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Vishay General Semiconductor - Diodes Division TPC30AHM3_A/H
- Part No.:
- TPC30AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC30AHM3_A/H.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:924
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Product details
Overview
TPC30AHM3_A/H from Vishay General Semiconductor is a unidirectional 1500 W transient voltage suppressor (TVS) in TO-277A (SMPC) package, designed for robust overvoltage protection of sensitive electronics. It features a 28.5 V to 31.5 V breakdown voltage (VBR), 25.6 V stand-off voltage (VWM), 41.4 V clamping voltage at 36.2 A peak pulse current, and AEC-Q101 qualification for automotive use.
For engineers reviewing the TPC30AHM3_A/H datasheet, TPC30AHM3_A/H pinout, TPC30AHM3_A/H application, or TPC30AHM3_A/H equivalent, key selection criteria include unidirectional clamping performance, 185 °C junction temperature capability, low-profile 1.1 mm height, MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on automotive and industrial PCBs.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver fast response time and low incremental surge resistance. Its unidirectional architecture enables precise clamping during positive transients while maintaining low leakage (<1 μA at VWM) at 25 °C and <10 μA at 150 °C.
The device operates across -65 °C to +185 °C junction temperature range and meets JESD201 Class 2 whisker test requirements. Its TO-277A package supports high-reliability mounting with matte tin-plated terminals solderable per J-STD-002 and JESD22-B102.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 28.5 V / 31.5 V - ensures reliable breakdown initiation above system operating voltage with margin against false triggering |
| VWM | 25.6 V - maximum continuous reverse working voltage compatible with 24 V automotive and industrial bus systems |
| VC @ IPPM | 41.4 V - clamping voltage limits downstream IC/MOSFET stress during 10/1000 µs surges up to 1500 W |
| IPPM | 36.2 A - peak pulse current handling capacity under standardized 10/1000 µs waveform per IEC 61000-4-5 |
| TJ max. | +185 °C - enables operation in under-hood automotive environments and high-power industrial enclosures |
| Package | TO-277A (SMPC) - ultra-low profile (1.1 mm typical height), surface-mount, AEC-Q101 qualified, MSL Level 1 |
| Polarity | Unidirectional - protects against positive-going transients only; requires correct orientation in series with protected line |
Pinout & Package
TPC30AHM3_A/H is housed in a 3-terminal TO-277A (SMPC) package with cathode-anode-cathode configuration. The package has a 1.1 mm typical height, JEDEC-compliant outline, and matte tin-plated leads for reliable reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 (Cathode) | Reverse-biased terminal | Connected to protected line; conducts during overvoltage events to clamp voltage to VC |
| Terminal 2 (Anode) | Reference/ground connection | Typically tied to system ground or low-impedance return path; completes clamping current path |
| Terminal 3 (Cathode) | Reverse-biased terminal | Electrically identical to Terminal 1; enables dual-cathode layout for symmetric PCB routing and thermal distribution |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation optimized design | Enables stable VBR and low leakage over lifetime and temperature cycling in harsh environments |
| AEC-Q101 qualification | Validates reliability for automotive applications including engine control units, body electronics, and ADAS sensors |
| MSL Level 1 rating | Permits unlimited floor life and standard reflow without baking, simplifying SMT manufacturing flow |
| 185 °C maximum junction temperature | Supports operation in high-ambient-temperature locations such as powertrain modules and industrial motor drives |
| Very low profile (1.1 mm) | Reduces board stack height and improves mechanical robustness in space-constrained modules |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V supply rails in engine control units (ECUs) and body control modules (BCMs) from load dump and inductive switching transients. IC Role / Device Role: Unidirectional TVS placed in series with power input to clamp transients before they reach DC-DC converters and microcontrollers. Use Value: Limits clamped voltage to 41.4 V at 36.2 A, preventing damage to downstream 36 V-rated components while meeting ISO 7637-2 Pulse 5a requirements. |
Use Scenario: Safeguarding analog sensor signal lines (e.g., pressure, temperature) in factory automation equipment exposed to relay coil flyback and ESD. IC Role / Device Role: TVS mounted directly at connector entry point to shunt fast transients before reaching precision ADC inputs or op-amp front-ends. Use Value: Sub-100 ns response time and 25.6 V VWM ensure signal integrity remains intact during normal operation while suppressing >1 kV transients. |
| Telecom Power Supply Input | Consumer Device USB/Power Port Protection |
Use Scenario: Securing primary-side inputs of telecom AC/DC adapters and PoE injectors against lightning-induced surges on AC mains or Ethernet cables. IC Role / Device Role: First-stage TVS on bulk input rail, coordinated with MOVs and gas discharge tubes for staged surge suppression. Use Value: 1500 W peak power rating and 41.4 V clamping enable coordination with secondary-stage protectors without overstressing downstream components. |
Use Scenario: Hardening USB-C and barrel jack inputs of portable medical monitors and smart home hubs against user-handling ESD and accidental 24 V misconnection. IC Role / Device Role: Unidirectional TVS placed between input and DC-DC regulator to prevent latch-up and gate oxide damage in PMICs. Use Value: 1.1 mm profile allows placement adjacent to connectors without interfering with shield cans or mechanical enclosures. |
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 | DO-214AC package; 30 V VWM, 48.4 V VC @ 31.3 A; 400 W PPPM; not AEC-Q101 qualified | Limited to commercial/industrial use; lower clamping performance and power rating than TPC30AHM3_A/H | Choose SMAJ30A only for cost-sensitive non-automotive designs where 400 W surge capacity suffices. |
| TPC33AHM3_A/H | Higher VBR (31.4–34.7 V); VWM = 28.2 V; VC = 45.7 V @ 32.8 A; same package and AEC-Q101 qualification | Better suited for 28 V nominal systems or where higher VWM margin is required against ripple and tolerance stack-up | Select TPC33AHM3_A/H when protecting 28 V aerospace or heavy-duty vehicle subsystems needing wider standoff margin. |
Compared with SMAJ30A and TPC33AHM3_A/H, the TPC30AHM3_A/H offers optimal balance of 25.6 V VWM, 41.4 V clamping, and 1500 W surge capacity in an AEC-Q101-qualified TO-277A package-making it ideal for 24 V automotive power domains requiring both reliability and compactness.
Availability
TPC30AHM3_A/H is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, telecom power supplies, and consumer USB/power port protection requiring stable component supply and long-term lifecycle support.
Supply support for TPC30AHM3_A/H 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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The TPC30AHM3_A/H belongs to Vishay's PAR® series of high-power surface-mount TVS diodes, engineered specifically for demanding automotive and industrial transient suppression where AEC-Q101 compliance, thermal resilience, and low-profile packaging are critical.
FAQ
What is the maximum clamping voltage of the TPC30AHM3_A/H under standard 10/1000 µs surge conditions?
The TPC30AHM3_A/H exhibits a maximum clamping voltage (VC) of 41.4 V when subjected to its rated peak pulse current of 36.2 A under the standardized 10/1000 µs waveform. This value is measured per IEC 61000-4-5 and ensures downstream components remain within safe voltage limits during transient events. The TPC30AHM3_A/H maintains this clamping performance across its full operating temperature range.
Is the TPC30AHM3_A/H suitable for automotive applications, and what qualifications does it hold?
Yes, the TPC30AHM3_A/H is explicitly qualified to AEC-Q101 for automotive use and rated for junction temperatures up to +185 °C-meeting requirements for under-hood and powertrain applications. It also passes JESD201 Class 2 whisker testing and MSL Level 1 per J-STD-020, confirming suitability for high-reliability automotive electronics. The TPC30AHM3_A/H is listed in Vishay's automotive-grade product portfolio.
What does the "HM3_A/H" suffix indicate in the TPC30AHM3_A/H part number?
The "HM3" denotes Vishay's halogen-free, RoHS-compliant, AEC-Q101-qualified TO-277A package variant; "A" is the revision code; and "H" specifies the preferred packaging format: 7-inch plastic tape and reel with 1500 units per reel. This suffix confirms the TPC30AHM3_A/H meets environmental, reliability, and logistics requirements for high-volume automotive and industrial production.
How does the dual-cathode configuration of the TPC30AHM3_A/H affect PCB layout and thermal performance?
The TO-277A package of the TPC30AHM3_A/H features two electrically parallel cathode terminals (Pins 1 and 3) and one anode (Pin 2), enabling symmetrical PCB pad layout that improves current sharing and thermal dissipation. This configuration reduces localized heating during surge events and supports tighter trace routing near connectors-critical for maintaining signal integrity in compact automotive modules. The TPC30AHM3_A/H benefits from this layout in both electrical and thermal domains.
Can the TPC30AHM3_A/H replace older TVS diodes like P6KE30A in existing designs?
No-the TPC30AHM3_A/H is not a direct replacement for through-hole devices like P6KE30A due to fundamental differences in package (TO-277A vs. DO-15), mounting method (SMT vs. thru-hole), and thermal behavior. While both offer ~30 V VBR, the TPC30AHM3_A/H delivers 1500 W surge capability versus 600 W for P6KE30A and requires updated PCB layout. Migration to TPC30AHM3_A/H necessitates redesign, not drop-in substitution.
TPC30AHM3_A/H 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/H FAQ
1.How can I place an order for TPC30AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC30AHM3_A/H 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/H reliable?
The price and inventory of TPC30AHM3_A/H 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/H is usually 5 days.
3.What payment methods are accepted for TPC30AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC30AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC30AHM3_A/H?
TPC30AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC30AHM3_A/H 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/H?
For technical support, including TPC30AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC30AHM3_A/H requirements.
6.How does Aetrix verify that TPC30AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All TPC30AHM3_A/H 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/H meets industry standards.
7.What is the process for return or replacement of TPC30AHM3_A/H?
All TPC30AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPC30AHM3_A/H, 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/H part is unused and in its original packaging.
Return procedure for TPC30AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC30AHM3_A/H Tags
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DESD3V3E1BL-7B
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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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Toshiba Semiconductor and Storage
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Diodes Incorporated
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