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Vishay General Semiconductor - Diodes Division TPC24AHM3/86A
- Part No.:
- TPC24AHM3/86A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC24AHM3/86A.pdf
- Description:
- TVS DIODE 20.5VWM 33.2VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:9,150
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Product details
Overview
TPC24AHM3/86A 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 surge protection. It features a breakdown voltage of 22.8–25.2 V at 1 mA, clamping voltage of 33.2 V at 45.2 A peak pulse current, and operates up to +185 °C junction temperature.
For engineers reviewing the TPC24AHM3/86A datasheet, TPC24AHM3/86A pinout, TPC24AHM3/86A application, or TPC24AHM3/86A equivalent, key selection criteria include unidirectional polarity, 20.5 V stand-off voltage, AEC-Q101 qualification, low-profile 1.1 mm height, and MSL Level 1 moisture sensitivity rating.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to achieve low incremental surge resistance and fast response time under transient events. Its junction passivation enables stable operation at TJ = 185 °C, supporting automotive-grade thermal cycling and long-term reliability in harsh environments.
The device is rated for 1500 W peak pulse power with a 10/1000 µs waveform and exhibits a typical temperature coefficient of VBR at 0.085 %/°C. Clamping performance is specified at IPPM = 45.2 A, delivering VC = 33.2 V - critical for protecting downstream MOSFETs and ICs from inductive switching transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 22.8 / 24.0 / 25.2 V at IT = 1 mA - defines reliable turn-on threshold before clamping begins |
| VWM | 20.5 V - maximum continuous reverse voltage the device blocks without leakage exceeding 1 µA |
| VC @ IPPM | 33.2 V at 45.2 A - clamped voltage during worst-case 10/1000 µs surge, limiting stress on protected circuitry |
| PPPM | 1500 W - peak pulse power handling capability per single 10/1000 µs transient event |
| TJ max | +185 °C - enables use in under-hood automotive modules and high-temperature industrial controls |
| Polarity | Unidirectional - protects against positive-going transients only; requires correct orientation in series with signal/power line |
| Package | SMPC (TO-277A) - surface-mount, 3-terminal, low-profile (1.1 mm height), AEC-Q101 qualified |
Pinout & Package
TPC24AHM3/86A uses the SMPC (TO-277A) package: a 3-terminal surface-mount case with cathode band marking on terminal 1 and 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 |
|---|---|---|
| 1 (Cathode) | Transient current sink path | Connected to protected line; conducts surge current to ground when VLINE > VBR |
| 2 (Cathode) | Parallel cathode connection | Internally tied to Pin 1; provides redundant low-inductance path for high-current surges |
| 3 (Anode) | Reference/ground return | Connected to system ground; completes clamping loop during overvoltage event |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation optimized design | Enables stable 185 °C operation and long-term reliability in automotive under-hood applications |
| Very low profile (1.1 mm typical height) | Reduces board space and improves mechanical robustness in compact, vibration-prone assemblies |
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTGB, HTRB, and temperature cycling |
| Meets MSL Level 1 (per J-STD-020) | Allows unlimited floor life and reflow compatibility without dry-pack or baking preconditioning |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (<1 ns rise time) |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V supply rails in body control modules from load-dump and inductive switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and DC-DC input to clamp surges above 33.2 V. Use Value: Prevents damage to downstream PMICs and microcontrollers during ISO 7637-2 Pulse 1/2a/5a events. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) connected to PLC I/O modules. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to shunt ESD and cable discharge events before reaching ADC front-end. Use Value: Maintains signal integrity by limiting transient-induced offset errors and preventing latch-up in precision amplifiers. |
| Automotive Lighting Driver Protection | Telecom DC Power Feeding Protection |
Use Scenario: Shielding LED driver ICs in headlamp modules from back-EMF generated by relay or MOSFET switching. IC Role / Device Role / Timing Role: TVS placed across driver output to clamp negative flyback spikes and positive switching transients. Use Value: Extends LED driver lifetime by suppressing repetitive 1500 W surges without degradation over 10,000+ cycles. | Use Scenario: Protecting PoE-powered equipment (e.g., IP cameras, wireless APs) from surges on 48 V DC feeding lines. IC Role / Device Role / Timing Role: Unidirectional TVS installed on DC input side of PD controller to absorb induced lightning surges. Use Value: Ensures compliance with IEC 61000-4-5 Level 3 (2 kV line-earth) while maintaining <100 ns response time. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A-E3/57T (Vishay) | Same VBR range (22.8–25.2 V), but lower PPPM = 400 W and SMA package (higher thermal resistance) | Limited to lower-energy transients; unsuitable for automotive load-dump where 1500 W is required | Select TPC24AHM3/86A when peak surge energy exceeds 400 W or AEC-Q101 qualification is mandatory |
| TPC24AHM3/6A (Vishay) | Identical electrical specs and package, but HM3/6A denotes different revision code and tape/reel packaging (6500 pcs vs. 86A's 1500 pcs) | No functional difference; differs only in delivery format and traceability batch coding | Choose TPC24AHM3/86A for smaller-batch prototyping or JIT assembly requiring 7" reel delivery |
Compared with SMAJ24A-E3/57T and TPC24AHM3/6A, the TPC24AHM3/86A delivers full 1500 W surge capacity in an AEC-Q101-qualified, low-profile SMPC package - making it uniquely suited for automotive power-line protection where both energy handling and reliability certification are non-negotiable.
Availability
TPC24AHM3/86A is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interfaces, lighting driver circuits, and telecom DC feeding systems requiring stable component supply with full AEC-Q101 traceability and RoHS/halogen-free compliance.
Supply support for TPC24AHM3/86A 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 optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The TPC24AHM3/86A belongs to Vishay's eSMP® PAR® series of high-power TVS diodes, engineered specifically for automotive and industrial environments demanding AEC-Q101 qualification, 185 °C operation, and robust 1500 W surge immunity.
FAQ
What is the clamping voltage of the TPC24AHM3/86A at its rated peak pulse current?
The TPC24AHM3/86A has a maximum clamping voltage (VC) of 33.2 V at its rated peak pulse current (IPPM) of 45.2 A, measured under the standard 10/1000 µs waveform. This value ensures downstream components like MOSFETs and microcontrollers remain within safe operating limits during transient events. The TPC24AHM3/86A achieves this performance using low incremental surge resistance and optimized junction passivation.
Is the TPC24AHM3/86A qualified for automotive applications?
Yes, the TPC24AHM3/86A is AEC-Q101 qualified and rated for operation up to +185 °C junction temperature, making it suitable for under-hood automotive applications such as body control modules, lighting drivers, and power distribution units. Its SMPC (TO-277A) package meets MSL Level 1 and is halogen-free, RoHS-compliant - all verified per Vishay's qualification report for the TPC24AHM3/86A.
What does the "HM3/86A" suffix indicate in TPC24AHM3/86A?
The "HM3/86A" suffix in TPC24AHM3/86A identifies the package variant and reel configuration: HM3 denotes the halogen-free, RoHS-compliant, AEC-Q101-qualified SMPC (TO-277A) package, while "86A" specifies the preferred ordering option - 1500 pieces per 7-inch plastic tape-and-reel with standard carrier tape specifications. This matches Vishay's documented ordering information for the TPC24AHM3/86A.
How does the TPC24AHM3/86A differ from the TPC24AHM3/6A?
The TPC24AHM3/86A and TPC24AHM3/6A share identical electrical specifications, thermal ratings, and SMPC (TO-277A) package construction. The only difference lies in packaging logistics: TPC24AHM3/86A ships in 1500-piece 7-inch reels, whereas TPC24AHM3/6A uses 6500-piece 13-inch reels. Both carry the same AEC-Q101 qualification and revision-level reliability data for the TPC24AHM3/86A.
Can the TPC24AHM3/86A be used in bidirectional protection circuits?
No, the TPC24AHM3/86A is strictly unidirectional and designed to protect against positive-going transients only. It must be oriented with cathodes (Pins 1 and 2) toward the protected line and anode (Pin 3) to ground. For bidirectional protection, a separate device such as the TPD24AHM3/86A (if available) or a dual-diode configuration would be required - the TPC24AHM3/86A does not support reverse-polarity clamping.
TPC24AHM3/86A 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):
- 20.5V
- Voltage - Breakdown (Min):
- 22.8V
- Voltage - Clamping (Max) @ Ipp:
- 33.2V
- Current - Peak Pulse (10/1000µs):
- 45.2A
- 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)
TPC24AHM3/86A FAQ
1.How can I place an order for TPC24AHM3/86A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC24AHM3/86A 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 TPC24AHM3/86A reliable?
The price and inventory of TPC24AHM3/86A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPC24AHM3/86A is usually 5 days.
3.What payment methods are accepted for TPC24AHM3/86A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC24AHM3/86A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC24AHM3/86A?
TPC24AHM3/86A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC24AHM3/86A 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 TPC24AHM3/86A?
For technical support, including TPC24AHM3/86A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC24AHM3/86A requirements.
6.How does Aetrix verify that TPC24AHM3/86A is sourced from the original manufacturer or authorized distributors?
All TPC24AHM3/86A 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 TPC24AHM3/86A meets industry standards.
7.What is the process for return or replacement of TPC24AHM3/86A?
All TPC24AHM3/86A units undergo pre-shipment inspection (PSI). If there is an issue with TPC24AHM3/86A, 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 TPC24AHM3/86A part is unused and in its original packaging.
Return procedure for TPC24AHM3/86A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC24AHM3/86A Tags
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