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Vishay General Semiconductor - Diodes Division TA6F11AHM3/6B
- Part No.:
- TA6F11AHM3/6B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
TA6F11AHM3/6B.pdf
- Description:
- TVS DIODE 9.4VWM 15.6VC DO221AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,391
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Product details
Overview
TA6F11AHM3/6B from Vishay General Semiconductor is a unidirectional surface-mount PAR® Transient Voltage Suppressor (TVS) designed for clamping inductive switching transients and ESD events on signal lines and power rails. It features a breakdown voltage of 10.5–11.6 V, 600 W peak pulse power (10/1000 μs), 15.6 V maximum clamping voltage at 38.5 A, AEC-Q101 qualification, and DO-221AC (SlimSMA) packaging - used in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the TA6F11AHM3/6B datasheet, TA6F11AHM3/6B pinout, TA6F11AHM3/6B application, or TA6F11AHM3/6B equivalent, key selection criteria include unidirectional polarity, 185 °C junction temperature rating, MSL Level 1 moisture sensitivity, 0.95 mm profile height, and IEC 61000-4-2 Level 4 ESD immunity (±8 kV contact / ±15 kV air).
Technical Context
This TVS diode employs passivated anisotropic rectifier technology to deliver stable clamping under high-temperature operation up to TJ = 185 °C. Its DO-221AC package enables automated placement and supports high-reliability automotive applications requiring AEC-Q101 compliance and robust transient suppression.
The device operates with a stand-off voltage of 9.40 V and exhibits ≤2.0 μA reverse leakage at TJ = 150 °C. Thermal resistance is rated at RθJA = 145 °C/W (on FR-4, minimum pad layout) and RθJM = 20 °C/W, enabling effective heat transfer in compact layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VBR) | 10.5–11.6 V at 1.0 mA - defines reliable turn-on threshold for transient clamping |
| Stand-off Voltage (VWM) | 9.40 V - maximum continuous reverse working voltage before leakage exceeds spec |
| Clamping Voltage (VC) | 15.6 V at 38.5 A (10/1000 μs) - limits downstream voltage stress during surge events |
| Peak Pulse Power (PPPM) | 600 W (10/1000 μs) - sustains high-energy transients without failure |
| Junction Temperature (TJ) | −65 to +185 °C - supports under-hood automotive and industrial environments |
| ESD Rating | IEC 61000-4-2 Level 4: ±8 kV contact / ±15 kV air - protects against human-body model discharges |
| Moisture Sensitivity | MSL Level 1 (per J-STD-020) - no bake required prior to reflow; peak solder temp up to 260 °C |
Pinout & Package
Package: DO-221AC (SlimSMA), surface-mount, unidirectional configuration. Cathode denoted by color band. Matte tin-plated terminals, compliant with J-STD-002 and JESD22-B102 solderability standards. HM3 suffix indicates halogen-free, RoHS-compliant, and AEC-Q101 qualified construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to lower-potential side (e.g., GND or return path) in unidirectional clamp configuration |
| Cathode | Current exit terminal; marked with band | Connected to protected line (e.g., signal or supply rail); clamps to anode when voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low profile | 0.95 mm typical height - enables use in space-constrained PCBs and low-profile enclosures |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress |
| Junction passivation | Optimized anisotropic rectifier design - ensures stable VBR and low leakage over lifetime and temperature |
| High thermal capability | TJ max = 185 °C - supports operation near hot components (e.g., power MOSFETs, ECUs) |
| Automated placement ready | DO-221AC geometry and matte tin terminations - compatible with standard SMT pick-and-place and reflow processes |
Applications
| Automotive Sensor Interface | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load-dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and ground to clamp transients before they reach sensitive input circuitry. Use Value: Prevents latch-up or damage to microcontrollers and transceivers while maintaining signal integrity below 9.40 V normal operation. |
Use Scenario: Shielding digital input modules in programmable logic controllers from inductive kickback caused by relay/solenoid switching. IC Role / Device Role / Timing Role: Fast-response transient suppressor on 24 V DC input lines, absorbing 600 W surges without degradation. Use Value: Enables >100,000 switching cycles without parameter drift, validated per AEC-Q101 stress tests. |
| Consumer Appliance Motor Control | Telecom Line Card Surge Protection |
Use Scenario: Safeguarding MCU GPIOs and gate drivers in smart home appliances (e.g., washing machine motor control boards) exposed to brush-commutator noise. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF) unidirectional clamp on low-voltage control signals adjacent to high-current paths. Use Value: Limits voltage overshoot to ≤15.6 V during 38.5 A transients, preserving timing margins and logic thresholds. |
Use Scenario: Front-end protection on Ethernet PHY or RS-485 transceiver lines in network equipment subjected to lightning-induced surges. IC Role / Device Role / Timing Role: First-stage clamping device on differential pairs, coordinated with GDT or polymer PTC for multi-level protection. Use Value: Withstands repeated 600 W pulses while maintaining <2.0 μA leakage at 9.40 V - critical for low-power standby modes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ11A | Same DO-214AC package; 11.1–12.3 V VBR range; 600 W PPPM; no AEC-Q101 qualification | Lacks automotive qualification and 185 °C TJ rating; suitable for commercial-grade industrial designs only | Select SMAJ11A where AEC-Q101 and extended temperature operation are not required; verify layout compatibility with DO-214AC footprint |
| SMCJ11A | DO-214AB package; higher 1500 W PPPM; larger 2.6 mm height; same VBR/VWM specs | Better energy handling but incompatible footprint; requires PCB redesign and higher board area | Choose SMCJ11A only when surge threat level exceeds 600 W; not a drop-in replacement due to mechanical mismatch |
Compared with SMAJ11A and SMCJ11A, TA6F11AHM3/6B uniquely combines AEC-Q101 qualification, 185 °C operation, SlimSMA low-profile packaging, and automotive-grade reliability - making it the preferred choice for space-constrained, high-temperature automotive and industrial edge nodes.
Availability
TA6F11AHM3/6B is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC I/O hardening, and telecom line-card surge suppression requiring stable component supply across long production lifecycles.
Supply support for TA6F11AHM3/6B 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 devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific performance.
The TA6F series belongs to Vishay's PAR® family of high-temperature, AEC-Q101-qualified TVS diodes engineered specifically for automotive and harsh-environment industrial systems demanding consistent clamping behavior up to 185 °C.
FAQ
What is the exact breakdown voltage range for TA6F11AHM3/6B?
The TA6F11AHM3/6B has a guaranteed breakdown voltage (VBR) range of 10.5 V to 11.6 V at a test current of 1.0 mA, measured per the Vishay datasheet Document Number 89939. This range ensures predictable clamping onset across manufacturing lots and temperature extremes, supporting robust design margining in automotive and industrial applications.
Is TA6F11AHM3/6B suitable for bidirectional transient protection?
No - TA6F11AHM3/6B is strictly unidirectional, as confirmed in the "FEATURES" section of the datasheet ("Uni-directional only"). It must be oriented with cathode toward the protected line and anode to reference ground. For bidirectional protection, a separate device such as the TA6F11CA variant would be required.
Does TA6F11AHM3/6B require baking before reflow soldering?
No - TA6F11AHM3/6B is rated MSL Level 1 per J-STD-020, meaning it may be stored indefinitely at ambient conditions and placed directly into reflow without pre-baking. Its maximum peak reflow temperature is 260 °C, fully compatible with standard lead-free solder profiles.
What is the maximum clamping voltage of TA6F11AHM3/6B under surge conditions?
The TA6F11AHM3/6B clamps to a maximum of 15.6 V when subjected to its rated peak pulse current of 38.5 A (10/1000 μs waveform), as specified in the Electrical Characteristics table. This value defines the upper voltage limit imposed on protected circuitry during worst-case transient events.
How does the DO-221AC (SlimSMA) package of TA6F11AHM3/6B differ from standard SMA?
The DO-221AC (SlimSMA) package of TA6F11AHM3/6B measures just 0.95 mm in height - significantly lower than standard SMA (DO-214AC) at ~2.3 mm - while maintaining identical pad layout compatibility. This reduced profile enables use in ultra-thin assemblies without sacrificing surge capability or thermal performance.
TA6F11AHM3/6B 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):
- 9.4V
- Voltage - Breakdown (Min):
- 10.5V
- Voltage - Clamping (Max) @ Ipp:
- 15.6V
- Current - Peak Pulse (10/1000µs):
- 38.5A
- 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)
TA6F11AHM3/6B FAQ
1.How can I place an order for TA6F11AHM3/6B through Aetrix?
Please submit a Request for Quotation (RFQ) for TA6F11AHM3/6B 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 TA6F11AHM3/6B reliable?
The price and inventory of TA6F11AHM3/6B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TA6F11AHM3/6B is usually 5 days.
3.What payment methods are accepted for TA6F11AHM3/6B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TA6F11AHM3/6B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TA6F11AHM3/6B?
TA6F11AHM3/6B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TA6F11AHM3/6B 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 TA6F11AHM3/6B?
For technical support, including TA6F11AHM3/6B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TA6F11AHM3/6B requirements.
6.How does Aetrix verify that TA6F11AHM3/6B is sourced from the original manufacturer or authorized distributors?
All TA6F11AHM3/6B 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 TA6F11AHM3/6B meets industry standards.
7.What is the process for return or replacement of TA6F11AHM3/6B?
All TA6F11AHM3/6B units undergo pre-shipment inspection (PSI). If there is an issue with TA6F11AHM3/6B, 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 TA6F11AHM3/6B part is unused and in its original packaging.
Return procedure for TA6F11AHM3/6B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TA6F11AHM3/6B Tags
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