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Vishay General Semiconductor - Diodes Division TPC30AHM3/86A
- Part No.:
- TPC30AHM3/86A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC30AHM3/86A.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:3,072
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Product details
Overview
TPC30AHM3/86A 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 electronics protection. It features a 30.0 V nominal breakdown voltage (VBR), 25.6 V stand-off voltage (VWM), 41.4 V maximum clamping voltage (VC) at 36.2 A peak pulse current, and AEC-Q101 qualification for under-hood applications.
For engineers reviewing the TPC30AHM3/86A datasheet, TPC30AHM3/86A pinout, TPC30AHM3/86A application, or TPC30AHM3/86A equivalent, key selection criteria include unidirectional surge capability, 185 °C junction temperature rating, low-profile 1.1 mm height, MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on automotive-grade PCBs.
Technical Context
The TPC30AHM3/86A employs passivated anisotropic rectifier technology to deliver stable breakdown behavior and low incremental surge resistance. Its 10/1000 μs waveform peak power rating of 1500 W and 8.3 ms half-sine IFSM rating of 200 A support robust protection against inductive switching transients and load dump events.
Designed for automotive-grade reliability, the device operates across -65 °C to +185 °C junction temperature range and meets JESD201 Class 2 whisker resistance. The SMPC (TO-277A) package provides optimized thermal performance with JEDEC-compliant mounting pad layout and UL 94 V-0 molding compound.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (Nominal) | 30.0 V - Ensures reliable triggering above system operating voltage while maintaining margin against false clamping |
| VWM | 25.6 V - Maximum continuous reverse voltage the device blocks without leakage exceeding 1 μA at 25 °C |
| VC @ IPPM | 41.4 V - Clamped voltage during 36.2 A 10/1000 μs surge, defining protected circuit's worst-case overvoltage exposure |
| PPPM | 1500 W - Peak pulse power handling capacity for transient suppression per single event, per Fig. 3 waveform |
| TJ max. | +185 °C - Enables operation in high-temperature under-hood environments without derating loss |
| Package | SMPC (TO-277A) - Surface-mount, 3-terminal, low-profile (1.1 mm typical height), AEC-Q101 qualified package |
| Polarity | Unidirectional - Provides clamping only for positive transients relative to cathode; requires correct orientation in circuit |
Pinout & Package
TPC30AHM3/86A uses the SMPC (TO-277A) package: a 3-terminal surface-mount case with cathode band marking on Terminal 1 and Terminal 2, and anode on Terminal 3. Dimensions conform to JEDEC TO-277A standard, with 0.189" × 0.134" footprint and 1.1 mm typical height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Cathode | Connected to protected line (e.g., power rail or signal); forms clamping path with Terminal 3 during overvoltage |
| Terminal 2 | Cathode | Electrically tied to Terminal 1 internally; enables dual-cathode layout for improved current sharing and thermal distribution |
| Terminal 3 | Anode | Connected to ground or low-impedance return path; completes clamping loop during transient conduction |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier process ensures stable VBR tolerance (±5 %) and low parametric drift over temperature and life |
| AEC-Q101 qualification | Validated for automotive applications including engine control units, body electronics, and ADAS sensor interfaces |
| MSL Level 1 rating | Allows unlimited floor life and reflow compatibility without dry-pack or baking requirements |
| Low profile (1.1 mm) | Enables use in space-constrained modules such as ECU housings and compact sensor assemblies |
| Halogen-free & RoHS-compliant | Meets global environmental compliance mandates without compromising surge performance or thermal robustness |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed microcontroller power inputs in engine control units against load dump and jump-start surges. IC Role / Device Role: Unidirectional TVS placed between VIN and GND to clamp transients above 25.6 V before reaching downstream regulators. Use Value: Withstands 1500 W pulses and maintains clamping at ≤41.4 V, preserving LDO integrity and preventing MCU brownout or latch-up. |
Use Scenario: Safeguarding analog output lines of pressure/temperature sensors in factory automation PLC I/O modules. IC Role / Device Role: TVS connected across sensor signal and reference ground to suppress ESD and switching noise coupled via long cables. Use Value: 1.1 mm height allows co-placement with precision op-amps; 1 μA leakage at VWM avoids signal offset errors in mV-level outputs. |
| Automotive Lighting Driver Protection | Telecom DC Power Input Protection |
|
Use Scenario: Shielding LED driver ICs in adaptive front lighting systems (AFS) from inductive kickback during PWM dimming. IC Role / Device Role: TVS installed at driver output node to absorb energy from coil flyback and prevent gate oxide damage. Use Value: 200 A IFSM rating handles repetitive 8.3 ms surges; 185 °C TJ rating supports operation near hot LED heatsinks. |
Use Scenario: Guarding primary DC input of PoE-powered network switches against lightning-induced surges on outdoor Ethernet links. IC Role / Device Role: First-stage unidirectional TVS on 48 V DC input rail upstream of DC/DC converters and PMICs. Use Value: 1500 W PPPM and low VC/VBR ratio (1.38) minimize let-through energy, reducing stress on secondary protection stages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ30A | Same VBR (30.0 V), but lower PPPM (400 W), SMA package (higher thermal resistance, 1.8 mm height) | Limited to lower-energy transients; unsuitable for automotive load dump per ISO 7637-2 Pulse 5a | Select when cost sensitivity outweighs surge margin and board height is not constrained |
| TPC30AHM3_A | Identical electrical specs and SMPC package; differs only in packaging code (reel size: 1500 vs. 86A's unspecified quantity) | No functional difference; identical AEC-Q101 qualification and thermal performance | Choose TPC30AHM3_A for standard 7" tape-and-reel delivery; TPC30AHM3/86A indicates alternate packaging configuration |
Compared with SMAJ30A and TPC30AHM3_A, the TPC30AHM3/86A delivers superior surge robustness (1500 W vs. 400 W) and automotive-grade reliability in a lower-profile package, while differing from TPC30AHM3_A solely in packaging logistics-not electrical or mechanical performance.
Availability
TPC30AHM3/86A is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface protection, and telecom DC input protection requiring stable component supply, AEC-Q101 compliance, and high-temperature operational continuity.
Supply support for TPC30AHM3/86A 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 MOSFETs 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 transient suppression where high surge capability, low profile, and AEC-Q101 qualification are mandatory.
FAQ
What is the clamping voltage of the TPC30AHM3/86A at its rated peak pulse current?
The TPC30AHM3/86A has a maximum clamping voltage (VC) of 41.4 V at its specified peak pulse current (IPPM) of 36.2 A, measured using the 10/1000 μs waveform per Figure 3 in the datasheet. This value defines the upper voltage limit imposed on protected circuitry during a full-rated transient event and is critical for ensuring downstream ICs remain within absolute maximum ratings.
Is the TPC30AHM3/86A suitable for automotive under-hood applications?
Yes, the TPC30AHM3/86A is AEC-Q101 qualified and rated for junction temperatures up to +185 °C, making it suitable for under-hood automotive applications such as engine control units, transmission control modules, and lighting drivers. Its SMPC package, halogen-free construction, and MSL Level 1 rating further support high-reliability deployment in harsh thermal and manufacturing environments.
How does the dual-cathode configuration of the TPC30AHM3/86A improve performance?
The TPC30AHM3/86A features two cathode terminals (Terminals 1 and 2) electrically tied together internally. This design reduces effective series inductance and improves current sharing during high-di/dt transients, resulting in lower clamping overshoot and more uniform thermal distribution across the die-key advantages for protecting fast-switching power stages and sensitive analog circuits.
What is the stand-off voltage (VWM) of the TPC30AHM3/86A, and why is it important?
The TPC30AHM3/86A has a stand-off voltage (VWM) of 25.6 V, meaning it remains non-conductive with leakage <1 μA up to this reverse voltage at 25 °C. This parameter ensures the device does not interfere with normal 24 V automotive or industrial system operation while providing sufficient margin below VBR (30.0 V) to avoid false triggering during ripple or tolerance excursions.
Does the TPC30AHM3/86A require special PCB layout considerations?
Yes-the TPC30AHM3/86A benefits from symmetric, low-inductance PCB layout: short, wide traces to both cathodes (Terminals 1 and 2) and anode (Terminal 3), with thermal relief minimized on cathode pads to enhance heat dissipation. The recommended JEDEC TO-277A mounting pad dimensions (0.189" × 0.134") must be followed to ensure mechanical reliability and optimal thermal performance in the final assembly.
TPC30AHM3/86A 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):
- 25.6V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 41.4V
- Current - Peak Pulse (10/1000µs):
- 36.2A
- 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)
TPC30AHM3/86A FAQ
1.How can I place an order for TPC30AHM3/86A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC30AHM3/86A 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 TPC30AHM3/86A reliable?
The price and inventory of TPC30AHM3/86A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPC30AHM3/86A is usually 5 days.
3.What payment methods are accepted for TPC30AHM3/86A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC30AHM3/86A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC30AHM3/86A?
TPC30AHM3/86A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC30AHM3/86A 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 TPC30AHM3/86A?
For technical support, including TPC30AHM3/86A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC30AHM3/86A requirements.
6.How does Aetrix verify that TPC30AHM3/86A is sourced from the original manufacturer or authorized distributors?
All TPC30AHM3/86A 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 TPC30AHM3/86A meets industry standards.
7.What is the process for return or replacement of TPC30AHM3/86A?
All TPC30AHM3/86A units undergo pre-shipment inspection (PSI). If there is an issue with TPC30AHM3/86A, 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 TPC30AHM3/86A part is unused and in its original packaging.
Return procedure for TPC30AHM3/86A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC30AHM3/86A Tags
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