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Vishay General Semiconductor - Diodes Division 1N6280AHE3/51
- Part No.:
- 1N6280AHE3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1N6280AHE3/51.pdf
- Description:
- TVS DIODE 20.5VWM 33.2VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:2,961
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Product details
Overview
1N6280AHE3/51 from Vishay General Semiconductor is a uni-directional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 24 V breakdown voltage (VBR = 22.8–25.2 V at 1.0 mA), 20.5 V maximum stand-off voltage (VWM), 33.2 V clamping voltage (VC) at 45.2 A peak pulse current, 1500 W peak pulse power (10/1000 µs), and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the 1N6280AHE3/51 datasheet, 1N6280AHE3/51 pinout, 1N6280AHE3/51 application, or 1N6280AHE3/51 equivalent, this part serves as a high-energy, fast-response (≈1 ns), glass-passivated TVS for protecting MOSFETs, ICs, and sensor interfaces against inductive switching transients and ESD in automotive and industrial systems.
Technical Context
This uni-directional TVS operates with a reverse-biased junction to clamp transient overvoltages above its stand-off voltage while maintaining low leakage (<1.0 µA at 20.5 V). Its 1500 W peak pulse rating is defined under standardized 10/1000 µs waveform conditions, with thermal derating governed by junction-to-lead resistance (RθJL = 15.4 °C/W) and ambient limits up to +175 °C.
The device uses a molded epoxy case (Case Style 1.5KE) with matte tin-plated leads compliant to J-STD-002 and JESD 22-B102, and meets UL 94 V-0 flammability. The HE3 suffix confirms RoHS compliance and AEC-Q101 qualification per revision A - verified for automotive electronics per JEDEC JESD47 stress testing protocols.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 22.8 V / 25.2 V at 1.0 mA - defines precise clamping onset threshold for reliable overvoltage detection |
| VWM | 20.5 V - maximum continuous reverse operating voltage before significant leakage begins |
| VC @ IPPM | 33.2 V at 45.2 A - clamped voltage during 1500 W transient, limiting stress on downstream components |
| PPPM | 1500 W (10/1000 µs) - energy-handling capacity sufficient for automotive load-dump and ISO 7637-2 pulse 5a |
| IFSM | 200 A (8.3 ms half-sine) - surge current capability supports repeated inductive turn-off events |
| TJ max | +175 °C - extended junction temperature enables under-hood and industrial control cabinet deployment |
| Leakage ID | <1.0 µA at VWM - negligible standby power loss and no interference with low-current sensor biasing |
Pinout & Package
Package: Case Style 1.5KE - axial-leaded, molded epoxy body (1.0" × 0.210" / 25.4 mm × 5.3 mm), UL 94 V-0 rated, matte tin-plated leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to system ground or lower-potential rail in uni-directional configuration |
| Cathode | Clamping terminal (marked with band) | Connected to protected line; conducts during overvoltage to shunt energy to ground |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable VBR tolerance and long-term reliability under thermal cycling and humidity stress |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive applications including engine control units, body electronics, and ADAS sensor interfaces |
| 1500 W peak pulse power | Withstands ISO 7637-2 Pulse 5a (load dump) without degradation when properly heatsinked |
| 1 ns response time | Clamps transients before sensitive ICs experience latch-up or gate oxide damage |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., EFT bursts per IEC 61000-4-4) |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V CAN bus power supply against load-dump transients in commercial vehicle ECUs. IC Role / Device Role: Primary clamping element placed between battery rail and DC-DC input stage. Use Value: Limits transient voltage to ≤33.2 V, preventing damage to 36 V-rated buck controllers and ensuring uninterrupted CAN communication. |
Use Scenario: Safeguarding analog output of pressure sensors in PLC I/O modules exposed to relay coil flyback. IC Role / Device Role: Fast-acting shunt suppressor on 4–20 mA loop supply line. Use Value: Clamps 600 V/1 A transients within 1 ns, preserving sensor accuracy and avoiding ADC saturation or op-amp latch-up. |
| Motor Drive Gate Driver Protection | Telecom Line Surge Protection |
Use Scenario: Shielding high-side N-channel MOSFET gate drivers in BLDC inverters from Miller-induced spikes. IC Role / Device Role: Uni-directional TVS across gate-source terminals to clamp negative-going undershoot. Use Value: Maintains VGS within ±20 V rating using 20.5 V VWM, preventing gate oxide breakdown during fast switching. |
Use Scenario: Front-end protection for PoE-powered Ethernet switches subjected to lightning-induced surges on data pairs. IC Role / Device Role: Standoff-rated TVS on secondary side of isolation transformers feeding PHY ICs. Use Value: Withstands 1500 W pulses without failure, enabling compliance with IEC 61000-4-5 Level 4 (4 kV/2 Ω) |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient 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 at 15.4 A | Better suited for space-constrained PCBs; insufficient for ISO 7637-2 Pulse 5a without parallel staging | Select SMBJ24A only when board area is critical and peak transient energy remains ≤600 W |
| 1.5KE24A-E3/54 | Same electrical specs and package, but commercial-grade (non-AEC-Q101), base P/N-E3 vs. HE3 | Lacks automotive qualification; not approved for under-hood or safety-critical modules | Choose 1.5KE24A-E3/54 for cost-sensitive industrial controls where AEC-Q101 is not mandated |
Compared with SMBJ24A and 1.5KE24A-E3/54, the 1N6280AHE3/51 uniquely delivers automotive-grade reliability (AEC-Q101), full 1500 W pulse handling in axial form factor, and tighter VBR tolerance - making it the only option qualified for direct replacement in OEM automotive power protection designs.
Availability
1N6280AHE3/51 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, motor drive gate driver safeguarding, telecom line surge suppression, and embedded control module transient resilience requiring stable component supply across multi-year production cycles.
Supply support for 1N6280AHE3/51 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 high-reliability diodes, rectifiers, and protection devices with emphasis on automotive, industrial, and computing applications.
The 1N6280AHE3/51 belongs to Vishay's TRANSZORB® family of TVS diodes - engineered specifically for robust, high-energy transient suppression in harsh environments where voltage-sensitive electronics require guaranteed clamping performance and long-term stability.
FAQ
What is the breakdown voltage range of the 1N6280AHE3/51?
The 1N6280AHE3/51 has a specified breakdown voltage (VBR) range of 22.8 V to 25.2 V at a test current of 1.0 mA. This tight tolerance ensures consistent clamping behavior across production lots and supports precise overvoltage margining in 24 V systems. The value is measured per JEDEC standard and confirmed in Vishay's 88301 datasheet revision.
Is the 1N6280AHE3/51 suitable for automotive applications?
Yes, the 1N6280AHE3/51 is AEC-Q101 qualified (as indicated by the HE3 suffix and documented in Vishay's 88301 datasheet), making it suitable for automotive applications including engine control units, body electronics, and ADAS sensor interfaces. Its +175 °C maximum junction temperature and validated stress-test performance meet OEM requirements for under-hood deployment.
What does the "HE3/51" suffix mean in 1N6280AHE3/51?
The "HE3" suffix denotes RoHS compliance and AEC-Q101 qualification per revision A, while "/51" specifies packaging in 13" diameter paper tape and reel with a base quantity of 1400 units. This ordering code aligns with Vishay's preferred delivery mode for automated SMT placement and ensures traceable, automotive-grade sourcing for production programs.
How does the clamping voltage of the 1N6280AHE3/51 compare to its stand-off voltage?
The 1N6280AHE3/51 has a maximum stand-off voltage (VWM) of 20.5 V and a clamping voltage (VC) of 33.2 V at 45.2 A. This 12.7 V differential provides adequate margin to avoid false triggering during normal operation while ensuring effective suppression of transients exceeding 20.5 V - critical for protecting 24 V logic and power stages.
Can the 1N6280AHE3/51 be used in bi-directional configurations?
No, the 1N6280AHE3/51 is a uni-directional TVS diode, identifiable by its cathode band marking. For bi-directional protection, Vishay offers the 1N6280CA variant (or 1.5KE24CA), which lacks polarity marking and clamps symmetrically in both directions. Using the uni-directional 1N6280AHE3/51 in reverse-biased AC applications risks permanent failure.
1N6280AHE3/51 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):
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1N6280AHE3/51 FAQ
1.How can I place an order for 1N6280AHE3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6280AHE3/51 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 1N6280AHE3/51 reliable?
The price and inventory of 1N6280AHE3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6280AHE3/51 is usually 5 days.
3.What payment methods are accepted for 1N6280AHE3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6280AHE3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6280AHE3/51?
1N6280AHE3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6280AHE3/51 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 1N6280AHE3/51?
For technical support, including 1N6280AHE3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6280AHE3/51 requirements.
6.How does Aetrix verify that 1N6280AHE3/51 is sourced from the original manufacturer or authorized distributors?
All 1N6280AHE3/51 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 1N6280AHE3/51 meets industry standards.
7.What is the process for return or replacement of 1N6280AHE3/51?
All 1N6280AHE3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6280AHE3/51, 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 1N6280AHE3/51 part is unused and in its original packaging.
Return procedure for 1N6280AHE3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6280AHE3/51 Tags
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