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Vishay General Semiconductor - Diodes Division TA6F27AHM3/6B
- Part No.:
- TA6F27AHM3/6B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
TA6F27AHM3/6B.pdf
- Description:
- TVS DIODE 23.1VWM 37.5VC DO221AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,229
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Product details
Overview
TA6F27AHM3/6B from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) designed for clamping inductive switching surges and ESD transients on power and signal lines. It features a breakdown voltage of 25.7–28.4 V at 1 mA, clamps to ≤37.5 V at 16.0 A (10/1000 μs), delivers 600 W peak pulse power, operates up to 185 °C junction temperature, and is AEC-Q101 qualified for automotive electronics protection.
For engineers reviewing the TA6F27AHM3/6B datasheet, TA6F27AHM3/6B pinout, TA6F27AHM3/6B application, or TA6F27AHM3/6B equivalent, this page provides verified package dimensions, clamping performance under standardized surge waveforms, thermal resistance data, ESD immunity per IEC 61000-4-2 Level 4, and direct alternatives with documented voltage and power trade-offs.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology optimized for high-temperature stability and low-profile mounting. Its DO-221AC (SlimSMA) package enables automated placement and achieves 145 °C/W junction-to-ambient thermal resistance on FR-4 board with minimum recommended pad layout.
The device operates exclusively in unidirectional mode with a color-band cathode marking. It meets MSL Level 1 per J-STD-020, supports 260 °C lead-free reflow, and delivers 6 W steady-state power dissipation at 65 °C case temperature when mounted on an infinite heat sink.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 25.7–28.4 V at 1 mA - defines minimum clamping threshold under DC stress |
| Stand-off Voltage VWM | 23.1 V - maximum continuous reverse voltage before leakage exceeds 1 μA |
| Peak Pulse Power PPPM | 600 W (10/1000 μs) - sustains industrial-grade surge events without failure |
| Clamping Voltage VC | ≤37.5 V at 16.0 A - limits downstream IC voltage during transient suppression |
| Junction Temperature Range | −65 °C to +185 °C - supports under-hood automotive and high-reliability industrial use |
| ESD Rating | IEC 61000-4-2 Level 4: 15 kV air / 8 kV contact - protects against human-body model discharges |
| Thermal Resistance RθJA | 145 °C/W - determines required PCB copper area for thermal management on standard FR-4 |
Pinout & Package
DO-221AC (SlimSMA) package: ultra-low profile (0.95 mm typical height), matte tin-plated terminals, halogen-free, RoHS-compliant, and AEC-Q101 qualified. Cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to protected line's lower-potential side (e.g., ground or return path) |
| Cathode | Current exit terminal during forward conduction; marked with color band | Connected to protected line's higher-potential side (e.g., supply rail or signal line) |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low profile height | 0.95 mm typical - enables use in space-constrained modules and thin consumer devices |
| Junction passivation design | Optimized anisotropic rectifier structure - improves long-term reliability under thermal cycling |
| AEC-Q101 qualification | Validated for automotive-grade stress testing - supports deployment in engine control, ADAS, and infotainment systems |
| MSL Level 1 rating | Compatible with standard 260 °C lead-free reflow - eliminates moisture sensitivity handling requirements |
| Uni-directional clamping | No reverse conduction above VWM - prevents unintended current flow in DC-biased circuits |
Applications
| Automotive Power Line Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 24 V CAN bus power rails from load-dump and alternator surge transients in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between battery input and DC-DC converter input stage. Use Value: Limits transient voltage to ≤37.5 V, preventing damage to downstream 40 V-rated regulators and microcontrollers. |
Use Scenario: Shielding analog output lines of pressure sensors in factory automation PLC modules from ESD and relay-switching noise. IC Role / Device Role / Timing Role: Low-capacitance TVS connected between signal and ground near sensor connector. Use Value: Clamps 8 kV contact ESD pulses within nanoseconds while adding <1 pF parasitic capacitance to preserve signal integrity. |
| Consumer USB Power Input Protection | Telecom DC Feeder Protection |
Use Scenario: Safeguarding USB-C PD input stages in portable monitors against hot-plug and cable-induced surges. IC Role / Device Role / Timing Role: Standoff-rated TVS on VBUS line upstream of buck controller and port controller. Use Value: Withstands 600 W 10/1000 μs surges while maintaining 23.1 V working voltage compatible with 20 V PD profiles. |
Use Scenario: Protecting -48 V DC feeder lines in telecom base station remote radio units from lightning-induced surges. IC Role / Device Role / Timing Role: Primary clamping device on power input before DC-DC isolation stage. Use Value: Operates reliably at −65 °C to +185 °C ambient, enabling outdoor cabinet deployment without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ28A | Higher VBR (26.6–29.4 V), same DO-214AC package, 400 W PPPM | Limited to non-automotive industrial use due to lack of AEC-Q101 qualification | Select when cost sensitivity outweighs automotive qualification requirement and 400 W surge margin is sufficient |
| TPSMF28A | Same VBR range (26.6–29.4 V), DO-214AC, 1500 W PPPM, but 10× higher leakage (5 μA at VWM) | Better surge handling but unsuitable for low-power sensor bias networks due to leakage impact | Prefer where high-energy transients dominate and circuit can tolerate elevated reverse leakage |
Compared with SMAJ28A and TPSMF28A, the TA6F27AHM3/6B offers AEC-Q101 qualification and tighter VBR tolerance (±5.5%) at 600 W rating, making it optimal for automotive and precision industrial designs where qualification and consistent clamping behavior are mandatory.
Availability
TA6F27AHM3/6B is available at Aetrix Electronics and suitable for automotive ECU power protection, industrial sensor interface hardening, and telecom DC feeder surge suppression requiring stable component supply across multi-year production cycles.
Supply support for TA6F27AHM3/6B 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 high-reliability, high-temperature, and automotive-qualified components.
The TA6F27AHM3/6B belongs to Vishay's PAR® family of surface-mount TVS diodes, engineered specifically for robust transient suppression in automotive and industrial environments where thermal stability and AEC-Q101 compliance are critical.
FAQ
What is the exact breakdown voltage range for TA6F27AHM3/6B?
The TA6F27AHM3/6B has a guaranteed breakdown voltage (VBR) range of 25.7 V to 28.4 V at 1 mA test current, measured per the Vishay datasheet Document Number 89939. This range reflects manufacturing tolerance and ensures reliable clamping onset across all units of the TA6F27AHM3/6B lot.
Is TA6F27AHM3/6B suitable for automotive applications?
Yes, the TA6F27AHM3/6B is AEC-Q101 qualified and rated for operation from −65 °C to +185 °C junction temperature, making it suitable for under-hood and chassis-mounted automotive electronics including body control modules, ADAS sensors, and powertrain subsystems where transient immunity is critical.
What does the "HM3/6B" suffix indicate in TA6F27AHM3/6B?
The "HM3" denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification and JESD201 Class 2 whisker resistance; "6B" specifies packaging in 13-inch diameter plastic tape and reel with 14,000 units per reel - a standard logistics configuration for high-volume SMT assembly lines using the TA6F27AHM3/6B.
How does TA6F27AHM3/6B compare to TA6F24A in clamping performance?
The TA6F27AHM3/6B clamps to ≤37.5 V at 16.0 A (10/1000 μs), whereas TA6F24A clamps to ≤33.2 V at 18.1 A. The higher VBR of TA6F27AHM3/6B shifts clamping upward to match 24 V system overvoltage margins, while maintaining identical 600 W PPPM rating and DO-221AC footprint.
Can TA6F27AHM3/6B be used in bidirectional configurations?
No, the TA6F27AHM3/6B is strictly unidirectional, as confirmed by Vishay documentation. It conducts only when cathode voltage exceeds anode voltage by ≥VBR; reverse polarity operation is not supported. For bidirectional protection, a separate back-to-back pair or dedicated bidirectional TVS such as SMBJ28CA must be used instead of TA6F27AHM3/6B.
TA6F27AHM3/6B 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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 23.1V
- Voltage - Breakdown (Min):
- 25.7V
- Voltage - Clamping (Max) @ Ipp:
- 37.5V
- Current - Peak Pulse (10/1000µs):
- 16A
- 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)
TA6F27AHM3/6B FAQ
1.How can I place an order for TA6F27AHM3/6B through Aetrix?
Please submit a Request for Quotation (RFQ) for TA6F27AHM3/6B 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 TA6F27AHM3/6B reliable?
The price and inventory of TA6F27AHM3/6B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TA6F27AHM3/6B is usually 5 days.
3.What payment methods are accepted for TA6F27AHM3/6B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TA6F27AHM3/6B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TA6F27AHM3/6B?
TA6F27AHM3/6B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TA6F27AHM3/6B 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 TA6F27AHM3/6B?
For technical support, including TA6F27AHM3/6B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TA6F27AHM3/6B requirements.
6.How does Aetrix verify that TA6F27AHM3/6B is sourced from the original manufacturer or authorized distributors?
All TA6F27AHM3/6B 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 TA6F27AHM3/6B meets industry standards.
7.What is the process for return or replacement of TA6F27AHM3/6B?
All TA6F27AHM3/6B units undergo pre-shipment inspection (PSI). If there is an issue with TA6F27AHM3/6B, 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 TA6F27AHM3/6B part is unused and in its original packaging.
Return procedure for TA6F27AHM3/6B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TA6F27AHM3/6B Tags
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