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Vishay General Semiconductor - Diodes Division 1.5KE510A-E3/54
- Part No.:
- 1.5KE510A-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE510A-E3/54.pdf
- Description:
- TVS DIODE 434VWM 698VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:3,271
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Product details
Overview
1.5KE510A-E3/54 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode designed for high-energy surge protection in power rails and signal lines. It features a 510 V breakdown voltage (VBR = 485–535 V at 1 mA), 434 V maximum working voltage (VWM), 698 V clamping voltage (VC) at 2.15 A, 1500 W peak pulse power (10/1000 µs), and operates across –55 °C to +175 °C junction temperature. It protects MOSFETs and ICs in industrial power supplies against lightning-induced transients.
For engineers reviewing the 1.5KE510A-E3/54 datasheet, 1.5KE510A-E3/54 pinout, 1.5KE510A-E3/54 application, or 1.5KE510A-E3/54 equivalent, this part delivers verified clamping performance for high-voltage DC bus protection, meets JEDEC 1.5KE package standards, supports RoHS-compliant reflow and wave soldering, and is validated for commercial-grade reliability without AEC-Q101 qualification.
Technical Context
This unidirectional TVS diode uses a glass-passivated silicon junction optimized for fast response (<1 ns) and low incremental surge resistance. Its clamping action begins at VBR = 485–535 V and limits transient voltage to ≤698 V at 2.15 A IPPM under 10/1000 µs waveform - critical for safeguarding 480–600 V nominal systems.
It dissipates 6.5 W continuously on an infinite heatsink at TL = 75 °C, with thermal resistance RθJA = 75 °C/W and RθJL = 15.4 °C/W. The device exhibits no marking polarity band (cathode denoted by color band per standard), and VF = 5.0 V at 100 A forward surge - consistent with 1.5KE250A and above variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 485 V / 535 V at 1 mA - defines precise voltage threshold where avalanche conduction initiates |
| VWM | 434 V - maximum continuous reverse operating voltage before leakage exceeds 1 µA |
| VC @ IPPM | 698 V at 2.15 A - clamped voltage during 10/1000 µs surge, limiting stress on downstream components |
| PPPM | 1500 W - peak transient power handling capability, enabling protection against IEC 61000-4-5 Level 4 surges |
| TJ range | –55 °C to +175 °C - supports operation in harsh environments including industrial motor drives and outdoor power converters |
| IFSM | 200 A - non-repetitive forward surge current rating (8.3 ms half-sine), relevant for fault-clearing scenarios |
| Package | JEDEC DO-201AD (Case Style 1.5KE) - axial-leaded, epoxy-molded, UL 94 V-0 compliant housing |
Pinout & Package
1.5KE510A-E3/54 uses the standard DO-201AD axial package (Case Style 1.5KE), with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. Polarity is marked by a cathode band; unidirectional operation requires correct orientation in series with protected circuitry.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Surge return path | Connected to ground or low-impedance return when protecting positive rail; must handle 200 A surge |
| Cathode | Avalanche conduction node / Clamping reference | Connected to protected line; initiates conduction at ≥485 V to shunt energy away from load |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable, repeatable avalanche characteristics over lifetime and temperature cycling |
| 1500 W peak pulse power (10/1000 µs) | Supports robust immunity to high-energy transients such as induced lightning on AC/DC distribution lines |
| Clamping ratio (VC/VBR) ≈ 1.45 | Indicates efficient voltage limiting - lower ratio reduces stress margin required for protected ICs |
| Response time < 1 ns | Ensures protection activation before sensitive MOSFETs or gate drivers experience overvoltage damage |
| RoHS-compliant E3 suffix | Meets JESD 201 Class 1A whisker test and lead-free assembly requirements for industrial PCBs |
Applications
| Industrial Motor Drives | Telecom Power Feeds |
|---|---|
|
Use Scenario: Protection of DC link capacitors and IGBT gate drivers against switching-induced voltage spikes and utility-side surges in variable-frequency drives. IC Role / Device Role / Timing Role: Unidirectional clamping device placed across +BUS/GND to clamp transients exceeding 434 V before reaching power stage components. Use Value: Limits peak voltage to ≤698 V during 1500 W surges, preserving IGBT safe operating area and extending system MTBF in factory automation environments. |
Use Scenario: Surge suppression on -48 V telecom rectifier outputs feeding remote radio units and base station controllers. IC Role / Device Role / Timing Role: Standoff protector on primary DC feed line, absorbing longitudinal surges from outdoor cable runs without affecting steady-state regulation. Use Value: Maintains 434 V working voltage margin while clamping 10/1000 µs transients to 698 V - compatible with -48 V nominal systems with ±15 % tolerance. |
| Renewable Energy Inverters | High-Voltage Test Equipment |
|
Use Scenario: Overvoltage protection on PV string inputs and DC bus of grid-tied solar inverters exposed to lightning-induced common-mode transients. IC Role / Device Role / Timing Role: Primary transient shunt on input stage, coordinated with MOVs to handle both fast and high-energy events. Use Value: Provides sub-nanosecond response to complement slower MOVs, reducing let-through energy to <10 mJ and preventing gate oxide failure in MPPT controllers. |
Use Scenario: Calibration-grade transient suppression in high-voltage probe circuits and insulation resistance testers operating up to 600 V DC. IC Role / Device Role / Timing Role: Precision clamping element in feedback or sensing paths where leakage and stability are critical. Use Value: Delivers <1 µA leakage at 434 V and stable VBR tolerance (±5 %), ensuring measurement integrity during high-potential stress tests. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ510A | DO-214AA package, 510 V VBR, 645 V VC @ 2.3 A, 600 W PPPM | Lower power rating and surface-mount format - suited for space-constrained PCBs but not direct replacement for high-energy 1500 W needs | Select SMBJ510A only when board layout prohibits axial components and surge energy is limited to IEC 61000-4-5 Level 3. |
| 1.5KE510CA | Bidirectional variant, same VBR/VC/PPPM, symmetric clamping in both polarities | Required for AC-coupled or floating-bus protection where polarity reversal occurs (e.g., Ethernet PHY interfaces) | Choose 1.5KE510CA only when bidirectional clamping is mandated; 1.5KE510A-E3/54 remains optimal for fixed-polarity DC bus protection. |
Compared with SMBJ510A, 1.5KE510A-E3/54 provides 2.5× higher peak pulse power and axial mounting for high-current thermal relief; versus 1.5KE510CA, it offers lower capacitance and simpler biasing in unidirectional DC systems - making it the preferred choice for industrial power rail protection where polarity is fixed and energy levels exceed 1 kW.
Availability
1.5KE510A-E3/54 is available at Aetrix Electronics and suitable for industrial motor drives, telecom power feeds, and renewable energy inverters requiring stable component supply, long-term manufacturability, and RoHS-compliant procurement.
Supply support for 1.5KE510A-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/industrial qualification.
The 1.5KE series was engineered for high-energy transient suppression in mains-connected equipment, targeting applications where robustness, repeatable clamping, and wide temperature operation are mandatory - not general-purpose signal-level protection.
FAQ
What is the breakdown voltage tolerance for 1.5KE510A-E3/54?
The 1.5KE510A-E3/54 has a specified breakdown voltage range of 485 V to 535 V at 1 mA test current, representing a ±5 % tolerance about the nominal 510 V rating. This tight VBR window ensures predictable clamping onset across production lots and temperature extremes, critical for coordinating with upstream fuses or downstream overvoltage detectors in 480–600 V systems.
Is 1.5KE510A-E3/54 qualified to AEC-Q101?
No, 1.5KE510A-E3/54 is a commercial-grade device and is not AEC-Q101 qualified. Per Vishay documentation, AEC-Q101 qualification applies only to 1.5KE6.8AHE3_B through 1.5KE220AHE3_B and corresponding CA variants - the 1.5KE510A-E3/54 falls outside that qualified range and is intended for industrial, telecom, and renewable energy applications where automotive qualification is not required.
What is the maximum clamping voltage of 1.5KE510A-E3/54 under surge conditions?
The maximum clamping voltage (VC) of 1.5KE510A-E3/54 is 698 V, measured at a peak pulse current (IPPM) of 2.15 A using the standardized 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during worst-case transient events and directly determines the voltage stress margin for downstream MOSFETs, gate drivers, and bus capacitors.
Can 1.5KE510A-E3/54 be used in bidirectional configurations?
No, 1.5KE510A-E3/54 is strictly unidirectional. Bidirectional variants in the 1.5KE family are designated with a "CA" suffix (e.g., 1.5KE510CA) and are only available up to 1.5KE220CA per Vishay's datasheet notes. Using 1.5KE510A-E3/54 in reverse-biased mode risks permanent junction damage due to lack of symmetrical avalanche design - always verify polarity during PCB layout and assembly.
What is the thermal resistance of 1.5KE510A-E3/54 from junction to ambient?
The typical thermal resistance from junction to ambient (RθJA) for 1.5KE510A-E3/54 is 75 °C/W under standard test conditions (free-air, no heatsink). This value informs derating calculations: for example, at 25 °C ambient, the device can sustain ~6.5 W continuously only if junction temperature remains ≤175 °C - underscoring the need for adequate copper pour or heatsinking in high-duty-cycle applications.
1.5KE510A-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):
- 434V
- Voltage - Breakdown (Min):
- 485V
- Voltage - Clamping (Max) @ Ipp:
- 698V
- Current - Peak Pulse (10/1000µs):
- 2.15A
- 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
1.5KE510A-E3/54 FAQ
1.How can I place an order for 1.5KE510A-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE510A-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 1.5KE510A-E3/54 reliable?
The price and inventory of 1.5KE510A-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 1.5KE510A-E3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE510A-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE510A-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE510A-E3/54?
1.5KE510A-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE510A-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 1.5KE510A-E3/54?
For technical support, including 1.5KE510A-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE510A-E3/54 requirements.
6.How does Aetrix verify that 1.5KE510A-E3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE510A-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 1.5KE510A-E3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE510A-E3/54?
All 1.5KE510A-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE510A-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 1.5KE510A-E3/54 part is unused and in its original packaging.
Return procedure for 1.5KE510A-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE510A-E3/54 Tags
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