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Vishay General Semiconductor - Diodes Division LCE8.0A-E3/73
- Part No.:
- LCE8.0A-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
LCE8.0A-E3/73.pdf
- Description:
- TVS DIODE 8VWM 13.6VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:2,390
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Product details
Overview
LCE8.0A-E3/73 from Vishay General Semiconductor is a unidirectional low-capacitance TRANSZORB® transient voltage suppressor (TVS) diode designed for robust overvoltage protection of sensitive signal lines. It features a 8.0 V stand-off voltage (VWM), 8.89–9.83 V breakdown voltage (VBR) at 1 mA, 1500 W peak pulse power (10/1000 µs), 13.6 V maximum clamping voltage at 100 A IPP, and operates across –65 °C to +175 °C junction temperature.
For engineers reviewing the LCE8.0A-E3/73 datasheet, LCE8.0A-E3/73 pinout, LCE8.0A-E3/73 application, or LCE8.0A-E3/73 equivalent, this device is selected for fast-response, high-energy surge suppression in low-capacitance signal paths-especially where ESD, lightning-induced transients, or inductive switching events threaten ICs, MOSFET gates, or sensor interfaces.
Technical Context
The LCE8.0A-E3/73 employs a glass-passivated silicon junction for stable, repeatable clamping behavior under repetitive surge conditions. Its 10/1000 µs waveform rating supports telecom-grade surge immunity per UL 497B (E136766), with 0.01% duty cycle capability and low incremental surge resistance ensuring minimal voltage overshoot during transient events.
Designed for unidirectional operation, it integrates polarity marking via cathode band and uses matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. The device is RoHS-compliant (E3 suffix), passes JESD 201 Class 1A whisker testing, and is housed in a UL 94 V-0 rated epoxy package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.0 V - Maximum continuous reverse operating voltage before clamping begins; defines safe signal swing margin for protected line. |
| VBR (min/max) | 8.89 V / 9.83 V at 1 mA - Confirmed breakdown threshold range ensures reliable turn-on without premature conduction. |
| VC @ IPP | 13.6 V at 100 A - Clamping voltage under full-rated surge; determines maximum stress imposed on downstream circuitry. |
| PPPM | 1500 W (10/1000 µs) - Peak transient energy handling capacity; qualifies for IEC 61000-4-5 Level 4 surge immunity. |
| Junction Capacitance | 100 pF at 0 V - Low capacitance preserves signal integrity on high-speed lines (e.g., USB, RS-485, sensor outputs). |
| TJ max | +175 °C - Enables use in high-temperature industrial and automotive under-hood environments without derating. |
Pinout & Package
Package: Case Style 1.5KE - molded epoxy body with glass-passivated junction, UL 94 V-0 flammability rating, 0.375" (9.5 mm) lead length, matte tin-plated leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward bias; connected to protected line side in unidirectional configuration. | Not used for clamping; must be tied to lower-potential node (e.g., ground or signal return) when protecting positive transients. |
| Cathode | Clamping terminal; marked by color band on package body. | Connected to protected line; conducts surge current to ground path when reverse voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated chip junction | Ensures long-term stability and low leakage (<100 µA at VWM) across temperature and lifetime. |
| 1500 W peak pulse power (10/1000 µs) | Supports high-energy surge events common in industrial control and telecom line interfaces without degradation. |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients, improving protection margin for downstream ICs. |
| UL 497B listed (E136766) | Validates suitability for telecom primary/secondary circuit protection without additional system-level certification effort. |
Applications
| Industrial Sensor Interface Protection | Telecom Line Interface |
|---|---|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in PLC modules exposed to relay coil flyback and motor drive noise. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between sensor output and ground, clamping positive transients before they reach ADC input or op-amp buffer. Use Value: 13.6 V clamping voltage limits stress on 12 V-tolerant analog front-end components; 100 pF capacitance avoids signal distortion at ≤1 MHz bandwidth. | Use Scenario: Secondary-side surge protection on POTS or DSL line interface circuits in residential gateways and VoIP adapters. IC Role / Device Role / Timing Role: Standoff-rated TVS on tip/ring lines referenced to system ground, suppressing induced surges from nearby AC wiring or lightning coupling. Use Value: UL 497B listing confirms compliance for telecom safety standards; 1500 W rating meets GR-1089-CORE Level 3 requirements. |
| Automotive Body Control Module | USB 2.0 Data Line Protection |
Use Scenario: Safeguarding LIN bus or switched 12 V inputs in BCMs against load dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS mounted directly at connector entry point, shunting surge energy to chassis ground. Use Value: +175 °C max junction temperature supports under-dash mounting; 8.0 V VWM allows compatibility with 12 V nominal systems while avoiding false triggering. | Use Scenario: ESD and cable discharge protection on D+ and D– lines of embedded USB host ports in medical or industrial devices. IC Role / Device Role / Timing Role: Low-capacitance TVS placed inline with data lines, grounded via shortest possible trace to minimize stub inductance. Use Value: 100 pF capacitance prevents signal rise-time degradation; 13.6 V VC ensures USB PHY receivers (typically 3.3 V tolerant) remain within safe operating limits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0A | Same VWM (8.0 V), but lower PPPM (600 W); SMB package (smaller footprint, lower thermal mass). | Less suitable for high-energy telecom or industrial surges; better for space-constrained consumer electronics with lower threat levels. | Select SMBJ8.0A only if system-level surge testing validates <600 W requirement and PCB layout cannot accommodate 1.5KE outline. |
| 1.5KE8.0A | Identical electrical specs and 1.5KE package; differs only in branding and minor process revision-no functional distinction from LCE8.0A-E3/73. | No application difference; fully interchangeable in design, sourcing, and qualification. | 1.5KE8.0A is a legacy part number variant; LCE8.0A-E3/73 offers same performance with updated RoHS/E3 compliance and whisker-tested leads. |
Compared with SMBJ8.0A, LCE8.0A-E3/73 delivers 2.5× higher surge energy handling in the same 1.5KE form factor; versus 1.5KE8.0A, it provides identical protection performance with enhanced reliability assurance via JESD 201 Class 1A whisker testing and explicit UL 497B listing.
Availability
LCE8.0A-E3/73 is available at Aetrix Electronics and suitable for industrial sensor interfaces, telecom line protection, automotive body control modules, and USB 2.0 data line protection requiring stable component supply and long-term manufacturing continuity.
Supply support for LCE8.0A-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 performance.
The LCE series belongs to Vishay's TRANSZORB® low-capacitance TVS family, engineered specifically for high-fidelity signal line protection where fast response, precise clamping, and minimal parasitic capacitance are critical-targeting telecom, industrial automation, and automotive subsystems.
FAQ
What is the maximum clamping voltage of the LCE8.0A-E3/73 under rated surge conditions?
The LCE8.0A-E3/73 has a maximum clamping voltage (VC) of 13.6 V when subjected to its rated peak pulse current of 100 A using a 10/1000 µs waveform. This value is measured at the device terminals and represents the upper voltage limit imposed on the protected circuit during worst-case transient events, ensuring downstream components like microcontrollers or transceivers remain within safe operating margins.
Is the LCE8.0A-E3/73 suitable for bidirectional signal line protection?
No, the LCE8.0A-E3/73 is a unidirectional TVS diode and must be used with polarity aligned to protect against positive-going transients only. For AC or bidirectional signal lines (e.g., RS-485, Ethernet), two LCE8.0A-E3/73 units must be connected in series opposition-one anode-to-cathode-to provide symmetrical clamping. The datasheet explicitly states this configuration in Figure 4 for AC line protection.
Does the LCE8.0A-E3/73 meet UL 497B requirements for telecom surge protection?
Yes, the LCE8.0A-E3/73 is UL listed under file E136766 for Telecom application protection per UL 497B. This certification covers both primary and secondary circuit protection in telecom equipment and confirms compliance with surge withstand, flammability (UL 94 V-0), and long-term reliability requirements defined in that standard.
What is the junction temperature range specification for the LCE8.0A-E3/73?
The LCE8.0A-E3/73 is rated for an operating and storage junction temperature range of –65 °C to +175 °C. This wide range enables deployment in harsh environments such as under-hood automotive systems, industrial motor drives, and outdoor telecom cabinets where ambient temperatures exceed 100 °C and thermal cycling is severe.
How does the E3 suffix affect the LCE8.0A-E3/73 compared to non-E3 variants?
The E3 suffix indicates RoHS-compliant construction with matte tin-plated leads that pass JESD 201 Class 1A whisker testing, ensuring long-term solder joint reliability under thermal cycling. It also confirms compliance with Directive 2011/65/EU and JEDEC JS709A halogen-free requirements-making LCE8.0A-E3/73 suitable for modern high-reliability and environmentally regulated designs where lead-free assembly and whisker mitigation are mandatory.
LCE8.0A-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):
- 8V
- Voltage - Breakdown (Min):
- 8.89V
- Voltage - Clamping (Max) @ Ipp:
- 13.6V
- 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
LCE8.0A-E3/73 FAQ
1.How can I place an order for LCE8.0A-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for LCE8.0A-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 LCE8.0A-E3/73 reliable?
The price and inventory of LCE8.0A-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 LCE8.0A-E3/73 is usually 5 days.
3.What payment methods are accepted for LCE8.0A-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LCE8.0A-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LCE8.0A-E3/73?
LCE8.0A-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LCE8.0A-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 LCE8.0A-E3/73?
For technical support, including LCE8.0A-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LCE8.0A-E3/73 requirements.
6.How does Aetrix verify that LCE8.0A-E3/73 is sourced from the original manufacturer or authorized distributors?
All LCE8.0A-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 LCE8.0A-E3/73 meets industry standards.
7.What is the process for return or replacement of LCE8.0A-E3/73?
All LCE8.0A-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with LCE8.0A-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 LCE8.0A-E3/73 part is unused and in its original packaging.
Return procedure for LCE8.0A-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LCE8.0A-E3/73 Tags
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