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Vishay General Semiconductor - Diodes Division TPC7.5AHM3/87A
- Part No.:
- TPC7.5AHM3/87A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC7.5AHM3/87A.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:4,038
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Product details
Overview
TPC7.5AHM3/87A 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 electronics 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 TPC7.5AHM3/87A datasheet, TPC7.5AHM3/87A pinout, TPC7.5AHM3/87A application, or TPC7.5AHM3/87A equivalent, this page provides verified electrical parameters, AEC-Q101 qualification status, SMPC package mechanical data, and direct alternative part comparisons for surge protection design in automotive sensor interfaces, power supply rails, and MOSFET gate protection circuits.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology with junction passivation optimized for low incremental surge resistance and fast response time (<1 ns). Its unidirectional architecture enables precise reverse-biased clamping on DC power lines and signal paths without forward conduction during normal operation.
The device is rated for 1500 W peak pulse power (10/1000 µs waveform), supports 200 A non-repetitive forward surge current (8.3 ms half-sine), and maintains stable VBR across -65 °C to +185 °C operating range with ±0.052 %/°C temperature coefficient - critical for under-hood automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 7.13 V / 7.50 V / 7.88 V at 10 mA - defines precise clamping onset threshold for overvoltage events |
| VWM | 6.40 V - maximum continuous reverse voltage before leakage exceeds 500 µA, sets safe operating margin below VBR |
| VC @ IPPM | 11.3 V at 133 A - clamping voltage under full 1500 W surge, determines protected circuit's maximum stress level |
| IPPM | 133 A - peak pulse current capability with 10/1000 µs waveform, defines surge energy handling capacity |
| TJ max. | +185 °C - enables placement near heat sources in engine control units and ADAS modules without derating |
| Package | SMPC (TO-277A) - 3-pin surface-mount package with 1.1 mm profile, optimized for automated placement and high-density PCB layouts |
| AEC-Q101 | Qualified - certified for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing |
Pinout & Package
SMPC (TO-277A) is a 3-terminal surface-mount package with cathode band marking on terminal 1. The package features matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards, and meets JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Reverse-biased anode connection point | Connected to protected line (e.g., power rail or signal); conducts only during overvoltage transients |
| 2 (Cathode) | Second cathode terminal | Parallel cathode path for enhanced current sharing and lower dynamic impedance during surge |
| 3 (Anode) | Common anode reference | Connected to system ground; completes clamping path when VPROTECTED exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power rating | Handles high-energy transients from inductive load switching (e.g., solenoids, motors) without degradation |
| 1.1 mm typical height | Enables ultra-low-profile placement in space-constrained modules such as camera ECU housings and radar front-ends |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life before reflow, eliminating bake requirements and reducing assembly cost |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 Pulse 1/2a/5a), improving system immunity |
| Halogen-free, RoHS-compliant construction | Meets automotive OEM environmental compliance mandates including VW 80101 and GMW3172 |
Applications
| Automotive Sensor Protection | DC Power Rail Clamping |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and jump-start transients in vehicle body control modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and ground to clamp reverse-polarity and ESD events while preserving signal integrity. Use Value: Clamps to 11.3 V at 133 A, preventing damage to 5 V or 3.3 V interface ICs without affecting normal 0–5 V signal swing. |
Use Scenario: Safeguarding 12 V battery-fed microcontroller power inputs against ISO 16750-2 load dump surges up to 35 V for 400 ms. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main VDD rail upstream of LDO regulators and PMICs. Use Value: Withstands 1500 W peak power and 185 °C junction temperature, enabling direct placement on high-current power traces near connectors. |
| MOSFET Gate Protection | Industrial Motor Drive Snubbing |
|
Use Scenario: Shielding N-channel high-side MOSFET gates from Miller-induced voltage spikes during fast switching in BLDC inverters. IC Role / Device Role / Timing Role: Fast-response TVS connected between gate and source to limit dV/dt-induced gate oxide stress. Use Value: Sub-nanosecond response time and 7.5 V VBR ensure clamping occurs before gate threshold is exceeded, preventing unintended turn-on. |
Use Scenario: Suppressing commutation spikes on IGBT collector-emitter nodes in HVAC and pump motor drives subjected to repetitive inductive kickback. IC Role / Device Role / Timing Role: Unidirectional snubber across switching node to absorb stored inductive energy without DC conduction loss. Use Value: 200 A IFSM rating supports repeated 8.3 ms surge events per IEC 61000-4-5, extending power stage lifetime. |
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 (12.0 V @ 32.4 A), SMA package (larger footprint, 2.2 mm height) | Not AEC-Q101 qualified; limited to consumer/industrial use where automotive reliability not required | Select when cost sensitivity outweighs surge energy requirement and board height is not constrained. |
| TPC7.5AHM3_A | Identical electrical specs and SMPC package; differs only in tape-and-reel packaging (1500 pcs/reel vs. 87A's 6500 pcs/reel) and revision code | No functional difference; both meet same AEC-Q101, MSL Level 1, and halogen-free requirements | Choose TPC7.5AHM3/87A for high-volume production with 13″ reel logistics; TPC7.5AHM3_A suits pilot builds or smaller batches. |
Compared with SMAJ7.0A, TPC7.5AHM3/87A delivers 3.75× higher surge power handling and automotive qualification; versus TPC7.5AHM3_A, it offers identical protection performance with optimized logistics for large-scale manufacturing programs.
Availability
TPC7.5AHM3/87A is available at Aetrix Electronics and suitable for automotive ECUs, industrial motor controllers, and telecom power supplies requiring stable component supply, AEC-Q101 compliance, and high-temperature operational resilience.
Supply support for TPC7.5AHM3/87A 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, and protection devices with emphasis on reliability, thermal performance, and automotive-grade qualification.
The TPC7.5AHM3/87A belongs to Vishay's PAR® series of high-power TVS diodes, engineered specifically for robust transient suppression in harsh automotive and industrial environments where sustained 185 °C operation and AEC-Q101 validation are mandatory.
FAQ
What is the clamping voltage of TPC7.5AHM3/87A at its rated peak pulse current?
The TPC7.5AHM3/87A has a maximum clamping voltage (VC) of 11.3 V when subjected to its rated peak pulse current of 133 A using a 10/1000 µs waveform. This value is measured per JEDEC standard test conditions and ensures protected downstream components experience no more than 11.3 V during worst-case surge events. The low VC relative to VBR reflects its optimized low dynamic impedance design.
Is TPC7.5AHM3/87A suitable for automotive under-hood applications?
Yes, TPC7.5AHM3/87A is explicitly qualified to AEC-Q101 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 ADAS sensors. Its passivated anisotropic rectifier structure and MSL Level 1 rating further support reliability in thermally demanding, high-vibration environments.
How does the SMPC (TO-277A) package of TPC7.5AHM3/87A compare to SMA or SMC packages in terms of surge handling?
The SMPC (TO-277A) package used by TPC7.5AHM3/87A provides superior thermal dissipation and lower parasitic inductance compared to SMA or SMC packages, enabling its 1500 W peak pulse power rating. Its dual-cathode configuration reduces effective series resistance, resulting in lower clamping voltage and faster response than equivalent-rated SMAJ or SMBJ devices in the same VBR class.
Does TPC7.5AHM3/87A have a specified junction capacitance value?
No, the official Vishay datasheet for TPC7.5AHM3/87A does not specify junction capacitance (CJ). As a unidirectional TVS optimized for power-line protection rather than high-speed data lines, capacitance is not characterized in the published electrical specifications. For signal-line applications requiring known CJ, consult Vishay's SDUR or ESD9B series instead.
What is the meaning of the "87A" suffix in TPC7.5AHM3/87A?
The "87A" suffix in TPC7.5AHM3/87A indicates the preferred packaging option: 13-inch diameter plastic tape-and-reel with 6500 units per reel (package code "I"), and revision code "A". This distinguishes it from TPC7.5AHM3_A, which uses 7-inch tape-and-reel (1500 units/reel, package code "H") but shares identical electrical, thermal, and qualification characteristics.
TPC7.5AHM3/87A 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):
- 6.4V
- 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)
TPC7.5AHM3/87A FAQ
1.How can I place an order for TPC7.5AHM3/87A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC7.5AHM3/87A 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 TPC7.5AHM3/87A reliable?
The price and inventory of TPC7.5AHM3/87A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPC7.5AHM3/87A is usually 5 days.
3.What payment methods are accepted for TPC7.5AHM3/87A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC7.5AHM3/87A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC7.5AHM3/87A?
TPC7.5AHM3/87A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC7.5AHM3/87A 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 TPC7.5AHM3/87A?
For technical support, including TPC7.5AHM3/87A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC7.5AHM3/87A requirements.
6.How does Aetrix verify that TPC7.5AHM3/87A is sourced from the original manufacturer or authorized distributors?
All TPC7.5AHM3/87A 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 TPC7.5AHM3/87A meets industry standards.
7.What is the process for return or replacement of TPC7.5AHM3/87A?
All TPC7.5AHM3/87A units undergo pre-shipment inspection (PSI). If there is an issue with TPC7.5AHM3/87A, 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 TPC7.5AHM3/87A part is unused and in its original packaging.
Return procedure for TPC7.5AHM3/87A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC7.5AHM3/87A Tags
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