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Vishay General Semiconductor - Diodes Division TPC24HM3/86A
- Part No.:
- TPC24HM3/86A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC24HM3/86A.pdf
- Description:
- TVS DIODE 19.4VWM 34.7VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:9,437
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Product details
Overview
TPC24HM3/86A 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 24.0 V nominal breakdown voltage (VBR), 20.5 V stand-off voltage (VWM), 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 TPC24HM3/86A datasheet, TPC24HM3/86A pinout, TPC24HM3/86A application, or TPC24HM3/86A equivalent, key selection criteria include its AEC-Q101 qualification, low-profile 1.1 mm height, MSL Level 1 rating, unidirectional polarity, and suitability for protecting MOSFETs, sensor signal lines, and IC power rails against inductive switching transients.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology with optimized junction passivation, enabling stable clamping performance under repetitive surge stress. Its 185 °C maximum junction temperature supports operation in under-hood automotive environments and high-power industrial control modules.
The device uses a 10/1000 μs waveform test condition per ANSI/IEEE C62.35, delivering 1500 W peak pulse power with low incremental surge resistance and sub-nanosecond response time. Its SMPC (TO-277A) package provides robust thermal dissipation while maintaining compatibility with automated SMT placement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (Nominal) | 24.0 V - Ensures reliable triggering above system operating voltage while avoiding false clamping during normal operation |
| VWM | 20.5 V - Maximum continuous reverse working voltage compatible with 24 V nominal supply rails |
| VC @ IPPM | 33.2 V - Clamping voltage limits downstream component stress during 45.2 A transient events |
| PPPM | 1500 W - Handles high-energy surges from inductive load switching without degradation |
| TJ max. | +185 °C - Enables use in engine control units and powertrain modules without derating |
| Package | SMPC (TO-277A) - Low-profile 3-pin surface-mount package with matte tin-plated leads, J-STD-002 solderable |
| AEC-Q101 | Qualified - Meets automotive-grade reliability requirements for production vehicle applications |
Pinout & Package
TPC24HM3/86A is housed in the SMPC (TO-277A) package: a 3-terminal surface-mount case with cathode band marking on terminal 1, cathode on terminal 2, and anode on terminal 3. Dimensions are 4.80 × 3.70 × 1.10 mm (L × W × H), with recommended PCB pad layout per JEDEC TO-277A standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode Band) | Cathode | Primary cathode connection; marked side identifies polarity for correct orientation during placement |
| 2 | Cathode | Second cathode terminal - parallel-connected internally with Pin 1 to reduce inductance and improve surge handling |
| 3 | Anode | Common anode node; connects to ground or low-impedance return path for effective clamping |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier process ensures stable VBR over lifetime and temperature cycling |
| Low profile height | 1.1 mm typical - enables use in space-constrained modules such as ADAS camera ECUs and motor drivers |
| MSL Level 1 | No floor life limitation - supports unlimited exposure before reflow, simplifying manufacturing logistics |
| Halogen-free & RoHS | HM3 suffix confirms compliance with environmental regulations and whisker resistance (JESD 201 Class 2) |
| Fast response time | < 1 ns - clamps transients before sensitive logic or analog circuitry sustains damage |
Applications
| Automotive Engine Control Unit (ECU) | Industrial Motor Drive Power Stage |
|---|---|
Use Scenario: Protection of microcontroller I/O and CAN transceiver power rails against load dump and alternator ripple. IC Role / Device Role: Unidirectional TVS placed between 24 V supply and ground to clamp positive-going transients. Use Value: Withstands 1500 W surges while limiting clamped voltage to 33.2 V, preserving 3.3 V/5 V logic integrity downstream. |
Use Scenario: Guarding gate drivers and current-sense amplifiers from inductive kickback during MOSFET switching. IC Role / Device Role: Parallel-connected across DC bus or gate drive supply to absorb energy from flyback diodes and snubbers. Use Value: Dual-cathode configuration lowers effective series inductance, improving clamping fidelity for fast 100 ns–1 μs spikes. |
| Automotive Camera Module | Telecom Base Station Power Interface |
Use Scenario: Shielding image sensor data lines (e.g., MIPI CSI-2) and power inputs from ESD and cable discharge events. IC Role / Device Role: Point-of-load TVS on 12 V bias rail and coaxial power-over-FPD-Link lines. Use Value: AEC-Q101 qualification and 185 °C rating ensure reliability in sealed, thermally isolated camera housings. |
Use Scenario: Safeguarding 48 V telecom power entry points against lightning-induced surges and AC line faults. IC Role / Device Role: Primary front-end TVS on DC input stage before DC/DC converters and hot-swap controllers. Use Value: 1500 W rating and low VC/VBR ratio (1.38) provide margin for repeated surge events without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A | Lower PPPM (400 W), SMA package (higher thermal resistance), no AEC-Q101 qualification | Suitable for non-automotive consumer or industrial boards where surge energy is lower and qualification not required | Select when cost sensitivity outweighs automotive reliability needs and surge levels remain below 400 W |
| TPC24HM3_A | Same electrical specs and SMPC package; differs only in reel packaging code (A vs. 86A) and revision marking | Identical functional replacement; 86A denotes specific tape-and-reel configuration (13" reel, 6500 pcs) per Vishay ordering guide | Use TPC24HM3_A for alternate packaging; both share identical die, qualification, and performance |
Compared with SMAJ24A and TPC24HM3_A, the TPC24HM3/86A delivers higher surge robustness (1500 W vs. 400 W) and automotive qualification, while differing from TPC24HM3_A only in packaging logistics-not in electrical or mechanical behavior-making it ideal for volume automotive production with traceable reel-level sourcing.
Availability
TPC24HM3/86A is available at Aetrix Electronics and suitable for automotive engine control units, industrial motor drives, ADAS camera modules, and telecom power interfaces requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for TPC24HM3/86A 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 high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The TPC24HM3/86A belongs to Vishay's PAR® family of high-power TVS diodes, engineered specifically for AEC-Q101-compliant surge protection in harsh-environment applications where thermal stability and repeatable clamping are critical.
FAQ
What is the exact breakdown voltage tolerance for TPC24HM3/86A?
The TPC24HM3/86A has a specified breakdown voltage (VBR) range of 22.8 V (min) to 25.2 V (max) at 1.0 mA test current, with a nominal value of 24.0 V. This ±5% tolerance ensures predictable clamping onset across production lots and temperature extremes, supporting robust design margins in 24 V systems.
Is TPC24HM3/86A pin-compatible with other devices in the TPCxxA series?
Yes - all TPCxxA devices, including TPC24HM3/86A, share identical SMPC (TO-277A) package dimensions, pinout (cathode-cathode-anode), and mounting footprint. This allows direct substitution within the same voltage grade group when board layout accommodates the specific VWM/VBR requirements.
Does TPC24HM3/86A support bidirectional transient suppression?
No - TPC24HM3/86A is strictly unidirectional. It conducts only during positive transients relative to its anode and cannot suppress negative-going surges. For bidirectional protection, a separate device such as the SMBJ24CA or dual-diode array would be required.
What is the meaning of the "86A" suffix in TPC24HM3/86A?
The "86A" suffix in TPC24HM3/86A indicates a specific packaging variant: 13-inch diameter plastic tape-and-reel with 6500 units per reel (per Vishay ordering information). It does not reflect electrical or qualification differences - the die, SMPC package, and AEC-Q101 status are identical to TPC24HM3_A.
How does the dual-cathode configuration of TPC24HM3/86A improve surge performance?
The dual-cathode structure (Pins 1 and 2) reduces total package inductance by providing parallel current paths during transient conduction. This lowers the effective VC overshoot during fast-rising surges (< 100 ns), enhancing protection for high-speed digital interfaces and gate drivers connected to the same rail as TPC24HM3/86A.
TPC24HM3/86A 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):
- 19.4V
- Voltage - Breakdown (Min):
- 21.6V
- Voltage - Clamping (Max) @ Ipp:
- 34.7V
- Current - Peak Pulse (10/1000µs):
- 43.2A
- 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)
TPC24HM3/86A FAQ
1.How can I place an order for TPC24HM3/86A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC24HM3/86A 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 TPC24HM3/86A reliable?
The price and inventory of TPC24HM3/86A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPC24HM3/86A is usually 5 days.
3.What payment methods are accepted for TPC24HM3/86A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC24HM3/86A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC24HM3/86A?
TPC24HM3/86A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC24HM3/86A 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 TPC24HM3/86A?
For technical support, including TPC24HM3/86A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC24HM3/86A requirements.
6.How does Aetrix verify that TPC24HM3/86A is sourced from the original manufacturer or authorized distributors?
All TPC24HM3/86A 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 TPC24HM3/86A meets industry standards.
7.What is the process for return or replacement of TPC24HM3/86A?
All TPC24HM3/86A units undergo pre-shipment inspection (PSI). If there is an issue with TPC24HM3/86A, 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 TPC24HM3/86A part is unused and in its original packaging.
Return procedure for TPC24HM3/86A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC24HM3/86A Tags
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