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Vishay General Semiconductor - Diodes Division TPC39HM3/87A
- Part No.:
- TPC39HM3/87A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC39HM3/87A.pdf
- Description:
- TVS DIODE 31.6VWM 56.4VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:7,631
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Product details
Overview
TPC39HM3/87A 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 standoff voltage of 33.3 V, breakdown voltage of 37.1–41.0 V at 1 mA, clamping voltage of 53.9 V at 27.8 A, and operates up to +185 °C junction temperature.
For engineers reviewing the TPC39HM3/87A datasheet, TPC39HM3/87A pinout, TPC39HM3/87A application, or TPC39HM3/87A equivalent, key selection criteria include its AEC-Q101 qualification, low-profile 1.1 mm height, MSL Level 1 rating, and suitability for protecting MOSFETs, sensor signal lines, and ICs against inductive switching transients.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology with optimized junction passivation for stable clamping under repetitive surge stress. Its unidirectional architecture enables precise reverse-biased overvoltage clamping without forward conduction during normal operation.
The device delivers 1500 W peak pulse power (10/1000 µs waveform), supports 200 A non-repetitive forward surge current (8.3 ms half-sine), and maintains <1.0 µA leakage at 33.3 V and 150 °C - critical for low-power sensor interfaces in automotive ECUs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 33.3 V - maximum continuous reverse operating voltage before clamping begins |
| VBR (min/typ/max) | 37.1 / 39.0 / 41.0 V at 1 mA - ensures reliable triggering above system operating voltage with margin |
| VC @ IPPM | 53.9 V at 27.8 A - limits downstream voltage stress during 1500 W transient events |
| PPPM | 1500 W - handles high-energy surges common in automotive load-dump and inductive switch-off |
| TJ max | +185 °C - supports under-hood placement and extended thermal reliability per AEC-Q101 |
| Package | SMPC (TO-277A) - surface-mount, low-profile (1.1 mm typical height), J-STD-020 MSL Level 1 |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
TPC39HM3/87A is housed in a 3-terminal SMPC (TO-277A) package with cathode band marking on terminal 1. The package features matte tin-plated leads, conforms to JEDEC TO-277A outline, and supports automated SMT placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | High-side clamping node | Connected to protected line (e.g., 33 V rail or sensor input); conducts during overvoltage |
| 2 (Cathode) | Parallel cathode path | Internally tied to Pin 1; doubles current-handling capability and reduces incremental resistance |
| 3 (Anode) | Reference/ground return | Connected to system ground; completes clamping path during transient events |
Key Features
| Feature | Design Value |
|---|---|
| Passivated anisotropic rectifier technology | Enables stable VBR drift <±5 % over lifetime and >1000 surge cycles at rated power |
| Low-profile SMPC package (1.1 mm height) | Reduces board space and improves airflow in dense automotive modules; compatible with standard reflow profiles |
| AEC-Q101 qualification | Validates performance across -65 °C to +185 °C, including HTGB, HTRB, and mechanical shock testing |
| MSL Level 1 rating | Eliminates bake requirements prior to assembly; supports unlimited floor life at ≤30 °C / 60 % RH |
| Very fast response time (<1 ns) | Clamps transients before sensitive downstream components (e.g., CAN transceivers, ADC inputs) are damaged |
Applications
| Automotive Power Distribution | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V power rails in body control modules against load-dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and DC-DC input to clamp surges up to ±120 V. Use Value: Limits clamped voltage to 53.9 V, preventing damage to 40 V-rated buck controllers and ensuring ASIL-B compliance. | Use Scenario: Safeguarding analog outputs of pressure/temperature sensors in motor drives exposed to EMI and switching noise. IC Role / Device Role / Timing Role: TVS connected across sensor output and ground to shunt fast-rising transients induced by nearby IGBT switching. Use Value: Sub-1 ns response and 27.8 A surge capacity suppress 1 kV EFT bursts without degrading signal integrity or offset accuracy. |
| Automotive Lighting Control | Telecom Line Card Surge Protection |
Use Scenario: Protecting LED driver ICs and MOSFET gate drivers in adaptive front-lighting systems (AFS). IC Role / Device Role / Timing Role: TVS placed at driver output to absorb inductive kickback from solenoid-based beam-steering actuators. Use Value: 1500 W peak power rating absorbs 100 mJ pulses without degradation; TJ = 185 °C rating sustains repeated actuation cycles. | Use Scenario: Shielding RS-485 transceivers and PHY ICs on telecom base station line cards from lightning-induced surges. IC Role / Device Role / Timing Role: Unidirectional TVS installed on differential bus lines (A/B) referenced to local ground plane. Use Value: Low clamping voltage (53.9 V) prevents transceiver latch-up while maintaining signal eye diagram integrity at 10 Mbps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ33A-E3/57T | Lower PPPM (400 W), SMA package (higher thermal resistance), VC = 53.3 V at 7.5 A | Not AEC-Q101 qualified; limited to commercial-temperature industrial use | Select when cost sensitivity outweighs automotive reliability and surge energy requirements |
| TPC36HM3/87A | Lower VWM (30.8 V), VBR = 34.2–37.8 V, VC = 49.9 V at 30.1 A | Better suited for 24 V nominal systems with tighter clamping margin | Choose for 24 V battery architectures where lower clamping voltage improves downstream component margin |
Compared with SMAJ33A-E3/57T and TPC36HM3/87A, the TPC39HM3/87A provides higher surge energy handling (1500 W vs. 400 W), automotive qualification, and optimized clamping for 33 V systems - making it the preferred choice for AEC-Q101-compliant 24/36 V power domains requiring robust transient immunity.
Availability
TPC39HM3/87A is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface protection, and telecom line card surge protection requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TPC39HM3/87A 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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices for automotive, industrial, and computing applications.
The TPC series is part of Vishay's PAR® family of high-power TVS diodes engineered specifically for AEC-Q101-compliant automotive surge protection with enhanced thermal robustness and low-profile packaging.
FAQ
What is the standoff voltage (VWM) specification for TPC39HM3/87A?
The TPC39HM3/87A has a maximum standoff voltage (VWM) of 33.3 V, meaning it remains non-conductive under normal operating conditions up to this reverse voltage. This value is confirmed in the Electrical Characteristics table of Vishay document 89056 and ensures compatibility with 33 V nominal systems while providing sufficient margin before breakdown at 37.1 V minimum.
Is TPC39HM3/87A qualified for automotive applications?
Yes, the TPC39HM3/87A is AEC-Q101 qualified, as explicitly stated in the Features section of Vishay document 89056. This qualification covers stress tests including high-temperature reverse bias, temperature cycling, and mechanical shock - confirming its suitability for under-hood and safety-critical automotive subsystems.
What is the clamping voltage (VC) of TPC39HM3/87A and at what current is it measured?
The clamping voltage (VC) of TPC39HM3/87A is 53.9 V, measured at a peak pulse current (IPPM) of 27.8 A using a 10/1000 µs waveform. This value is specified in the Electrical Characteristics table and defines the maximum voltage seen by downstream circuitry during a full-rated 1500 W transient event.
Does TPC39HM3/87A have a dual-cathode configuration, and how does it affect layout?
Yes, TPC39HM3/87A uses a dual-cathode configuration (Pins 1 and 2 both cathodes, internally tied), which lowers incremental surge resistance and improves current sharing. Layout requires connecting both cathode pads to the protected line - not splitting them - to maintain specified clamping performance and thermal derating per the SMPC footprint.
What is the maximum operating junction temperature for TPC39HM3/87A?
The maximum operating junction temperature (TJ) for TPC39HM3/87A is +185 °C, as listed in the Primary Characteristics table and confirmed in the Maximum Ratings section of Vishay document 89056. This rating supports deployment in high-ambient environments such as engine compartments and industrial motor controls.
TPC39HM3/87A 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):
- 31.6V
- Voltage - Breakdown (Min):
- 35.1V
- Voltage - Clamping (Max) @ Ipp:
- 56.4V
- Current - Peak Pulse (10/1000µs):
- 26.6A
- 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)
TPC39HM3/87A FAQ
1.How can I place an order for TPC39HM3/87A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC39HM3/87A 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 TPC39HM3/87A reliable?
The price and inventory of TPC39HM3/87A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPC39HM3/87A is usually 5 days.
3.What payment methods are accepted for TPC39HM3/87A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC39HM3/87A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC39HM3/87A?
TPC39HM3/87A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC39HM3/87A 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 TPC39HM3/87A?
For technical support, including TPC39HM3/87A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC39HM3/87A requirements.
6.How does Aetrix verify that TPC39HM3/87A is sourced from the original manufacturer or authorized distributors?
All TPC39HM3/87A 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 TPC39HM3/87A meets industry standards.
7.What is the process for return or replacement of TPC39HM3/87A?
All TPC39HM3/87A units undergo pre-shipment inspection (PSI). If there is an issue with TPC39HM3/87A, 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 TPC39HM3/87A part is unused and in its original packaging.
Return procedure for TPC39HM3/87A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC39HM3/87A Tags
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