) support robust protection against lightning and inductive switching |
| Low clamping voltage | 58.3 V at 10.3 A ensures protected ICs remain below absolute maximum ratings during transients |
| Halogen-free & RoHS-compliant | M3 suffix denotes industrial-grade, lead-free, environmentally compliant construction per JESD201 class 2 |
| MSL level 1 rating | Compatible with standard SMT reflow profiles up to 260 °C peak, eliminating moisture sensitivity concerns |
Applications
| Industrial Motor Control | Automotive Body Electronics |
|---|---|
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: Unidirectional TVS placed across motor coil supply lines or MOSFET gate-source terminals. Use Value: Limits transient voltage to ≤58.3 V, preventing latch-up or oxide damage in 36 V-rated control ICs. | Use Scenario: Shielding LIN bus transceivers and sensor interfaces (e.g., door module switches) from load dump and battery reversal-induced surges. IC Role / Device Role: Standoff-rated clamping device on 12 V supply rails and bidirectional signal lines with DC bias. Use Value: Withstands 15 kV ESD air discharge and clamps 8/20 μs surges to safe levels without degrading signal rise time. |
| Consumer Power Adapters | Telecom Interface Protection |
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters and USB PD chargers exposed to mains coupling noise. IC Role / Device Role: Clamp diode on 5–24 V output rails upstream of LDOs and USB controllers. Use Value: 0.2 μA leakage preserves no-load efficiency; 36 V VWM matches common adapter output tolerances. | Use Scenario: Protecting Ethernet PHYs, RS-485 transceivers, and PoE injectors from induced surges on twisted-pair cables. IC Role / Device Role: Line-to-ground TVS on differential pairs with common-mode choke integration. Use Value: SlimSMA footprint allows dense layout near connectors; 600 W rating meets IEC 61000-4-5 level 3 requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6F36AHE3/52 (Vishay) | Same electrical specs but in DO-214AC (SMA) package; 2.3 mm height vs. SlimSMA's 0.95 mm | Less suitable for ultra-thin consumer devices; compatible with legacy SMA footprints | Select when board stack height allows >2 mm and existing SMA land patterns are used |
| SMCJ36A (Bourns) | Higher 1500 W (10/1000 μs) rating; DO-214AB (SMC) package; 2.6 mm height; VBR 40–44.2 V same | Better for high-energy industrial surges; incompatible with SlimSMA footprint due to larger body and lead spacing | Choose for enhanced surge margin where PCB real estate permits larger package |
Compared with SMA6F36A-M3/I, SMA6F36AHE3/52 offers identical clamping performance but requires more vertical clearance, while SMCJ36A delivers higher pulse power at the cost of footprint compatibility-making SMA6F36A-M3/I optimal for space-constrained, high-volume SMT designs needing precise 36 V standoff and low-profile mounting.
Availability
SMA6F36A-M3/I is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, consumer power adapters, and telecom interface protection requiring stable component supply, consistent M3-grade material compliance, and verified SlimSMA packaging.
Supply support for SMA6F36A-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 is engineered for high-reliability transient suppression in compact surface-mount applications, targeting design-in across automotive, industrial, and consumer electronics where low profile, ESD robustness, and precise clamping are critical.
FAQ
What is the maximum clamping voltage of the SMA6F36A-M3/I under a 10/1000 μs surge?
The SMA6F36A-M3/I has a maximum clamping voltage (VC) of 58.3 V when subjected to a 10/1000 μs surge waveform at its rated peak pulse current of 10.3 A. This value is measured per the conditions defined in the Vishay datasheet (Document Number: 89458) and ensures downstream components remain within safe operating limits during standardized transient events.
Is the SMA6F36A-M3/I suitable for bidirectional signal line protection?
No, the SMA6F36A-M3/I is a unidirectional TVS diode and must not be used on AC-coupled or truly bidirectional lines without additional circuitry. Its polarity-marked by a cathode band-requires correct orientation relative to DC bias. For bidirectional protection, a dedicated bidirectional TVS such as SMA6F36CA-M3/I would be required instead of the SMA6F36A-M3/I.
Does the SMA6F36A-M3/I meet automotive qualification standards like AEC-Q200?
The SMA6F36A-M3/I is not explicitly qualified to AEC-Q200. While it meets industrial-grade specifications-including MSL level 1, JESD201 class 2 whisker resistance, and IEC 61000-4-2 level 4 ESD-it lacks formal automotive stress testing documentation. For AEC-Q200-compliant designs, engineers should verify qualification status directly with Vishay or select an AEC-Q200-listed variant such as the SMA6F36AHE3_A/H.
What is the thermal resistance of the SMA6F36A-M3/I when mounted on a standard FR4 PCB?
When mounted on a standard FR4 PCB with 2 oz. copper and the recommended footprint, the SMA6F36A-M3/I exhibits a typical junction-to-ambient thermal resistance (RθJA) of 120–150 °C/W, per JEDEC 51-2A. This value governs power derating above 25 °C ambient and must be applied in thermal calculations for sustained power dissipation scenarios.
Can the SMA6F36A-M3/I replace SMAJ36A in an existing design?
No direct replacement is assured. Although both are 36 V unidirectional TVS diodes, SMAJ36A uses DO-214AC (SMA) packaging (2.3 mm height), while SMA6F36A-M3/I uses SlimSMA (DO-221AC) with 0.95 mm height and different pad layout. Mechanical fit, thermal performance, and solder joint reliability differ-PCB redesign is required to accommodate the SlimSMA footprint and ensure proper thermal path for the SMA6F36A-M3/I.
SMA6F36A-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):
- 36V
- Voltage - Breakdown (Min):
- 40V
- Voltage - Clamping (Max) @ Ipp:
- 58.3V
- Current - Peak Pulse (10/1000µs):
- 10.3A
- 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)
SMA6F36A-M3/I FAQ
1.How can I place an order for SMA6F36A-M3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6F36A-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 SMA6F36A-M3/I reliable?
The price and inventory of SMA6F36A-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 SMA6F36A-M3/I is usually 5 days.
3.What payment methods are accepted for SMA6F36A-M3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6F36A-M3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6F36A-M3/I?
SMA6F36A-M3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6F36A-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 SMA6F36A-M3/I?
For technical support, including SMA6F36A-M3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6F36A-M3/I requirements.
6.How does Aetrix verify that SMA6F36A-M3/I is sourced from the original manufacturer or authorized distributors?
All SMA6F36A-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 SMA6F36A-M3/I meets industry standards.
7.What is the process for return or replacement of SMA6F36A-M3/I?
All SMA6F36A-M3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMA6F36A-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 SMA6F36A-M3/I part is unused and in its original packaging.
Return procedure for SMA6F36A-M3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA6F36A-M3/I Tags
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