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Vishay General Semiconductor - Diodes Division 1N6286AHE3/51
- Part No.:
- 1N6286AHE3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1N6286AHE3/51.pdf
- Description:
- TVS DIODE 36.8VWM 59.3VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:5,726
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Product details
Overview
1N6286AHE3/51 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 40.9 V to 45.2 V breakdown voltage range at 1.0 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 transients to 59.3 V at rated IPPM. It is used in automotive power supply inputs and industrial sensor interface circuits.
For engineers reviewing the 1N6286AHE3/51 datasheet, 1N6286AHE3/51 pinout, 1N6286AHE3/51 application, or 1N6286AHE3/51 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance data, JEDEC 1.5KE package dimensions, and real-world protection use cases - all confirmed from Vishay's official Document Number 88301 (Rev. 11-Oct-16).
Technical Context
This unidirectional TVS diode operates as a fast-acting shunt clamp, activating within <1 ns when transient voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low incremental surge resistance, enabling precise clamping under repetitive 10/1000 µs surges up to 1500 W peak power.
It is rated for continuous operation from –55 °C to +175 °C junction temperature, with thermal resistance of 15.4 °C/W (junction-to-lead) and 75 °C/W (junction-to-ambient). The device meets JESD 201 Class 2 whisker resistance and is RoHS-compliant with matte tin-plated leads solderable per J-STD-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 40.9 V min / 45.2 V max at 1.0 mA - defines precise clamping activation threshold for overvoltage events |
| Standoff Voltage VWM | 36.8 V max - ensures no conduction during normal 36 V DC rail operation |
| Peak Pulse Power PPPM | 1500 W (10/1000 µs) - sustains single high-energy lightning-induced surges without failure |
| Clamping Voltage VC | 59.3 V at 25.3 A IPPM - limits downstream IC voltage stress to safe levels during transient |
| Reverse Leakage ID | 1.0 µA max at VWM - negligible standby current draw in protected circuits |
| Junction Temperature Range | –55 °C to +175 °C - supports under-hood automotive and industrial ambient environments |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability per stress test requirements |
Pinout & Package
Package: JEDEC-standard Case Style 1.5KE - molded epoxy body with axial leads, UL 94 V-0 rated, 0.375" (9.5 mm) lead length, 0.210" (5.3 mm) body diameter.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias | Connected to lower-potential side (e.g., ground or return path) in unidirectional clamp configuration |
| Cathode | Current exit terminal in forward bias; marked with color band | Connected to protected line (e.g., 36 V rail); conducts surge current to ground when V > VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures stable VBR over lifetime and resistance to humidity/moisture-induced parameter drift |
| 1500 W peak pulse power (10/1000 µs) | Handles IEC 61000-4-5 Level 4 surge events (4 kV, 2 Ω source) without degradation |
| AEC-Q101 qualification | Validated for automotive powertrain and body electronics applications requiring zero field failures |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (<1 ns response), improving protection margin |
| Matte tin-plated leads | Enables reliable solder joint formation per J-STD-002; passes JESD 201 Class 2 whisker testing |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: 12 V/24 V battery-fed ECUs exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between power rail and chassis ground to clamp transients before they reach PMIC or MCU input pins. Use Value: Limits voltage to ≤59.3 V during 100 V/100 ms load dump, preventing gate oxide rupture in downstream MOSFETs and LDOs. |
Use Scenario: 4–20 mA current loop sensors in factory automation subject to ESD and inductive switching noise. IC Role / Device Role / Timing Role: TVS mounted across sensor output terminals to divert fast transients induced by relay coil de-energization. Use Value: Clamps 8/20 µs surges to <60 V within 1 ns, preserving analog front-end ADC accuracy and isolator integrity. |
| Telecom DC Power Feeds | Consumer Device USB Port Protection |
Use Scenario: -48 V telecom rectifier outputs feeding base station control boards. IC Role / Device Role / Timing Role: Primary overvoltage clamp on DC input, upstream of DC/DC converters and hot-swap controllers. Use Value: Absorbs 1500 W surges from lightning-induced coupling on long feeder lines while maintaining <1 µA leakage at -41 V nominal. |
Use Scenario: USB 2.0 VBUS line in portable medical monitors subjected to user-handling ESD. IC Role / Device Role / Timing Role: Standoff-rated TVS placed between VBUS and GND to suppress ±15 kV contact ESD per IEC 61000-4-2. Use Value: Clamps ESD event to 59.3 V in <1 ns, preventing latch-up in USB transceivers and preserving enumeration functionality. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36A | Lower PPPM (600 W), smaller SMB package (vs. axial 1.5KE), 36 V VWM, 58.1 V VC @ 10.3 A | Better suited for space-constrained PCBs; insufficient for 1500 W IEC 61000-4-5 Level 4 compliance | Select only when board area is critical and surge energy is limited to ≤600 W |
| 1.5KE43A-E3/54 | Identical electrical specs and 1.5KE package; differs only in packaging suffix (E3/54 = tape-and-reel, 1400 pcs; HE3/51 = AEC-Q101 + tape-and-reel, 1400 pcs) | No functional difference; both meet same VBR, VC, and thermal specs | Choose 1.5KE43A-E3/54 for commercial-grade cost-sensitive designs; retain 1N6286AHE3/51 for automotive AEC-Q101 traceability |
Compared with SMBJ36A, 1N6286AHE3/51 delivers 2.5× higher surge power handling and proven AEC-Q101 reliability, while 1.5KE43A-E3/54 offers identical protection performance without automotive qualification - making 1N6286AHE3/51 the sole choice where automotive-grade validation and full 1500 W capability are mandatory.
Availability
1N6286AHE3/51 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom DC power feeds requiring stable component supply with guaranteed AEC-Q101 compliance and full traceability.
Supply support for 1N6286AHE3/51 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 high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The 1N6286AHE3/51 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust, standardized transient suppression in harsh environments where failure is not an option - especially in AEC-Q101-certified automotive subsystems.
FAQ
What is the breakdown voltage tolerance of the 1N6286AHE3/51?
The 1N6286AHE3/51 has a specified breakdown voltage range of 40.9 V minimum to 45.2 V maximum at 1.0 mA test current, corresponding to a ±5% tolerance about the nominal 43 V rating. This tight VBR window ensures consistent clamping behavior across production lots and enables predictable system-level overvoltage protection design without derating overhead.
Is the 1N6286AHE3/51 suitable for automotive applications?
Yes, the 1N6286AHE3/51 is AEC-Q101 qualified per Vishay Document Number 88301, confirming it has passed stress tests including HTGB, HTRB, TCT, and mechanical shock required for automotive under-hood and chassis-mounted electronics. Its –55 °C to +175 °C operating range and JESD 201 Class 2 whisker resistance further validate suitability for automotive power distribution modules and body control units.
How does the clamping voltage of the 1N6286AHE3/51 compare to its breakdown voltage?
The 1N6286AHE3/51 clamps at 59.3 V when subjected to its rated 25.3 A peak pulse current (10/1000 µs), which is approximately 32% above its maximum VBR of 45.2 V. This incremental clamping voltage (ΔVC = 14.1 V) reflects low dynamic impedance, ensuring minimal overshoot during fast transients - critical for protecting sensitive 3.3 V or 5 V logic downstream of the protected rail.
What is the thermal resistance of the 1N6286AHE3/51, and why does it matter?
The 1N6286AHE3/51 has a typical junction-to-lead thermal resistance (RθJL) of 15.4 °C/W and junction-to-ambient (RθJA) of 75 °C/W. RθJL is critical for surge duty-cycle calculations: during repetitive 10/1000 µs pulses, heat must conduct efficiently from the die into the PCB copper pour or heatsink via leads. High RθJA confirms the axial 1.5KE package relies on lead conduction - not ambient convection - for thermal management during transient events.
Can the 1N6286AHE3/51 be used in bi-directional configurations?
No, the 1N6286AHE3/51 is strictly unidirectional, as indicated by the "A" suffix and presence of a cathode band. Bi-directional variants (e.g., 1N6286CA) exist in the same family but are separate part numbers. Using 1N6286AHE3/51 in AC or floating-bus applications would result in forward conduction during negative half-cycles, causing failure. Always verify polarity marking and select CA-suffix parts for true bi-directional protection.
1N6286AHE3/51 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1N6286AHE3/51 FAQ
1.How can I place an order for 1N6286AHE3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6286AHE3/51 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 1N6286AHE3/51 reliable?
The price and inventory of 1N6286AHE3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6286AHE3/51 is usually 5 days.
3.What payment methods are accepted for 1N6286AHE3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6286AHE3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6286AHE3/51?
1N6286AHE3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6286AHE3/51 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 1N6286AHE3/51?
For technical support, including 1N6286AHE3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6286AHE3/51 requirements.
6.How does Aetrix verify that 1N6286AHE3/51 is sourced from the original manufacturer or authorized distributors?
All 1N6286AHE3/51 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 1N6286AHE3/51 meets industry standards.
7.What is the process for return or replacement of 1N6286AHE3/51?
All 1N6286AHE3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6286AHE3/51, 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 1N6286AHE3/51 part is unused and in its original packaging.
Return procedure for 1N6286AHE3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6286AHE3/51 Tags
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