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Vishay General Semiconductor - Diodes Division TPSMB6.8A82HE3/5BT
- Part No.:
- TPSMB6.8A82HE3/5BT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB6.8A82HE3/5BT.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,493
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Product details
Overview
TPSMB6.8A82HE3/5BT from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) designed for clamping inductive switching surges and lightning-induced transients on power rails and signal lines. It features a 6.8 V breakdown voltage (VBR = 6.45–7.14 V at 10 mA), 5.8 V stand-off voltage (VWM), 600 W peak pulse power (10/1000 μs), 57.1 V clamping voltage at 57.1 A peak current, and operates up to +185 °C junction temperature - deployed in automotive sensor protection and industrial DC power input stages.
For engineers reviewing the TPSMB6.8A82HE3/5BT datasheet, TPSMB6.8A82HE3/5BT pinout, TPSMB6.8A82HE3/5BT application, or TPSMB6.8A82HE3/5BT equivalent, key selection criteria include unidirectional polarity, SMB (DO-214AA) package compatibility, AEC-Q101 qualification status, TJ = 185 °C thermal rating, and clamping performance under 10/1000 μs surge conditions.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable breakdown behavior across temperature and high reliability under repetitive surge stress. Its 10/1000 μs waveform response supports IEC 61000-4-5 Level 3/4 surge immunity in automotive and industrial environments.
The device is rated for 75 A non-repetitive forward surge current (8.3 ms half-sine), exhibits low incremental surge resistance, and maintains clamping voltage stability with ±0.047 %/°C temperature coefficient of VBR, enabling predictable overvoltage protection in thermally demanding layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 6.45–7.14 V at 10 mA - defines precise clamping initiation threshold for overvoltage events |
| Stand-off Voltage VWM | 5.8 V - maximum continuous reverse voltage before leakage exceeds 500 μA |
| Peak Pulse Power PPPM | 600 W (10/1000 μs) - sustains single high-energy transients without failure |
| Clamping Voltage VC | 10.5 V at 57.1 A IPPM - limits downstream voltage during worst-case surge |
| Operating Junction Temp. | −65 to +185 °C - enables use in under-hood automotive and high-temp industrial enclosures |
| Surge Current IPPM | 57.1 A (10/1000 μs) - quantifies maximum transient current it can shunt safely |
| Polarity | Unidirectional - protects against positive-going transients only; cathode marked |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, matte tin-plated leads, MSL Level 1 (260 °C reflow), RoHS-compliant and AEC-Q101 qualified (HE3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts surge current to ground when V > VBR |
| Anode | Reference/ground return path | Typically tied to system ground; completes clamping loop during overvoltage event |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier structure ensures stable VBR drift < ±5 % over lifetime and temperature |
| TJ = 185 °C capability | Supports placement near heat sources (e.g., power MOSFETs, DC-DC converters) without derating |
| 600 W peak pulse power | Meets IEC 61000-4-5 surge test requirements for industrial and automotive power inputs |
| Fast response time | Sub-nanosecond turn-on enables protection of fast-edge logic and analog interfaces |
| Low incremental surge resistance | Minimizes VC overshoot during high-di/dt events, improving clamping precision |
Applications
| Automotive Sensor Protection | Industrial DC Power Input |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and Hall-effect sensors from load-dump and inductive kickback in engine control units. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and chassis ground to clamp transients before they reach IC pins. Use Value: Prevents latch-up and gate oxide damage in AEC-Q100 qualified ICs by limiting voltage to ≤10.5 V during 57.1 A surges. |
Use Scenario: Safeguarding 12 V/24 V DC input rails of PLC modules and motor drives against switching surges and EFT bursts. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main supply rail, coordinated with upstream fuses and downstream LDOs. Use Value: Enables compliance with IEC 61000-4-4 (EFT) and IEC 61000-4-5 (surge) without additional RC snubbers or MOVs. |
| Consumer Power Adapter Output | Telecom Line Interface |
Use Scenario: Secondary-side transient suppression on USB-C PD and AC/DC adapter outputs feeding sensitive SoCs. IC Role / Device Role / Timing Role: Final-stage TVS after DC-DC converter, absorbing residual ringing and hot-plug spikes. Use Value: Maintains VWM = 5.8 V margin below 5 V nominal rail while delivering 600 W surge handling in SMB footprint. |
Use Scenario: Protecting Ethernet PHY and PoE controller inputs from induced lightning surges on outdoor telecom links. IC Role / Device Role / Timing Role: First-line unidirectional clamp on data pair or bias feed line, referenced to isolated ground. Use Value: Delivers 10.5 V clamping at 57.1 A with <0.1 ns response - critical for preserving signal integrity in 100BASE-TX/T1 systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.8A | Same SMB package, identical VBR range (6.45–7.14 V), but rated for 600 W at 10/1000 μs and not AEC-Q101 qualified | Lacks automotive qualification; suitable for commercial/industrial use only | Select when AEC-Q101 is not required and cost sensitivity outweighs qualification needs |
| SMCJ6.8A | Higher 1500 W PPPM rating, same VBR/VWM, but larger SMC (DO-214AB) package (7.11 × 6.22 mm vs. 4.57 × 3.94 mm) | Requires PCB layout change; used where higher surge margin is mandatory | Choose only if 600 W is insufficient and board space allows SMC footprint |
Compared with SMBJ6.8A and SMCJ6.8A, the TPSMB6.8A82HE3/5BT uniquely combines AEC-Q101 qualification, SMB footprint, and 185 °C operation - making it the only option among the three qualified for under-hood automotive deployment without package or thermal compromise.
Availability
TPSMB6.8A82HE3/5BT is available at Aetrix Electronics and suitable for automotive sensor protection, industrial DC power input, and telecom line interface applications requiring stable component supply, long-term lifecycle support, and traceable AEC-Q101 qualified sourcing.
Supply support for TPSMB6.8A82HE3/5BT 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, optoelectronics, and passive components for automotive, industrial, and computing markets.
The TPSMB6.8A82HE3/5BT belongs to Vishay's PAR® (Protected Anisotropic Rectifier) TVS family, engineered specifically for robust transient suppression in harsh thermal and electrical environments - especially where AEC-Q101 compliance and high-temperature operation are mandatory.
FAQ
What is the exact breakdown voltage tolerance of the TPSMB6.8A82HE3/5BT?
The TPSMB6.8A82HE3/5BT has a specified breakdown voltage (VBR) range of 6.45 V to 7.14 V at 10 mA test current, per Vishay Document Number 88406. This ±5 % tolerance ensures reliable clamping initiation across production lots and temperature extremes. The TPSMB6.8A82HE3/5BT achieves this using passivated anisotropic rectifier technology, which minimizes parametric drift over time and thermal cycling.
Is the TPSMB6.8A82HE3/5BT AEC-Q101 qualified?
Yes, the TPSMB6.8A82HE3/5BT is AEC-Q101 qualified, as confirmed by its HE3 suffix and documentation in Vishay's official datasheet (Rev. 23-Jan-2024, Doc. #88406). The HE3 variant meets all stress tests including HTGB, HTRB, and temperature cycling, supporting automotive under-hood deployment. The TPSMB6.8A82HE3/5BT is explicitly listed in the "AEC-Q101 qualified available" feature section.
What is the clamping voltage of the TPSMB6.8A82HE3/5BT at its rated peak pulse current?
The TPSMB6.8A82HE3/5BT clamps to a maximum of 10.5 V at its rated peak pulse current of 57.1 A (10/1000 μs waveform), per the Electrical Characteristics table in Vishay's datasheet. This low VC ensures downstream ICs remain within absolute maximum ratings during surge events. The TPSMB6.8A82HE3/5BT achieves this with low incremental surge resistance and optimized junction design.
Does the TPSMB6.8A82HE3/5BT have bidirectional polarity?
No, the TPSMB6.8A82HE3/5BT is unidirectional only, as stated in the Features section of the Vishay datasheet. It protects against positive-going transients on the cathode side relative to the anode. Polarity is indicated by a color band at the cathode end. The TPSMB6.8A82HE3/5BT does not support symmetrical AC or bipolar surge suppression - a separate bidirectional part (e.g., TPSMB6.8CA) would be required for such use cases.
What is the maximum operating junction temperature for the TPSMB6.8A82HE3/5BT?
The TPSMB6.8A82HE3/5BT has a maximum operating junction temperature (TJ) of +185 °C, verified per Vishay's thermal characterization and qualification testing. This rating enables use in high-ambient environments such as automotive engine compartments or enclosed industrial power supplies. The TPSMB6.8A82HE3/5BT maintains full electrical specifications up to this limit, with VBR drift compensated by its 0.047 %/°C temperature coefficient.
TPSMB6.8A82HE3/5BT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- 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):
- 57.1A
- 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-214AA (SMB)
TPSMB6.8A82HE3/5BT FAQ
1.How can I place an order for TPSMB6.8A82HE3/5BT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB6.8A82HE3/5BT 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 TPSMB6.8A82HE3/5BT reliable?
The price and inventory of TPSMB6.8A82HE3/5BT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMB6.8A82HE3/5BT is usually 5 days.
3.What payment methods are accepted for TPSMB6.8A82HE3/5BT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB6.8A82HE3/5BT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB6.8A82HE3/5BT?
TPSMB6.8A82HE3/5BT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB6.8A82HE3/5BT 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 TPSMB6.8A82HE3/5BT?
For technical support, including TPSMB6.8A82HE3/5BT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB6.8A82HE3/5BT requirements.
6.How does Aetrix verify that TPSMB6.8A82HE3/5BT is sourced from the original manufacturer or authorized distributors?
All TPSMB6.8A82HE3/5BT 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 TPSMB6.8A82HE3/5BT meets industry standards.
7.What is the process for return or replacement of TPSMB6.8A82HE3/5BT?
All TPSMB6.8A82HE3/5BT units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB6.8A82HE3/5BT, 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 TPSMB6.8A82HE3/5BT part is unused and in its original packaging.
Return procedure for TPSMB6.8A82HE3/5BT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB6.8A82HE3/5BT Tags
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