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Vishay General Semiconductor - Diodes Division 1N6289HE3/73
- Part No.:
- 1N6289HE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1N6289HE3/73.pdf
- Description:
- TVS DIODE 45.4VWM 80.5VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:3,706
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Product details
Overview
1N6289HE3/73 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 53.2–58.8 V breakdown voltage (VBR), 47.8 V standoff voltage (VWM), 77.0 V clamping voltage at 19.5 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 1N6289HE3/73 datasheet, 1N6289HE3/73 pinout, 1N6289HE3/73 application, or 1N6289HE3/73 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 75 °C/W), JEDEC 1.5KE package dimensions, and real-world clamping behavior under lightning-surge transients per IEC 61000-4-5.
Technical Context
This device uses a glass-passivated silicon junction optimized for fast transient response (<1 ns) and low incremental surge resistance. Its unidirectional polarity enables cathode-referenced clamping on positive-going surges while blocking reverse leakage ≤1.0 µA at 47.8 V.
The 1N6289HE3/73 complies with AEC-Q101 stress testing for automotive use and supports soldering per J-STD-002 and JESD 22-B102. Its 1.5KE case (DO-201AD) provides UL 94 V-0 flammability rating and matte tin-plated leads meeting JESD 201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 53.2 V / 58.8 V - ensures reliable conduction onset above normal 48 V rail operating range, preventing false triggering |
| VWM | 47.8 V - maximum continuous reverse voltage before leakage exceeds 1.0 µA, compatible with 48 V nominal systems |
| VC @ IPPM | 77.0 V - clamped voltage during 19.5 A 10/1000 µs surge, limiting downstream IC stress to safe levels |
| PPPM | 1500 W - peak surge power handling capability for lightning-induced transients per IEC 61000-4-5 Level 4 |
| IPPM | 19.5 A - maximum non-repetitive surge current supported without degradation |
| TJ max. | +175 °C - extended junction temperature rating enabling under-hood automotive placement |
| RθJA | 75 °C/W - thermal resistance from junction to ambient, defining derating requirements on PCB copper area |
Pinout & Package
1N6289HE3/73 is housed in a DO-201AD (JEDEC 1.5KE) molded epoxy package with axial leads. The cathode is marked by a color band on the body; anode is unmarked. Leads are matte tin-plated and solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Current entry point during forward conduction; grounded reference in unidirectional clamp configuration | Connects to system ground or low-side return path to enable clamping of positive transients on the cathode side |
| Cathode (banded end) | Surge current sink during reverse-biased clamping; connects to protected line | Placed directly on the 48 V rail or signal line to divert surge energy to ground when VIN exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable VBR tolerance (±5 %) and long-term reliability under thermal cycling and humidity exposure |
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics per stress test requirements |
| 1500 W peak pulse power (10/1000 µs) | Withstands IEC 61000-4-5 combination wave surges up to 4 kV open-circuit / 2 kA short-circuit |
| Ultra-fast response time (<1 ns) | Clamps before sensitive downstream MOSFETs or microcontrollers experience overvoltage damage |
| UL 94 V-0 molding compound | Prevents flame propagation in enclosed automotive or industrial enclosures during fault conditions |
Applications
| Automotive Power Input Protection | Industrial 48 V Sensor Interface |
|---|---|
Use Scenario: Protecting 48 V battery-fed ECUs against load dump and alternator surge transients. IC Role / Device Role / Timing Role: Primary clamping element placed between battery rail and DC-DC converter input. Use Value: Limits voltage excursion to ≤77.0 V during 19.5 A surge, preserving input stage MOSFETs rated for 100 V breakdown. |
Use Scenario: Safeguarding RS-485 transceivers and analog front-ends in factory automation sensors. IC Role / Device Role / Timing Role: Unidirectional TVS mounted across differential bus lines referenced to local ground. Use Value: Clamps induced EFT bursts to <80 V, maintaining signal integrity and preventing receiver latch-up. |
| Telecom DC Power Feeds | Renewable Energy Charge Controllers |
Use Scenario: Overvoltage suppression on -48 V telecom rectifier outputs exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Cathode-connected to -48 V rail, anode to chassis ground for negative-rail clamping. Use Value: Withstands repetitive 10/1000 µs surges up to 1500 W without parameter drift, ensuring multi-year field reliability. |
Use Scenario: Protecting MPPT controller MOSFET gates and gate drivers from PV string voltage spikes. IC Role / Device Role / Timing Role: Placed between high-side gate driver output and MOSFET gate to clamp Miller-induced overshoot. Use Value: Fast <1 ns response prevents gate oxide rupture during rapid dV/dt events on 100 V+ PV strings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ58A-E3/52 (Vishay) | Lower PPPM (600 W), smaller SMB package (DO-214AA), same VBR range (55.1–60.7 V) | Not AEC-Q101 qualified; limited to commercial-grade board space-constrained designs | Select when footprint reduction outweighs automotive qualification and 1500 W surge margin. |
| 1.5KE56AHE3/73 (Vishay) | Identical electrical specs and AEC-Q101 qualification; differs only in packaging tape/reel code (/73 vs /54) | No functional difference - same die, same 1.5KE case, same thermal performance | Choose for identical performance with alternate logistics coding; not a functional substitute but a form-fit-function match. |
Compared with SMBJ58A-E3/52, the 1N6289HE3/73 delivers 2.5× higher surge power and automotive qualification; compared with 1.5KE56AHE3/73, it shares full electrical and mechanical equivalence but reflects Vishay's updated HE3 suffix revision for enhanced whisker resistance.
Availability
1N6289HE3/73 is available at Aetrix Electronics and suitable for automotive ECU power inputs, industrial 48 V sensor interfaces, and telecom DC feed protection requiring stable component supply, AEC-Q101 compliance, and 1500 W surge resilience.
Supply support for 1N6289HE3/73 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade validation.
The 1N6289HE3/73 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust, high-energy transient suppression in harsh environments including automotive, industrial, and telecom infrastructure.
FAQ
What is the breakdown voltage tolerance for 1N6289HE3/73?
The 1N6289HE3/73 has a specified breakdown voltage range of 53.2 V to 58.8 V at 1.0 mA test current, corresponding to a ±5 % tolerance around the nominal 56 V rating. This tight VBR window ensures consistent clamping onset across production lots and supports predictable overvoltage protection design margins in 48 V systems where the 1N6289HE3/73 is commonly applied.
Is 1N6289HE3/73 AEC-Q101 qualified?
Yes, the 1N6289HE3/73 carries AEC-Q101 qualification per Vishay documentation (Document Number 88301, Revision 09-Aug-2022). The HE3 suffix explicitly denotes RoHS compliance and AEC-Q101 qualification for the 1.5KE6.8AHE3_B through 1.5KE220AHE3_B series, which includes the 1N6289HE3/73 as the commercial part number mapping to 1.5KE56AHE3_B. This makes the 1N6289HE3/73 suitable for automotive powertrain and body electronics.
What is the clamping voltage of 1N6289HE3/73 at its rated peak pulse current?
The 1N6289HE3/73 exhibits a maximum clamping voltage (VC) of 77.0 V at its rated peak pulse current (IPPM) of 19.5 A, measured using the standard 10/1000 µs double-exponential waveform. This value defines the upper voltage limit imposed on protected circuitry during worst-case surge events and is critical for verifying compatibility with downstream components' absolute maximum ratings in designs using the 1N6289HE3/73.
Does 1N6289HE3/73 have bidirectional capability?
No, the 1N6289HE3/73 is a unidirectional TVS diode. Its polarity is defined by a cathode band, and it conducts only when the cathode is driven positive relative to the anode. Bidirectional variants in the same family use the "CA" suffix (e.g., 1.5KE56CA); the "A" suffix in 1N6289HE3/73 confirms unidirectional construction, making it appropriate for single-polarity rail protection such as 48 V DC inputs where reverse voltage is not expected.
What package type does 1N6289HE3/73 use, and what are its key mechanical features?
The 1N6289HE3/73 uses the JEDEC-standard 1.5KE package (DO-201AD), featuring a molded epoxy body with UL 94 V-0 flammability rating, glass-passivated silicon junction, and matte tin-plated axial leads. Lead finish meets JESD 201 Class 2 whisker resistance, and soldering is qualified per J-STD-002 and JESD 22-B102. Its 0.375" (9.5 mm) lead length and axial form factor support through-hole mounting in high-reliability power applications where the 1N6289HE3/73 is deployed.
1N6289HE3/73 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):
- 45.4V
- Voltage - Breakdown (Min):
- 50.4V
- Voltage - Clamping (Max) @ Ipp:
- 80.5V
- Current - Peak Pulse (10/1000µs):
- 18.6A
- 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
1N6289HE3/73 FAQ
1.How can I place an order for 1N6289HE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6289HE3/73 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 1N6289HE3/73 reliable?
The price and inventory of 1N6289HE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6289HE3/73 is usually 5 days.
3.What payment methods are accepted for 1N6289HE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6289HE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6289HE3/73?
1N6289HE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6289HE3/73 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 1N6289HE3/73?
For technical support, including 1N6289HE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6289HE3/73 requirements.
6.How does Aetrix verify that 1N6289HE3/73 is sourced from the original manufacturer or authorized distributors?
All 1N6289HE3/73 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 1N6289HE3/73 meets industry standards.
7.What is the process for return or replacement of 1N6289HE3/73?
All 1N6289HE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6289HE3/73, 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 1N6289HE3/73 part is unused and in its original packaging.
Return procedure for 1N6289HE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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