Vishay General Semiconductor - Diodes Division SMA6F36A-M3/H
- Part No.:
- SMA6F36A-M3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
SMA6F36A-M3/H.pdf
- Description:
- 600W,36V 5%,UNIDIR,SLIM SMA TVS
- Quantity:
- Payment:

- Shipping:

Inventory:5,519
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Product details
Overview
SMA6F36A-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 36 V stand-off voltage (VWM), 40.0–44.2 V breakdown voltage (VBR), 58.3 V clamping voltage (VC) at 10/1000 μs 10 A pulse, 600 W peak pulse power, and IEC 61000-4-2 Level 4 ESD immunity (15 kV air / 8 kV contact).
For engineers reviewing the SMA6F36A-M3/H datasheet, SMA6F36A-M3/H pinout, SMA6F36A-M3/H application, or SMA6F36A-M3/H equivalent, key selection criteria include clamping performance under 10/1000 μs and 8/20 μs surge waveforms, thermal derating above 25 °C, junction temperature limits up to +175 °C, and compatibility with automated SMT placement on FR4 PCBs using standard 2 oz. copper footprint.
Technical Context
This TVS diode operates as a unidirectional Zener-based clamp, activating when reverse voltage exceeds its breakdown threshold (VBR = 40.0–44.2 V at 1 mA). Its dynamic resistance (RD = 1.37 Ω) and low clamping voltage (VC = 58.3 V @ 10 A, 10/1000 μs) ensure rapid suppression of transient energy while limiting stress on downstream ICs and MOSFETs.
It meets J-STD-020 MSL Level 1 moisture sensitivity, supports reflow up to 260 °C peak, and delivers 4 kW peak pulse power under 8/20 μs waveform-critical for telecom and industrial surge immunity. The SlimSMA package enables high-density layout with 0.95 mm typical height and matte tin-plated leads compliant with JESD22-B102 solderability standards.
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 - defines reliable turn-on threshold across temperature and unit variation |
| VC @ IPP = 10 A (10/1000 μs) | 58.3 V - peak voltage seen by protected circuit during standardized surge event |
| PPPM (10/1000 μs) | 600 W - surge energy handling capacity per IEC 61000-4-5 Ed.3 Annex C |
| PPPM (8/20 μs) | 4000 W - higher-energy surge capability relevant to telecom line protection |
| ID @ VWM | 0.2 μA max - ultra-low leakage preserves signal integrity and battery life in standby |
| TJ max. | +175 °C - enables operation in harsh environments including automotive under-hood and industrial motor drives |
Pinout & Package
Package: SlimSMA (DO-221AC), surface-mount, unidirectional configuration with cathode band marking. Dimensions: 4.35 × 2.70 × 0.95 mm (L × W × H), MSL Level 1, halogen-free, RoHS-compliant, JESD201 Class 2 whisker tested.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction; tied to system ground or low-side reference | Provides return path for clamped surge current; must connect to low-impedance ground plane |
| Cathode | Protected line connection; marked by color band | Connects to signal/power line requiring transient protection; reverse-biased during normal operation |
Key Features
| Feature | Design Value |
|---|---|
| Very low profile (0.95 mm height) | Enables use in space-constrained consumer and portable electronics without compromising board stacking height |
| IEC 61000-4-2 Level 4 ESD rating | Guarantees robustness against human-body-model discharges up to 15 kV (air) and 8 kV (contact) |
| 600 W (10/1000 μs) & 4 kW (8/20 μs) PPPM | Supports both general-purpose and telecom-grade surge immunity requirements per IEC 61000-4-5 |
| Matte tin-plated leads, J-STD-002 compliant | Ensures reliable solder joint formation with lead-free reflow profiles and eliminates intermetallic growth concerns |
| Unidirectional polarity | Optimized for DC-biased lines where reverse conduction is not required, reducing capacitance vs. bidirectional variants |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Protection of gate drivers and microcontroller I/O pins from flyback transients generated by relay and solenoid switching in PLCs and motor controllers. IC Role / Device Role: Unidirectional TVS placed between MOSFET gate and source, or across MCU GPIO and chassis ground. Use Value: Limits clamped voltage to ≤58.3 V, preventing latch-up or oxide damage in 3.3 V/5 V logic interfaces while surviving repeated 600 W surges. | Use Scenario: Shielding LIN bus transceivers and sensor signal lines (e.g., ambient temperature, door position) from load dump and ISO 7637-2 pulses. IC Role / Device Role: Standoff-rated TVS on 12 V supply rail and data lines, leveraging 36 V VWM to avoid false triggering during battery transients. Use Value: Maintains <0.2 μA leakage at 36 V, preserving low-power sleep modes; withstands 175 °C junction temperature during under-hood operation. |
| Telecom Power Feeds | Consumer USB-C Port Protection |
Use Scenario: Secondary surge protection on -48 V DC telecom power distribution boards upstream of DC/DC converters. IC Role / Device Role: High-energy TVS absorbing 8/20 μs surges up to 4 kW, coordinated with upstream GDTs or MOVs. Use Value: Delivers 4000 W peak pulse power without thermal runaway, enabling compact, single-stage protection architecture. | Use Scenario: Reverse-polarity and ESD protection on VBUS and CC lines in USB-C receptacles for smartphones and accessories. IC Role / Device Role: SlimSMA-packaged TVS placed adjacent to connector, exploiting low height (0.95 mm) and automated placement compatibility. Use Value: Meets IEC 61000-4-2 Level 4 (15 kV air) without increasing board thickness; matte tin terminations ensure lead-free reflow reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6F36A-M3/6B | Same electrical specs; differs only in tape-and-reel packaging (13" reel, 14,000 pcs vs. 7" reel, 3500 pcs for -M3/H) | No functional difference; intended for high-volume SMT lines requiring larger reels | Select -M3/6B only when production volume justifies 13" reel logistics and feeder compatibility |
| SMAJ36A-M3 | Same VWM/VBR/VC ratings but in larger SMA (DO-214AC) package (2.4 mm height); 400 W (10/1000 μs) vs. 600 W | Lower surge rating and taller profile limit use in ultra-thin or high-density layouts | Choose SMAJ36A-M3 only if legacy board design uses SMA footprint and 400 W rating suffices |
Compared with SMA6F36A-M3/H, SMA6F36A-M3/6B offers identical protection performance with different packaging logistics, while SMAJ36A-M3 trades 33 % lower peak pulse power and 2.5× greater height for broader legacy footprint support-making SMA6F36A-M3/H optimal for new designs prioritizing surge margin and space efficiency.
Availability
SMA6F36A-M3/H is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and telecom power feeds requiring stable component supply, consistent MSL Level 1 handling, and verified 175 °C junction temperature operation.
Supply support for SMA6F36A-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 part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-efficiency, low-profile transient suppression in space-constrained, high-reliability DC power and signal line applications across automotive, industrial, and communications markets.
FAQ
What is the clamping voltage of SMA6F36A-M3/H at 10 A under 10/1000 μs waveform?
The clamping voltage (VC) of SMA6F36A-M3/H is 58.3 V at 10 A with a 10/1000 μs surge waveform, measured per IEC 61000-4-5 test conditions. This value ensures downstream components like 3.3 V or 5 V microcontrollers remain within safe operating voltage margins during transient events. The SMA6F36A-M3/H achieves this with a dynamic resistance of 1.37 Ω and breakdown voltage range of 40.0–44.2 V.
Does SMA6F36A-M3/H meet automotive AEC-Q200 requirements?
No, SMA6F36A-M3/H 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 and MSL Level 1 handling, but lacks the extended temperature cycling, vibration, and qualification testing mandated by AEC-Q200. For automotive-critical systems, engineers should verify alternate AEC-Q200–qualified TVS devices; SMA6F36A-M3/H remains suitable for non-safety-critical automotive body electronics where customer validation confirms robustness.
What is the thermal resistance junction-to-ambient (RθJA) for SMA6F36A-M3/H on a standard FR4 PCB?
The typical thermal resistance junction-to-ambient (RθJA) for SMA6F36A-M3/H mounted on a standard FR4 PCB with 2 oz. copper is 120 °C/W, with a maximum of 150 °C/W per JEDEC 51-2A. This value governs power derating above 25 °C ambient: at 55 °C ambient, the device's power dissipation must be reduced to 8 W. The SMA6F36A-M3/H's RθJM (junction-to-mount) is 12–15 °C/W, supporting thermal coupling to heatsink pads if needed.
Can SMA6F36A-M3/H be used in bidirectional signal line protection?
No, SMA6F36A-M3/H is unidirectional only and must not be used on AC-coupled or bidirectional signal lines such as RS-485 or USB D+/D– without external biasing. Its cathode-band polarity and Zener-based structure conduct only in reverse breakdown; forward conduction occurs at ~0.8 V, offering no symmetrical clamping. For bidirectional protection, select a dedicated bidirectional TVS like SMA6F36CA-M3/H or use back-to-back unidirectional devices-never substitute SMA6F36A-M3/H directly into AC signal paths.
What does the "H" suffix indicate in SMA6F36A-M3/H?
Per Vishay's ordering information, the "H" suffix in SMA6F36A-M3/H denotes the preferred package code for tape-and-reel delivery in 7-inch diameter reels containing 3500 units. It corresponds to the SlimSMA (DO-221AC) package variant used for SMA6F22A through SMA6F130A series devices. The "M3" prefix indicates halogen-free, RoHS-compliant, industrial-grade construction with matte tin plating and JESD201 Class 2 whisker resistance. The SMA6F36A-M3/H is functionally identical to SMA6F36A-M3/6B except for reel size and quantity.
SMA6F36A-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):
- 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/H FAQ
1.How can I place an order for SMA6F36A-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6F36A-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 SMA6F36A-M3/H reliable?
The price and inventory of SMA6F36A-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 SMA6F36A-M3/H is usually 5 days.
3.What payment methods are accepted for SMA6F36A-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6F36A-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6F36A-M3/H?
SMA6F36A-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6F36A-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 SMA6F36A-M3/H?
For technical support, including SMA6F36A-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6F36A-M3/H requirements.
6.How does Aetrix verify that SMA6F36A-M3/H is sourced from the original manufacturer or authorized distributors?
All SMA6F36A-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 SMA6F36A-M3/H meets industry standards.
7.What is the process for return or replacement of SMA6F36A-M3/H?
All SMA6F36A-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMA6F36A-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 SMA6F36A-M3/H part is unused and in its original packaging.
Return procedure for SMA6F36A-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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