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Vishay General Semiconductor - Diodes Division TPC27HM3/86A
- Part No.:
- TPC27HM3/86A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC27HM3/86A.pdf
- Description:
- TVS DIODE 21.8VWM 39.1VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:8,922
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Product details
Overview
TPC27HM3/86A 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 electronics protection. It features a 27.0 V nominal breakdown voltage (VBR), 23.1 V stand-off voltage (VWM), clamping voltage of 37.5 V at 40.0 A peak pulse current, and operates up to +185 °C junction temperature.
For engineers reviewing the TPC27HM3/86A datasheet, TPC27HM3/86A pinout, TPC27HM3/86A application, or TPC27HM3/86A equivalent, key selection criteria include its AEC-Q101 qualification, low-profile 1.1 mm height, MSL Level 1 rating, unidirectional polarity, and suitability for inductive load switching surge suppression on power rails and signal lines.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for fast response (<1 ns) and low incremental surge resistance, enabling robust clamping during 10/1000 µs transients. Its thermal design supports continuous operation at TJ = 185 °C, making it suitable for under-hood automotive environments and high-temperature industrial control units.
The device uses a three-terminal SMPC (TO-277A) configuration with dual cathodes and a common anode, delivering symmetrical surge handling across parallel paths while maintaining compact PCB footprint. It meets JESD201 Class 2 whisker resistance and UL 94 V-0 molding compound requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (Nominal) | 27.0 V - Ensures reliable triggering above system operating voltage without false conduction |
| VWM | 23.1 V - Maximum continuous reverse voltage before leakage exceeds 1 µA at 25 °C |
| VC @ IPPM | 37.5 V - Clamped voltage during 40.0 A 10/1000 µs surge, limiting downstream IC stress |
| PPPM | 1500 W - Peak pulse power handling capability per single non-repetitive transient |
| TJ max. | +185 °C - Enables deployment in engine control modules and power converters without derating |
| Polarity | Unidirectional - Protects only against positive-going transients on DC-biased lines |
| Package | SMPC (TO-277A) - 3-pin surface-mount package with 1.1 mm typical height for space-constrained layouts |
Pinout & Package
TPC27HM3/86A is housed in a SMPC (TO-277A) package - a 3-terminal surface-mount case conforming to JEDEC TO-277A outline, with matte tin-plated leads, UL 94 V-0 molding compound, and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Primary cathode terminal | Connected to protected line; forms one half of dual-cathode structure for balanced surge path |
| 2 (Cathode) | Secondary cathode terminal | Parallel cathode path sharing surge current with Pin 1 to reduce localized heating |
| 3 (Anode) | Common anode | Connected to ground or low-impedance return; completes conduction path during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan |
| Junction passivation | Reduces surface leakage and improves long-term stability under humidity and bias stress |
| MSL Level 1 | Unlimited floor life at ≤30 °C / 60 % RH, eliminating bake requirements prior to reflow |
| Low profile (1.1 mm) | Enables use in ultra-thin modules such as ADAS camera ECUs and compact motor drivers |
| Very fast response time | Sub-nanosecond turn-on ensures clamping before sensitive downstream components experience overstress |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Suppressing load-dump and jump-start transients on 24 V battery-fed ECUs in commercial vehicles. IC Role / Device Role: Primary overvoltage clamp on main power input rail upstream of DC/DC converters and microcontrollers. Use Value: Withstands 1500 W surges and clamps to 37.5 V, preventing damage to 3.3 V/5 V logic and analog front-ends. | Use Scenario: Guarding RS-485/RS-232 communication lines in factory automation PLC I/O modules. IC Role / Device Role: Unidirectional TVS placed between signal line and ground to absorb ESD and inductive kickback. Use Value: Low capacitance and 37.5 V clamping protect transceivers without distorting signal integrity at up to 1 Mbps. |
| Motor Drive Gate Driver Protection | Consumer Appliance Power Supply Input |
Use Scenario: Shielding high-side gate drivers in BLDC motor inverters from Miller-induced voltage spikes. IC Role / Device Role: Clamp placed between gate driver output and source node to limit dv/dt-induced overshoot. Use Value: Dual-cathode layout shares surge current, reducing thermal stress on bond wires during repetitive switching events. | Use Scenario: Safeguarding primary-side rectifier and controller ICs in universal-input AC/DC adapters. IC Role / Device Role: Standoff-rated TVS on bulk capacitor input to absorb line surges per IEC 61000-4-5 Level 3. Use Value: 23.1 V VWM allows compatibility with 19–26.4 V nominal 24 VAC-derived supplies while blocking normal ripple. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ28A | Lower PPPM (400 W), SMA package (higher thermal resistance), VC = 45.4 V @ 8.9 A | Not AEC-Q101 qualified; limited to consumer/industrial grade, lower surge margin | Choose when cost sensitivity outweighs automotive qualification and 1500 W surge headroom |
| TPC27HM3/86A | Same family, identical electrical specs and packaging - direct revision variant of TPC27A with HM3 suffix and 86A date code | No functional difference; full drop-in replacement within Vishay's TPC27A series | Select for traceable sourcing, RoHS/halogen-free compliance, and guaranteed AEC-Q101 conformance |
Compared with SMAJ28A and TPC27A, the TPC27HM3/86A delivers higher surge robustness (1500 W vs. 400 W), automotive-grade reliability, and lower clamping voltage - critical for protecting modern 28 V-rated power management ICs in safety-critical systems.
Availability
TPC27HM3/86A is available at Aetrix Electronics and suitable for automotive power distribution units, industrial sensor interface modules, motor drive gate driver circuits, and consumer appliance AC/DC power supplies requiring stable component supply and long-term lifecycle support.
Supply support for TPC27HM3/86A 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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The TPC27HM3/86A belongs to Vishay's PAR® series of high-power TVS diodes, engineered specifically for demanding automotive and industrial surge immunity where AEC-Q101 compliance, high-temperature operation, and low-profile mounting are mandatory.
FAQ
What is the breakdown voltage tolerance for TPC27HM3/86A?
The TPC27HM3/86A has a specified breakdown voltage range of 25.7 V (min) to 28.4 V (max) at 1.0 mA test current, with 27.0 V as the nominal value. This ±5 % tolerance ensures consistent clamping behavior across production lots while allowing margin for temperature drift - the typical temperature coefficient is +0.087 %/°C, meaning VBR increases predictably with junction temperature.
Is TPC27HM3/86A compatible with lead-free reflow processes?
Yes, TPC27HM3/86A is fully compatible with standard lead-free reflow profiles, including JEDEC J-STD-020-compliant peak temperatures up to 260 °C. Its matte tin-plated terminals meet solderability requirements per J-STD-002 and JESD22-B102, and the device is rated MSL Level 1, meaning no dry-pack or baking is required prior to assembly.
How does the dual-cathode configuration of TPC27HM3/86A improve performance?
The dual-cathode (Pins 1 and 2) and common-anode (Pin 3) topology in TPC27HM3/86A provides two parallel surge-current paths, lowering effective dynamic impedance and distributing thermal load during high-energy transients. This architecture reduces localized heating at the bond interface and improves reliability under repetitive surge conditions compared to single-cathode TVS devices of similar rating.
Can TPC27HM3/86A be used in bidirectional protection circuits?
No, TPC27HM3/86A is strictly unidirectional and must not be used for bidirectional transient suppression. Its internal structure supports conduction only from anode to cathode during positive transients. For bidirectional protection, a separate back-to-back configuration using two unidirectional devices or a dedicated bidirectional TVS (e.g., TPD2E001) is required - using TPC27HM3/86A alone will leave negative-going transients unprotected.
What is the maximum clamping voltage of TPC27HM3/86A under surge conditions?
The maximum clamping voltage of TPC27HM3/86A is 37.5 V, measured at 40.0 A peak pulse current with a 10/1000 µs waveform. This value represents worst-case clamping under standardized surge testing and defines the upper voltage limit imposed on protected circuitry - ensuring downstream 3.3 V, 5 V, and 24 V logic and analog components remain within safe operating limits.
TPC27HM3/86A 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):
- 21.8V
- Voltage - Breakdown (Min):
- 24.3V
- Voltage - Clamping (Max) @ Ipp:
- 39.1V
- Current - Peak Pulse (10/1000µs):
- 38.4A
- 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)
TPC27HM3/86A FAQ
1.How can I place an order for TPC27HM3/86A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC27HM3/86A 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 TPC27HM3/86A reliable?
The price and inventory of TPC27HM3/86A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPC27HM3/86A is usually 5 days.
3.What payment methods are accepted for TPC27HM3/86A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC27HM3/86A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC27HM3/86A?
TPC27HM3/86A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC27HM3/86A 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 TPC27HM3/86A?
For technical support, including TPC27HM3/86A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC27HM3/86A requirements.
6.How does Aetrix verify that TPC27HM3/86A is sourced from the original manufacturer or authorized distributors?
All TPC27HM3/86A 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 TPC27HM3/86A meets industry standards.
7.What is the process for return or replacement of TPC27HM3/86A?
All TPC27HM3/86A units undergo pre-shipment inspection (PSI). If there is an issue with TPC27HM3/86A, 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 TPC27HM3/86A part is unused and in its original packaging.
Return procedure for TPC27HM3/86A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC27HM3/86A Tags
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