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Vishay General Semiconductor - Diodes Division TPSMA6.8HE3_A/H
- Part No.:
- TPSMA6.8HE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
TPSMA6.8HE3_A/H.pdf
- Description:
- TVS DIODE 5.5VWM 10.8VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,627
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Product details
Overview
TPSMA6.8HE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on power and signal lines. It features a 6.8 V nominal breakdown voltage (VBR), 400 W peak pulse power (10/1000 µs), 10.5 V maximum clamping voltage at 38.1 A peak pulse current, and operates up to +185 °C junction temperature - ideal for automotive sensor line protection.
For engineers reviewing the TPSMA6.8HE3_A/H datasheet, TPSMA6.8HE3_A/H pinout, TPSMA6.8HE3_A/H application, or TPSMA6.8HE3_A/H equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, 5.8 V stand-off voltage (VWM), low 300 µA reverse leakage at VWM, and compatibility with high-reliability PCB layouts using 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to achieve stable clamping under repetitive surge conditions. Its 185 °C maximum junction temperature rating supports operation in under-hood automotive environments and industrial control enclosures where thermal derating must be minimized.
The device delivers precise transient suppression with a 0.047 %/°C temperature coefficient of VBR, enabling predictable voltage clamping across wide temperature ranges. 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 |
|---|---|
| VBR (min/typ/max) | 6.45 / 6.80 / 7.14 V - defines reliable turn-on threshold for transient clamping |
| VWM | 5.80 V - maximum continuous reverse voltage before leakage exceeds 300 µA |
| VC @ IPPM | 10.5 V at 38.1 A - clamped voltage during 400 W 10/1000 µs surge, limiting stress on downstream ICs |
| PPPM | 400 W - peak pulse power handling per single 10/1000 µs waveform, 0.01 % duty cycle |
| TJ max. | +185 °C - enables use in high-temperature automotive and industrial applications without derating |
| Polarity | Unidirectional - protects against positive-going transients only; cathode marked by band |
| Qualification | AEC-Q101 qualified (HE3 suffix) - validated for automotive-grade reliability and lifetime performance |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, matte tin-plated leads, RoHS-compliant and halogen-free (HE3 variant). Dimensions: 4.93 mm × 3.99 mm × 2.29 mm (L × W × H); cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current return path | Connected to ground or low-impedance reference; carries full surge current during clamping |
| Cathode | Transient voltage sensing node | Connected to protected line; initiates conduction when voltage exceeds VBR; marked by band |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier structure ensures stable VBR and low leakage over life and temperature |
| Clamping performance | 10.5 V clamping at 38.1 A enables effective protection of 5 V logic and CAN transceivers |
| Thermal capability | 185 °C TJ max. supports placement near heat sources without derating in engine control units |
| Assembly compatibility | MSL Level 1 rating and 260 °C peak reflow tolerance ensure robust SMT manufacturing yield |
| Automotive qualification | AEC-Q101 compliance verified for vibration, temperature cycling, and long-term reliability in automotive ECUs |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting analog sensor outputs (e.g., pressure, temperature) in engine control modules from load-dump and inductive switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between sensor output and microcontroller ADC input. Use Value: Limits transient voltage to ≤10.5 V, preventing damage to 5 V-tolerant SAR ADC inputs while maintaining signal integrity. | Use Scenario: Shielding digital input channels on programmable logic controllers from ESD and relay-coil flyback spikes in factory automation systems. IC Role / Device Role / Timing Role: Standoff protector on 24 V DC input lines, operating below 5.8 V normal voltage and clamping above 6.8 V. Use Value: Withstands 400 W surges without degradation, ensuring >100,000-cycle reliability in high-noise industrial environments. |
| Telecom Line Interface | Consumer Power Supply Clamp |
Use Scenario: Safeguarding RS-485 transceiver pins in base station backhaul equipment exposed to lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Primary transient suppressor on differential bus lines, coordinated with common-mode chokes. Use Value: Fast response time and low incremental surge resistance minimize let-through energy to <100 mJ, preserving transceiver latch-up immunity. | Use Scenario: Clamping secondary-side rectifier output in AC/DC adapters to prevent overvoltage during no-load or regulation fault conditions. IC Role / Device Role / Timing Role: Parallel-connected unidirectional TVS across 5 V output rail, triggered only during overvoltage events. Use Value: 1.0 W steady-state power dissipation allows continuous monitoring without thermal shutdown, unlike Zener-based solutions. |
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 | Same VBR (6.45–7.14 V), but SMB package (DO-214AA); 600 W PPPM; higher IPPM (64.5 A) | Larger footprint (4.57 mm × 3.94 mm); better suited for higher-energy surges where board space permits | Select SMBJ6.8A when surge energy exceeds 400 W and layout allows larger package |
| 1.5SMC6.8A | Same VBR range, but SMC package (DO-214AB); 1500 W PPPM; 226 A IPPM | Substantially larger (7.11 mm × 6.22 mm); intended for primary-level surge protection, not board-level IC protection | Choose 1.5SMC6.8A only for front-end AC/DC or telecom line protection requiring >1 kW surge handling |
Compared with SMBJ6.8A and 1.5SMC6.8A, the TPSMA6.8HE3_A/H offers optimal balance of compact SMA footprint, AEC-Q101 qualification, and 400 W clamping - making it preferred for space-constrained, automotive-grade board-level protection where precise 5.8 V standoff and 10.5 V clamping are critical.
Availability
TPSMA6.8HE3_A/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line interfaces, and consumer power supply clamp circuits requiring stable component supply, AEC-Q101 compliance, and high-temperature operational continuity.
Supply support for TPSMA6.8HE3_A/H 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, precision, and high-temperature performance.
The TPSMA6.8HE3_A/H belongs to Vishay's PAR® (Protection and Regulation) TVS family, engineered specifically for robust, high-temperature transient suppression in automotive, industrial, and telecom applications where AEC-Q101 qualification and stable clamping are mandatory.
FAQ
What is the exact breakdown voltage range for TPSMA6.8HE3_A/H?
The TPSMA6.8HE3_A/H has a guaranteed breakdown voltage (VBR) range of 6.45 V (minimum) to 7.14 V (maximum) at 10 mA test current, with 6.80 V nominal. This tight tolerance ensures consistent clamping behavior across production lots and supports reliable design margining for 5 V systems.
Is TPSMA6.8HE3_A/H qualified for automotive applications?
Yes, the TPSMA6.8HE3_A/H is AEC-Q101 qualified, as confirmed by its HE3 suffix and documentation in Vishay's 88405 datasheet. It undergoes rigorous stress testing including temperature cycling, mechanical shock, and high-temperature operating life - making it suitable for engine control units, body electronics, and ADAS sensor modules.
What is the maximum clamping voltage of TPSMA6.8HE3_A/H and at what current?
The TPSMA6.8HE3_A/H clamps to a maximum of 10.5 V at 38.1 A peak pulse current (IPPM), measured with a 10/1000 µs waveform. This value is critical for ensuring downstream 5 V ICs remain within absolute maximum ratings during surge events.
Does TPSMA6.8HE3_A/H have unidirectional or bidirectional polarity?
The TPSMA6.8HE3_A/H is unidirectional only, as explicitly stated in the Vishay datasheet. It protects against positive transients on the cathode side and must be oriented with the cathode band toward the protected line - it does not suppress negative-going surges.
What package type and mounting specifications apply to TPSMA6.8HE3_A/H?
The TPSMA6.8HE3_A/H uses the SMA (DO-214AC) package with matte tin-plated leads. Recommended PCB pad layout is 5.0 mm × 5.0 mm copper per terminal, and it complies with J-STD-020 MSL Level 1 for lead-free reflow up to 260 °C peak temperature.
TPSMA6.8HE3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- 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):
- 37A
- Power - Peak Pulse:
- 400W
- 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-214AC (SMA)
TPSMA6.8HE3_A/H FAQ
1.How can I place an order for TPSMA6.8HE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMA6.8HE3_A/H 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 TPSMA6.8HE3_A/H reliable?
The price and inventory of TPSMA6.8HE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMA6.8HE3_A/H is usually 5 days.
3.What payment methods are accepted for TPSMA6.8HE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMA6.8HE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMA6.8HE3_A/H?
TPSMA6.8HE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMA6.8HE3_A/H 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 TPSMA6.8HE3_A/H?
For technical support, including TPSMA6.8HE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMA6.8HE3_A/H requirements.
6.How does Aetrix verify that TPSMA6.8HE3_A/H is sourced from the original manufacturer or authorized distributors?
All TPSMA6.8HE3_A/H 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 TPSMA6.8HE3_A/H meets industry standards.
7.What is the process for return or replacement of TPSMA6.8HE3_A/H?
All TPSMA6.8HE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMA6.8HE3_A/H, 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 TPSMA6.8HE3_A/H part is unused and in its original packaging.
Return procedure for TPSMA6.8HE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMA6.8HE3_A/H Tags
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