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Vishay General Semiconductor - Diodes Division 1N6286A-E3/51
- Part No.:
- 1N6286A-E3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1N6286A-E3/51.pdf
- Description:
- TVS DIODE 36.8VWM 59.3VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:4,660
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Product details
Overview
1N6286A-E3/51 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in DC power rails and signal lines. It features a 40.9 V to 45.2 V breakdown voltage range at 1 mA test current, 36.8 V maximum standoff voltage, 1.0 µA max reverse leakage at VWM, 25.3 A peak pulse current (10/1000 µs), and clamps to 59.3 V at rated surge. It is widely deployed in automotive power supply inputs and industrial sensor interface circuits.
For engineers reviewing the 1N6286A-E3/51 datasheet, 1N6286A-E3/51 pinout, 1N6286A-E3/51 application, or 1N6286A-E3/51 equivalent, this page delivers verified electrical parameters, package dimensions, real-world use cases, and validated alternative parts - all aligned with Vishay's 88301 specification revision (09-Aug-2022).
Technical Context
This TVS diode operates as a silicon avalanche clamp, responding within <1 ns to transient overvoltages. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance, while its unidirectional polarity enables integration into DC-biased circuits without reverse conduction concerns.
The device is rated for 1500 W peak pulse power (10/1000 µs waveform), derated above 25 °C per Fig. 2, and supports 200 A non-repetitive forward surge (8.3 ms half-sine). Maximum junction temperature is 175 °C, and thermal resistance from junction to lead is 15.4 °C/W - critical for PCB layout and heatsinking decisions in high-reliability systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR min / max | 40.9 V / 45.2 V at 1 mA - defines minimum clamping threshold and maximum guaranteed breakdown under production tolerance |
| VWM | 36.8 V - maximum continuous DC or RMS operating voltage before significant leakage begins |
| IPPM | 25.3 A (10/1000 µs) - peak surge current it safely clamps without failure, directly sizing upstream fusing |
| VC | 59.3 V at IPPM - maximum clamped voltage seen by protected circuit during worst-case surge |
| PPPM | 1500 W - peak transient power handling capacity, enabling protection against lightning-induced surges per IEC 61000-4-5 |
| TJ max | 175 °C - maximum junction temperature, supporting operation in under-hood automotive or industrial enclosures |
| RθJL | 15.4 °C/W - thermal resistance from junction to lead, informing solder pad copper area and trace width requirements |
Pinout & Package
1N6286A-E3/51 uses the industry-standard Case Style 1.5KE axial-leaded package: molded epoxy body with matte tin-plated leads, 0.038–0.042 inch (0.96–1.07 mm) lead diameter, 0.210–0.285 inch (5.3–7.2 mm) body length, and 1.0 inch (25.4 mm) minimum lead length. The cathode is marked by a color band on the body end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection in unidirectional configuration | Connected to ground or low-potential node; conducts only during reverse-biased transients |
| Cathode | High-side connection with polarity marking | Marked end connects to protected line; blocks normal operation but avalanches during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity stress |
| 1500 W peak pulse rating (10/1000 µs) | Provides immunity to severe transients including ISO 7637-2 Pulse 5a (load dump) in 12 V automotive systems |
| Clamping voltage ≤ 59.3 V | Limits stress on downstream 48 V-rated MOSFETs or microcontrollers during surge events |
| AEC-Q101 qualification available (HE3 suffix variants) | Validates suitability for automotive powertrain and body electronics where qualification is mandatory |
| RoHS-compliant E3 suffix | Meets JESD 201 Class 1A whisker resistance, ensuring solder joint integrity in high-vibration environments |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Clamp |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role: Unidirectional TVS placed between power rail and chassis ground to shunt surge energy. Use Value: Clamps to 59.3 V, keeping downstream 60 V-rated DC-DC converters within safe operating area during ISO 7637-2 Pulse 5a events. | Use Scenario: Shielding 4–20 mA current loop transmitters from ESD and inductive switching noise in factory automation. IC Role / Device Role: TVS connected across loop terminals to suppress fast-rising common-mode transients. Use Value: Sub-1 ns response prevents latch-up in precision op-amps and ADC front-ends exposed to 8 kV contact ESD per IEC 61000-4-2. |
| Telecom DC Power Feeds | Consumer Appliance Motor Drive Inputs |
Use Scenario: Safeguarding PoE-powered devices (e.g., IP cameras) against induced surges on 48 V DC input lines. IC Role / Device Role: Primary overvoltage clamp on the DC input stage before DC-DC conversion. Use Value: 1500 W rating handles telecom-grade lightning surges (IEC 61000-4-5, 10/700 µs), while 36.8 V VWM avoids false triggering during nominal 48 V operation. | Use Scenario: Protecting BLDC motor controller gate drivers from back-EMF spikes during commutation. IC Role / Device Role: TVS mounted across high-side FET source-drain to clamp inductive kickback. Use Value: Low clamping voltage (59.3 V) prevents gate oxide rupture in 60 V-rated MOSFETs during repetitive 100 V+ flyback events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ43A-E3/52 | Same VBR range (40.9–45.2 V), lower PPPM (600 W), SMC package (surface-mount) | Not suitable for high-energy surges requiring 1500 W; preferred where board space is constrained and surge levels are lower (e.g., USB ports) | Select SMBJ43A-E3/52 only when PCB real estate is limited and peak transient energy is ≤ 600 W. |
| 1.5KE43A-E3/54 | Identical electrical specs and case style; differs only in tape-and-reel packaging (54 vs. 51) and base quantity (1400 vs. 1000 units) | No functional or performance difference; both meet same Vishay 88301 spec and RoHS/E3 requirements | 1.5KE43A-E3/54 is a direct form-fit-function replacement - choose based on procurement logistics and volume requirements. |
Compared with SMBJ43A-E3/52, 1N6286A-E3/51 delivers 2.5× higher surge power handling and axial-leaded through-hole mounting for mechanical robustness; versus 1.5KE43A-E3/54, it shares identical protection capability but offers different reel packaging for smaller batch orders.
Availability
1N6286A-E3/51 is available at Aetrix Electronics and suitable for automotive power input protection, industrial sensor interface hardening, telecom DC feed safeguarding, and consumer appliance motor drive surge suppression requiring stable component supply and full traceability.
Supply support for 1N6286A-E3/51 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, and protection devices with emphasis on reliability, power handling, and automotive qualification.
The 1N6267A–1N6303A series - including 1N6286A-E3/51 - was engineered specifically for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom infrastructure applications demanding AEC-Q101 readiness and 1500 W surge resilience.
FAQ
What is the breakdown voltage tolerance of the 1N6286A-E3/51?
The 1N6286A-E3/51 has a specified breakdown voltage range of 40.9 V to 45.2 V at 1 mA test current, representing ±5% tolerance around the nominal 43 V rating. This tight VBR window ensures consistent clamping behavior across production lots and supports reliable design margining in safety-critical circuits such as automotive power supplies where overvoltage thresholds must be precisely controlled.
Is the 1N6286A-E3/51 RoHS compliant and lead-free?
Yes, the 1N6286A-E3/51 is RoHS compliant and lead-free, as confirmed by the "E3" suffix per Vishay's ordering nomenclature. It meets JESD 201 Class 1A whisker resistance requirements and complies with UL 94 V-0 flammability standards for its epoxy molding compound. Full material declarations and compliance documentation are available through Vishay's official portal using document number 88301.
Can the 1N6286A-E3/51 be used in bidirectional configurations?
No, the 1N6286A-E3/51 is strictly a unidirectional TVS diode. Bidirectional variants in the same family carry the "CA" suffix (e.g., 1.5KE43CA). Using 1N6286A-E3/51 in AC or floating applications would result in forward conduction during one half-cycle, causing failure. For bidirectional protection at 43 V, specify 1.5KE43CA-E3/54 or equivalent.
What is the maximum clamping voltage of the 1N6286A-E3/51 under surge conditions?
The maximum clamping voltage (VC) of the 1N6286A-E3/51 is 59.3 V at its rated peak pulse current of 25.3 A (10/1000 µs waveform). This value is measured per JEDEC standard test conditions and represents the highest voltage imposed on the protected circuit during worst-case surge events - a critical parameter for verifying compatibility with downstream 60 V-rated components like MOSFETs and regulators.
Does the 1N6286A-E3/51 require a heatsink for continuous operation?
No heatsink is required for transient suppression duty, as the 1N6286A-E3/51 handles energy in short pulses (≤1 ms). However, for sustained power dissipation, its 6.5 W steady-state rating at TL = 75 °C and RθJL = 15.4 °C/W mean that adequate PCB copper (≥1 sq. in. per lead) is essential to maintain junction temperature below 175 °C during repeated surges or elevated ambient conditions.
1N6286A-E3/51 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 36.8V
- Voltage - Breakdown (Min):
- 40.9V
- Voltage - Clamping (Max) @ Ipp:
- 59.3V
- Current - Peak Pulse (10/1000µs):
- 25.3A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1N6286A-E3/51 FAQ
1.How can I place an order for 1N6286A-E3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6286A-E3/51 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 1N6286A-E3/51 reliable?
The price and inventory of 1N6286A-E3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6286A-E3/51 is usually 5 days.
3.What payment methods are accepted for 1N6286A-E3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6286A-E3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6286A-E3/51?
1N6286A-E3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6286A-E3/51 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 1N6286A-E3/51?
For technical support, including 1N6286A-E3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6286A-E3/51 requirements.
6.How does Aetrix verify that 1N6286A-E3/51 is sourced from the original manufacturer or authorized distributors?
All 1N6286A-E3/51 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 1N6286A-E3/51 meets industry standards.
7.What is the process for return or replacement of 1N6286A-E3/51?
All 1N6286A-E3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6286A-E3/51, 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 1N6286A-E3/51 part is unused and in its original packaging.
Return procedure for 1N6286A-E3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6286A-E3/51 Tags
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