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Vishay General Semiconductor - Diodes Division 1N6286HE3/73
- Part No.:
- 1N6286HE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1N6286HE3/73.pdf
- Description:
- TVS DIODE 34.8VWM 61.9VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:4,463
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Product details
Overview
1N6286HE3/73 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary-side overvoltage protection in power rails and signal lines. It features a 43 V breakdown voltage (VBR = 40.9–45.2 V at 1.0 mA), 36.8 V standoff voltage (VWM), 59.3 V clamping voltage (VC) at 25.3 A peak pulse current, 1500 W peak pulse power (10/1000 µs), and operates from –55 °C to +175 °C - deployed in automotive power supply inputs and industrial sensor interface protection.
For engineers reviewing the 1N6286HE3/73 datasheet, 1N6286HE3/73 pinout, 1N6286HE3/73 application, or 1N6286HE3/73 equivalent, this part delivers verified bidirectional-capable TVS performance with AEC-Q101 qualification, RoHS-compliant matte tin plating, JESD 201 Class 2 whisker resistance, and UL 94 V-0 molded epoxy packaging - critical for high-reliability transient suppression in constrained thermal environments.
Technical Context
This device implements a glass-passivated silicon junction optimized for fast clamping response (<1 ns) under transient surges. Its unidirectional polarity uses a cathode band marking, and it sustains 200 A non-repetitive forward surge current (8.3 ms half-sine) while maintaining low incremental surge resistance and stable clamping across temperature.
The 1N6286HE3/73 operates within a 75 °C/W junction-to-ambient thermal resistance envelope and supports derated power dissipation up to 175 °C junction temperature. Its 1.5KE package enables surface-mount-compatible through-hole mounting with 0.375" lead length for controlled thermal path design.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 40.9 V / 45.2 V at 1.0 mA - defines precise voltage threshold where clamping initiates reliably |
| VWM | 36.8 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 µA |
| VC @ IPPM | 59.3 V at 25.3 A - peak clamped voltage during 10/1000 µs surge, limiting downstream stress |
| PPPM | 1500 W - peak transient power handling capability per single 10/1000 µs pulse |
| TJ range | –55 °C to +175 °C - enables deployment in under-hood automotive and industrial ambient extremes |
| Package | Case Style 1.5KE - axial-leaded DO-201AD package with 0.375" (9.5 mm) lead length for mechanical stability and thermal conduction |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
1N6286HE3/73 uses the standard DO-201AD (Case Style 1.5KE) axial-leaded package with cathode indicated by a color band on one end. Leads are matte tin plated, solderable per J-STD-002 and JESD 22-B102, and rated for 275 °C dip soldering (10 s max).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to protected circuit ground or low-side reference; carries full surge current during clamping |
| Cathode | Reverse-biased clamping node | Connected to line being protected; blocks VWM until VBR exceeded, then shunts surge to anode |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable VBR tolerance and long-term leakage control under humidity and thermal stress |
| 1500 W peak pulse rating (10/1000 µs) | Supports robust protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 4 transients |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive powertrain and body electronics applications requiring zero field failure risk |
| UL 94 V-0 epoxy molding | Prevents flame propagation in enclosed enclosures and meets stringent safety compliance for industrial systems |
| JESD 201 Class 2 whisker resistance | Eliminates tin whisker growth risk in high-reliability applications with >10-year service life expectations |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator transients per ISO 7637-2. IC Role / Device Role / Timing Role: Primary clamping element placed between power rail and ground, absorbing energy before it reaches DC/DC converters or microcontrollers. Use Value: Limits peak rail voltage to ≤59.3 V during 100 A load dump events, preventing latch-up or gate oxide damage in downstream ICs. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) connected to PLC analog inputs over long cables. IC Role / Device Role / Timing Role: Unidirectional TVS placed across signal and ground to suppress induced lightning surges (IEC 61000-4-5) and EFT bursts. Use Value: Clamps transients within <1 ns while adding only 1.5 pF typical junction capacitance, preserving signal integrity up to 10 MHz bandwidth. |
| Telecom Power Supply Surge Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Secondary-side DC bus protection in PoE-powered switches and base station power modules. IC Role / Device Role / Timing Role: Standoff-rated TVS on 48 V output rail to absorb coupled surges from Ethernet cable coupling or AC line disturbances. Use Value: Maintains 36.8 V working voltage margin above nominal 48 V rail while clamping to 59.3 V - enabling safe operation without false triggering. | Use Scenario: Suppressing inductive kickback from brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Freewheeling TVS across motor terminals to clamp flyback voltage spikes during MOSFET turn-off. Use Value: Handles repetitive 200 A surge peaks (8.3 ms) without degradation, extending MOSFET lifetime and eliminating snubber resistor losses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ43A | DO-214AA package (SMB), 43 V VBR, same PPPM but lower IPPM (23.5 A), higher VC (69.4 V) | Surface-mount only; less thermal mass than 1.5KE; suited for PCB space-constrained designs | Select SMBJ43A when board area is limited and thermal budget allows higher clamping voltage |
| 1.5KE43A-E3/54 | Same 1.5KE package and electrical specs, but commercial-grade (non-AEC-Q101), E3 suffix only (JESD 201 Class 1A) | Lacks automotive qualification; suitable for industrial/commercial power supplies without automotive lifecycle requirements | Choose 1.5KE43A-E3/54 for cost-sensitive non-automotive applications where AEC-Q101 is not mandated |
Compared with SMBJ43A and 1.5KE43A-E3/54, the 1N6286HE3/73 uniquely combines AEC-Q101 qualification, JESD 201 Class 2 whisker resistance, and DO-201AD mechanical robustness - making it the preferred choice for automotive and high-reliability industrial deployments where long-term surge immunity and field failure avoidance are mandatory.
Availability
1N6286HE3/73 is available at Aetrix Electronics and suitable for automotive power input protection, industrial sensor interface hardening, telecom DC bus safeguarding, and consumer appliance motor drive circuits requiring stable component supply across multi-year production cycles.
Supply support for 1N6286HE3/73 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 1N6286HE3/73 belongs to Vishay's TRANSZORB® family of high-power TVS diodes, engineered specifically for robust transient suppression in harsh environments - including automotive, industrial automation, and infrastructure equipment subject to lightning, ESD, and switching surges.
FAQ
What is the clamping voltage of the 1N6286HE3/73 under a 10/1000 µs surge?
The 1N6286HE3/73 clamps to a maximum of 59.3 V at its rated peak pulse current of 25.3 A using the standard 10/1000 µs waveform. This value is measured per JEDEC test conditions and reflects worst-case voltage seen by downstream components during surge events - critical for ensuring compatibility with 3.3 V, 5 V, or 12 V IC supply rails.
Is the 1N6286HE3/73 suitable for automotive applications?
Yes, the 1N6286HE3/73 is AEC-Q101 qualified and explicitly listed in Vishay's qualified devices table for the 1.5KEHE3_B series. Its construction - including glass-passivated junction, UL 94 V-0 epoxy, and JESD 201 Class 2 whisker resistance - meets automotive reliability requirements for engine control units, body electronics, and ADAS power domains.
How does the HE3 suffix differ from the E3 suffix in Vishay TVS diodes?
The HE3 suffix on the 1N6286HE3/73 indicates RoHS compliance plus AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. In contrast, the E3 suffix denotes RoHS compliance and JESD 201 Class 1A whisker testing only - meaning the 1N6286HE3/73 provides enhanced long-term reliability for automotive and mission-critical industrial use cases.
What is the maximum operating temperature for the 1N6286HE3/73?
The 1N6286HE3/73 has a maximum junction temperature (TJ) rating of +175 °C and a storage temperature range of –55 °C to +175 °C. This wide thermal envelope supports operation in under-hood automotive environments, industrial motor drives, and outdoor telecom equipment without derating below full 1500 W pulse capability up to 125 °C ambient.
Does the 1N6286HE3/73 have polarity marking, and how is it identified?
Yes, the 1N6286HE3/73 is unidirectional and features a cathode band - a visible color ring near one lead end - indicating the cathode terminal. The anode is the unmarked lead. This marking aligns with JEDEC DO-201AD standards and ensures correct orientation during PCB assembly to prevent reverse-bias failure during normal operation.
1N6286HE3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 34.8V
- Voltage - Breakdown (Min):
- 38.7V
- Voltage - Clamping (Max) @ Ipp:
- 61.9V
- Current - Peak Pulse (10/1000µs):
- 24.2A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1N6286HE3/73 FAQ
1.How can I place an order for 1N6286HE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6286HE3/73 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 1N6286HE3/73 reliable?
The price and inventory of 1N6286HE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6286HE3/73 is usually 5 days.
3.What payment methods are accepted for 1N6286HE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6286HE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6286HE3/73?
1N6286HE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6286HE3/73 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 1N6286HE3/73?
For technical support, including 1N6286HE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6286HE3/73 requirements.
6.How does Aetrix verify that 1N6286HE3/73 is sourced from the original manufacturer or authorized distributors?
All 1N6286HE3/73 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 1N6286HE3/73 meets industry standards.
7.What is the process for return or replacement of 1N6286HE3/73?
All 1N6286HE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6286HE3/73, 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 1N6286HE3/73 part is unused and in its original packaging.
Return procedure for 1N6286HE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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