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Vishay General Semiconductor - Diodes Division TPC7.5AHM3/86A
- Part No.:
- TPC7.5AHM3/86A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC7.5AHM3/86A.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:5,495
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Product details
Overview
TPC7.5AHM3/86A 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 electronics protection. It features a 7.5 V nominal breakdown voltage (VBR), 6.4 V stand-off voltage (VWM), 133 V maximum clamping voltage at 133 A peak pulse current, and AEC-Q101 qualification for under-hood applications.
For engineers reviewing the TPC7.5AHM3/86A datasheet, TPC7.5AHM3/86A pinout, TPC7.5AHM3/86A application, or TPC7.5AHM3/86A equivalent, key selection criteria include unidirectional surge capability, 185 °C junction temperature rating, low-profile 1.1 mm height, MSL Level 1 compliance, and halogen-free RoHS-compliant construction per HM3 suffix.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology to deliver stable breakdown behavior and low incremental surge resistance. Its junction passivation enables reliable operation up to TJ = 185 °C, supporting automotive-grade thermal cycling and long-term reliability in harsh environments.
The device responds within nanoseconds to transient overvoltages induced by inductive load switching or ESD events. Its 10/1000 μs waveform-rated 1500 W peak pulse power and 133 A IPPM are validated per ANSI/IEEE C62.35, with clamping performance specified at 133 V - critical for protecting downstream MOSFETs and ICs operating below 12 V rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (Nominal) | 7.5 V - ensures precise triggering above system operating voltage while maintaining margin against false trips |
| VWM | 6.4 V - maximum continuous reverse voltage before leakage exceeds 500 μA, compatible with 5 V–6 V logic and sensor supply rails |
| VC @ IPPM | 133 V - clamping voltage at 133 A peak pulse current, limiting energy delivered to protected circuitry |
| PPPM | 1500 W - peak pulse power handling per 10/1000 μs waveform, sufficient for ISO 7637-2 Pulse 1/2a/5a transients |
| TJ max. | 185 °C - extended junction temperature rating enables placement near heat sources in engine control units and power modules |
| Package | SMPC (TO-277A) - surface-mount, 3-terminal, low-profile (1.1 mm typical height) package optimized for automated assembly and space-constrained PCBs |
| AEC-Q101 | Qualified - certified for automotive electronic systems per stress test requirements including HTOL, TC, and HTRB |
Pinout & Package
TPC7.5AHM3/86A uses the SMPC (TO-277A) package: a 3-terminal, single-anode/two-cathode configuration with cathode band marking on terminal 1. The package has a 1.1 mm typical height, 3.70 mm × 4.80 mm footprint, and matte tin-plated leads compliant with J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Primary cathode connection | Marked with cathode band; connects to protected line (e.g., 12 V rail or signal trace) for unidirectional clamping to ground |
| 2 (Cathode) | Secondary cathode connection | Internally tied to Pin 1; provides redundant low-inductance path and improved current sharing during high-surge events |
| 3 (Anode) | Anode connection | Connected to system ground; completes clamping path when transient exceeds VBR; requires low-impedance ground plane |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Enables stable VBR drift < ±5 % over lifetime and >1000 hrs HTOL at 175 °C |
| Low profile (1.1 mm height) | Reduces board-level mechanical stress during thermal cycling and allows placement under connectors or shields |
| MSL Level 1 rating | Permits unlimited floor life and reflow without baking, simplifying SMT line integration |
| Halogen-free & RoHS | Meets automotive material compliance standards (Vishay Doc. 99912) and eliminates corrosive outgassing in sealed enclosures |
| Whisker-resistant (JESD 201 Class 2) | Prevents tin whisker growth under high humidity and bias, critical for long-life automotive modules |
Applications
| Automotive Power Distribution | Industrial Motor Drive Protection |
|---|---|
Use Scenario: Protecting 12 V power lines feeding ECUs, body controllers, and lighting modules from load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and local regulator input to clamp surges before they reach LDOs or microcontrollers. Use Value: Withstands ISO 7637-2 Pulse 5a (75 V/350 ms) and clamps to ≤133 V, preserving downstream 16 V-rated regulators and enabling robust BOM design. | Use Scenario: Safeguarding gate drivers and current-sense amplifiers in 24 V/48 V motor control inverters exposed to inductive kickback. IC Role / Device Role / Timing Role: Mounted across half-bridge DC bus or gate drive supply to absorb flyback energy from IGBT/MOSFET turn-off. Use Value: 1500 W peak power rating and 133 A IPPM handle repetitive 100 A+ switching events without degradation, extending system MTBF. |
| Automotive Sensor Interface Protection | Telecom Power Supply Input Stage |
Use Scenario: Shielding LIN/CAN transceiver inputs and analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Placed at connector entry point to shunt fast transients (<1 ns rise time) before reaching sensitive front-end circuitry. Use Value: Nanosecond response time and 133 V clamping limit voltage excursion below 15 V absolute maximum ratings of most automotive-grade transceivers. | Use Scenario: Front-end surge suppression on 48 V telecom power supplies subjected to lightning-induced surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: Primary TVS in series with MOV or GDT for coordinated staged clamping in AC/DC and DC/DC converter inputs. Use Value: 185 °C TJ rating supports operation in sealed, fanless telecom cabinets where ambient temperatures exceed 85 °C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ7.0A | Lower PPPM (400 W), SMA package (higher thermal resistance), VC = 12.4 V @ 32.4 A | Not AEC-Q101 qualified; limited to commercial/industrial use; unsuitable for under-hood automotive | Select only for cost-sensitive non-automotive designs with lower surge exposure and no high-temperature requirement |
| TPC7.5AHM3_A | Same electrical specs and SMPC package; differs only in tape-and-reel packaging (1500 pcs/reel vs. 86A's 6500 pcs/reel) | No functional or application difference; identical performance and mounting | Choose TPC7.5AHM3_A for prototyping or low-volume builds; TPC7.5AHM3/86A preferred for high-volume production with reduced handling cost |
Compared with SMAJ7.0A, TPC7.5AHM3/86A delivers 3.75× higher surge power, automotive qualification, and superior thermal performance; versus TPC7.5AHM3_A, it offers identical protection but optimized logistics for large-scale manufacturing via 13″ reel delivery.
Availability
TPC7.5AHM3/86A is available at Aetrix Electronics and suitable for automotive power distribution, industrial motor drive protection, and telecom power supply input stage applications requiring stable component supply, AEC-Q101 compliance, and high-temperature reliability.
Supply support for TPC7.5AHM3/86A 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, efficiency, and application-specific optimization.
TPC7.5AHM3/86A belongs to Vishay's PAR® series of high-power surface-mount TVS diodes, engineered specifically for automotive-grade transient suppression in engine control, ADAS, and electrified powertrain systems.
FAQ
What is the clamping voltage of TPC7.5AHM3/86A at its rated peak pulse current?
The TPC7.5AHM3/86A has a maximum clamping voltage (VC) of 133 V when subjected to its rated peak pulse current (IPPM) of 133 A under a 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and ensures predictable voltage limiting during surge events, protecting downstream components with 150 V or higher absolute maximum ratings. The TPC7.5AHM3/86A maintains this clamping performance across its full operating temperature range.
Is TPC7.5AHM3/86A suitable for automotive under-hood applications?
Yes, TPC7.5AHM3/86A is AEC-Q101 qualified and rated for junction temperatures up to 185 °C, making it suitable for under-hood automotive applications such as engine control units, transmission control modules, and battery management systems. Its SMPC package, halogen-free construction, and JESD 201 Class 2 whisker resistance further support long-term reliability in high-vibration, high-temperature environments. The TPC7.5AHM3/86A meets all stress test requirements defined in the AEC-Q101 standard.
How does the dual-cathode configuration of TPC7.5AHM3/86A improve surge handling?
The dual-cathode (Pins 1 and 2) configuration in the TPC7.5AHM3/86A reduces effective series inductance and distributes surge current across parallel paths, lowering incremental surge resistance and improving clamping consistency during high-di/dt events. This architecture enhances energy absorption capability and thermal spreading compared to single-cathode TVS devices. The TPC7.5AHM3/86A leverages this layout to sustain 1500 W peak pulse power without derating at elevated ambient temperatures.
What is the stand-off voltage (VWM) of TPC7.5AHM3/86A and why is it important?
The TPC7.5AHM3/86A has a stand-off voltage (VWM) of 6.4 V, which is the maximum DC or continuous reverse voltage the device can withstand without exceeding 500 μA leakage current. This parameter ensures compatibility with 5 V and 6 V logic rails and sensor supply lines, preventing false triggering during normal operation while allowing rapid conduction when transients exceed the 7.5 V breakdown threshold. Maintaining proper VWM margin is essential for stable system functionality - a key design consideration for the TPC7.5AHM3/86A.
Does TPC7.5AHM3/86A require special PCB layout considerations?
Yes, optimal performance of TPC7.5AHM3/86A requires short, wide traces to both cathode pins (1 and 2) and a low-inductance connection from anode (Pin 3) to a solid ground plane. The recommended mounting pad layout per JEDEC TO-277A specifies 0.268″ × 0.186″ pads with 0.050″ minimum solder mask clearance. Thermal vias under the anode pad improve heat dissipation. These practices minimize parasitic inductance and ensure the TPC7.5AHM3/86A achieves its rated 1500 W surge capability without voltage overshoot.
TPC7.5AHM3/86A 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):
- 6.4V
- Voltage - Breakdown (Min):
- 7.13V
- Voltage - Clamping (Max) @ Ipp:
- 11.3V
- Current - Peak Pulse (10/1000µs):
- 133A
- 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)
TPC7.5AHM3/86A FAQ
1.How can I place an order for TPC7.5AHM3/86A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC7.5AHM3/86A 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 TPC7.5AHM3/86A reliable?
The price and inventory of TPC7.5AHM3/86A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPC7.5AHM3/86A is usually 5 days.
3.What payment methods are accepted for TPC7.5AHM3/86A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC7.5AHM3/86A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC7.5AHM3/86A?
TPC7.5AHM3/86A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC7.5AHM3/86A 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 TPC7.5AHM3/86A?
For technical support, including TPC7.5AHM3/86A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC7.5AHM3/86A requirements.
6.How does Aetrix verify that TPC7.5AHM3/86A is sourced from the original manufacturer or authorized distributors?
All TPC7.5AHM3/86A 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 TPC7.5AHM3/86A meets industry standards.
7.What is the process for return or replacement of TPC7.5AHM3/86A?
All TPC7.5AHM3/86A units undergo pre-shipment inspection (PSI). If there is an issue with TPC7.5AHM3/86A, 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 TPC7.5AHM3/86A part is unused and in its original packaging.
Return procedure for TPC7.5AHM3/86A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC7.5AHM3/86A Tags
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