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Vishay General Semiconductor - Diodes Division TPC15AHM3/87A
- Part No.:
- TPC15AHM3/87A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC15AHM3/87A.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:3,757
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Product details
Overview
TPC15AHM3/87A 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 surge protection. It features a 15.0 V nominal breakdown voltage (VBR), 12.8 V standoff voltage (VWM), clamping voltage of 21.2 V at 70.8 A peak pulse current, and operates up to +185 °C junction temperature.
For engineers reviewing the TPC15AHM3/87A datasheet, TPC15AHM3/87A pinout, TPC15AHM3/87A application, or TPC15AHM3/87A equivalent, key selection criteria include unidirectional clamping performance under 10/1000 µs transients, AEC-Q101 qualification, low-profile 1.1 mm height, and compatibility with automated SMT placement on automotive ECUs and power electronics control boards.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology optimized for fast response (<1 ps) and low incremental surge resistance. Its junction passivation enables stable operation at TJ = 185 °C, supporting under-hood automotive environments where thermal derating must be minimized.
The device is rated for non-repetitive 1500 W peak pulse power per 10/1000 µs waveform, with clamping behavior characterized at IPPM = 70.8 A. It meets MSL Level 1 per J-STD-020 and passes JESD201 Class 2 whisker testing due to matte tin-plated leads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (nom) | 15.0 V - Ensures reliable triggering above system operating voltage while avoiding false clamping during normal transients. |
| VWM | 12.8 V - Maximum continuous reverse voltage before leakage exceeds 1 µA; compatible with 12 V automotive supply rails. |
| VC @ IPPM | 21.2 V - Clamping voltage at 70.8 A peak pulse; limits downstream IC stress during ISO 7637-2 Load Dump or inductive switching events. |
| PPPM | 1500 W - Peak pulse power handling per 10/1000 µs waveform; supports high-energy surge immunity without failure. |
| TJ max | +185 °C - Enables use in high-temperature locations such as engine control modules without thermal derating penalties. |
| Package | SMPC (TO-277A) - 3-pin surface-mount package with cathode band marking; footprint optimized for high-current PCB trace routing. |
| AEC-Q101 | Qualified - Meets automotive-grade reliability requirements including HTOL, TC, and ESD testing per AEC standard. |
Pinout & Package
TPC15AHM3/87A is housed in the SMPC (TO-277A) package - a 3-terminal surface-mount case with cathode band marking on terminal 1. The package has a typical height of 1.1 mm and conforms to JEDEC TO-277A mechanical dimensions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Anode-side reference node for unidirectional clamping | Connected to protected line; forms cathode connection for forward-biased surge path during overvoltage. |
| 2 (Cathode) | Second cathode terminal | Parallel cathode path to reduce dynamic impedance and improve current sharing during high-surge events. |
| 3 (Anode) | Common ground reference | Connected to system ground; completes clamping loop and provides low-inductance return path for surge current. |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Enables stable VBR drift < ±5 % over 1000 hrs HTOL at 150 °C, critical for long-life automotive modules. |
| Low profile (1.1 mm height) | Allows integration into space-constrained modules like battery management systems and ADAS sensor housings. |
| MSL Level 1 rating | Permits unlimited floor life and reflow without baking, simplifying SMT manufacturing for high-volume automotive production. |
| Matte tin plating | Ensures solderability per J-STD-002 and whisker resistance per JESD201 Class 2, eliminating field failure risk from tin whiskers. |
| Unidirectional configuration | Provides precise clamping only on positive transients, preserving signal integrity on DC-biased lines like CAN or LIN bus interfaces. |
Applications
| Automotive Engine Control Unit (ECU) | Industrial Motor Drive Power Stage |
|---|---|
Use Scenario: Protection against load dump transients (ISO 7637-2 Pulse 5a) on 12 V supply inputs of engine control modules. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed at main power entry point to divert surge energy to chassis ground. Use Value: Limits voltage seen by MCU and analog front-end ICs to ≤21.2 V during 1500 W surges, preventing latch-up or gate oxide damage. | Use Scenario: Suppressing inductive kickback from IGBT gate drivers and relay coils in variable-frequency drives. IC Role / Device Role / Timing Role: Fast-response transient suppressor across DC bus rails and gate drive supply lines. Use Value: Clamps 70.8 A pulses within nanoseconds, reducing dv/dt stress on gate drivers and extending MOSFET/IGBT lifetime. |
| Automotive Body Control Module (BCM) | Telecom Power Supply Input |
Use Scenario: Safeguarding LIN bus transceivers and window lift motor drivers from ESD and switching noise in body electronics. IC Role / Device Role / Timing Role: Localized TVS on each protected line, leveraging dual-cathode layout for shared ground return. Use Value: Maintains signal integrity with <1 µA leakage at 12.8 V, ensuring no impact on LIN bus biasing or wake-up sensitivity. | Use Scenario: Protecting AC/DC and DC/DC converter inputs from lightning-induced surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: Primary-level surge suppression on 24–48 V telecom power inputs before upstream filtering. Use Value: Handles 1500 W pulses without degradation, enabling compliance with GR-1089-CORE Level 3 surge immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ15A | Lower PPPM (400 W), SMA package, single-cathode, lower IPPM (32.4 A) | Not AEC-Q101 qualified; limited to commercial/industrial use | Select when cost-sensitive, non-automotive designs require basic 15 V clamping with smaller footprint. |
| TPC15AHM3 | Same electrical specs and AEC-Q101 qualification; differs only in revision code (no '87A' suffix) | No functional difference; identical mechanical and thermal performance | Choose for legacy BOM continuity where '87A' revision is not mandated by design change notice. |
Compared with SMAJ15A and TPC15AHM3, the TPC15AHM3/87A delivers 275 % higher surge power handling and dual-cathode architecture for lower dynamic impedance-critical for automotive-grade robustness where sustained 1500 W clamping and thermal stability up to +185 °C are required.
Availability
TPC15AHM3/87A is available at Aetrix Electronics and suitable for automotive engine control units, industrial motor drives, and telecom power supplies requiring stable component supply with full AEC-Q101 traceability and extended temperature support.
Supply support for TPC15AHM3/87A 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 automotive, industrial, and computing markets.
The TPC15AHM3/87A belongs to Vishay's PAR® series of surface-mount transient voltage suppressors, engineered specifically for high-power, high-temperature automotive surge protection with AEC-Q101 qualification and JEDEC-compliant packaging.
FAQ
What is the clamping voltage of TPC15AHM3/87A at its rated peak pulse current?
The TPC15AHM3/87A has a maximum clamping voltage (VC) of 21.2 V when subjected to its rated peak pulse current (IPPM) of 70.8 A under a 10/1000 µs waveform. This value is measured per Figure 1 in Vishay document 89056 and ensures downstream components remain within safe operating voltage limits during surge events. The TPC15AHM3/87A maintains this clamping performance across its full operating temperature range.
Is TPC15AHM3/87A qualified for automotive applications?
Yes, the TPC15AHM3/87A is AEC-Q101 qualified and rated for operation up to +185 °C junction temperature, making it suitable for under-hood automotive applications including engine control units and body control modules. It also meets MSL Level 1 per J-STD-020 and passes JESD201 Class 2 whisker testing - all confirmed in Vishay's official qualification report for the TPC15AHM3/87A family.
What does the '87A' suffix indicate in TPC15AHM3/87A?
The '87A' suffix in TPC15AHM3/87A denotes the revision code for the HM3 package variant, indicating a specific manufacturing lot and process revision compliant with halogen-free, RoHS, and AEC-Q101 requirements. Per Vishay's ordering information, '87A' corresponds to the same electrical and mechanical specifications as TPC15AHM3 but with traceable revision control for automotive BOM compliance. The TPC15AHM3/87A shares full form-fit-function compatibility with base TPC15AHM3.
How does the dual-cathode configuration of TPC15AHM3/87A improve surge performance?
The dual-cathode configuration (Terminals 1 and 2 both cathodes) in the TPC15AHM3/87A reduces effective dynamic impedance during high-current transients, improving current sharing and lowering clamping voltage under real-world surge conditions. This architecture is validated in Vishay's characterization data showing consistent VC = 21.2 V at 70.8 A - a key advantage over single-cathode alternatives like SMAJ15A. The TPC15AHM3/87A leverages this for enhanced reliability in automotive power rail protection.
What is the standoff voltage (VWM) of TPC15AHM3/87A and why is it important?
The TPC15AHM3/87A has a maximum standoff voltage (VWM) of 12.8 V, meaning it remains in high-impedance state with <1 µA leakage up to this DC or RMS voltage. This allows safe integration on 12 V automotive systems without false triggering during normal operation or slow-rising transients. The VWM margin (12.8 V vs. 15.0 V VBR) ensures robust noise immunity while maintaining fast response to damaging overvoltages - a core specification verified in Vishay's electrical characteristics table for TPC15AHM3/87A.
TPC15AHM3/87A 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):
- 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)
TPC15AHM3/87A FAQ
1.How can I place an order for TPC15AHM3/87A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC15AHM3/87A 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 TPC15AHM3/87A reliable?
The price and inventory of TPC15AHM3/87A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPC15AHM3/87A is usually 5 days.
3.What payment methods are accepted for TPC15AHM3/87A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC15AHM3/87A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC15AHM3/87A?
TPC15AHM3/87A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC15AHM3/87A 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 TPC15AHM3/87A?
For technical support, including TPC15AHM3/87A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC15AHM3/87A requirements.
6.How does Aetrix verify that TPC15AHM3/87A is sourced from the original manufacturer or authorized distributors?
All TPC15AHM3/87A 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 TPC15AHM3/87A meets industry standards.
7.What is the process for return or replacement of TPC15AHM3/87A?
All TPC15AHM3/87A units undergo pre-shipment inspection (PSI). If there is an issue with TPC15AHM3/87A, 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 TPC15AHM3/87A part is unused and in its original packaging.
Return procedure for TPC15AHM3/87A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC15AHM3/87A Tags
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