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Vishay General Semiconductor - Diodes Division TPC7.5AHM3_A/I
- Part No.:
- TPC7.5AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC7.5AHM3_A/I.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:8,608
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Product details
Overview
TPC7.5AHM3_A/I from Vishay General Semiconductor is a unidirectional 1500 W transient voltage suppressor (TVS) in TO-277A (SMPC) package, featuring 7.13 V to 7.88 V breakdown voltage (VBR), 6.40 V stand-off voltage (VWM), and 133 A peak pulse current (IPPM). It protects MOSFETs and ICs in automotive power circuits against inductive switching transients.
For engineers reviewing the TPC7.5AHM3_A/I datasheet, TPC7.5AHM3_A/I pinout, TPC7.5AHM3_A/I application, or TPC7.5AHM3_A/I equivalent, key selection criteria include its AEC-Q101 qualification, 185 °C junction temperature rating, low-profile 1.1 mm height, uni-directional clamping behavior, and compatibility with automated SMT placement on industrial and automotive PCBs.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for high-reliability transient suppression. Its unidirectional architecture provides forward conduction during overvoltage events while maintaining low leakage (<500 μA at VWM) and fast response time under 1 ns.
The device operates across -65 °C to +185 °C and meets MSL Level 1 per J-STD-020. Its TO-277A (SMPC) package features matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and passes JESD 201 Class 2 whisker testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.13 V / 7.88 V - defines precise clamping onset threshold for reliable overvoltage protection |
| VWM | 6.40 V - maximum continuous reverse operating voltage before leakage rises significantly |
| IPPM | 133 A - peak surge current handling capability under 10/1000 μs waveform |
| VC @ IPPM | 11.3 V - clamped voltage during full-rated surge, limiting stress on downstream components |
| TJ max. | +185 °C - enables operation in under-hood automotive environments without thermal derating |
| Package | TO-277A (SMPC) - ultra-low-profile surface-mount package with 1.1 mm typical height |
| AEC-Q101 | Qualified - certified for automotive-grade reliability per stress test requirements |
Pinout & Package
TPC7.5AHM3_A/I uses the TO-277A (SMPC) package: a 3-terminal, single-anode dual-cathode configuration with 1.1 mm profile, UL 94 V-0 molding compound, and JEDEC-compliant outline dimensions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 3) | Forward conduction path | Connected to system ground or low-side reference; conducts during transient clamp event |
| Cathode 1 (Pin 1) | Reverse-biased terminal | Connected to protected line (e.g., 12 V rail); blocks normal operation, avalanches during overvoltage |
| Cathode 2 (Pin 2) | Reverse-biased terminal | Electrically tied to Cathode 1 internally; provides mechanical stability and thermal path in SMPC layout |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier process ensures stable VBR tolerance and long-term leakage stability |
| Low-profile height | 1.1 mm typical - enables use in space-constrained modules including engine control units and ADAS sensors |
| Automated placement compatibility | Matte tin-plated leads meet J-STD-002 solderability standards for high-yield reflow assembly |
| High-temperature operation | Rated to +185 °C junction - eliminates need for thermal derating in under-hood applications |
| Whisker resistance | Meets JESD 201 Class 2 - prevents tin whisker growth in high-reliability automotive deployments |
Applications
| Automotive Power Rail Protection | Industrial Motor Drive Inputs |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load-dump and inductive kickback transients in vehicles. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and ground to clamp surges above 6.4 V. Use Value: Limits clamped voltage to 11.3 V at 133 A, preventing damage to MCU power supplies and CAN transceivers. | Use Scenario: Safeguarding PLC input stages connected to solenoids and contactors subject to switching spikes. IC Role / Device Role / Timing Role: Standoff protector on 24 V DC input lines, absorbing repetitive 1500 W pulses. Use Value: Withstands >1000 surges at rated power due to low incremental surge resistance and 185 °C TJ rating. |
| Automotive Sensor Signal Line Protection | Telecom Power Interface |
Use Scenario: Shielding LIN bus or analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance unidirectional clamp on signal-to-ground path near connector entry. Use Value: Fast sub-nanosecond response preserves signal integrity while meeting ISO 10605 ESD immunity requirements. | Use Scenario: Front-end protection of PoE-powered equipment interfaces exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary surge arrestor on DC input before DC/DC converter stage. Use Value: 1500 W peak power rating handles telecom-grade surge waveforms (10/1000 μs) without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ7.0A | Lower PPPM (400 W), higher VC (12 V), SMA package (3.5 mm height) | Not AEC-Q101 qualified; limited to commercial/industrial use | Select when cost sensitivity outweighs automotive qualification and surge margin |
| TPC7.0AHM3_A/I | Lower VBR range (6.65–7.35 V), same TO-277A package and 1500 W rating | Narrower clamping window; better suited for 5 V logic rails with tighter margins | Choose for designs requiring lower turn-on threshold while retaining identical footprint and thermal performance |
Compared with SMAJ7.0A and TPC7.0AHM3_A/I, the TPC7.5AHM3_A/I delivers superior automotive compliance, higher surge margin, and lower profile-making it optimal for space-constrained, high-reliability 12 V systems where clamping precision and thermal robustness are critical.
Availability
TPC7.5AHM3_A/I is available at Aetrix Electronics and suitable for automotive power management, industrial motor control, and telecom interface protection requiring stable component supply and long-term lifecycle support.
Supply support for TPC7.5AHM3_A/I 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, and protection devices with emphasis on reliability and application-specific optimization.
The TPC series belongs to Vishay's PAR® family of high-power TVS diodes, engineered specifically for automotive and industrial transient suppression where AEC-Q101 compliance, high-temperature operation, and low-profile packaging are mandatory.
FAQ
What is the breakdown voltage range of the TPC7.5AHM3_A/I?
The TPC7.5AHM3_A/I has a specified breakdown voltage (VBR) range of 7.13 V to 7.88 V at 10 mA test current, measured per ANSI/IEEE C62.35. This tight tolerance ensures consistent clamping behavior across production lots and supports precise overvoltage protection design in 12 V automotive systems where the TPC7.5AHM3_A/I is commonly deployed.
Is the TPC7.5AHM3_A/I suitable for automotive applications?
Yes, the TPC7.5AHM3_A/I is AEC-Q101 qualified and rated for junction temperatures up to +185 °C, making it suitable for under-hood and powertrain applications. Its TO-277A package, halogen-free construction, and JESD 201 Class 2 whisker resistance further confirm its suitability for automotive-grade deployment - a key differentiator of the TPC7.5AHM3_A/I versus generic TVS diodes.
What does the "HM3_A/I" suffix indicate in TPC7.5AHM3_A/I?
The "HM3" denotes Vishay's halogen-free, RoHS-compliant, AEC-Q101-qualified TO-277A package; "A" is the revision code; "I" specifies 13-inch tape-and-reel packaging with 6500 units per reel. This distinguishes the TPC7.5AHM3_A/I from variants like TPC7.5AHM3_A/H (7-inch reel, 1500 units), ensuring correct logistics and assembly planning for the TPC7.5AHM3_A/I.
How does the clamping voltage of the TPC7.5AHM3_A/I compare to its stand-off voltage?
The TPC7.5AHM3_A/I has a stand-off voltage (VWM) of 6.40 V and a maximum clamping voltage (VC) of 11.3 V at 133 A. This 4.9 V differential provides a robust safety margin for protecting 5 V or 12 V ICs - the TPC7.5AHM3_A/I begins conducting near 7.1 V and limits transient energy to safe levels well below damage thresholds of common automotive semiconductors.
Can the TPC7.5AHM3_A/I replace a bidirectional TVS in existing designs?
No - the TPC7.5AHM3_A/I is unidirectional only and must be oriented correctly (anode to ground) to function. Using it in place of a bidirectional device would leave negative-going transients unprotected. Designers must verify polarity requirements and signal swing range before substituting the TPC7.5AHM3_A/I; its unidirectional nature is a defined feature, not a limitation, for DC rail protection where polarity is fixed.
TPC7.5AHM3_A/I 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/I FAQ
1.How can I place an order for TPC7.5AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC7.5AHM3_A/I 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/I reliable?
The price and inventory of TPC7.5AHM3_A/I 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/I is usually 5 days.
3.What payment methods are accepted for TPC7.5AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC7.5AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC7.5AHM3_A/I?
TPC7.5AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC7.5AHM3_A/I 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/I?
For technical support, including TPC7.5AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC7.5AHM3_A/I requirements.
6.How does Aetrix verify that TPC7.5AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All TPC7.5AHM3_A/I 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/I meets industry standards.
7.What is the process for return or replacement of TPC7.5AHM3_A/I?
All TPC7.5AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPC7.5AHM3_A/I, 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/I part is unused and in its original packaging.
Return procedure for TPC7.5AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC7.5AHM3_A/I Tags
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