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Vishay General Semiconductor - Diodes Division TPC39AHM3/86A
- Part No.:
- TPC39AHM3/86A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC39AHM3/86A.pdf
- Description:
- TVS DIODE 33.3VWM 53.9VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:6,939
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Product details
Overview
TPC39AHM3/86A 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 standoff voltage of 33.3 V, breakdown voltage of 39.0 V (min), clamping voltage of 53.9 V at 27.8 A, and operates up to 185 °C junction temperature.
For engineers reviewing the TPC39AHM3/86A datasheet, TPC39AHM3/86A pinout, TPC39AHM3/86A application, or TPC39AHM3/86A equivalent, key selection criteria include unidirectional surge handling, AEC-Q101 qualification, low-profile 1.1 mm height, MSL Level 1 rating, and compatibility with automated SMT placement on power rails and sensor signal lines.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology optimized for fast response (<1 ns) and low incremental surge resistance. Its unidirectional architecture provides robust clamping during positive-going transients while maintaining low leakage (<1 μA at 33.3 V, 25 °C) and stable breakdown voltage with ±5% tolerance.
The device is rated for 10/1000 μs waveform peak pulse power of 1500 W and supports surge currents up to 27.8 A. Thermal design is enabled by its 185 °C maximum junction temperature and compliance with JESD22-B102 solderability and JESD201 Class 2 whisker resistance standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 33.3 V - Maximum continuous reverse operating voltage before conduction begins |
| VBR (min) | 37.1 V - Minimum breakdown voltage at 1.0 mA test current, ensuring reliable turn-on margin |
| VC @ IPPM | 53.9 V - Clamping voltage at 27.8 A peak pulse current, defining protected circuit voltage ceiling |
| PPPM | 1500 W - Peak pulse power handling capability under standardized 10/1000 μs waveform |
| TJ max | +185 °C - Maximum junction temperature enabling operation in under-hood automotive environments |
| Polarity | Unidirectional - Protects against positive transients only; requires correct anode/cathode orientation |
| MSL Level | Level 1 - No floor life limitation; suitable for standard reflow without dry pack requirements |
Pinout & Package
Package: SMPC (TO-277A), surface-mount, 3-terminal configuration with cathode band marking. Dimensions: 4.80 × 4.40 × 1.10 mm (L × W × H), ultra-low profile for space-constrained PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 3) | Current entry point during clamping | Connected to protected line (e.g., power rail or signal); conducts surge current into ground path |
| Cathode 1 (Pin 1) | Common cathode terminal | Internally tied to Cathode 2; forms single low-inductance cathode node for grounding |
| Cathode 2 (Pin 2) | Common cathode terminal | Electrically identical to Pin 1; dual-pin layout improves thermal dissipation and current sharing |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing |
| 185 °C junction rating | Enables deployment in engine control units, battery management systems, and other high-temperature zones |
| 1.1 mm typical height | Reduces board stack height and improves airflow in dense power modules and ADAS ECUs |
| Low incremental surge resistance | Minimizes voltage overshoot during fast transients, enhancing protection margin for downstream ICs |
| Halogen-free, RoHS-compliant | Meets global environmental regulations and supports lead-free reflow profiles without compromising performance |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Suppressing load-dump and jump-start transients on 12 V battery-fed ECUs in vehicles. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed between battery input and DC/DC converter input stage. Use Value: Limits voltage to ≤53.9 V during 27.8 A surges, preventing damage to 36 V-rated regulators and microcontrollers. | Use Scenario: Safeguarding analog front-end inputs of pressure or temperature sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Signal-line TVS on 0–5 V or 0–10 V sensor outputs exposed to relay-induced switching noise. Use Value: Clamps fast ESD and inductive spikes within nanoseconds while adding <1 pF capacitance to preserve signal integrity. |
| Telecom Power Supply Input | Consumer Device USB Port Protection |
Use Scenario: Protecting AC/DC adapter outputs feeding telecom base station backplane power distribution. IC Role / Device Role / Timing Role: Secondary-side TVS on +48 V DC bus against lightning-induced surges and hot-swap transients. Use Value: Handles 1500 W pulses without degradation, maintaining system uptime in outdoor infrastructure equipment. | Use Scenario: Hardening USB Type-C VBUS lines in portable monitors and docking stations against accidental 20 V adapter misconnection. IC Role / Device Role / Timing Role: Unidirectional clamp between VBUS and ground, activated only above 33.3 V to avoid interfering with normal 5 V operation. Use Value: Prevents latch-up and gate oxide rupture in USB PD controllers while supporting automated SMT assembly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A-E3/57T | Lower PPPM (400 W), SMA package (higher thermal resistance), VC = 58.1 V at 6.9 A | Not AEC-Q101 qualified; limited to commercial/industrial use; less robust for automotive load dump | Choose when cost sensitivity outweighs automotive qualification and higher surge energy demands |
| TPC36AHM3/86A | Lower VWM (30.8 V), lower VBR (36.0 V), same package and AEC-Q101 rating | Better suited for 24 V nominal systems where tighter clamping margin is required below 50 V | Prefer when protecting circuits with lower absolute maximum voltage ratings, e.g., 45 V-rated MOSFETs |
Compared with SMAJ36A-E3/57T and TPC36AHM3/86A, the TPC39AHM3/86A delivers higher surge energy handling (1500 W vs. 400 W), tighter clamping (53.9 V vs. 58.1 V), and automotive-grade reliability-making it optimal for 12 V/24 V hybrid systems requiring both robustness and precision voltage limiting.
Availability
TPC39AHM3/86A is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface protection, and telecom power supply hardening requiring stable component supply across long production lifecycles.
Supply support for TPC39AHM3/86A 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 was developed specifically for high-energy transient suppression in automotive and industrial environments, combining AEC-Q101 qualification, high-temperature operation, and low-profile packaging for next-generation power electronics.
FAQ
What is the maximum clamping voltage of the TPC39AHM3/86A under surge conditions?
The TPC39AHM3/86A has a maximum clamping voltage (VC) of 53.9 V when subjected to its rated peak pulse current of 27.8 A under the standard 10/1000 μs waveform. This value is measured per JEDEC test conditions and defines the upper voltage limit imposed on protected circuitry during transient events, ensuring compatibility with 36 V–45 V rated components downstream of the TPC39AHM3/86A.
Is the TPC39AHM3/86A suitable for automotive applications?
Yes, the TPC39AHM3/86A is AEC-Q101 qualified and rated for operation up to +185 °C junction temperature, making it suitable for under-hood and powertrain applications. Its construction meets JESD201 Class 2 whisker resistance and J-STD-020 MSL Level 1 requirements, and the HM3 suffix confirms halogen-free, RoHS-compliant materials-key criteria for automotive-grade TVS selection.
What does the "HM3/86A" suffix indicate in TPC39AHM3/86A?
The "HM3" denotes Vishay's halogen-free, RoHS-compliant, AEC-Q101-qualified SMPC package variant, while "86A" is the revision code indicating manufacturing lot and process control version. The full suffix confirms compliance with automotive reliability standards and material restrictions, distinguishing it from non-HM3 variants that may lack qualification or environmental compliance.
How does the dual-cathode pin configuration of the TPC39AHM3/86A improve performance?
The TPC39AHM3/86A uses two cathode terminals (Pins 1 and 2) internally shorted to reduce parasitic inductance and enhance thermal spreading. This configuration lowers total surge impedance, improves current sharing during multi-pulse events, and increases power dissipation capability compared to single-cathode equivalents-critical for sustaining 1500 W pulses without thermal runaway.
Can the TPC39AHM3/86A be used in bidirectional protection circuits?
No, the TPC39AHM3/86A is unidirectional only and must be oriented with anode toward the protected line and cathodes grounded. For bidirectional protection, a separate device such as the SMBJ36CA or a back-to-back TPC39AHM3/86A pair would be required. Using this part in reverse polarity will not provide clamping and may result in catastrophic failure under reverse surge conditions.
TPC39AHM3/86A 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):
- 33.3V
- Voltage - Breakdown (Min):
- 37.1V
- Voltage - Clamping (Max) @ Ipp:
- 53.9V
- Current - Peak Pulse (10/1000µs):
- 27.8A
- 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)
TPC39AHM3/86A FAQ
1.How can I place an order for TPC39AHM3/86A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC39AHM3/86A 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 TPC39AHM3/86A reliable?
The price and inventory of TPC39AHM3/86A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPC39AHM3/86A is usually 5 days.
3.What payment methods are accepted for TPC39AHM3/86A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC39AHM3/86A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC39AHM3/86A?
TPC39AHM3/86A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC39AHM3/86A 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 TPC39AHM3/86A?
For technical support, including TPC39AHM3/86A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC39AHM3/86A requirements.
6.How does Aetrix verify that TPC39AHM3/86A is sourced from the original manufacturer or authorized distributors?
All TPC39AHM3/86A 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 TPC39AHM3/86A meets industry standards.
7.What is the process for return or replacement of TPC39AHM3/86A?
All TPC39AHM3/86A units undergo pre-shipment inspection (PSI). If there is an issue with TPC39AHM3/86A, 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 TPC39AHM3/86A part is unused and in its original packaging.
Return procedure for TPC39AHM3/86A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC39AHM3/86A Tags
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