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Vishay General Semiconductor - Diodes Division TA6L11AHM3/H
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- Part No.:
- TA6L11AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
TA6L11AHM3/H.pdf
- Description:
- 600W,11V 5%, SLIMSMAW PAR
- Quantity:
- Payment:
- Shipping:
Inventory:7,000
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Product details
Overview
TA6L11AHM3/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SlimSMAW (DO-221AD) package, designed for automotive-grade overvoltage protection. It features a 11.0 V nominal breakdown voltage (VBR), 9.40 V stand-off voltage (VWM), 38.5 V maximum clamping voltage at 5.0 A peak pulse current, 600 W peak pulse power (10/1000 µs), and 185 °C maximum junction temperature - enabling robust protection of MOSFETs and sensor signal lines in engine control units.
For engineers reviewing the TA6L11AHM3/H datasheet, TA6L11AHM3/H pinout, TA6L11AHM3/H application, or TA6L11AHM3/H equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal derating behavior, SlimSMAW mechanical dimensions, and direct alternatives for automotive ESD/surge protection design-in.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology with junction passivation optimized for high-reliability operation under thermal stress. Its unidirectional configuration provides low-leakage reverse blocking up to 9.40 V while clamping transients to ≤38.5 V at 5.0 A, supporting fast response to inductive switching spikes in 12 V automotive systems.
The device operates across -65 °C to +185 °C junction temperature range and meets MSL Level 1 per J-STD-020 with 260 °C lead-free reflow compatibility. Its SlimSMAW (DO-221AD) package delivers low-profile mounting and UL 94 V-0 flammability compliance, with matte tin-plated terminals solderable per J-STD-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 10.5 / 11.0 / 11.6 V - ensures reliable turn-on above system operating voltage while avoiding false triggering |
| VWM | 9.40 V - maximum continuous reverse voltage before leakage exceeds 2.0 μA at 25 °C |
| VC @ IPPM | 38.5 V at 5.0 A - limits transient voltage seen by protected ICs during 10/1000 µs surge events |
| PPPM | 600 W - sustains high-energy transients common in automotive load-dump and inductive kick scenarios |
| TJ max | +185 °C - enables placement near hot components (e.g., power stages) without derating loss |
| Package | SlimSMAW (DO-221AD) - 3.60 mm × 2.30 mm footprint with 1.10 mm height for space-constrained PCB layouts |
| AEC-Q101 | Qualified - validated for automotive reliability including temperature cycling, HTRB, and whisker resistance (JESD201 Class 2) |
Pinout & Package
SlimSMAW (DO-221AD) is a two-terminal surface-mount package with cathode indicated by a color band on the top surface. Anode and cathode leads are symmetrically formed for automated placement and reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to protected circuit ground or low-side reference | Provides low-impedance path to ground during transient clamping; must be routed with minimal inductance |
| Cathode | Current exit terminal in forward bias; connected to line being protected (e.g., sensor supply or signal) | Color band identifies polarity; connects to vulnerable node requiring overvoltage limiting |
Key Features
| Feature | Design Value |
|---|---|
| High-temperature junction capability | 185 °C max TJ supports under-hood deployment without thermal derating penalties |
| AEC-Q101 qualification + JESD201 Class 2 | Validated for automotive production use with whisker-resistant matte tin plating |
| Low-profile SlimSMAW package | 1.10 mm height enables stacking with adjacent components in compact ECUs |
| Optimized junction passivation | Reduces parameter drift and leakage under prolonged thermal stress and humidity exposure |
| 600 W peak pulse power (10/1000 µs) | Handles ISO 7637-2 Pulse 1, 2a, 3a/b and ISO 16750-2 load-dump surges |
Applications
| Automotive Engine Control Unit (ECU) | Body Control Module (BCM) Power Input |
|---|---|
Use Scenario: Protects microcontroller I/O pins and LIN bus transceivers from inductive switching noise generated by fuel injector drivers. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and chassis ground to clamp sub-100 ns transients. Use Value: Clamps to ≤38.5 V at 5.0 A, preventing latch-up or gate oxide damage in 3.3 V/5 V logic interfaces. | Use Scenario: Shields 12 V power rail inputs against battery load-dump surges (up to 35 V, 400 ms) and jump-start transients. IC Role / Device Role / Timing Role: Primary front-end surge suppression before DC-DC converter input stage. Use Value: Withstands 600 W pulses and operates reliably up to 185 °C ambient, matching BCM under-dash thermal profiles. |
| Automotive Sensor Signal Line Protection | Infotainment System USB/UART Interface |
Use Scenario: Guards analog outputs of pressure/temperature sensors connected to ADC inputs against ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS (CJ ≈ 100–200 pF typical) placed directly at connector entry point. Use Value: 9.40 V VWM avoids interference with 8–10 V sensor output range while clamping ESD to safe levels. | Use Scenario: Suppresses fast-rising transients on UART lines linking head unit to telematics module in vehicle infotainment architecture. IC Role / Device Role / Timing Role: Unidirectional clamping device on TX/RX lines referenced to local ground plane. Use Value: Meets AEC-Q101 requirements and maintains signal integrity due to low leakage (<2.0 μA at VWM) and stable VBR tempco (0.067 %/°C). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11A-HF | Same VBR (11.1–12.3 V), but SMB (DO-214AA) package - 4.5 mm × 3.9 mm vs. SlimSMAW's 3.6 mm × 2.3 mm | Higher RθJA (140 °C/W vs. 120 °C/W typ.) limits power handling in thermally dense layouts | Select when board space allows larger footprint and legacy SMB tooling is in place |
| TPSMD11A | Identical VBR/VWM/VC, but not AEC-Q101 qualified; rated only to 150 °C TJ | Lacks whisker test compliance and automotive qualification documentation | Acceptable for industrial or consumer designs where automotive reliability is not mandated |
Compared with SMBJ11A-HF and TPSMD11A, TA6L11AHM3/H delivers superior thermal performance in constrained spaces and full AEC-Q101 validation - making it the preferred choice for new automotive designs requiring long-term reliability under thermal cycling and vibration stress.
Availability
TA6L11AHM3/H is available at Aetrix Electronics and suitable for automotive engine control units, body control modules, sensor interface protection, and infotainment system surge suppression requiring stable component supply and full AEC-Q101 traceability.
Supply support for TA6L11AHM3/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 is a global leader in discrete semiconductors, specializing in diodes, rectifiers, TVS devices, and optoelectronics with emphasis on high-reliability and automotive-grade performance.
The TA6L series belongs to Vishay's PAR® family of high-power, high-temperature TVS diodes engineered specifically for harsh-environment automotive electronics - delivering stable clamping behavior across extended temperature ranges and rigorous qualification testing.
FAQ
What is the maximum clamping voltage of TA6L11AHM3/H at its rated peak pulse current?
The TA6L11AHM3/H has a maximum clamping voltage (VC) of 38.5 V at its rated peak pulse current of 5.0 A under the standard 10/1000 µs waveform. This value is measured per Figure 3 in the official Vishay datasheet (Document Number: 87415) and defines the upper voltage limit imposed on protected circuitry during surge events. The TA6L11AHM3/H maintains this clamping performance across its full operating temperature range.
Is TA6L11AHM3/H qualified to AEC-Q101, and what does the HM3 suffix indicate?
Yes, TA6L11AHM3/H is AEC-Q101 qualified. The HM3 suffix denotes halogen-free, RoHS-compliant construction with matte tin-plated leads that meet JESD201 Class 2 whisker resistance requirements. This qualification confirms the device has passed stress tests including high-temperature reverse bias, temperature cycling, and mechanical shock - validating its suitability for automotive production applications.
What is the thermal resistance junction-to-ambient (RθJA) for TA6L11AHM3/H, and how does it affect layout?
The typical RθJA for TA6L11AHM3/H is 120 °C/W when mounted on a standard FR4 PCB with 2 oz. copper per JEDEC 51-2A. This relatively low thermal resistance enables effective heat dissipation without requiring large copper pours - though optimal performance requires at least the recommended mounting pad layout from the datasheet. Layouts should minimize trace length between cathode and protected node to preserve clamping speed.
Does TA6L11AHM3/H support bidirectional transient suppression?
No, TA6L11AHM3/H is unidirectional only. Its electrical characteristics - including specified VBR, VWM, and clamping behavior - apply solely to reverse-bias operation. For bidirectional protection, a separate device such as the TA6L11CA series would be required. The cathode band marking on the TA6L11AHM3/H package must be correctly oriented toward the line being protected.
What is the leakage current specification for TA6L11AHM3/H at its stand-off voltage?
At 25 °C, TA6L11AHM3/H exhibits a maximum reverse leakage current (IR) of 2.0 μA at its 9.40 V stand-off voltage (VWM). At elevated temperature (TJ = 150 °C), leakage increases to a maximum of 5.0 μA. These values ensure minimal power loss and signal interference in always-on automotive circuits while maintaining effective transient response.
TA6L11AHM3/H 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:
- Active
- 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:
- SlimSMAW (DO-221AD)
TA6L11AHM3/H FAQ
1.How can I place an order for TA6L11AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TA6L11AHM3/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 TA6L11AHM3/H reliable?
The price and inventory of TA6L11AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TA6L11AHM3/H is usually 5 days.
3.What payment methods are accepted for TA6L11AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TA6L11AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TA6L11AHM3/H?
TA6L11AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TA6L11AHM3/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 TA6L11AHM3/H?
For technical support, including TA6L11AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TA6L11AHM3/H requirements.
6.How does Aetrix verify that TA6L11AHM3/H is sourced from the original manufacturer or authorized distributors?
All TA6L11AHM3/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 TA6L11AHM3/H meets industry standards.
7.What is the process for return or replacement of TA6L11AHM3/H?
All TA6L11AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with TA6L11AHM3/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 TA6L11AHM3/H part is unused and in its original packaging.
Return procedure for TA6L11AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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