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Vishay General Semiconductor - Diodes Division 1.5KE480-E3/54
- Part No.:
- 1.5KE480-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE480-E3/54.pdf
- Description:
- TVS DIODE 389VWM 686VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:4,183
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Product details
Overview
1.5KE480-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for high-energy surge protection in DC power lines and signal paths. It features a 456 V to 504 V breakdown voltage (VBR), 408 V maximum standoff voltage (VWM), 658 V clamping voltage (VC) at 2.28 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 lightning-induced transients in industrial power supplies.
For engineers reviewing the 1.5KE480-E3/54 datasheet, 1.5KE480-E3/54 pinout, 1.5KE480-E3/54 application, or 1.5KE480-E3/54 equivalent, key selection criteria include clamping voltage margin relative to protected circuit's absolute maximum rating, thermal derating above 25 °C ambient, lead-free RoHS compliance (E3 suffix), and compatibility with 13" paper tape and reel delivery (package code 54).
Technical Context
This TVS diode uses a glass-passivated silicon junction optimized for fast transient response (<1 ns) and low incremental surge resistance. Its unidirectional polarity enables integration into DC-biased circuits where reverse conduction must be blocked until clamping threshold is exceeded.
The device delivers 1500 W peak pulse power under standardized 10/1000 µs waveform conditions with 0.01% duty cycle, and exhibits a temperature coefficient of VBR of +0.110 %/°C - critical for stable clamping performance across wide operating temperatures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 456 V to 504 V - ensures reliable triggering above system operating voltage while avoiding false clamping during normal transients |
| VWM | 408 V - maximum continuous reverse working voltage before leakage exceeds 1 µA, defining safe DC bias limit |
| VC @ IPPM | 658 V - clamping voltage at 2.28 A peak pulse current, directly limiting stress on downstream components |
| PPPM | 1500 W - peak surge energy absorption capability per 10/1000 µs pulse, enabling robust lightning strike protection |
| TJ max. | +175 °C - high-temperature junction rating supports operation in enclosed industrial enclosures without forced cooling |
| RθJA | 75 °C/W - thermal resistance from junction to ambient, used to calculate allowable power dissipation at elevated ambient temperatures |
Pinout & Package
Package: Case Style 1.5KE - molded epoxy body with matte tin-plated leads, UL 94 V-0 rated, RoHS compliant (E3 suffix), 0.968 g unit weight, compatible with J-STD-002 solderability and JESD 201 Class 1A whisker testing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected circuit; conducts only during forward surge events (e.g., reverse polarity misconnection) |
| Cathode | Clamping reference terminal | Marked with color band; connected to higher-potential side; initiates avalanche breakdown when reverse voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR tolerance and long-term reliability under repeated surge stress without parameter drift |
| 1500 W peak pulse power | Supports IEC 61000-4-5 Level 4 (4 kV line-to-line) surge immunity without external series impedance |
| Fast response time <1 ns | Clamps transients before sensitive ICs experience overvoltage damage, outperforming MOVs and GDTs |
| Low incremental surge resistance | Minimizes voltage overshoot during rapid current rise, improving clamping precision for fast-rising ESD/lightning edges |
Applications
| Industrial Power Supply Protection | Automotive Body Control Module |
|---|---|
Use Scenario: Protects 400 V DC bus in DIN-rail mounted PLC power inputs against induced surges from nearby motor switching. IC Role / Device Role / Timing Role: Unidirectional TVS placed across input terminals to clamp positive-going transients while blocking reverse leakage during normal operation. Use Value: Limits transient voltage to ≤658 V, maintaining 20% margin below 800 V MOSFET drain-source breakdown rating. | Use Scenario: Shields LIN bus transceiver supply rail in BCM against load dump and jump-start transients. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing 1500 W pulses without degradation, ensuring >100,000 surge cycles per vehicle lifetime. Use Value: Withstands 40 V/100 ms load dump per ISO 7637-2 while maintaining <1 µA leakage at 408 V standby. |
| Telecom Remote Radio Unit | Renewable Energy Inverter DC Link |
Use Scenario: Guards PoE-powered remote radio unit front-end against lightning-induced surges on outdoor Ethernet cabling. IC Role / Device Role / Timing Role: Primary clamping device on DC input rail, coordinated with secondary filtering to meet ITU-T K.20/21 immunity requirements. Use Value: Clamps 10/1000 µs surges to 658 V within 1 ns, preventing latch-up in 5 V LDO regulators downstream. | Use Scenario: Protects 600 V DC link capacitor bank in solar string inverters from grid-switching transients. IC Role / Device Role / Timing Role: High-voltage TVS placed between DC+ and DC− rails to suppress common-mode surges exceeding 5 kV. Use Value: Operates up to +175 °C junction temperature, enabling direct mounting on heatsink near IGBT modules without thermal derating loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ480A | Lower PPPM (600 W), smaller SMB package (vs. DO-201AB), 670 V VC at 1.2 A | Targeted for space-constrained PCBs; insufficient for 1500 W IEC 61000-4-5 Level 4 compliance | Select when board area is critical and surge energy is ≤600 W; not drop-in for 1.5KE480-E3/54's power class |
| 1.5KE480AHE3_B | Same electrical specs, but AEC-Q101 qualified and HE3 whisker-tested (Class 2), B revision code | Required for automotive under-hood applications demanding qualification traceability and enhanced reliability | Choose for automotive OEM designs requiring AEC-Q101 certification; otherwise 1.5KE480-E3/54 suffices for industrial use |
Compared with SMBJ480A and 1.5KE480AHE3_B, the 1.5KE480-E3/54 provides full 1500 W surge handling in a proven DO-201AB package with commercial-grade RoHS compliance - optimal for cost-sensitive industrial power systems where AEC-Q101 is unnecessary and space allows larger case size.
Availability
1.5KE480-E3/54 is available at Aetrix Electronics and suitable for industrial power supplies, telecom infrastructure equipment, renewable energy inverters, and automotive electronics requiring stable component supply with consistent parametric performance and RoHS-compliant packaging.
Supply support for 1.5KE480-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 is a global leader in discrete semiconductors, specializing in diodes, rectifiers, and protection devices with emphasis on reliability, power handling, and automotive qualification.
The 1.5KE family was engineered for high-energy transient suppression in harsh environments, targeting industrial, telecom, and automotive applications where sustained surge immunity and thermal stability are mission-critical.
FAQ
What is the clamping voltage of the 1.5KE480-E3/54 under maximum rated surge current?
The 1.5KE480-E3/54 has a maximum clamping voltage (VC) of 658 V at its rated peak pulse current (IPPM) of 2.28 A, measured using the standard 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during a full-power transient event and is confirmed in Vishay's datasheet Document Number 88301, page 2.
Is the 1.5KE480-E3/54 RoHS compliant and lead-free?
Yes, the 1.5KE480-E3/54 is RoHS compliant and lead-free, as indicated by the "E3" suffix per Vishay's ordering nomenclature. It meets JESD 201 Class 1A whisker test requirements and is manufactured with matte tin-plated leads compliant with J-STD-002 solderability standards.
Can the 1.5KE480-E3/54 be used in bidirectional configurations?
No, the 1.5KE480-E3/54 is a unidirectional TVS diode. Bidirectional variants in the 1.5KE family are designated with a "CA" suffix (e.g., 1.5KE220CA) and are only available up to 220 V VBR; the 480 V rating is unidirectional-only per Vishay's datasheet note on page 1.
What is the maximum operating junction temperature for the 1.5KE480-E3/54?
The 1.5KE480-E3/54 has a maximum operating junction temperature (TJ) of +175 °C, enabling reliable operation in high-temperature industrial enclosures or near heat-generating components such as power MOSFETs or IGBTs without thermal shutdown.
How does the 1.5KE480-E3/54 differ from the 1.5KE480AHE3_B variant?
The 1.5KE480-E3/54 is commercial-grade with Class 1A whisker testing, while 1.5KE480AHE3_B adds AEC-Q101 qualification and Class 2 whisker testing (JESD 201). Both share identical electrical parameters, but only the HE3_B version is approved for automotive under-hood applications requiring formal qualification traceability.
1.5KE480-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 389V
- Voltage - Breakdown (Min):
- 432V
- Voltage - Clamping (Max) @ Ipp:
- 686V
- Current - Peak Pulse (10/1000µs):
- 2.19A
- 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
1.5KE480-E3/54 FAQ
1.How can I place an order for 1.5KE480-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE480-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 1.5KE480-E3/54 reliable?
The price and inventory of 1.5KE480-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 1.5KE480-E3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE480-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE480-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE480-E3/54?
1.5KE480-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE480-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 1.5KE480-E3/54?
For technical support, including 1.5KE480-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE480-E3/54 requirements.
6.How does Aetrix verify that 1.5KE480-E3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE480-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 1.5KE480-E3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE480-E3/54?
All 1.5KE480-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE480-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 1.5KE480-E3/54 part is unused and in its original packaging.
Return procedure for 1.5KE480-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE480-E3/54 Tags
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