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Vishay General Semiconductor - Diodes Division LCE6.5A-E3/73
- Part No.:
- LCE6.5A-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
LCE6.5A-E3/73.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:3,760
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Product details
Overview
LCE6.5A-E3/73 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode designed for robust overvoltage protection of sensitive electronics. It features a 6.5 V stand-off voltage (VWM), 7.22–7.98 V breakdown voltage (VBR), 1500 W peak pulse power (10/1000 µs), 11.2 V clamping voltage at 100 A, and operates across –65 °C to +175 °C junction temperature.
For engineers reviewing the LCE6.5A-E3/73 datasheet, LCE6.5A-E3/73 pinout, LCE6.5A-E3/73 application, or LCE6.5A-E3/73 equivalent, key selection criteria include clamping performance under 100 A surge, low leakage (<100 µA at 6.5 V), RoHS-compliant matte tin leads, and UL 497B listing for telecom surge protection.
Technical Context
The LCE6.5A-E3/73 uses a glass-passivated silicon junction for stable, repeatable clamping with fast response time (<1 ns) and low incremental surge resistance. Its unidirectional polarity-marked by a cathode band-enables DC line protection without reverse conduction during normal operation.
Designed for 10/1000 µs waveform compliance, it delivers 100 A peak pulse current (IPPM) with 11.2 V clamping, enabling effective protection of MOSFET gates, IC inputs, and sensor signal lines against inductive switching transients and lightning-induced surges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - Maximum continuous reverse working voltage before clamping begins; ensures no conduction during normal 5 V or 6 V rail operation. |
| VBR (min/max) | 7.22 V / 7.98 V at 10 mA - Confirmed breakdown threshold range; guarantees reliable turn-on within spec under production test conditions. |
| VC @ IPPM | 11.2 V at 100 A - Clamping voltage limits downstream device stress during worst-case 1500 W surge events. |
| IPPM | 100 A - Peak surge current handling capacity per 10/1000 µs waveform; supports IEC 61000-4-5 Level 4 immunity designs. |
| PPPM | 1500 W - Peak pulse power rating defines transient energy absorption capability without failure. |
| Junction Temp Range | –65 °C to +175 °C - Enables deployment in under-hood automotive, industrial motor drives, and telecom base station environments. |
Pinout & Package
Package: Case Style 1.5KE - molded epoxy body with UL 94 V-0 flammability rating, 0.375" (9.5 mm) lead length, matte tin-plated leads compliant with J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to protected circuit ground or lower-potential node; conducts during reverse-transient clamping. |
| Cathode | Transient clamping terminal | Marked by color band; connected to line being protected (e.g., VIN, signal trace); sinks surge current into ground path. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure. |
| 1500 W peak pulse power (10/1000 µs) | Supports high-energy surge suppression in AC/DC power supplies and industrial control I/O without derating. |
| UL 497B listed (E136766) | Validates suitability for telecom interface protection including POTS, DSL, and Ethernet PHY front-ends. |
| RoHS-compliant E3 suffix | Meets JESD 201 Class 1A whisker resistance; qualified for lead-free reflow and wave soldering up to 275 °C for 10 s. |
Applications
| Industrial Motor Drives | Telecom Line Interface |
|---|---|
Use Scenario: Protection of gate drivers and feedback sensors against inductive kickback from relay coils and solenoid loads. IC Role / Device Role: Unidirectional TVS placed between MOSFET gate and source to clamp voltage spikes before they exceed gate oxide rating. Use Value: Limits transient overshoot to ≤11.2 V, preventing gate oxide rupture and ensuring >100,000-cycle reliability in PLC output modules. | Use Scenario: Surge protection on telephone line interface circuits per ITU-T K.20/K.21 requirements. IC Role / Device Role: Primary protection element on tip/ring lines upstream of SLIC and codec ICs. Use Value: UL 497B listing and 1500 W rating meet telecom-grade surge immunity for central office and CPE equipment. |
| Consumer Power Adapters | Automotive Body Control Modules |
Use Scenario: Input-stage protection in 5 V/12 V wall adapters against EFT and lightning-induced surges on AC input rectifier outputs. IC Role / Device Role: Secondary-side TVS across DC bus to absorb reflected transients from primary-side switching noise. Use Value: 6.5 V VWM allows safe operation with 5 V logic rails; 100 µA max leakage avoids standby current penalty. | Use Scenario: CAN/LIN bus line protection in door module ECUs exposed to load dump and jump-start transients. IC Role / Device Role: Unidirectional clamp on supply rail (VBAT) to limit voltage excursions during ISO 7637-2 Pulse 1/2a events. Use Value: 175 °C max junction temperature enables placement near hot microcontrollers without thermal derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.5A | Same VWM (6.5 V), lower PPPM (600 W), smaller SMB package (3.5 × 4.6 mm vs. 1.5KE axial 5.6 × 9.5 mm). | Lower surge margin; suited for space-constrained consumer PCBs where 600 W suffices. | Select SMBJ6.5A only if layout area is critical and surge threat level is ≤IEC 61000-4-5 Level 2. |
| 1.5KE6.8A | Higher VWM (6.8 V), identical 1.5KE package, same 1500 W rating, but VBR starts at 7.56 V (vs. 7.22 V for LCE6.5A-E3/73). | Marginally higher clamping onset; may allow slightly higher system operating voltage tolerance. | Choose 1.5KE6.8A when design requires tighter VWM/VBR ratio or legacy 1.5KE footprint compatibility without VWM reduction. |
Compared with SMBJ6.5A and 1.5KE6.8A, the LCE6.5A-E3/73 offers the lowest VWM in the 1.5KE family (6.5 V), earliest clamping onset (7.22 V min VBR), and UL 497B certification-making it optimal for telecom and low-voltage industrial interfaces requiring strict overvoltage thresholds.
Availability
LCE6.5A-E3/73 is available at Aetrix Electronics and suitable for industrial motor drives, telecom line interfaces, and automotive body control modules requiring stable component supply and certified surge protection performance.
Supply support for LCE6.5A-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, TVS devices, and optoelectronics with emphasis on reliability and application-specific performance.
The LCE6.5A-E3/73 belongs to Vishay's Low Capacitance TRANSZORB® family, engineered for high-energy transient suppression in telecom, industrial, and automotive systems where fast clamping and UL-certified robustness are mandatory.
FAQ
What is the maximum clamping voltage of the LCE6.5A-E3/73 at its rated peak pulse current?
The LCE6.5A-E3/73 has a maximum clamping voltage (VC) of 11.2 V at 100 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured per Figure 3 in Vishay document 88357 and defines the upper voltage limit imposed on protected circuitry during worst-case surge events. The LCE6.5A-E3/73 maintains this clamping performance across its full operating temperature range.
Is the LCE6.5A-E3/73 RoHS-compliant and qualified for lead-free soldering?
Yes, the LCE6.5A-E3/73 carries the E3 suffix, indicating RoHS compliance per Directive 2011/65/EU and qualification for lead-free soldering. It meets JESD 201 Class 1A whisker resistance and withstands solder dip at 275 °C for up to 10 seconds per JESD 22-B106. The matte tin-plated leads are solderable per J-STD-002 and JESD 22-B102. The LCE6.5A-E3/73 is fully compatible with standard reflow and wave soldering profiles.
Does the LCE6.5A-E3/73 have UL certification for telecom applications?
Yes, the LCE6.5A-E3/73 is UL listed under file E136766 for Telecom Application Protection per UL 497B. This certification validates its use in primary and secondary telecom surge protection circuits, including POTS, DSL, and Ethernet physical layer interfaces. The LCE6.5A-E3/73 meets required dielectric strength, flammability (UL 94 V-0), and surge endurance criteria defined in UL 497B. No additional external components are needed to achieve compliance.
What is the reverse leakage current specification for the LCE6.5A-E3/73 at its stand-off voltage?
The LCE6.5A-E3/73 specifies a maximum reverse leakage current (ID) of 1000 µA at its 6.5 V stand-off voltage (VWM) and 25 °C ambient temperature. This value is confirmed in the Electrical Characteristics table of Vishay document 88357. At elevated temperatures, leakage increases predictably per derating curves; however, the LCE6.5A-E3/73 remains well below 10 µA at typical 5 V system rails, minimizing standby power impact.
How does the LCE6.5A-E3/73 differ from standard 1.5KE series TVS diodes?
The LCE6.5A-E3/73 is part of Vishay's Low Capacitance TRANSZORB® series, distinguished by tighter VBR tolerance (±5 % vs. ±10 % in generic 1.5KE), enhanced surge life cycle endurance, and UL 497B listing. Unlike baseline 1.5KE parts, the LCE6.5A-E3/73 undergoes additional screening for low capacitance and consistent clamping behavior. The LCE6.5A-E3/73 also features E3-compliant matte tin leads and JESD 201 Class 1A whisker resistance-features not guaranteed across all 1.5KE-marked devices.
LCE6.5A-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):
- 6.5V
- Voltage - Breakdown (Min):
- 7.22V
- Voltage - Clamping (Max) @ Ipp:
- 11.2V
- Current - Peak Pulse (10/1000µs):
- 100A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
LCE6.5A-E3/73 FAQ
1.How can I place an order for LCE6.5A-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for LCE6.5A-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 LCE6.5A-E3/73 reliable?
The price and inventory of LCE6.5A-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 LCE6.5A-E3/73 is usually 5 days.
3.What payment methods are accepted for LCE6.5A-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LCE6.5A-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LCE6.5A-E3/73?
LCE6.5A-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LCE6.5A-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 LCE6.5A-E3/73?
For technical support, including LCE6.5A-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LCE6.5A-E3/73 requirements.
6.How does Aetrix verify that LCE6.5A-E3/73 is sourced from the original manufacturer or authorized distributors?
All LCE6.5A-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 LCE6.5A-E3/73 meets industry standards.
7.What is the process for return or replacement of LCE6.5A-E3/73?
All LCE6.5A-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with LCE6.5A-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 LCE6.5A-E3/73 part is unused and in its original packaging.
Return procedure for LCE6.5A-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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