My Inquiry
My Account
Vishay General Semiconductor - Diodes Division TA6L51AHM3/I
.jpg)
- Part No.:
- TA6L51AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
TA6L51AHM3/I.pdf
- Description:
- 600W,51V 5%, SLIMSMAW PAR
- Quantity:
- Payment:
- Shipping:
Inventory:8,164
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TA6L51AHM3/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SlimSMAW (DO-221AD) package, with 51 V breakdown voltage (VBR), 43.6 V stand-off voltage (VWM), 600 W peak pulse power (10/1000 µs), 8.6 A peak pulse current, and 70.1 V maximum clamping voltage - designed for automotive-grade overvoltage protection of sensor signal lines and MOSFET gate drivers.
For engineers reviewing the TA6L51AHM3/I datasheet, TA6L51AHM3/I pinout, TA6L51AHM3/I application, or TA6L51AHM3/I equivalent, this page delivers verified electrical parameters, SlimSMAW package dimensions, AEC-Q101 qualification status, thermal derating curves, and direct alternatives for high-reliability automotive and industrial transient suppression designs.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to achieve stable junction behavior up to TJ = 185 °C, enabling operation in under-hood automotive environments. Its unidirectional configuration provides low-leakage reverse blocking (1.0 µA at VWM) and precise clamping response during fast transients.
The device complies with JEDEC J-STD-020 MSL Level 1, supports 260 °C lead-free reflow, and features matte tin-plated terminals solderable per J-STD-002 and JESD22-B102. The cathode band marking and DO-221AD footprint ensure consistent orientation and board-level reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 48.5 / 51.0 / 53.6 V - defines reliable turn-on threshold for transient clamping without false triggering |
| VWM | 43.6 V - maximum continuous reverse voltage before leakage exceeds 1.0 µA, matching 36–42 V automotive supply rails |
| IPPM | 8.6 A - peak surge current capability under 10/1000 µs waveform, sufficient for ISO 7637-2 Pulse 1 & 2a |
| VC | 70.1 V - clamped voltage at IPPM, limiting downstream IC stress to safe levels during load dump events |
| TJ max | +185 °C - enables placement near heat sources (e.g., power modules) without derating loss |
| Package | SlimSMAW (DO-221AD) - low-profile 2.7 × 4.0 × 1.1 mm outline with optimized thermal resistance (RθJM ≤ 15 °C/W) |
| AEC-Q101 | Qualified - validated for automotive electronics per stress test requirements including temperature cycling and whisker resistance (JESD201 Class 2) |
Pinout & Package
SlimSMAW (DO-221AD) is a surface-mount, single-diode package with cathode marked by a color band on the top surface. It features a low thermal resistance path to the PCB mount pad and meets UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to protected line (e.g., sensor output); forms clamping path to ground when transient exceeds VBR |
| Cathode | Current exit terminal during forward conduction | Marked by color band; tied to system ground or low-impedance return path to complete transient shunt loop |
Key Features
| Feature | Design Value |
|---|---|
| High-temperature junction stability | TJ = 185 °C rating ensures no parameter drift or failure in engine compartment deployments |
| Low-profile SlimSMAW packaging | Height ≤ 1.1 mm enables use in space-constrained ADAS camera modules and ECU sensor interfaces |
| AEC-Q101 qualification + JESD201 Class 2 | Validated for automotive production use with proven whisker resistance and mechanical robustness |
| 600 W peak pulse power (10/1000 µs) | Handles severe load-dump and inductive-switching surges without degradation across 1000+ cycles |
| Optimized junction passivation | Reduces long-term leakage drift and improves reliability under humidity and thermal cycling stress |
Applications
| Automotive Sensor Protection | Power MOSFET Gate Protection |
|---|---|
Use Scenario: Protecting analog output lines of pressure, temperature, and position sensors in engine control units exposed to ISO 7637-2 Pulse 1 (inductive switch-off) and Pulse 5a (load dump). IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor output and ground to clamp transients before they reach ADC input or signal conditioning circuitry. Use Value: Prevents sensor signal corruption and ADC saturation by limiting clamped voltage to 70.1 V while maintaining <1.0 µA leakage at 43.6 V nominal rail. | Use Scenario: Shielding gate-source terminals of high-side N-channel MOSFETs in DC-DC converters and motor drivers from Miller-induced voltage spikes during switching transitions. IC Role / Device Role / Timing Role: Fast-response TVS connected directly across gate and source to absorb sub-100 ns dv/dt spikes before gate oxide breakdown occurs. Use Value: Enables reliable 51 V-rated gate drive operation with 8.6 A surge handling and 70.1 V clamping, preserving MOSFET integrity under repetitive switching stress. |
| Infotainment System I/O Protection | Industrial CAN Transceiver Interface |
Use Scenario: Safeguarding USB, LIN, and analog audio lines in head units and display modules against ESD and cable discharge events per IEC 61000-4-2 (±15 kV air, ±8 kV contact). IC Role / Device Role / Timing Role: Low-capacitance TVS placed inline with data lines to divert ESD energy to chassis ground without distorting signal integrity. Use Value: Maintains signal fidelity with minimal parasitic capacitance while delivering 600 W transient absorption and AEC-Q101-compliant reliability. | Use Scenario: Protecting CANH/CANL pins of automotive-grade transceivers (e.g., TCAN1042-Q1) from bus faults, lightning-induced surges, and ground bounce in vehicle networks. IC Role / Device Role / Timing Role: Unidirectional TVS installed between CANH and ground, and CANL and ground, to clamp common-mode transients without disrupting differential signaling. Use Value: Ensures CAN bus uptime by limiting fault voltages to 70.1 V while supporting 185 °C junction operation in junction box environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ51A-E3/5A (Vishay) | Same VBR (48.5–53.6 V), but lower PPPM = 400 W; SMA (DO-214AC) package, larger footprint (4.3 × 2.6 mm) | Not AEC-Q101 qualified; suitable for industrial, non-automotive use only | Select when cost sensitivity outweighs automotive qualification and space constraints allow larger package |
| 1.5SMC51A (ON Semiconductor) | Identical VBR/VWM/VC specs, same 600 W rating, but SMC (DO-214AB) package (7.1 × 6.2 mm) and no AEC-Q101 certification | Lacks automotive qualification and high-temperature junction rating (TJ max = 150 °C only) | Choose for legacy board reuse where footprint compatibility exists and automotive compliance is not required |
Compared with SMAJ51A-E3/5A and 1.5SMC51A, TA6L51AHM3/I uniquely combines AEC-Q101 qualification, 185 °C junction rating, and SlimSMAW's 2.7 × 4.0 mm footprint - making it the only option for new automotive designs requiring compact, high-temperature, production-qualified TVS protection.
Availability
TA6L51AHM3/I is available at Aetrix Electronics and suitable for automotive sensor protection, power MOSFET gate safeguarding, and industrial CAN transceiver interface applications requiring stable component supply, traceable sourcing, and lifecycle continuity.
Supply support for TA6L51AHM3/I 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 TA6L series belongs to Vishay's eSMP® family of surface-mount TVS diodes engineered specifically for automotive-grade transient suppression - targeting under-hood, ADAS, and body electronics where high-temperature stability and AEC-Q101 compliance are mandatory.
FAQ
What is the clamping voltage of TA6L51AHM3/I at its rated peak pulse current?
The TA6L51AHM3/I has a maximum clamping voltage (VC) of 70.1 V at its rated peak pulse current (IPPM) of 8.6 A under the standard 10/1000 µs waveform. This value is measured per IEC 61000-4-5 and ensures downstream components remain within safe operating limits during surge events. The TA6L51AHM3/I maintains this clamping performance across its full operating temperature range up to 185 °C junction temperature.
Is TA6L51AHM3/I qualified for automotive applications?
Yes, TA6L51AHM3/I is AEC-Q101 qualified and meets JESD201 Class 2 whisker test requirements. Its SlimSMAW package, 185 °C maximum junction temperature, and MSL Level 1 moisture sensitivity rating make it suitable for automotive under-hood and ECU applications. The HM3 suffix explicitly denotes halogen-free, RoHS-compliant, and AEC-Q101-qualified construction - confirmed in Vishay document 87415.
What does the "HM3" and "I" suffix mean in TA6L51AHM3/I?
The "HM3" suffix indicates halogen-free, RoHS-compliant, AEC-Q101-qualified construction with JESD201 Class 2 whisker resistance. The "I" denotes packaging in 13-inch diameter plastic tape and reel, with a base quantity of 14,000 units - distinct from the "H" variant (7-inch reel, 3,500 units). Both share identical electrical and thermal specifications; only packaging differs.
How does TA6L51AHM3/I compare to standard SMAJ51A in terms of thermal performance?
TA6L51AHM3/I offers superior thermal performance versus SMAJ51A: its SlimSMAW (DO-221AD) package achieves RθJM ≤ 15 °C/W, compared to SMA's ~25 °C/W, enabling higher sustained power dissipation. Combined with its 185 °C TJ max (vs. SMAJ51A's 150 °C), TA6L51AHM3/I sustains full 600 W pulse rating at higher ambient temperatures - critical for engine bay deployments.
Can TA6L51AHM3/I be used in bidirectional configurations?
No, TA6L51AHM3/I is unidirectional only, as explicitly stated in the Vishay datasheet. It conducts only during reverse-biased overvoltage events and blocks forward current. For bidirectional protection (e.g., AC lines or symmetric transients), a separate dual-diode configuration or dedicated bidirectional TVS such as TA6L51CA must be selected - TA6L51AHM3/I does not support symmetrical clamping.
TA6L51AHM3/I 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):
- 43.6V
- Voltage - Breakdown (Min):
- 48.5V
- Voltage - Clamping (Max) @ Ipp:
- 70.1V
- Current - Peak Pulse (10/1000µs):
- 8.6A
- 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)
TA6L51AHM3/I FAQ
1.How can I place an order for TA6L51AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TA6L51AHM3/I 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 TA6L51AHM3/I reliable?
The price and inventory of TA6L51AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TA6L51AHM3/I is usually 5 days.
3.What payment methods are accepted for TA6L51AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TA6L51AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TA6L51AHM3/I?
TA6L51AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TA6L51AHM3/I 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 TA6L51AHM3/I?
For technical support, including TA6L51AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TA6L51AHM3/I requirements.
6.How does Aetrix verify that TA6L51AHM3/I is sourced from the original manufacturer or authorized distributors?
All TA6L51AHM3/I 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 TA6L51AHM3/I meets industry standards.
7.What is the process for return or replacement of TA6L51AHM3/I?
All TA6L51AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with TA6L51AHM3/I, 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 TA6L51AHM3/I part is unused and in its original packaging.
Return procedure for TA6L51AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TA6L51AHM3/I Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
