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Vishay General Semiconductor - Diodes Division TPC30AHM3_A/I
- Part No.:
- TPC30AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC30AHM3_A/I.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:3,629
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Product details
Overview
TPC30AHM3_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 standoff voltage of 25.6 V, breakdown voltage range 28.5–31.5 V at 1 mA, clamping voltage of 41.4 V at 36.2 A peak pulse current, and operates up to +185 °C junction temperature.
For engineers reviewing the TPC30AHM3_A/I datasheet, TPC30AHM3_A/I pinout, TPC30AHM3_A/I application, or TPC30AHM3_A/I equivalent, this device is selected for robust overvoltage protection on power rails and signal lines where low-profile surface-mount placement, AEC-Q101 qualification, and fast response to inductive switching transients are critical.
Technical Context
The TPC30AHM3_A/I employs passivated anisotropic rectifier technology optimized for low incremental surge resistance and excellent clamping performance under 10/1000 µs transients. Its unidirectional architecture enables integration into DC power rail protection without reverse conduction concerns.
Rated for TJ = –65 °C to +185 °C and qualified to AEC-Q101, it supports automotive-grade reliability with MSL Level 1 moisture sensitivity and halogen-free, RoHS-compliant construction. The TO-277A (SMPC) package provides a 1.1 mm typical height ideal for space-constrained PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 25.6 V - maximum continuous reverse working voltage before clamping begins |
| VBR min/max | 28.5 V / 31.5 V at 1 mA - ensures predictable breakdown onset across production lot |
| PPPM | 1500 W - peak pulse power handling capability per 10/1000 µs waveform |
| VC @ IPPM | 41.4 V at 36.2 A - clamped voltage during worst-case surge, limiting downstream stress |
| TJ max | +185 °C - enables operation in under-hood automotive environments and high-power industrial enclosures |
| Polarity | Unidirectional - suitable for DC supply line protection with cathode-to-rail configuration |
| Package | TO-277A (SMPC) - ultra-low profile (1.1 mm), JEDEC-compliant, optimized for automated SMT placement |
Pinout & Package
TO-277A (SMPC) is a 3-terminal surface-mount package with dual cathodes and single anode. The package measures 4.80 mm × 3.70 mm × 1.1 mm (L × W × H) and uses matte tin-plated leads compliant with J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Input/Power Rail Connection | Connected to protected line; conducts during forward-biased surge events |
| Cathode 1 (Pin 2) | Output/Ground Reference | Primary cathode terminal tied to system ground or return path |
| Cathode 2 (Pin 3) | Output/Ground Reference | Parallel cathode terminal providing lower inductance path and enhanced current sharing |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and ADAS power domains |
| Junction temperature rating | 185 °C maximum operating temperature ensures long-term reliability in thermally aggressive environments |
| Low-profile SMPC package | 1.1 mm typical height enables use in ultra-thin modules and stacked PCB assemblies |
| MSL Level 1 compliance | Unlimited floor life before reflow, eliminating bake requirements and streamlining manufacturing |
| Halogen-free & RoHS | Meets global environmental regulations and supports lead-free reflow processes without compromising surge performance |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V CAN bus power supplies and LIN transceivers against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and regulator input to clamp transients below IC absolute maximum ratings. Use Value: Clamps to 41.4 V at 36.2 A, preventing damage to downstream PMICs and microcontrollers during 12 V/24 V system surges. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to absorb ESD and inductive kickback from solenoid drivers. Use Value: Sub-1.1 mm height allows placement adjacent to miniaturized sensor connectors without interfering with shielded housings. |
| Telecom DC Power Input Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Securing 48 V PoE-powered equipment inputs against lightning-induced surges and hot-swap transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp on DC input stage ahead of DC/DC converters and Ethernet PHYs. Use Value: 1500 W peak power rating handles repetitive 10/1000 µs surges per IEC 61000-4-5 Level 4 without degradation. | Use Scenario: Shielding BLDC motor driver gate drivers and current sense amplifiers in smart home appliances. IC Role / Device Role / Timing Role: TVS placed across half-bridge supply rails to suppress flyback voltage spikes during PWM switching. Use Value: Fast response time and low clamping voltage preserve MOSFET SOA margins and reduce need for snubber networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ33A-E3/5AT (Vishay) | Lower PPPM (400 W), SMA package (2.5 mm height), VWM = 33 V, VC = 53.3 V @ 7.5 A | Not AEC-Q101 qualified; suited for cost-sensitive consumer designs, not automotive under-hood | Select when board height >1.1 mm is acceptable and automotive qualification is unnecessary |
| TPC33AHM3_A/I (Vishay) | VWM = 28.2 V, VBR = 31.4–34.7 V, VC = 45.7 V @ 32.8 A - higher clamping voltage but broader voltage margin | Same package, qualification, and thermal specs; used where tighter VWM tolerance is required | Choose for systems needing higher standoff voltage headroom while retaining identical mechanical fit and reliability |
Compared with SMAJ33A-E3/5AT and TPC33AHM3_A/I, the TPC30AHM3_A/I delivers optimal balance of clamping voltage (41.4 V), surge current capacity (36.2 A), and ultra-low profile (1.1 mm) within AEC-Q101-qualified construction - making it preferred for space-constrained automotive and industrial power rail protection.
Availability
TPC30AHM3_A/I is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, and telecom power input stages requiring stable component supply, AEC-Q101 compliance, and consistent TO-277A packaging.
Supply support for TPC30AHM3_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 is part of Vishay's PAR® family of high-power TVS diodes engineered specifically for automotive-grade transient suppression in harsh environments, combining high surge capability with compact surface-mount form factors.
FAQ
What is the maximum clamping voltage of the TPC30AHM3_A/I under rated surge conditions?
The TPC30AHM3_A/I has a maximum clamping voltage (VC) of 41.4 V when subjected to its rated peak pulse current of 36.2 A using the standard 10/1000 µs waveform. This value is measured at the device terminals and reflects actual voltage seen by downstream circuitry during transient events. The TPC30AHM3_A/I maintains this clamping performance across its full operating temperature range and is validated per ANSI/IEEE C62.35 test standards.
Is the TPC30AHM3_A/I qualified for automotive applications?
Yes, the TPC30AHM3_A/I is fully AEC-Q101 qualified and rated for junction temperatures up to +185 °C, making it suitable for under-hood and powertrain applications. Its TO-277A package meets MSL Level 1, and the device is halogen-free and RoHS-compliant. The TPC30AHM3_A/I is part of Vishay's automotive-grade PAR® TVS family, with qualification data documented in the official 89056 datasheet revision.
What does the "HM3_A/I" suffix indicate in TPC30AHM3_A/I?
The "HM3" denotes the TO-277A (SMPC) package with halogen-free, RoHS-compliant molding compound and matte tin-plated leads. "A" is the revision code; "I" indicates 13-inch tape-and-reel packaging with 6500 units per reel. This differs from "H"-coded reels (7-inch, 1500 units). The TPC30AHM3_A/I is functionally identical to other HM3 variants - only packaging and reel size differ.
How does the dual-cathode configuration of the TPC30AHM3_A/I improve performance?
The dual-cathode layout in the TO-277A package reduces effective series inductance and improves current sharing during high-di/dt transients. This results in more consistent clamping behavior and lower overshoot compared to single-cathode equivalents. The TPC30AHM3_A/I leverages this structure to achieve its specified 41.4 V clamping voltage at 36.2 A, verified per fig. 3 in the 89056 datasheet.
Can the TPC30AHM3_A/I replace older TO-220 or DO-214AB TVS diodes in existing designs?
The TPC30AHM3_A/I is not a direct drop-in replacement for TO-220 or DO-214AB packages due to different footprint and thermal characteristics. While it offers superior power density and lower profile, PCB layout changes are required to accommodate the TO-277A pad pattern. The TPC30AHM3_A/I should be evaluated as a new design element - not a retrofit - unless the original design already specifies SMPC-compatible mounting.
TPC30AHM3_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):
- 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_A/I FAQ
1.How can I place an order for TPC30AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC30AHM3_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 TPC30AHM3_A/I reliable?
The price and inventory of TPC30AHM3_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 TPC30AHM3_A/I is usually 5 days.
3.What payment methods are accepted for TPC30AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC30AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC30AHM3_A/I?
TPC30AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC30AHM3_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 TPC30AHM3_A/I?
For technical support, including TPC30AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC30AHM3_A/I requirements.
6.How does Aetrix verify that TPC30AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All TPC30AHM3_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 TPC30AHM3_A/I meets industry standards.
7.What is the process for return or replacement of TPC30AHM3_A/I?
All TPC30AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPC30AHM3_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 TPC30AHM3_A/I part is unused and in its original packaging.
Return procedure for TPC30AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC30AHM3_A/I Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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D5V0H1B2LP-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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