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Vishay General Semiconductor - Diodes Division TPC33HM3/86A
- Part No.:
- TPC33HM3/86A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC33HM3/86A.pdf
- Description:
- TVS DIODE 26.8VWM 47.7VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:9,742
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Product details
Overview
TPC33HM3/86A 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 33.0 V nominal breakdown voltage (VBR), 28.2 V stand-off voltage (VWM), clamping voltage of 45.7 V at 32.8 A peak pulse current, and operates up to +185 °C junction temperature.
For engineers reviewing the TPC33HM3/86A datasheet, TPC33HM3/86A pinout, TPC33HM3/86A application, or TPC33HM3/86A 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 optimized for low incremental surge resistance and fast response time (<1 ns). Its junction passivation enables stable operation at TJ = 185 °C, supporting automotive under-hood and industrial control environments where thermal robustness is critical.
The device uses a three-terminal SMPC (TO-277A) configuration with dual cathodes and a common anode - enabling bidirectional layout flexibility while maintaining unidirectional conduction per channel. Clamping performance is characterized using 10/1000 µs waveform testing per ANSI/IEEE C62.35 standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (Nominal) | 33.0 V - precise breakdown threshold ensures reliable triggering before downstream IC damage |
| VWM | 28.2 V - maximum continuous reverse operating voltage compatible with 24 V automotive systems |
| VC @ IPPM | 45.7 V - clamping voltage limits transient stress on protected circuitry during 32.8 A surge |
| PPPM | 1500 W - peak pulse power handling capability for high-energy transients like load dump |
| TJ max. | +185 °C - extended junction temperature rating supports placement near heat sources |
| Package | SMPC (TO-277A) - surface-mount, low-profile (1.1 mm height), AEC-Q101 qualified, MSL Level 1 |
| Polarity | Unidirectional - protects against positive-going transients only; requires correct orientation in circuit |
Pinout & Package
TPC33HM3/86A is housed in a 3-terminal SMPC (TO-277A) package with matte tin-plated leads, compliant with J-STD-002 and JESD 22-B102 solderability standards. The package meets UL 94 V-0 flammability rating and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Cathode terminal | Connected to protected line; reverse-biased during normal operation; conducts during overvoltage |
| 2 (Cathode) | Cathode terminal | Dual-cathode configuration allows symmetric PCB layout and shared anode routing |
| 3 (Anode) | Anode terminal | Common anode tied to ground or low-impedance return path; defines unidirectional conduction direction |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS sensors |
| Junction temperature rating: +185 °C | Enables use in high-temperature zones without derating or thermal margin loss |
| Very low profile (1.1 mm typical height) | Reduces board stack height and improves compatibility with automated SMT assembly |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 Pulse 1/2a) |
| Meets MSL Level 1 (per J-STD-020) | Eliminates bake-out requirement prior to reflow, reducing manufacturing cost and risk |
Applications
| Automotive Power Distribution | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V supply rails in junction boxes, fuse panels, and DC-DC converter inputs against load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between power rail and chassis ground. Use Value: Withstands 1500 W surges and clamps to 45.7 V, keeping protected MOSFETs and regulators within safe operating area during ISO 16750-2 tests. | Use Scenario: Safeguarding analog and digital signal lines (e.g., CAN, LIN, analog sensor outputs) from ESD and inductive kickback in factory automation modules. IC Role / Device Role / Timing Role: Point-of-entry transient suppressor on sensor harness connectors or PCB-level I/O ports. Use Value: Fast response time and low leakage (<1 μA at 28.2 V) preserve signal integrity while meeting IEC 61000-4-2 Level 4 (±15 kV air) requirements. |
| Motor Drive Gate Driver Protection | Telecom Power Supply Input Stage |
Use Scenario: Shielding high-side and low-side gate drivers in BLDC inverters from cross-conduction-induced voltage spikes and Miller-effect ringing. IC Role / Device Role / Timing Role: Localized TVS across driver output pins and ground, leveraging dual-cathode symmetry for compact layout. Use Value: Dual-cathode configuration simplifies routing; 32.8 A peak pulse current handles repetitive switching surges without degradation. | Use Scenario: Front-end protection for AC/DC and DC/DC converters in telecom base station power supplies exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary clamping device on DC input bus before bulk capacitance and controller ICs. Use Value: 1500 W rating and 45.7 V clamping enable compliance with ITU-T K.20/21 immunity standards for central office equipment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ33A-E3/5A (Vishay) | Same VBR (33 V), but lower PPPM = 400 W; SMA package (higher profile, no AEC-Q101) | Not suitable for automotive under-hood or high-surge industrial environments | Select when cost sensitivity outweighs surge robustness and automotive qualification needs |
| TPC33A (Vishay, HM3/A variant) | Identical electrical specs and AEC-Q101 qualification; differs only in packaging suffix (no /86A tape-and-reel code) | No functional or application difference; /86A denotes specific reel size and packaging option | Choose TPC33HM3/86A for 13" reel delivery (6500 pcs); TPC33A may refer to alternate reel or tray formats |
Compared with SMAJ33A-E3/5A, TPC33HM3/86A delivers 3.75× higher surge power handling and automotive qualification; compared with TPC33A, it specifies exact tape-and-reel configuration for high-volume SMT line feeding, ensuring consistent feeder compatibility and traceability.
Availability
TPC33HM3/86A is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface protection, motor drive gate driver protection, and telecom power supply input stage applications requiring stable component supply, AEC-Q101 compliance, and high-reliability surge suppression.
Supply support for TPC33HM3/86A 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 TPC series belongs to Vishay's PAR® family of high-power surface-mount TVS diodes, engineered specifically for demanding automotive and industrial transient suppression where thermal stability, low profile, and AEC-Q101 compliance are mandatory.
FAQ
What is the clamping voltage of TPC33HM3/86A at its rated peak pulse current?
The TPC33HM3/86A has a maximum clamping voltage (VC) of 45.7 V when subjected to its specified peak pulse current (IPPM) of 32.8 A under 10/1000 µs waveform conditions. This value is measured per ANSI/IEEE C62.35 and ensures predictable voltage limiting during surge events. The TPC33HM3/86A maintains this clamping performance across its full operating temperature range, supporting robust design margins in automotive and industrial applications.
Is TPC33HM3/86A qualified for automotive applications?
Yes, TPC33HM3/86A is AEC-Q101 qualified and rated for junction temperatures up to +185 °C, making it suitable for automotive powertrain, body electronics, and ADAS systems. Its construction meets JESD 201 Class 2 whisker resistance and MSL Level 1 moisture sensitivity requirements. The TPC33HM3/86A is explicitly listed in Vishay's AEC-Q101 certified product portfolio for transient voltage suppression in harsh-environment vehicle subsystems.
What does the "/86A" suffix indicate in TPC33HM3/86A?
The "/86A" suffix in TPC33HM3/86A denotes a specific packaging configuration: 13-inch diameter plastic tape-and-reel with 6500 units per reel (package code "I"). This differs from the "/H" variant (7-inch reel, 1500 units). The base part TPC33HM3_A remains electrically and mechanically identical; /86A identifies the logistics format required for high-volume SMT production lines. TPC33HM3/86A ensures consistent feeder setup and traceability in automated assembly.
How does the dual-cathode configuration of TPC33HM3/86A benefit PCB layout?
The dual-cathode (pins 1 and 2) and common-anode (pin 3) configuration of TPC33HM3/86A allows symmetrical placement relative to protected signal/power lines, reducing loop inductance and improving EMI resilience. It supports flexible routing - e.g., one cathode tied to a data line, the other to a power rail - without requiring separate devices. This topology is especially valuable in space-constrained automotive ECUs where minimizing trace length and parasitic inductance is critical for effective transient suppression.
What is the maximum reverse leakage current of TPC33HM3/86A at its stand-off voltage?
At its stand-off voltage (VWM) of 28.2 V and ambient temperature of 25 °C, the TPC33HM3/86A exhibits a maximum reverse leakage current (IR) of 1.0 µA. At elevated junction temperature (TJ = 150 °C), leakage increases to ≤10 µA - still well within acceptable limits for low-power sensor interfaces and precision analog circuits. This low leakage preserves system efficiency and avoids false triggering in high-impedance monitoring paths.
TPC33HM3/86A 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):
- 26.8V
- Voltage - Breakdown (Min):
- 29.7V
- Voltage - Clamping (Max) @ Ipp:
- 47.7V
- Current - Peak Pulse (10/1000µs):
- 31.4A
- 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)
TPC33HM3/86A FAQ
1.How can I place an order for TPC33HM3/86A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC33HM3/86A 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 TPC33HM3/86A reliable?
The price and inventory of TPC33HM3/86A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPC33HM3/86A is usually 5 days.
3.What payment methods are accepted for TPC33HM3/86A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC33HM3/86A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC33HM3/86A?
TPC33HM3/86A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC33HM3/86A 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 TPC33HM3/86A?
For technical support, including TPC33HM3/86A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC33HM3/86A requirements.
6.How does Aetrix verify that TPC33HM3/86A is sourced from the original manufacturer or authorized distributors?
All TPC33HM3/86A 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 TPC33HM3/86A meets industry standards.
7.What is the process for return or replacement of TPC33HM3/86A?
All TPC33HM3/86A units undergo pre-shipment inspection (PSI). If there is an issue with TPC33HM3/86A, 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 TPC33HM3/86A part is unused and in its original packaging.
Return procedure for TPC33HM3/86A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC33HM3/86A Tags
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