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Vishay General Semiconductor - Diodes Division 1N6286-E3/73
- Part No.:
- 1N6286-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1N6286-E3/73.pdf
- Description:
- TVS DIODE 34.8VWM 61.9VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:6,746
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Product details
Overview
1N6286-E3/73 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for high-energy surge protection in power and signal lines. It features a 43 V breakdown voltage (VBR min/max: 40.9–45.2 V), 36.8 V standoff voltage (VWM), 59.3 V clamping voltage (VC) at 25.3 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - used to safeguard MOSFETs, ICs, and sensor interfaces against lightning-induced transients and inductive switching spikes in industrial and automotive systems.
For engineers reviewing the 1N6286-E3/73 datasheet, 1N6286-E3/73 pinout, 1N6286-E3/73 application, or 1N6286-E3/73 equivalent, this page delivers verified electrical parameters, JEDEC 1.5KE package details, clamping performance under standardized surge conditions, thermal derating behavior, and validated alternative parts for circuit protection design-in.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: it remains high-impedance below VWM = 36.8 V, then rapidly avalanches above VBR = 40.9 V to limit transient voltages to ≤59.3 V at 25.3 A. Its glass-passivated junction enables sub-nanosecond response time and low incremental surge resistance, critical for protecting fast-switching power devices.
Rated for 175 °C maximum junction temperature and 6.5 W steady-state power dissipation on infinite heatsink, the device supports robust operation in harsh environments. Thermal resistance is 15.4 °C/W (junction-to-lead) and 75 °C/W (junction-to-ambient), confirming suitability for lead-mounted PCB layouts without forced cooling in most industrial applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 40.9 V / 45.2 V - defines precise avalanche initiation window for reliable overvoltage detection |
| VWM | 36.8 V - maximum continuous reverse operating voltage before leakage exceeds 1 μA |
| VC @ IPPM | 59.3 V at 25.3 A - clamped voltage during 10/1000 µs surge, limiting stress on downstream components |
| PPPM | 1500 W - peak pulse power handling capability per single 1 ms transient event |
| IFSM | 200 A - non-repetitive forward surge current rating (8.3 ms half-sine), supporting inrush tolerance |
| TJ max | +175 °C - extended junction temperature range enabling use in under-hood automotive or high-ambient industrial settings |
| RθJL | 15.4 °C/W - low junction-to-lead thermal resistance ensures efficient heat conduction through leads |
Pinout & Package
Package: JEDEC DO-201AD (Case Style 1.5KE), axial-leaded molded epoxy body with matte tin-plated leads compliant to J-STD-002 and JESD 22-B102; RoHS-compliant E3 suffix; 0.375" (9.5 mm) lead length standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / surge return path | Connected to ground or low-impedance reference in unidirectional clamp configuration |
| Cathode | Avalanche conduction terminal / protected line connection | Marked with color band; connects to line requiring overvoltage protection (e.g., 24 V rail, CAN bus, sensor input) |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable, repeatable avalanche characteristics and long-term reliability under repetitive surge stress |
| 1500 W peak pulse power (10/1000 µs) | Provides industry-standard high-energy transient suppression for IEC 61000-4-5 Level 4 compliance in industrial equipment |
| Sub-nanosecond response time | Clamps transients before sensitive logic or power devices experience damaging overvoltage |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising surges, improving protection margin for 3.3 V/5 V ICs |
| UL 497B recognized (QVGQ2) | Validated for telecom and industrial surge protection system certification without additional external validation |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Protection of gate drivers and microcontroller I/O against back-EMF spikes from relay and solenoid switching in PLCs and CNC controllers. IC Role / Device Role: Unidirectional shunt clamp placed across DC bus or control signal lines upstream of MOSFET drivers. Use Value: Limits transient voltage to 59.3 V, preventing latch-up or oxide breakdown in 40 V-rated gate drivers and 3.3 V/5 V MCU GPIOs. | Use Scenario: Safeguarding LIN bus transceivers and sensor inputs (e.g., ambient temperature, door position) from load dump and jump-start surges. IC Role / Device Role: Line-side TVS on 12 V supply rail and bidirectional data lines (with CA variant); 1N6286-E3/73 used on unidirectional rails. Use Value: Withstands 200 A surge (8.3 ms) and clamps 10/1000 µs transients to ≤59.3 V, meeting ISO 7637-2 Pulse 1/2a/5a requirements. |
| Telecom Power Feeds | Consumer Appliance Control Boards |
Use Scenario: Overvoltage protection on -48 V DC power feeds in remote radio units and DSLAM line cards exposed to lightning-induced surges. IC Role / Device Role: Primary shunt suppressor on input rectifier output, coordinated with MOVs for multi-stage protection. Use Value: 1500 W rating and 36.8 V VWM allow reliable hold-off during normal operation while clamping induced transients within safe margins for -48 V systems. | Use Scenario: Protecting microcontroller reset lines, display backlight drivers, and relay coil suppression circuits in washing machines and HVAC controllers. IC Role / Device Role: Low-cost, high-reliability transient clamp on 5 V/12 V internal rails subject to ESD and switching noise. Use Value: Glass-passivated junction ensures stable performance over 10+ year product lifetimes; RoHS/E3 compliance meets global regulatory requirements. |
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, 69.4 V VC @ 21.7 A, 600 W PPPM | Lower peak power and higher clamping voltage; suited for space-constrained PCBs where 1500 W is not required | Select SMBJ43A when board area is limited and surge energy is ≤600 W; verify layout thermal relief for SMB footprint. |
| 1.5KE43A | Same electrical specs and DO-201AD package; differs only in packaging suffix (E3/73 vs. E3/54) and reel quantity | No functional or application difference; identical performance and mounting | 1.5KE43A is a direct form-fit-function replacement; interchangeability confirmed by Vishay cross-reference documentation. |
Compared with 1N6286-E3/73, SMBJ43A offers smaller footprint but reduced surge capacity and higher clamping, while 1.5KE43A provides identical protection performance in the same package - making it a seamless drop-in option where reel packaging aligns with production requirements.
Availability
1N6286-E3/73 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and telecom power feed applications requiring stable component supply, long-lifecycle support, and traceable RoHS-compliant sourcing.
Supply support for 1N6286-E3/73 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, MOSFETs, and protection devices with emphasis on reliability, power efficiency, and AEC-Q101 qualification.
The 1N6286-E3/73 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-energy transient suppression in demanding industrial, automotive, and telecom infrastructure applications where failure is not an option.
FAQ
What is the breakdown voltage range for the 1N6286-E3/73?
The 1N6286-E3/73 has a guaranteed breakdown voltage (VBR) range of 40.9 V to 45.2 V at 1.0 mA test current, measured per JEDEC standards. This tight tolerance ensures consistent clamping behavior across production lots and supports precise overvoltage threshold design in 36–48 V systems. The value is confirmed in Vishay's official datasheet document 88301, revision 09-Aug-2022.
Does the 1N6286-E3/73 meet automotive qualification standards?
The 1N6286-E3/73 is commercial-grade and not AEC-Q101 qualified; however, its companion part 1.5KE43AHE3_B is AEC-Q101 qualified. The 1N6286-E3/73 shares identical electrical and thermal specifications but lacks the extended reliability testing required for automotive under-hood use. For automotive designs, engineers should specify the HE3 suffix variant instead of the E3/73 version.
What is the clamping voltage of the 1N6286-E3/73 under a 10/1000 µs surge?
The 1N6286-E3/73 clamps to a maximum of 59.3 V at 25.3 A peak pulse current under the standardized 10/1000 µs waveform. This value is measured per Figure 7 in the Vishay datasheet and represents the upper bound of voltage seen by protected circuitry during worst-case surge events - critical for validating safe operating margins of downstream 40 V or 60 V rated components.
Can the 1N6286-E3/73 be used in bidirectional configurations?
No, the 1N6286-E3/73 is strictly unidirectional. Bidirectional variants in the same family carry the "CA" suffix (e.g., 1.5KE43CA). Using the 1N6286-E3/73 in bidirectional applications would result in forward conduction during negative transients, potentially causing failure. For AC or differential-line protection, select the CA-series part or pair two unidirectional devices in series opposition.
What is the thermal resistance from junction to lead for the 1N6286-E3/73?
The 1N6286-E3/73 has a typical junction-to-lead thermal resistance (RθJL) of 15.4 °C/W, as specified in the Thermal Characteristics table of Vishay document 88301. This low value confirms effective heat transfer through the axial leads, allowing the device to sustain its 6.5 W power dissipation rating when mounted with standard 0.375" lead length - essential for thermal design validation in enclosed industrial enclosures.
1N6286-E3/73 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1N6286-E3/73 FAQ
1.How can I place an order for 1N6286-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6286-E3/73 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 1N6286-E3/73 reliable?
The price and inventory of 1N6286-E3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6286-E3/73 is usually 5 days.
3.What payment methods are accepted for 1N6286-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6286-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6286-E3/73?
1N6286-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6286-E3/73 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 1N6286-E3/73?
For technical support, including 1N6286-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6286-E3/73 requirements.
6.How does Aetrix verify that 1N6286-E3/73 is sourced from the original manufacturer or authorized distributors?
All 1N6286-E3/73 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 1N6286-E3/73 meets industry standards.
7.What is the process for return or replacement of 1N6286-E3/73?
All 1N6286-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6286-E3/73, 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 1N6286-E3/73 part is unused and in its original packaging.
Return procedure for 1N6286-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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