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Vishay General Semiconductor - Diodes Division TA6F24AHM3/6B
- Part No.:
- TA6F24AHM3/6B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
TA6F24AHM3/6B.pdf
- Description:
- TVS DIODE 20.5VWM 33.2VC DO221AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
TA6F24AHM3/6B from Vishay General Semiconductor is a unidirectional surface-mount PAR® Transient Voltage Suppressor (TVS) designed for clamping inductive switching transients and ESD events on signal lines and power rails. It features a breakdown voltage of 22.8–25.2 V at 1.0 mA, clamps to ≤33.2 V at 18.1 A (10/1000 μs), delivers 600 W peak pulse power, operates up to +185 °C junction temperature, and is AEC-Q101 qualified for automotive electronics protection.
For engineers reviewing the TA6F24AHM3/6B datasheet, TA6F24AHM3/6B pinout, TA6F24AHM3/6B application, or TA6F24AHM3/6B equivalent, key selection criteria include unidirectional clamping behavior, DO-221AC (SlimSMA) package compatibility with automated placement, 1.0 μA max reverse leakage at 20.5 V, MSL Level 1 moisture sensitivity, and IEC 61000-4-2 Level 4 ESD robustness (±8 kV contact / ±15 kV air).
Technical Context
The TA6F24AHM3/6B employs passivated anisotropic rectifier technology optimized for high-temperature stability and low-profile mounting. Its unidirectional architecture provides precise forward-biased clamping during overvoltage events while maintaining low leakage (<1.0 μA at VWM = 20.5 V) and tight VBR tolerance (±5% typical).
Thermal performance is defined by RθJA = 145 °C/W (on FR-4, minimum pad layout) and RθJM = 20 °C/W, enabling reliable operation under sustained 6 W power dissipation at TJ = 65 °C. The device meets JESD22-B102 solderability and JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VBR) | 22.8–25.2 V at IT = 1.0 mA - defines precise clamping onset threshold for overvoltage protection |
| Stand-off Voltage (VWM) | 20.5 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 μA |
| Clamping Voltage (VC) | ≤33.2 V at IPPM = 18.1 A (10/1000 μs) - limits transient voltage seen by downstream ICs |
| Peak Pulse Power (PPPM) | 600 W - sustains high-energy transients without failure per standard IEC 61000-4-5 waveform |
| Junction Temperature (TJ) | −65 to +185 °C - supports under-hood automotive and industrial environments without derating |
| ESD Rating | IEC 61000-4-2 Level 4: ±8 kV contact / ±15 kV air - protects against human-body-model discharge events |
| Moisture Sensitivity | MSL Level 1 (per J-STD-020) - allows unlimited floor life and reflow at 260 °C peak |
Pinout & Package
Package: DO-221AC (SlimSMA), ultra-low profile (0.95 mm typical height), halogen-free, RoHS-compliant, matte tin-plated terminals. Cathode denoted by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry terminal | Connected to protected line's lower-potential side (e.g., GND or return path) in unidirectional configuration |
| Cathode | Clamping output terminal | Connected to protected line's higher-potential side (e.g., signal or supply rail); color band identifies this end |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low profile height | 0.95 mm typical - enables use in space-constrained PCB layouts and thin consumer devices |
| AEC-Q101 qualification | Validated for automotive-grade reliability - supports deployment in ADAS, body control, and infotainment systems |
| Junction passivation design | Optimized anisotropic rectifier structure - ensures stable VBR and low IR drift over temperature and lifetime |
| Automated placement compatibility | DO-221AC geometry and matte tin terminations - compatible with standard SMT pick-and-place equipment |
| High thermal capability | TJ max = +185 °C with RθJM = 20 °C/W - maintains clamping integrity in thermally aggressive environments |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load-dump and inductive kickback in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and ground to clamp transients before they reach sensitive input stages. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V interface ICs during ISO 7637-2 pulse 1/2a/5a events due to its 33.2 V clamping at 18.1 A. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to relay coil flyback and motor drive noise. IC Role / Device Role / Timing Role: Standoff-rated TVS on 24 V DC input channels to absorb repetitive 600 W surges without degradation. Use Value: Enables >100,000 surge cycles at rated conditions thanks to 185 °C junction rating and robust passivation. |
| Consumer USB Port ESD Protection | Telecom Line Interface Protection |
Use Scenario: Adding secondary-level ESD protection on USB 2.0 D+/D− lines in smartphones and tablets where primary protection resides upstream. IC Role / Device Role / Timing Role: Low-capacitance unidirectional suppressor shunting ESD energy to ground during contact/air discharge events. Use Value: Meets IEC 61000-4-2 Level 4 (±15 kV air) while adding <0.5 pF parasitic capacitance - preserves signal integrity at 480 Mbps. |
Use Scenario: Protecting Ethernet PHY interfaces and DSL line drivers from lightning-induced surges and AC power cross-talk. IC Role / Device Role / Timing Role: Primary transient suppressor on twisted-pair telecom lines operating at −48 V nominal supply. Use Value: Withstands repeated 10/1000 μs surges up to 18.1 A while maintaining VWM = 20.5 V - avoids false triggering on normal line fluctuations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A | Same DO-214AC package; VBR = 25.6–28.4 V; VC = 38.9 V at 15.4 A; lower PPPM = 400 W | Higher clamping voltage reduces margin for 24 V rail protection; suitable only where 38.9 V clamping is acceptable | Select SMAJ24A only if board layout rework is not feasible and system can tolerate higher clamping voltage |
| SMCJ24A | DO-214AB package; larger footprint; VBR = 25.6–28.4 V; VC = 38.9 V at 15.4 A; PPPM = 1500 W | Higher power handling but incompatible with SlimSMA land pattern; requires PCB redesign | Choose SMCJ24A when surge energy exceeds 600 W and mechanical space permits larger package |
Compared with SMAJ24A and SMCJ24A, the TA6F24AHM3/6B uniquely combines AEC-Q101 qualification, 0.95 mm height, and 33.2 V clamping in DO-221AC - making it optimal for automotive and compact industrial designs where both reliability and space are constrained.
Availability
TA6F24AHM3/6B is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, consumer USB port protection, and telecom line driver circuits requiring stable component supply across production lifecycles.
Supply support for TA6F24AHM3/6B 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, MOSFETs, and protection devices with emphasis on high-reliability, high-temperature, and automotive-qualified components.
The TA6F24AHM3/6B belongs to Vishay's PAR® TVS family, engineered specifically for robust transient suppression in space- and thermal-constrained applications including automotive ECUs, industrial controls, and portable electronics.
FAQ
What is the exact breakdown voltage range for TA6F24AHM3/6B?
The TA6F24AHM3/6B has a guaranteed breakdown voltage (VBR) range of 22.8 V to 25.2 V measured at 1.0 mA test current, per Vishay Document Number 89939. This specification ensures consistent clamping onset across production lots and supports precise overvoltage protection design for 24 V nominal systems. The TA6F24AHM3/6B's tight VBR tolerance enables reliable coordination with downstream IC absolute maximum ratings.
Is TA6F24AHM3/6B suitable for automotive applications?
Yes, the TA6F24AHM3/6B is AEC-Q101 qualified and rated for junction temperatures up to +185 °C, making it suitable for under-hood and cabin automotive applications such as sensor interface protection, body control modules, and infotainment power rails. Its DO-221AC package, MSL Level 1 rating, and IEC 61000-4-2 Level 4 ESD immunity further validate its readiness for automotive production. The TA6F24AHM3/6B meets critical reliability requirements without derating in harsh thermal environments.
What is the clamping voltage of TA6F24AHM3/6B at its rated peak pulse current?
The TA6F24AHM3/6B clamps to a maximum of 33.2 V at its rated peak pulse current (IPPM) of 18.1 A under the standardized 10/1000 μs waveform. This value is measured per Figure 3 in Vishay Document 89939 and defines the upper voltage limit imposed on protected circuitry during surge events. The low clamping voltage of the TA6F24AHM3/6B helps ensure safe operation of 24 V-rated ICs and interfaces.
Does TA6F24AHM3/6B have bidirectional capability?
No, the TA6F24AHM3/6B is strictly unidirectional, as confirmed in the "FEATURES" section of Vishay Document 89939 ("Uni-directional only"). It conducts and clamps only in reverse bias (cathode positive relative to anode) and must be oriented accordingly in-circuit. Bidirectional protection requires separate devices or a dedicated bidirectional TVS; the TA6F24AHM3/6B does not provide symmetrical clamping.
What packaging option does TA6F24AHM3/6B use, and what does the "6B" suffix indicate?
The TA6F24AHM3/6B is supplied in 13-inch diameter plastic tape and reel format, with a base quantity of 14,000 units per reel. The "6B" suffix denotes this specific reel size and packaging configuration, distinct from "6A" (7-inch reel, 3500 units) and "H" or "I" variants. All HM3-suffix parts share halogen-free, RoHS-compliant construction and AEC-Q101 qualification. The TA6F24AHM3/6B's packaging supports high-volume SMT assembly with verified J-STD-002 solderability.
TA6F24AHM3/6B 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):
- 20.5V
- Voltage - Breakdown (Min):
- 22.8V
- Voltage - Clamping (Max) @ Ipp:
- 33.2V
- Current - Peak Pulse (10/1000µs):
- 18.1A
- 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)
TA6F24AHM3/6B FAQ
1.How can I place an order for TA6F24AHM3/6B through Aetrix?
Please submit a Request for Quotation (RFQ) for TA6F24AHM3/6B 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 TA6F24AHM3/6B reliable?
The price and inventory of TA6F24AHM3/6B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TA6F24AHM3/6B is usually 5 days.
3.What payment methods are accepted for TA6F24AHM3/6B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TA6F24AHM3/6B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TA6F24AHM3/6B?
TA6F24AHM3/6B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TA6F24AHM3/6B 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 TA6F24AHM3/6B?
For technical support, including TA6F24AHM3/6B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TA6F24AHM3/6B requirements.
6.How does Aetrix verify that TA6F24AHM3/6B is sourced from the original manufacturer or authorized distributors?
All TA6F24AHM3/6B 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 TA6F24AHM3/6B meets industry standards.
7.What is the process for return or replacement of TA6F24AHM3/6B?
All TA6F24AHM3/6B units undergo pre-shipment inspection (PSI). If there is an issue with TA6F24AHM3/6B, 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 TA6F24AHM3/6B part is unused and in its original packaging.
Return procedure for TA6F24AHM3/6B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TA6F24AHM3/6B Tags
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