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Vishay General Semiconductor - Diodes Division LCE16-E3/73
- Part No.:
- LCE16-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
LCE16-E3/73.pdf
- Description:
- TVS DIODE 16VWM 28.8VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:3,378
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Product details
Overview
LCE16-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 16 V standoff voltage (VWM), 17.8–19.7 V breakdown voltage (VBR), 1500 W peak pulse power (10/1000 µs), 26.0 V maximum clamping voltage at 57 A, and operates across –65 °C to +175 °C junction temperature.
For engineers reviewing the LCE16-E3/73 datasheet, LCE16-E3/73 pinout, LCE16-E3/73 application, or LCE16-E3/73 equivalent, key selection criteria include clamping performance under 10/1000 µs surge, unidirectional polarity with cathode band marking, 1.5KE package compatibility, and UL 497B listing for telecom surge protection.
Technical Context
The LCE16-E3/73 implements a glass-passivated PN junction optimized for fast response (<1 ns) to transient overvoltages while maintaining low incremental surge resistance. Its unidirectional configuration provides reverse-biased clamping only, requiring external polarity alignment in circuit design.
Rated for 1500 W peak pulse power per 10/1000 µs waveform at 0.01% duty cycle, it delivers 57 A peak surge current with 26.0 V clamping - enabling reliable protection of MOSFET gates, IC power rails, and sensor signal lines against inductive switching transients and lightning-induced surges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16.0 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 17.8 V / 19.7 V - Breakdown occurs within this range at 1.0 mA test current |
| VC @ IPP | 26.0 V - Clamped voltage seen by protected circuit during 57 A 10/1000 µs surge |
| PPPM | 1500 W - Peak transient energy absorption capability under standard surge waveform |
| Junction Temp Range | –65 °C to +175 °C - Enables use in under-hood automotive, industrial motor drives, and telecom base stations |
| Capacitance | 100 pF at 0 V - Low enough for signal line protection without degrading high-speed integrity |
| Polarity | Unidirectional - Cathode marked by color band; blocks forward current, clamps reverse surges |
Pinout & Package
Package: 1.5KE molded epoxy case (DO-201AD), RoHS-compliant, matte tin-plated leads, UL 94 V-0 rated, 0.375" lead length.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., GND or return path) in unidirectional clamp configuration |
| Cathode | Clamping terminal | Marked by color band; connected to protected line (e.g., VCC, signal) to divert surge to ground |
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 | Withstands high-energy transients common in industrial motor controls and telecom line interfaces |
| UL 497B listed | Validated for telecom surge protection applications including DSL, POTS, and T1/E1 lines |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes voltage overshoot during clamping, reducing risk of downstream IC damage |
Applications
| Industrial Motor Drives | Telecom Line Interfaces |
|---|---|
Use Scenario: Protection of gate drivers and feedback sensors in variable-frequency drives subjected to inductive kickback from IGBTs. IC Role / Device Role / Timing Role: TVS diode placed across DC bus or gate resistor to clamp voltage spikes before they reach control ICs. Use Value: 26.0 V clamping at 57 A prevents latch-up or oxide breakdown in 3.3 V/5 V logic interfaces tied to high-side drivers. | Use Scenario: Surge suppression on twisted-pair telephone lines (POTS/DSL) exposed to lightning-induced common-mode transients. IC Role / Device Role / Timing Role: Unidirectional TVS installed between tip/ring and ground to shunt differential surges exceeding 16 V. Use Value: UL 497B certification ensures compliance with telecom safety standards; 100 pF capacitance avoids signal attenuation at voiceband frequencies. |
| Automotive Body Control Modules | Consumer Sensor Signal Conditioning |
Use Scenario: Protecting LIN bus transceivers and microcontroller I/O pins from load-dump and jump-start transients in 12 V systems. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to absorb ISO 7637-2 Pulse 5a (load dump) energy before reaching MCU. Use Value: 175 °C max junction temperature supports placement near engine compartments; 16 V VWM matches nominal battery rail. | Use Scenario: Shielding analog outputs of MEMS accelerometers and temperature sensors from ESD events during handling or PCB assembly. IC Role / Device Role / Timing Role: Low-capacitance TVS placed directly at sensor output pin to suppress HBM ±8 kV discharges without distorting low-bandwidth signals. Use Value: 100 pF capacitance preserves signal fidelity below 1 MHz; 1.0 µA leakage at VWM avoids loading precision analog stages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16A | Same VWM (16 V), lower PPPM (600 W), smaller SMB package (3.5 mm × 3.5 mm) | Better suited for space-constrained PCBs; insufficient for 1500 W telecom line surges | Select when board area is critical and surge energy is ≤600 W |
| 1.5KE16A | Identical electrical specs and 1.5KE package; same Vishay family, different suffix coding (E3/73 vs. standard E3) | No functional difference; both UL 497B listed and RoHS compliant | Direct form-fit-function replacement; verify reel packaging (73 = 800 pcs/reel) matches production needs |
Compared with SMBJ16A and 1.5KE16A, the LCE16-E3/73 offers identical clamping and thermal performance to 1.5KE16A but with verified tape-and-reel logistics (E3/73), while providing higher surge margin than SMBJ16A for infrastructure-grade protection where PCB real estate permits the larger 1.5KE outline.
Availability
LCE16-E3/73 is available at Aetrix Electronics and suitable for industrial motor drives, telecom line interfaces, and automotive body control modules requiring stable component supply and certified surge protection.
Supply support for LCE16-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 TVS devices with emphasis on reliability, power handling, and industry certifications.
The LCE series belongs to Vishay's low-capacitance TRANSZORB® TVS family, engineered specifically for high-energy transient suppression in telecom, industrial, and automotive environments where clamping accuracy and surge endurance are critical.
FAQ
What is the clamping voltage of the LCE16-E3/73 under a 10/1000 µs surge?
The LCE16-E3/73 clamps to a maximum of 26.0 V when subjected to its rated 57 A peak pulse current (IPP) under the standardized 10/1000 µs waveform. This value is guaranteed across temperature and represents the upper limit of voltage imposed on the protected circuit during surge events, ensuring safe operation of downstream 3.3 V or 5 V ICs.
Is the LCE16-E3/73 suitable for bidirectional signal line protection?
No - the LCE16-E3/73 is a unidirectional TVS diode, intended for DC or single-polarity line protection. For AC or bidirectional signal lines (e.g., RS-485, USB D+/D−), two LCE16-E3/73 units must be used in series opposition, or a dedicated bidirectional part such as the LCE16CA should be selected instead.
Does the LCE16-E3/73 meet UL 497B requirements for telecom surge protection?
Yes - the LCE16-E3/73 is UL listed under file E136766 for Telecom Application Protection per UL 497B. This certification confirms its suitability for primary and secondary surge protection in telephone network interface equipment, including DSLAMs, PBX systems, and VoIP gateways.
What is the maximum operating temperature for the LCE16-E3/73?
The LCE16-E3/73 has a maximum junction temperature (TJ) rating of +175 °C and a storage temperature range of –65 °C to +175 °C. This enables deployment in high-temperature environments such as engine bays, industrial inverters, and outdoor telecom cabinets without derating concerns up to the specified limit.
How is polarity identified on the LCE16-E3/73 package?
Polarity is marked by a color band on the cathode end of the LCE16-E3/73's 1.5KE molded epoxy case. During PCB layout, the banded end must be connected to the line being protected (e.g., VCC, signal), while the anode connects to ground or the reference potential - consistent with standard unidirectional TVS placement conventions.
LCE16-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):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 28.8V
- Current - Peak Pulse (10/1000µs):
- 52A
- 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
LCE16-E3/73 FAQ
1.How can I place an order for LCE16-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for LCE16-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 LCE16-E3/73 reliable?
The price and inventory of LCE16-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 LCE16-E3/73 is usually 5 days.
3.What payment methods are accepted for LCE16-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LCE16-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LCE16-E3/73?
LCE16-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LCE16-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 LCE16-E3/73?
For technical support, including LCE16-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LCE16-E3/73 requirements.
6.How does Aetrix verify that LCE16-E3/73 is sourced from the original manufacturer or authorized distributors?
All LCE16-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 LCE16-E3/73 meets industry standards.
7.What is the process for return or replacement of LCE16-E3/73?
All LCE16-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with LCE16-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 LCE16-E3/73 part is unused and in its original packaging.
Return procedure for LCE16-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LCE16-E3/73 Tags
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