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Vishay General Semiconductor - Diodes Division TA6F30AHM3/6B
- Part No.:
- TA6F30AHM3/6B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
TA6F30AHM3/6B.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC DO221AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,436
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Product details
Overview
TA6F30AHM3/6B from Vishay General Semiconductor is a unidirectional surface-mount PAR® Transient Voltage Suppressor (TVS) designed for clamping inductive switching and lightning-induced transients on signal lines and power rails. It features a 28.5 V to 31.5 V breakdown voltage (VBR), 25.6 V standoff voltage (VWM), 600 W peak pulse power (10/1000 µs), 14.5 A peak pulse current, and 41.4 V maximum clamping voltage at IPPM - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the TA6F30AHM3/6B datasheet, TA6F30AHM3/6B pinout, TA6F30AHM3/6B application, or TA6F30AHM3/6B equivalent, key selection criteria include its AEC-Q101 qualification, DO-221AC (SlimSMA) package with 0.95 mm profile, TJ = 185 °C rating, IEC 61000-4-2 Level 4 ESD immunity (15 kV air / 8 kV contact), and uni-directional polarity with cathode band marking.
Technical Context
This TVS diode operates as a clamping device in series with sensitive inputs or parallel to supply rails, activating only when transient voltage exceeds VWM (25.6 V) and fully clamping at ≤41.4 V under 14.5 A surge. Its passivated anisotropic rectifier structure ensures stable leakage (<1 µA at VWM, TJ = 150 °C) and low thermal resistance (RθJM = 20 °C/W).
Designed for high-reliability environments, it supports continuous operation up to TJ = 185 °C, meets MSL Level 1 per J-STD-020 (260 °C reflow peak), and delivers 6 W power dissipation at TM = 65 °C on infinite heatsink - enabling use in under-hood automotive modules and industrial PLC analog input stages without derating penalties.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 28.5 V min / 31.5 V max at 1.0 mA - defines precise activation threshold for overvoltage events |
| Standoff Voltage VWM | 25.6 V - maximum continuous working voltage before leakage rises significantly |
| Peak Pulse Power PPPM | 600 W (10/1000 µs) - sustains high-energy transients without failure in automotive load-dump scenarios |
| Clamping Voltage VC | 41.4 V at 14.5 A IPPM - limits downstream IC stress during worst-case surge conditions |
| Junction Temperature Range | –65 °C to +185 °C - enables deployment in engine control units and industrial motor drives |
| ESD Rating | IEC 61000-4-2 Level 4: 15 kV air / 8 kV contact - protects human-interface ports against electrostatic discharge |
| Package | DO-221AC (SlimSMA) - 0.95 mm height, halogen-free, RoHS-compliant, AEC-Q101 qualified |
Pinout & Package
DO-221AC (SlimSMA) package: surface-mount, bi-terminal, cathode indicated by color band; dimensions 4.15 × 2.50 × 0.95 mm (L × W × H); matte tin-plated leads, J-STD-002 solderable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or return path; completes clamping loop during transient conduction |
| Cathode | High-side connection point | Marked by color band; connects to protected line (e.g., CAN_H, sensor VOUT, MCU I/O) |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress |
| Junction passivation | Optimized anisotropic rectifier design reduces leakage drift over lifetime and temperature |
| 185 °C junction capability | Enables direct mounting near heat sources (e.g., power MOSFETs, motor drivers) without thermal derating |
| MSL Level 1 rating | Supports single-reflow assembly at 260 °C peak without moisture-related popcorn failure |
| 600 W surge handling | Withstands ISO 7637-2 Pulse 1/2a/5a waveforms in 12 V automotive systems |
Applications
| Automotive Sensor Protection | Industrial Analog Input Protection |
|---|---|
Use Scenario: Protecting Hall-effect and thermistor signal lines in engine control modules exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Clamping transient overvoltage before it reaches ADC front-end or op-amp buffer. Use Value: Prevents latch-up or damage to 3.3 V/5 V microcontrollers while maintaining <1 µA leakage at 25.6 V operating voltage. |
Use Scenario: Safeguarding 4–20 mA current-loop inputs in programmable logic controllers subjected to field-wiring ESD and inductive kickback. IC Role / Device Role / Timing Role: Fast-response shunt clamp that activates within nanoseconds to limit voltage across input protection resistors and op-amps. Use Value: Ensures signal integrity during 8 kV contact ESD events without affecting loop accuracy or introducing offset error. |
| Telecom Line Interface Protection | Consumer USB Port ESD Suppression |
Use Scenario: Shielding RS-485 transceiver data lines in base station remote units from lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Bidirectional clamping (via external configuration) limiting differential-mode transients to <41.4 V peak. Use Value: Maintains signal eye diagram integrity under 10/1000 µs 600 W surges while meeting IEC 61000-4-5 Level 3 requirements. |
Use Scenario: Adding secondary-level ESD protection on USB 2.0 D+/D− lines in smart home hubs where internal SoC ESD is insufficient. IC Role / Device Role / Timing Role: Low-capacitance (<50 pF typical) shunt device placed adjacent to connector to divert fast HBM pulses. Use Value: Provides 15 kV air-gap ESD robustness without degrading 480 Mbps data eye due to minimal junction capacitance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ30A | Same DO-214AC package; lower PPPM (400 W); VBR = 33.3–36.8 V; no AEC-Q101 qualification | Not suitable for automotive under-hood use; limited to commercial-grade industrial or consumer designs | Select SMAJ30A only if AEC-Q101 compliance and 600 W surge margin are not required |
| SMCJ30A | DO-214AB package; larger footprint (7.11 × 6.22 mm); higher PPPM (1500 W); same VBR range; AEC-Q101 qualified | Requires PCB layout change; preferred where higher surge energy must be absorbed without voltage overshoot | Choose SMCJ30A when system-level surge testing exceeds IEC 61000-4-5 Level 4 and board space permits larger package |
Compared with SMAJ30A and SMCJ30A, TA6F30AHM3/6B uniquely balances AEC-Q101 compliance, 600 W surge capacity, and ultra-low-profile DO-221AC packaging - making it optimal for space-constrained automotive and industrial modules needing validated reliability without sacrificing clamping performance.
Availability
TA6F30AHM3/6B is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial analog input protection, and telecom line interface circuits requiring stable component supply, long-term lifecycle support, and AEC-Q101 traceability.
Supply support for TA6F30AHM3/6B 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 diodes, rectifiers, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The TA6F series belongs to Vishay's PAR® family of high-temperature, high-reliability TVS diodes engineered specifically for automotive and industrial environments where sustained 185 °C operation and AEC-Q101 validation are mandatory.
FAQ
What is the exact breakdown voltage range for TA6F30AHM3/6B?
The TA6F30AHM3/6B has a guaranteed breakdown voltage (VBR) range of 28.5 V minimum to 31.5 V maximum, measured at 1.0 mA test current per the Vishay datasheet (Doc #89939). This specification ensures consistent clamping behavior across production lots and temperature extremes, critical for protecting 24 V automotive and industrial control systems where overvoltage thresholds must remain tightly controlled.
Is TA6F30AHM3/6B compatible with lead-free reflow processes?
Yes, TA6F30AHM3/6B is qualified to MSL Level 1 per J-STD-020 and supports peak reflow temperatures up to 260 °C, making it fully compatible with standard lead-free soldering profiles. Its matte tin-plated terminals meet J-STD-002 and JESD22-B102 solderability requirements, and the HM3 suffix confirms compliance with JESD 201 Class 2 whisker resistance - ensuring reliable interconnects in high-volume SMT assembly.
Does TA6F30AHM3/6B support bidirectional transient suppression?
No, TA6F30AHM3/6B is a unidirectional TVS diode, as explicitly stated in the Vishay datasheet. It conducts only when the cathode is positive relative to the anode - intended for DC-biased lines like power rails or single-ended signal paths. For bidirectional protection (e.g., AC lines or differential buses), two TA6F30AHM3/6B devices must be used in series-opposing configuration, or a dedicated bidirectional part such as TA6F30CA should be selected.
What is the maximum clamping voltage of TA6F30AHM3/6B under surge conditions?
The maximum clamping voltage (VC) of TA6F30AHM3/6B is 41.4 V, specified at 14.5 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value represents the upper limit of voltage seen by downstream circuitry during worst-case transient events, directly enabling safe interfacing with 36 V-rated components and providing margin against overvoltage damage in 24 V systems.
How does TA6F30AHM3/6B differ from the TA6F30A base part?
TA6F30AHM3/6B is the tape-and-reel packaged variant of TA6F30A, with HM3 denoting halogen-free, RoHS-compliant, and AEC-Q101-qualified construction, and /6B specifying 13-inch diameter plastic tape and reel (14,000 units per reel). Electrically and thermally identical to TA6F30A, the /6B suffix reflects packaging and logistics configuration - not functional or parametric differentiation - and is optimized for automated SMT placement in high-volume manufacturing.
TA6F30AHM3/6B 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):
- 25.6V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 41.4V
- Current - Peak Pulse (10/1000µs):
- 14.5A
- 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:
- DO-221AC (SlimSMA)
TA6F30AHM3/6B FAQ
1.How can I place an order for TA6F30AHM3/6B through Aetrix?
Please submit a Request for Quotation (RFQ) for TA6F30AHM3/6B 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 TA6F30AHM3/6B reliable?
The price and inventory of TA6F30AHM3/6B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TA6F30AHM3/6B is usually 5 days.
3.What payment methods are accepted for TA6F30AHM3/6B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TA6F30AHM3/6B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TA6F30AHM3/6B?
TA6F30AHM3/6B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TA6F30AHM3/6B 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 TA6F30AHM3/6B?
For technical support, including TA6F30AHM3/6B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TA6F30AHM3/6B requirements.
6.How does Aetrix verify that TA6F30AHM3/6B is sourced from the original manufacturer or authorized distributors?
All TA6F30AHM3/6B 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 TA6F30AHM3/6B meets industry standards.
7.What is the process for return or replacement of TA6F30AHM3/6B?
All TA6F30AHM3/6B units undergo pre-shipment inspection (PSI). If there is an issue with TA6F30AHM3/6B, 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 TA6F30AHM3/6B part is unused and in its original packaging.
Return procedure for TA6F30AHM3/6B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TA6F30AHM3/6B Tags
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