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Vishay General Semiconductor - Diodes Division TPSMA8.2HE3/5AT
- Part No.:
- TPSMA8.2HE3/5AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
TPSMA8.2HE3/5AT.pdf
- Description:
- TVS DIODE 6.63VWM 12.5VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,582
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Product details
Overview
TPSMA8.2HE3/5AT 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 8.2 V nominal breakdown voltage (VBR), 7.02 V stand-off voltage (VWM), 33.1 V maximum clamping voltage (VC) at 200 A peak pulse current, 400 W peak pulse power (10/1000 µs), and operates up to +185 °C junction temperature - ideal for automotive ECU protection against load dump and inductive switching.
For engineers reviewing the TPSMA8.2HE3/5AT datasheet, TPSMA8.2HE3/5AT pinout, TPSMA8.2HE3/5AT application, or TPSMA8.2HE3/5AT equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal derating behavior, clamping performance under surge, and RoHS-compliant packaging details essential for automotive-grade circuit protection design.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to achieve stable breakdown characteristics across temperature and high reliability under repetitive surge stress. Its unidirectional polarity enables integration into DC-biased lines without reverse conduction concerns, and its 10/1000 µs waveform rating reflects real-world lightning and inductive-switching transient profiles.
The device is rated for 40 A non-repetitive forward surge current (IFSM) and exhibits low incremental surge resistance, enabling tight clamping with minimal voltage overshoot. Its MSL Level 1 moisture sensitivity and 260 °C lead-free reflow compatibility support automated SMT assembly in high-volume automotive production.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 7.79 / 8.20 / 8.61 V - defines precise voltage threshold where avalanche conduction begins under 10 mA test current |
| VWM | 7.02 V - maximum continuous reverse operating voltage before leakage exceeds 50 µA |
| VC @ IPPM | 33.1 V at 200 A - clamped voltage during 400 W transient, limiting downstream IC stress |
| PPPM | 400 W (10/1000 µs) - peak power handling capacity for standardized surge events |
| TJ max. | +185 °C - enables operation in under-hood automotive environments without thermal derating penalties |
| IR @ VWM | 50 µA at 25 °C - low leakage preserves battery life in always-on vehicle modules |
| αT | 0.056 %/°C - predictable VBR drift over temperature supports robust margining |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, cathode indicated by molded band. Dimensions: 4.93 mm × 3.99 mm × 2.29 mm (L × W × H), with 2.54 mm lead pitch and matte tin-plated terminals compliant with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction or transient clamp path | Connected to protected line's lower-potential side (e.g., ground or return path) |
| Cathode | Current exit point during avalanche clamping | Connected to protected line's higher-potential side (e.g., supply rail or signal source); marked by color band |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTGB, AC/HTRB, and temperature cycling |
| MSL Level 1 | Zero floor life limitation - can be stored indefinitely before reflow without baking |
| 185 °C junction rating | Eliminates derating in engine control units, transmission controllers, and ADAS sensor housings |
| 400 W peak pulse power | Withstands ISO 7637-2 Pulse 1, 2a, 3a/b, and IEC 61000-4-5 Level 4 surges without failure |
| Low clamping ratio (VC/VBR ≈ 4.0) | Minimizes overvoltage exposure to downstream MOSFETs, CAN transceivers, and microcontrollers |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamping |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump transients exceeding 40 V during alternator regulation failure. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to shunt surge energy before it reaches LDOs and MCU power pins. Use Value: Clamps peak voltage to ≤33.1 V at 200 A, preserving 3.3 V/5 V logic supply integrity and avoiding brownout resets. | Use Scenario: Safeguarding analog outputs of pressure sensors in factory automation systems exposed to relay coil flyback. IC Role / Device Role / Timing Role: TVS connected across sensor output and reference ground to absorb 100 ns–1 µs inductive spikes. Use Value: Limits transient excursion to <33.1 V while maintaining sub-50 µA leakage at 7.02 V, preventing ADC input saturation. |
| Telecom DC Power Input Protection | Consumer USB-C Port ESD/Surge Suppression |
Use Scenario: Front-end protection of PoE-powered network switches against induced surges on 48 V DC input lines. IC Role / Device Role / Timing Role: Primary clamping device on DC input before DC-DC converter, sized for repetitive 400 W pulses. Use Value: Withstands 0.01 % duty cycle surges without degradation, ensuring >10-year field reliability in outdoor cabinets. | Use Scenario: Secondary-level surge suppression on VBUS line of USB-C receptacles in portable monitors and docking stations. IC Role / Device Role / Timing Role: Back-to-back or single-diode configuration to limit overvoltage during hot-plug and cable discharge events. Use Value: 7.02 V VWM allows full 5 V operation while clamping 8/20 µs surges to <33.1 V, meeting IEC 61000-4-5 Level 2. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0A | Higher VWM (6.89 V), same VBR range, SMB package (larger footprint, 1.6 mm height vs. SMA's 2.29 mm) | Lower power density (600 W vs. 400 W), less suitable for space-constrained automotive PCBs | Select when board layout permits larger pad area and higher surge margin is required |
| TPSMA8.2AHE3 | Identical electrical specs and AEC-Q101 qualification; differs only in tape-and-reel packaging (H = 1800 pcs/reel vs. 5AT = 5000 pcs/reel) | No functional difference; identical placement, soldering, and reliability behavior | Choose TPSMA8.2AHE3 for smaller batch builds or prototyping; TPSMA8.2HE3/5AT for high-volume production |
Compared with SMBJ8.0A, TPSMA8.2HE3/5AT offers superior board-area efficiency and tighter thermal coupling in dense layouts; compared with TPSMA8.2AHE3, it provides optimized logistics for large-scale manufacturing with 5000-unit reels and consistent traceability.
Availability
TPSMA8.2HE3/5AT is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom DC power inputs requiring stable component supply, AEC-Q101 compliance, and long-term lifecycle continuity.
Supply support for TPSMA8.2HE3/5AT 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, high-temperature, and automotive-qualified components.
The TPSMA series was engineered specifically for AEC-Q101-compliant transient suppression in harsh-environment electronics, targeting under-hood automotive, industrial motor drives, and infrastructure equipment where thermal stability and surge immunity are critical.
FAQ
What is the exact breakdown voltage tolerance for TPSMA8.2HE3/5AT?
The TPSMA8.2HE3/5AT has a guaranteed breakdown voltage range of 7.79 V (min) to 8.61 V (max) at 10 mA test current, with 8.20 V nominal. This ±5% tolerance is measured per ANSI/IEEE C62.35 and applies at TA = 25 °C. The device's temperature coefficient of 0.056 %/°C allows accurate VBR prediction across its full -65 °C to +185 °C operating range.
Is TPSMA8.2HE3/5AT qualified to AEC-Q101?
Yes, TPSMA8.2HE3/5AT is fully AEC-Q101 qualified. The HE3 suffix explicitly denotes RoHS-compliant and AEC-Q101-qualified construction, validated per stress tests including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling. Qualification data is documented in Vishay's certification reports for the TPSMA6.8A–TPSMA43A family.
What is the maximum clamping voltage of TPSMA8.2HE3/5AT under surge conditions?
The TPSMA8.2HE3/5AT clamps to a maximum of 33.1 V when subjected to its rated 200 A peak pulse current (IPPM) using the standard 10/1000 µs waveform. This value is measured at TA = 25 °C on a PCB with 0.2" × 0.2" copper pads per terminal and represents worst-case clamping performance used for downstream component voltage margining.
Does TPSMA8.2HE3/5AT support lead-free reflow soldering?
Yes, TPSMA8.2HE3/5AT meets J-STD-020 MSL Level 1 and is rated for lead-free reflow with a maximum peak temperature of 260 °C. Its matte tin-plated terminals comply with JESD 22-B102 and J-STD-002, and the molding compound satisfies UL 94 V-0 flammability requirements - all confirmed in Vishay Document Number 88405.
How does the leakage current of TPSMA8.2HE3/5AT behave at elevated temperatures?
At VWM = 7.02 V, TPSMA8.2HE3/5AT exhibits ≤50 µA leakage at 25 °C and ≤1000 µA at TJ = 150 °C. This controlled increase ensures reliable operation in high-temperature automotive zones without compromising system standby current budgets, as verified in the Electrical Characteristics table of the official datasheet.
TPSMA8.2HE3/5AT 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):
- 6.63V
- Voltage - Breakdown (Min):
- 7.38V
- Voltage - Clamping (Max) @ Ipp:
- 12.5V
- Current - Peak Pulse (10/1000µs):
- 32A
- 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)
TPSMA8.2HE3/5AT FAQ
1.How can I place an order for TPSMA8.2HE3/5AT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMA8.2HE3/5AT 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 TPSMA8.2HE3/5AT reliable?
The price and inventory of TPSMA8.2HE3/5AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMA8.2HE3/5AT is usually 5 days.
3.What payment methods are accepted for TPSMA8.2HE3/5AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMA8.2HE3/5AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMA8.2HE3/5AT?
TPSMA8.2HE3/5AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMA8.2HE3/5AT 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 TPSMA8.2HE3/5AT?
For technical support, including TPSMA8.2HE3/5AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMA8.2HE3/5AT requirements.
6.How does Aetrix verify that TPSMA8.2HE3/5AT is sourced from the original manufacturer or authorized distributors?
All TPSMA8.2HE3/5AT 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 TPSMA8.2HE3/5AT meets industry standards.
7.What is the process for return or replacement of TPSMA8.2HE3/5AT?
All TPSMA8.2HE3/5AT units undergo pre-shipment inspection (PSI). If there is an issue with TPSMA8.2HE3/5AT, 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 TPSMA8.2HE3/5AT part is unused and in its original packaging.
Return procedure for TPSMA8.2HE3/5AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMA8.2HE3/5AT Tags
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