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Vishay General Semiconductor - Diodes Division LCE8.0-E3/54
- Part No.:
- LCE8.0-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
LCE8.0-E3/54.pdf
- Description:
- TVS DIODE 8VWM 15VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:7,392
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Product details
Overview
LCE8.0-E3/54 from Vishay General Semiconductor is a unidirectional low-capacitance TRANSZORB® transient voltage suppressor (TVS) diode in the 1.5KE package, rated for 1500 W peak pulse power (10/1000 μs), 8.0 V stand-off voltage (VWM), and 13.6 V maximum clamping voltage (VC) at 100 A peak pulse current. It protects sensitive signal lines in consumer electronics, industrial sensors, and telecom interfaces against ESD and inductive switching transients.
For engineers reviewing the LCE8.0-E3/54 datasheet, LCE8.0-E3/54 pinout, LCE8.0-E3/54 application, or LCE8.0-E3/54 equivalent, key selection criteria include its 8.0 V VWM, 13.6 V VC at 100 A, 100 pF junction capacitance, unidirectional polarity, and UL 497B listing for telecom surge protection.
Technical Context
The LCE8.0-E3/54 employs a glass-passivated silicon junction optimized for fast response (<1 ps) and low incremental surge resistance. Its 1.5KE molded epoxy package meets UL 94 V-0 flammability rating and supports soldering per J-STD-002 with matte tin-plated leads.
Designed for single-pulse transient suppression, it operates across -65 °C to +175 °C junction temperature range and delivers stable clamping performance under repetitive 0.01% duty cycle conditions at 10/1000 μs waveform.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.0 V - Maximum continuous reverse operating voltage before breakdown; sets threshold for circuit-level overvoltage protection. |
| VBR (min/max) | 8.89 V / 9.83 V - Breakdown voltage range at 1 mA test current; defines precise conduction onset for transient clamping. |
| VC @ IPP | 13.6 V at 100 A - Clamping voltage during 10/1000 μs surge; determines maximum voltage seen by protected IC or MOSFET. |
| Junction Capacitance | 100 pF at 0 V - Low capacitance enables use on high-speed signal lines (e.g., USB, RS-485) without signal integrity degradation. |
| Peak Pulse Power | 1500 W - Sustains high-energy transients (e.g., lightning-induced surges per IEC 61000-4-5) without failure. |
| Polarity | Unidirectional - Protects only against positive transients relative to cathode; requires correct orientation in DC-biased circuits. |
| Package | 1.5KE - Industry-standard axial-leaded TO-201AA package with 0.375" lead length; compatible with through-hole PCB assembly and manual rework. |
Pinout & Package
Package: 1.5KE (TO-201AA), axial-leaded, molded epoxy body with color band indicating cathode terminal. Meets UL 94 V-0, RoHS-compliant (E3 suffix), JESD 201 Class 1A whisker-tested.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Positive reference terminal | Connected to lower-potential side of protected line; conducts during reverse-biased transient events. |
| Cathode (banded end) | Transient return path | Connected to ground or higher-potential rail; provides low-impedance path to shunt surge current away from load. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable, repeatable breakdown characteristics and long-term reliability under repeated surge stress. |
| 1500 W peak pulse power (10/1000 μs) | Supports robust protection against high-energy transients including IEC 61000-4-5 Level 4 surges (4 kV line-to-earth). |
| 100 pF junction capacitance | Minimizes signal distortion on data lines up to ~100 MHz; suitable for CAN, RS-232, and sensor analog outputs. |
| UL 497B listed | Validated for telecom interface protection per industry safety standard; reduces certification effort for end equipment. |
| Matte tin-plated leads | Ensures reliable solder wetting and intermetallic formation per J-STD-002; supports automated and hand-soldering processes. |
Applications
| Industrial Sensor Signal Protection | Consumer USB Port ESD Protection |
|---|---|
Use Scenario: Protecting 0–5 V analog output lines from inductive kickback and ESD in factory-floor pressure/temperature sensors. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between sensor output and microcontroller ADC input. Use Value: Limits transient voltage to ≤13.6 V, preventing ADC latch-up or op-amp damage while adding only 100 pF loading. | Use Scenario: Safeguarding USB 2.0 D+ and D− lines in portable speakers and docking stations against human-body-model (HBM) ESD. IC Role / Device Role / Timing Role: Discrete TVS pair (one per line) mounted near USB connector, cathode to VBUS or ground depending on bias scheme. Use Value: Clamps 8-kV HBM ESD pulses within nanoseconds, preserving signal integrity and meeting IEC 61000-4-2 Level 4 compliance. |
| Telecom Line Interface Protection | DC Power Rail Surge Suppression |
Use Scenario: Shielding RS-485 transceivers in building automation controllers connected to long outdoor cabling. IC Role / Device Role / Timing Role: Unidirectional TVS on each differential line (A/B), referenced to local ground. Use Value: Withstands 10/1000 μs surges up to 1500 W and maintains <100 pF loading to preserve common-mode rejection ratio (CMRR). | Use Scenario: Guarding 12 V DC input rails in industrial HMIs against load-dump transients from automotive-style power supplies. IC Role / Device Role / Timing Role: TVS placed between rail and chassis ground, sized for 8.0 V nominal system voltage. Use Value: Clamps 12 V rail spikes to ≤13.6 V, preventing regulator overvoltage shutdown and downstream logic corruption. |
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) and VC (13.6 V), but lower PPPM (600 W) and surface-mount SMB package. | Preferred for space-constrained PCBs; unsuitable for high-energy surges exceeding 600 W. | Select SMBJ8.0A when board area is limited and surge energy stays below IEC 61000-4-5 Level 2. |
| 1.5KE8.0A | Identical electrical specs and 1.5KE package; differs only in packaging suffix (no /54 tape-and-reel designation). | No functional difference; used interchangeably where reel delivery is not required. | Choose 1.5KE8.0A for prototype builds or small-batch orders without tape-and-reel logistics. |
Compared with SMBJ8.0A and 1.5KE8.0A, the LCE8.0-E3/54 offers full 1500 W surge handling in a RoHS-compliant, UL-listed axial package with verified 13" tape-and-reel delivery-making it optimal for high-reliability industrial production requiring traceable sourcing and telecom compliance.
Availability
LCE8.0-E3/54 is available at Aetrix Electronics and suitable for industrial sensor interfaces, telecom line protection, and DC power rail surge suppression requiring stable component supply, UL 497B validation, and 13" tape-and-reel logistics support.
Supply support for LCE8.0-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 industry certifications.
The LCE8.0-E3/54 belongs to Vishay's TRANSZORB® low-capacitance TVS family, engineered specifically for high-fidelity signal-line protection in telecom, industrial automation, and consumer electronics where low capacitance and high surge immunity are jointly critical.
FAQ
What is the maximum clamping voltage of the LCE8.0-E3/54 under a 100 A transient?
The LCE8.0-E3/54 has a maximum clamping voltage (VC) of 13.6 V when subjected to a 100 A peak pulse current with a 10/1000 μs waveform. This value is guaranteed per the Vishay datasheet and ensures protected circuitry remains below critical overvoltage thresholds during surge events. The LCE8.0-E3/54 achieves this clamping performance while maintaining low dynamic impedance and fast response time.
Is the LCE8.0-E3/54 RoHS-compliant and halogen-free?
Yes, the LCE8.0-E3/54 carries the E3 suffix, confirming RoHS compliance per Directive 2011/65/EU and passing JESD 201 Class 1A whisker testing. While the datasheet confirms RoHS status, it does not declare halogen-free compliance for the LCE8.0-E3/54; therefore, halogen-free qualification cannot be assumed without additional Vishay documentation. Always verify material declarations via official Vishay certificates for LCE8.0-E3/54.
Can the LCE8.0-E3/54 be used for bidirectional transient protection?
No, the LCE8.0-E3/54 is a unidirectional TVS diode and must be used with correct polarity-cathode connected toward the higher potential side of the protected line. For bidirectional AC signal protection (e.g., telephone lines), two LCE8.0-E3/54 units must be connected in series opposition, or a dedicated bidirectional part like the LCE8.0CA should be selected instead. Using LCE8.0-E3/54 alone on AC signals risks incomplete protection.
What is the junction capacitance of the LCE8.0-E3/54 and why does it matter?
The LCE8.0-E3/54 has a maximum junction capacitance of 100 pF measured at 0 V. This low value minimizes signal loading on high-speed or high-impedance nodes-such as sensor analog outputs or USB data lines-preventing bandwidth reduction or timing skew. Engineers rely on this spec to ensure the LCE8.0-E3/54 does not degrade signal integrity in frequency-sensitive applications.
Does the LCE8.0-E3/54 meet any safety agency certifications?
Yes, the LCE8.0-E3/54 is UL listed under file number E136766 for Telecom Application Protection per UL 497B. This certification validates its suitability for surge protection in telecom infrastructure equipment and reduces end-product safety certification burden. The LCE8.0-E3/54 also complies with JEDEC moisture sensitivity level (MSL) requirements and passes JESD 22-B106 solder dip testing at 275 °C for 10 seconds.
LCE8.0-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 8V
- Voltage - Breakdown (Min):
- 8.89V
- Voltage - Clamping (Max) @ Ipp:
- 15V
- 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
LCE8.0-E3/54 FAQ
1.How can I place an order for LCE8.0-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for LCE8.0-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 LCE8.0-E3/54 reliable?
The price and inventory of LCE8.0-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 LCE8.0-E3/54 is usually 5 days.
3.What payment methods are accepted for LCE8.0-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LCE8.0-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LCE8.0-E3/54?
LCE8.0-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LCE8.0-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 LCE8.0-E3/54?
For technical support, including LCE8.0-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LCE8.0-E3/54 requirements.
6.How does Aetrix verify that LCE8.0-E3/54 is sourced from the original manufacturer or authorized distributors?
All LCE8.0-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 LCE8.0-E3/54 meets industry standards.
7.What is the process for return or replacement of LCE8.0-E3/54?
All LCE8.0-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with LCE8.0-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 LCE8.0-E3/54 part is unused and in its original packaging.
Return procedure for LCE8.0-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LCE8.0-E3/54 Tags
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