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Vishay General Semiconductor - Diodes Division TPC8.2AHM3_A/H
- Part No.:
- TPC8.2AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC8.2AHM3_A/H.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:2,048
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Product details
Overview
TPC8.2AHM3_A/H from Vishay General Semiconductor is a unidirectional 1500 W transient voltage suppressor (TVS) in TO-277A (SMPC) package, designed for clamping inductive switching transients and lightning-induced surges on power rails and signal lines. It features a 7.79–8.61 V breakdown voltage (VBR), 7.02 V stand-off voltage (VWM), 12.1 V clamping voltage at 124 A peak pulse current, and AEC-Q101 qualification for automotive electronics protection.
For engineers reviewing the TPC8.2AHM3_A/H datasheet, TPC8.2AHM3_A/H pinout, TPC8.2AHM3_A/H application, or TPC8.2AHM3_A/H equivalent, key selection criteria include unidirectional surge clamping capability, 185 °C junction temperature rating, low-profile SMPC packaging for space-constrained PCBs, and compliance with JESD201 Class 2 whisker resistance and MSL Level 1.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to achieve low incremental surge resistance and fast response time (<1 ns), enabling effective suppression of ESD and inductive kickback events before sensitive downstream components are damaged. Its unidirectional architecture supports DC-biased rail protection without reverse leakage concerns under normal operation.
The device operates across -65 °C to +185 °C junction temperature range and maintains stable clamping performance up to 150 °C ambient, validated per AEC-Q101 stress tests including high-temperature operating life and temperature cycling. Its TO-277A package provides robust thermal dissipation while meeting UL 94 V-0 flammability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.79 V / 8.61 V - ensures reliable triggering above 7.02 V nominal rail while avoiding false trips during ripple or tolerance drift |
| VWM | 7.02 V - maximum continuous reverse voltage the device blocks without significant leakage (≤200 μA @ 25 °C) |
| VC @ IPPM | 12.1 V - clamping voltage at 124 A peak pulse current, limiting downstream voltage stress during 10/1000 μs transients |
| PPPM | 1500 W - peak pulse power handling capability for short-duration surges per IEC 61000-4-5 Level 4 compliance |
| TJ max | +185 °C - enables use in under-hood automotive modules and industrial power supplies without derating penalties |
| Package | TO-277A (SMPC) - 3-pin surface-mount package with 1.1 mm typical height, optimized for automated placement and thermal relief |
| AEC-Q101 | Qualified - certified for automotive-grade reliability including HTOL, TC, and HAST testing per JEDEC standards |
Pinout & Package
TPC8.2AHM3_A/H is housed in a TO-277A (SMPC) package with three terminals: two cathodes (pins 1 and 2) connected internally and one anode (pin 3). The package has a low-profile, flat lead configuration suitable for high-density PCB layouts and reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Cathode) | Primary cathode connection | Internally tied to Pin 2; used for PCB layout symmetry and thermal spreading |
| Pin 2 (Cathode) | Secondary cathode connection | Electrically identical to Pin 1; enhances current sharing and thermal conduction to copper pour |
| Pin 3 (Anode) | Anode input terminal | Connected to protected line (e.g., 5 V rail or sensor supply); reverse-biased during normal operation |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier process reduces leakage drift over temperature and lifetime, maintaining ≤200 μA at VWM |
| Low profile height | 1.1 mm typical - enables use in ultra-thin consumer electronics and stacked PCB assemblies where Z-height is constrained |
| MSL Level 1 | No floor life limitation - can be stored indefinitely at ≤30 °C/60 % RH without baking prior to reflow |
| Matte tin plating | RoHS-compliant, solderable per J-STD-002 and JESD22-B102 - ensures reliable wetting and intermetallic formation during lead-free reflow |
| Whisker resistance | JESD201 Class 2 qualified - eliminates risk of conductive filament growth in high-reliability automotive and industrial applications |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 5 V or 12 V power distribution networks in engine control units (ECUs) and body control modules (BCMs) against load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between power input and local regulator input to limit transient overvoltage. Use Value: Clamps 124 A surges to ≤12.1 V, preventing damage to downstream LDOs and microcontrollers rated for 16 V absolute maximum. |
Use Scenario: Safeguarding analog front-end inputs of pressure, temperature, and position sensors exposed to ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS placed directly at connector entry point to shunt fast transients before signal conditioning circuitry. Use Value: Sub-1 ns response time and 12.1 V clamping ensure sensor output remains within ADC input range during ±8 kV contact ESD per IEC 61000-4-2. |
| Telecom Line Card Surge Suppression | Consumer USB Power Delivery Protection |
|
Use Scenario: Secondary-level surge protection on 48 V DC feeding telecom base station backplanes and remote radio units. IC Role / Device Role / Timing Role: Standoff-rated TVS deployed after primary GDT or MOV to refine clamping level and reduce let-through energy. Use Value: 7.02 V VWM allows integration into 5 V auxiliary logic rails; 1500 W PPPM handles repeated lightning-induced surges per ITU-T K.20. |
Use Scenario: Overvoltage protection on VBUS lines of USB-C ports in laptops and docking stations subject to hot-plug and adapter fault conditions. IC Role / Device Role / Timing Role: Unidirectional TVS placed between USB-C receptacle and power switch to prevent 20 V+ faults from damaging PD controllers. Use Value: 12.1 V clamping at 124 A ensures USB PD 3.0 compliant devices remain within safe operating area during 10/1000 μs surges. |
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 | Lower PPPM (400 W), higher VC (12.5 V @ 32.4 A), SMA package (higher thermal resistance) | Not AEC-Q101 qualified; limited to commercial-grade consumer and computing applications | Select when cost sensitivity outweighs automotive reliability or surge energy requirements |
| TPC8.2AHM3_A/I | Identical electrical specs; differs only in tape-and-reel packaging (6500 pcs/reel vs. 1500 pcs/reel, 13″ vs. 7″ diameter) | No functional difference; same PCB footprint, thermal behavior, and reliability performance | Select for high-volume SMT production requiring larger reels and reduced changeover frequency |
Compared with SMAJ8.0A and TPC8.2AHM3_A/I, the TPC8.2AHM3_A/H delivers superior surge robustness (1500 W vs. 400 W), automotive qualification, and lower thermal impedance via TO-277A packaging-making it optimal for mission-critical power rail protection where failure modes must be minimized.
Availability
TPC8.2AHM3_A/H is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom line cards, and USB-C power delivery systems requiring stable component supply, long-term lifecycle support, and AEC-Q101 traceability.
Supply support for TPC8.2AHM3_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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The TPC series is part of Vishay's PAR® family of high-power TVS diodes engineered specifically for automotive and industrial environments demanding AEC-Q101 compliance, high-temperature operation, and precise clamping performance under repetitive surge stress.
FAQ
What is the maximum clamping voltage of the TPC8.2AHM3_A/H under standard test conditions?
The TPC8.2AHM3_A/H exhibits a maximum clamping voltage (VC) of 12.1 V when subjected to its rated peak pulse current (IPPM) of 124 A using a 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in the Vishay datasheet revision 04-Nov-16, ensuring predictable overvoltage limiting for downstream ICs in automotive and industrial designs.
Is the TPC8.2AHM3_A/H suitable for bidirectional transient suppression?
No, the TPC8.2AHM3_A/H is strictly unidirectional and must be installed with correct polarity-cathode toward the protected supply rail. It does not provide reverse surge protection. For bidirectional applications, Vishay offers separate dual-diode configurations such as the TPSMB8.0CA; the TPC8.2AHM3_A/H is not interchangeable with those devices.
Does the TPC8.2AHM3_A/H require derating at elevated ambient temperatures?
Yes, the TPC8.2AHM3_A/H must be derated above 25 °C ambient per Figure 2 in the datasheet. At 100 °C ambient, its peak pulse power drops to approximately 70 % of the 1500 W rating at 25 °C. Designers should consult the derating curve to ensure adequate margin for worst-case thermal conditions in enclosed enclosures or under-hood locations.
What is the meaning of the "HM3_A/H" suffix in TPC8.2AHM3_A/H?
The "HM3" denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification; "A" is the revision code; "H" specifies the preferred package code for 7″ diameter plastic tape-and-reel with 1500 units per reel. This full suffix identifies both material compliance and logistics configuration-distinct from the "I" variant (13″ reel, 6500 units).
Can the TPC8.2AHM3_A/H replace older TPC8.2A variants without layout changes?
Yes, the TPC8.2AHM3_A/H shares identical TO-277A (SMPC) mechanical dimensions, pinout, and thermal pad layout with legacy TPC8.2A versions. No PCB redesign is needed; however, users should verify that the HM3 suffix's halogen-free and AEC-Q101 qualifications meet their program's compliance requirements before migration.
TPC8.2AHM3_A/H 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/H FAQ
1.How can I place an order for TPC8.2AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC8.2AHM3_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 TPC8.2AHM3_A/H reliable?
The price and inventory of TPC8.2AHM3_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 TPC8.2AHM3_A/H is usually 5 days.
3.What payment methods are accepted for TPC8.2AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC8.2AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC8.2AHM3_A/H?
TPC8.2AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC8.2AHM3_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 TPC8.2AHM3_A/H?
For technical support, including TPC8.2AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC8.2AHM3_A/H requirements.
6.How does Aetrix verify that TPC8.2AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All TPC8.2AHM3_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 TPC8.2AHM3_A/H meets industry standards.
7.What is the process for return or replacement of TPC8.2AHM3_A/H?
All TPC8.2AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPC8.2AHM3_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 TPC8.2AHM3_A/H part is unused and in its original packaging.
Return procedure for TPC8.2AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC8.2AHM3_A/H Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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