Vishay General Semiconductor - Diodes Division TA6F22AHM3/6A
- Part No.:
- TA6F22AHM3/6A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
TA6F22AHM3/6A.pdf
- Description:
- TVS DIODE 18.8VWM 30.6VC DO221AC
- Quantity:
- Payment:

- Shipping:

Inventory:5,847
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Product details
Overview
TA6F22AHM3/6A from Vishay General Semiconductor is a unidirectional surface-mount PAR® Transient Voltage Suppressor designed for clamping inductive switching transients and ESD events on signal lines and power rails. It features a breakdown voltage of 20.9–23.1 V at 1 mA, clamps to ≤30.6 V at 19.6 A (10/1000 μs), delivers 600 W peak pulse power, and operates up to +185 °C junction temperature - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the TA6F22AHM3/6A datasheet, TA6F22AHM3/6A pinout, TA6F22AHM3/6A application, or TA6F22AHM3/6A equivalent, key selection criteria include unidirectional clamping behavior, DO-221AC (SlimSMA) package compatibility with automated placement, AEC-Q101 qualification, 15 kV air/8 kV contact ESD rating per IEC 61000-4-2 Level 4, and thermal resistance (RθJA = 145 °C/W).
Technical Context
The TA6F22AHM3/6A employs passivated anisotropic rectifier technology optimized for high-temperature stability and low-profile mounting. Its unidirectional architecture provides precise reverse-biased clamping with tight VBR tolerance (±5%) and low leakage (<1 μA at VWM = 18.8 V, TJ = 150 °C).
It is rated for 600 W peak pulse power (10/1000 μs), supports 19.6 A peak surge current, and maintains operation across –65 °C to +185 °C junction range. The device meets MSL Level 1 per J-STD-020 and passes JESD201 Class 2 whisker testing due to matte tin-plated terminals.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 20.9–23.1 V at 1 mA - defines precise clamping onset threshold for overvoltage protection |
| Stand-off Voltage VWM | 18.8 V - maximum continuous reverse operating voltage before leakage exceeds 1 μA |
| Clamping Voltage VC | ≤30.6 V at 19.6 A (10/1000 μs) - limits downstream voltage stress during surge events |
| Peak Pulse Power | 600 W (10/1000 μs) - sustains high-energy transients without failure under defined waveform |
| Junction Temperature Range | –65 °C to +185 °C - enables use in under-hood automotive and high-ambient industrial environments |
| ESD Rating | IEC 61000-4-2 Level 4: 15 kV air / 8 kV contact - protects against human-body-model electrostatic discharge |
| Thermal Resistance RθJA | 145 °C/W - determines self-heating rise above ambient under steady-state power dissipation |
Pinout & Package
Package: DO-221AC (SlimSMA), ultra-low-profile surface-mount case with cathode band marking; dimensions: 4.15–4.35 mm length × 2.50–2.70 mm width × 0.95 mm typical height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line; enables unidirectional clamping when reverse-biased |
| Cathode | Clamping output terminal | Marked by color band; connected to higher-potential rail or signal line to sink transient current into ground or supply |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low profile | 0.95 mm typical height - enables compact PCB layout in space-constrained modules like automotive ECUs |
| AEC-Q101 qualification | Validated for automotive-grade reliability - supports deployment in safety-critical sensor and control units |
| Junction passivation | Optimized anisotropic rectifier design - ensures stable VBR and low leakage over lifetime and temperature |
| Automated placement compatibility | DO-221AC geometry and matte tin terminations - compatible with standard SMT pick-and-place and reflow processes |
| High-temperature capability | TJmax = +185 °C - eliminates derating concerns in engine bay or industrial motor drive applications |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load-dump and inductive kickback in vehicle ECUs. IC Role / Device Role: Unidirectional TVS placed between signal line and ground to clamp transients below IC absolute maximum ratings. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V interface ICs during 12 V/24 V system surges, enabled by 30.6 V clamping at 19.6 A. |
Use Scenario: Safeguarding PLC digital input modules against field-wiring induced surges and ESD during maintenance or cable routing. IC Role / Device Role: Primary front-end transient suppressor on 24 V DC input channels before optocoupler or Schmitt-trigger conditioning. Use Value: Maintains functional integrity under repeated 600 W pulses without degradation, supported by 185 °C junction rating and AEC-Q101 qualification. |
| Consumer Device USB Port | Telecom Line Card Protection |
|
Use Scenario: ESD hardening of USB 2.0 D+/D− lines in portable audio/video equipment exposed to frequent user handling. IC Role / Device Role: Low-capacitance unidirectional TVS shunting fast ESD pulses to ground while preserving signal integrity. Use Value: Delivers 15 kV air/8 kV contact ESD immunity without adding measurable capacitance that would distort 480 Mbps data eye. |
Use Scenario: Secondary protection on Ethernet PHY or xDSL line driver outputs subjected to lightning-induced surges in central office equipment. IC Role / Device Role: Standoff-clamp stage following gas discharge tube (GDT) primary protection to limit let-through voltage. Use Value: Clamps residual transients to ≤30.6 V within nanoseconds, preventing damage to sensitive 3.3 V PHY transceivers downstream. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ22A-E3/5A (Vishay) | Same DO-214AC package; VBR = 23.3–25.8 V; lower PPPM = 400 W; no AEC-Q101 qualification | Limited to commercial/industrial use; not approved for automotive under-hood deployment | Select when cost sensitivity outweighs automotive qualification and 600 W surge margin is unnecessary |
| 1.5SMC22A (ON Semiconductor) | DO-214AB package; larger footprint (7.11 × 6.22 mm); VBR = 23.1–25.5 V; PPPM = 1500 W; AEC-Q101 qualified | Requires PCB redesign due to larger case; suited for higher-energy surge environments where space permits | Choose when higher 1500 W pulse rating is required and board area allows DO-214AB footprint |
Compared with SMAJ22A-E3/5A and 1.5SMC22A, the TA6F22AHM3/6A uniquely balances AEC-Q101 compliance, ultra-low 0.95 mm profile, and 600 W capability in the compact DO-221AC package - making it optimal for next-generation automotive modules where height and qualification are non-negotiable.
Availability
TA6F22AHM3/6A is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O interface hardening, and telecom line card surge suppression requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TA6F22AHM3/6A 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, MOSFETs, and protection devices with emphasis on reliability, thermal performance, and automotive qualification.
The TA6F22AHM3/6A belongs to Vishay's PAR® family of high-temperature TVS diodes, engineered specifically for robust transient suppression in automotive and industrial systems where extended junction temperature operation and AEC-Q101 compliance are mandatory.
FAQ
What is the exact breakdown voltage range for TA6F22AHM3/6A?
The TA6F22AHM3/6A has a guaranteed breakdown voltage (VBR) range of 20.9 V to 23.1 V at a test current of 1 mA, measured per the Vishay datasheet Document Number 89939. This tight ±5% tolerance ensures consistent clamping behavior across production lots and temperature extremes, critical for protecting sensitive 24 V interface ICs without premature conduction.
Is TA6F22AHM3/6A qualified for automotive applications?
Yes, the TA6F22AHM3/6A is AEC-Q101 qualified, as explicitly stated in the Vishay datasheet. This qualification confirms its suitability for automotive electronic systems, including engine control units, body control modules, and ADAS sensor interfaces where reliability under thermal cycling, vibration, and high-temperature operation is essential.
What package type does TA6F22AHM3/6A use, and what are its key mechanical features?
The TA6F22AHM3/6A uses the DO-221AC (SlimSMA) package: a surface-mount case measuring 4.15–4.35 mm in length, 2.50–2.70 mm in width, and only 0.95 mm in typical height. It features matte tin-plated terminals compliant with J-STD-002 and JESD22-B102, and meets MSL Level 1 per J-STD-020 with a 260 °C reflow peak.
How does the clamping performance of TA6F22AHM3/6A compare to its stand-off voltage?
The TA6F22AHM3/6A has a stand-off voltage (VWM) of 18.8 V and clamps to ≤30.6 V at its rated peak pulse current of 19.6 A (10/1000 μs). This 11.8 V differential ensures sufficient margin above normal operating voltage while limiting transient overshoot to safe levels for downstream 24 V-rated components.
Does TA6F22AHM3/6A meet international ESD immunity standards?
Yes, the TA6F22AHM3/6A meets IEC 61000-4-2 Level 4 for electrostatic discharge immunity: 15 kV in air discharge mode and 8 kV in contact discharge mode. This certification is verified per the Vishay datasheet and enables robust protection of USB, CAN, and sensor interfaces in consumer, industrial, and automotive end equipment.
TA6F22AHM3/6A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-221AC, SMA Flat Leads
- Series:
- *
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 18.8V
- Voltage - Breakdown (Min):
- 20.9V
- Voltage - Clamping (Max) @ Ipp:
- 30.6V
- Current - Peak Pulse (10/1000µs):
- 19.6A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-221AC (SlimSMA)
TA6F22AHM3/6A FAQ
1.How can I place an order for TA6F22AHM3/6A through Aetrix?
Please submit a Request for Quotation (RFQ) for TA6F22AHM3/6A 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 TA6F22AHM3/6A reliable?
The price and inventory of TA6F22AHM3/6A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TA6F22AHM3/6A is usually 5 days.
3.What payment methods are accepted for TA6F22AHM3/6A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TA6F22AHM3/6A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TA6F22AHM3/6A?
TA6F22AHM3/6A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TA6F22AHM3/6A 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 TA6F22AHM3/6A?
For technical support, including TA6F22AHM3/6A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TA6F22AHM3/6A requirements.
6.How does Aetrix verify that TA6F22AHM3/6A is sourced from the original manufacturer or authorized distributors?
All TA6F22AHM3/6A 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 TA6F22AHM3/6A meets industry standards.
7.What is the process for return or replacement of TA6F22AHM3/6A?
All TA6F22AHM3/6A units undergo pre-shipment inspection (PSI). If there is an issue with TA6F22AHM3/6A, 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 TA6F22AHM3/6A part is unused and in its original packaging.
Return procedure for TA6F22AHM3/6A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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