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Vishay General Semiconductor - Diodes Division TPC12AHM3_A/H
- Part No.:
- TPC12AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC12AHM3_A/H.pdf
- Description:
- TVS DIODE 10.2VWM 16.7VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:7,842
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Product details
Overview
TPC12AHM3_A/H from Vishay General Semiconductor is a unidirectional 1500 W transient voltage suppressor (TVS) in TO-277A (SMPC) package, designed for high-reliability overvoltage protection of sensitive electronics. It features a 11.4 V minimum breakdown voltage (VBR), 10.2 V stand-off voltage (VWM), 16.7 V maximum clamping voltage (VC) at 89.8 A peak pulse current (IPPM), and operates up to +185 °C junction temperature - ideal for automotive power line and sensor interface protection.
For engineers reviewing the TPC12AHM3_A/H datasheet, TPC12AHM3_A/H pinout, TPC12AHM3_A/H application, or TPC12AHM3_A/H equivalent, key selection criteria include its AEC-Q101 qualification, MSL Level 1 moisture sensitivity, low-profile 1.1 mm height, uni-directional polarity, and compatibility with automated SMT placement on industrial and automotive PCBs.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for fast response (<1 ps) and low incremental surge resistance. Its unidirectional architecture enables robust clamping during positive transients while maintaining low leakage (≤2.0 μA at VWM) across -65 °C to +185 °C operating range.
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 delivers 3.5 V max forward voltage at 100 A - enabling effective protection of MOSFETs, ICs, and signal lines against inductive switching and lightning-induced surges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 11.4 V / 12.6 V - ensures reliable triggering above normal operating voltage without false conduction |
| VWM | 10.2 V - maximum continuous reverse working voltage compatible with 12 V automotive systems |
| VC @ IPPM | 16.7 V - clamps transient energy to safe levels for downstream 16 V-rated components |
| IPPM | 89.8 A - peak surge current handling capacity under standardized 10/1000 µs waveform |
| PPPM | 1500 W - high-energy absorption capability for severe transient events |
| TJ max | +185 °C - supports under-hood automotive environments and high-power industrial applications |
| Polarity | Uni-directional - protects against positive-going transients only; requires correct orientation in circuit |
Pinout & Package
TPC12AHM3_A/H uses the TO-277A (SMPC) surface-mount package: 3-terminal, low-profile (1.1 mm typical height), halogen-free, RoHS-compliant, and AEC-Q101 qualified. Terminals are matte tin plated, solderable per J-STD-002 and JESD 22-B102, with HM3 suffix meeting JESD 201 Class 2 whisker test.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 3) | Current entry point during forward conduction | Connected to protected line; conducts during positive overvoltage events |
| Cathode 1 (Pin 1) | Common cathode connection | Internally tied to Cathode 2; provides low-inductance return path to ground |
| Cathode 2 (Pin 2) | Common cathode connection | Electrically identical to Pin 1; dual-cathode layout improves thermal dissipation and surge current sharing |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier design enhances long-term reliability under thermal cycling and humidity stress |
| MSL Level 1 rating | Enables unlimited floor life and reflow compatibility without dry-pack requirements |
| AEC-Q101 qualification | Validated for automotive-grade deployment including engine control, body electronics, and ADAS subsystems |
| Low profile (1.1 mm) | Reduces board space and enables use in ultra-thin modules and compact sensor housings |
| Very fast response time | Sub-nanosecond clamping prevents voltage overshoot from damaging sensitive CMOS inputs |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V supply rails in engine control units (ECUs) and infotainment systems from load dump and alternator ripple. IC Role / Device Role / Timing Role: Transient voltage suppressor placed between battery input and DC-DC converter input stage. Use Value: Clamps 16.7 V at 89.8 A to prevent damage to downstream regulators and microcontrollers during ISO 7637-2 Pulse 5a events. |
Use Scenario: Safeguarding analog outputs and digital communication lines (e.g., LIN, CAN PHY power domains) in pressure/temperature sensors. IC Role / Device Role / Timing Role: Uni-directional TVS connected between sensor VDD and ground to absorb ESD and switching noise. Use Value: Withstands 1500 W surges while maintaining ≤2.0 μA leakage at 10.2 V, preserving sensor accuracy and low-power sleep modes. |
| Consumer Electronics Power Input | Telecom Equipment Surge Protection |
|
Use Scenario: Input-stage protection for USB-C PD adapters and portable power banks exposed to hot-plug and cable discharge events. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 5–20 V input rail before buck controller and battery management IC. Use Value: 185 °C TJ rating allows operation in thermally constrained enclosures; TO-277A footprint supports high-density layout. |
Use Scenario: Front-end protection for PoE-powered devices (e.g., IP cameras, wireless access points) against lightning-induced surges on Ethernet lines. IC Role / Device Role / Timing Role: Paired with common-mode chokes and secondary TVS arrays to handle differential-mode transients on DC bias lines. Use Value: 1500 W peak power rating meets IEC 61000-4-5 Level 4 requirements when used with appropriate series impedance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ12A | Lower PPPM (400 W), SMA package (higher thermal resistance), VC = 19.9 V at 32.4 A | Suitable for lower-energy consumer applications; not AEC-Q101 qualified | Select when cost sensitivity outweighs automotive qualification and surge energy requirements |
| TPC12AHE3_A/H | Same electrical specs but HE3 suffix indicates halogen-free, RoHS-compliant, and AEC-Q101 qualified variant in same TO-277A package | Identical functional role; differs only in material compliance documentation and traceability | Prefer for programs requiring full PPAP documentation and extended material declaration compliance |
Compared with SMAJ12A and TPC12AHE3_A/H, the TPC12AHM3_A/H offers superior 1500 W surge handling and automotive-grade reliability in the same compact TO-277A footprint - making it optimal for high-stress 12 V system protection where clamping voltage margin and thermal endurance are critical.
Availability
TPC12AHM3_A/H is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interfaces, and telecom equipment requiring stable component supply with AEC-Q101 qualification and long-lifecycle support.
Supply support for TPC12AHM3_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 high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The TPC12AHM3_A/H belongs to Vishay's PAR® series of surface-mount TVS diodes, engineered specifically for high-energy transient suppression in harsh environments where AEC-Q101 compliance and 185 °C operation are mandatory.
FAQ
What is the clamping voltage of TPC12AHM3_A/H at its rated peak pulse current?
The TPC12AHM3_A/H has a maximum clamping voltage (VC) of 16.7 V when subjected to its rated peak pulse current of 89.8 A under the standard 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and ensures downstream components rated for 16 V or higher remain within safe operating limits during transient events. The low VC relative to VBR reflects efficient silicon design and minimal incremental surge resistance in the TPC12AHM3_A/H.
Is TPC12AHM3_A/H qualified for automotive applications?
Yes, the TPC12AHM3_A/H is AEC-Q101 qualified and rated for operation up to +185 °C junction temperature - meeting stringent reliability requirements for under-hood and chassis-mounted automotive electronics. Its TO-277A package is also MSL Level 1 compliant and passes JESD 201 Class 2 whisker testing. These qualifications are documented in Vishay's official specification document 89056 and apply explicitly to the TPC12AHM3_A/H part number.
What does the "HM3" suffix mean in TPC12AHM3_A/H?
The "HM3" suffix in TPC12AHM3_A/H denotes a halogen-free, RoHS-compliant, and AEC-Q101 qualified version in the TO-277A (SMPC) package, where "H" is the preferred package code and "M3" indicates the revision level. The "_A/H" ending specifies packaging: 7-inch tape-and-reel with 1500 units per reel. This coding aligns with Vishay's ordering nomenclature in document 89056 and confirms full material compliance and automotive qualification for the TPC12AHM3_A/H.
Can TPC12AHM3_A/H be used in bidirectional protection circuits?
No, the TPC12AHM3_A/H is strictly unidirectional and must be oriented with anode toward the protected line and cathodes to ground. It does not provide protection against negative-going transients. For bidirectional applications, a separate device such as the SMBJ12CA or a back-to-back configuration would be required. The unidirectional nature of the TPC12AHM3_A/H is explicitly stated in its datasheet features and electrical characteristics table.
What is the maximum reverse leakage current of TPC12AHM3_A/H at room temperature?
The TPC12AHM3_A/H exhibits a maximum reverse leakage current (IR) of 2.0 µA at its stand-off voltage (VWM = 10.2 V) and ambient temperature (TA = 25 °C). At elevated junction temperature (TJ = 150 °C), leakage increases to a maximum of 10 µA - still well within acceptable limits for low-power sensor and microcontroller supply rail protection. This low leakage preserves system efficiency and avoids false triggering in precision analog circuits using the TPC12AHM3_A/H.
TPC12AHM3_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):
- 10.2V
- Voltage - Breakdown (Min):
- 11.4V
- Voltage - Clamping (Max) @ Ipp:
- 16.7V
- Current - Peak Pulse (10/1000µs):
- 89.8A
- 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)
TPC12AHM3_A/H FAQ
1.How can I place an order for TPC12AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC12AHM3_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 TPC12AHM3_A/H reliable?
The price and inventory of TPC12AHM3_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 TPC12AHM3_A/H is usually 5 days.
3.What payment methods are accepted for TPC12AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC12AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC12AHM3_A/H?
TPC12AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC12AHM3_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 TPC12AHM3_A/H?
For technical support, including TPC12AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC12AHM3_A/H requirements.
6.How does Aetrix verify that TPC12AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All TPC12AHM3_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 TPC12AHM3_A/H meets industry standards.
7.What is the process for return or replacement of TPC12AHM3_A/H?
All TPC12AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPC12AHM3_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 TPC12AHM3_A/H part is unused and in its original packaging.
Return procedure for TPC12AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC12AHM3_A/H Tags
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