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Vishay General Semiconductor - Diodes Division TPSMB6.8HE3/52T
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- Part No.:
- TPSMB6.8HE3/52T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB6.8HE3/52T.pdf
- Description:
- TVS DIODE 5.5VWM 10.8VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,752
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Product details
Overview
TPSMB6.8HE3/52T 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 peak reverse voltage (VWM), 600 W peak pulse power (10/1000 µs), 57.1 V maximum clamping voltage at 57.1 A, and operates up to TJ = 185 °C - ideal for automotive power supply protection.
For engineers reviewing the TPSMB6.8HE3/52T datasheet, TPSMB6.8HE3/52T pinout, TPSMB6.8HE3/52T application, or TPSMB6.8HE3/52T 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 employs passivated anisotropic rectifier technology optimized for high-temperature stability and low incremental surge resistance. Its junction passivation enables reliable operation at TJ = 185 °C and supports AEC-Q101 qualification when ordered with HE3 suffix.
The device responds within picoseconds to transient overvoltages and clamps at 10.5 V (typical) under 50 A forward surge, delivering stable protection for MOSFET gate drivers and microcontroller I/O lines. It meets MSL Level 1 per J-STD-020 with 260 °C reflow peak temperature tolerance.
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 | 5.8 V - maximum continuous reverse voltage before leakage exceeds 500 µA |
| VC @ IPPM | 10.5 V at 57.1 A - clamping voltage during 600 W 10/1000 µs surge, limiting downstream stress |
| PPPM | 600 W - peak pulse power handling capability under standard surge waveform |
| TJ max. | +185 °C - enables use in under-hood automotive environments without derating |
| Package | SMB (DO-214AA) - industry-standard surface-mount outline with 0.205" × 0.220" footprint |
| AEC-Q101 | Qualified - validated for automotive-grade reliability per stress test requirements |
Pinout & Package
TPSMB6.8HE3/52T uses the SMB (DO-214AA) surface-mount package with two terminals: cathode (marked by color band) and anode. The package is RoHS-compliant, halogen-free optional (HM3), and features matte tin-plated leads solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when VRM exceeded |
| Anode | Reference/ground return | Typically tied to system ground or low-impedance return path for effective clamping |
Key Features
| Feature | Design Value |
|---|---|
| 185 °C junction rating | Enables uninterrupted operation in high-ambient automotive engine control units without thermal shutdown |
| 600 W peak pulse power | Withstands ISO 7637-2 Pulse 1/2a/5a transients on 12 V vehicle power buses |
| Low clamping ratio (VC/VBR ≈ 1.55) | Minimizes overvoltage exposure to downstream ICs such as CAN transceivers and MCU power pins |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking, reducing manufacturing overhead |
| Passivated anisotropic rectifier | Delivers stable VBR drift < ±0.047 %/°C and low leakage (<500 µA at VWM) across temperature |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamping |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp surges above 5.8 V. Use Value: Limits voltage excursion to ≤10.5 V during 600 W pulses, preventing damage to LDOs and microcontrollers. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) in factory automation systems. IC Role / Device Role / Timing Role: Low-capacitance TVS on differential or single-ended signal traces near connector entry points. Use Value: Sub-1 ns response time and 57.1 A surge handling suppress ESD and relay-switching spikes without distorting mV-level signals. |
| Consumer Device USB Port Protection | Telecom DC Power Input Stage |
Use Scenario: Adding secondary surge immunity to USB VBUS lines in portable chargers and docking stations. IC Role / Device Role / Timing Role: Standoff-rated TVS placed upstream of USB power switches and polyfuses. Use Value: Withstands repeated 10/1000 µs surges while maintaining <500 µA leakage at 5.8 V, preserving standby current budget. | Use Scenario: Front-end protection for 48 V telecom power supplies against lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Unidirectional TVS on DC input rail referenced to isolated system ground. Use Value: 185 °C rating ensures long-term reliability in sealed, fanless enclosures operating at elevated ambient temperatures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.8A | Same SMB package, identical VBR range and PPPM, but rated only to TJ = 150 °C and not AEC-Q101 qualified | Not suitable for under-hood automotive use; acceptable for industrial/commercial power rails | Select SMBJ6.8A only if AEC-Q101 and >150 °C operation are not required |
| SMCJ6.8A | Larger SMC (DO-214AB) package, same electrical specs but higher IFSM (100 A vs. 75 A) and lower thermal resistance | Requires PCB layout change; preferred where higher surge repetition or thermal margin is needed | Choose SMCJ6.8A when board space allows and 100 A surge robustness is mandatory |
Compared with SMBJ6.8A and SMCJ6.8A, the TPSMB6.8HE3/52T uniquely combines AEC-Q101 qualification, 185 °C operation, and SMB footprint - making it the only drop-in solution for space-constrained automotive modules requiring extended thermal endurance.
Availability
TPSMB6.8HE3/52T is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface circuits, and telecom DC input stages requiring stable component supply and long-lifecycle support.
Supply support for TPSMB6.8HE3/52T 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 high-reliability and automotive-grade solutions.
The TPSMB series was developed specifically for high-temperature, high-surge automotive and industrial applications - delivering AEC-Q101-qualified transient suppression in compact SMB packages with extended junction temperature capability.
FAQ
What is the exact breakdown voltage range of the TPSMB6.8HE3/52T?
The TPSMB6.8HE3/52T has a guaranteed breakdown voltage range of 6.45 V to 7.14 V at 10 mA test current (IT), with a nominal value of 6.80 V. This specification is measured per ANSI/IEEE C62.35 and confirmed in Vishay's official datasheet revision 23-Jan-2024 (Document Number: 88406). The TPSMB6.8HE3/52T maintains this VBR stability across its full operating temperature range.
Is the TPSMB6.8HE3/52T AEC-Q101 qualified?
Yes, the TPSMB6.8HE3/52T is AEC-Q101 qualified. As stated in the Vishay datasheet, devices with the HE3 or HM3 suffix are explicitly qualified to AEC-Q101. The HE3 suffix denotes RoHS-compliant and AEC-Q101-qualified construction, verified through standardized stress testing including HTGB, HTRB, and temperature cycling. This qualification applies directly to the TPSMB6.8HE3/52T part number.
What is the maximum clamping voltage of the TPSMB6.8HE3/52T under surge conditions?
The TPSMB6.8HE3/52T exhibits a maximum clamping voltage (VC) of 10.5 V at 57.1 A peak pulse current (IPPM) using the standard 10/1000 µs waveform. This value is specified in the Electrical Characteristics table of the Vishay datasheet and reflects worst-case clamping performance under defined surge conditions. The TPSMB6.8HE3/52T achieves this low clamping level due to its optimized passivated anisotropic rectifier structure.
Does the TPSMB6.8HE3/52T have bidirectional polarity?
No, the TPSMB6.8HE3/52T is unidirectional only. The Vishay datasheet explicitly states "Available in unidirectional polarity only" for the entire TPSMB6.8A–TPSMB43A family. Polarity is indicated by a cathode band on the SMB package, and the device conducts only when the cathode is at higher potential than the anode. Bidirectional variants are not offered in this series; the TPSMB6.8HE3/52T must be oriented correctly in-circuit for proper protection.
What is the package type and mounting compatibility of the TPSMB6.8HE3/52T?
The TPSMB6.8HE3/52T uses the SMB (DO-214AA) surface-mount package with standardized dimensions: 0.205" × 0.220" body size and 0.030"–0.060" lead thickness. It is compatible with standard reflow profiles (MSL Level 1, 260 °C peak), and its matte tin-plated leads meet J-STD-002 solderability requirements. The TPSMB6.8HE3/52T mounts directly onto 0.2" × 0.2" copper pads per terminal, as defined in the Vishay mechanical drawings.
TPSMB6.8HE3/52T 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):
- 5.5V
- Voltage - Breakdown (Min):
- 6.12V
- Voltage - Clamping (Max) @ Ipp:
- 10.8V
- Current - Peak Pulse (10/1000µs):
- 55.6A
- 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)
TPSMB6.8HE3/52T FAQ
1.How can I place an order for TPSMB6.8HE3/52T through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB6.8HE3/52T 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 TPSMB6.8HE3/52T reliable?
The price and inventory of TPSMB6.8HE3/52T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMB6.8HE3/52T is usually 5 days.
3.What payment methods are accepted for TPSMB6.8HE3/52T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB6.8HE3/52T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB6.8HE3/52T?
TPSMB6.8HE3/52T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB6.8HE3/52T 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 TPSMB6.8HE3/52T?
For technical support, including TPSMB6.8HE3/52T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB6.8HE3/52T requirements.
6.How does Aetrix verify that TPSMB6.8HE3/52T is sourced from the original manufacturer or authorized distributors?
All TPSMB6.8HE3/52T 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 TPSMB6.8HE3/52T meets industry standards.
7.What is the process for return or replacement of TPSMB6.8HE3/52T?
All TPSMB6.8HE3/52T units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB6.8HE3/52T, 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 TPSMB6.8HE3/52T part is unused and in its original packaging.
Return procedure for TPSMB6.8HE3/52T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB6.8HE3/52T Tags
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