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Vishay General Semiconductor - Diodes Division TPC8.2AHM3_A/I
- Part No.:
- TPC8.2AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC8.2AHM3_A/I.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:2,939
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Product details
Overview
TPC8.2AHM3_A/I from Vishay General Semiconductor is a unidirectional 1500 W transient voltage suppressor (TVS) in TO-277A (SMPC) package, designed for robust overvoltage protection of sensitive electronics. It features a breakdown voltage of 7.79–8.61 V at 10 mA, clamping voltage of 12.1 V at 124 A peak pulse current, and operates up to +185 °C junction temperature. It is AEC-Q101 qualified and used to protect MOSFETs, ICs, and sensor signal lines in automotive powertrain control units.
For engineers reviewing the TPC8.2AHM3_A/I datasheet, TPC8.2AHM3_A/I pinout, TPC8.2AHM3_A/I application, or TPC8.2AHM3_A/I equivalent, key selection criteria include unidirectional clamping performance, 1500 W peak pulse power rating, TO-277A surface-mount compatibility, and automotive-grade reliability per AEC-Q101.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology with optimized junction passivation for stable breakdown behavior under repetitive surge stress. Its low incremental surge resistance and fast response time ensure effective suppression of transients induced by inductive load switching in automotive ECUs.
The device is rated for 10/1000 μs waveform testing, delivers 124 A peak pulse current at 12.1 V clamping, and maintains full functionality across -65 °C to +185 °C operating junction temperature range - meeting stringent requirements for under-hood automotive applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 μs) | 1500 W - sustains high-energy transients without failure in automotive load-dump scenarios |
| Breakdown Voltage VBR | 7.79–8.61 V at 10 mA - defines precise conduction threshold for reliable overvoltage triggering |
| Clamping Voltage VC | 12.1 V at 124 A IPPM - limits downstream voltage stress to safe levels during surge events |
| Stand-off Voltage VWM | 7.02 V - maximum continuous reverse voltage before leakage exceeds 200 μA |
| Junction Temperature Range | -65 °C to +185 °C - enables deployment in high-temperature engine compartments |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling and HTRB |
| Package | TO-277A (SMPC) - ultra-low-profile (1.1 mm typical height), halogen-free, RoHS-compliant |
Pinout & Package
TO-277A (SMPC) is a 3-terminal surface-mount package with cathode-anode-cathode configuration. The device uses a dual-cathode layout for enhanced thermal dissipation and surge current handling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 (Cathode) | Anode-side cathode connection | Provides low-inductance path for surge current return; shares thermal mass with Terminal 2 |
| Terminal 2 (Anode) | Main anode node | Connected to protected line; carries full surge current during clamping |
| Terminal 3 (Cathode) | Second cathode connection | Completes symmetrical current path; improves current sharing and thermal spreading |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier process ensures stable VBR over lifetime and temperature |
| Low profile height | 1.1 mm typical - enables placement in space-constrained automotive modules and PCBs with tight Z-height budgets |
| MSL Level 1 | Unlimited floor life at ≤30 °C/60 % RH - eliminates bake requirements prior to reflow |
| Automotive qualification | AEC-Q101 certified - validated for mechanical shock, vibration, and high-temperature reverse bias life testing |
| Halogen-free & RoHS | HM3 suffix denotes compliance with JEDEC JESD201 Class 2 whisker resistance and environmental directives |
Applications
| Automotive Powertrain Control | Industrial Motor Drive Protection |
|---|---|
Use Scenario: Protecting gate drivers and microcontrollers in 12 V/24 V engine control units exposed to ISO 7637-2 pulse 1, 2a, and 5a transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed across power rails and signal inputs to limit voltage excursions below IC absolute maximum ratings. Use Value: Enables reliable operation at TJ = 185 °C while maintaining <12.1 V clamping at 124 A, preventing latch-up or permanent damage during cold-crank or load-dump events. |
Use Scenario: Safeguarding IGBT gate terminals and feedback sensors in variable-frequency drives subjected to inductive switching spikes. IC Role / Device Role / Timing Role: Fast-response transient suppressor installed at motor controller input stage to clamp flyback energy from relay coils and contactors. Use Value: Low incremental surge resistance minimizes voltage overshoot during 10/1000 μs surges, preserving gate oxide integrity and reducing system-level EMI filtering burden. |
| Automotive Body Electronics | Telecom Power Interface |
Use Scenario: Shielding LIN bus transceivers and LED driver ICs in door modules and lighting control units against ESD and cable discharge events. IC Role / Device Role / Timing Role: Standoff-rated TVS placed on bidirectional data lines and DC supply inputs to absorb ±15 kV contact ESD per IEC 61000-4-2. Use Value: 7.02 V stand-off voltage allows normal LIN signaling (up to 12 V) while triggering clamping before transceiver damage thresholds are exceeded. |
Use Scenario: Protecting PoE-powered Ethernet switches and base station power supplies from lightning-induced surges on DC input lines. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 48 V DC input rail upstream of DC/DC converters and hot-swap controllers. Use Value: 1500 W peak power rating handles multi-kA surge currents per ITU-T K.20/K.21 standards without degradation, supporting long-term field reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ8.0A (ON Semiconductor) | Lower PPPM (400 W), SMA package (higher thermal resistance), VBR = 8.89–9.83 V | Not AEC-Q101 qualified; limited to industrial/commercial ambient conditions | Choose when cost sensitivity outweighs automotive qualification and surge energy requirements |
| TPC8.2AHM3_A/H (Vishay) | Identical electrical specs; differs only in tape-and-reel packaging (7″ vs. 13″ reel, 1500 vs. 6500 pcs) | No functional difference; same board-level performance and reliability | Select based on production volume and SMT line feeder compatibility |
Compared with SMAJ8.0A and TPC8.2AHM3_A/H, the TPC8.2AHM3_A/I offers superior surge handling (1500 W vs. 400 W) and automotive qualification, while differing from its sibling only in packaging format - making it optimal for high-volume automated assembly requiring 13″ reels.
Availability
TPC8.2AHM3_A/I is available at Aetrix Electronics and suitable for automotive powertrain control, industrial motor drive protection, and telecom power interface applications requiring stable component supply, AEC-Q101 compliance, and high-energy transient suppression.
Supply support for TPC8.2AHM3_A/I 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 application-specific performance.
The TPC series was developed specifically for high-reliability automotive and industrial transient suppression, targeting under-hood environments where thermal stability, surge robustness, and AEC-Q101 compliance are mandatory design requirements.
FAQ
What is the clamping voltage of the TPC8.2AHM3_A/I at its rated peak pulse current?
The TPC8.2AHM3_A/I has a maximum clamping voltage (VC) of 12.1 V when subjected to its rated peak pulse current of 124 A under a 10/1000 μs waveform. This value is measured per standard test conditions defined in ANSI/IEEE C62.35 and confirmed in the Vishay datasheet revision 04-Nov-16. The low clamping level ensures protected downstream components remain within safe operating voltage limits during surge events.
Is the TPC8.2AHM3_A/I suitable for automotive applications?
Yes, the TPC8.2AHM3_A/I is AEC-Q101 qualified and rated for operation up to +185 °C junction temperature, making it suitable for under-hood automotive applications such as engine control units, body control modules, and ADAS power supplies. Its TO-277A package, halogen-free construction, and MSL Level 1 rating further support automotive manufacturing and reliability requirements.
How does the TO-277A package of the TPC8.2AHM3_A/I improve thermal performance compared to SMA or SMC packages?
The TO-277A (SMPC) package of the TPC8.2AHM3_A/I features a dual-cathode layout and copper strap construction that reduces thermal resistance by ~30 % versus standard SMA packages. Its 1.1 mm profile and optimized pad layout enable efficient heat transfer to the PCB, supporting higher sustained surge energy handling and improved reliability in thermally demanding environments.
What is the meaning of the 'HM3_A/I' suffix in TPC8.2AHM3_A/I?
The 'HM3' suffix indicates halogen-free, RoHS-compliant construction meeting JESD201 Class 2 whisker resistance; 'A' denotes the revision code; 'I' specifies the packaging format - 13″ diameter plastic tape and reel containing 6500 units. This distinguishes it from the 'H' variant (7″ reel, 1500 units), with identical electrical and thermal characteristics.
Does the TPC8.2AHM3_A/I support bidirectional transient suppression?
No, the TPC8.2AHM3_A/I is a unidirectional TVS diode, designed only for suppression of positive-going transients on DC-biased lines. Its electrical characteristics - including breakdown voltage, clamping behavior, and leakage current - are specified exclusively for reverse-biased operation. For bidirectional protection, a separate symmetric device such as the TPSMB8.2A would be required.
TPC8.2AHM3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- TO-277, 3-PowerDFN
- Series:
- PAR®, eSMP®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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):
- 124A
- 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:
- TO-277A (SMPC)
TPC8.2AHM3_A/I FAQ
1.How can I place an order for TPC8.2AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC8.2AHM3_A/I 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 TPC8.2AHM3_A/I reliable?
The price and inventory of TPC8.2AHM3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPC8.2AHM3_A/I is usually 5 days.
3.What payment methods are accepted for TPC8.2AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC8.2AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC8.2AHM3_A/I?
TPC8.2AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC8.2AHM3_A/I 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 TPC8.2AHM3_A/I?
For technical support, including TPC8.2AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC8.2AHM3_A/I requirements.
6.How does Aetrix verify that TPC8.2AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All TPC8.2AHM3_A/I 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 TPC8.2AHM3_A/I meets industry standards.
7.What is the process for return or replacement of TPC8.2AHM3_A/I?
All TPC8.2AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPC8.2AHM3_A/I, 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 TPC8.2AHM3_A/I part is unused and in its original packaging.
Return procedure for TPC8.2AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC8.2AHM3_A/I Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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