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Vishay General Semiconductor - Diodes Division TPSMC6.8AHE3_A/H
- Part No.:
- TPSMC6.8AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
TPSMC6.8AHE3_A/H.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,075
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Product details
Overview
TPSMC6.8AHE3_A/H 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 a 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 surge current, and operates up to +185 °C junction temperature - ideal for automotive power rail protection.
For engineers reviewing the TPSMC6.8AHE3_A/H datasheet, TPSMC6.8AHE3_A/H pinout, TPSMC6.8AHE3_A/H application, or TPSMC6.8AHE3_A/H 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 ESD and load-dump 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 within picoseconds to transients and maintains low incremental surge resistance during 10/1000 µs waveform events. Its cathode-band polarity marking and DO-214AB mechanical outline ensure consistent orientation and thermal dissipation on 8.0 mm × 8.0 mm copper pads per terminal.
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, compatible with 5 V logic and supply rails |
| VC @ IPPM | 10.5 V - clamps 143 A surge current to safe levels for downstream MOSFETs and ICs |
| PPPM | 1500 W - handles automotive load-dump and inductive switching surges without failure |
| TJ max. | +185 °C - enables use in engine control units and power inverters without derating |
| IR @ VWM | 1000 µA - low leakage preserves battery life in always-on automotive modules |
| MSL Level | Level 1 (260 °C peak) - supports standard reflow without moisture-related cracking |
Pinout & Package
Package: SMC (DO-214AB), molded epoxy case meeting UL 94 V-0; matte tin-plated leads; cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to protected line (e.g., 5 V rail); conducts only during overvoltage clamping |
| Cathode | Current exit point during clamping | Connected to ground or lower-potential reference; defines unidirectional suppression direction |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance |
| 1500 W peak pulse power | Withstands ISO 7637-2 Pulse 5a (load dump) up to 143 A without degradation |
| Low clamping ratio (VC/VBR ≈ 1.54) | Minimizes voltage overshoot across protected components during fast transients |
| Junction temperature capability to +185 °C | Eliminates need for thermal derating in high-ambient under-hood applications |
| Passivated anisotropic rectifier design | Ensures stable VBR over lifetime and prevents parameter drift under humidity stress |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 5 V microcontroller power inputs in body control modules exposed to ISO 7637-2 load-dump pulses. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between VIN and GND to limit transient voltage to ≤10.5 V. Use Value: Prevents latch-up and gate oxide damage in MCU power domains while maintaining <1000 µA standby leakage. | Use Scenario: Safeguarding analog outputs of pressure sensors in factory automation systems subject to relay-induced switching noise. IC Role / Device Role / Timing Role: TVS diode installed across sensor output and ground to shunt EFT bursts before reaching ADC input. Use Value: Clamps 4 kV EFT events to <11 V within nanoseconds, preserving 12-bit measurement accuracy. |
| Consumer USB Power Delivery Protection | Telecom DC Power Input Protection |
Use Scenario: Securing 5 V VBUS lines in USB-C PD adapters against hot-plug and cable discharge events. IC Role / Device Role / Timing Role: Standoff-rated TVS placed inline with VBUS to absorb ±8 kV contact ESD per IEC 61000-4-2. Use Value: Maintains 5.8 V hold-off while clamping 30 A ESD pulses to 10.5 V, preventing USB controller reset. | Use Scenario: Shielding -48 V telecom power feeds from lightning-induced surges in remote radio units. IC Role / Device Role / Timing Role: TVS array element used in series with PTC fuse to limit let-through energy to PoE-powered equipment. Use Value: Delivers 1500 W surge handling at elevated ambient temperatures without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.8AHE3/A | Lower PPPM (600 W), same VBR and VWM, SMB (DO-214AA) package with smaller pad area | Limited to lower-energy transients; not rated for full automotive load-dump compliance | Select when board space is constrained and surge energy remains below 600 W |
| TPSMC6.8AHM3_A/H | Identical electrical specs; halogen-free molding compound and whisker-tested terminations | Required for RoHS+halogen-free compliance programs; identical thermal and clamping behavior | Choose for green manufacturing initiatives without sacrificing performance or layout |
Compared with TPSMC6.8AHE3_A/H, SMBJ6.8AHE3/A offers reduced surge margin in a smaller footprint, while TPSMC6.8AHM3_A/H provides identical protection with enhanced material compliance - enabling direct substitution where halogen-free content is mandated.
Availability
TPSMC6.8AHE3_A/H is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, consumer USB power delivery circuits, and telecom DC input stages requiring stable component supply with AEC-Q101 validation and high-temperature resilience.
Supply support for TPSMC6.8AHE3_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, rectifiers, TVS devices, and optoelectronics with emphasis on reliability and high-temperature performance.
The TPSMC series belongs to Vishay's PAR® family of high-power surface-mount TVS diodes, engineered specifically for automotive and industrial applications demanding AEC-Q101 qualification, 185 °C operation, and robust 1500 W surge immunity.
FAQ
What is the maximum clamping voltage of the TPSMC6.8AHE3_A/H at its rated peak pulse current?
The TPSMC6.8AHE3_A/H has a maximum clamping voltage (VC) of 10.5 V at its peak pulse current (IPPM) of 143 A, measured using a 10/1000 µs waveform. This value is guaranteed across the full operating temperature range and ensures protected circuitry remains below critical voltage thresholds during surge events. The TPSMC6.8AHE3_A/H achieves this with low incremental surge resistance and stable junction characteristics.
Is the TPSMC6.8AHE3_A/H qualified for automotive applications?
Yes, the TPSMC6.8AHE3_A/H is AEC-Q101 qualified and carries the HE3 suffix indicating RoHS compliance and automotive-grade reliability testing. It meets requirements for temperature cycling, high-temperature reverse bias, and surge endurance per AEC-Q101 Rev G. The TPSMC6.8AHE3_A/H is explicitly intended for use in engine control units, body electronics, and ADAS power domains where 185 °C operation is required.
What does the "HE3" suffix mean in TPSMC6.8AHE3_A/H?
The "HE3" suffix in TPSMC6.8AHE3_A/H denotes a RoHS-compliant, AEC-Q101-qualified version with matte tin-plated leads that pass JESD 201 Class 2 whisker testing and J-STD-002 solderability standards. The "_A/H" indicates revision A and packaging in 7″ tape-and-reel (H = 850 units). The TPSMC6.8AHE3_A/H is distinct from HM3 versions, which add halogen-free compound compliance.
Can the TPSMC6.8AHE3_A/H be used in bidirectional configurations?
No, the TPSMC6.8AHE3_A/H is unidirectional only, as confirmed in the Vishay datasheet. It conducts current from anode to cathode during reverse-biased clamping and blocks forward current above ~3.5 V. For bidirectional protection, two TPSMC6.8AHE3_A/H devices must be connected in series opposition, or a dedicated bidirectional part like TPSMC6.8CAHE3_A/H should be selected instead.
What is the thermal derating behavior of the TPSMC6.8AHE3_A/H above 25 °C ambient?
The TPSMC6.8AHE3_A/H follows a defined derating curve per Figure 2 in the datasheet: peak pulse power decreases linearly from 1500 W at 25 °C to approximately 750 W at 125 °C ambient, assuming mounting on 8.0 mm × 8.0 mm copper pads. Derating is based on initial junction temperature, not ambient alone, and the TPSMC6.8AHE3_A/H retains full functionality up to TJ = 185 °C regardless of ambient conditions.
TPSMC6.8AHE3_A/H 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_A/H FAQ
1.How can I place an order for TPSMC6.8AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMC6.8AHE3_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 TPSMC6.8AHE3_A/H reliable?
The price and inventory of TPSMC6.8AHE3_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 TPSMC6.8AHE3_A/H is usually 5 days.
3.What payment methods are accepted for TPSMC6.8AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMC6.8AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMC6.8AHE3_A/H?
TPSMC6.8AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMC6.8AHE3_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 TPSMC6.8AHE3_A/H?
For technical support, including TPSMC6.8AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMC6.8AHE3_A/H requirements.
6.How does Aetrix verify that TPSMC6.8AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All TPSMC6.8AHE3_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 TPSMC6.8AHE3_A/H meets industry standards.
7.What is the process for return or replacement of TPSMC6.8AHE3_A/H?
All TPSMC6.8AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMC6.8AHE3_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 TPSMC6.8AHE3_A/H part is unused and in its original packaging.
Return procedure for TPSMC6.8AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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