Vishay General Semiconductor - Diodes Division TPC13AHM3_A/I
- Part No.:
- TPC13AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC13AHM3_A/I.pdf
- Description:
- TVS DIODE 11.1VWM 18.2VC TO277A
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
TPC13AHM3_A/I from Vishay General Semiconductor is a unidirectional 1500 W transient voltage suppressor (TVS) in TO-277A (SMPC) package, featuring 12.4 V to 13.7 V breakdown voltage (VBR), 11.1 V stand-off voltage (VWM), and 18.2 V clamping voltage (VC) at 82.4 A peak pulse current. It delivers AEC-Q101 qualification, 185 °C junction temperature rating, and low-profile 1.1 mm height for automotive-grade circuit protection.
For engineers reviewing the TPC13AHM3_A/I datasheet, TPC13AHM3_A/I pinout, TPC13AHM3_A/I application, or TPC13AHM3_A/I equivalent, this device serves as a high-reliability, surface-mount TVS for clamping inductive switching transients on power rails and signal lines in automotive ECUs, industrial sensors, and telecom interface circuits.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology optimized for fast response (<1 ns) and low incremental surge resistance, enabling effective suppression of 10/1000 µs waveform transients up to 1500 W. Its unidirectional polarity and 11.1 V stand-off voltage make it suitable for DC power rail protection where reverse conduction must be blocked.
The TO-277A (SMPC) package supports automated placement and meets MSL Level 1 per J-STD-020, with matte tin-plated terminals compliant to J-STD-002 and JESD 22-B102. The device operates across –65 °C to +185 °C and passes JESD 201 Class 2 whisker testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 12.4 V / 13.7 V - ensures reliable triggering above normal operating voltage while avoiding false clamping during ripple or tolerance drift |
| VWM | 11.1 V - maximum continuous reverse voltage before leakage exceeds 2 µA, compatible with 12 V nominal automotive systems |
| VC @ IPPM | 18.2 V - clamping voltage at 82.4 A peak pulse, limiting downstream IC stress to safe levels during load dump or inductive kick |
| PPPM | 1500 W - peak pulse power handling for 10/1000 µs waveform, sufficient for ISO 7637-2 Pulse 1 & 2a/2b compliance |
| TJ max | +185 °C - enables operation in under-hood automotive environments without thermal derating penalties |
| Package | TO-277A (SMPC) - 3-terminal surface-mount package with 1.1 mm profile, optimized for space-constrained PCB layouts |
| AEC-Q101 | Qualified - certified for automotive electronic modules requiring zero-defect reliability and extended temperature cycling |
Pinout & Package
TO-277A (SMPC) is a 3-terminal surface-mount package with cathode-anode-cathode configuration. Dimensions conform to JEDEC TO-277A standard: 4.80 mm × 3.70 mm footprint, 1.1 mm typical height, and 2.20 mm terminal pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 (Cathode) | Anode-side cathode connection | Connected to protected line (e.g., 12 V rail); forms one half of dual-cathode structure for symmetric layout routing |
| Terminal 2 (Anode) | Common anode node | Internally tied to substrate ground reference; must be connected to system ground plane for effective clamping |
| Terminal 3 (Cathode) | Cathode connection | Second cathode terminal, electrically identical to Terminal 1; enables balanced current sharing and reduced trace inductance |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier process reduces leakage drift over temperature and lifetime, critical for automotive long-term reliability |
| Low profile (1.1 mm) | Enables placement beneath connectors or near heat-sensitive components without mechanical interference or airflow obstruction |
| MSL Level 1 | Zero floor life limitation - can be stored indefinitely at ≤30 °C/60 % RH and mounted without baking, reducing manufacturing overhead |
| Fast response time | <1 ns turn-on - captures sub-microsecond transients before sensitive gate drivers or microcontrollers experience overvoltage damage |
| Halogen-free & RoHS | HM3 suffix confirms compliance with environmental regulations and eliminates corrosive halogen emissions during reflow or failure |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamping |
|---|---|
|
Use Scenario: Protecting 12 V supply inputs in engine control units (ECUs) against ISO 7637-2 load dump and inductive switching spikes. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between battery rail and DC-DC converter input. Use Value: Limits transient voltage to ≤18.2 V at 82.4 A, preventing latch-up or gate oxide rupture in downstream PMICs and MCUs. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loop) of pressure/temperature sensors in factory automation. IC Role / Device Role / Timing Role: Low-capacitance TVS shunt protector on sensor transmitter output, referenced to local ground. Use Value: Maintains signal integrity with <2 µA leakage at 11.1 V while clamping ESD events per IEC 61000-4-2 Level 4 (15 kV air). |
| Telecom Interface Surge Suppression | Consumer Device USB Power Input Protection |
|
Use Scenario: Front-end protection of RS-485 transceivers in base station backhaul equipment exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary unidirectional clamp on VCC rail feeding isolated data interface ICs. Use Value: Withstands 1500 W peak pulses and operates reliably up to +185 °C ambient, meeting Telcordia GR-1089-CORE requirements. |
Use Scenario: Overvoltage guard on 5 V USB power input of smart home hubs subjected to adapter fault conditions. IC Role / Device Role / Timing Role: Standoff-rated TVS placed upstream of USB port ESD diode array and LDO regulator. Use Value: Blocks >11.1 V faults while allowing normal 5 V operation; 18.2 V clamping prevents thermal runaway in linear regulators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS 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 | Not AEC-Q101 qualified; limited to commercial/industrial use; unsuitable for under-hood automotive | Select when cost sensitivity outweighs automotive qualification and 1500 W surge margin is unnecessary |
| TPC13AHE3_A/I | Same electrical specs but HM3 → HE3 suffix: halogen-free, RoHS-compliant, and AEC-Q101 qualified with identical TO-277A package | No functional difference; HE3 denotes later revision with updated material categorization (doc# 99912) | Prefer TPC13AHM3_A/I for legacy design continuity; TPC13AHE3_A/I for new designs requiring latest Vishay material compliance |
Compared with SMAJ12A and TPC13AHE3_A/I, the TPC13AHM3_A/I uniquely combines 1500 W surge capability, AEC-Q101 qualification, and 1.1 mm profile in TO-277A-enabling compact, high-reliability protection where thermal margin, automotive compliance, and board space are simultaneously constrained.
Availability
TPC13AHM3_A/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom infrastructure equipment requiring stable component supply and long-term lifecycle support.
Supply support for TPC13AHM3_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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and performance in harsh environments.
The TPC series belongs to Vishay's PAR® family of high-power TVS diodes, engineered specifically for automotive-grade transient suppression in 12 V and 24 V systems where AEC-Q101 compliance and thermal robustness are mandatory.
FAQ
What is the clamping voltage of the TPC13AHM3_A/I at its rated peak pulse current?
The TPC13AHM3_A/I has a maximum clamping voltage (VC) of 18.2 V when subjected to its rated peak pulse current of 82.4 A under the standard 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and ensures downstream components remain within safe operating voltage limits during surge events. The TPC13AHM3_A/I maintains this clamping performance across its full operating temperature range.
Is the TPC13AHM3_A/I suitable for automotive applications?
Yes, the TPC13AHM3_A/I is AEC-Q101 qualified and rated for junction temperatures up to +185 °C, making it suitable for under-hood automotive applications including engine control units, body control modules, and ADAS sensor interfaces. Its TO-277A package and HM3 suffix confirm halogen-free, RoHS-compliant, and whisker-resistant construction required by automotive OEMs. The TPC13AHM3_A/I meets all stress test requirements defined in the AEC-Q101 standard.
What does the "HM3" suffix mean in TPC13AHM3_A/I?
The "HM3" suffix in TPC13AHM3_A/I indicates halogen-free, RoHS-compliant construction that satisfies Vishay's material categorization per document 99912, and confirms AEC-Q101 qualification. It also denotes compliance with JESD 201 Class 2 whisker testing and matte tin-plated terminals solderable per J-STD-002. The "A" denotes revision level, and "I" specifies 13″ tape-and-reel packaging with 6500 units per reel.
How does the dual-cathode configuration of the TPC13AHM3_A/I improve circuit protection?
The TPC13AHM3_A/I features a three-terminal TO-277A package with two cathodes and one common anode, enabling symmetrical PCB layout and reduced parasitic inductance in high-di/dt surge paths. This configuration allows equal current sharing between cathodes during clamping, lowering overall dynamic impedance and improving transient energy absorption. The dual-cathode design is especially beneficial in high-frequency surge scenarios such as ESD and fast-rising inductive spikes.
Can the TPC13AHM3_A/I replace the TPC13A in an existing design?
Yes, the TPC13AHM3_A/I is a direct replacement for the base TPC13A part in terms of electrical specifications, thermal performance, and mechanical footprint. The HM3 suffix adds halogen-free, RoHS, AEC-Q101, and whisker-test compliance without altering VBR, VWM, VC, or package dimensions. No PCB layout changes are required when upgrading from TPC13A to TPC13AHM3_A/I, and the TPC13AHM3_A/I maintains full compatibility with existing reflow profiles and assembly processes.
TPC13AHM3_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):
- 11.1V
- Voltage - Breakdown (Min):
- 12.4V
- Voltage - Clamping (Max) @ Ipp:
- 18.2V
- Current - Peak Pulse (10/1000µs):
- 82.4A
- 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)
TPC13AHM3_A/I FAQ
1.How can I place an order for TPC13AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC13AHM3_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 TPC13AHM3_A/I reliable?
The price and inventory of TPC13AHM3_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 TPC13AHM3_A/I is usually 5 days.
3.What payment methods are accepted for TPC13AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC13AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC13AHM3_A/I?
TPC13AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC13AHM3_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 TPC13AHM3_A/I?
For technical support, including TPC13AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC13AHM3_A/I requirements.
6.How does Aetrix verify that TPC13AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All TPC13AHM3_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 TPC13AHM3_A/I meets industry standards.
7.What is the process for return or replacement of TPC13AHM3_A/I?
All TPC13AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPC13AHM3_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 TPC13AHM3_A/I part is unused and in its original packaging.
Return procedure for TPC13AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC13AHM3_A/I Tags

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Diodes Incorporated

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Diodes Incorporated

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Diodes Incorporated

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Diodes Incorporated

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Diodes Incorporated

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Nexperia USA Inc.

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Toshiba Semiconductor and Storage

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Diodes Incorporated
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