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Vishay General Semiconductor - Diodes Division TPSMC6.8AHE3_B/I
- Part No.:
- TPSMC6.8AHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC6.8AHE3_B/I.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,016
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Product details
Overview
TPSMC6.8AHE3_B/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for clamping voltage transients on power and signal lines. It features 6.8 V breakdown voltage (VBR), 5.8 V stand-off voltage (VWM), 1500 W peak pulse power (10/1000 μs), 10.5 V maximum clamping voltage at 143 A, and operates up to +185 °C junction temperature - used in automotive ECUs, industrial sensor interfaces, and power supply input protection.
For engineers reviewing the TPSMC6.8AHE3_B/I datasheet, TPSMC6.8AHE3_B/I pinout, TPSMC6.8AHE3_B/I application, or TPSMC6.8AHE3_B/I equivalent, key selection criteria include unidirectional polarity, 10.5 V clamping at rated surge current, AEC-Q101 qualification status, SMC package thermal performance, and compatibility with 8.0 mm × 8.0 mm copper pad layouts per JEDEC standards.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable breakdown characteristics across temperature. Its 185 °C maximum junction temperature and MSL Level 1 rating support high-reliability automotive and industrial reflow assembly.
The device exhibits low incremental surge resistance and fast response time, enabling effective suppression of inductive switching spikes and ESD events. Clamping performance is specified at 143 A peak pulse current (IPPM) with 10.5 V VC, measured under standardized 10/1000 μs waveform conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 6.45 / 6.80 / 7.14 V at 10 mA - defines precise voltage threshold where avalanche conduction begins |
| VWM | 5.80 V - maximum continuous reverse voltage before leakage exceeds 1000 μA at 25 °C |
| VC @ IPPM | 10.5 V at 143 A - clamped voltage during 1500 W transient, critical for downstream IC voltage margining |
| PPPM | 1500 W (10/1000 μs) - peak transient energy absorption capability without failure |
| IFSM | 200 A (8.3 ms half-sine) - surge current handling for power rail fault events |
| TJ max. | +185 °C - enables operation in under-hood automotive and high-temperature industrial environments |
| Polarity | Unidirectional - cathode-banded configuration protects against positive-going transients only |
Pinout & Package
Package: SMC (DO-214AB), molded epoxy case meeting UL 94 V-0, matte tin-plated leads solderable per J-STD-002, MSL Level 1, 260 °C peak reflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts avalanche current to ground during overvoltage |
| Anode | Reference node | Typically tied to system ground or lower-potential rail; completes clamping path |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| 1500 W peak pulse power | Robust suppression of ISO 7637-2 Load Dump and IEC 61000-4-5 surge events |
| 10.5 V clamping at 143 A | Ensures protected ICs remain below absolute maximum ratings during worst-case transients |
| 185 °C junction rating | Supports placement near heat sources (e.g., power MOSFETs, DC/DC converters) without derating |
| Low incremental surge resistance | Minimizes VC rise under high di/dt, improving clamping consistency across pulse shapes |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed control modules from load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between power input and ground. Use Value: Limits voltage to ≤10.5 V during 1500 W surges, preserving MCU and CAN transceiver integrity per ISO 16750-2. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Fast-response transient suppressor on signal line with low capacitance and minimal loading. Use Value: Sub-100 ns response ensures clamping before sensitive op-amp inputs saturate or latch up. |
| Telecom Power Supply Input | Consumer Device USB Port Protection |
Use Scenario: Safeguarding AC/DC adapter outputs against lightning-induced surges on telecom infrastructure equipment. IC Role / Device Role / Timing Role: Primary-level TVS on secondary-side DC output rails. Use Value: 200 A IFSM rating withstands repetitive 8.3 ms surges without degradation, supporting long-term field reliability. |
Use Scenario: Adding robustness to USB VBUS lines in portable electronics subject to hot-plug and ESD. IC Role / Device Role / Timing Role: Standoff-rated suppressor placed upstream of USB power switch. Use Value: 5.8 V VWM allows full 5 V USB operation while clamping >6.8 V transients to 10.5 V. |
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/VC, SMB (DO-214AA) package | Reduced surge handling; suitable for non-automotive, lower-energy transients | Select when board space is constrained and 600 W peak power suffices |
| TPSMC6.8AHE3_B/H | Identical electrical specs; differs only in tape-and-reel packaging (7″ vs. 13″ reel, 850 vs. 3500 pcs) | No functional or application difference; identical use cases and layout | Choose based on production volume and SMT line feeder compatibility |
Compared with SMBJ6.8A and TPSMC6.8AHE3_B/H, the TPSMC6.8AHE3_B/I delivers higher surge robustness in the same footprint class while maintaining AEC-Q101 qualification - making it optimal for automotive and industrial designs requiring 1500 W transient immunity and traceable high-volume sourcing.
Availability
TPSMC6.8AHE3_B/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interface circuits, and telecom power supply inputs requiring stable component supply, AEC-Q101 compliance, and high-temperature operational continuity.
Supply support for TPSMC6.8AHE3_B/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 and high-temperature performance.
The TPSMC6.8AHE3_B/I belongs to Vishay's PAR® series of high-power surface-mount TVS diodes, engineered specifically for automotive and industrial systems demanding AEC-Q101 qualification, 185 °C operation, and consistent clamping under repetitive surge stress.
FAQ
What is the clamping voltage of the TPSMC6.8AHE3_B/I at its rated peak pulse current?
The TPSMC6.8AHE3_B/I has a maximum clamping voltage (VC) of 10.5 V at 143 A peak pulse current (IPPM), measured under the standard 10/1000 μs waveform. This value is critical for ensuring protected downstream components remain within their absolute maximum voltage ratings during surge events. The TPSMC6.8AHE3_B/I achieves this clamping performance while maintaining low incremental surge resistance and stable behavior up to +185 °C junction temperature.
Is the TPSMC6.8AHE3_B/I qualified for automotive applications?
Yes, the TPSMC6.8AHE3_B/I is AEC-Q101 qualified, as confirmed by Vishay's documentation and ordering code suffix "HE3", which denotes RoHS-compliant and AEC-Q101 qualified variants. It undergoes rigorous stress testing including temperature cycling, high-temperature reverse bias, and ESD verification. The TPSMC6.8AHE3_B/I is explicitly intended for automotive use cases such as engine control units, body electronics, and ADAS sensor interfaces where reliability under harsh thermal and electrical conditions is mandatory.
What is the package type and mounting specification for the TPSMC6.8AHE3_B/I?
The TPSMC6.8AHE3_B/I uses the SMC (DO-214AB) surface-mount package with dimensions of 7.11 mm × 6.22 mm × 2.90 mm and matte tin-plated leads. It requires 0.31″ × 0.31″ (8.0 mm × 8.0 mm) copper pads at each terminal for optimal thermal dissipation and surge current handling. The TPSMC6.8AHE3_B/I meets MSL Level 1 and supports peak reflow temperatures up to 260 °C per J-STD-020, making it compatible with standard lead-free assembly processes.
How does the TPSMC6.8AHE3_B/I differ from the SMBJ6.8A in practical design?
The TPSMC6.8AHE3_B/I provides 1500 W peak pulse power versus 600 W for the SMBJ6.8A, enabling stronger protection against ISO 7637-2 Load Dump and IEC 61000-4-5 surges. Both share similar VBR and VC, but the TPSMC6.8AHE3_B/I's larger SMC package offers superior thermal mass and current handling. In practice, the TPSMC6.8AHE3_B/I is selected for automotive and industrial applications where sustained surge robustness is required, whereas SMBJ6.8A suits cost-sensitive consumer designs with lower energy threats.
What is the maximum operating junction temperature for the TPSMC6.8AHE3_B/I?
The TPSMC6.8AHE3_B/I has a maximum operating junction temperature (TJ) of +185 °C, verified per Vishay's qualification and test data. This rating allows reliable operation in high-temperature environments such as under-hood automotive locations, motor drive enclosures, and industrial power supplies. Derating curves in the datasheet confirm usable power dissipation down to ambient temperatures of +125 °C without exceeding TJ limits - a key advantage over standard TVS diodes rated only to +150 °C. The TPSMC6.8AHE3_B/I maintains stable VBR and VC across this full range due to its optimized passivated anisotropic rectifier structure.
TPSMC6.8AHE3_B/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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 (SMC)
TPSMC6.8AHE3_B/I FAQ
1.How can I place an order for TPSMC6.8AHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC6.8AHE3_B/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 TPSMC6.8AHE3_B/I reliable?
The price and inventory of TPSMC6.8AHE3_B/I 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_B/I is usually 5 days.
3.What payment methods are accepted for TPSMC6.8AHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC6.8AHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC6.8AHE3_B/I?
TPSMC6.8AHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC6.8AHE3_B/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 TPSMC6.8AHE3_B/I?
For technical support, including TPSMC6.8AHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC6.8AHE3_B/I requirements.
6.How does Aetrix verify that TPSMC6.8AHE3_B/I is sourced from the original manufacturer or authorized distributors?
All TPSMC6.8AHE3_B/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 TPSMC6.8AHE3_B/I meets industry standards.
7.What is the process for return or replacement of TPSMC6.8AHE3_B/I?
All TPSMC6.8AHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC6.8AHE3_B/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 TPSMC6.8AHE3_B/I part is unused and in its original packaging.
Return procedure for TPSMC6.8AHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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