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Vishay General Semiconductor - Diodes Division LCE10-E3/73
- Part No.:
- LCE10-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
LCE10-E3/73.pdf
- Description:
- TVS DIODE 10VWM 18.8VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:4,647
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Product details
Overview
LCE10-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 10 V standoff voltage (VWM), 11.1–12.3 V breakdown voltage (VBR), 1500 W peak pulse power (10/1000 µs), 17.0 V maximum clamping voltage at 88 A, and 100 pF junction capacitance - enabling fast, low-clamp protection on signal lines in industrial sensor interfaces.
For engineers reviewing the LCE10-E3/73 datasheet, LCE10-E3/73 pinout, LCE10-E3/73 application, or LCE10-E3/73 equivalent, key selection criteria include its unidirectional polarity, 1.5KE package compatibility, UL 497B listing for telecom surge protection, and suitability for inductive-switching transient suppression in 24 V control systems.
Technical Context
The LCE10-E3/73 operates as a silicon avalanche diode with glass-passivated chip junction, delivering sub-nanosecond response to ESD and lightning-induced transients. Its low incremental surge resistance ensures stable clamping under repetitive 10/1000 µs pulses at 0.01% duty cycle, while the 100 pF capacitance supports signal integrity on moderate-speed lines up to ~10 MHz.
Rated for -65 °C to +175 °C junction temperature, it uses matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and meets JESD 201 Class 1A whisker testing. The cathode is marked by a color band, and the molded epoxy case satisfies UL 94 V-0 flammability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10.0 V - Maximum continuous reverse operating voltage before conduction begins |
| VBR (min/max) | 11.1 V / 12.3 V - Breakdown occurs within this range at 1 mA test current, defining turn-on threshold |
| VC @ IPP | 17.0 V at 88 A - Clamped voltage during 10/1000 µs surge, limiting stress on downstream ICs |
| PPPM | 1500 W - Peak pulse power handling capability under standard surge waveform |
| Junction capacitance | 100 pF at 0 V - Low enough to avoid signal distortion on RS-485 or CAN FD lines |
| TJ max. | +175 °C - Enables use in high-temperature industrial enclosures without derating |
| Polarity | Unidirectional - Protects against positive transients only; requires external polarity management for AC lines |
Pinout & Package
Package: 1.5KE molded epoxy case (Case Style 1.5KE), DO-201AD outline, axial-leaded, RoHS-compliant (E3 suffix), UL 94 V-0 rated.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry during forward bias; grounded side in typical unidirectional clamp configuration | Connected to system ground or low-impedance return path to sink surge current |
| Cathode | Current exit during reverse breakdown; marked by color band | Connected to protected line (e.g., sensor output); conducts when line voltage exceeds VWM |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR and long-term reliability under thermal cycling and humidity stress |
| 1500 W peak pulse rating (10/1000 µs) | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth) without degradation |
| Low 100 pF junction capacitance | Minimizes signal rise-time degradation on 25 Mbps RS-485 or 1 Mbps CAN bus lines |
| UL 497B listed (E136766) | Validated for telecom interface protection including DSL, POTS, and T1/E1 lines |
| Matte tin plating, JESD 201 Class 1A | Prevents tin whisker growth in high-reliability industrial and automotive control modules |
Applications
| Industrial Sensor Interface Protection | PLC Digital Input Protection |
|---|---|
Use Scenario: Protecting 24 V analog sensor outputs (e.g., 4–20 mA transmitters) from inductive kickback caused by solenoid switching in factory automation cabinets. IC Role / Device Role / Timing Role: Unidirectional TVS clamps positive transients above 10 V, diverting surge current to ground before reaching ADC input or isolation amplifier. Use Value: Prevents latch-up or permanent damage to precision op-amps and SAR ADCs while maintaining <1% gain error due to 100 pF loading. | Use Scenario: Safeguarding 24 V DC digital inputs on programmable logic controllers exposed to relay contact bounce and field wiring faults. IC Role / Device Role / Timing Role: Acts as primary front-end surge limiter, absorbing >100 A transient spikes before internal Schmitt-trigger input stage. Use Value: Eliminates false triggering and extends mean time between failures (MTBF) in harsh electromagnetic environments per IEC 61000-4-4. |
| Telecom Line Interface (POTS/DSL) | Automotive Body Control Module (BCM) |
Use Scenario: Secondary protection on telephone line interface cards meeting UL 497B requirements for residential and business DSL modems. IC Role / Device Role / Timing Role: Paired with GDT or polymer PTC in hybrid protection network; handles fast-rising ESD and lightning surges after coarse filtering. Use Value: Achieves <500 V residual clamping level across full surge waveform, preserving line codec integrity and reducing bit error rate (BER). | Use Scenario: Protecting LIN bus transceiver inputs in body control units subjected to load dump and ISO 7637-2 Pulse 1/2a transients. IC Role / Device Role / Timing Role: Mounted directly at connector entry point to clamp negative-going transients (with complementary device) and limit voltage seen by LIN PHY. Use Value: Maintains LIN communication integrity during 12 V battery disconnection events without requiring additional series impedance or filtering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10A | Same VWM (10 V), lower PPPM (600 W), SMB package (surface-mount) | Designed for PCB space-constrained designs; lacks UL 497B listing | Select when board area is limited and telecom certification is not required |
| 1.5KE10A | Identical electrical specs and 1.5KE package; no E3 suffix (non-RoHS, non-whisker-tested) | Legacy version without JESD 201 Class 1A qualification or RoHS compliance | Choose only for legacy repair or non-automotive industrial use where whisker risk is acceptable |
Compared with SMBJ10A and 1.5KE10A, the LCE10-E3/73 uniquely combines UL 497B certification, JESD 201 Class 1A whisker resistance, and RoHS compliance in the 1.5KE through-hole format - making it optimal for new telecom and high-reliability industrial designs requiring audit-ready compliance documentation.
Availability
LCE10-E3/73 is available at Aetrix Electronics and suitable for industrial sensor interfaces, PLC digital inputs, and telecom line protection requiring stable component supply, long-lifecycle support, and certified surge performance.
Supply support for LCE10-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 efficiency, and application-specific validation.
The LCE10-E3/73 belongs to Vishay's TRANSZORB® low-capacitance TVS family, engineered specifically for high-energy transient suppression in telecom, industrial control, and automotive subsystems where clamping speed and consistency are critical.
FAQ
What is the maximum clamping voltage of the LCE10-E3/73 under surge conditions?
The LCE10-E3/73 has a maximum clamping voltage (VC) of 17.0 V at 88 A peak pulse current (IPP) using the 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 standardized surge events. Designers must ensure downstream components tolerate this clamped level under worst-case surge repetition.
Is the LCE10-E3/73 suitable for bidirectional signal line protection?
No - the LCE10-E3/73 is a unidirectional TVS diode, meaning it protects only against positive transients relative to ground. For AC or bidirectional signal lines (e.g., RS-485, USB D+/D−), two LCE10-E3/73 devices must be used in series opposition, or a dedicated bidirectional part like the LCE10CA should be selected instead.
Does the LCE10-E3/73 meet UL 497B requirements for telecom surge protection?
Yes - the LCE10-E3/73 is UL listed under file E136766 for Telecom Application Protection per UL 497B. This certification confirms its validated performance in protecting telephone line interfaces against lightning-induced surges and other telecom-specific transients, as verified by independent third-party testing.
What is the junction capacitance of the LCE10-E3/73 and how does it affect signal integrity?
The LCE10-E3/73 exhibits 100 pF junction capacitance at 0 V, measured per Vishay specification. This low value minimizes high-frequency attenuation and timing skew on signal lines up to ~10 MHz, supporting reliable operation in RS-485, CAN, and analog sensor interfaces without requiring additional impedance matching or bandwidth compensation.
Can the LCE10-E3/73 be soldered using standard wave or reflow processes?
The LCE10-E3/73 is qualified for solder dip at 275 °C for up to 10 seconds per JESD 22-B106, and its matte tin-plated leads comply with J-STD-002 and JESD 22-B102. While optimized for through-hole wave soldering, it is not rated for standard SMD reflow profiles; use only wave, selective, or hand-soldering methods to avoid thermal damage to the epoxy body and junction.
LCE10-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):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 18.8V
- Current - Peak Pulse (10/1000µs):
- 80A
- 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
LCE10-E3/73 FAQ
1.How can I place an order for LCE10-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for LCE10-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 LCE10-E3/73 reliable?
The price and inventory of LCE10-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 LCE10-E3/73 is usually 5 days.
3.What payment methods are accepted for LCE10-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LCE10-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LCE10-E3/73?
LCE10-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LCE10-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 LCE10-E3/73?
For technical support, including LCE10-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LCE10-E3/73 requirements.
6.How does Aetrix verify that LCE10-E3/73 is sourced from the original manufacturer or authorized distributors?
All LCE10-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 LCE10-E3/73 meets industry standards.
7.What is the process for return or replacement of LCE10-E3/73?
All LCE10-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with LCE10-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 LCE10-E3/73 part is unused and in its original packaging.
Return procedure for LCE10-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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