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Vishay General Semiconductor - Diodes Division LCE7.0-E3/54
- Part No.:
- LCE7.0-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
LCE7.0-E3/54.pdf
- Description:
- TVS DIODE 7VWM 13.3VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:5,558
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Product details
Overview
LCE7.0-E3/54 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode designed for robust overvoltage protection in signal and power lines. It features a 7.0 V stand-off voltage (VWM), 7.78–8.6 V breakdown voltage (VBR), 1500 W peak pulse power (10/1000 µs), 12.0 V maximum clamping voltage at 100 A, and operates across –65 °C to +175 °C junction temperature.
For engineers reviewing the LCE7.0-E3/54 datasheet, LCE7.0-E3/54 pinout, LCE7.0-E3/54 application, or LCE7.0-E3/54 equivalent, key selection criteria include clamping performance under 100 A surge, low incremental surge resistance, UL 497B listing for telecom protection, and compatibility with 1.5KE package reflow and hand-soldering processes per J-STD-002.
Technical Context
The LCE7.0-E3/54 employs a glass-passivated silicon junction optimized for fast response (<1 ps) to ESD and lightning-induced transients. Its unidirectional polarity-marked by a cathode band-enables integration into DC-biased lines without reverse conduction during normal operation.
It delivers stable clamping at 12.0 V under 100 A (10/1000 µs), with only 1.0 µA max reverse leakage at 7.0 V and 100 pF junction capacitance at 0 V, making it suitable for high-speed data line protection where capacitive loading must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.0 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 7.78 V / 8.6 V at 10 mA - Ensures reliable turn-on within defined tolerance band |
| VC @ IPP | 12.0 V at 100 A - Limits downstream voltage stress during worst-case surge |
| PPPM | 1500 W (10/1000 µs) - Supports high-energy transient suppression without failure |
| Junction Capacitance | 100 pF at 0 V - Low enough for USB 2.0, RS-485, and sensor interface protection |
| TJ Range | –65 °C to +175 °C - Enables deployment in automotive engine compartments and industrial controls |
Pinout & Package
Package: 1.5KE molded epoxy case (JEDEC DO-201AD), RoHS-compliant matte tin-plated leads, UL 94 V-0 rated, 0.968 g unit weight, supplied in 13" paper tape and reel (E3/54 = 1400 pcs/reel).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Surge return path | Connected to protected line's low-side reference (e.g., ground or negative rail) |
| Cathode | Clamping node / Surge sink | Marked by color band; connects to line under protection (e.g., VCC, signal, or positive rail) |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable, repeatable breakdown behavior and long-term reliability under repetitive surges |
| 1500 W peak pulse power | Withstands multiple 10/1000 µs transients up to 100 A without degradation |
| UL 497B listed | Qualified for telecom primary and secondary circuit protection per industry safety standard |
| Low 100 pF capacitance | Minimizes signal distortion on lines up to ~50 MHz (e.g., CAN, RS-232, analog sensors) |
Applications
| Industrial Sensor Interface Protection | Telecom Line Card Surge Suppression |
|---|---|
Use Scenario: Protecting 4–20 mA current loop transmitters and analog voltage outputs from inductive switching spikes and EFT bursts. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and system ground to clamp transients before they reach ADC input or op-amp buffer. Use Value: Prevents latch-up or damage to precision analog front-ends while maintaining <1 µA leakage at 7.0 V operating bias. | Use Scenario: Safeguarding DSL/ISDN line interface ICs (e.g., SLICs) against lightning-induced surges on tip/ring pairs. IC Role / Device Role / Timing Role: Primary-level protection device mounted at connector entry point, upstream of isolation transformers and line drivers. Use Value: UL 497B certification ensures compliance with telecom infrastructure safety requirements; 12.0 V clamping limits stress on downstream 12 V-rated components. |
| Automotive Body Control Module Inputs | Consumer USB Port ESD Protection |
Use Scenario: Shielding LIN bus inputs and switch sense lines in BCMs exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Standoff-rated TVS connected between input pin and chassis ground, absorbing energy before reaching microcontroller GPIO. Use Value: 175 °C max junction temperature supports under-hood placement; 1500 W rating exceeds ISO 7637-2 Pulse 5a requirements. | Use Scenario: Adding secondary-level ESD immunity to USB 2.0 D+/D– lines in portable audio devices and smart home hubs. IC Role / Device Role / Timing Role: Low-capacitance TVS placed adjacent to USB connector to shunt ±8 kV HBM ESD events before reaching PHY IC. Use Value: 100 pF capacitance avoids signal integrity loss at 480 Mbps; 12.0 V clamping protects 3.3 V tolerant PHYs without overstressing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.0A | Same VWM (7.0 V), lower PPPM (600 W), SMB package (smaller footprint, lower thermal mass) | Better suited for space-constrained PCBs with moderate surge exposure (e.g., consumer USB ports) | Select SMBJ7.0A when board area is limited and peak surge energy is ≤600 W |
| 1.5KE7.0A | Identical electrical specs and 1.5KE package; differs only in packaging suffix (no /54 tape-and-reel indicator) | No functional difference; identical use cases and mounting | Choose 1.5KE7.0A if standard bulk packaging or alternate reel configuration is preferred |
Compared with SMBJ7.0A and 1.5KE7.0A, the LCE7.0-E3/54 offers identical clamping and standoff performance but guarantees RoHS-compliant E3 plating and JESD 201 Class 1A whisker resistance-critical for long-life industrial deployments-and ships in verified 1400-piece 13" reels for automated SMT placement.
Availability
LCE7.0-E3/54 is available at Aetrix Electronics and suitable for industrial sensor interfaces, telecom line cards, automotive body control modules, and consumer USB port protection requiring stable component supply and full traceability.
Supply support for LCE7.0-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, MOSFETs, and protection devices with emphasis on reliability, power handling, and AEC-Q200 qualification.
The LCE7.0-E3/54 belongs to Vishay's Low Capacitance TRANSZORB® family, engineered specifically for high-speed signal line protection where low clamping voltage, fast response, and minimal parasitic capacitance are essential.
FAQ
What is the maximum clamping voltage of the LCE7.0-E3/54 under a 100 A surge?
The LCE7.0-E3/54 has a maximum clamping voltage (VC) of 12.0 V when subjected to a 100 A peak pulse current with a 10/1000 µs waveform. This value is guaranteed per the Vishay datasheet (Document Number 88357) and defines the upper voltage limit imposed on protected circuitry during worst-case transient events. The LCE7.0-E3/54 maintains this clamping performance across its full operating temperature range.
Is the LCE7.0-E3/54 RoHS compliant and qualified for lead-free soldering?
Yes, the LCE7.0-E3/54 carries the E3 suffix, indicating full RoHS compliance per Directive 2011/65/EU and qualification for lead-free reflow soldering. Its matte tin-plated leads meet J-STD-002 and JESD 22-B102 solderability standards, and it passes JESD 201 Class 1A whisker testing. The LCE7.0-E3/54 is rated for solder dip at 275 °C for up to 10 seconds.
Does the LCE7.0-E3/54 have UL recognition for telecom applications?
Yes, the LCE7.0-E3/54 is UL listed under file number E136766 for Telecom Application Protection per UL 497B. This certification confirms its suitability for primary and secondary circuit protection in telecom infrastructure equipment such as DSLAMs, line cards, and base station interfaces. The LCE7.0-E3/54 meets the required surge withstand and insulation requirements specified in that standard.
What is the junction capacitance of the LCE7.0-E3/54 and how does it affect high-speed signal lines?
The LCE7.0-E3/54 exhibits a maximum junction capacitance of 100 pF at 0 V, measured per standard test conditions. This low capacitance minimizes signal distortion and timing skew on lines operating up to ~50 MHz, including RS-485, CAN, and analog sensor outputs. For USB 2.0 applications, the LCE7.0-E3/54 preserves signal integrity without violating eye diagram masks, unlike higher-capacitance TVS devices.
How does the LCE7.0-E3/54 differ from the standard 1.5KE7.0A in terms of construction and reliability?
The LCE7.0-E3/54 shares identical electrical specifications and 1.5KE package dimensions with 1.5KE7.0A but adds E3-grade matte tin plating, JESD 201 Class 1A whisker resistance, and guaranteed RoHS compliance. These enhancements improve long-term interconnect reliability in high-vibration or high-temperature environments. The LCE7.0-E3/54 is also supplied in standardized 1400-piece 13" paper tape reels (suffix /54), ensuring consistent SMT placement yield.
LCE7.0-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):
- 7V
- Voltage - Breakdown (Min):
- 7.78V
- Voltage - Clamping (Max) @ Ipp:
- 13.3V
- 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
LCE7.0-E3/54 FAQ
1.How can I place an order for LCE7.0-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for LCE7.0-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 LCE7.0-E3/54 reliable?
The price and inventory of LCE7.0-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 LCE7.0-E3/54 is usually 5 days.
3.What payment methods are accepted for LCE7.0-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LCE7.0-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LCE7.0-E3/54?
LCE7.0-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LCE7.0-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 LCE7.0-E3/54?
For technical support, including LCE7.0-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LCE7.0-E3/54 requirements.
6.How does Aetrix verify that LCE7.0-E3/54 is sourced from the original manufacturer or authorized distributors?
All LCE7.0-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 LCE7.0-E3/54 meets industry standards.
7.What is the process for return or replacement of LCE7.0-E3/54?
All LCE7.0-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with LCE7.0-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 LCE7.0-E3/54 part is unused and in its original packaging.
Return procedure for LCE7.0-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LCE7.0-E3/54 Tags
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