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Vishay General Semiconductor - Diodes Division TPC7.5AHM3_A/H
- Part No.:
- TPC7.5AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC7.5AHM3_A/H.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:5,158
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Product details
Overview
TPC7.5AHM3_A/H 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 7.13–7.88 V at 10 mA, clamping voltage of 11.3 V at 133 A peak pulse current, and operates across -65 °C to +185 °C junction temperature range - ideal for automotive power line and MOSFET gate protection.
For engineers reviewing the TPC7.5AHM3_A/H datasheet, TPC7.5AHM3_A/H pinout, TPC7.5AHM3_A/H application, or TPC7.5AHM3_A/H equivalent, key selection criteria include its AEC-Q101 qualification, 185 °C TJ max rating, low-profile 1.1 mm height, MSL Level 1 moisture sensitivity, and uni-directional clamping behavior in high-reliability automotive and industrial circuits.
Technical Context
The TPC7.5AHM3_A/H employs passivated anisotropic rectifier technology optimized for fast transient response and low incremental surge resistance. Its unidirectional architecture provides forward-biased clamping only, with VF = 3.5 V at 100 A and IR ≤ 500 μA at 6.40 V standoff voltage.
Rated for 1500 W peak pulse power (10/1000 μs waveform), it delivers 133 A IPPM and clamps to 11.3 V under surge conditions. The device meets JESD201 Class 2 whisker test requirements and is halogen-free, RoHS-compliant, and qualified per AEC-Q101 for automotive-grade reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR min/max | 7.13 V / 7.88 V at 10 mA - defines precise breakdown threshold for reliable triggering during transients |
| VWM | 6.40 V - maximum continuous reverse operating voltage before leakage exceeds 500 μA |
| VC @ IPPM | 11.3 V at 133 A - clamping voltage limiting protected circuit stress during 1500 W surge events |
| PPPM | 1500 W - peak pulse power handling capability per 10/1000 μs waveform, derated above 25 °C |
| TJ max | +185 °C - enables operation in under-hood automotive environments without thermal derating penalties |
| Package | TO-277A (SMPC) - surface-mount, low-profile (1.1 mm typical height), AEC-Q101 qualified package |
| Moisture Sensitivity | MSL Level 1 - no floor life limitation; suitable for standard reflow without baking |
Pinout & Package
TO-277A (SMPC) package with three terminals: Anode (Pin 1), Cathode 1 (Pin 2), Cathode 2 (Pin A). Matte tin-plated leads meet J-STD-002 and JESD22-B102 solderability standards. HM3 suffix denotes halogen-free, RoHS-compliant, and AEC-Q101 qualified construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward conduction path input | Connected to protected line; conducts during overvoltage to shunt energy to ground via cathodes |
| Cathode 1 (Pin 2) | Primary clamping return | Low-inductance path to ground; shares current with Cathode 2 during high-surge events |
| Cathode 2 (Pin A) | Secondary clamping return | Parallel cathode terminal enabling higher surge current handling and reduced thermal resistance |
Key Features
| Feature | Design Value |
|---|---|
| Uni-directional clamping | Enables integration on DC power rails without reverse-bias leakage concerns; avoids signal distortion on bidirectional lines |
| 185 °C junction rating | Supports placement near heat sources in engine control units and power inverters without derating |
| 1.1 mm profile | Reduces board space and enables use in ultra-thin modules such as ADAS camera housings and compact ECUs |
| AEC-Q101 qualification | Validates reliability for automotive applications including powertrain, body electronics, and infotainment systems |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast transients like load dump and inductive switching spikes |
Applications
| Automotive Power Line Protection | MOSFET Gate Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs against ISO 7637-2 load dump and jump-start surges. IC Role / Device Role / Timing Role: Primary clamping device placed between power rail and ground, triggered within nanoseconds of overvoltage onset. Use Value: Limits rail voltage to ≤11.3 V during 133 A transients, preventing damage to downstream regulators and microcontrollers. |
Use Scenario: Shielding N-channel MOSFET gates from ESD and inductive turn-off spikes in motor drivers. IC Role / Device Role / Timing Role: Fast-acting clamp connected between gate and source, absorbing sub-100 ns spikes before gate oxide rupture. Use Value: With 3.5 V forward voltage and 185 °C rating, it sustains repeated gate clamping without degradation in high-temp motor control environments. |
| Industrial Sensor Interface Protection | Telecom DC Power Input Protection |
|
Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed on signal line to ground, suppressing EFT bursts and cable discharge events. Use Value: 500 μA max leakage at 6.40 V ensures minimal impact on precision 4–20 mA loop accuracy and offset stability. |
Use Scenario: Hardening -48 V telecom power inputs against lightning-induced surges and hot-swap transients. IC Role / Device Role / Timing Role: Front-end clamping element on primary DC input, coordinated with upstream fuses and secondary filtering. Use Value: 1500 W peak power rating and 11.3 V clamping enable compliance with ITU-T K.21 basic protection level without cascaded stages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ7.0A | Lower PPPM (400 W), higher VC (12 V), SMA package (larger footprint, lower surge current) | Not AEC-Q101 qualified; limited to commercial/industrial use; unsuitable for under-hood automotive | Select when cost-sensitive non-automotive designs require basic 7 V clamping with legacy SMA layout compatibility |
| TPC7.5AHM3_A/I | Identical electrical specs; differs only in packaging - 13" reel (6500 pcs) vs. 7" reel (1500 pcs) and I vs. H tape code | No functional difference; same AEC-Q101 qualification, TO-277A package, and thermal performance | Choose based on production volume and SMT line feeder compatibility - no design or reliability trade-offs |
Compared with SMAJ7.0A, TPC7.5AHM3_A/H delivers 275 % higher surge power handling and automotive-grade reliability; versus TPC7.5AHM3_A/I, it offers identical protection performance with optimized small-batch delivery logistics.
Availability
TPC7.5AHM3_A/H is available at Aetrix Electronics and suitable for automotive power line protection, MOSFET gate safeguarding, and industrial sensor interface hardening requiring stable component supply, long-term lifecycle support, and AEC-Q101 traceability.
Supply support for TPC7.5AHM3_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, TVS devices, and optoelectronics with emphasis on reliability and application-specific optimization.
The TPC7.5AHM3_A/H belongs to Vishay's PAR® series of high-power surface-mount TVS diodes, engineered specifically for automotive and industrial systems demanding AEC-Q101 compliance, high-temperature operation, and low-profile packaging.
FAQ
What is the clamping voltage of the TPC7.5AHM3_A/H under maximum surge conditions?
The TPC7.5AHM3_A/H clamps to 11.3 V at its rated peak pulse current of 133 A (10/1000 μs waveform). This value is measured per ANSI/IEEE C62.35 and confirmed in the Vishay datasheet revision 04-Nov-16. The clamping voltage remains stable across its full operating temperature range, making TPC7.5AHM3_A/H suitable for high-stress automotive transients where predictable voltage limiting is critical.
Is the TPC7.5AHM3_A/H AEC-Q101 qualified and what does that mean for automotive use?
Yes, the TPC7.5AHM3_A/H is explicitly AEC-Q101 qualified, as stated in the Vishay datasheet and marked by the HM3 suffix. This qualification validates its reliability for automotive applications including powertrain, chassis, and body electronics. TPC7.5AHM3_A/H has passed stress tests for temperature cycling, humidity, mechanical shock, and high-temperature operating life - confirming suitability for under-hood and safety-critical systems.
What is the standoff voltage (VWM) of the TPC7.5AHM3_A/H and how does it relate to system design?
The TPC7.5AHM3_A/H has a maximum working standoff voltage (VWM) of 6.40 V, meaning it remains non-conductive up to this DC or RMS voltage level while maintaining leakage ≤500 μA. This allows safe integration on 5 V logic rails or 6 V auxiliary supplies. Designers must ensure nominal system voltage stays below 6.40 V to avoid premature conduction - a key constraint when selecting TPC7.5AHM3_A/H for 5 V or 6 V applications.
Does the TPC7.5AHM3_A/H have a unidirectional or bidirectional configuration?
The TPC7.5AHM3_A/H is strictly unidirectional, as confirmed in the Vishay datasheet under FEATURES ("Uni-direction only") and ELECTRICAL CHARACTERISTICS (no reverse breakdown specification). It functions as a forward-biased avalanche diode, conducting only when anode voltage exceeds cathode by ≥7.13 V. Bidirectional protection requires pairing two devices or selecting a dedicated bi-directional variant - TPC7.5AHM3_A/H is not interchangeable with bi-directional TVS types.
What package type does the TPC7.5AHM3_A/H use and what are its mounting advantages?
The TPC7.5AHM3_A/H uses the TO-277A (SMPC) surface-mount package - a 3-terminal, low-profile outline conforming to JEDEC standards. With a typical height of 1.1 mm and MSL Level 1 rating, it supports automated placement without baking, reduces PCB real estate, and improves thermal dissipation via dual cathode terminals. Its matte tin plating ensures compatibility with lead-free reflow profiles, making TPC7.5AHM3_A/H ideal for high-volume automotive and industrial manufacturing.
TPC7.5AHM3_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):
- 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_A/H FAQ
1.How can I place an order for TPC7.5AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC7.5AHM3_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 TPC7.5AHM3_A/H reliable?
The price and inventory of TPC7.5AHM3_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 TPC7.5AHM3_A/H is usually 5 days.
3.What payment methods are accepted for TPC7.5AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC7.5AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC7.5AHM3_A/H?
TPC7.5AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC7.5AHM3_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 TPC7.5AHM3_A/H?
For technical support, including TPC7.5AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC7.5AHM3_A/H requirements.
6.How does Aetrix verify that TPC7.5AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All TPC7.5AHM3_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 TPC7.5AHM3_A/H meets industry standards.
7.What is the process for return or replacement of TPC7.5AHM3_A/H?
All TPC7.5AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPC7.5AHM3_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 TPC7.5AHM3_A/H part is unused and in its original packaging.
Return procedure for TPC7.5AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC7.5AHM3_A/H Tags
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