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Vishay General Semiconductor - Diodes Division 1N6280A-E3/73
- Part No.:
- 1N6280A-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1N6280A-E3/73.pdf
- Description:
- TVS DIODE 20.5VWM 33.2VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:9,516
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Product details
Overview
1N6280A-E3/73 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary-side overvoltage protection in DC power rails and signal lines. It features a 22.8 V to 25.2 V breakdown voltage (VBR), 20.5 V standoff voltage (VWM), 33.2 V clamping voltage (VC) at 45.2 A peak pulse current, 1500 W peak pulse power (10/1000 µs), and operates across -55 °C to +175 °C junction temperature. It protects MOSFETs and ICs against inductive switching transients in industrial motor drives.
For engineers reviewing the 1N6280A-E3/73 datasheet, 1N6280A-E3/73 pinout, 1N6280A-E3/73 application, or 1N6280A-E3/73 equivalent, this page delivers verified electrical parameters, JEDEC 1.5KE package details, clamping performance under standardized surge waveforms, and direct alternatives with documented parameter differences for robust circuit protection design.
Technical Context
This unidirectional TVS diode uses a glass-passivated silicon junction optimized for fast transient response (<1 ns) and low incremental surge resistance. Its clamping behavior is characterized by a 33.2 V maximum VC at IPPM = 45.2 A under 10/1000 µs waveform, with thermal resistance RθJL = 15.4 °C/W enabling effective lead-based heat dissipation.
The device complies with JEDEC standard 1.5KE case style, supports 200 A non-repetitive forward surge current (IFSM), and exhibits a temperature coefficient of VBR = 0.094 %/°C - critical for stable clamping across automotive and industrial ambient ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 22.8 V / 25.2 V - ensures reliable conduction onset above normal operating voltage while avoiding false triggering |
| VWM | 20.5 V - maximum continuous reverse working voltage before leakage exceeds 1 µA |
| VC @ IPPM | 33.2 V at 45.2 A - limits downstream component stress during 10/1000 µs surges |
| PPPM | 1500 W - sustains high-energy transients without failure per industry-standard waveform |
| IFSM | 200 A - withstands 8.3 ms half-sine surge pulses common in motor drive and relay switching |
| Junction Temp Range | -55 °C to +175 °C - supports operation in under-hood automotive and high-temp industrial environments |
| Package | JEDEC 1.5KE - axial-lead molded epoxy 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; 0.375" (9.5 mm) lead length; meets J-STD-002 solderability and JESD 201 Class 1A whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias | Connected to ground or low-side reference in unidirectional clamp configuration |
| Cathode (banded end) | Current exit point in forward bias; high-impedance terminal in reverse standby | Connected to protected line (e.g., 24 V rail); conducts when VLINE > VC during surge |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable VBR tolerance (±5 %) and long-term reliability under thermal cycling |
| 1500 W peak pulse power (10/1000 µs) | Handles high-energy ESD and lightning-induced surges without degradation |
| Clamping voltage ≤33.2 V at 45.2 A | Protects 24 V logic interfaces and gate drivers by limiting transient overshoot below 35 V |
| Response time <1 ns | Activates before sensitive CMOS inputs or MOSFET gates experience damaging overvoltage |
| AEC-Q101 qualified option available | HE3 suffix variants meet automotive-grade stress testing for under-hood applications |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Protection of 24 V DC power input against inductive kickback from solenoid valves and relay coils. IC Role / Device Role: Unidirectional TVS placed between VIN and GND to clamp transients exceeding 20.5 V. Use Value: Limits voltage excursion to ≤33.2 V during 45.2 A surges, preventing damage to upstream DC-DC controllers and microcontrollers. |
Use Scenario: Guarding LIN bus transceiver supply pins against load-dump and jump-start events. IC Role / Device Role: Standoff-rated TVS on 12 V supply rail feeding LIN PHY ICs. Use Value: Maintains system uptime by suppressing 10/1000 µs transients up to 1500 W without latch-up or parametric shift. |
| Telecom Power Feeds | Consumer Appliance Control Boards |
Use Scenario: Input-stage surge suppression on 48 V PoE-powered equipment front-ends. IC Role / Device Role: Primary-level TVS on DC input before isolation and regulation stages. Use Value: Withstands repetitive 10/1000 µs surges at 0.01 % duty cycle, ensuring multi-year field reliability. |
Use Scenario: Protecting microcontroller I/O pins connected to push-button or sensor interfaces subject to ESD. IC Role / Device Role: Localized unidirectional TVS on 3.3 V or 5 V signal lines. Use Value: Fast sub-nanosecond response prevents latch-up in ARM Cortex-M0+ peripherals during human-handling ESD events. |
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 | Lower PPPM (600 W), smaller SMB package (vs. axial 1.5KE), VC = 38.9 V @ 15.4 A | Better suited for space-constrained PCBs; less robust for high-energy industrial surges | Select when board area is limited and surge energy remains below 600 W. |
| 1.5KE24A | Same electrical specs and JEDEC 1.5KE package; differs only in packaging format (E3/73 = 750-piece tape-and-reel vs. E3/54 = 1400-piece reel) | Identical functional performance; identical mounting and thermal behavior | Choose based on procurement volume and assembly line feed requirements - no design change needed. |
Compared with SMBJ24A, 1N6280A-E3/73 delivers 2.5× higher surge power handling and lower clamping voltage per amp, making it preferable for industrial power rails; versus 1.5KE24A, it is functionally identical but supplied in a different reel quantity optimized for mid-volume SMT production.
Availability
1N6280A-E3/73 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, telecom power feeds, and consumer appliance control boards requiring stable component supply and long-term lifecycle support.
Supply support for 1N6280A-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, and protection devices with emphasis on reliability, power handling, and automotive qualification.
The 1N6280A-E3/73 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-energy transient suppression in harsh environments where fast response, repeatable clamping, and thermal resilience are mandatory.
FAQ
What is the breakdown voltage range of the 1N6280A-E3/73?
The 1N6280A-E3/73 has a guaranteed breakdown voltage (VBR) range of 22.8 V to 25.2 V at 1.0 mA test current, measured per JEDEC standards. This tight tolerance ensures predictable turn-on behavior during overvoltage events and aligns with 24 V system protection requirements. The 1N6280A-E3/73 maintains this specification across its full operating temperature range.
Is the 1N6280A-E3/73 unidirectional or bidirectional?
The 1N6280A-E3/73 is a unidirectional TVS diode, indicated by the "A" suffix and presence of a cathode band. It conducts only when the cathode is positive relative to the anode, making it ideal for DC rail protection where polarity is fixed. Bidirectional variants (e.g., 1N6280CA) are separate part numbers and not interchangeable with the 1N6280A-E3/73.
What is the clamping voltage of the 1N6280A-E3/73 under surge conditions?
The 1N6280A-E3/73 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 per Figure 7 in the Vishay datasheet and represents the upper limit of voltage seen by downstream components during worst-case surge events - critical for validating safe operating margins of 24 V logic and power ICs.
Does the 1N6280A-E3/73 meet automotive qualification standards?
The base 1N6280A-E3/73 is commercial-grade and not AEC-Q101 qualified. However, Vishay offers the functionally identical 1N6280AHE3_B variant (with HE3 suffix and revision code B), which is fully AEC-Q101 qualified for automotive applications. Engineers requiring automotive compliance must specify the HE3 variant - the 1N6280A-E3/73 itself does not carry that qualification.
What package type does the 1N6280A-E3/73 use?
The 1N6280A-E3/73 uses the JEDEC-standard 1.5KE case style: an axial-leaded, molded epoxy package with 0.375" (9.5 mm) lead length, UL 94 V-0 flammability rating, and matte tin-plated leads compliant with J-STD-002. Its dimensions and lead form are identical to other 1.5KE-series TVS diodes, enabling drop-in replacement within the same family.
1N6280A-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):
- 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-E3/73 FAQ
1.How can I place an order for 1N6280A-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6280A-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 1N6280A-E3/73 reliable?
The price and inventory of 1N6280A-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 1N6280A-E3/73 is usually 5 days.
3.What payment methods are accepted for 1N6280A-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6280A-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6280A-E3/73?
1N6280A-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6280A-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 1N6280A-E3/73?
For technical support, including 1N6280A-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6280A-E3/73 requirements.
6.How does Aetrix verify that 1N6280A-E3/73 is sourced from the original manufacturer or authorized distributors?
All 1N6280A-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 1N6280A-E3/73 meets industry standards.
7.What is the process for return or replacement of 1N6280A-E3/73?
All 1N6280A-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6280A-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 1N6280A-E3/73 part is unused and in its original packaging.
Return procedure for 1N6280A-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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