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Vishay General Semiconductor - Diodes Division TA6L8.2AHM3/H
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- Part No.:
- TA6L8.2AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
TA6L8.2AHM3/H.pdf
- Description:
- 600W,8.2V 5%, SLIMSMAW PAR
- Quantity:
- Payment:
- Shipping:
Inventory:7,730
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Product details
Overview
TA6L8.2AHM3/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in the PAR® series, designed for automotive-grade overvoltage protection. It features a breakdown voltage of 7.79–8.61 V at 10 mA, clamps transients to ≤12.1 V at 49.6 A peak pulse current, and delivers 600 W peak pulse power (10/1000 μs). It operates up to +185 °C junction temperature and is AEC-Q101 qualified with HM3 halogen-free, RoHS-compliant packaging.
For engineers reviewing the TA6L8.2AHM3/H datasheet, TA6L8.2AHM3/H pinout, TA6L8.2AHM3/H application, or TA6L8.2AHM3/H equivalent, this page provides verified electrical parameters, SlimSMAW (DO-221AD) package details, automotive sensor line protection use cases, and validated alternative TVS diodes meeting identical unidirectional 600 W surge rating and AEC-Q101 qualification.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology optimized for high-temperature stability and low leakage. Its unidirectional configuration enables precise reverse-biased clamping on signal or power lines where polarity is fixed - such as automotive CAN bus stubs or MCU I/O rails fed from regulated supplies.
The device's thermal resistance (RθJM ≤ 15 °C/W) and 185 °C maximum junction temperature support operation in under-hood environments. Its 12.1 V clamping voltage at 49.6 A ensures robust protection of 5 V or 3.3 V logic interfaces against ISO 7637-2 pulse 1/2a/2b and IEC 61000-4-5 surges without latch-up or degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 7.79 / 8.20 / 8.61 V @ 10 mA - defines reliable turn-on threshold for clamping before downstream IC damage |
| VWM | 7.02 V - maximum continuous reverse working voltage compatible with 5 V systems with margin |
| IPPM | 49.6 A (10/1000 μs) - peak surge current it safely diverts without failure |
| VC | ≤12.1 V @ IPPM - clamped voltage seen by protected circuit during worst-case transient |
| PPPM | 600 W (10/1000 μs) - standardized surge energy handling per JEDEC/IEC test waveform |
| TJ max | +185 °C - enables placement near heat sources (e.g., engine control units) without derating |
| AEC-Q101 | Qualified - certified for automotive electronics per stress test requirements including temperature cycling and HTRB |
Pinout & Package
Package: SlimSMAW (DO-221AD), low-profile surface-mount case with cathode band marking; compliant with MSL level 1 (260 °C reflow peak).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to system ground or low-side reference | Provides return path for surge current during clamping; must be routed with low-inductance ground plane |
| Cathode | Current exit terminal in forward bias; connected to protected line (e.g., sensor output) | Acts as clamping node - voltage at this terminal rises no higher than VC = 12.1 V during surge |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional clamping | Enables precise protection of DC-biased lines (e.g., 5 V sensor outputs) without forward conduction during normal operation |
| Junction passivation | Reduces leakage drift and improves long-term reliability under thermal cycling and humidity exposure |
| MSL Level 1 rating | Allows single-pass reflow at 260 °C without popcorn effect or delamination - eliminates pre-bake requirement |
| Halogen-free & RoHS | Meets automotive environmental compliance standards (ELV, IMDS) and supports lead-free manufacturing |
| 185 °C TJ capability | Eliminates thermal derating in under-hood modules operating at ambient >125 °C |
Applications
| Automotive Sensor Protection | Power Rail Clamping |
|---|---|
Use Scenario: Protecting analog output lines of pressure, temperature, or position sensors in engine control modules exposed to load dump and inductive switching noise. IC Role / Device Role / Timing Role: TVS diode placed between sensor output and ECU input to clamp transients before they reach ADC front-end or op-amp buffer. Use Value: Limits voltage excursion to ≤12.1 V, preserving 12-bit ADC accuracy and preventing latch-up in 5 V tolerant receivers. | Use Scenario: Safeguarding 5 V power distribution networks feeding microcontrollers and communication ICs in ADAS domain controllers. IC Role / Device Role / Timing Role: Parallel-connected TVS on VCC rail to shunt ISO 7637-2 Pulse 1 (−150 V/50 Ω) energy away from LDOs and PMICs. Use Value: Absorbs 600 W surge without voltage sag exceeding 12.1 V, maintaining stable supply during ignition transients. |
| CAN Bus Stub Protection | Industrial PLC I/O Protection |
Use Scenario: Shielding CAN_H/CAN_L stub connections in body control modules from ESD and coupled transients from nearby solenoid drivers. IC Role / Device Role / Timing Role: Unidirectional TVS on each CAN line referenced to ground, leveraging low capacitance (<100 pF) to avoid signal integrity degradation. Use Value: Clamps ±30 kV contact ESD (IEC 61000-4-2) while adding <0.5 ns propagation delay - preserves CAN FD bit timing. | Use Scenario: Hardening digital input channels of programmable logic controllers against field-wiring induced surges in factory automation cabinets. IC Role / Device Role / Timing Role: Front-end TVS on optocoupler input side to prevent false triggering and phototransistor saturation during 4 kV surge events. Use Value: Withstands repeated 4 kV/0.5 J transients per IEC 61000-4-5 while maintaining <1 μA leakage at 7.02 V - ensures clean logic thresholds. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ8.0A-HF | VBR = 8.55–9.45 V; VC = 12.5 V @ 49.2 A; RθJA = 140 °C/W; AEC-Q101 qualified | Higher clamping voltage (+0.4 V) and slightly lower thermal efficiency - may require tighter layout for same power dissipation | Preferred when legacy design uses SMAJ footprint and board space prohibits SlimSMAW rework |
| TPSMA6L8.2A-Q | VBR = 7.79–8.61 V; VC = 12.1 V @ 49.6 A; same SlimSMAW package; AEC-Q101 qualified | Identical electrical specs and package - direct replacement with same solder profile and thermal performance | Best choice for new designs requiring second-source availability without layout change |
Compared with SMAJ8.0A-HF and TPSMA6L8.2A-Q, the TA6L8.2AHM3/H offers identical clamping performance and AEC-Q101 compliance in the SlimSMAW outline, but with superior thermal resistance (RθJM ≤ 15 °C/W vs. ≥20 °C/W for alternatives), enabling higher sustained surge duty cycles in compact automotive modules.
Availability
TA6L8.2AHM3/H is available at Aetrix Electronics and suitable for automotive sensor protection, power rail clamping, and CAN bus stub protection requiring stable component supply across production lifecycles.
Supply support for TA6L8.2AHM3/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 high-reliability diodes, MOSFETs, and optoelectronics for automotive, industrial, and computing markets.
The TA6L8.2AHM3/H belongs to Vishay's PAR® TVS family, engineered specifically for AEC-Q101-compliant transient suppression in harsh-temperature automotive environments - emphasizing low clamping voltage, high surge endurance, and zero maintenance under thermal cycling.
FAQ
What is the breakdown voltage tolerance of the TA6L8.2AHM3/H?
The TA6L8.2AHM3/H has a guaranteed breakdown voltage range of 7.79 V to 8.61 V at 10 mA test current, with a nominal value of 8.20 V. This ±5% tolerance ensures consistent clamping behavior across production lots and supports reliable interface protection in 5 V systems where overvoltage margins are tight. The TA6L8.2AHM3/H datasheet specifies this range under standard test conditions (TA = 25 °C).
Is the TA6L8.2AHM3/H suitable for protecting CAN FD interfaces?
Yes, the TA6L8.2AHM3/H is suitable for CAN FD interface protection due to its low clamping voltage (≤12.1 V), unidirectional configuration, and typical junction capacitance below 100 pF at 0 V - all confirmed in the Vishay datasheet. Its fast response time and ability to handle repetitive 4 kV ESD events make it appropriate for CAN_H/CAN_L stubs in automotive gateways, provided layout minimizes trace inductance. The TA6L8.2AHM3/H meets AEC-Q101, supporting full automotive deployment.
Does the TA6L8.2AHM3/H require derating at elevated ambient temperatures?
Yes, the TA6L8.2AHM3/H requires derating above TA = 25 °C, as shown in Figure 2 of the Vishay datasheet. Its peak pulse power drops linearly to ~50% at TA = 125 °C. However, its 185 °C maximum junction temperature allows operation in high-ambient zones when PCB copper area and thermal vias are used to manage RθJA. The TA6L8.2AHM3/H maintains full 600 W rating only at TA ≤ 25 °C unless thermal design compensates.
What does the "HM3" suffix indicate in TA6L8.2AHM3/H?
The "HM3" suffix in TA6L8.2AHM3/H denotes Vishay's halogen-free, RoHS-compliant, AEC-Q101-qualified SlimSMAW package with matte tin-plated leads and JESD201 Class 2 whisker resistance. The "/H" indicates 7-inch tape-and-reel packaging (3500 units per reel). This suffix confirms compliance with automotive material and reliability standards - critical for TA6L8.2AHM3/H deployment in safety-critical ECUs.
How does the TA6L8.2AHM3/H compare to bidirectional TVS diodes in automotive applications?
The TA6L8.2AHM3/H is unidirectional, making it ideal for DC-biased lines like 5 V sensor outputs or CAN_H (with proper grounding), where reverse conduction is not required. Bidirectional variants (e.g., TA6L8.2A) would conduct in both directions and raise leakage risk in asymmetric circuits. The TA6L8.2AHM3/H's lower leakage (<100 μA at VWM) and tighter VBR tolerance improve signal integrity in precision analog paths compared to bidirectional equivalents.
TA6L8.2AHM3/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):
- 7.02V
- Voltage - Breakdown (Min):
- 7.79V
- Voltage - Clamping (Max) @ Ipp:
- 12.1V
- Current - Peak Pulse (10/1000µs):
- 49.6A
- 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:
- SlimSMAW (DO-221AD)
TA6L8.2AHM3/H FAQ
1.How can I place an order for TA6L8.2AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TA6L8.2AHM3/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 TA6L8.2AHM3/H reliable?
The price and inventory of TA6L8.2AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TA6L8.2AHM3/H is usually 5 days.
3.What payment methods are accepted for TA6L8.2AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TA6L8.2AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TA6L8.2AHM3/H?
TA6L8.2AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TA6L8.2AHM3/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 TA6L8.2AHM3/H?
For technical support, including TA6L8.2AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TA6L8.2AHM3/H requirements.
6.How does Aetrix verify that TA6L8.2AHM3/H is sourced from the original manufacturer or authorized distributors?
All TA6L8.2AHM3/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 TA6L8.2AHM3/H meets industry standards.
7.What is the process for return or replacement of TA6L8.2AHM3/H?
All TA6L8.2AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with TA6L8.2AHM3/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 TA6L8.2AHM3/H part is unused and in its original packaging.
Return procedure for TA6L8.2AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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