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Vishay General Semiconductor - Diodes Division 1N6280A-E3/54
- Part No.:
- 1N6280A-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1N6280A-E3/54.pdf
- Description:
- TVS DIODE 20.5VWM 33.2VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:3,660
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Product details
Overview
1N6280A-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in DC power rails and signal lines. It features a 22.8 V to 25.2 V breakdown voltage (VBR) at 1 mA, 20.5 V maximum standoff voltage (VWM), 33.2 V clamping voltage (VC) at 45.2 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - deployed in automotive sensor interfaces, industrial I/O modules, and telecom power supplies.
For engineers reviewing the 1N6280A-E3/54 datasheet, 1N6280A-E3/54 pinout, 1N6280A-E3/54 application, or 1N6280A-E3/54 equivalent, this part serves as a RoHS-compliant, commercial-grade TVS diode with glass-passivated junction, 175 °C max junction temperature, and JESD201 Class 1A whisker resistance - critical for high-reliability transient suppression where fast response (<1 ns), low clamping ratio, and stable thermal derating are required.
Technical Context
This unidirectional TVS diode operates by avalanche breakdown to clamp transient voltages above its VWM threshold while maintaining low leakage (<1 µA at 20.5 V). Its 1500 W peak pulse power handling is validated under JEDEC-standard 10/1000 µs waveform with 0.01% duty cycle, and thermal performance is defined by RθJA = 75 °C/W and RθJL = 15.4 °C/W.
The device uses a molded epoxy case (Case Style 1.5KE) with matte tin-plated leads compliant to J-STD-002 and JESD22-B102, and supports soldering up to 275 °C for 10 s. Polarity is marked by a cathode band; it is not bidirectional and does not support CA-suffix configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 22.8 V / 25.2 V at 1 mA - defines precise avalanche initiation window for reliable overvoltage detection |
| VWM | 20.5 V - maximum continuous reverse operating voltage before leakage exceeds 1 µA |
| VC @ IPPM | 33.2 V at 45.2 A - clamped voltage during 10/1000 µs surge, limiting downstream stress |
| PPPM | 1500 W - peak transient energy absorption capability without failure |
| IFSM | 200 A - single half-sine surge current rating (8.3 ms), supporting inductive switch-off events |
| TJ max | +175 °C - enables operation in under-hood automotive or high-ambient industrial environments |
| Package | Case Style 1.5KE - axial-leaded DO-201AD package, 0.375" lead length, UL 94 V-0 compliant molding |
Pinout & Package
1N6280A-E3/54 uses a two-terminal axial-leaded DO-201AD package (Case Style 1.5KE), with cathode identified by a color band on the body. Leads are matte tin-plated and solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential side of protected circuit; used only during fault conditions or forward surge |
| Cathode (banded end) | Clamping node during reverse transient | Connected to protected line; avalanche conduction begins here when VLINE exceeds VWM |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable, repeatable avalanche characteristics and long-term reliability under repeated surges |
| 1500 W peak pulse power (10/1000 µs) | Supports high-energy transients from inductive load switching or ESD coupling without degradation |
| Clamping ratio (VC/VBR) ≈ 1.32 | Minimizes overvoltage margin between clamping and breakdown - critical for protecting 24 V logic interfaces |
| Response time < 1 ns | Engages before most IC damage mechanisms initiate, preserving MOSFET gates and microcontroller I/O |
| JESD201 Class 1A whisker resistance | Prevents tin whisker growth in long-life applications such as industrial control and automotive ECUs |
Applications
| Automotive Sensor Interface Protection | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role: Primary clamping element placed across supply rail or signal line to shunt surge current away from sensitive ICs. Use Value: Limits transient voltage to ≤33.2 V during 45.2 A surges, preventing gate oxide rupture in 3.3 V/5 V interface ICs and ensuring ASIL-B functional safety compliance. |
Use Scenario: Safeguarding 24 V digital input channels in programmable logic controllers exposed to relay coil flyback and field wiring transients. IC Role / Device Role: Standoff-and-clamp protector mounted at connector entry point, upstream of optocoupler or Schmitt trigger input stage. Use Value: Maintains 20.5 V working voltage margin while clamping 1 kV/1 A transients per IEC 61000-4-5 Level 3, reducing false triggering and component wear. |
| Telecom Power Supply Rail Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Securing +48 V DC-DC converter outputs in base station power systems against lightning-induced surges on remote feed lines. IC Role / Device Role: Secondary-level TVS placed after primary MOVs to handle residual fast-rising edges and provide precise voltage limiting. Use Value: Delivers 1500 W pulse handling with <1 ns response, complementing slower primary protectors and preserving downstream DC-DC controller ICs. |
Use Scenario: Shielding microcontroller GPIO and H-bridge driver ICs in washing machine motor control boards from commutation spikes. IC Role / Device Role: Localized clamp on motor phase lines and VDD rails to suppress inductive kickback from brushed DC motors. Use Value: Withstands 200 A non-repetitive forward surge (8.3 ms), enabling direct placement near motor drivers without external series impedance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24A | DO-214AA package (SMB), 24 V VWM, 38.9 V VC @ 38.8 A, 600 W PPPM | Lower power rating and higher clamping voltage; suited for space-constrained PCBs where 1500 W is not required | Select SMBJ24A when board area is limited and surge energy is ≤600 W; verify thermal relief due to higher RθJA |
| 1.5KE24A | Same electrical specs and DO-201AD package; differs only in packaging suffix (E3/54 = tape-and-reel, standard 1.5KE24A may be bulk or alternate reel) | No functional or application difference - identical performance, qualification, and mounting | 1.5KE24A is a direct form-fit-function match; E3/54 denotes RoHS-compliant tape-and-reel delivery (1400 pcs/reel) |
Compared with SMBJ24A, 1N6280A-E3/54 delivers 2.5× higher pulse power and tighter clamping for demanding industrial surges; compared with 1.5KE24A, it shares identical silicon and package but guarantees traceable RoHS-compliant sourcing and JESD201 Class 1A whisker resistance via the -E3/54 ordering code.
Availability
1N6280A-E3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC inputs, and telecom power supply rails requiring stable component supply, consistent RoHS compliance, and verified surge performance across production batches.
Supply support for 1N6280A-E3/54 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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices, with emphasis on reliability, precision, and application-specific ruggedness.
The 1N6280A-E3/54 belongs to Vishay's TRANSZORB® family of high-power TVS diodes, engineered specifically for industrial, automotive, and telecom systems needing sub-nanosecond response and repeatable 1500 W surge immunity.
FAQ
What is the breakdown voltage range for the 1N6280A-E3/54?
The 1N6280A-E3/54 has a guaranteed breakdown voltage (VBR) range of 22.8 V to 25.2 V at a test current of 1 mA, measured per JEDEC standard. This tight tolerance ensures predictable clamping onset in 24 V system designs and avoids premature conduction during normal operation. The specification is validated across temperature and production lots per Vishay Document 88301.
Is the 1N6280A-E3/54 bidirectional or unidirectional?
The 1N6280A-E3/54 is strictly unidirectional. Its cathode is marked with a color band, and it conducts only in reverse avalanche mode during overvoltage events. Bidirectional variants use the "CA" suffix (e.g., 1.5KE24CA); no CA version exists for this breakdown voltage in the 1.5KE family per Vishay's official documentation.
What is the maximum clamping voltage of the 1N6280A-E3/54 under surge conditions?
The 1N6280A-E3/54 clamps to a maximum of 33.2 V when subjected to its rated peak pulse current of 45.2 A using the standard 10/1000 µs waveform. This value is measured at the device terminals and represents the upper limit of voltage seen by downstream components during worst-case transient events.
Does the 1N6280A-E3/54 meet automotive qualification standards?
The 1N6280A-E3/54 is commercial grade and not AEC-Q101 qualified. For automotive applications, Vishay offers the HE3 variant (e.g., 1.5KE24AHE3_B), which carries AEC-Q101 qualification. The -E3/54 suffix indicates RoHS compliance and JESD201 Class 1A whisker resistance, but not automotive stress testing.
What package type and lead finish does the 1N6280A-E3/54 use?
The 1N6280A-E3/54 uses the DO-201AD package (Case Style 1.5KE) with 0.375" lead length and matte tin-plated leads. It complies with J-STD-002 for solderability and JESD22-B102 for terminal strength. The E3 suffix confirms RoHS compliance and JESD201 Class 1A whisker resistance per Vishay specification 88301.
1N6280A-E3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 20.5V
- Voltage - Breakdown (Min):
- 22.8V
- Voltage - Clamping (Max) @ Ipp:
- 33.2V
- Current - Peak Pulse (10/1000µs):
- 45.2A
- 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
1N6280A-E3/54 FAQ
1.How can I place an order for 1N6280A-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6280A-E3/54 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 1N6280A-E3/54 reliable?
The price and inventory of 1N6280A-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6280A-E3/54 is usually 5 days.
3.What payment methods are accepted for 1N6280A-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6280A-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6280A-E3/54?
1N6280A-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6280A-E3/54 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 1N6280A-E3/54?
For technical support, including 1N6280A-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6280A-E3/54 requirements.
6.How does Aetrix verify that 1N6280A-E3/54 is sourced from the original manufacturer or authorized distributors?
All 1N6280A-E3/54 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 1N6280A-E3/54 meets industry standards.
7.What is the process for return or replacement of 1N6280A-E3/54?
All 1N6280A-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6280A-E3/54, 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 1N6280A-E3/54 part is unused and in its original packaging.
Return procedure for 1N6280A-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6280A-E3/54 Tags
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