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Vishay General Semiconductor - Diodes Division TPC15AHM3_A/H
- Part No.:
- TPC15AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC15AHM3_A/H.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:5,694
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Product details
Overview
TPC15AHM3_A/H from Vishay General Semiconductor is a unidirectional 1500 W transient voltage suppressor (TVS) in TO-277A (SMPC) package, designed for clamping voltage transients on power and signal lines. It features a breakdown voltage of 14.3–15.8 V at 1 mA, clamps to ≤21.2 V at 70.8 A peak pulse current, and operates up to +185 °C junction temperature. It is AEC-Q101 qualified and used for protecting MOSFETs and sensor signal lines in automotive power electronics.
For engineers reviewing the TPC15AHM3_A/H datasheet, TPC15AHM3_A/H pinout, TPC15AHM3_A/H application, or TPC15AHM3_A/H equivalent, key selection criteria include unidirectional clamping capability, 1500 W peak pulse power rating, TO-277A package compatibility with automated placement, low-profile height (1.1 mm), and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology optimized for fast response and low incremental surge resistance. Its unidirectional architecture enables forward-biased conduction during overvoltage events while maintaining low leakage (<1 μA at 12.8 V) at stand-off voltage.
The device is rated for non-repetitive 10/1000 μs waveform surges up to 1500 W and supports peak pulse currents up to 70.8 A. Thermal performance is validated to TJ = 185 °C, meeting MSL Level 1 per J-STD-020 and JESD 201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 14.3 V / 15.8 V at 1 mA - defines precise clamping onset threshold under standardized test conditions |
| VWM | 12.8 V - maximum continuous reverse working voltage before significant leakage begins |
| VC @ IPPM | ≤21.2 V at 70.8 A - peak clamped voltage during 10/1000 μs surge, limiting stress on downstream ICs |
| PPPM | 1500 W - peak pulse power handling capacity for transient suppression without failure |
| TJ max. | +185 °C - enables operation in high-temperature automotive engine bay and power module environments |
| Polarity | Unidirectional - provides protection only against positive transients relative to cathode, suitable for DC rail applications |
| Package | TO-277A (SMPC) - surface-mount, low-profile (1.1 mm height), compatible with standard SMT reflow and pick-and-place |
Pinout & Package
TO-277A (SMPC) is a 3-terminal surface-mount package with two cathodes and one anode. The package has a nominal height of 1.1 mm and meets UL 94 V-0 flammability rating. Terminals are matte tin plated and solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 3) | Current entry point during clamping | Connects to protected line (e.g., 12 V rail); conducts when voltage exceeds VBR |
| Cathode 1 (Pin 1) | Common cathode connection | Internally tied to Cathode 2; connects to ground or reference potential |
| Cathode 2 (Pin 2) | Common cathode connection | Internally tied to Cathode 1; ensures low-inductance path to ground for surge current |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier design improves long-term reliability and reduces parameter drift under thermal cycling |
| MSL Level 1 rating | Enables board assembly without moisture-sensitive handling precautions or baking prior to reflow |
| AEC-Q101 qualification | Validated for automotive applications including powertrain, body control, and ADAS sensor interfaces |
| Low profile (1.1 mm) | Reduces mechanical interference in space-constrained modules such as ECU housings and motor drivers |
| Halogen-free & RoHS-compliant | Meets global environmental compliance requirements for automotive and industrial end equipment |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and inductive switching transients in passenger vehicles. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between power input and upstream filter capacitor. Use Value: Limits transient voltage to ≤21.2 V during 70.8 A surges, preventing damage to MCU power supplies and CAN transceivers. | Use Scenario: Shielding analog output lines of pressure or temperature sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Fast-response transient suppressor on 4–20 mA or 0–10 V sensor outputs exposed to EMI and relay switching noise. Use Value: Clamps sub-microsecond transients with <1 ns response time, preserving signal integrity without adding capacitance-induced distortion. |
| MOSFET Gate Driver Protection | Telecom DC Power Input Protection |
Use Scenario: Safeguarding high-side N-channel MOSFET gate drivers in BLDC motor inverters subjected to shoot-through induced spikes. IC Role / Device Role / Timing Role: Low-inductance TVS connected directly across gate-source terminals to clamp Miller-induced overshoot. Use Value: With dual-cathode layout and low incremental surge resistance, it minimizes voltage overshoot beyond VGS(max) during fast switching transitions. | Use Scenario: Front-end protection for 48 V DC telecom power supplies exposed to lightning-induced surges on outdoor plant wiring. IC Role / Device Role / Timing Role: Primary unidirectional surge suppressor on input bus before DC/DC converter stage. Use Value: Handles 1500 W peak pulses per IEEE C62.35 standards, enabling compliance with ITU-T K.20 and Telcordia GR-1089-CORE. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ15A-E3/57T | Lower peak power (400 W), SMA package (higher thermal resistance), VC = 24.4 V at 24.7 A | Not AEC-Q101 qualified; suited for commercial-grade consumer electronics, not automotive | Select when cost sensitivity outweighs automotive qualification and higher surge energy demands |
| TPC15AHM3_A/I | Same electrical specs and TO-277A package; differs only in reel size (6500 pcs vs. 1500 pcs) and tape diameter (13″ vs. 7″) | No functional difference; identical use cases and PCB layout | Choose based on production volume and logistics preference-no design or qualification impact |
Compared with SMAJ15A-E3/57T and TPC15AHM3_A/I, the TPC15AHM3_A/H delivers higher surge robustness (1500 W vs. 400 W) and automotive qualification, while sharing identical electrical behavior and footprint with TPC15AHM3_A/I-making it optimal for high-reliability automotive and industrial deployments requiring verified supply continuity.
Availability
TPC15AHM3_A/H is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom DC input surge suppression requiring stable component supply and long-term lifecycle support.
Supply support for TPC15AHM3_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, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The TPC series belongs to Vishay's PAR® family of high-power TVS diodes, engineered specifically for demanding automotive and industrial environments where AEC-Q101 compliance, high-temperature operation, and repeatable clamping performance are mandatory.
FAQ
What is the breakdown voltage range of the TPC15AHM3_A/H?
The TPC15AHM3_A/H has a specified breakdown voltage (VBR) range of 14.3 V to 15.8 V at 1 mA test current, measured per ANSI/IEEE C62.35 standards. This tight tolerance ensures consistent clamping behavior across production lots and supports reliable overvoltage protection design margins in automotive and industrial systems using the TPC15AHM3_A/H.
Is the TPC15AHM3_A/H suitable for automotive applications?
Yes, the TPC15AHM3_A/H 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 meets JESD 201 Class 2 whisker resistance and MSL Level 1 requirements-key criteria validated for automotive deployment of the TPC15AHM3_A/H.
What does the "HM3_A/H" suffix indicate in TPC15AHM3_A/H?
The "HM3" denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification; "A" is the revision code; "H" specifies the preferred package code for 7-inch tape-and-reel delivery (1500 units per reel). This full suffix confirms material compliance, qualification status, and logistics configuration for the TPC15AHM3_A/H.
How does the dual-cathode configuration of the TPC15AHM3_A/H improve performance?
The dual-cathode (Pins 1 & 2) configuration in the TO-277A package lowers parasitic inductance and enhances current sharing during high-di/dt transients. This design reduces voltage overshoot during clamping and improves energy dissipation consistency-critical for protecting sensitive gate drivers and microcontrollers in systems using the TPC15AHM3_A/H.
Can the TPC15AHM3_A/H replace older TVS diodes like P6KE15A in existing designs?
No direct replacement: P6KE15A is through-hole (DO-15), rated 600 W, and not AEC-Q101 qualified. The TPC15AHM3_A/H is surface-mount (TO-277A), 1500 W, and automotive-qualified. Layout, thermal design, and qualification must be revalidated-TPC15AHM3_A/H offers superior performance but requires PCB redesign and requalification.
TPC15AHM3_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):
- 12.8V
- Voltage - Breakdown (Min):
- 14.3V
- Voltage - Clamping (Max) @ Ipp:
- 21.2V
- Current - Peak Pulse (10/1000µs):
- 70.8A
- 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)
TPC15AHM3_A/H FAQ
1.How can I place an order for TPC15AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC15AHM3_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 TPC15AHM3_A/H reliable?
The price and inventory of TPC15AHM3_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 TPC15AHM3_A/H is usually 5 days.
3.What payment methods are accepted for TPC15AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC15AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC15AHM3_A/H?
TPC15AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC15AHM3_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 TPC15AHM3_A/H?
For technical support, including TPC15AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC15AHM3_A/H requirements.
6.How does Aetrix verify that TPC15AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All TPC15AHM3_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 TPC15AHM3_A/H meets industry standards.
7.What is the process for return or replacement of TPC15AHM3_A/H?
All TPC15AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPC15AHM3_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 TPC15AHM3_A/H part is unused and in its original packaging.
Return procedure for TPC15AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC15AHM3_A/H Tags
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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