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Vishay General Semiconductor - Diodes Division TPC15CAHM3/I
- Part No.:
- TPC15CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC15CAHM3/I.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:8,119
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Product details
Overview
TPC15CAHM3/I from Vishay General Semiconductor is a bidirectional 1500 W transient voltage suppressor (TVS) in SMPC (TO-277A) package, designed for high-reliability automotive and industrial electronics protection. It features a 14.3–15.8 V breakdown voltage (VBR), 12.8 V stand-off voltage (VWM), 21.2 V clamping voltage (VC) at 70.8 A peak pulse current, and AEC-Q101 qualification for under-hood applications.
For engineers reviewing the TPC15CAHM3/I datasheet, TPC15CAHM3/I pinout, TPC15CAHM3/I application, or TPC15CAHM3/I equivalent, key selection criteria include its 1500 W peak pulse power rating, bidirectional polarity, 185 °C maximum junction temperature, low-profile 1.1 mm height, and halogen-free, RoHS-compliant construction with JESD201 Class 2 whisker resistance.
Technical Context
This TVS diode operates as a clamping device across signal or power lines to limit transient overvoltages induced by inductive switching or ESD events. Its PAR® junction passivation enables stable performance up to 185 °C, supporting automotive-grade thermal cycling and long-term reliability in harsh environments.
The device uses a symmetric bidirectional structure with no polarity marking, delivering identical clamping behavior in both directions. It responds within nanoseconds to transients defined by the 10/1000 μs waveform standard per ANSI/IEEE C62.35, with leakage current ≤1.0 μA at 12.8 V and junction capacitance optimized for signal-line protection without signal integrity degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 14.3 V / 15.8 V - ensures reliable triggering above normal operating voltage while avoiding false trips during ripple or tolerance drift |
| VWM | 12.8 V - maximum continuous reverse voltage before leakage exceeds 1.0 μA, compatible with 12 V automotive systems |
| VC @ IPPM | 21.2 V - clamps 10/1000 μs surges up to 70.8 A, limiting downstream IC stress to safe levels |
| PPPM | 1500 W - handles high-energy transients common in motor drivers, solenoid controls, and battery line protection |
| TJ max. | 185 °C - supports operation in engine compartment and powertrain modules without derating |
| Package | SMPC (TO-277A) - surface-mount, low-profile (1.1 mm height), AEC-Q101 qualified, MSL Level 1 |
Pinout & Package
TPC15CAHM3/I is housed in a 2-terminal SMPC (TO-277A) package with matte tin-plated leads solderable per J-STD-002 and JESD22-B102. Polarity is unmarked due to bidirectional symmetry.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal serves as input/output for transient suppression; no polarity dependency in circuit layout |
| Terminal 2 | Anode/Cathode (bidirectional) | Paired with Terminal 1 to form symmetrical clamping path; enables placement flexibility on PCB |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation (PAR® design) | Enables stable VBR and low leakage over 1000+ thermal cycles at 150 °C |
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, humidity bias, and mechanical shock per test plan |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without preconditioning or dry-pack requirements |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and IPC-1752A material declaration standards |
| JESD201 Class 2 whisker resistance | Prevents tin whisker growth under high humidity and bias, critical for long-life automotive modules |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load-dump and alternator surge transients. IC Role / Device Role / Timing Role: Clamping TVS placed across power rail and ground to absorb >1500 W pulses without failure. Use Value: Prevents latch-up or permanent damage to microcontrollers and CAN transceivers during ISO 7637-2 Pulse 5a events. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Bidirectional shunt device connected between signal line and ground to clamp ±15 kV HBM ESD. Use Value: Maintains signal fidelity below 21.2 V clamping threshold while adding <1.0 μA leakage at 12.8 V. |
| Consumer Appliance Motor Control | Telecom DC Power Input Protection |
Use Scenario: Suppressing inductive kickback from brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Fast-response TVS mounted across relay contacts or MOSFET drain-source to limit flyback voltage. Use Value: Enables use of lower-voltage-rated MOSFETs by clamping spikes to 21.2 V, reducing BOM cost and board space. | Use Scenario: Safeguarding 48 V telecom power supplies against lightning-induced surges on primary input lines. IC Role / Device Role / Timing Role: Primary-stage transient suppressor placed upstream of DC/DC converters and PMICs. Use Value: Withstands 70.8 A peak pulse current and maintains 12.8 V stand-off, ensuring uninterrupted operation during GR-1089-CORE Level 3 surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ15CA | Lower PPPM (400 W), SMA package (higher thermal resistance), VC = 24.4 V at 24.4 A | Not AEC-Q101 qualified; limited to consumer/industrial use below 150 °C | Choose for cost-sensitive non-automotive designs where 1500 W surge immunity is not required |
| TPC15CAHM3/H | Identical electrical specs; differs only in tape-and-reel packaging (7" vs. 13" reel, 1500 vs. 6500 units) | No functional or application difference; same PCB footprint and thermal performance | Choose for smaller batch prototyping or when 7" reel compatibility is required in SMT line |
Compared with SMAJ15CA and TPC15CAHM3/H, the TPC15CAHM3/I delivers full 1500 W surge handling and AEC-Q101 compliance in a low-profile TO-277A package, making it uniquely suitable for automotive powertrain and ADAS modules where thermal robustness and reliability are non-negotiable.
Availability
TPC15CAHM3/I is available at Aetrix Electronics and suitable for automotive power line protection, industrial sensor interface protection, consumer appliance motor control, and telecom DC power input protection requiring stable component supply and long-term lifecycle support.
Supply support for TPC15CAHM3/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, TVS devices, and optoelectronics with emphasis on reliability and automotive qualification.
The TPC15CAHM3/I belongs to Vishay's eSMP® PAR® TVS family, engineered specifically for high-energy transient suppression in space-constrained, thermally demanding automotive and industrial environments.
FAQ
What is the maximum clamping voltage of the TPC15CAHM3/I under a 10/1000 μs surge?
The TPC15CAHM3/I has a maximum clamping voltage (VC) of 21.2 V when subjected to its rated peak pulse current of 70.8 A using the standardized 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees predictable overvoltage limiting for downstream components. The TPC15CAHM3/I maintains this clamping performance across its full operating temperature range up to 185 °C junction temperature.
Is the TPC15CAHM3/I suitable for automotive under-hood applications?
Yes, the TPC15CAHM3/I is AEC-Q101 qualified and rated for a maximum junction temperature of 185 °C, making it suitable for under-hood automotive applications such as engine control units, transmission modules, and body electronics. Its halogen-free, RoHS-compliant construction and JESD201 Class 2 whisker resistance further ensure long-term reliability in high-humidity, high-vibration environments typical of automotive powertrain systems. The TPC15CAHM3/I meets all stress-test requirements defined in the AEC-Q101 standard.
What does the "HM3" suffix indicate in TPC15CAHM3/I?
The "HM3" suffix in TPC15CAHM3/I denotes Vishay's automotive-grade variant: "H" indicates halogen-free and RoHS-compliant molding compound, "M3" specifies AEC-Q101 qualification and JESD201 Class 2 whisker resistance. The final "I" identifies the 13-inch tape-and-reel packaging format containing 6500 units. All TPC15CAHM3/I units share identical electrical characteristics and thermal ratings with other HM3-suffixed variants like TPC15CAHM3/H - only packaging differs.
How does the SMPC (TO-277A) package of the TPC15CAHM3/I compare to SMA or SMC packages?
The SMPC (TO-277A) package used in the TPC15CAHM3/I offers a 1.1 mm typical height - significantly lower than SMA (2.3 mm) and SMC (2.6 mm) - enabling ultra-thin designs in tight spaces like ADAS camera modules or compact ECUs. Its copper-clip construction provides lower thermal resistance than leadframe-based packages, supporting higher power dissipation. Unlike SMA/SMC, SMPC is qualified to MSL Level 1 and requires no moisture sensitivity handling, simplifying manufacturing for the TPC15CAHM3/I.
Can the TPC15CAHM3/I be used in bidirectional signal line protection?
Yes, the TPC15CAHM3/I is inherently bidirectional with symmetrical VBR and VC characteristics, making it ideal for protecting AC-coupled or differential signal lines such as CAN, LIN, or sensor analog outputs. Its low leakage (<1.0 μA at 12.8 V) avoids loading sensitive inputs, and its fast response time ensures clamping before transient energy damages downstream circuitry. Because the TPC15CAHM3/I has no polarity marking, orientation is irrelevant during placement - simplifying assembly and reducing error risk.
TPC15CAHM3/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:
- -
- Bidirectional Channels:
- 1
- 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 ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-277A (SMPC)
TPC15CAHM3/I FAQ
1.How can I place an order for TPC15CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC15CAHM3/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 TPC15CAHM3/I reliable?
The price and inventory of TPC15CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPC15CAHM3/I is usually 5 days.
3.What payment methods are accepted for TPC15CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC15CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC15CAHM3/I?
TPC15CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC15CAHM3/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 TPC15CAHM3/I?
For technical support, including TPC15CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC15CAHM3/I requirements.
6.How does Aetrix verify that TPC15CAHM3/I is sourced from the original manufacturer or authorized distributors?
All TPC15CAHM3/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 TPC15CAHM3/I meets industry standards.
7.What is the process for return or replacement of TPC15CAHM3/I?
All TPC15CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with TPC15CAHM3/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 TPC15CAHM3/I part is unused and in its original packaging.
Return procedure for TPC15CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC15CAHM3/I Tags
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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