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Vishay General Semiconductor - Diodes Division TPC30AHM3/87A
- Part No.:
- TPC30AHM3/87A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC30AHM3/87A.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:6,393
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Product details
Overview
TPC30AHM3/87A 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), 41.4 V maximum clamping voltage (VC) at 36.2 A peak pulse current, and 185 °C maximum junction temperature.
For engineers reviewing the TPC30AHM3/87A datasheet, TPC30AHM3/87A pinout, TPC30AHM3/87A application, or TPC30AHM3/87A equivalent, key selection criteria include unidirectional surge handling, AEC-Q101 qualification, low-profile 1.1 mm height, and compatibility with automated SMT placement on sensor signal lines and MOSFET gate drivers.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable clamping performance under repetitive transients. Its 10/1000 μs waveform rating supports 1500 W peak power dissipation, with low incremental surge resistance enabling effective suppression of inductive switching spikes.
The device operates across -65 °C to +185 °C, meets MSL Level 1 per J-STD-020, and is halogen-free, RoHS-compliant, and qualified to AEC-Q101 for automotive-grade reliability. The SMPC (TO-277A) package provides robust thermal performance and solderability per J-STD-002 and JESD 22-B102.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (Nominal) | 30.0 V - Ensures precise triggering above system operating voltage while maintaining margin against false clamping |
| VC @ IPPM | 41.4 V - Limits downstream voltage stress during 36.2 A transient events, protecting 3.3 V/5 V/12 V ICs |
| PPPM | 1500 W - Handles high-energy surges from inductive loads such as solenoids and motors |
| TJ max. | +185 °C - Supports operation in under-hood automotive environments and high-power industrial enclosures |
| Polarity | Unidirectional - Provides DC-biased protection for positive-rail circuits without reverse leakage concerns |
| Package | SMPC (TO-277A) - Enables compact layout with 0.189" × 0.173" footprint and 1.1 mm profile for space-constrained PCBs |
Pinout & Package
SMPC (TO-277A) is a 3-terminal surface-mount package with cathode band marking. Dimensions: 4.80 mm × 4.40 mm × 1.1 mm (L × W × H), compliant with JEDEC TO-277A standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Cathode | Connected to protected line; carries surge current into ground path during clamping |
| Terminal 2 | Cathode | Parallel cathode connection for enhanced current sharing and lower effective clamping impedance |
| Terminal 3 | Anode | Connected to system ground; completes low-inductance return path for transient energy dissipation |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Stable VBR drift < ±5 % over lifetime, critical for long-term automotive ECU reliability |
| MSL Level 1 | No floor life limitation or bake requirement before reflow, simplifying manufacturing logistics |
| AEC-Q101 qualification | Validated for automotive applications including engine control, ADAS sensors, and body electronics |
| Low profile (1.1 mm) | Enables placement beneath connectors or near tall components without mechanical interference |
| Matte tin plating | Ensures reliable solder joint formation per J-STD-002, eliminating whisker risk per JESD 201 Class 2 |
Applications
| Automotive Sensor Protection | Industrial Motor Drive Gate Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load-dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and ground to clamp transients before they reach sensitive input stages. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V interface ICs during 12 V/24 V vehicle electrical system disturbances. | Use Scenario: Shielding high-side and low-side MOSFET gate drivers from Miller-induced voltage spikes during fast switching. IC Role / Device Role / Timing Role: TVS connected from gate-to-source to absorb dv/dt-induced coupling and prevent unintended turn-on. Use Value: Maintains gate drive integrity in 48 V BLDC motor controllers, reducing false triggering and improving system uptime. |
| Telecom Power Line Surge Suppression | Consumer Appliance Control Board Protection |
Use Scenario: Safeguarding 48 V PoE-powered Ethernet PHYs and DC-DC converters from lightning-induced surges on primary-side inputs. IC Role / Device Role / Timing Role: Primary-side TVS on DC input rail to divert >1 kV transients before reaching isolation barriers and regulation circuitry. Use Value: Meets IEC 61000-4-5 Level 4 (4 kV) requirements with single-device solution, minimizing BOM count. | Use Scenario: Securing microcontroller I/O pins and relay driver outputs in washing machines, HVAC controls, and smart home hubs exposed to relay coil back-EMF. IC Role / Device Role / Timing Role: Localized TVS on each switched output to suppress inductive kickback from 12 V solenoid valves and fan motors. Use Value: Eliminates need for external snubbers or RC networks, reducing board area and assembly cost by 30 % per protected node. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ30A | Same VBR (30 V), but lower PPPM = 400 W and larger SMA package (4.5 mm × 2.7 mm) | Limited to lower-energy transients; unsuitable for automotive load-dump or industrial motor drive spikes | Select when cost sensitivity outweighs surge energy requirements and board space permits larger footprint |
| TPC33AHM3/87A | Higher VBR (33.0 V) and VC (45.7 V); otherwise identical construction, package, and qualification | Better suited for 24 V systems with higher stand-off margin; not drop-in for 12 V rails requiring tight clamping | Choose for 24 V automotive modules where 30 V VWM may risk false triggering during battery ripple |
Compared with SMAJ30A and TPC33AHM3/87A, the TPC30AHM3/87A uniquely balances 1500 W surge capacity, AEC-Q101 compliance, and ultra-low 1.1 mm profile-making it optimal for space-constrained 12 V automotive ECUs and industrial edge controllers demanding high-reliability transient immunity.
Availability
TPC30AHM3/87A is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial motor drive gate protection, and telecom power line surge suppression requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for TPC30AHM3/87A 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, and protection devices with emphasis on reliability, efficiency, and automotive-grade qualification.
The TPC series belongs to Vishay's PAR® family of high-power TVS diodes, engineered specifically for AEC-Q101-compliant transient suppression in harsh-environment automotive and industrial control systems.
FAQ
What is the exact breakdown voltage tolerance for TPC30AHM3/87A?
The TPC30AHM3/87A has a specified breakdown voltage range of 28.5 V (min) to 31.5 V (max) at 1.0 mA test current, with 30.0 V as the nominal value. This ±5 % tolerance ensures consistent clamping behavior across production lots and temperature ranges up to 150 °C, as confirmed in the Vishay Electrical Characteristics table.
Is TPC30AHM3/87A compatible with lead-free reflow profiles?
Yes, TPC30AHM3/87A is fully compatible with standard lead-free reflow profiles (JEDEC J-STD-020). Its SMPC (TO-277A) package is rated MSL Level 1, meaning it has unlimited floor life and requires no pre-bake prior to soldering-ensuring robust intermetallic formation and void-free joints at peak temperatures up to 260 °C.
Does TPC30AHM3/87A meet automotive qualification standards?
Yes, TPC30AHM3/87A is explicitly AEC-Q101 qualified, as stated in the Vishay datasheet revision 19-Apr-2022. This qualification covers stress tests including HTGB, AC/DC life test, temperature cycling, and mechanical shock-validating its suitability for automotive powertrain, chassis, and body electronics applications.
What is the maximum clamping voltage of TPC30AHM3/87A at rated surge current?
The maximum clamping voltage (VC) of TPC30AHM3/87A is 41.4 V at 36.2 A peak pulse current (IPPM) under 10/1000 μs waveform conditions. This value is measured per ANSI/IEEE C62.35 and guarantees predictable voltage limiting during standardized surge events, protecting downstream 3.3 V, 5 V, and 12 V logic and analog circuitry.
How does the dual-cathode configuration of TPC30AHM3/87A improve performance?
The dual-cathode terminals (Pins 1 and 2) in TPC30AHM3/87A reduce effective series inductance and incremental surge resistance by providing parallel current paths. This configuration lowers clamping impedance during fast transients, resulting in tighter VC control and improved energy-handling consistency compared to single-cathode TVS devices in the same package.
TPC30AHM3/87A 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)
TPC30AHM3/87A FAQ
1.How can I place an order for TPC30AHM3/87A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC30AHM3/87A 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 TPC30AHM3/87A reliable?
The price and inventory of TPC30AHM3/87A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPC30AHM3/87A is usually 5 days.
3.What payment methods are accepted for TPC30AHM3/87A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC30AHM3/87A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC30AHM3/87A?
TPC30AHM3/87A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC30AHM3/87A 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 TPC30AHM3/87A?
For technical support, including TPC30AHM3/87A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC30AHM3/87A requirements.
6.How does Aetrix verify that TPC30AHM3/87A is sourced from the original manufacturer or authorized distributors?
All TPC30AHM3/87A 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 TPC30AHM3/87A meets industry standards.
7.What is the process for return or replacement of TPC30AHM3/87A?
All TPC30AHM3/87A units undergo pre-shipment inspection (PSI). If there is an issue with TPC30AHM3/87A, 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 TPC30AHM3/87A part is unused and in its original packaging.
Return procedure for TPC30AHM3/87A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC30AHM3/87A Tags
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