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Vishay General Semiconductor - Diodes Division TA6F22AHM3_A/H
- Part No.:
- TA6F22AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
TA6F22AHM3_A/H.pdf
- Description:
- TVS DIODE 18.8VWM 30.6VC DO221AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,417
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Product details
Overview
TA6F22AHM3_A/H from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) in SlimSMA (DO-221AC) package, with 22.0 V nominal breakdown voltage (VBR), 18.8 V stand-off voltage (VWM), and 600 W peak pulse power (10/1000 µs). It delivers 30.6 A peak pulse current (IPPM) and clamps to 19.6 V at that current, operating up to 185 °C junction temperature and qualified to AEC-Q101 for automotive electronics protection.
For engineers reviewing the TA6F22AHM3_A/H datasheet, TA6F22AHM3_A/H pinout, TA6F22AHM3_A/H application, or TA6F22AHM3_A/H equivalent, key selection factors include its low-profile 0.95 mm height, 30 kV IEC 61000-4-2 ESD rating, MSL Level 1 moisture sensitivity, and suitability for high-reliability automotive sensor line and MOSFET gate protection under inductive switching transients.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for junction stability at elevated temperatures. Its unidirectional architecture provides robust clamping during positive-going transients while maintaining low leakage (<1.0 µA at VWM) across -65 °C to +185 °C operating range.
Thermal performance is defined by RθJA = 120–150 °C/W (FR4 board, minimum pad layout) and RθJM = 12–15 °C/W, enabling reliable operation in compact automotive modules without active cooling. The device meets JESD201 Class 2 whisker resistance and UL 94 V-0 flammability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 20.9 / 22.0 / 23.1 V - Ensures consistent avalanche initiation above system operating voltage with ±5% tolerance |
| VWM | 18.8 V - Maximum continuous reverse voltage before leakage exceeds 1.0 µA, compatible with 18 V automotive rails |
| IPPM (10/1000 µs) | 30.6 A - Peak surge current handling capability for ISO 7637-2 Pulse 1/2a/5a transient suppression |
| VC @ IPPM | 19.6 V - Clamping voltage limits downstream IC stress to safe levels during surge events |
| TJ max | +185 °C - Enables placement near high-temperature components (e.g., powertrain ECUs) without derating |
| ESD Rating | ±30 kV (IEC 61000-4-2 contact/air) - Eliminates need for secondary ESD protection on signal lines |
| Package | SlimSMA (DO-221AC), 0.95 mm typical height - Supports automated SMT assembly and space-constrained PCB layouts |
Pinout & Package
TA6F22AHM3_A/H uses the SlimSMA (DO-221AC) surface-mount package with cathode indicated by a color band. The two-terminal device has no internal complexity-Anode and Cathode are electrically isolated except during avalanche conduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or low-voltage rail; defines polarity for unidirectional clamping |
| Cathode | High-side transient input terminal | Connected to protected line (e.g., sensor output); absorbs positive surges toward ground |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress per JEDEC standards |
| 185 °C junction rating | Enables use in engine bay, transmission control, and ADAS modules where ambient exceeds 125 °C |
| 0.95 mm profile | Reduces board height impact in stacked multi-layer automotive modules and camera housings |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow without baking or special handling protocols |
| Halogen-free & RoHS-compliant | Meets global environmental compliance requirements for Tier 1 automotive supply chain |
Applications
| Automotive Sensor Protection | Power MOSFET Gate Clamp |
|---|---|
Use Scenario: Protecting analog outputs of pressure, temperature, and position sensors exposed to load-dump and inductive kickback in engine control units. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor output and ground to clamp transients before they reach ADC input or signal conditioner. Use Value: Prevents sensor signal corruption and ADC saturation during 100 V/50 ms load-dump events while maintaining <1.0 µA leakage at 18.8 V standby. |
Use Scenario: Safeguarding gate-source terminals of N-channel power MOSFETs driving solenoids, fuel injectors, or relays in body control modules. IC Role / Device Role / Timing Role: Fast-response clamping device limiting VGS to ≤19.6 V during turn-off voltage spikes induced by inductive loads. Use Value: Avoids gate oxide breakdown and ensures MOSFET longevity under repeated 30.6 A surge conditions with sub-nanosecond response. |
| Infotainment Data Line Guard | ADAS Camera Power Rail Clamp |
Use Scenario: Shielding LVDS or FPD-Link III data lines connecting head unit to display against ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS (CJ ≈ 100 pF typical) placed inline on differential pairs to suppress ±30 kV contact discharge without signal integrity loss. Use Value: Maintains signal rise/fall time integrity while meeting ISO 10605 ESD immunity requirements for infotainment interfaces. |
Use Scenario: Stabilizing 12 V input rail of forward-facing camera modules subjected to ISO 7637-2 Pulse 5a (switching transients). IC Role / Device Role / Timing Role: Primary rail-level TVS absorbing 600 W surges before they propagate to DC-DC converters and image sensors. Use Value: Prevents camera blackouts and resets during ignition transients by clamping rail voltage to 19.6 V within nanoseconds. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ22A | Same VBR (22 V), but lower PPPM (400 W), higher VC (35.5 V), and only 150 °C TJ max | Limited to non-automotive industrial applications due to lack of AEC-Q101 qualification | Select SMAJ22A only if cost sensitivity outweighs automotive reliability and thermal margin requirements |
| SMCJ22A | Higher PPPM (1500 W), larger DO-214AB package (2.3 mm height), same VBR/VC, AEC-Q101 qualified | Requires more PCB area and cannot fit in ultra-low-profile modules like ADAS cameras | Choose SMCJ22A when surge energy exceeds 600 W but board height constraints are relaxed |
Compared with SMAJ22A and SMCJ22A, TA6F22AHM3_A/H uniquely balances AEC-Q101 compliance, 185 °C operation, and 0.95 mm profile-making it the only option for space- and temperature-critical automotive signal line protection where both reliability and miniaturization are mandatory.
Availability
TA6F22AHM3_A/H is available at Aetrix Electronics and suitable for automotive sensor protection, power MOSFET gate clamping, and ADAS camera rail stabilization requiring stable component supply across production lifecycles.
Supply support for TA6F22AHM3_A/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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices, with emphasis on high-reliability, automotive-qualified components.
The TA6F series targets automotive electronics needing high-temperature stability and AEC-Q101 validation, specifically for protecting sensitive signal paths and power stages against ISO 7637 and IEC 61000-4-2 threats.
FAQ
What is the maximum clamping voltage of TA6F22AHM3_A/H at its rated peak pulse current?
The TA6F22AHM3_A/H clamps to 19.6 V at its specified peak pulse current of 30.6 A (10/1000 µs waveform). This value is measured under standardized test conditions and guarantees that protected circuitry downstream will not experience voltages exceeding this level during surge events, ensuring compatibility with 24 V automotive systems and 3.3 V/5 V logic interfaces.
Is TA6F22AHM3_A/H suitable for bidirectional transient suppression?
No, TA6F22AHM3_A/H is a unidirectional TVS diode and only protects against positive-going transients on the cathode side relative to the anode. For bidirectional protection (e.g., AC signal lines or USB), a dedicated bidirectional variant or paired unidirectional devices would be required-TA6F22AHM3_A/H itself does not provide symmetrical clamping.
Does TA6F22AHM3_A/H require a heatsink for standard automotive operation?
No, TA6F22AHM3_A/H is designed for operation without external heatsinking. Its thermal resistance (RθJA = 120–150 °C/W) and 8 W power dissipation rating at 65 °C ambient allow full 600 W surge handling on standard FR4 PCBs with Vishay's recommended minimum pad layout-no heatsink or thermal vias are mandated for typical automotive duty cycles.
What does the "HM3_A/H" suffix indicate in TA6F22AHM3_A/H?
The "HM3" denotes the SlimSMA (DO-221AC) package with halogen-free, RoHS-compliant molding compound; "A" is the revision code; and "/H" specifies the 7-inch tape-and-reel packaging format with 3500 units per reel. This ordering code ensures traceability to Vishay's AEC-Q101 qualification and material compliance documentation.
How does TA6F22AHM3_A/H perform under high-temperature ambient conditions?
TA6F22AHM3_A/H maintains full functionality up to +185 °C junction temperature and derates predictably above 25 °C ambient using the published thermal curves. At 125 °C ambient, its peak pulse power remains >400 W, supporting deployment in under-hood ECUs and transmission control units where traditional TVS diodes fail thermally.
TA6F22AHM3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-221AC, SMA Flat Leads
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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_A/H FAQ
1.How can I place an order for TA6F22AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TA6F22AHM3_A/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 TA6F22AHM3_A/H reliable?
The price and inventory of TA6F22AHM3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TA6F22AHM3_A/H is usually 5 days.
3.What payment methods are accepted for TA6F22AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TA6F22AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TA6F22AHM3_A/H?
TA6F22AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TA6F22AHM3_A/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 TA6F22AHM3_A/H?
For technical support, including TA6F22AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TA6F22AHM3_A/H requirements.
6.How does Aetrix verify that TA6F22AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All TA6F22AHM3_A/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 TA6F22AHM3_A/H meets industry standards.
7.What is the process for return or replacement of TA6F22AHM3_A/H?
All TA6F22AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TA6F22AHM3_A/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 TA6F22AHM3_A/H part is unused and in its original packaging.
Return procedure for TA6F22AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TA6F22AHM3_A/H Tags
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