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Vishay General Semiconductor - Diodes Division TPC11AHM3_A/I
- Part No.:
- TPC11AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC11AHM3_A/I.pdf
- Description:
- TVS DIODE 9.4VWM 15.6VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:8,049
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Product details
Overview
TPC11AHM3_A/I from Vishay General Semiconductor is a unidirectional 1500 W transient voltage suppressor (TVS) in TO-277A (SMPC) package, designed for high-reliability automotive and industrial electronics protection. It features a 10.5 V clamping voltage at 96.2 A peak pulse current, 10.5–11.6 V breakdown voltage range at 1 mA test current, and 9.40 V stand-off voltage - optimized for safeguarding MOSFETs, ICs, and sensor signal lines against inductive switching transients.
For engineers reviewing the TPC11AHM3_A/I datasheet, TPC11AHM3_A/I pinout, TPC11AHM3_A/I application, or TPC11AHM3_A/I equivalent, this device offers AEC-Q101 qualification, 185 °C junction temperature capability, low-profile 1.1 mm height, MSL Level 1 moisture sensitivity, and halogen-free RoHS-compliant construction - critical for automotive-grade ESD/surge protection design-in.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology to deliver fast response time and low incremental surge resistance. Its unidirectional architecture enables integration into DC power rails and signal paths where reverse conduction must be blocked, with clamping performance validated under 10/1000 µs waveform per IEC 61000-4-5.
The TO-277A (SMPC) package supports automated placement and provides thermal robustness via copper lead frame and matte tin-plated terminals compliant with J-STD-002 and JESD 22-B102. Junction temperature derating follows Fig. 2 of the datasheet, maintaining 1500 W peak pulse power up to 25 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 µs) | 1500 W - sustains high-energy surges without failure in automotive load-dump or ISO 7637-2 transient events |
| Clamping Voltage VC at IPPM | 15.6 V - limits downstream voltage stress on 12 V automotive electronics during 96.2 A surge |
| Breakdown Voltage VBR | 10.5–11.6 V at 1 mA - ensures reliable turn-on before damage threshold of protected ICs |
| Stand-off Voltage VWM | 9.40 V - allows normal operation below clamping threshold with <5 µA leakage at 25 °C |
| Junction Temperature Range | –65 °C to +185 °C - supports under-hood automotive deployment and industrial high-temp environments |
| Package | TO-277A (SMPC) - surface-mount, low-profile (1.1 mm), AEC-Q101 qualified, MSL Level 1 |
| Surge Current IFSM (8.3 ms) | 200 A - withstands repetitive inrush or fault currents in power supply input stages |
Pinout & Package
TO-277A (SMPC) is a 3-terminal surface-mount package with dual cathodes and shared anode. The package measures 4.80 × 3.70 × 1.10 mm (L × W × H) and uses a copper lead frame with matte tin plating for solderability and whisker resistance (JESD 201 Class 2).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 (Cathode) | Anode-referenced cathode | Primary current path for transient clamping; connected to protected line |
| Terminal 2 (Cathode) | Parallel cathode | Shares surge current with Terminal 1 to reduce effective dynamic resistance |
| Terminal A (Anode) | Common anode | Connected to ground or low-impedance return path; completes clamping loop |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, humidity bias, and mechanical shock testing |
| 185 °C maximum junction temperature | Enables operation in engine control units and powertrain modules without thermal derating penalties |
| Very low profile (1.1 mm height) | Reduces board clearance issues in space-constrained ADAS and infotainment modules |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (e.g., ISO 16750-2 pulse 5a) |
| MSL Level 1 rating | Eliminates pre-bake requirement prior to reflow, supporting standard SMT assembly processes |
Applications
| Automotive Power Supply Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V power rail inputs in engine control units (ECUs) against load dump and jump-start transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed upstream of DC-DC converters and LDOs. Use Value: Clamps to 15.6 V at 96.2 A, preventing overvoltage damage to downstream regulators rated for ≤16 V absolute max. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loops) in factory automation sensors exposed to relay coil flyback. IC Role / Device Role / Timing Role: Signal-line TVS suppressing sub-100 ns transients induced by nearby inductive switching. Use Value: Sub-1 ns response time and 9.40 V stand-off ensure no false triggering during normal 24 V loop operation. |
| Consumer Device USB Port Protection | Telecom Base Station DC Feeder Protection |
Use Scenario: Adding secondary surge protection on VBUS line of USB-C ports in portable docking stations. IC Role / Device Role / Timing Role: Secondary clamping stage after primary polymer PTC and common-mode choke. Use Value: 1500 W rating handles combination wave (10/700 µs) surges from AC adapter coupling without degradation. |
Use Scenario: Protecting -48 V DC feeder inputs in 5G remote radio units (RRUs) against lightning-induced surges. IC Role / Device Role / Timing Role: High-power unidirectional TVS mounted at entry point before DC-DC isolation stage. Use Value: Dual-cathode TO-277A layout lowers effective clamping impedance, reducing voltage overshoot across long PCB traces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ11A | Lower peak power (400 W), SMA package, 11.1 V VBR min, 18.2 V VC at 21.9 A | Suitable for lower-energy consumer electronics; not AEC-Q101 qualified or rated for 185 °C | Select when cost and board space are prioritized over automotive reliability and high-surge immunity |
| TPC12AHM3_A/I | Higher VBR (11.4–12.6 V), 10.2 V VWM, 16.7 V VC at 89.8 A, identical TO-277A package and AEC-Q101 rating | Better suited for 13.5 V nominal systems where higher stand-off avoids leakage-related power loss | Choose for 12 V battery systems with elevated cold-crank voltage margins or tighter leakage budgets |
Compared with SMAJ11A and TPC12AHM3_A/I, the TPC11AHM3_A/I delivers optimal balance of clamping voltage (15.6 V), surge current handling (96.2 A), and automotive qualification - making it the preferred choice for 12 V ECUs requiring robust, production-ready transient protection without layout change.
Availability
TPC11AHM3_A/I is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface development, and telecom DC power system prototyping requiring stable component supply and long-term lifecycle support.
Supply support for TPC11AHM3_A/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, efficiency, and application-specific optimization.
The TPC series belongs to Vishay's PAR® family of high-power surface-mount TVS diodes, engineered specifically for automotive and industrial surge immunity where AEC-Q101 compliance, high-temperature operation, and low-profile packaging are mandatory.
FAQ
What is the clamping voltage of the TPC11AHM3_A/I under full-rated surge current?
The TPC11AHM3_A/I has a maximum clamping voltage (VC) of 15.6 V when subjected to its rated peak pulse current (IPPM) of 96.2 A using a 10/1000 µs waveform. This value is measured per IEC 61000-4-5 test conditions and ensures protected circuitry remains within safe operating limits during standardized surge events. The TPC11AHM3_A/I maintains this clamping performance across its specified junction temperature range.
Is the TPC11AHM3_A/I suitable for automotive applications?
Yes, the TPC11AHM3_A/I is AEC-Q101 qualified and rated for junction temperatures up to +185 °C, making it fully suitable for under-hood and powertrain applications. Its TO-277A package meets automotive assembly requirements including MSL Level 1 and JESD 201 Class 2 whisker resistance. The TPC11AHM3_A/I is explicitly listed in Vishay's automotive-grade TVS portfolio for ISO 7637-2 and ISO 16750-2 compliance.
What does the "HM3_A/I" suffix indicate in TPC11AHM3_A/I?
The "HM3" denotes Vishay's halogen-free, RoHS-compliant, AEC-Q101-qualified TO-277A package variant; "A" is the revision code; "I" specifies the 13-inch tape-and-reel delivery format (6500 units per reel). This distinguishes it from the "H" variant (7-inch reel, 1500 units), while preserving identical electrical and thermal specifications. The TPC11AHM3_A/I shares all performance characteristics with other HM3-suffix variants in the TPC family.
How does the dual-cathode configuration of the TPC11AHM3_A/I improve performance?
The dual-cathode structure in the TO-277A package reduces effective dynamic resistance during surge events, lowering clamping voltage overshoot and improving energy distribution across the silicon die. This design enables the TPC11AHM3_A/I to achieve 1500 W peak power dissipation with lower thermal stress than single-cathode equivalents. The configuration is intrinsic to the TPC11AHM3_A/I's package layout and requires no external circuit modification.
What is the maximum leakage current of the TPC11AHM3_A/I at its stand-off voltage?
At its 9.40 V stand-off voltage (VWM) and 25 °C ambient temperature, the TPC11AHM3_A/I exhibits a maximum reverse leakage current (IR) of 5.0 µA. At elevated junction temperature (150 °C), leakage increases to a maximum of 50 µA - still well within acceptable limits for low-power sensor and microcontroller I/O protection. This low leakage ensures minimal impact on system quiescent current, especially critical in always-on automotive modules.
TPC11AHM3_A/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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 9.4V
- Voltage - Breakdown (Min):
- 10.5V
- Voltage - Clamping (Max) @ Ipp:
- 15.6V
- Current - Peak Pulse (10/1000µs):
- 96.2A
- 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)
TPC11AHM3_A/I FAQ
1.How can I place an order for TPC11AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC11AHM3_A/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 TPC11AHM3_A/I reliable?
The price and inventory of TPC11AHM3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPC11AHM3_A/I is usually 5 days.
3.What payment methods are accepted for TPC11AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC11AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC11AHM3_A/I?
TPC11AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC11AHM3_A/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 TPC11AHM3_A/I?
For technical support, including TPC11AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC11AHM3_A/I requirements.
6.How does Aetrix verify that TPC11AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All TPC11AHM3_A/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 TPC11AHM3_A/I meets industry standards.
7.What is the process for return or replacement of TPC11AHM3_A/I?
All TPC11AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPC11AHM3_A/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 TPC11AHM3_A/I part is unused and in its original packaging.
Return procedure for TPC11AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC11AHM3_A/I Tags
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Diodes Incorporated
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