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Vishay General Semiconductor - Diodes Division 1N6289A-E3/51
- Part No.:
- 1N6289A-E3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1N6289A-E3/51.pdf
- Description:
- TVS DIODE 47.8VWM 77VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:8,789
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Product details
Overview
1N6289A-E3/51 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 53.2–58.8 V breakdown voltage (VBR), 47.8 V maximum working voltage (VWM), 77.0 V clamping voltage 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 range - deployed in automotive power supply inputs and industrial sensor interface protection.
For engineers reviewing the 1N6289A-E3/51 datasheet, 1N6289A-E3/51 pinout, 1N6289A-E3/51 application, or 1N6289A-E3/51 equivalent, this part delivers verified transient suppression for 48 V systems with low clamping ratio (VC/VBR ≈ 1.33), fast sub-nanosecond response, and RoHS-compliant matte tin-plated leads suitable for J-STD-002 soldering.
Technical Context
This unidirectional TVS diode uses a glass-passivated silicon junction to achieve stable avalanche breakdown and low incremental surge resistance. Its clamping behavior is characterized by a 77.0 V maximum VC at 19.5 A IPPM under 10/1000 µs waveform, with a temperature coefficient of VBR at +0.103 %/°C - enabling predictable voltage margining across automotive thermal profiles.
The device supports 200 A non-repetitive forward surge current (IFSM) and exhibits 3.5 V max forward voltage at 100 A, confirming robust handling of inductive turn-off transients. Thermal resistance is specified as RθJL = 15.4 °C/W (junction-to-lead), supporting direct PCB copper pour heatsinking without external thermal vias in moderate-power applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 53.2 V / 58.8 V - defines minimum guaranteed clamping onset and maximum tolerance band for circuit margining |
| VWM | 47.8 V - maximum continuous DC or RMS operating voltage before leakage exceeds 1 µA |
| VC @ IPPM | 77.0 V at 19.5 A - peak clamped voltage during 10/1000 µs surge, determining protected IC's voltage stress limit |
| PPPM | 1500 W - peak transient power dissipation capability, defining survivability against lightning-induced surges per IEC 61000-4-5 |
| IFSM | 200 A - single half-sine surge rating (8.3 ms), validating robustness against motor commutation spikes |
| TJ range | –55 °C to +175 °C - enables placement near hot components (e.g., power MOSFETs, engine control units) |
| Package | Case Style 1.5KE - axial-leaded DO-201AD package with 0.375" lead length, UL 94 V-0 molded epoxy body |
Pinout & Package
1N6289A-E3/51 uses the standard DO-201AD (Case Style 1.5KE) axial package: cathode indicated by color band; leads are matte tin-plated, compliant with J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current return path | Connected to ground or low-impedance reference plane; carries full surge current during clamping |
| Cathode (banded end) | Protected line connection | Placed in series with input rail (e.g., 48 V supply); clamps to anode when overvoltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance (±5 %) and long-term reliability under thermal cycling and humidity exposure |
| 1500 W peak pulse power (10/1000 µs) | Meets Level 4 IEC 61000-4-5 surge immunity requirements for industrial and automotive 48 V subsystems |
| Sub-nanosecond response time | Clamps within <1 ns, protecting sensitive gate oxides of MOSFETs and microcontrollers before damage occurs |
| RoHS-compliant E3 suffix | Meets JEDEC JESD201 Class 1A whisker resistance, ensuring solder joint integrity in high-vibration environments |
| UL 94 V-0 epoxy molding | Provides flame-retardant encapsulation required for automotive cabin and under-hood applications |
Applications
| Automotive Body Control Module (BCM) Power Input | Industrial 48 V DC-DC Converter Input Stage |
|---|---|
Use Scenario: Protects BCM microcontroller and CAN transceivers from load dump and jump-start transients on 48 V battery rail. IC Role / Device Role / Timing Role: Primary unidirectional clamping device placed directly at connector entry point, shunting surge energy to chassis ground. Use Value: Clamps 19.5 A surge to ≤77.0 V, maintaining downstream ICs below absolute maximum ratings while surviving repeated 12 V/48 V system events. |
Use Scenario: Shields primary-side MOSFETs and controller ICs in telecom-grade 48 V input DC-DC converters from lightning-induced surges on PoE or remote power feeds. IC Role / Device Role / Timing Role: Front-end transient suppressor in parallel with bulk input capacitor, activated before MOV or fuse interruption. Use Value: 1500 W rating handles 10/1000 µs surges up to 1 kV common-mode without degradation, preserving converter uptime in outdoor base stations. |
| Smart Sensor Signal Line Protection (RS-485) | Medical Infusion Pump Motor Driver Supply |
Use Scenario: Safeguards RS-485 transceivers in factory-floor sensors exposed to ESD and inductive coupling from nearby AC motors. IC Role / Device Role / Timing Role: Low-capacitance unidirectional TVS on VCC line feeding isolated RS-485 PHY, referenced to local ground. Use Value: 47.8 V VWM allows operation with 36–48 V auxiliary supplies while clamping fast transients before they couple into isolation barriers. |
Use Scenario: Guards H-bridge driver ICs and current sense amplifiers against back-EMF spikes during stepper motor commutation in battery-powered infusion pumps. IC Role / Device Role / Timing Role: Unidirectional clamp on 24 V motor supply rail, positioned upstream of driver IC decoupling capacitors. Use Value: 200 A IFSM rating withstands repetitive 8.3 ms motor turn-off spikes without parametric shift, ensuring dose accuracy compliance. |
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 | DO-214AA package (SMB), 58.0–64.4 V VBR, 53.3 V VWM, 93.6 V VC @ 16.0 A, 600 W PPPM | Lower peak power and higher clamping voltage; suited for space-constrained PCBs where 1500 W is not required | Select SMBJ58A when board area is critical and surge threat level is limited to IEC 61000-4-4 (EFT), not full lightning-level 61000-4-5 |
| 1.5KE56AHE3_A | Same 1.5KE package and electrical specs, but AEC-Q101 qualified and marked with HE3_A suffix for automotive grade | Required for ASIL-B functional safety paths and under-hood deployment where qualification traceability is mandated | Choose 1.5KE56AHE3_A for automotive production programs needing PPAP documentation and AEC-Q101 conformance evidence |
Compared with 1N6289A-E3/51, SMBJ58A offers smaller footprint but reduced surge capacity and higher clamping ratio, while 1.5KE56AHE3_A provides identical protection performance plus automotive qualification - making it the drop-in replacement for safety-critical vehicle systems.
Availability
1N6289A-E3/51 is available at Aetrix Electronics and suitable for automotive electronics, industrial power conversion, medical device power management, and telecommunications infrastructure requiring stable component supply and long-lifecycle support.
Supply support for 1N6289A-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, thermal performance, and industry-standard qualification.
The 1N6267A–1N6303A series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-energy transient suppression in harsh-environment applications including automotive, industrial, and telecom infrastructure.
FAQ
What is the breakdown voltage tolerance for 1N6289A-E3/51?
The 1N6289A-E3/51 has a specified breakdown voltage range of 53.2 V to 58.8 V at 1.0 mA test current, representing a ±5 % tolerance around the nominal 56 V rating. This tight tolerance ensures consistent clamping behavior across production lots and simplifies voltage margining in 48 V system designs.
Is 1N6289A-E3/51 suitable for bidirectional transient protection?
No, 1N6289A-E3/51 is a unidirectional TVS diode, intended only for DC or polarity-defined circuits. For bidirectional AC or data-line protection, Vishay offers the 1N6289CA variant (not 1N6289A-E3/51), which features symmetrical clamping in both directions and no polarity marking.
What is the maximum clamping voltage of 1N6289A-E3/51 under surge conditions?
The 1N6289A-E3/51 clamps to a maximum of 77.0 V when subjected to its rated 19.5 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured per JEDEC test conditions and defines the upper voltage limit imposed on protected circuitry during transient events.
Does 1N6289A-E3/51 meet automotive qualification standards?
The 1N6289A-E3/51 is commercial-grade and RoHS-compliant (E3 suffix), but it is not AEC-Q101 qualified. For automotive applications requiring qualification, the functionally identical 1.5KE56AHE3_A - with HE3_A suffix - is the designated AEC-Q101 variant of the same device family.
What package type does 1N6289A-E3/51 use, and what are its key mechanical features?
1N6289A-E3/51 uses the DO-201AD (Case Style 1.5KE) axial package: molded UL 94 V-0 epoxy body, 0.375" lead length, matte tin-plated leads compliant with J-STD-002, and glass-passivated chip junction. The cathode is marked with a color band, and the device supports solder dip at 275 °C for 10 s.
1N6289A-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):
- 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-E3/51 FAQ
1.How can I place an order for 1N6289A-E3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6289A-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 1N6289A-E3/51 reliable?
The price and inventory of 1N6289A-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 1N6289A-E3/51 is usually 5 days.
3.What payment methods are accepted for 1N6289A-E3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6289A-E3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6289A-E3/51?
1N6289A-E3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6289A-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 1N6289A-E3/51?
For technical support, including 1N6289A-E3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6289A-E3/51 requirements.
6.How does Aetrix verify that 1N6289A-E3/51 is sourced from the original manufacturer or authorized distributors?
All 1N6289A-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 1N6289A-E3/51 meets industry standards.
7.What is the process for return or replacement of 1N6289A-E3/51?
All 1N6289A-E3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6289A-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 1N6289A-E3/51 part is unused and in its original packaging.
Return procedure for 1N6289A-E3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6289A-E3/51 Tags
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