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Vishay General Semiconductor - Diodes Division TPC15AHM3/86A
- Part No.:
- TPC15AHM3/86A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC15AHM3/86A.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:7,985
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Product details
Overview
TPC15AHM3/86A 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 stand-off 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 TPC15AHM3/86A datasheet, TPC15AHM3/86A pinout, TPC15AHM3/86A application, or TPC15AHM3/86A equivalent, key selection criteria include unidirectional clamping performance, AEC-Q101 qualification, low-profile 1.1 mm height, MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on power rails and sensor signal lines.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to achieve low incremental surge resistance and fast response time under 10/1000 µs transients. Its junction passivation enables stable operation at TJ = 185 °C, supporting under-hood automotive environments and high-temperature industrial control systems.
The device is rated for 1500 W peak pulse power (PPPM), 70.8 A peak pulse current (IPPM) at 10/1000 µs, and exhibits 1.0 µA maximum reverse leakage at VWM = 12.8 V and 10 µA at TJ = 150 °C - critical for low-power sensor interface protection where standby current integrity matters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (Nom) | 15.0 V - ensures reliable triggering above normal operating voltage of 12 V automotive systems |
| VWM | 12.8 V - provides safe margin below VBR while allowing full system voltage swing without leakage-induced errors |
| VC @ IPPM | 21.2 V - limits protected circuit voltage during 70.8 A surge, safeguarding 24 V-rated ICs and MOSFETs |
| PPPM | 1500 W - sustains high-energy transients from inductive load switching (e.g., solenoids, relays) |
| TJ max | +185 °C - supports AEC-Q101-compliant operation in engine control units and powertrain modules |
| Package | SMPC (TO-277A) - 3-pin surface-mount package with cathode-anode-cathode terminal arrangement and 1.1 mm profile |
| MSL Level | Level 1 per J-STD-020 - eliminates bake requirements prior to reflow, enabling direct use in standard SMT lines |
Pinout & Package
TPC15AHM3/86A is housed in the SMPC (TO-277A) package - a compact, low-profile, 3-terminal surface-mount case with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. The package meets UL 94 V-0 flammability rating and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Reverse-biased terminal | Connected to protected line; conducts during overvoltage to shunt energy to ground |
| 2 (Anode) | Reference/ground terminal | Common return path for clamping current; must be low-inductance connection to system ground |
| 3 (Cathode) | Reverse-biased terminal | Electrically tied to Pin 1 internally; enables dual-cathode layout for symmetric PCB routing and thermal symmetry |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan |
| Junction passivation | Prevents surface degradation under high humidity and thermal stress, ensuring long-term clamping stability |
| Low profile (1.1 mm typical height) | Enables use in space-constrained modules such as ADAS camera ECUs and battery management sensors |
| Very fast response time | Sub-nanosecond turn-on ensures protection before sensitive downstream components experience overstress |
| Halogen-free & RoHS-compliant | Meets global environmental compliance mandates without compromising surge robustness or thermal performance |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V supply lines in engine control units against load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between battery rail and DC-DC input stage. Use Value: Clamps surges up to 21.2 V at 70.8 A, preventing damage to LDOs and microcontrollers while maintaining AEC-Q101 compliance. | Use Scenario: Safeguarding analog output lines of pressure and temperature sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Signal-line TVS connected between sensor output and ADC input to suppress ESD and cable discharge events. Use Value: 1.0 µA leakage at 12.8 V preserves measurement accuracy; 185 °C rating ensures operation near hot motor drives. |
| Telecom Power Supply Input | Consumer Appliance Motor Driver Protection |
Use Scenario: Guarding primary-side inputs of telecom AC/DC adapters against lightning-induced surges on AC mains. IC Role / Device Role / Timing Role: Front-end unidirectional TVS absorbing differential-mode transients before bridge rectifier. Use Value: 1500 W PPPM handles 10/1000 µs surges per IEC 61000-4-5; TO-277A package allows high-current trace routing. | Use Scenario: Shielding gate drivers and half-bridge MOSFETs in smart home appliance inverters from inductive kickback. IC Role / Device Role / Timing Role: Clamp diode across motor winding or across high-side/low-side switch nodes. Use Value: Dual-cathode configuration supports symmetrical placement; 21.2 V clamping prevents MOSFET VDS overstress during commutation. |
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, higher VC (24.4 V), not AEC-Q101 qualified | Suitable for cost-sensitive consumer electronics but lacks automotive temperature and reliability validation | Select when budget constraints outweigh automotive qualification needs and surge energy is ≤400 W |
| TPC15AHM3 | Same electrical specs and package; differs only in revision code ("86A" vs "A") - identical form, fit, and function | No functional difference; "86A" denotes updated manufacturing lot with enhanced process control per Vishay internal revision tracking | Prefer TPC15AHM3/86A for new designs requiring latest production revision and documented traceability |
Compared with SMAJ15A and TPC15AHM3, the TPC15AHM3/86A delivers 275 % higher surge power handling, automotive-grade reliability, and lower clamping voltage - making it optimal for safety-critical 12 V systems where transient energy exceeds 400 W and qualification evidence is mandatory.
Availability
TPC15AHM3/86A is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface protection, and telecom power supply input applications requiring stable component supply, AEC-Q101 compliance, and high-energy transient suppression.
Supply support for TPC15AHM3/86A 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, efficiency, and application-specific optimization.
The TPC series was developed specifically for high-power, high-temperature transient suppression in automotive and industrial environments - prioritizing AEC-Q101 qualification, low-profile packaging, and consistent clamping performance across extended temperature ranges.
FAQ
What is the clamping voltage of the TPC15AHM3/86A at its rated peak pulse current?
The TPC15AHM3/86A 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 JEDEC-standard test conditions and ensures downstream components remain within safe operating voltage limits during surge events. The TPC15AHM3/86A maintains this clamping performance across its full operating temperature range.
Is the TPC15AHM3/86A qualified for automotive applications?
Yes, the TPC15AHM3/86A is AEC-Q101 qualified and rated for junction temperatures up to +185 °C, making it suitable for under-hood and powertrain applications. It meets all required stress tests including temperature cycling, high-temperature reverse bias, and ESD per the AEC-Q101 standard. The TPC15AHM3/86A is explicitly designated as automotive grade in Vishay's official documentation.
What does the "HM3/86A" suffix indicate in TPC15AHM3/86A?
The "HM3" denotes the halogen-free, RoHS-compliant SMPC (TO-277A) package with matte tin plating and JESD 201 Class 2 whisker resistance. The "86A" is Vishay's internal revision code indicating a specific manufacturing lot and process iteration - distinct from earlier "A" revisions but electrically and mechanically identical to TPC15AHM3. The TPC15AHM3/86A maintains full form-fit-function compatibility.
Can the TPC15AHM3/86A be used in bidirectional configurations?
No, the TPC15AHM3/86A is strictly unidirectional and must be oriented with cathodes toward the protected line and anode to ground. It does not provide reverse-polarity protection or symmetrical clamping. For bidirectional transient suppression, a separate device such as the SMBJ15CA or a dedicated bidirectional TVS array is required. The TPC15AHM3/86A datasheet explicitly states "Unidirection only" as a core feature.
What is the maximum reverse leakage current of the TPC15AHM3/86A at 125 °C?
At TJ = 150 °C and VWM = 12.8 V, the TPC15AHM3/86A exhibits a maximum reverse leakage current (ID) of 10 µA. At 125 °C, leakage is significantly lower - typically <1 µA - as confirmed by the device's specified 1.0 µA maximum at 25 °C and the positive temperature coefficient of leakage in silicon TVS diodes. This low leakage preserves signal integrity in precision sensor interfaces.
TPC15AHM3/86A 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)
TPC15AHM3/86A FAQ
1.How can I place an order for TPC15AHM3/86A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC15AHM3/86A 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 TPC15AHM3/86A reliable?
The price and inventory of TPC15AHM3/86A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPC15AHM3/86A is usually 5 days.
3.What payment methods are accepted for TPC15AHM3/86A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC15AHM3/86A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC15AHM3/86A?
TPC15AHM3/86A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC15AHM3/86A 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 TPC15AHM3/86A?
For technical support, including TPC15AHM3/86A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC15AHM3/86A requirements.
6.How does Aetrix verify that TPC15AHM3/86A is sourced from the original manufacturer or authorized distributors?
All TPC15AHM3/86A 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 TPC15AHM3/86A meets industry standards.
7.What is the process for return or replacement of TPC15AHM3/86A?
All TPC15AHM3/86A units undergo pre-shipment inspection (PSI). If there is an issue with TPC15AHM3/86A, 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 TPC15AHM3/86A part is unused and in its original packaging.
Return procedure for TPC15AHM3/86A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC15AHM3/86A Tags
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