My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMA6F22A-M3/I
- Part No.:
- SMA6F22A-M3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
SMA6F22A-M3/I.pdf
- Description:
- 600W,22V 5%,UNIDIR,SLIM SMA TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,987
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMA6F22A-M3/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SlimSMA (DO-221AC) package, designed for clamping fast voltage transients on power and signal lines. It delivers 600 W peak pulse power (10/1000 μs), 4 kW (8/20 μs), with 22 V stand-off voltage (VWM), 24.4–26.9 V breakdown (VBR), and 35.5 V clamping voltage (VC) at 16.9 A, protecting MOSFETs and ICs in industrial sensor interfaces.
For engineers reviewing the SMA6F22A-M3/I datasheet, SMA6F22A-M3/I pinout, SMA6F22A-M3/I application, or SMA6F22A-M3/I equivalent, key selection criteria include unidirectional polarity, MSL Level 1 moisture sensitivity, IEC 61000-4-2 Level 4 ESD immunity (15 kV air / 8 kV contact), and compatibility with automated SMT placement on FR4 PCBs with 2 oz. copper.
Technical Context
This TVS diode operates as a Zener-based clamping device triggered by overvoltage events exceeding its 22 V stand-off threshold. Its low dynamic resistance (0.509 Ω) ensures rapid voltage limiting during 10/1000 μs and 8/20 μs surges, while the SlimSMA package enables high-density layout with 0.95 mm profile and J-STD-002-compliant matte tin terminals.
It functions exclusively in unidirectional mode-cathode-banded-requiring correct orientation in series with protected lines. Thermal performance is specified for junction temperatures from –55 °C to +175 °C, with derated power dissipation above 25 °C ambient and thermal resistance RθJA up to 150 °C/W on standard FR4.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 22 V - Maximum continuous reverse operating voltage before conduction begins |
| VBR (min/max) | 24.4 V / 26.9 V - Breakdown occurs within this range at 1 mA test current, defining turn-on threshold |
| VC @ IPP | 35.5 V @ 16.9 A - Clamped voltage during 10/1000 μs surge, limiting stress on downstream components |
| PPPM (10/1000 μs) | 600 W - Peak transient energy absorption capability under standard lightning surge waveform |
| PPPM (8/20 μs) | 4000 W - Higher-energy surge handling for telecom-grade fast transients |
| ESD Rating | IEC 61000-4-2 Level 4: 15 kV air / 8 kV contact - Validated electrostatic discharge protection margin |
| Package | SlimSMA (DO-221AC) - 0.95 mm height, MSL Level 1, halogen-free, RoHS-compliant surface-mount outline |
Pinout & Package
SlimSMA (DO-221AC) is a two-terminal surface-mount package with cathode indicated by a color band. Terminals are matte tin-plated, solderable per J-STD-002 and JESD22-B102, and qualified for JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward bias; connected to protected line ground or low-side reference | Provides return path during clamping; must be routed to lowest-impedance ground plane for effective surge diversion |
| Cathode | Current exit point during reverse avalanche; marked by color band | Connected to the line being protected; polarity reversal causes failure-orientation is critical in layout |
Key Features
| Feature | Design Value |
|---|---|
| Very low profile (0.95 mm typical height) | Enables use in ultra-thin consumer and portable electronics where board space and z-height are constrained |
| Peak pulse power: 600 W (10/1000 μs) | Meets IEC 61000-4-5 surge immunity requirements for industrial control inputs and sensor power rails |
| ESD immunity: IEC 61000-4-2 Level 4 | Protects USB, I²C, and GPIO interfaces against human-body-model discharges without external shielding |
| MSL Level 1, peak reflow ≤ 260 °C | Allows single-pass lead-free reflow without baking or special handling, reducing manufacturing cost and risk |
| Halogen-free, RoHS-compliant, industrial grade | Supports compliance-critical deployments in automotive-adjacent and industrial automation systems |
Applications
| Industrial Sensor Interface | Automotive Body Control Module |
|---|---|
Use Scenario: Protecting analog output lines of pressure/temperature sensors exposed to load-dump and inductive switching noise in factory-floor PLCs. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed directly at connector entry point before signal conditioning amplifier. Use Value: Limits transient voltage to ≤35.5 V during 16.9 A surges, preventing latch-up or gate oxide damage in precision op-amps and ADC front-ends. | Use Scenario: Safeguarding LIN bus transceiver power supply pins against battery reverse-polarity and jump-start spikes. IC Role / Device Role / Timing Role: Standoff-rated (22 V) clamping diode installed between VCC and GND on transceiver IC power rail. Use Value: Absorbs 4 kW 8/20 μs pulses without degradation, maintaining LIN communication integrity during vehicle-level EMC testing. |
| Consumer IoT Power Input | Telecom Ethernet PHY Protection |
Use Scenario: Input-stage surge suppression for USB-C PD adapters and smart home hubs powered via 24 V DC wall adapters. IC Role / Device Role / Timing Role: Primary overvoltage clamp on DC input before buck converter and system PMIC. Use Value: Withstands repeated 600 W transients while maintaining <0.2 μA leakage at 22 V, minimizing standby power loss. | Use Scenario: Secondary protection on 12 V bias rail feeding 10/100/1000BASE-T Ethernet PHYs in network switches and routers. IC Role / Device Role / Timing Role: Fast-response TVS parallel to bulk capacitor, shunting induced lightning surges from PoE injectors or cable coupling. Use Value: 35.5 V clamping ensures PHY VDDIO remains below absolute maximum rating during 8/20 μs surges up to 4 kW. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6F22A-M3/H | Identical electrical specs and SlimSMA package; differs only in tape-and-reel packaging (3500 pcs vs. 14000 pcs per reel) | No functional difference; suited for lower-volume prototyping or small-batch production runs | Select SMA6F22A-M3/H when reel size or inventory turnover favors smaller reels. |
| SMAJ22A-M3/5B | Same VWM (22 V) and VC (35.5 V), but in larger SMA (DO-214AC) package with higher RθJA (160 °C/W) and 400 W PPPM (10/1000 μs) | Lower surge rating and taller profile limit use in space-constrained or high-power industrial designs | Choose SMAJ22A-M3/5B only if legacy footprint compatibility outweighs SlimSMA's height and power advantages. |
Compared with SMA6F22A-M3/H, the SMA6F22A-M3/I offers identical protection performance with higher volume packaging; versus SMAJ22A-M3/5B, it provides 50 % higher 10/1000 μs surge rating and 0.35 mm lower profile-critical for modern compact PCB layouts requiring MSL Level 1 reliability.
Availability
SMA6F22A-M3/I is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body control modules, and consumer IoT power inputs requiring stable component supply, long-term lifecycle support, and RoHS/halogen-free compliance.
Supply support for SMA6F22A-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 devices, and optoelectronics with emphasis on reliability and application-specific performance.
The SMA6FxxA series is engineered for high-efficiency transient suppression in space-constrained, high-reliability applications-targeting industrial automation, automotive subsystems, and next-generation consumer electronics where low-profile, high-surge-capability TVS protection is essential.
FAQ
What is the clamping voltage of the SMA6F22A-M3/I under a 10/1000 μs surge?
The SMA6F22A-M3/I has a maximum clamping voltage (VC) of 35.5 V at 16.9 A for a 10/1000 μs waveform. This value is measured per standard test conditions in the Vishay datasheet (Document Number 89458) and defines the upper voltage limit imposed on protected circuitry during such transients. The SMA6F22A-M3/I maintains this clamping performance across its rated junction temperature range of –55 °C to +175 °C.
Is the SMA6F22A-M3/I suitable for bidirectional transient protection?
No, the SMA6F22A-M3/I is strictly unidirectional, as confirmed in the Vishay datasheet's FEATURES section and ELECTRICAL CHARACTERISTICS table. It conducts only in reverse avalanche mode and requires correct cathode-band orientation. For bidirectional protection, a different part number-such as the SMBJ22CA-must be selected. The SMA6F22A-M3/I does not support symmetrical clamping in both polarities.
What is the moisture sensitivity level (MSL) rating for the SMA6F22A-M3/I?
The SMA6F22A-M3/I meets MSL Level 1 per J-STD-020, with a maximum lead-free reflow peak temperature of 260 °C. This means the device can be stored indefinitely at ambient conditions and subjected to standard SMT reflow profiles without baking. The MSL Level 1 rating is explicitly stated in the MECHANICAL DATA section of the Vishay datasheet (89458) and applies to all units in the SlimSMA (DO-221AC) package, including SMA6F22A-M3/I.
Does the SMA6F22A-M3/I comply with RoHS and halogen-free standards?
Yes, the SMA6F22A-M3/I is halogen-free, RoHS-compliant, and classified as industrial grade, as documented in the MECHANICAL DATA section of the Vishay datasheet (89458). The "M3" suffix denotes compliance with these environmental and reliability standards, and the molding compound meets UL 94 V-0 flammability requirements. These attributes are verified for the exact part number SMA6F22A-M3/I per its ordering information row.
What is the thermal resistance junction-to-ambient (RθJA) for the SMA6F22A-M3/I on a standard FR4 PCB?
The SMA6F22A-M3/I has a maximum RθJA of 150 °C/W when mounted on an FR4 PCB with 2 oz. copper and standard footprint, per the THERMAL CHARACTERISTICS table in the Vishay datasheet (89458). This value assumes JEDEC 51-2A test conditions and is used to calculate allowable power dissipation at elevated ambient temperatures. The SMA6F22A-M3/I's thermal performance is validated for continuous operation up to +175 °C junction temperature.
SMA6F22A-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):
- 22V
- Voltage - Breakdown (Min):
- 24.4V
- Voltage - Clamping (Max) @ Ipp:
- 35.5V
- Current - Peak Pulse (10/1000µs):
- 16.9A
- 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)
SMA6F22A-M3/I FAQ
1.How can I place an order for SMA6F22A-M3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6F22A-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 SMA6F22A-M3/I reliable?
The price and inventory of SMA6F22A-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 SMA6F22A-M3/I is usually 5 days.
3.What payment methods are accepted for SMA6F22A-M3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6F22A-M3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6F22A-M3/I?
SMA6F22A-M3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6F22A-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 SMA6F22A-M3/I?
For technical support, including SMA6F22A-M3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6F22A-M3/I requirements.
6.How does Aetrix verify that SMA6F22A-M3/I is sourced from the original manufacturer or authorized distributors?
All SMA6F22A-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 SMA6F22A-M3/I meets industry standards.
7.What is the process for return or replacement of SMA6F22A-M3/I?
All SMA6F22A-M3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMA6F22A-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 SMA6F22A-M3/I part is unused and in its original packaging.
Return procedure for SMA6F22A-M3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA6F22A-M3/I 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 …
