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Vishay General Semiconductor - Diodes Division TPC8.2AHM3/87A
- Part No.:
- TPC8.2AHM3/87A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC8.2AHM3/87A.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:9,804
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Product details
Overview
TPC8.2AHM3/87A from Vishay General Semiconductor is a unidirectional 1500 W transient voltage suppressor (TVS) in SMPC (TO-277A) package, designed for high-reliability automotive and industrial surge protection. It features a breakdown voltage of 7.79–8.61 V at 10 mA, clamping voltage of 12.1 V at 200 A peak pulse current, and operates up to +185 °C junction temperature.
For engineers reviewing the TPC8.2AHM3/87A datasheet, TPC8.2AHM3/87A pinout, TPC8.2AHM3/87A application, or TPC8.2AHM3/87A equivalent, key selection criteria include its 7.02 V stand-off voltage, 200 μA max reverse leakage at VWM, AEC-Q101 qualification, MSL Level 1 rating, and suitability for automated SMT placement in space-constrained designs.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology with optimized junction passivation for stable clamping under repetitive surge stress. Its unidirectional architecture enables precise overvoltage protection on power rails and signal lines without forward conduction interference.
The device delivers low incremental surge resistance and fast response time to suppress transients induced by inductive load switching or ESD events. Its 1.1 mm typical height and TO-277A mechanical outline support high-density PCB layouts while maintaining thermal robustness up to TJ = 185 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 μs) | 1500 W - sustains high-energy surges without failure in automotive load-dump or ISO 7637-2 scenarios |
| Breakdown Voltage VBR | 7.79–8.61 V at 10 mA - defines precise clamping onset threshold for 8.2 V nominal rail protection |
| Stand-off Voltage VWM | 7.02 V - ensures no conduction during normal 5 V–7 V system operation, minimizing standby leakage |
| Clamping Voltage VC | 12.1 V at IPPM = 200 A - limits downstream IC voltage stress during worst-case surge events |
| Operating Temperature | -65 °C to +185 °C - supports under-hood automotive, industrial motor control, and harsh-environment use |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability per stress test requirements including HTGB, HTRB, and TCT |
| MSL Level | Level 1 (per J-STD-020) - allows unlimited floor life and standard reflow without baking preconditioning |
Pinout & Package
Package: SMPC (TO-277A), surface-mount, 3-terminal configuration with cathode band marking. Dimensions: 4.80 × 3.70 × 1.10 mm (L × W × H), matte tin-plated leads, RoHS-compliant and halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 3) | Surge current return path | Connected to ground or low-impedance reference; carries full IPPM during clamping |
| Cathode 1 (Pin 1) | Protected line connection | Directly ties to input rail or signal line requiring overvoltage protection |
| Cathode 2 (Pin 2) | Protected line connection | Parallel cathode terminal enabling higher surge current handling vs. single-cathode devices |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation optimized design | Enables stable VBR and low leakage over 1000+ surge cycles at rated PPPM |
| TJ = 185 °C capability | Supports continuous operation in engine control units and power inverters without derating |
| Very low profile (1.1 mm typical height) | Reduces board stack height and improves airflow in sealed enclosures |
| Meets MSL Level 1 | Eliminates pre-reflow baking, reducing manufacturing cost and process complexity |
| AEC-Q101 qualified | Validated for automotive electronics per stress tests including temperature cycling and high-temp reverse bias |
Applications
| Automotive Engine Control Unit (ECU) | Industrial Motor Drive Power Supply |
|---|---|
Use Scenario: Protection of 12 V battery-fed microcontroller power inputs against load dump and alternator transients. IC Role / Device Role: Primary unidirectional TVS clamp on main VDD rail upstream of DC/DC converter. Use Value: Clamps to 12.1 V at 200 A, preventing damage to 16-bit MCU and CAN transceivers during ISO 7637-2 Pulse 5a events. |
Use Scenario: Surge suppression on 24 V DC bus feeding gate drivers and current sensors in servo drives. IC Role / Device Role: High-power transient shunt placed across bulk capacitor terminals. Use Value: 1500 W peak power rating handles repeated IGBT switching-induced spikes without degradation. |
| Automotive ADAS Camera Module | Telecom Base Station Power Interface |
Use Scenario: Input protection for 5 V imaging sensor supply in rear-view camera exposed to cable discharge events. IC Role / Device Role: Unidirectional TVS on FPD-Link III power line, co-located with ESD diode array. Use Value: 7.02 V VWM avoids false triggering during cold-cranking dips; 185 °C rating supports under-hood mounting. |
Use Scenario: Secondary-side surge protection on -48 V telecom power feed entering remote radio head enclosure. IC Role / Device Role: Back-to-back unidirectional TVS pair (anode-to-anode) for bidirectional clamping on DC input. Use Value: Low-profile SMPC package fits tight 1U chassis spacing; AEC-Q101 qualification ensures long-term field reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ8.0A | Lower PPPM (400 W), SMA package (higher thermal resistance), VBR = 8.89–9.82 V | Not AEC-Q101 qualified; limited to consumer/industrial grade where 185 °C operation not required | Select when cost sensitivity outweighs automotive qualification and surge energy demands |
| TPC8.2AHM3/87A | 1500 W PPPM, TO-277A package, VBR = 7.79–8.61 V, AEC-Q101 qualified, TJ = 185 °C | Designed for automotive and high-reliability industrial systems requiring sustained surge immunity | Preferred for ECU, ADAS, and motor drive applications demanding highest energy absorption and temperature margin |
Compared with SMAJ8.0A and P6SMB8.0A, TPC8.2AHM3/87A delivers 3.75× higher peak power, 120 °C higher max junction temperature, and automotive-grade qualification-enabling single-device protection in space- and reliability-constrained automotive modules without derating or parallel devices.
Availability
TPC8.2AHM3/87A is available at Aetrix Electronics and suitable for automotive engine control units, industrial motor drives, ADAS camera modules, and telecom base station power interfaces requiring stable component supply and long-term lifecycle assurance.
Supply support for TPC8.2AHM3/87A 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, MOSFETs, and optoelectronics with emphasis on reliability and performance in harsh environments.
The TPC series is part of Vishay's PAR® transient voltage suppressor family, engineered specifically for high-energy, high-temperature automotive and industrial surge protection with AEC-Q101 compliance and extended thermal capability.
FAQ
What is the clamping voltage of TPC8.2AHM3/87A at its rated peak pulse current?
The clamping voltage VC of TPC8.2AHM3/87A is 12.1 V at IPPM = 200 A, measured under 10/1000 μs waveform conditions. This value ensures protected circuits remain below critical voltage thresholds during standardized surge events such as ISO 7637-2 Pulse 5a. The TPC8.2AHM3/87A maintains this clamping performance across its full operating temperature range.
Is TPC8.2AHM3/87A qualified for automotive applications?
Yes, TPC8.2AHM3/87A is AEC-Q101 qualified and rated for junction temperatures up to +185 °C, making it suitable for under-hood automotive applications including engine control units and ADAS modules. Its qualification covers high-temperature reverse bias, temperature cycling, and humidity testing per automotive reliability standards.
What package type does TPC8.2AHM3/87A use, and what are its key mechanical features?
TPC8.2AHM3/87A uses the SMPC (TO-277A) surface-mount package with dimensions of 4.80 × 3.70 × 1.10 mm. Key features include matte tin-plated leads compliant with J-STD-002, MSL Level 1 rating, UL 94 V-0 molding compound, and a cathode band marking for polarity identification. The low profile supports high-density PCB assembly.
How does the breakdown voltage tolerance of TPC8.2AHM3/87A affect circuit design?
The breakdown voltage VBR of TPC8.2AHM3/87A is specified as 7.79–8.61 V at 10 mA, providing a ±5 % nominal tolerance around 8.2 V. This tight distribution allows designers to confidently set VWM at 7.02 V while ensuring reliable clamping onset above normal operating voltage-critical for protecting 5 V or 8 V logic rails without false triggering.
Can TPC8.2AHM3/87A be used in bidirectional configurations?
No, TPC8.2AHM3/87A is unidirectional only, as confirmed in the Vishay datasheet. For bidirectional protection, two TPC8.2AHM3/87A devices must be connected anode-to-anode. This configuration provides symmetrical clamping but requires careful layout to balance surge current sharing; the TPC8.2AHM3/87A itself does not support reverse-polarity conduction.
TPC8.2AHM3/87A 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:
- 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):
- 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)
TPC8.2AHM3/87A FAQ
1.How can I place an order for TPC8.2AHM3/87A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC8.2AHM3/87A 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 TPC8.2AHM3/87A reliable?
The price and inventory of TPC8.2AHM3/87A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPC8.2AHM3/87A is usually 5 days.
3.What payment methods are accepted for TPC8.2AHM3/87A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC8.2AHM3/87A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC8.2AHM3/87A?
TPC8.2AHM3/87A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC8.2AHM3/87A 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 TPC8.2AHM3/87A?
For technical support, including TPC8.2AHM3/87A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC8.2AHM3/87A requirements.
6.How does Aetrix verify that TPC8.2AHM3/87A is sourced from the original manufacturer or authorized distributors?
All TPC8.2AHM3/87A 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 TPC8.2AHM3/87A meets industry standards.
7.What is the process for return or replacement of TPC8.2AHM3/87A?
All TPC8.2AHM3/87A units undergo pre-shipment inspection (PSI). If there is an issue with TPC8.2AHM3/87A, 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 TPC8.2AHM3/87A part is unused and in its original packaging.
Return procedure for TPC8.2AHM3/87A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC8.2AHM3/87A Tags
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