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Vishay General Semiconductor - Diodes Division 1N6289A-E3/73
- Part No.:
- 1N6289A-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1N6289A-E3/73.pdf
- Description:
- TVS DIODE 47.8VWM 77VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:9,604
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Product details
Overview
1N6289A-E3/73 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 53.2–58.8 V breakdown voltage (VBR), 47.8 V stand-off voltage (VWM), 77.0 V clamping voltage (VC) at 19.5 A peak pulse current, 1500 W peak pulse power (10/1000 µs), and operates across –55 °C to +175 °C junction temperature. It is used in automotive power supply inputs and industrial sensor interface protection.
For engineers reviewing the 1N6289A-E3/73 datasheet, 1N6289A-E3/73 pinout, 1N6289A-E3/73 application, or 1N6289A-E3/73 equivalent, this page delivers verified electrical parameters, JEDEC 1.5KE package details, clamping behavior under surge conditions, and validated alternatives for ESD/lightning transient suppression in 24 V and 48 V systems.
Technical Context
This unidirectional TVS diode employs a glass-passivated silicon junction optimized for fast response (<1 ns) and low incremental surge resistance. Its clamping action limits transient voltages before sensitive downstream components-such as MOSFET gate drivers or microcontroller I/O-experience overstress.
The device complies with JEDEC standard 1.5KE case outline, supports 200 A non-repetitive forward surge (8.3 ms half-sine), and exhibits a +0.103 %/°C temperature coefficient of VBR. It is rated for 6.5 W steady-state power dissipation on an infinite heatsink at 75 °C lead temperature.
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 transients while avoiding false triggering |
| VWM | 47.8 V - maximum continuous reverse working voltage compatible with 48 V nominal systems |
| VC @ IPPM | 77.0 V - clamped voltage during 19.5 A 10/1000 µs surge, limiting stress on protected ICs |
| PPPM | 1500 W - peak pulse power handling capability for lightning-induced surges per IEC 61000-4-5 |
| IPPM | 19.5 A - maximum non-repetitive peak pulse current supported under standardized waveform |
| TJ range | –55 °C to +175 °C - enables deployment in under-hood automotive and industrial environments |
| Package | JEDEC 1.5KE - axial-leaded, epoxy-molded case with UL 94 V-0 flammability rating |
Pinout & Package
JEDEC 1.5KE package: axial-leaded, molded epoxy body with cathode band marking; RoHS-compliant matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; 0.375" (9.5 mm) lead length; meets JESD 201 class 1A whisker test.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to system ground or low-side reference in unidirectional clamp configuration |
| Cathode (banded end) | Current exit point during reverse-biased clamping | Connected to protected line (e.g., 48 V rail or CAN bus line) to shunt surge energy to ground |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable VBR tolerance and long-term reliability under thermal cycling and humidity |
| 1500 W peak pulse power (10/1000 µs) | Meets Level 4 IEC 61000-4-5 surge immunity requirements for industrial equipment |
| Clamping time <1 ns | Responds faster than MOVs or GDTs, protecting nanosecond-scale logic and analog front-ends |
| Low incremental surge resistance | Minimizes voltage overshoot during high-di/dt events, improving protection margin |
| UL 94 V-0 molding compound | Prevents flame propagation in enclosed enclosures meeting safety-critical standards |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 48 V battery-fed ECUs against load dump and ISO 7637-2 Pulse 5a transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and DC-DC input to clamp surges before regulator stage. Use Value: Limits peak voltage to 77.0 V during 19.5 A surge, preventing damage to 60 V-rated input capacitors and controllers. |
Use Scenario: Shielding 4–20 mA current loop transmitters from induced lightning surges on field wiring. IC Role / Device Role / Timing Role: TVS connected across loop terminals to divert common-mode transients to earth ground. Use Value: Clamps 10/1000 µs surges to ≤77.0 V within 1 ns, preserving analog accuracy and preventing op-amp latch-up. |
| Telecom DC Power Feeds | Motor Drive Control Board Inputs |
Use Scenario: Safeguarding -48 V telecom rectifier outputs from switching transients and accidental AC cross-connects. IC Role / Device Role / Timing Role: Reverse-connected 1N6289A-E3/73 (cathode to -48 V, anode to ground) clamps positive excursions. Use Value: Withstands 200 A 8.3 ms forward surge, enabling robustness against accidental 230 VAC faults. |
Use Scenario: Protecting isolated gate driver enable inputs on industrial inverters from coupling noise during IGBT switching. IC Role / Device Role / Timing Role: Low-capacitance TVS placed at PCB edge to suppress EFT bursts entering via control cables. Use Value: 77.0 V clamping ensures logic-level signals remain within safe VIH/VIL margins despite 1 kV EFT events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ58A | DO-214AA package; 58.0–64.4 V VBR; 53.3 V VWM; 93.6 V VC @ 16.0 A; lower PPPM (600 W) | Suitable for space-constrained PCBs but requires higher layout creepage for same voltage rating | Select when board area is limited and 600 W surge rating suffices for IEC 61000-4-4 EFT compliance. |
| 1.5KE56A-E3/54 | Same 1.5KE package and identical VBR/VWM/VC specs; differs only in tape-and-reel packaging (54 vs. 73) | No functional difference; identical electrical and thermal performance | Choose based on preferred reel size and procurement logistics-not electrical design impact. |
Compared with 1N6289A-E3/73, SMBJ58A trades package compactness and lower surge rating for reduced footprint, while 1.5KE56A-E3/54 offers identical protection performance in alternate packaging-enabling drop-in substitution where reel format aligns with SMT line requirements.
Availability
1N6289A-E3/73 is available at Aetrix Electronics and suitable for automotive power modules, industrial sensor interfaces, telecom DC feeds, and motor drive control boards requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for 1N6289A-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-Q qualification.
The 1N6289A-E3/73 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-energy transient suppression in harsh environments including automotive, industrial, and telecom infrastructure.
FAQ
What is the breakdown voltage tolerance of the 1N6289A-E3/73?
The 1N6289A-E3/73 has a specified breakdown voltage (VBR) range of 53.2 V to 58.8 V at 1.0 mA test current, representing ±5% tolerance around the nominal 56 V rating. This tight tolerance ensures predictable clamping onset in 48 V system designs and avoids premature conduction during normal operation.
Is the 1N6289A-E3/73 RoHS compliant and qualified for automotive use?
Yes, the 1N6289A-E3/73 carries the "E3" suffix indicating RoHS compliance and commercial-grade qualification. While it is not AEC-Q101 qualified (which requires "HE3" suffix), its 175 °C max junction temperature and robust construction make it widely deployed in non-safety-critical automotive subsystems such as body control modules and infotainment power supplies.
How does the clamping voltage of the 1N6289A-E3/73 compare to its breakdown voltage?
The 1N6289A-E3/73 clamps at 77.0 V when subjected to its rated 19.5 A peak pulse current (10/1000 µs), which is approximately 36% above its minimum breakdown voltage of 53.2 V. This differential reflects the device's incremental surge resistance and defines the maximum voltage stress imposed on protected circuitry during transient events.
Can the 1N6289A-E3/73 be used in bidirectional configurations?
No, the 1N6289A-E3/73 is a unidirectional TVS diode, identifiable by its cathode band marking. For bidirectional protection at comparable voltage ratings, Vishay offers the 1N6289CA variant (or 1.5KE56CA), which provides symmetrical clamping in both polarities and lacks polarity marking.
What is the thermal resistance from junction to ambient for the 1N6289A-E3/73?
The 1N6289A-E3/73 has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W under standard mounting conditions. When mounted on a PCB with minimal copper, this value governs steady-state temperature rise; for high-reliability designs, thermal relief pads or heatsinking should be considered if power dissipation approaches 6.5 W.
1N6289A-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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 47.8V
- Voltage - Breakdown (Min):
- 53.2V
- Voltage - Clamping (Max) @ Ipp:
- 77V
- Current - Peak Pulse (10/1000µs):
- 19.5A
- 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
1N6289A-E3/73 FAQ
1.How can I place an order for 1N6289A-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6289A-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 1N6289A-E3/73 reliable?
The price and inventory of 1N6289A-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 1N6289A-E3/73 is usually 5 days.
3.What payment methods are accepted for 1N6289A-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6289A-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6289A-E3/73?
1N6289A-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6289A-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 1N6289A-E3/73?
For technical support, including 1N6289A-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6289A-E3/73 requirements.
6.How does Aetrix verify that 1N6289A-E3/73 is sourced from the original manufacturer or authorized distributors?
All 1N6289A-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 1N6289A-E3/73 meets industry standards.
7.What is the process for return or replacement of 1N6289A-E3/73?
All 1N6289A-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6289A-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 1N6289A-E3/73 part is unused and in its original packaging.
Return procedure for 1N6289A-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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