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Vishay General Semiconductor - Diodes Division TPC15AHM3_A/I
- Part No.:
- TPC15AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC15AHM3_A/I.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:9,999
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Product details
Overview
TPC15AHM3_A/I from Vishay General Semiconductor is a unidirectional 1500 W transient voltage suppressor (TVS) in TO-277A (SMPC) package, with breakdown voltage 14.3–15.8 V at 1 mA, clamping voltage 21.2 V at 70.8 A peak pulse current, and junction temperature rating up to +185 °C. It protects MOSFETs, ICs, and sensor signal lines in automotive and industrial power electronics against inductive switching transients.
For engineers reviewing the TPC15AHM3_A/I datasheet, TPC15AHM3_A/I pinout, TPC15AHM3_A/I application, or TPC15AHM3_A/I equivalent, key selection criteria include unidirectional polarity, 12.8 V stand-off voltage, AEC-Q101 qualification, MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on high-reliability PCBs.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology optimized for low incremental surge resistance and fast response time (<1 ns), enabling effective suppression of ESD and lightning-induced transients per IEC 61000-4-2/4-5. Its 185 °C maximum junction temperature supports under-hood automotive deployment without derating.
The device operates exclusively in unidirectional mode and is not rated for bidirectional surge protection. Its TO-277A (SMPC) package features matte tin-plated terminals compliant with J-STD-002 and JESD 22-B102, and meets UL 94 V-0 flammability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 14.3 V / 15.8 V at 1 mA - defines reliable avalanche initiation threshold for overvoltage clamping |
| VWM | 12.8 V - maximum continuous reverse operating voltage before leakage rises significantly |
| VC @ IPPM | 21.2 V at 70.8 A - clamped voltage during 10/1000 µs surge, limiting stress on downstream components |
| PPPM | 1500 W - peak pulse power handling capability under standardized 10/1000 µs waveform |
| TJ max. | +185 °C - enables operation in high-temperature environments including automotive engine compartments |
| Polarity | Unidirectional - blocks reverse current only; requires correct orientation in circuit relative to DC bias |
| MSL Level | Level 1 per J-STD-020 - no floor life limitation; safe for standard reflow without dry pack or baking |
Pinout & Package
TO-277A (SMPC) surface-mount package: 3-terminal configuration with dual cathodes and shared anode; height ≈ 1.1 mm; JEDEC-compliant outline; halogen-free, RoHS-compliant, AEC-Q101 qualified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 3) | Common anode connection | DC reference node; connects to system ground or low-side return path in unidirectional clamp topology |
| Cathode 1 (Pin 1) | First cathode terminal | Provides parallel current path during transient; shares conduction with Cathode 2 to distribute surge energy |
| Cathode 2 (Pin 2) | Second cathode terminal | Enables higher surge current handling vs. single-cathode devices; reduces localized thermal stress |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier design ensures stable VBR over lifetime and temperature cycling |
| Low profile height | 1.1 mm typical - enables use in space-constrained modules such as ADAS ECUs and motor control inverters |
| AEC-Q101 qualification | Validated for automotive-grade reliability including HTOL, TC, and HTRB testing per stress test conditions |
| Fast response time | <1 ns - clamps transients before sensitive logic or gate drivers are damaged |
| Low incremental surge resistance | Minimizes VC rise under high di/dt events, improving protection margin for 12 V/24 V systems |
Applications
| Automotive Power Distribution | Industrial Motor Drive Protection |
|---|---|
Use Scenario: Protecting gate drivers and microcontrollers in 12 V/24 V battery-fed power distribution units subject to load dump and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed across MOSFET drain-source or supply rail inputs. Use Value: Limits transient voltage to ≤21.2 V during 70.8 A surges, preventing latch-up or oxide breakdown in automotive-grade MCUs. | Use Scenario: Safeguarding encoder interface lines and analog sensor inputs in servo drives exposed to back-EMF from brushed/BLDC motors. IC Role / Device Role / Timing Role: Signal-line TVS connected between differential pair and ground, with VWM = 12.8 V matching common-mode range. Use Value: Clamps ESD and switching noise below 21.2 V while maintaining <1 μA leakage at 12.8 V, preserving signal integrity. |
| Telecom Power Supply Input | Consumer Appliance Control Board |
Use Scenario: Front-end protection for AC/DC adapter secondary-side outputs feeding PoE-powered equipment or base station RF modules. IC Role / Device Role / Timing Role: Primary surge limiter on 12–15 V DC output rail upstream of DC-DC converters. Use Value: Handles 1500 W pulses without degradation, supporting IEC 61000-4-5 Level 4 compliance with minimal board area. | Use Scenario: Overvoltage protection for microcontroller I/O pins and relay driver circuits in washing machine or HVAC main control boards. IC Role / Device Role / Timing Role: Point-of-load TVS on 5 V/12 V rails driving solenoids, displays, and communication interfaces. Use Value: AEC-Q101 qualification ensures long-term stability in thermally cycled environments; MSL Level 1 simplifies manufacturing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ15A | Same VWM (12.8 V) and VC (24.4 V), but lower PPPM (600 W); DO-214AA package, higher profile (2.3 mm) | 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 |
| TPC15AHM3_A/H | Identical electrical specs and TO-277A package; differs only in tape-and-reel packaging (7" vs. 13" reel, 1500 vs. 6500 pcs) | No functional difference; same PCB layout, thermal performance, and reliability | Choose for smaller batch prototyping or where feeder compatibility favors 7" reels |
Compared with SMBJ15A and TPC15AHM3_A/H, the TPC15AHM3_A/I delivers full 1500 W surge capability in ultra-low-profile packaging with automotive-grade qualification-making it optimal for high-density, high-reliability designs where both energy handling and mounting height matter.
Availability
TPC15AHM3_A/I is available at Aetrix Electronics and suitable for automotive power distribution, industrial motor drive protection, and telecom power supply input applications requiring stable component supply, AEC-Q101 compliance, and consistent TO-277A packaging.
Supply support for TPC15AHM3_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 was developed specifically for high-power, high-temperature transient suppression in automotive and industrial systems-prioritizing AEC-Q101 qualification, low-profile packaging, and robust clamping performance under repetitive surge stress.
FAQ
What is the maximum clamping voltage of the TPC15AHM3_A/I under a 10/1000 µs surge?
The TPC15AHM3_A/I has a maximum clamping voltage (VC) of 21.2 V when subjected to its rated peak pulse current of 70.8 A under the standardized 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and ensures predictable overvoltage limiting for protected circuits. The TPC15AHM3_A/I maintains this clamping performance across its full operating temperature range.
Is the TPC15AHM3_A/I suitable for bidirectional transient protection?
No, the TPC15AHM3_A/I is a unidirectional TVS diode and is not rated for bidirectional surge suppression. Its electrical characteristics-including breakdown voltage, clamping behavior, and leakage-are specified only for reverse-biased operation. For bidirectional protection, a dedicated symmetric device such as the SMAJ15CA must be used instead of the TPC15AHM3_A/I.
Does the TPC15AHM3_A/I require special handling during PCB assembly?
No special handling is required for the TPC15AHM3_A/I during PCB assembly. It is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life and can undergo standard lead-free reflow profiles without pre-baking. Its TO-277A package is compatible with automated pick-and-place systems and exhibits excellent solderability per J-STD-002 and JESD 22-B102.
What is the significance of the "HM3" suffix in TPC15AHM3_A/I?
"HM3" denotes Vishay's halogen-free, RoHS-compliant, and AEC-Q101-qualified variant of the TPC15A series. The "A" indicates revision level, and "I" specifies 13-inch tape-and-reel packaging with 6500 units per reel. All HM3-suffix parts meet JESD 201 Class 2 whisker resistance and UL 94 V-0 flammability standards-key requirements for automotive and industrial deployments of the TPC15AHM3_A/I.
How does the TPC15AHM3_A/I compare to standard SMAJ15A in terms of surge capability?
The TPC15AHM3_A/I delivers 1500 W peak pulse power, more than double the 600 W rating of the SMAJ15A. It also features a lower clamping voltage (21.2 V vs. 24.4 V at rated current) and superior thermal robustness (TJ max = +185 °C vs. +150 °C). These advantages make the TPC15AHM3_A/I better suited for demanding automotive and industrial applications where sustained surge energy and high ambient temperatures are present.
TPC15AHM3_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):
- 12.8V
- Voltage - Breakdown (Min):
- 14.3V
- Voltage - Clamping (Max) @ Ipp:
- 21.2V
- Current - Peak Pulse (10/1000µs):
- 70.8A
- 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)
TPC15AHM3_A/I FAQ
1.How can I place an order for TPC15AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC15AHM3_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 TPC15AHM3_A/I reliable?
The price and inventory of TPC15AHM3_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 TPC15AHM3_A/I is usually 5 days.
3.What payment methods are accepted for TPC15AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC15AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC15AHM3_A/I?
TPC15AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC15AHM3_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 TPC15AHM3_A/I?
For technical support, including TPC15AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC15AHM3_A/I requirements.
6.How does Aetrix verify that TPC15AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All TPC15AHM3_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 TPC15AHM3_A/I meets industry standards.
7.What is the process for return or replacement of TPC15AHM3_A/I?
All TPC15AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPC15AHM3_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 TPC15AHM3_A/I part is unused and in its original packaging.
Return procedure for TPC15AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC15AHM3_A/I Tags
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