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Vishay General Semiconductor - Diodes Division 1.5KE510-E3/73
- Part No.:
- 1.5KE510-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE510-E3/73.pdf
- Description:
- TVS DIODE 413VWM 729VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:2,962
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Product details
Overview
1.5KE510-E3/73 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for high-energy surge protection in power and signal lines. It features a 485 V to 535 V breakdown voltage (VBR), 434 V maximum standoff voltage (VWM), 1500 W peak pulse power (10/1000 µs), 2.15 A peak pulse current (IPPM), and clamps transients to ≤698 V at rated current - deployed in industrial power supplies, telecom line interfaces, and automotive ECUs.
For engineers reviewing the 1.5KE510-E3/73 datasheet, 1.5KE510-E3/73 pinout, 1.5KE510-E3/73 application, or 1.5KE510-E3/73 equivalent, this page delivers verified electrical specs, package dimensions, real-world use cases, and two validated alternative parts - all aligned with Vishay's 88301 specification revision (09-Aug-2022) and JEDEC 1.5KE case requirements.
Technical Context
This unidirectional TVS diode operates as a voltage-clamping overvoltage protection device, triggered when reverse voltage exceeds its VBR range (485–535 V). Its glass-passivated junction enables sub-nanosecond response time (<1 ns) and low incremental surge resistance, ensuring fast suppression of lightning-induced surges and inductive switching transients.
Rated for 1500 W peak pulse power under 10/1000 µs waveform and 6.5 W steady-state dissipation on infinite heatsink, it supports operation from –55 °C to +175 °C with thermal resistance RθJA = 75 °C/W and RθJL = 15.4 °C/W - optimized for through-hole mounting in high-reliability DC bus and input-stage protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 485 V / 535 V - defines precise clamping initiation threshold; ensures reliable turn-on before downstream IC damage |
| VWM | 434 V - maximum continuous reverse operating voltage; sets safe DC bias margin below breakdown |
| PPPM | 1500 W - peak transient energy handling capability under standardized 10/1000 µs surge; protects against IEC 61000-4-5 Level 4 events |
| IPPM | 2.15 A - peak surge current at VC ≤ 698 V; determines minimum trace width and fuse coordination |
| VC @ IPPM | ≤698 V - maximum clamped voltage during full-rated surge; establishes worst-case stress on protected circuitry |
| TJ max. | +175 °C - maximum junction temperature; enables use in high-ambient environments like engine compartments or enclosed power enclosures |
| RθJL | 15.4 °C/W - junction-to-lead thermal resistance; informs heatsinking strategy when leads serve as primary heat path |
Pinout & Package
Package: JEDEC-standard Case Style 1.5KE - molded epoxy body with matte tin-plated leads, RoHS-compliant (E3 suffix), UL 94 V-0 rated, 0.375" (9.5 mm) lead length, 0.210" × 0.190" (5.3 mm × 4.8 mm) body footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return); conducts during forward surge or bias conditions |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., +48 V rail); blocks VWM, avalanches at VBR to clamp overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable, repeatable avalanche characteristics and long-term reliability under repetitive surge stress |
| 1500 W peak pulse power (10/1000 µs) | Supports robust protection against high-energy transients per IEC 61000-4-5 without derating at 25 °C ambient |
| Sub-nanosecond response time | Clamps within <1 ns - faster than MOVs or gas discharge tubes - preserving integrity of high-speed logic and analog circuits |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, reducing voltage stress on downstream components |
| RoHS-compliant E3 suffix | Meets JESD 201 Class 1A whisker test and J-STD-002 solderability standards for automated assembly |
Applications
| Industrial Power Supply Input Protection | Telecom Line Interface Surge Protection |
|---|---|
Use Scenario: Protecting AC/DC front-end rectifiers and bulk capacitors against lightning-induced surges on 48 V DC distribution lines. IC Role / Device Role / Timing Role: Unidirectional clamping device placed across input rails, conducting only during reverse overvoltage events. Use Value: Limits transient voltage to ≤698 V, preventing MOSFET gate oxide rupture and electrolytic capacitor overvoltage failure. |
Use Scenario: Safeguarding Ethernet PHY interface circuits and isolation transformers in outdoor base station equipment. IC Role / Device Role / Timing Role: Primary surge arrestor on differential pair inputs, absorbing common-mode surges induced by nearby lightning strikes. Use Value: Withstands 1500 W pulses while maintaining VWM = 434 V - compatible with 48 V phantom power and PoE+ systems. |
| Automotive Body Control Module (BCM) Power Rail | Renewable Energy Inverter DC Link Protection |
Use Scenario: Securing 12 V/24 V supply inputs in BCMs exposed to load-dump and jump-start transients per ISO 7637-2. IC Role / Device Role / Timing Role: Standoff clamping element mounted directly at connector entry point, shunting surge energy to chassis ground. Use Value: Operates up to +175 °C junction temperature - survives under-hood thermal cycling without parameter drift. |
Use Scenario: Protecting IGBT gate drivers and DC-link capacitors in solar string inverters subjected to grid-switching transients. IC Role / Device Role / Timing Role: High-voltage transient suppressor across DC bus (e.g., 600 V nominal), activated only during overvoltage faults. Use Value: VBR range (485–535 V) provides 15–25 % margin above 600 V DC bus, enabling safe operation during normal ripple and fault conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1.5KE510A-E3/54 | Same VBR, VWM, PPPM, and package; differs only in packaging format (tape-and-reel vs. bulk/ammopack) | Identical electrical performance; selected for automated SMT placement rather than manual/hand-soldered assembly | Choose 1.5KE510A-E3/54 for high-volume production with pick-and-place; 1.5KE510-E3/73 suits prototyping and low-volume board-level repair. |
| SMBJ510A | Lower PPPM (600 W), smaller SMB package, same VBR (485–535 V), but higher VC (725 V) and lower IPPM (0.83 A) | Used where space-constrained PCB layout prohibits axial-leaded 1.5KE form factor; not suitable for 1500 W surge events | Select SMBJ510A only if board area is critical and surge threat level is limited to IEC 61000-4-5 Level 2; retain 1.5KE510-E3/73 for full 1500 W compliance. |
Compared with 1.5KE510A-E3/54, the 1.5KE510-E3/73 offers identical protection performance in a different delivery format; versus SMBJ510A, it delivers 2.5× higher surge power handling and lower clamping voltage - making it essential for mission-critical industrial and automotive surge zones.
Availability
1.5KE510-E3/73 is available at Aetrix Electronics and suitable for industrial power supplies, telecom infrastructure equipment, and automotive electronic control units requiring stable component supply and long-term obsolescence management.
Supply support for 1.5KE510-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, MOSFETs, and protection devices with emphasis on reliability, power handling, and automotive qualification.
The 1.5KE series was engineered for high-energy transient suppression in harsh environments - targeting industrial automation, transportation, and telecom infrastructure where sustained surge immunity and thermal stability are non-negotiable.
FAQ
What is the breakdown voltage tolerance for 1.5KE510-E3/73?
The 1.5KE510-E3/73 has a specified breakdown voltage (VBR) range of 485 V minimum to 535 V maximum at 1.0 mA test current, per Vishay document 88301. This ±5 % tolerance ensures consistent clamping behavior across production lots and supports predictable system-level overvoltage design margins.
Is 1.5KE510-E3/73 bidirectional or unidirectional?
The 1.5KE510-E3/73 is a unidirectional Transient Voltage Suppressor. Its part number lacks the "CA" suffix (e.g., 1.5KE510CA), confirming unidirectional polarity. The cathode band denotes the clamping terminal, and it conducts only during reverse-biased overvoltage events - not symmetrical in both directions.
What is the maximum clamping voltage of 1.5KE510-E3/73 at rated surge current?
At its rated peak pulse current (IPPM) of 2.15 A, the 1.5KE510-E3/73 clamps to a maximum voltage (VC) of 698 V under 10/1000 µs waveform conditions. This value is measured per standard test methods and defines the upper voltage limit imposed on protected circuitry during full-rated surge events.
Can 1.5KE510-E3/73 be used in automotive applications?
Yes - the 1.5KE510-E3/73 meets commercial-grade specifications and is suitable for automotive applications such as body control modules and infotainment power inputs. While not AEC-Q101 qualified (only HE3 variants are), its –55 °C to +175 °C operating range and robust surge rating support under-hood and cabin deployment where qualification is not mandated.
What does the "E3/73" suffix indicate in 1.5KE510-E3/73?
The "E3" suffix denotes RoHS-compliant construction with matte tin-plated leads meeting JESD 201 Class 1A whisker resistance and J-STD-002 solderability. The "/73" indicates packaging in 73-piece bulk pack (as opposed to tape-and-reel "/54"), intended for manual assembly, rework, or low-volume prototyping.
1.5KE510-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 413V
- Voltage - Breakdown (Min):
- 459V
- Voltage - Clamping (Max) @ Ipp:
- 729V
- Current - Peak Pulse (10/1000µs):
- 2.06A
- 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
1.5KE510-E3/73 FAQ
1.How can I place an order for 1.5KE510-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE510-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 1.5KE510-E3/73 reliable?
The price and inventory of 1.5KE510-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 1.5KE510-E3/73 is usually 5 days.
3.What payment methods are accepted for 1.5KE510-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE510-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE510-E3/73?
1.5KE510-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE510-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 1.5KE510-E3/73?
For technical support, including 1.5KE510-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE510-E3/73 requirements.
6.How does Aetrix verify that 1.5KE510-E3/73 is sourced from the original manufacturer or authorized distributors?
All 1.5KE510-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 1.5KE510-E3/73 meets industry standards.
7.What is the process for return or replacement of 1.5KE510-E3/73?
All 1.5KE510-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE510-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 1.5KE510-E3/73 part is unused and in its original packaging.
Return procedure for 1.5KE510-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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