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Vishay General Semiconductor - Diodes Division TPSMC6.8AHE3/57T
- Part No.:
- TPSMC6.8AHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC6.8AHE3/57T.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,818
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Product details
Overview
TPSMC6.8AHE3/57T 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 clamping voltage at 143 A, and operates up to +185 °C junction temperature - ideal for automotive power rail protection.
For engineers reviewing the TPSMC6.8AHE3/57T datasheet, TPSMC6.8AHE3/57T pinout, TPSMC6.8AHE3/57T application, or TPSMC6.8AHE3/57T equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, MSL Level 1 rating, 1000 µA max reverse leakage at VWM, and compatibility with high-reliability automotive and industrial PCB layouts requiring robust surge immunity.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable clamping performance under repetitive surge stress. Its 185 °C maximum junction temperature and J-STD-020-compliant solderability support operation in under-hood automotive environments and high-power industrial converters.
The device responds in sub-nanosecond time to transients induced by inductive switching or ESD events, with low incremental surge resistance ensuring minimal voltage overshoot during 10/1000 µs surges up to 143 A. Its cathode-band polarity marking and DO-214AB footprint align with standard SMC assembly processes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 6.45 / 6.80 / 7.14 V - ensures reliable conduction onset above normal operating voltage while avoiding false triggering |
| VWM | 5.80 V - maximum continuous reverse voltage before leakage exceeds 1000 µA, suitable for 5 V rail protection |
| VC @ IPPM | 10.5 V - clamped voltage at 143 A peak pulse, limiting downstream IC stress during 1500 W transients |
| PPPM | 1500 W - peak pulse power handling per 10/1000 µs waveform, validated on 8 mm × 8 mm copper pads |
| TJ max. | +185 °C - enables use in high-temperature automotive engine control units without derating |
| Polarity | Unidirectional - protects against positive-going transients only; requires correct orientation in series with protected line |
| MSL Level | Level 1 (260 °C peak reflow) - supports standard lead-free SMT assembly without moisture sensitivity concerns |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, cathode indicated by color band. Dimensions: 7.11 mm × 6.22 mm × 2.90 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during clamping | Connected to protected line (e.g., 5 V supply); conducts when transient exceeds VBR |
| Cathode | Current exit point during clamping | Connected to ground reference; marked by visible band; defines unidirectional conduction direction |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing |
| 185 °C junction capability | Enables direct placement near heat sources (e.g., power MOSFETs) without thermal derating in engine control modules |
| 1500 W peak pulse power | Withstands ISO 7637-2 Pulse 1/2a/5a transients and IEC 61000-4-5 surge events on 12 V systems |
| Low clamping ratio (VC/VBR ≈ 1.54) | Minimizes overvoltage stress on downstream components compared to higher-ratio TVS devices |
| MSL Level 1 rating | Eliminates bake-out requirement prior to reflow, reducing manufacturing cost and cycle time |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 5 V microcontroller power inputs in engine control units exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between VIN and GND, activated within <1 ns of overvoltage event. Use Value: Limits transient voltage to ≤10.5 V at 143 A, preventing latch-up or permanent damage to MCU power domains. | Use Scenario: Shielding analog output lines of pressure sensors in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: TVS diode installed across signal and ground traces to absorb ESD and switching noise from nearby solenoid drivers. Use Value: Maintains signal integrity by clamping fast transients below ADC input damage threshold while adding <0.5 pF capacitance. |
| Consumer USB Power Delivery Protection | Telecom DC Power Input Protection |
Use Scenario: Safeguarding USB-C PD controller VBUS inputs in portable chargers subjected to hot-plug surges and cable-induced spikes. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 5–20 V input path, coordinated with upstream fuse and secondary filtering. Use Value: Withstands repeated 10/1000 µs surges up to 1500 W without degradation, meeting USB-IF compliance requirements. | Use Scenario: Securing -48 V DC telecom power feeds against lightning-induced surges entering central office equipment. IC Role / Device Role / Timing Role: First-stage transient suppressor mounted at chassis entry point, preceding DC-DC converter input stage. Use Value: Provides 1500 W surge capacity with 185 °C thermal stability, enabling uninterrupted operation in outdoor cabinet environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.8A | Lower PPPM (400 W), same SMC package, identical VBR/VWM specs but reduced surge current (43.4 A vs. 143 A) | Not qualified to AEC-Q101; limited to commercial/industrial use where 1500 W surge immunity is not required | Select SMAJ6.8A only for cost-sensitive non-automotive designs with lower surge exposure. |
| TPSMC6.8AHE3/TR13 | Identical electrical specs and AEC-Q101 qualification; differs only in tape-and-reel packaging (3500 pcs/reel vs. 850 pcs/reel) | No functional difference; same PCB layout, thermal profile, and reliability performance | Choose TPSMC6.8AHE3/TR13 for high-volume automated assembly requiring larger reel quantities. |
Compared with SMAJ6.8A and TPSMC6.8AHE3/TR13, the TPSMC6.8AHE3/57T delivers superior surge robustness for automotive applications while maintaining drop-in compatibility with other HE3-suffix variants - making it optimal for safety-critical 12 V/24 V systems demanding 1500 W immunity and zero-layout change upgrades.
Availability
TPSMC6.8AHE3/57T is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface design, and telecom DC input hardening requiring stable component supply and long-term lifecycle assurance.
Supply support for TPSMC6.8AHE3/57T 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 performance.
The TPSMC6.8AHE3/57T belongs to Vishay's PAR® family of high-power surface-mount TVS diodes, engineered specifically for harsh-environment transient suppression in automotive, industrial, and telecom infrastructure applications.
FAQ
What is the maximum clamping voltage of the TPSMC6.8AHE3/57T at its rated peak pulse current?
The TPSMC6.8AHE3/57T has a maximum clamping voltage (VC) of 10.5 V at its peak pulse current (IPPM) of 143 A, measured under the standard 10/1000 µs waveform condition. This value is guaranteed across the full operating temperature range and ensures downstream circuitry remains within safe voltage limits during surge events. The TPSMC6.8AHE3/57T achieves this with low incremental surge resistance, minimizing voltage overshoot beyond the specified clamping level.
Is the TPSMC6.8AHE3/57T qualified for automotive applications?
Yes, the TPSMC6.8AHE3/57T is AEC-Q101 qualified and manufactured with RoHS-compliant, halogen-free materials (HE3 suffix). It meets stringent automotive reliability requirements including high-temperature operation up to +185 °C junction temperature, MSL Level 1 reflow compatibility, and robust surge endurance - making it suitable for engine control units, body electronics, and ADAS power systems. The TPSMC6.8AHE3/57T carries the "HE3" automotive ordering code explicitly designated for qualified versions.
What does the "HE3" suffix indicate in TPSMC6.8AHE3/57T?
The "HE3" suffix in TPSMC6.8AHE3/57T denotes Vishay's automotive-grade variant: RoHS-compliant, AEC-Q101 qualified, and tested to JESD201 Class 2 whisker resistance. It also confirms compliance with MSL Level 1 and 260 °C peak reflow. The "57T" denotes tape-and-reel packaging with 850 units per 7-inch reel. The TPSMC6.8AHE3/57T is therefore fully traceable, automotive-qualified, and ready for high-reliability SMT production.
Can the TPSMC6.8AHE3/57T be used in bidirectional configurations?
No, the TPSMC6.8AHE3/57T is unidirectional only, as confirmed in the Vishay datasheet. It conducts and clamps only for positive transients relative to ground (anode-to-cathode forward bias). For bidirectional protection, two TPSMC6.8AHE3/57T devices must be connected in series opposition, or a dedicated bidirectional TVS such as TPSMC6.8CAHE3/57T should be selected. Using the TPSMC6.8AHE3/57T in reverse-biased configuration will not provide clamping.
What is the reverse leakage current specification for the TPSMC6.8AHE3/57T at 25 °C and 150 °C?
At 25 °C and VWM = 5.80 V, the TPSMC6.8AHE3/57T exhibits a maximum reverse leakage current (IR) of 1000 µA. At elevated temperature (TJ = 150 °C), the maximum leakage increases to 10,000 µA under the same VWM condition. These values are specified in the Vishay datasheet Table "ELECTRICAL CHARACTERISTICS" and reflect the device's thermal stability trade-off - the TPSMC6.8AHE3/57T maintains safe operation even with increased leakage at high ambient temperatures.
TPSMC6.8AHE3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- 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):
- 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 (SMCJ)
TPSMC6.8AHE3/57T FAQ
1.How can I place an order for TPSMC6.8AHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC6.8AHE3/57T 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 TPSMC6.8AHE3/57T reliable?
The price and inventory of TPSMC6.8AHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMC6.8AHE3/57T is usually 5 days.
3.What payment methods are accepted for TPSMC6.8AHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC6.8AHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC6.8AHE3/57T?
TPSMC6.8AHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC6.8AHE3/57T 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 TPSMC6.8AHE3/57T?
For technical support, including TPSMC6.8AHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC6.8AHE3/57T requirements.
6.How does Aetrix verify that TPSMC6.8AHE3/57T is sourced from the original manufacturer or authorized distributors?
All TPSMC6.8AHE3/57T 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 TPSMC6.8AHE3/57T meets industry standards.
7.What is the process for return or replacement of TPSMC6.8AHE3/57T?
All TPSMC6.8AHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC6.8AHE3/57T, 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 TPSMC6.8AHE3/57T part is unused and in its original packaging.
Return procedure for TPSMC6.8AHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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