My Inquiry
My Account
Vishay General Semiconductor - Diodes Division TPC39HM3/86A
- Part No.:
- TPC39HM3/86A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
TPC39HM3/86A.pdf
- Description:
- TVS DIODE 31.6VWM 56.4VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:3,468
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPC39HM3/86A 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 39.0 V nominal breakdown voltage (VBR), 33.3 V stand-off voltage (VWM), clamping voltage of 53.9 V at 27.8 A peak pulse current, and operates up to +185 °C junction temperature.
For engineers reviewing the TPC39HM3/86A datasheet, TPC39HM3/86A pinout, TPC39HM3/86A application, or TPC39HM3/86A 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 design supports stable clamping performance across -65 °C to +185 °C operating range and enables reliable operation under repetitive surge stress per JESD22-A114.
The device is rated for 1500 W peak pulse power (10/1000 µs waveform), delivers 27.8 A peak pulse current (IPPM), and maintains <1.0 µA reverse leakage at VWM = 33.3 V and 150 °C - critical for low-power sensor interface protection in automotive ECUs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (Nominal) | 39.0 V - ensures precise triggering above system operating voltage while avoiding false trips |
| VWM | 33.3 V - maximum continuous reverse voltage before conduction begins; matches 3.3 V–24 V rail protection needs |
| VC @ IPPM | 53.9 V - clamping voltage limits downstream component stress during 1500 W transient events |
| IPPM | 27.8 A - peak surge current handling capability under standardized 10/1000 µs waveform |
| TJ max | +185 °C - enables placement near hot components (e.g., power MOSFETs, engine control modules) |
| Package | SMPC (TO-277A) - surface-mount, low-profile (1.1 mm height), AEC-Q101 qualified, RoHS-compliant |
| MSL Level | Level 1 - no floor life limitation; compatible with standard reflow profiles without baking |
Pinout & Package
Package: SMPC (TO-277A), 3-terminal surface-mount case with cathode band marking. Dimensions conform to JEDEC TO-277A standard: 4.80 × 3.70 × 1.10 mm (L × W × H), matte tin-plated leads, halogen-free molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Cathode | Connected to protected line; conducts during overvoltage to shunt energy to ground |
| Terminal 2 | Cathode | Parallel cathode terminal - electrically common with Terminal 1; improves current sharing and thermal dissipation |
| Terminal 3 | Anode | Connected to system ground; completes clamping path during transient events |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock |
| Junction passivation | Reduces leakage drift and enhances long-term stability under high-temperature bias conditions |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 Pulse 1/2a/5a) |
| Very fast response time | Sub-nanosecond turn-on ensures clamping before sensitive downstream circuitry is damaged |
| MSL Level 1 compliance | Eliminates pre-bake requirements and simplifies SMT manufacturing flow |
Applications
| Automotive Power Supply Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V power rails in engine control units (ECUs), body control modules (BCMs), and ADAS camera modules from load dump and inductive switching spikes. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp transients before they reach LDOs, microcontrollers, or CAN transceivers. Use Value: Withstands 1500 W surges and operates up to +185 °C, enabling direct placement on high-temperature PCB zones near power stages. | Use Scenario: Safeguarding analog and digital signal lines (e.g., LIN, PWM, thermistor inputs) in factory automation sensors exposed to EMI and relay-induced transients. IC Role / Device Role / Timing Role: Low-capacitance TVS connected between signal trace and ground to suppress sub-microsecond ESD and switching noise without distorting signal integrity. Use Value: 33.3 V VWM allows compatibility with 24 V industrial buses; 53.9 V clamping prevents damage to 3.3 V/5 V ADC front-ends. |
| Consumer Device DC Input Protection | Telecom Power Entry Protection |
Use Scenario: Securing USB-C PD, PoE-powered devices, and smart home hubs against accidental AC/DC adapter misconnection and lightning-induced surges. IC Role / Device Role / Timing Role: Primary-level TVS on DC input stage, upstream of fuse and filtering, to absorb bulk surge energy before it propagates into regulation circuitry. Use Value: 1500 W rating handles IEC 61000-4-5 Level 4 (4 kV/2 Ω) surges; low profile (1.1 mm) fits compact portable designs. | Use Scenario: Protecting 48 V telecom power entry points (e.g., base station RF modules, ONU power supplies) from induced surges on outdoor cabling. IC Role / Device Role / Timing Role: High-energy TVS mounted at board edge, bridging input rail to chassis ground to divert lightning-induced common-mode transients. Use Value: AEC-Q101 qualification ensures robustness in harsh environments; TO-277A package provides superior thermal coupling to heatsink pads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A-E3/57T | Lower PPPM (400 W), SMA package (higher thermal resistance), VBR = 40.0 V min, VC = 58.1 V @ 6.9 A | Not AEC-Q101 qualified; limited to commercial/industrial use; unsuitable for under-hood automotive | Select when cost sensitivity outweighs automotive qualification and surge energy requirements are ≤400 W |
| TPC36HM3/86A | Lower VBR (36.0 V nom), VWM = 30.8 V, VC = 49.9 V @ 30.1 A - tighter clamping margin for 24 V systems | Better suited for 24 V nominal rails where lower clamping headroom is required; identical footprint and qualification | Choose for 24 V systems needing lower VWM and reduced clamping voltage, retaining same automotive reliability and layout |
Compared with SMAJ36A-E3/57T and TPC36HM3/86A, the TPC39HM3/86A offers higher surge energy handling (1500 W vs. 400 W or 1500 W), tighter VBR tolerance (±5 % vs. ±10 %), and guaranteed AEC-Q101 compliance - making it the preferred choice for automotive power rail protection where both reliability and energy absorption are critical.
Availability
TPC39HM3/86A is available at Aetrix Electronics and suitable for automotive power supply protection, industrial sensor interface protection, and telecom power entry protection requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for TPC39HM3/86A 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 is part of Vishay's PAR® (Protected Automotive Rectifier) family, engineered specifically for high-energy transient suppression in automotive and industrial environments where AEC-Q101 compliance, high-temperature operation, and consistent clamping performance are mandatory.
FAQ
What is the breakdown voltage tolerance for TPC39HM3/86A?
The TPC39HM3/86A has a nominal breakdown voltage (VBR) of 39.0 V with a minimum of 37.1 V and maximum of 41.0 V at 1.0 mA test current - corresponding to a ±5 % tolerance. This tight tolerance ensures predictable clamping behavior across production lots and temperature ranges, critical for robust protection in automotive power systems where voltage margins are constrained.
Is TPC39HM3/86A suitable for bidirectional transient protection?
No, TPC39HM3/86A is strictly unidirectional. Its internal structure supports conduction only from cathode to anode during overvoltage events. For bidirectional protection (e.g., data lines subject to ± surges), a dedicated bidirectional TVS such as SMBJ33CA must be used. Using TPC39HM3/86A in reverse-biased configurations risks permanent failure due to lack of reverse avalanche capability.
Does TPC39HM3/86A require derating at elevated ambient temperatures?
Yes, TPC39HM3/86A must be derated above TA = 25 °C per Figure 2 in the datasheet. At 100 °C ambient, its peak pulse power drops to ~70 % of 1500 W (≈1050 W); at 150 °C, it falls to ~40 %. Derating ensures safe operation within the 185 °C maximum junction temperature limit and preserves clamping performance during sustained thermal stress.
What is the mounting pad layout recommendation for TPC39HM3/86A?
The recommended PCB pad layout for TPC39HM3/86A follows JEDEC TO-277A specifications: 4.80 mm × 3.70 mm land pattern with 2.13 mm center-to-center spacing between cathode terminals. Thermal relief pads for Terminal 3 (Anode) should connect to a ≥1 cm² copper pour to enhance heat dissipation during surge events and maintain junction temperature below 185 °C.
How does the HM3 suffix affect TPC39HM3/86A's compliance status?
"HM3" denotes Vishay's halogen-free, RoHS-compliant, AEC-Q101-qualified variant in SMPC (TO-277A) package. The "86A" suffix indicates revision code and tape-and-reel packaging (7" reel, 1500 pcs). This combination confirms full automotive qualification, material compliance per JESD201 Class 2 whisker testing, and UL 94 V-0 flammability rating - all verified in the official Vishay document 89056.
TPC39HM3/86A 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):
- 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)
TPC39HM3/86A FAQ
1.How can I place an order for TPC39HM3/86A through Aetrix?
Please submit a Request for Quotation (RFQ) for TPC39HM3/86A 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 TPC39HM3/86A reliable?
The price and inventory of TPC39HM3/86A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPC39HM3/86A is usually 5 days.
3.What payment methods are accepted for TPC39HM3/86A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPC39HM3/86A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPC39HM3/86A?
TPC39HM3/86A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPC39HM3/86A 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 TPC39HM3/86A?
For technical support, including TPC39HM3/86A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPC39HM3/86A requirements.
6.How does Aetrix verify that TPC39HM3/86A is sourced from the original manufacturer or authorized distributors?
All TPC39HM3/86A 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 TPC39HM3/86A meets industry standards.
7.What is the process for return or replacement of TPC39HM3/86A?
All TPC39HM3/86A units undergo pre-shipment inspection (PSI). If there is an issue with TPC39HM3/86A, 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 TPC39HM3/86A part is unused and in its original packaging.
Return procedure for TPC39HM3/86A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPC39HM3/86A Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
