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Vishay General Semiconductor - Diodes Division TPSMA8.2AHE3/61T
- Part No.:
- TPSMA8.2AHE3/61T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
TPSMA8.2AHE3/61T.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,526
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Product details
Overview
TPSMA8.2AHE3/61T from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) diode designed for clamping inductive switching transients and lightning-induced surges. It features a 8.2 V breakdown voltage (VBR), 7.02 V stand-off voltage (VWM), 33.1 V 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. It protects MOSFETs and ICs in automotive power supply rails.
For engineers reviewing the TPSMA8.2AHE3/61T datasheet, TPSMA8.2AHE3/61T pinout, TPSMA8.2AHE3/61T application, or TPSMA8.2AHE3/61T equivalent, key selection criteria include unidirectional polarity, SMA (DO-214AC) package compatibility, AEC-Q101 qualification status, TJ = 185 °C capability, and 50 µA max reverse leakage at VWM.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology optimized for high-temperature stability and low incremental surge resistance. Its clamping behavior is defined by a 10/1000 µs waveform with 0.01 % duty cycle, and it meets MSL level 1 per J-STD-020 with 260 °C reflow peak.
The device is rated for 40 A non-repetitive forward surge current (8.3 ms half-sine), exhibits 3.5 V max forward voltage at 25 A, and delivers stable breakdown voltage with ±0.056 %/°C temperature coefficient - enabling predictable overvoltage protection across wide thermal ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 7.79 / 8.20 / 8.61 V - ensures reliable triggering above system operating voltage while avoiding false trips |
| VWM | 7.02 V - maximum continuous reverse voltage before leakage exceeds 50 µA at 25 °C |
| VC @ IPPM | 33.1 V at 200 A - limits transient voltage seen by protected downstream components |
| PPPM | 400 W (10/1000 µs) - handles high-energy transients without failure under standard test conditions |
| TJ max. | +185 °C - supports operation in under-hood automotive and industrial environments |
| Polarity | Unidirectional - provides reverse-biased clamping only; requires correct orientation in circuit |
| Leakage @ VWM | 50 µA at 25 °C - low standby power loss in always-on systems |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, matte tin-plated leads, cathode indicated by color band. Complies with UL 94 V-0 flammability rating and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient clamp output node | Connected to protected line; conducts during overvoltage to shunt energy to ground |
| Anode | Reference/return path | Typically tied to system ground or low-impedance return plane for effective clamping |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier process improves long-term reliability under thermal cycling and humidity |
| AEC-Q101 qualification | Validated for automotive-grade stress testing including HTGB, H3TRB, and temperature cycling |
| MSL Level 1 | Zero floor life limitation; compatible with standard SMT reflow profiles up to 260 °C peak |
| Low clamping ratio (VC/VBR) | ~4.04 - enables tighter voltage margin between operating rail and clamping threshold |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Suppressing load-dump and jump-start transients on 12 V battery-fed ECUs and body control modules. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed in parallel with power input to clamp voltage spikes before they reach DC/DC converters and microcontrollers. Use Value: Withstands 400 W pulses and operates to +185 °C, meeting ISO 7637-2 and AEC-Q100 stress requirements for under-hood electronics. | Use Scenario: Protecting analog outputs of pressure/temperature sensors connected to PLC inputs against ESD and field wiring surges. IC Role / Device Role / Timing Role: Fast-response clamping element on 4–20 mA or 0–10 V signal lines to prevent damage to precision ADC front-ends. Use Value: 33.1 V clamping voltage and 50 µA leakage ensure minimal impact on signal integrity while providing robust 8 kV ESD immunity (IEC 61000-4-2). |
| Consumer Power Adapter Input Stage | Telecom DC Feeder Protection |
Use Scenario: Safeguarding primary-side controllers and bridge rectifiers in AC/DC adapters against mains-borne surges and capacitor discharge events. IC Role / Device Role / Timing Role: Standoff-rated TVS placed across bulk capacitor input to limit transient overvoltage during brownouts or lightning coupling. Use Value: 7.02 V VWM allows use with 5 V or 9 V adapter outputs; 400 W rating covers common IEC 61000-4-5 Level 3 surges. | Use Scenario: Protecting -48 V DC telecom power feeds from induced surges due to nearby lightning strikes or cable faults. IC Role / Device Role / Timing Role: Unidirectional TVS installed between feed line and chassis ground to clamp negative-going transients on centralized power distribution. Use Value: 185 °C rating supports operation in sealed outdoor cabinets; 200 A IPPM capacity handles telecom-specific surge waveforms per GR-1089-CORE. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ8.0A | VBR = 8.5–9.4 V (min/typ/max), VC = 13.6 V @ 31.2 A, PPPM = 400 W - lower clamping voltage but lower surge current rating | More suitable for low-current logic-level protection; less robust for high-energy automotive transients | Select when clamping voltage margin is critical and peak surge current remains below 31 A |
| 1.5SMC8.2A | VBR = 7.79–8.61 V, VC = 13.4 V @ 112 A, PPPM = 1500 W - same VBR range but higher power and larger SMC package | Used where PCB space permits larger footprint and higher surge immunity is required (e.g., front-end AC input) | Choose for enhanced ruggedness in high-exposure locations; requires layout change due to SMC (DO-214AB) footprint |
Compared with SMAJ8.0A and 1.5SMC8.2A, the TPSMA8.2AHE3/61T offers AEC-Q101 qualification and +185 °C operation in the compact SMA package - making it optimal for space-constrained, high-reliability automotive and industrial designs where both thermal resilience and footprint efficiency are essential.
Availability
TPSMA8.2AHE3/61T is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface circuits, and telecom DC feeder systems requiring stable component supply, AEC-Q101 compliance, and high-temperature operational assurance.
Supply support for TPSMA8.2AHE3/61T 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, thermal performance, and automotive qualification.
The TPSMA series belongs to Vishay's PAR® family of transient voltage suppressors, engineered specifically for high-temperature, high-reliability protection in automotive, industrial, and telecom infrastructure applications.
FAQ
What is the breakdown voltage tolerance of the TPSMA8.2AHE3/61T?
The TPSMA8.2AHE3/61T has a specified breakdown voltage range of 7.79 V (min) to 8.61 V (max) at 10 mA test current, with a nominal value of 8.20 V. This ±5% tolerance ensures consistent clamping behavior across production lots while maintaining compatibility with 7.02 V stand-off voltage requirements in 8 V nominal systems. The TPSMA8.2AHE3/61T is tested per ANSI/IEEE C62.35 standards.
Is the TPSMA8.2AHE3/61T qualified for automotive applications?
Yes, the TPSMA8.2AHE3/61T carries the HE3 suffix, indicating RoHS-compliance and AEC-Q101 qualification. It has passed stress tests including high-temperature reverse bias (HTGB), unbiased highly accelerated stress (UHAST), and temperature cycling - confirming suitability for automotive powertrain, body electronics, and ADAS subsystems. The TPSMA8.2AHE3/61T operates reliably up to +185 °C junction temperature.
What is the clamping voltage of the TPSMA8.2AHE3/61T at its rated peak pulse current?
The TPSMA8.2AHE3/61T clamps to a maximum of 33.1 V at 200 A peak pulse current (10/1000 µs waveform). This value defines the upper voltage limit imposed on protected circuitry during surge events. The clamping voltage is measured under standardized conditions with 0.2" × 0.2" copper pads, and the TPSMA8.2AHE3/61T maintains this performance across its full operating temperature range.
Does the TPSMA8.2AHE3/61T have bidirectional polarity?
No, the TPSMA8.2AHE3/61T is unidirectional only, as explicitly stated in the Vishay datasheet. It functions as a reverse-biased avalanche diode and must be oriented with the cathode toward the protected line and anode to ground. For bidirectional protection, a separate part number (e.g., TPSMA8.2CA) would be required - the TPSMA8.2AHE3/61T does not support symmetrical clamping.
What is the maximum reverse leakage current of the TPSMA8.2AHE3/61T at its stand-off voltage?
At 25 °C and 7.02 V stand-off voltage (VWM), the TPSMA8.2AHE3/61T exhibits a maximum reverse leakage current of 50 µA. At elevated temperatures (e.g., 150 °C), leakage increases to 1000 µA - a design consideration for high-temperature applications where standby power budget is constrained. This parameter is verified per the electrical characteristics table in Document Number 88405.
TPSMA8.2AHE3/61T 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):
- 7.02V
- Voltage - Breakdown (Min):
- 7.79V
- Voltage - Clamping (Max) @ Ipp:
- 12.1V
- Current - Peak Pulse (10/1000µs):
- 33.1A
- 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)
TPSMA8.2AHE3/61T FAQ
1.How can I place an order for TPSMA8.2AHE3/61T through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMA8.2AHE3/61T 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 TPSMA8.2AHE3/61T reliable?
The price and inventory of TPSMA8.2AHE3/61T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMA8.2AHE3/61T is usually 5 days.
3.What payment methods are accepted for TPSMA8.2AHE3/61T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMA8.2AHE3/61T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMA8.2AHE3/61T?
TPSMA8.2AHE3/61T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMA8.2AHE3/61T 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 TPSMA8.2AHE3/61T?
For technical support, including TPSMA8.2AHE3/61T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMA8.2AHE3/61T requirements.
6.How does Aetrix verify that TPSMA8.2AHE3/61T is sourced from the original manufacturer or authorized distributors?
All TPSMA8.2AHE3/61T 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 TPSMA8.2AHE3/61T meets industry standards.
7.What is the process for return or replacement of TPSMA8.2AHE3/61T?
All TPSMA8.2AHE3/61T units undergo pre-shipment inspection (PSI). If there is an issue with TPSMA8.2AHE3/61T, 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 TPSMA8.2AHE3/61T part is unused and in its original packaging.
Return procedure for TPSMA8.2AHE3/61T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMA8.2AHE3/61T Tags
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