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Vishay General Semiconductor - Diodes Division TPSMA6.8AHE3_A/H
- Part No.:
- TPSMA6.8AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
TPSMA6.8AHE3_A/H.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,944
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Product details
Overview
TPSMA6.8AHE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for clamping inductive switching transients and lightning-induced surges. It features a 6.8 V breakdown voltage (VBR = 6.45–7.14 V at 10 mA), 400 W peak pulse power (10/1000 µs), 10.5 V maximum clamping voltage at 38.1 A, 5.8 V stand-off voltage, and operates up to 185 °C junction temperature. It protects MOSFETs and ICs in automotive power supply rails.
For engineers reviewing the TPSMA6.8AHE3_A/H datasheet, TPSMA6.8AHE3_A/H pinout, TPSMA6.8AHE3_A/H application, or TPSMA6.8AHE3_A/H equivalent, key selection criteria include unidirectional polarity, SMA (DO-214AC) package compatibility, AEC-Q101 qualification status, TJ = 185 °C capability, and verified clamping performance under 10/1000 µs surge conditions.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology with junction passivation optimized for high-temperature stability. Its unidirectional architecture provides low incremental surge resistance and fast response time to suppress transients before downstream components are damaged.
The device is rated for 400 W peak pulse power per 10/1000 µs waveform at 25 °C, derated linearly above TA = 25 °C, and supports repetitive surge duty cycles up to 0.01 %. It meets MSL Level 1 per J-STD-020 with 260 °C lead-free 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 reliably |
| VWM | 5.8 V - maximum continuous reverse voltage before leakage exceeds 300 µA, sets safe operating margin below VBR |
| VC @ IPPM | 10.5 V at 38.1 A - clamping voltage during 400 W surge, determines worst-case overvoltage seen by protected circuit |
| PPPM | 400 W (10/1000 µs) - peak transient energy absorption capacity without failure under standardized surge waveform |
| TJ max. | 185 °C - enables operation in under-hood automotive environments and high-power industrial enclosures |
| Polarity | Unidirectional - blocks reverse current only; requires correct orientation relative to protected line polarity |
| Package | SMA (DO-214AC) - industry-standard surface-mount outline with 0.208" x 0.157" footprint and cathode band marking |
Pinout & Package
TPSMA6.8AHE3_A/H is housed in an SMA (DO-214AC) plastic package with matte tin-plated leads solderable per J-STD-002. The cathode is marked by a color band on the body end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to lower-potential side of protected line; forms return path during clamping |
| Cathode | Current exit terminal during forward conduction; avalanche node during reverse surge | Connected to higher-potential side (e.g., VIN rail); absorbs surge energy into ground or low-impedance sink |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per stress test requirements |
| Junction passivation | Reduces surface leakage and improves long-term stability under high humidity and bias stress |
| MSL Level 1 rating | Enables standard SMT assembly without dry-pack or baking; compatible with 260 °C Pb-free reflow profiles |
| Low clamping ratio (VC/VBR) | ~1.54 - tight voltage control ensures minimal overvoltage exposure to sensitive downstream ICs |
| High IFSM | 40 A (8.3 ms half-sine) - withstands repeated inrush or fault currents without bond wire fusing |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Suppressing load-dump transients on 12 V battery-fed ECUs and body control modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBAT and ground to clamp spikes up to ±120 V. Use Value: Prevents latch-up or gate oxide damage in MCU power regulators and CAN transceivers during ISO 7637-2 Pulse 5a events. | Use Scenario: Protecting analog front-end inputs of pressure/temperature sensors connected to long harnesses. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to shunt ESD and inductive kickback before signal conditioning amplifiers. Use Value: Maintains sub-1 µA leakage at 5.8 V to avoid DC offset errors while clamping 30 kV HBM ESD pulses to <12 V. |
| Consumer USB Port Surge Suppression | Telecom Line Card Transient Protection |
Use Scenario: Safeguarding USB-C power delivery circuits against hot-plug induced transients and cable discharge events. IC Role / Device Role / Timing Role: Unidirectional TVS on VBUS line upstream of buck converter and USB PD controller. Use Value: Clamps 10/1000 µs surges to ≤10.5 V within 1 ns, preserving USB PD negotiation integrity and preventing overvoltage shutdown. | Use Scenario: Shielding Ethernet PHY interfaces and PoE injectors from lightning-induced common-mode surges on twisted-pair lines. IC Role / Device Role / Timing Role: TVS array element used in conjunction with common-mode chokes and gas discharge tubes for multi-stage protection. Use Value: Provides low-capacitance (<100 pF) clamping that avoids signal integrity degradation at 100 MHz while handling 400 W surge energy. |
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 | Same SMA package, identical VBR range (6.45–7.14 V), but rated for 400 W with 8.3 ms half-sine waveform instead of 10/1000 µs; lower clamping voltage (11.2 V @ 35.2 A) | Preferred for applications dominated by short-duration inrush rather than long-tail transients like inductive switch-off | Select SMAJ6.8A when surge profile matches JEDEC 8.3 ms testing and layout allows slightly higher VC margin |
| 1.5SMC6.8A | Larger SMC (DO-214AB) package, same electrical specs, 1.5 kW peak power rating, higher thermal mass | Suitable for high-reliability industrial power supplies where board space permits larger footprint and higher surge endurance is required | Choose 1.5SMC6.8A when PCB layout accommodates 0.295" × 0.236" footprint and system-level surge testing exceeds 400 W single-event requirement |
Compared with SMAJ6.8A and 1.5SMC6.8A, the TPSMA6.8AHE3_A/H offers AEC-Q101 qualification and MSL Level 1 compatibility out-of-box, making it the preferred choice for automotive production and high-volume consumer electronics requiring zero-bake SMT assembly.
Availability
TPSMA6.8AHE3_A/H is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface protection, and consumer USB port surge suppression requiring stable component supply across extended temperature ranges and high-reliability manufacturing.
Supply support for TPSMA6.8AHE3_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 high-reliability and automotive-grade solutions.
The TPSMA6.8AHE3_A/H belongs to Vishay's PAR® family of surface-mount TVS diodes engineered specifically for robust transient suppression in harsh environments-targeting automotive, industrial, and telecom infrastructure applications demanding AEC-Q101 compliance and 185 °C operation.
FAQ
What is the exact breakdown voltage range for TPSMA6.8AHE3_A/H at 10 mA test current?
The TPSMA6.8AHE3_A/H has a guaranteed breakdown voltage range of 6.45 V (minimum) to 7.14 V (maximum) at 10 mA test current, with a nominal value of 6.80 V. This specification is measured per ANSI/IEEE C62.35 and confirmed in the Vishay Document Number 88405, Revision 23-Jan-2024. The TPSMA6.8AHE3_A/H maintains this VBR tolerance across its full operating temperature range when derated using αT = 0.047 %/°C.
Is TPSMA6.8AHE3_A/H qualified to AEC-Q101, and what does that mean for automotive use?
Yes, TPSMA6.8AHE3_A/H is AEC-Q101 qualified, as indicated by the "HE3" suffix in its ordering code. This certification confirms it has passed stress tests including high-temperature reverse bias, temperature cycling, and ESD per JESD22 standards. For automotive applications, the TPSMA6.8AHE3_A/H is approved for use in engine control units, body electronics, and infotainment systems where reliability under thermal and mechanical stress is critical.
What is the maximum clamping voltage of TPSMA6.8AHE3_A/H, and at what current is it specified?
The maximum clamping voltage (VC) of TPSMA6.8AHE3_A/H is 10.5 V, measured at the peak pulse current (IPPM) of 38.1 A under a 10/1000 µs waveform. This value represents the highest voltage the TPSMA6.8AHE3_A/H will allow across its terminals during a standardized surge event, ensuring downstream components remain within safe operating limits.
Does TPSMA6.8AHE3_A/H have a unidirectional or bidirectional configuration, and how is polarity identified?
The TPSMA6.8AHE3_A/H is unidirectional only, meaning it conducts avalanche current in reverse bias only and blocks forward current like a standard diode. Polarity is identified by a visible cathode band on the device body; the banded end is the cathode and must be connected toward the higher-potential side of the protected line (e.g., VIN or signal line).
What is the package type and moisture sensitivity level (MSL) rating for TPSMA6.8AHE3_A/H?
The TPSMA6.8AHE3_A/H uses the SMA (DO-214AC) surface-mount package with matte tin-plated leads and is rated MSL Level 1 per J-STD-020. This means it can be stored indefinitely at ambient conditions and processed through standard Pb-free reflow profiles with a peak temperature of 260 °C without baking or dry-pack requirements.
TPSMA6.8AHE3_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):
- 5.8V
- Voltage - Breakdown (Min):
- 6.45V
- Voltage - Clamping (Max) @ Ipp:
- 10.5V
- Current - Peak Pulse (10/1000µs):
- 38.1A
- 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)
TPSMA6.8AHE3_A/H FAQ
1.How can I place an order for TPSMA6.8AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMA6.8AHE3_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 TPSMA6.8AHE3_A/H reliable?
The price and inventory of TPSMA6.8AHE3_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 TPSMA6.8AHE3_A/H is usually 5 days.
3.What payment methods are accepted for TPSMA6.8AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMA6.8AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMA6.8AHE3_A/H?
TPSMA6.8AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMA6.8AHE3_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 TPSMA6.8AHE3_A/H?
For technical support, including TPSMA6.8AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMA6.8AHE3_A/H requirements.
6.How does Aetrix verify that TPSMA6.8AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All TPSMA6.8AHE3_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 TPSMA6.8AHE3_A/H meets industry standards.
7.What is the process for return or replacement of TPSMA6.8AHE3_A/H?
All TPSMA6.8AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMA6.8AHE3_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 TPSMA6.8AHE3_A/H part is unused and in its original packaging.
Return procedure for TPSMA6.8AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMA6.8AHE3_A/H Tags
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