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Vishay General Semiconductor - Diodes Division TPSMC6.8AHE3/9AT
- Part No.:
- TPSMC6.8AHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC6.8AHE3/9AT.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,790
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Product details
Overview
TPSMC6.8AHE3/9AT from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for robust overvoltage protection in power rails and signal lines. It features a 6.8 V breakdown voltage (VBR = 6.45–7.14 V at 10 mA), 1500 W peak pulse power (10/1000 μs), clamping voltage of 10.5 V at 143 A, 185 °C maximum junction temperature, and SMC (DO-214AB) package - used to safeguard MOSFETs and ICs against inductive switching transients in automotive and industrial power supplies.
For engineers reviewing the TPSMC6.8AHE3/9AT datasheet, TPSMC6.8AHE3/9AT pinout, TPSMC6.8AHE3/9AT application, or TPSMC6.8AHE3/9AT equivalent, key selection criteria include unidirectional polarity, 5.8 V stand-off voltage (VWM), <1000 μA reverse leakage at VWM, AEC-Q101 qualification status, and compatibility with high-temperature PCB assembly up to 260 °C peak reflow.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology to deliver stable clamping under repetitive surge stress. Its 185 °C TJ rating enables operation in under-hood automotive environments and high-power industrial converters where thermal derating is critical.
The device meets MSL Level 1 per J-STD-020 and supports lead-free soldering with matte tin-plated terminals. Its 10/1000 μs waveform response ensures effective suppression of lightning-induced surges and inductive kickback in DC power distribution networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 6.45 / 6.80 / 7.14 V at 10 mA - defines precise conduction onset for reliable overvoltage threshold control |
| VWM | 5.80 V - maximum continuous working voltage before leakage exceeds 1000 μA, ensuring no false triggering |
| VC @ IPPM | 10.5 V at 143 A - clamping voltage limits downstream component stress during 1500 W transient events |
| PPPM | 1500 W (10/1000 μs) - sustains high-energy surges without failure in automotive load-dump scenarios |
| TJ max. | +185 °C - supports extended lifetime in high-ambient-temperature applications such as engine control units |
| Polarity | Unidirectional - protects only positive-going transients; requires external polarity management for bidirectional use |
| Package | SMC (DO-214AB) - industry-standard 2-pin surface-mount outline with 8.0 mm × 8.0 mm copper pad requirement |
Pinout & Package
TPSMC6.8AHE3/9AT uses the SMC (DO-214AB) package: a rectangular, surface-mount, two-terminal case with cathode indicated by a color band. Mounting requires 0.31″ × 0.31″ (8.0 mm × 8.0 mm) copper pads per terminal for rated power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to protected circuit ground or low-side return path; must be routed with low-inductance layout |
| Cathode | Current exit point during clamping | Connected to protected line (e.g., 5 V rail); color band identifies this terminal for correct orientation |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation optimized design | Reduces long-term parameter drift under thermal cycling and humidity exposure, enhancing field reliability |
| 1500 W peak pulse power (10/1000 μs) | Withstands ISO 7637-2 Pulse 5a load-dump surges in 12 V automotive systems without degradation |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive-grade production use including temperature cycling, HTRB, and ESD testing per stress requirements |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (<1 ns rise time), improving protection margin |
| MSL Level 1, 260 °C peak reflow | Enables single-pass lead-free assembly without moisture-related popcorning or delamination |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 5 V microcontroller supply rails in engine control modules exposed to ISO 7637-2 load-dump transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between VCC and GND to limit voltage excursions above 10.5 V. Use Value: Prevents latch-up or permanent damage to MCU during 12 V system load dump events up to 1500 W. | Use Scenario: Shielding analog output lines of pressure sensors in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: TVS placed across sensor output and reference ground to absorb ESD and switching noise. Use Value: Maintains signal integrity below ±10.5 V clamping level while supporting 100 kHz bandwidth due to low junction capacitance. |
| DC-DC Converter Input Protection | Telecom Power Supply Surge Suppression |
Use Scenario: Safeguarding input stage of 24 V-to-5 V buck converters in railway signaling equipment. IC Role / Device Role / Timing Role: Primary overvoltage clamp on converter input, upstream of EMI filter and controller IC. Use Value: Absorbs 10/1000 μs surges up to 143 A without degradation, preserving converter uptime in harsh EMI environments. | Use Scenario: Protecting primary-side DC bus in PoE-powered telecom switches subjected to lightning-induced surges. IC Role / Device Role / Timing Role: High-power TVS connected between +48 V bus and chassis ground to divert surge energy. Use Value: Delivers 1500 W pulse handling with <1 ns response, meeting IEC 61000-4-5 Level 4 immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.8A | Lower PPPM (600 W), same VBR range, SMB package (smaller footprint, lower thermal mass) | Not rated for AEC-Q101; limited to commercial/industrial ambient temperatures (TJ max = 150 °C) | Select when board space is constrained and surge energy is ≤600 W; verify thermal derating for >85 °C ambient |
| 1.5KE6.8A | Through-hole DO-201 package, identical electrical specs but higher mounting inductance and manual assembly requirement | Lacks MSL Level 1 rating and RoHS-compliant matte tin plating; not suitable for automated SMT lines | Choose only for legacy through-hole designs or prototyping where reflow compatibility is not required |
Compared with SMBJ6.8A and 1.5KE6.8A, TPSMC6.8AHE3/9AT provides superior automotive-grade reliability via AEC-Q101 qualification, 185 °C operation, and 1500 W surge capacity - making it the preferred choice for production automotive and high-reliability industrial SMT applications.
Availability
TPSMC6.8AHE3/9AT is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface circuits, and DC-DC converter input stages requiring stable component supply, AEC-Q101 compliance, and high-temperature operational continuity.
Supply support for TPSMC6.8AHE3/9AT 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, thermal performance, and automotive qualification.
TPSMC6.8AHE3/9AT belongs to Vishay's PAR® series of high-power surface-mount TVS diodes, engineered specifically for demanding transient suppression in automotive, industrial, and telecom power systems where thermal stability and AEC-Q101 validation are mandatory.
FAQ
What is the breakdown voltage tolerance of TPSMC6.8AHE3/9AT?
The TPSMC6.8AHE3/9AT has a specified breakdown voltage range of 6.45 V to 7.14 V at 10 mA test current, corresponding to ±5% tolerance around the nominal 6.8 V value. This tight VBR distribution ensures consistent clamping behavior across production lots and supports precise overvoltage threshold design in safety-critical circuits like automotive ECUs.
Is TPSMC6.8AHE3/9AT suitable for bidirectional transient protection?
No, TPSMC6.8AHE3/9AT is unidirectional only, meaning it clamps positive transients relative to ground and conducts in forward bias during negative excursions. For bidirectional protection, a pair of TPSMC6.8AHE3/9AT devices in series opposition or a dedicated bidirectional TVS such as TPSMC6.8CA must be used - the latter offers symmetric ±6.8 V breakdown but different packaging and qualification.
Does TPSMC6.8AHE3/9AT meet AEC-Q101 requirements?
Yes, TPSMC6.8AHE3/9AT is AEC-Q101 qualified, as confirmed by its HE3 suffix and documentation in Vishay's datasheet (Doc. #88407, Rev. 19-Jan-2024). This qualification covers stress tests including high-temperature reverse bias, temperature cycling, and ESD, validating its suitability for automotive electronic control units and under-hood applications.
What is the maximum clamping voltage of TPSMC6.8AHE3/9AT at rated surge current?
The maximum clamping voltage (VC) of TPSMC6.8AHE3/9AT is 10.5 V at 143 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value represents the upper limit of voltage seen by downstream components during worst-case surge events and is critical for ensuring protected ICs remain within absolute maximum ratings.
Can TPSMC6.8AHE3/9AT be used in lead-free reflow processes?
Yes, TPSMC6.8AHE3/9AT is rated for lead-free reflow with a maximum peak temperature of 260 °C and meets MSL Level 1 per J-STD-020. Its matte tin-plated terminals comply with J-STD-002 and JESD 22-B102, and it passes JESD 201 Class 2 whisker testing - confirming full compatibility with standard SMT assembly lines using SAC305 or similar alloys.
TPSMC6.8AHE3/9AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5.8V
- Voltage - Breakdown (Min):
- 6.45V
- Voltage - Clamping (Max) @ Ipp:
- 10.5V
- Current - Peak Pulse (10/1000µs):
- 143A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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-214AB (SMCJ)
TPSMC6.8AHE3/9AT FAQ
1.How can I place an order for TPSMC6.8AHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC6.8AHE3/9AT 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 TPSMC6.8AHE3/9AT reliable?
The price and inventory of TPSMC6.8AHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMC6.8AHE3/9AT is usually 5 days.
3.What payment methods are accepted for TPSMC6.8AHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC6.8AHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC6.8AHE3/9AT?
TPSMC6.8AHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC6.8AHE3/9AT 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 TPSMC6.8AHE3/9AT?
For technical support, including TPSMC6.8AHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC6.8AHE3/9AT requirements.
6.How does Aetrix verify that TPSMC6.8AHE3/9AT is sourced from the original manufacturer or authorized distributors?
All TPSMC6.8AHE3/9AT 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 TPSMC6.8AHE3/9AT meets industry standards.
7.What is the process for return or replacement of TPSMC6.8AHE3/9AT?
All TPSMC6.8AHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC6.8AHE3/9AT, 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 TPSMC6.8AHE3/9AT part is unused and in its original packaging.
Return procedure for TPSMC6.8AHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMC6.8AHE3/9AT Tags
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