My Inquiry
My Account
Vishay General Semiconductor - Diodes Division TA6F12AHM3_A/H
- Part No.:
- TA6F12AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
TA6F12AHM3_A/H.pdf
- Description:
- TVS DIODE 10.2VWM 16.7VC DO221AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,653
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TA6F12AHM3_A/H from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) diode in SlimSMA (DO-221AC) package, with 12.0 V nominal breakdown voltage (VBR), 10.2 V stand-off voltage (VWM), and 600 W peak pulse power (10/1000 μs). It delivers clamping voltage of 35.9 V at 5.0 A peak surge current and operates up to 185 °C junction temperature, making it suitable for automotive sensor line protection against load dump and ESD.
For engineers reviewing the TA6F12AHM3_A/H datasheet, TA6F12AHM3_A/H pinout, TA6F12AHM3_A/H application, or TA6F12AHM3_A/H equivalent, this device requires attention to its unidirectional polarity, MSL Level 1 moisture sensitivity, 0.95 mm profile for low-height PCB layouts, AEC-Q101 qualification status, and thermal resistance (RθJA = 120–150 °C/W) under standard FR4 mounting conditions.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to achieve stable clamping performance across temperature, with a positive temperature coefficient of VBR (0.070 %/°C) enabling predictable voltage shift under thermal stress. Its junction passivation and halogen-free molding compound support high-reliability operation in automotive environments.
The device is rated for 30 kV ESD protection per IEC 61000-4-2 (contact and air discharge), meets JESD201 Class 2 whisker resistance, and features matte tin-plated leads solderable per J-STD-002 and JESD22-B102 - all validated under AEC-Q101 stress testing protocols.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 11.4 / 12.0 / 12.6 V at 1.0 mA - defines precise overvoltage triggering threshold for circuit protection |
| VWM | 10.2 V - maximum continuous reverse working voltage before leakage rises above 2.0 μA |
| IPPM (10/1000 μs) | 5.0 A - peak surge current capability that determines clamping robustness during transients |
| VC @ IPPM | 35.9 V - clamped voltage seen by protected IC/MOSFET during full-rated surge, limiting stress |
| TJ max | 185 °C - enables operation in under-hood automotive zones without derating penalties |
| PPPM | 600 W - energy-handling capacity for 10/1000 μs waveform, critical for inductive switching immunity |
| ESD Rating | 30 kV contact/air per IEC 61000-4-2 - eliminates need for external ESD diodes on sensor interfaces |
Pinout & Package
SlimSMA (DO-221AC) package: ultra-low-profile surface-mount case with 0.95 mm typical height, 2.50–2.70 mm length, 1.20–1.25 mm width, and cathode band marking. Matte tin-plated terminals meet J-STD-002 solderability requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction or clamping | Connected to protected line (e.g., sensor signal); must be routed with low-inductance trace |
| Cathode | Current exit terminal during reverse-biased clamping | Connected to ground reference plane; requires low-impedance return path to sustain clamping performance |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including HTGB, HTRB, and temperature cycling per JEDEC standards |
| Junction passivation | Reduces parameter drift and leakage growth under high-temperature bias stress (TJ = 150 °C) |
| MSL Level 1 rating | Enables standard SMT reflow without baking; peak temperature tolerance up to 260 °C |
| Halogen-free & RoHS-compliant | Meets automotive environmental compliance requirements and supports green manufacturing |
| 0.95 mm profile | Minimizes board space and enables placement beneath connectors or shields in compact ECUs |
Applications
| Automotive Sensor Protection | Power Line Transient Suppression |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from ISO 7637-2 pulse 1/2a/3a transients and ESD events. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and chassis ground to clamp fast-rising transients before they reach sensitive input stages. Use Value: Maintains signal integrity below 35.9 V clamping level while surviving 30 kV ESD strikes - eliminating need for secondary protection layers. |
Use Scenario: Safeguarding 12 V power rails in body control modules and lighting drivers against load dump spikes and alternator ripple. IC Role / Device Role / Timing Role: Parallel-connected TVS absorbing energy from 600 W, 10/1000 μs surges induced by relay coil de-energization. Use Value: Withstands 185 °C junction temperature and derates predictably per Fig. 2 - enabling reliable operation near hot engine compartments. |
| Industrial Motor Control Inputs | Automotive Camera Module Interfaces |
Use Scenario: Shielding encoder feedback lines and Hall-effect sensor inputs in motor drives from commutation noise and inductive kickback. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF typical at VWM) TVS preserving signal edge rate on high-speed digital position signals. Use Value: 0.95 mm height avoids interference with nearby heatsinks or mechanical housings in compact drive enclosures. |
Use Scenario: Protecting MIPI CSI-2 differential pairs and power pins in ADAS camera modules from ESD during assembly and field operation. IC Role / Device Role / Timing Role: SlimSMA footprint allows placement directly at connector entry point with minimal trace length to reduce inductance. Use Value: Meets JESD201 Class 2 whisker resistance - preventing tin whisker-induced short circuits in long-life automotive vision systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ12A | Same 12 V VBR, but lower PPPM (400 W), higher VC (36.0 V), and no AEC-Q101 qualification | Not approved for automotive use; limited to industrial/commercial designs with lower surge severity | Select SMAJ12A only if cost sensitivity outweighs automotive qualification and 600 W surge margin |
| TPSMF12A | Same SlimSMA package and AEC-Q101 rating, but higher VC (38.9 V) and lower IPPM (4.3 A) at same test condition | Marginally lower clamping performance may require additional filtering in high-noise CAN FD networks | Prefer TA6F12AHM3_A/H when clamping voltage headroom < 2.0 V is required for 3.3 V logic interfaces |
Compared with SMAJ12A and TPSMF12A, TA6F12AHM3_A/H provides superior surge handling (600 W vs. 400 W / 500 W), tighter clamping (35.9 V vs. 36.0 V / 38.9 V), and guaranteed AEC-Q101 compliance - making it the preferred choice for safety-critical automotive signal line protection where thermal stability and ESD robustness are non-negotiable.
Availability
TA6F12AHM3_A/H is available at Aetrix Electronics and suitable for automotive sensor protection, power rail transient suppression, and industrial motor control interface applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TA6F12AHM3_A/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 TA6F series belongs to Vishay's PAR® family of high-temperature TVS diodes, engineered specifically for AEC-Q101-compliant transient protection in harsh automotive environments where junction stability and ESD immunity are critical.
FAQ
What is the maximum clamping voltage of the TA6F12AHM3_A/H under rated surge conditions?
The TA6F12AHM3_A/H exhibits a maximum clamping voltage (VC) of 35.9 V when subjected to its rated peak pulse current of 5.0 A using a 10/1000 μs waveform. This value is measured per the test conditions specified in the Vishay datasheet (Document Number: 89939), and ensures downstream components like 3.3 V or 5 V microcontrollers remain within safe operating limits during transient events. The TA6F12AHM3_A/H maintains this clamping performance across its full operating temperature range.
Is the TA6F12AHM3_A/H suitable for automotive applications requiring AEC-Q101 qualification?
Yes, the TA6F12AHM3_A/H is explicitly AEC-Q101 qualified per the Vishay datasheet (Revision: 16-Jan-2025, Document Number: 89939). It has undergone full stress testing including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling, confirming suitability for automotive powertrain, body, and ADAS systems. The TA6F12AHM3_A/H also meets JESD201 Class 2 whisker resistance and MSL Level 1 reflow compatibility - all essential for automotive manufacturing.
What is the thermal resistance of the TA6F12AHM3_A/H, and how does it affect PCB layout?
The TA6F12AHM3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on a standard FR4 PCB with minimum recommended pad layout, and up to 150 °C/W under less optimal conditions. This means a 1 W power dissipation can raise junction temperature by ~120 °C above ambient - so layout must include adequate copper area (per Vishay's recommended mounting pad) and avoid thermal isolation. The TA6F12AHM3_A/H's 185 °C TJ max allows margin even in high-ambient environments.
Does the TA6F12AHM3_A/H have polarity marking, and how is it identified?
Yes, the TA6F12AHM3_A/H uses a visible cathode band marking on the SlimSMA (DO-221AC) package body to indicate polarity - consistent with industry-standard diode orientation. The cathode end corresponds to the banded side, and the anode is the opposite terminal. This marking is clearly shown in the mechanical drawings on page 4 of the Vishay datasheet (Document Number: 89939). Correct orientation is essential: reverse installation would prevent clamping during overvoltage events, leaving circuits unprotected.
What is the ESD withstand capability of the TA6F12AHM3_A/H, and which standard does it meet?
The TA6F12AHM3_A/H provides 30 kV ESD protection per IEC 61000-4-2, covering both contact and air discharge test methods. This rating is verified per the test conditions defined in the Vishay datasheet (Document Number: 89939), and confirms the device can absorb electrostatic discharges commonly encountered during handling, assembly, and field operation - particularly in automotive sensor and camera module applications. The TA6F12AHM3_A/H achieves this without external circuitry, simplifying design and reducing BOM count.
TA6F12AHM3_A/H 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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 10.2V
- Voltage - Breakdown (Min):
- 11.4V
- Voltage - Clamping (Max) @ Ipp:
- 16.7V
- Current - Peak Pulse (10/1000µs):
- 35.9A
- 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)
TA6F12AHM3_A/H FAQ
1.How can I place an order for TA6F12AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TA6F12AHM3_A/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 TA6F12AHM3_A/H reliable?
The price and inventory of TA6F12AHM3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TA6F12AHM3_A/H is usually 5 days.
3.What payment methods are accepted for TA6F12AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TA6F12AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TA6F12AHM3_A/H?
TA6F12AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TA6F12AHM3_A/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 TA6F12AHM3_A/H?
For technical support, including TA6F12AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TA6F12AHM3_A/H requirements.
6.How does Aetrix verify that TA6F12AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All TA6F12AHM3_A/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 TA6F12AHM3_A/H meets industry standards.
7.What is the process for return or replacement of TA6F12AHM3_A/H?
All TA6F12AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TA6F12AHM3_A/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 TA6F12AHM3_A/H part is unused and in its original packaging.
Return procedure for TA6F12AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TA6F12AHM3_A/H 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 …
