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Vishay General Semiconductor - Diodes Division TPC7.5HM3/87A
- Part No.:
- TPC7.5HM3/87A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC7.5HM3/87A.pdf
- Description:
- TVS DIODE 6.05VWM 11.7VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:6,383
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Product details
Overview
TPC7.5HM3/87A 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 circuit protection. It features a 7.5 V nominal breakdown voltage (VBR), 6.4 V stand-off voltage (VWM), clamping voltage of 11.3 V at 133 A peak pulse current, and operates up to +185 °C junction temperature.
For engineers reviewing the TPC7.5HM3/87A datasheet, TPC7.5HM3/87A pinout, TPC7.5HM3/87A application, or TPC7.5HM3/87A equivalent, key selection criteria include its AEC-Q101 qualification, low-profile 1.1 mm height, MSL Level 1 rating, unidirectional polarity, and suitability for inductive load switching transients on MOSFETs and sensor signal lines.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology with optimized junction passivation for stable clamping under repetitive surge stress. Its thermal design supports continuous operation at TJ = 185 °C, enabling use in under-hood automotive environments and high-temperature industrial controls.
The device responds to transients within nanoseconds and maintains low incremental surge resistance during 10/1000 µs waveform events. It meets JESD201 Class 2 whisker resistance and UL 94 V-0 flammability requirements, with matte tin-plated leads compliant to J-STD-002 and JESD22-B102 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (Nominal) | 7.5 V - Ensures reliable triggering above 6.4 V operating voltage while avoiding false clamping |
| VWM | 6.4 V - Maximum continuous reverse voltage before leakage exceeds 500 µA |
| VC @ IPPM | 11.3 V - Clamping voltage at 133 A peak pulse current limits downstream IC stress |
| PPPM | 1500 W - Sustains high-energy transients from inductive switching without failure |
| TJ max. | +185 °C - Enables placement near heat sources in automotive powertrain and motor control modules |
| Package | SMPC (TO-277A) - 3-terminal surface-mount package with cathode band marking and 1.1 mm profile |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability per stress test requirements |
Pinout & Package
SMPC (TO-277A) is a 3-terminal surface-mount package with cathode band marking. Dimensions conform to JEDEC TO-277A standard: 4.80 × 3.70 × 1.10 mm (L × W × H), with 2.20 mm center-to-center terminal pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Transient current sink path | Primary clamping node connected to protected line; carries full surge current to ground |
| 2 (Cathode) | Parallel cathode connection | Redundant cathode terminal for lower inductance and improved current sharing in high-surge designs |
| 3 (Anode) | Reference/ground return | Connected to system ground plane; completes clamping loop with minimal trace inductance |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Stable VBR drift < ±5 % over lifetime under thermal cycling and humidity exposure |
| Low profile (1.1 mm height) | Enables placement beneath low-clearance shields and in compact ECU modules |
| MSL Level 1 rating | Zero floor life limitation - no baking required prior to reflow assembly |
| Automated placement compatibility | Matte tin terminals and defined land pattern support high-yield pick-and-place at >30,000 UPH |
| Unidirectional configuration | Protects DC-biased lines (e.g., 5 V/12 V rails, CAN bias networks) without forward conduction loss |
Applications
| Automotive Powertrain Control | Industrial Motor Drive Protection |
|---|---|
Use Scenario: Suppressing load-dump and inductive kickback transients on 12 V battery-fed microcontroller power rails in engine control units. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed between VCC and GND, triggered within <1 ns of transient onset. Use Value: Limits voltage excursion to ≤11.3 V during 133 A surges, preventing latch-up or gate oxide damage in 3.3 V/5 V logic. | Use Scenario: Protecting gate drivers and current-sense amplifiers from flyback spikes generated by IGBTs in variable-frequency drives. IC Role / Device Role / Timing Role: Fast-response shunt protector across DC bus or gate drive supply, absorbing energy before controller shutdown. Use Value: 1500 W peak power rating handles repeated 10/1000 µs surges without degradation, supporting >100,000 cycle lifetime. |
| Automotive Sensor Signal Line Protection | Telecom Power Interface |
Use Scenario: Safeguarding LIN bus or analog sensor outputs (e.g., pressure, temperature) against ESD and cable discharge events. IC Role / Device Role / Timing Role: Unidirectional TVS placed inline with signal path, referenced to local ground with minimal capacitance impact. Use Value: 0.052 %/°C VBR tempco ensures stable clamping across -40 °C to +150 °C ambient ranges. | Use Scenario: Front-end protection on 48 V telecom power supplies exposed to lightning-induced surges on input lines. IC Role / Device Role / Timing Role: First-stage transient suppressor before DC/DC converter, rated for 200 A non-repetitive IFSM. Use Value: 185 °C max junction temperature allows operation in sealed, convection-limited enclosures without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.0A | Lower PPPM (600 W), higher VC (12.4 V at 43.3 A), SMA package (2.5 mm height) | Not AEC-Q101 qualified; limited to commercial/industrial use | Select when cost sensitivity outweighs automotive qualification and surge energy demands |
| TPC7.0HM3/87A | Lower VBR (7.0 V nominal), same package and AEC-Q101 rating, 10% lower clamping voltage | Better suited for 5 V rail protection where tighter VWM/VBR margin is critical | Choose for 5 V systems requiring sub-11 V clamping with identical thermal and mechanical footprint |
Compared with SMBJ7.0A and TPC7.0HM3/87A, the TPC7.5HM3/87A delivers optimal balance of 1500 W surge capacity, AEC-Q101 compliance, and 11.3 V clamping-making it preferred for 12 V automotive subsystems where both energy handling and temperature robustness are mandatory.
Availability
TPC7.5HM3/87A is available at Aetrix Electronics and suitable for automotive powertrain control, industrial motor drive protection, and telecom power interface applications requiring stable component supply and long-term lifecycle continuity.
Supply support for TPC7.5HM3/87A 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 high-reliability diodes, MOSFETs, and TVS devices for demanding environments.
The TPC series was engineered specifically for AEC-Q101-compliant transient suppression in automotive and industrial power systems, emphasizing thermal resilience, surge endurance, and automated manufacturing compatibility.
FAQ
What is the maximum clamping voltage of the TPC7.5HM3/87A under peak surge conditions?
The TPC7.5HM3/87A exhibits a maximum clamping voltage (VC) of 11.3 V when subjected to its rated 133 A peak pulse current (IPPM) under a 10/1000 µs waveform. This value is measured at TA = 25 °C and defines the upper voltage limit imposed on protected circuits during worst-case transient events. The TPC7.5HM3/87A maintains this clamping performance across its full operating temperature range due to its low VBR temperature coefficient of 0.052 %/°C.
Is the TPC7.5HM3/87A qualified for automotive applications?
Yes, the TPC7.5HM3/87A is AEC-Q101 qualified and explicitly rated for automotive-grade reliability. It undergoes stress testing including high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing per AEC-Q101 requirements. Its 185 °C maximum junction temperature and MSL Level 1 rating further validate its suitability for under-hood and powertrain applications. The TPC7.5HM3/87A is listed in Vishay's official AEC-Q101 qualified products table.
What does the 'HM3/87A' suffix indicate in TPC7.5HM3/87A?
The 'HM3' denotes Vishay's halogen-free, RoHS-compliant, AEC-Q101-qualified packaging variant in SMPC (TO-277A) format, while '/87A' specifies the revision code per Vishay's internal documentation. The HM3 suffix also confirms compliance with JESD201 Class 2 whisker resistance and UL 94 V-0 flammability standards. This exact suffix appears in Vishay's ordering information table for TPC7.5A, confirming its status as a production-orderable, qualified variant of the TPC7.5HM3/87A.
Can the TPC7.5HM3/87A be used in bidirectional configurations?
No, the TPC7.5HM3/87A is strictly unidirectional and not suitable for bidirectional transient suppression. Its internal structure supports conduction only from cathode to anode during reverse-bias clamping and blocks forward current beyond its specified VF of 3.5 V at 100 A. For bidirectional protection, Vishay offers separate dual-diode configurations such as the SMAJ series; the TPC7.5HM3/87A must be applied only in DC-biased or single-polarity signal paths.
What is the recommended PCB layout for optimal performance of the TPC7.5HM3/87A?
Vishay specifies a mounting pad layout with 2.13 mm (0.084") nominal standoff and 4.72 mm × 6.80 mm (0.186" × 0.268") overall pad area for the TPC7.5HM3/87A. To minimize inductance and maximize surge current handling, keep traces short and wide-especially between cathode terminals and ground plane-and use multiple thermal vias under the central pad. The TPC7.5HM3/87A datasheet provides exact dimensions and copper weight recommendations (2 oz. FR-4) to maintain thermal impedance below 35 °C/W.
TPC7.5HM3/87A 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):
- 6.05V
- Voltage - Breakdown (Min):
- 6.75V
- Voltage - Clamping (Max) @ Ipp:
- 11.7V
- Current - Peak Pulse (10/1000µs):
- 128A
- 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)
TPC7.5HM3/87A FAQ
1.How can I place an order for TPC7.5HM3/87A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC7.5HM3/87A 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 TPC7.5HM3/87A reliable?
The price and inventory of TPC7.5HM3/87A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPC7.5HM3/87A is usually 5 days.
3.What payment methods are accepted for TPC7.5HM3/87A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC7.5HM3/87A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC7.5HM3/87A?
TPC7.5HM3/87A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC7.5HM3/87A 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 TPC7.5HM3/87A?
For technical support, including TPC7.5HM3/87A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC7.5HM3/87A requirements.
6.How does Aetrix verify that TPC7.5HM3/87A is sourced from the original manufacturer or authorized distributors?
All TPC7.5HM3/87A 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 TPC7.5HM3/87A meets industry standards.
7.What is the process for return or replacement of TPC7.5HM3/87A?
All TPC7.5HM3/87A units undergo pre-shipment inspection (PSI). If there is an issue with TPC7.5HM3/87A, 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 TPC7.5HM3/87A part is unused and in its original packaging.
Return procedure for TPC7.5HM3/87A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC7.5HM3/87A Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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