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Vishay General Semiconductor - Diodes Division TPSMB6.8AHE3/5BT
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- Part No.:
- TPSMB6.8AHE3/5BT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB6.8AHE3/5BT.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,250
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Product details
Overview
TPSMB6.8AHE3/5BT from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode 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 working maximum reverse voltage (VWM), 600 W peak pulse power (10/1000 µs), 10.5 V clamping voltage at 57.1 A, and operates up to +185 °C junction temperature - deployed in automotive sensor protection, industrial I/O interfaces, and consumer power supply input stages.
For engineers reviewing the TPSMB6.8AHE3/5BT datasheet, TPSMB6.8AHE3/5BT pinout, TPSMB6.8AHE3/5BT application, or TPSMB6.8AHE3/5BT equivalent, key selection criteria include unidirectional polarity, SMB (DO-214AA) package compatibility, AEC-Q101 qualification status, clamping performance under 10/1000 µs surge, and thermal derating above 25 °C ambient.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to achieve low incremental surge resistance and excellent clamping linearity. Its 185 °C maximum junction temperature enables operation in high-reliability automotive engine control units and under-hood electronics where thermal margin is critical.
The device delivers 600 W peak pulse power with a 10/1000 µs waveform at 0.01 % duty cycle and exhibits fast response time (<1 ns) to transient events. It meets J-STD-020 MSL Level 1 and passes JESD 201 Class 2 whisker testing, confirming robustness for lead-free reflow assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 6.45–7.14 V at 10 mA - defines precise clamping onset threshold for overvoltage detection |
| Working Max Reverse Voltage VWM | 5.8 V - maximum continuous DC or RMS voltage before leakage exceeds 500 µA |
| Clamping Voltage VC | 10.5 V at 57.1 A (10/1000 µs) - limits downstream IC stress during surge events |
| Peak Pulse Power PPPM | 600 W - supports high-energy transients common in automotive load-dump and inductive kick scenarios |
| Junction Temperature Range | –65 °C to +185 °C - enables deployment in extreme environments including engine compartments and industrial motor drives |
| Polarity | Unidirectional - protects against positive-going transients only; cathode marked by band |
| Package | SMB (DO-214AA) - industry-standard surface-mount outline with 0.220" × 0.130" footprint and 0.096 g unit weight |
Pinout & Package
TPSMB6.8AHE3/5BT is housed in an SMB (DO-214AA) plastic package with two terminals: cathode (marked by color band) and anode. The device is mounted on 0.2" × 0.2" copper pads per terminal for optimal thermal dissipation and surge current handling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Surge current sink node | Connected to protected line; conducts during positive transients to clamp voltage to VC |
| Anode | Reference/ground return path | Typically tied to system ground or low-impedance return plane to complete clamping loop |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard |
| TJ = 185 °C capability | Enables sustained operation in high-ambient environments without derating below rated power |
| 600 W peak pulse power (10/1000 µs) | Withstands ISO 7637-2 Pulse 1/2a/5a-level transients in 12 V automotive systems |
| Low clamping ratio (VC/VBR ≈ 1.55) | Minimizes overvoltage overshoot across protected components during fast-rising transients |
| MSL Level 1, 260 °C peak reflow | Compatible with standard lead-free SMT assembly without moisture sensitivity concerns |
Applications
| Automotive Sensor Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) from load-dump and jump-start transients in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between signal line and chassis ground to limit voltage excursions to safe levels. Use Value: Prevents latch-up or permanent damage to 5 V or 3.3 V interface ICs during 12 V system surges up to ±100 V, leveraging 10.5 V clamping at 57.1 A. |
Use Scenario: Safeguarding 24 V digital input modules in programmable logic controllers against field-wiring induced surges and relay coil flyback. IC Role / Device Role / Timing Role: Primary overvoltage clamp on dry-contact inputs, installed upstream of optocoupler or Schmitt-trigger input stages. Use Value: Maintains functional integrity under IEC 61000-4-4 level 4 (2 kV) fast transient bursts due to sub-1 ns response and stable 5.8 V standoff voltage. |
| Consumer Power Supply Input | Telecom Line Interface Protection |
Use Scenario: Secondary surge suppression on AC/DC adapter DC output rails feeding USB-C PD controllers or PMICs. IC Role / Device Role / Timing Role: Final-stage TVS shunt element after primary MOV and fuse, providing precise low-voltage clamping for sensitive downstream regulation. Use Value: Limits output overvoltage to ≤10.5 V during capacitor discharge or regulator fault, preventing damage to 5 V logic and USB enumeration circuitry. |
Use Scenario: Protecting Ethernet PHY or RS-485 transceiver pins from ESD and lightning-induced surges on building entry wiring. IC Role / Device Role / Timing Role: Point-of-entry TVS on differential pairs or single-ended bias lines, referenced to local ground plane. Use Value: Achieves IEC 61000-4-2 ±15 kV contact discharge immunity using low-capacitance design and 10.5 V clamping, preserving signal integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.8A | Same SMB package, 600 W rating, but lower TJ max (150 °C); not AEC-Q101 qualified | Limited to commercial/industrial use; unsuitable for under-hood automotive | Select when cost sensitivity outweighs automotive qualification and extended temperature needs |
| TPSMB6.8AHM3/5BT | Halogen-free variant with identical electrical specs and AEC-Q101 qualification; same HE3 mechanical form | Required for RoHS-compliant, halogen-free BOMs in EU/Asia automotive programs | Choose for compliance-driven designs where material content restrictions apply |
Compared with SMAJ6.8A and TPSMB6.8AHM3/5BT, the TPSMB6.8AHE3/5BT uniquely combines AEC-Q101 qualification, 185 °C junction rating, and RoHS compliance without halogen-free requirement - making it optimal for cost-constrained yet thermally demanding automotive subsystems.
Availability
TPSMB6.8AHE3/5BT is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC input circuits, and consumer power supply protection requiring stable component supply and long-term lifecycle support.
Supply support for TPSMB6.8AHE3/5BT 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, and passive components for automotive, industrial, and computing markets.
The TPSMB6.8AHE3/5BT belongs to Vishay's PAR® family of surface-mount TVS diodes, engineered specifically for high-temperature stability and repeatable clamping performance in harsh electromagnetic environments.
FAQ
What is the maximum clamping voltage of the TPSMB6.8AHE3/5BT under standard test conditions?
The TPSMB6.8AHE3/5BT has a maximum clamping voltage (VC) of 10.5 V when subjected to a 10/1000 µs surge current pulse of 57.1 A. This value is measured per ANSI/IEEE C62.35 and reflects the peak voltage seen across the device during transient suppression - critical for ensuring downstream ICs remain within absolute maximum ratings. The TPSMB6.8AHE3/5BT maintains this clamping performance across its full operating temperature range.
Is the TPSMB6.8AHE3/5BT qualified for automotive applications?
Yes, the TPSMB6.8AHE3/5BT is AEC-Q101 qualified, as confirmed by Vishay's documentation and ordering code suffix "HE3". It undergoes rigorous stress testing including high-temperature reverse bias, temperature cycling, and ESD per AEC-Q101 Rev D. This qualification makes the TPSMB6.8AHE3/5BT suitable for use in automotive powertrain, body control, and ADAS modules where reliability under thermal and electrical stress is mandatory.
What package type does the TPSMB6.8AHE3/5BT use, and what are its mounting requirements?
The TPSMB6.8AHE3/5BT uses the SMB (DO-214AA) surface-mount package with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. Recommended mounting uses 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads at each terminal to ensure adequate thermal dissipation and surge current handling. The device is MSL Level 1 and compatible with standard lead-free reflow profiles peaking at 260 °C.
How does the TPSMB6.8AHE3/5BT differ from the TPSMB6.8AHM3/5BT variant?
The TPSMB6.8AHE3/5BT and TPSMB6.8AHM3/5BT share identical electrical specifications, AEC-Q101 qualification, and SMB packaging. The key distinction is material composition: TPSMB6.8AHE3/5BT is RoHS-compliant and AEC-Q101 qualified, while TPSMB6.8AHM3/5BT adds halogen-free construction. Both meet JESD 201 Class 2 whisker resistance, but TPSMB6.8AHM3/5BT is selected when halogen-free compliance is mandated by regional environmental regulations.
What is the reverse leakage current specification for the TPSMB6.8AHE3/5BT at its working voltage?
At the maximum working voltage (VWM = 5.8 V) and ambient temperature of 25 °C, the TPSMB6.8AHE3/5BT exhibits a maximum reverse leakage current (IR) of 500 µA. At elevated junction temperature (TJ = 150 °C), leakage increases to a maximum of 1000 µA. These values ensure minimal standby power loss while maintaining effective transient response - a key design consideration for always-on automotive and industrial sensors.
TPSMB6.8AHE3/5BT 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 (SMBJ)
TPSMB6.8AHE3/5BT FAQ
1.How can I place an order for TPSMB6.8AHE3/5BT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB6.8AHE3/5BT 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 TPSMB6.8AHE3/5BT reliable?
The price and inventory of TPSMB6.8AHE3/5BT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMB6.8AHE3/5BT is usually 5 days.
3.What payment methods are accepted for TPSMB6.8AHE3/5BT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB6.8AHE3/5BT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB6.8AHE3/5BT?
TPSMB6.8AHE3/5BT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB6.8AHE3/5BT 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 TPSMB6.8AHE3/5BT?
For technical support, including TPSMB6.8AHE3/5BT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB6.8AHE3/5BT requirements.
6.How does Aetrix verify that TPSMB6.8AHE3/5BT is sourced from the original manufacturer or authorized distributors?
All TPSMB6.8AHE3/5BT 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 TPSMB6.8AHE3/5BT meets industry standards.
7.What is the process for return or replacement of TPSMB6.8AHE3/5BT?
All TPSMB6.8AHE3/5BT units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB6.8AHE3/5BT, 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 TPSMB6.8AHE3/5BT part is unused and in its original packaging.
Return procedure for TPSMB6.8AHE3/5BT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB6.8AHE3/5BT Tags
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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