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Vishay General Semiconductor - Diodes Division TPSMA8.2AHE3/5AT
- Part No.:
- TPSMA8.2AHE3/5AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
TPSMA8.2AHE3/5AT.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,184
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Product details
Overview
TPSMA8.2AHE3/5AT from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping inductive switching surges and lightning-induced transients. 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 - deployed on automotive sensor signal lines and industrial I/O protection circuits.
For engineers reviewing the TPSMA8.2AHE3/5AT datasheet, TPSMA8.2AHE3/5AT pinout, TPSMA8.2AHE3/5AT application, or TPSMA8.2AHE3/5AT equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, TJ = 185 °C capability, low clamping ratio (VC/VBR ≈ 4.04), and MSL Level 1 moisture sensitivity rating for lead-free reflow compatibility.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology with optimized junction passivation for stable clamping under high-temperature stress. Its unidirectional structure provides forward conduction only during overvoltage events, enabling precise protection of DC-biased signal paths without interfering with normal operation.
The device delivers 33.1 V clamping at 200 A (10/1000 µs), with 0.056 %/°C temperature coefficient of VBR, ensuring predictable voltage threshold shift across -65 °C to +185 °C operating range. It meets JESD201 Class 2 whisker resistance and J-STD-020 MSL Level 1 (260 °C peak).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 7.79 / 8.20 / 8.61 V - defines precise reverse breakdown onset for reliable surge detection |
| VWM | 7.02 V - maximum continuous reverse working voltage before leakage exceeds 50 µA |
| VC @ IPPM | 33.1 V at 200 A - clamping voltage limiting downstream IC stress during 10/1000 µs surge |
| PPPM | 400 W - peak pulse power handling capacity per standard 10/1000 µs waveform |
| TJ max. | +185 °C - enables use in under-hood automotive and high-ambient industrial environments |
| IR @ VWM | 50 µA at 25 °C - low leakage preserves signal integrity on high-impedance sensor inputs |
| αT | 0.056 %/°C - quantifies VBR drift with temperature for thermal design margining |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, cathode indicated by color band. Molded compound meets UL 94 V-0; matte tin-plated leads solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Surge return path | Connected to ground or low-impedance reference plane to sink transient energy |
| Cathode | Reverse-biased clamping node | Connected to protected line; conducts when VLINE exceeds VBR, clamping to ≤33.1 V |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| MSL Level 1 | Zero floor life limitation - supports unlimited storage and single-reflow at 260 °C peak |
| 185 °C junction rating | Enables placement near heat sources (e.g., power MOSFETs, motor drivers) without derating |
| Low clamping ratio (VC/VBR = 4.04) | Minimizes overvoltage exposure to downstream logic or analog circuitry |
| Passivated anisotropic rectifier | Reduces parameter drift and improves long-term stability under repetitive surge stress |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between signal line and chassis ground to limit transient voltage to safe levels. Use Value: Withstands 400 W surges while maintaining 33.1 V clamping, preventing latch-up or damage to 5 V or 3.3 V interface ICs. |
Use Scenario: Shielding digital input modules in programmable logic controllers from inductive kickback from solenoids and relays. IC Role / Device Role / Timing Role: Fast-response surge suppressor installed at terminal block entry point to shunt transients before reaching isolation barrier. Use Value: 200 A peak surge current capability and 185 °C rating ensure robustness in hot control cabinet environments with frequent switching cycles. |
| Consumer Power Adapter ESD Protection | Telecom Line Interface Protection |
Use Scenario: Safeguarding USB-C PD controller and voltage monitor ICs against ESD and fast transients on AC/DC adapter output rails. IC Role / Device Role / Timing Role: Standoff-rated TVS (VWM = 7.02 V) placed after DC-DC converter to protect downstream 5 V logic. Use Value: 50 µA leakage at VWM avoids loading sensitive feedback networks; RoHS-compliant HE3 suffix ensures compliance for global markets. |
Use Scenario: Front-end protection for Ethernet PHYs and DSL line drivers exposed to lightning-induced surges on twisted-pair interfaces. IC Role / Device Role / Timing Role: Primary clamping element in multi-stage protection scheme, absorbing bulk surge energy before secondary TVS or GDT. Use Value: 400 W peak power rating and 33.1 V clamping enable coordination with higher-voltage secondary protectors without over-clamping. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0A | Higher VWM (6.89 V), lower VC (12.8 V @ 31.2 A), 600 W PPPM, SMB package | Lower clamping voltage but reduced surge current (31.2 A vs. 200 A); suited for lower-energy transients | Select when tighter clamping and smaller footprint are prioritized over high-current surge handling |
| 1.5SMC8.2A | Same VBR range, larger SMC package, 1500 W PPPM, higher VC (13.4 V @ 112 A) | Higher power handling but larger board area; not AEC-Q101 qualified | Choose for non-automotive industrial applications requiring higher single-pulse energy absorption |
Compared with SMBJ8.0A and 1.5SMC8.2A, the TPSMA8.2AHE3/5AT uniquely balances AEC-Q101 qualification, 200 A surge current capability, and SMA footprint - making it optimal for space-constrained automotive and industrial designs where reliability and thermal robustness are critical.
Availability
TPSMA8.2AHE3/5AT is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line interface protection requiring stable component supply, AEC-Q101 compliance, and high-temperature operational assurance.
Supply support for TPSMA8.2AHE3/5AT 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 reliability and high-temperature performance.
The TPSMA series is engineered for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where AEC-Q101 qualification, 185 °C operation, and stable clamping are mandatory.
FAQ
What is the exact breakdown voltage tolerance for TPSMA8.2AHE3/5AT?
The TPSMA8.2AHE3/5AT has a specified breakdown voltage (VBR) range of 7.79 V (min) to 8.61 V (max) at 10 mA test current, with 8.20 V nominal. This ±5% tolerance ensures consistent clamping behavior across production lots and supports reliable design margining for protected circuits.
Is TPSMA8.2AHE3/5AT AEC-Q101 qualified?
Yes, TPSMA8.2AHE3/5AT is AEC-Q101 qualified. The HE3 suffix explicitly denotes RoHS-compliant and AEC-Q101 qualified construction, validated per stress tests including HTGB, HTRB, temperature cycling, and ESD - confirming suitability for automotive powertrain and body electronics.
What is the clamping voltage of TPSMA8.2AHE3/5AT at its rated peak pulse current?
The TPSMA8.2AHE3/5AT clamps to a maximum of 33.1 V at 200 A peak pulse current (10/1000 µs waveform). This value is measured under standardized conditions with 0.2" × 0.2" copper pads and defines the upper voltage limit imposed on protected circuitry during worst-case surge events.
Does TPSMA8.2AHE3/5AT support lead-free reflow soldering?
Yes, TPSMA8.2AHE3/5AT meets J-STD-020 MSL Level 1 with a maximum peak reflow temperature of 260 °C. Its matte tin-plated leads are solderable per J-STD-002 and JESD 22-B102, and the HE3 suffix confirms full RoHS compliance and lead-free process compatibility.
How does the temperature coefficient affect TPSMA8.2AHE3/5AT's breakdown voltage?
The TPSMA8.2AHE3/5AT has a VBR temperature coefficient (αT) of +0.056 %/°C. At +125 °C junction temperature, VBR increases by approximately 5.6%, shifting from 8.20 V to ~8.66 V - a predictable drift that must be accounted for in high-temperature system-level surge margin analysis.
TPSMA8.2AHE3/5AT 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):
- 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)
TPSMA8.2AHE3/5AT FAQ
1.How can I place an order for TPSMA8.2AHE3/5AT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMA8.2AHE3/5AT 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 TPSMA8.2AHE3/5AT reliable?
The price and inventory of TPSMA8.2AHE3/5AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMA8.2AHE3/5AT is usually 5 days.
3.What payment methods are accepted for TPSMA8.2AHE3/5AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMA8.2AHE3/5AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMA8.2AHE3/5AT?
TPSMA8.2AHE3/5AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMA8.2AHE3/5AT 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 TPSMA8.2AHE3/5AT?
For technical support, including TPSMA8.2AHE3/5AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMA8.2AHE3/5AT requirements.
6.How does Aetrix verify that TPSMA8.2AHE3/5AT is sourced from the original manufacturer or authorized distributors?
All TPSMA8.2AHE3/5AT 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 TPSMA8.2AHE3/5AT meets industry standards.
7.What is the process for return or replacement of TPSMA8.2AHE3/5AT?
All TPSMA8.2AHE3/5AT units undergo pre-shipment inspection (PSI). If there is an issue with TPSMA8.2AHE3/5AT, 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 TPSMA8.2AHE3/5AT part is unused and in its original packaging.
Return procedure for TPSMA8.2AHE3/5AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMA8.2AHE3/5AT Tags
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