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Vishay General Semiconductor - Diodes Division TA6F15AHM3/6B
- Part No.:
- TA6F15AHM3/6B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
TA6F15AHM3/6B.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC DO221AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,926
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Product details
Overview
TA6F15AHM3/6B 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 14.3–15.8 V breakdown voltage (VBR), 12.8 V stand-off voltage (VWM), 600 W peak pulse power (10/1000 µs), 21.2 V maximum clamping voltage at 28.3 A, and operates up to 185 °C junction temperature. It is used to protect MOSFETs and sensor ICs in automotive body control modules.
For engineers reviewing the TA6F15AHM3/6B datasheet, TA6F15AHM3/6B pinout, TA6F15AHM3/6B application, or TA6F15AHM3/6B equivalent, this page delivers verified electrical specs, DO-221AC package dimensions, AEC-Q101 qualification status, IEC 61000-4-2 level 4 ESD immunity, and real-world protection use cases for industrial and automotive electronics design.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for high-temperature reliability and low-profile mounting. Its unidirectional architecture provides forward conduction path during overvoltage events while maintaining low leakage (<1 µA at 12.8 V, TJ = 150 °C) and stable clamping performance across -65 °C to +185 °C operating range.
The device is rated for 600 W peak pulse power under 10/1000 µs waveform, with thermal resistance of 145 °C/W (junction-to-ambient, FR-4 board) and 20 °C/W (junction-to-mount). It meets MSL Level 1 per J-STD-020 and passes JESD201 Class 2 whisker testing on matte tin-plated leads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 14.3 V / 15.8 V - Ensures reliable triggering above normal 12 V rail operation while avoiding false trips |
| VWM | 12.8 V - Maximum continuous reverse voltage before significant leakage begins |
| IPPM (10/1000 µs) | 28.3 A - Peak surge current it can safely shunt without degradation |
| VC @ IPPM | 21.2 V - Clamped voltage seen by protected circuit during worst-case surge |
| TJ max | +185 °C - Enables placement near hot components (e.g., power MOSFETs, engine ECUs) |
| ESD rating | IEC 61000-4-2 Level 4: ±8 kV contact / ±15 kV air - Validated immunity for automotive interior interfaces |
| Package | DO-221AC (SlimSMA) - 0.95 mm profile enables dense PCB layouts and automated SMT placement |
Pinout & Package
DO-221AC (SlimSMA) package: cathode-indicating band on top surface; anode and cathode terminals formed as coplanar gull-wing leads; overall height 0.95 mm; footprint compatible with standard SMA reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction (surge event) | Connected to protected line (e.g., LIN bus, sensor supply); must be routed with low-inductance trace |
| Cathode | Current exit point during clamping; referenced to system ground or return path | Must connect directly to low-impedance ground plane to minimize clamping overshoot |
Key Features
| Feature | Design Value |
|---|---|
| Uni-directional clamping | Enables integration on DC-biased lines (e.g., 12 V sensor supplies) without forward conduction during normal operation |
| AEC-Q101 qualification | Validated for automotive under-hood and chassis applications requiring zero defect reliability over lifetime |
| 185 °C junction rating | Supports operation in high-temperature zones (e.g., near power converters, motor drivers) without derating |
| Low-profile SlimSMA | 0.95 mm height allows stacking under connectors or shielding cans in space-constrained modules |
| MSL Level 1 | Eliminates bake requirements prior to reflow; compatible with standard lead-free assembly processes |
Applications
| Automotive Body Control Module | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting LIN bus transceivers and door module microcontrollers from load dump and inductive kickback in 12 V vehicle networks. IC Role / Device Role / Timing Role: Transient voltage suppressor placed at connector entry point to clamp surges before reaching communication ICs. Use Value: Prevents latch-up or permanent damage to LIN transceivers during battery disconnect/reconnect events and solenoid switching. |
Use Scenario: Safeguarding analog output lines (4–20 mA) of pressure/temperature sensors in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Fast-response clamping device on sensor output traces to absorb ESD and cable discharge events. Use Value: Maintains signal integrity and prevents false readings or controller resets caused by field-induced transients. |
| Automotive HVAC Actuator Driver | Consumer Appliance Motor Control Board |
Use Scenario: Shielding H-bridge gate drivers and position feedback circuits in HVAC blend door actuators exposed to motor commutation noise. IC Role / Device Role / Timing Role: TVS placed across motor coil terminals and driver supply pins to suppress back-EMF spikes. Use Value: Extends driver IC lifetime and eliminates intermittent faults due to repetitive voltage overshoot on 12 V supply rails. |
Use Scenario: Protecting MCU GPIOs and optocoupler inputs on washing machine main control boards from relay contact bounce and pump motor switching noise. IC Role / Device Role / Timing Role: Unidirectional TVS on isolated control signals to prevent logic-level corruption during high-current switching. Use Value: Reduces field failure rate linked to MCU reset or corrupted state transitions during appliance cycle changes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ15A-HF | Same VWM (12.8 V), but lower PPPM (400 W), higher VC (24.4 V), non-AEC-Q101 | Limited to commercial-grade industrial equipment; not qualified for automotive under-hood use | Select when cost sensitivity outweighs automotive qualification and higher clamping voltage is acceptable |
| 1.5SMC15A | Same VBR range, but larger DO-214AB package (2.79 mm height), higher RθJA (160 °C/W), no MSL Level 1 rating | Requires more PCB area and thermal relief; unsuitable for ultra-thin modules or high-volume SMT lines with strict MSL compliance | Choose only if existing layout uses DO-214AB footprint and thermal constraints allow higher junction rise |
Compared with SMAJ15A-HF and 1.5SMC15A, TA6F15AHM3/6B delivers superior automotive readiness (AEC-Q101), tighter thermal management (145 °C/W), lower profile (0.95 mm), and lower clamping voltage (21.2 V vs. ≥24.4 V), making it optimal for next-generation compact, high-reliability 12 V systems.
Availability
TA6F15AHM3/6B is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, and consumer appliance motor control boards requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant surge protection.
Supply support for TA6F15AHM3/6B 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 high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The TA6F series belongs to Vishay's PAR® family of surface-mount TVS diodes engineered specifically for high-temperature, high-reliability transient suppression in automotive and harsh-environment electronics.
FAQ
What is the clamping voltage of TA6F15AHM3/6B at its rated peak pulse current?
The TA6F15AHM3/6B has a maximum clamping voltage (VC) of 21.2 V when subjected to its rated peak pulse current of 28.3 A under the standard 10/1000 µs waveform. This value is measured at TA = 25 °C and ensures downstream ICs see less than 21.2 V during surge events, protecting 24 V-tolerant interfaces and logic inputs. The TA6F15AHM3/6B maintains this clamping performance across its full operating temperature range.
Is TA6F15AHM3/6B qualified for automotive applications?
Yes, TA6F15AHM3/6B is AEC-Q101 qualified and rated for junction temperatures up to +185 °C, making it suitable for under-hood and chassis-mounted automotive electronics. It also meets IEC 61000-4-2 Level 4 ESD immunity and MSL Level 1 per J-STD-020 - all critical requirements for modern automotive ECUs. The TA6F15AHM3/6B is explicitly listed in Vishay's AEC-Q101 certified product portfolio.
What does the "HM3/6B" suffix indicate in TA6F15AHM3/6B?
The "HM3" suffix denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification and JESD201 Class 2 whisker resistance. The "6B" indicates packaging in 13-inch diameter plastic tape and reel, with a base quantity of 14,000 units - optimized for high-volume SMT assembly lines. This distinguishes TA6F15AHM3/6B from variants like HM3/6A (7-inch reel, 3,500 units) or HM3_A/I (alternate reel coding).
Can TA6F15AHM3/6B replace older SMAJ15A devices in existing designs?
TA6F15AHM3/6B is not a direct pin-compatible replacement for SMAJ15A due to different package outlines: TA6F15AHM3/6B uses DO-221AC (SlimSMA), while SMAJ15A uses DO-214AC (SMA). Though both are unidirectional 15 V TVS diodes, the SlimSMA footprint requires PCB land pattern revision. However, TA6F15AHM3/6B offers superior specs: lower clamping voltage (21.2 V vs. 24.4 V), AEC-Q101 qualification, and 0.95 mm height - justifying redesign where space and reliability are critical.
What is the maximum leakage current of TA6F15AHM3/6B at its stand-off voltage?
At its stand-off voltage (VWM) of 12.8 V and ambient temperature of 25 °C, the TA6F15AHM3/6B exhibits a maximum reverse leakage current (IR) of 1.0 µA. At elevated junction temperature (TJ = 150 °C), leakage remains ≤5.0 µA - ensuring minimal power loss and signal interference on always-on sensor or communication lines. This low leakage is confirmed in Vishay's official electrical characteristics table for TA6F15A.
TA6F15AHM3/6B 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):
- 12.8V
- Voltage - Breakdown (Min):
- 14.3V
- Voltage - Clamping (Max) @ Ipp:
- 21.2V
- Current - Peak Pulse (10/1000µs):
- 28.3A
- 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)
TA6F15AHM3/6B FAQ
1.How can I place an order for TA6F15AHM3/6B through Aetrix?
Please submit a Request for Quotation (RFQ) for TA6F15AHM3/6B 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 TA6F15AHM3/6B reliable?
The price and inventory of TA6F15AHM3/6B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TA6F15AHM3/6B is usually 5 days.
3.What payment methods are accepted for TA6F15AHM3/6B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TA6F15AHM3/6B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TA6F15AHM3/6B?
TA6F15AHM3/6B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TA6F15AHM3/6B 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 TA6F15AHM3/6B?
For technical support, including TA6F15AHM3/6B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TA6F15AHM3/6B requirements.
6.How does Aetrix verify that TA6F15AHM3/6B is sourced from the original manufacturer or authorized distributors?
All TA6F15AHM3/6B 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 TA6F15AHM3/6B meets industry standards.
7.What is the process for return or replacement of TA6F15AHM3/6B?
All TA6F15AHM3/6B units undergo pre-shipment inspection (PSI). If there is an issue with TA6F15AHM3/6B, 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 TA6F15AHM3/6B part is unused and in its original packaging.
Return procedure for TA6F15AHM3/6B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TA6F15AHM3/6B Tags
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