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Vishay General Semiconductor - Diodes Division LCE9.0-E3/54
- Part No.:
- LCE9.0-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
LCE9.0-E3/54.pdf
- Description:
- TVS DIODE 9VWM 16.9VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:3,389
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Product details
Overview
LCE9.0-E3/54 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode designed for robust overvoltage protection of sensitive electronics. It features a 9.0 V stand-off voltage (VWM), 10.0–11.1 V breakdown voltage (VBR), 15.4 V maximum clamping voltage at 97 A peak pulse current, 1500 W peak pulse power (10/1000 µs), and 100 pF junction capacitance - enabling reliable surge suppression on low-voltage signal lines in industrial sensor interfaces.
For engineers reviewing the LCE9.0-E3/54 datasheet, LCE9.0-E3/54 pinout, LCE9.0-E3/54 application, or LCE9.0-E3/54 equivalent, key selection criteria include its unidirectional polarity, 1.5KE package compatibility, UL 497B listing for telecom protection, RoHS-compliant matte tin plating, and verified 175 °C max junction temperature rating.
Technical Context
The LCE9.0-E3/54 operates as a silicon avalanche diode with glass-passivated chip junction, delivering fast response time (<1 ns) and low incremental surge resistance to clamp transients induced by inductive load switching or ESD events. Its 10/1000 µs waveform capability supports repetitive surge duty cycles up to 0.01 %.
Designed for use in series with protected circuits, it exhibits 1.0 µA max reverse leakage at VWM, 100 pF junction capacitance at 0 V, and meets JESD 22-B106 solderability requirements (275 °C, 10 s). Polarity is marked by a cathode band on the molded epoxy body.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - Maximum continuous reverse operating voltage before conduction begins; sets threshold for normal circuit operation. |
| VBR (min/max) | 10.0 V / 11.1 V at 1.0 mA test current - Confirmed avalanche breakdown range ensures predictable turn-on under surge conditions. |
| VC @ IPP | 15.4 V at 97 A - Clamping voltage limits downstream component stress during 10/1000 µs transients. |
| PPPM | 1500 W - Peak pulse power handling capacity defines survivability against high-energy surges per IEC 61000-4-5. |
| Junction Capacitance | 100 pF at 0 V - Low capacitance preserves signal integrity on data lines up to ~10 MHz without excessive attenuation. |
| TJ max | 175 °C - Enables reliable operation in high-ambient environments such as industrial motor drives or outdoor telecom enclosures. |
Pinout & Package
Package: 1.5KE molded epoxy case (Case Style 1.5KE), DO-201AD outline, RoHS-compliant matte tin-plated leads, cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction; connected to protected line side in unidirectional configuration. | Not used for clamping in standard TVS operation; remains reverse-biased during normal operation. |
| Cathode | Current exit terminal during reverse avalanche clamping; connected to ground or common reference. | Marked by color band; must be tied to lowest impedance return path to ensure effective transient shunting. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure. |
| UL 497B listed (E136766) | Validates suitability for telecom interface protection including POTS, DSL, and T1/E1 line cards without additional certification effort. |
| 100 pF junction capacitance | Minimizes signal distortion on RS-485, CAN, or USB 2.0 data lines while maintaining effective clamping performance. |
| 175 °C max junction temperature | Supports deployment in high-temperature industrial control cabinets or automotive under-hood auxiliary modules. |
| E3 suffix compliance | Meets JESD 201 Class 1A whisker test, ensuring lead finish stability during reflow and long-term storage. |
Applications
| Industrial Sensor Interface Protection | Telecom Line Card Surge Suppression |
|---|---|
Use Scenario: Protecting 4–20 mA analog sensor outputs from inductive kickback and lightning-induced surges in factory automation systems. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between signal line and ground, clamping transients above 9.0 V. Use Value: Prevents damage to precision ADC inputs and op-amps while maintaining <100 pF loading for sub-100 kHz bandwidth signals. |
Use Scenario: Safeguarding T1/E1 line drivers and receivers in central office equipment exposed to AC power cross-talk and lightning surges. IC Role / Device Role / Timing Role: Primary unidirectional surge suppressor on tip/ring pairs, compliant with UL 497B requirements. Use Value: Delivers 1500 W pulse handling and 15.4 V clamping to keep receiver ICs within safe operating area during 10/1000 µs threats. |
| Consumer Power Adapter Input Stage | Automotive Body Control Module I/O Protection |
Use Scenario: Secondary-side transient suppression on 5 V/9 V DC output rails of wall adapters subject to load dump and hot-swap events. IC Role / Device Role / Timing Role: Standoff-rated TVS across output-to-ground, activated only during overvoltage excursions. Use Value: Maintains 9.0 V regulation margin while clamping spikes to ≤15.4 V, protecting downstream LDOs and microcontrollers. |
Use Scenario: Protecting LIN bus transceivers and GPIOs in BCMs from battery reverse connection and load dump pulses. IC Role / Device Role / Timing Role: Unidirectional TVS on 12 V supply rail and LIN signal lines, rated for 175 °C ambient operation. Use Value: Survives repeated 1500 W surges without degradation and withstands under-hood thermal profiles up to 150 °C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0A | Same VWM (9.0 V), lower PPPM (600 W), smaller SMB package (3.5 mm x 3.5 mm). | Lower surge energy handling; suited for space-constrained PCBs where 1500 W is not required. | Select SMBJ9.0A when board area is critical and threat levels are limited to IEC 61000-4-2 contact discharge only. |
| 1.5KE9.0A | Identical electrical specs and 1.5KE package; differs only in packaging format (bulk vs. tape-and-reel E3/54). | No functional difference; same UL 497B listing and thermal derating curve. | Choose 1.5KE9.0A for manual assembly or prototyping; LCE9.0-E3/54 is optimized for automated SMT placement via 13" tape. |
Compared with SMBJ9.0A and 1.5KE9.0A, the LCE9.0-E3/54 provides identical clamping performance and UL certification but ships in industry-standard 13" paper tape (1400 units/reel) with E3 whisker-resistant plating - making it optimal for high-volume production of telecom and industrial equipment requiring traceable, RoHS-compliant components.
Availability
LCE9.0-E3/54 is available at Aetrix Electronics and suitable for industrial sensor interfaces, telecom line card protection, and automotive body control module designs requiring stable component supply, full RoHS compliance, and UL 497B certification.
Supply support for LCE9.0-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 efficiency, and application-specific validation.
The LCE9.0-E3/54 belongs to Vishay's Low Capacitance TRANSZORB® family, engineered specifically for high-speed signal line protection where low capacitance and precise clamping are essential - targeting telecom, industrial automation, and automotive subsystems.
FAQ
What is the maximum clamping voltage of the LCE9.0-E3/54 under surge conditions?
The LCE9.0-E3/54 has a maximum clamping voltage (VC) of 15.4 V at 97 A peak pulse current (IPP) with a 10/1000 µs waveform. This value is measured per Figure 3 in the official Vishay datasheet (Document Number: 88357) and defines the upper voltage limit imposed on protected circuitry during transient events. The LCE9.0-E3/54 maintains this clamping performance across its specified operating temperature range.
Is the LCE9.0-E3/54 suitable for bidirectional signal line protection?
No, the LCE9.0-E3/54 is a unidirectional TVS diode and must be used with a second device in anti-parallel configuration for AC or bidirectional signal protection. Its polarity is marked by a cathode band, and it conducts only in reverse avalanche mode. For native bidirectional protection, a dedicated part like the LCE9.0CA would be required - the LCE9.0-E3/54 itself does not support symmetrical clamping.
Does the LCE9.0-E3/54 meet UL 497B certification for telecom applications?
Yes, the LCE9.0-E3/54 is UL listed under file number E136766 for Telecom Application Protection per UL 497B. This certification confirms its suitability for use in primary and secondary telecom circuits, including POTS, DSL, and T1/E1 interfaces. The UL listing applies directly to the LCE9.0-E3/54 as shipped, with no additional qualification needed by the end user.
What is the junction capacitance of the LCE9.0-E3/54 and how does it affect high-speed signals?
The LCE9.0-E3/54 has a maximum junction capacitance of 100 pF at 0 V, measured per the Vishay datasheet. This low capacitance minimizes loading on signal lines, preserving rise/fall times and reducing insertion loss - making it appropriate for data rates up to ~10 MHz (e.g., RS-485, CAN FD physical layer, or legacy USB 2.0). Higher-speed interfaces may require sub-10 pF devices.
Can the LCE9.0-E3/54 be used in automotive under-hood applications?
Yes, the LCE9.0-E3/54 supports a maximum junction temperature of 175 °C and is qualified for operation in harsh thermal environments. Its 1.5KE package and glass-passivated junction provide mechanical and thermal robustness suitable for automotive body control modules, junction boxes, and other under-hood locations - provided board-level thermal design maintains junction temperature within spec during surge events.
LCE9.0-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):
- 9V
- Voltage - Breakdown (Min):
- 10V
- Voltage - Clamping (Max) @ Ipp:
- 16.9V
- Current - Peak Pulse (10/1000µs):
- 89A
- 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
LCE9.0-E3/54 FAQ
1.How can I place an order for LCE9.0-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for LCE9.0-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 LCE9.0-E3/54 reliable?
The price and inventory of LCE9.0-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 LCE9.0-E3/54 is usually 5 days.
3.What payment methods are accepted for LCE9.0-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LCE9.0-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LCE9.0-E3/54?
LCE9.0-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LCE9.0-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 LCE9.0-E3/54?
For technical support, including LCE9.0-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LCE9.0-E3/54 requirements.
6.How does Aetrix verify that LCE9.0-E3/54 is sourced from the original manufacturer or authorized distributors?
All LCE9.0-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 LCE9.0-E3/54 meets industry standards.
7.What is the process for return or replacement of LCE9.0-E3/54?
All LCE9.0-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with LCE9.0-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 LCE9.0-E3/54 part is unused and in its original packaging.
Return procedure for LCE9.0-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LCE9.0-E3/54 Tags
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