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Vishay General Semiconductor - Diodes Division LCE16A-E3/73
- Part No.:
- LCE16A-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
LCE16A-E3/73.pdf
- Description:
- TVS DIODE 16VWM 26VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:5,724
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Product details
Overview
LCE16A-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 16.0 V standoff voltage (VWM), 17.8–19.7 V breakdown voltage (VBR), 1500 W peak pulse power (10/1000 µs), 26.0 V clamping voltage at 57 A peak current, and operates from –65 °C to +175 °C junction temperature - deployed in industrial sensor signal lines and MOSFET gate protection.
For engineers reviewing the LCE16A-E3/73 datasheet, LCE16A-E3/73 pinout, LCE16A-E3/73 application, or LCE16A-E3/73 equivalent, key selection criteria include clamping performance under 10/1000 µs surge, unidirectional polarity alignment with DC-biased circuits, thermal derating above 25 °C, and UL 497B listing for telecom surge protection compliance.
Technical Context
This TVS diode uses a glass-passivated chip junction and molded epoxy package (Case Style 1.5KE) to deliver fast response time (<1 ns) and low incremental surge resistance. Its unidirectional configuration enables integration into DC power rails and single-polarity signal paths where reverse conduction must be blocked until breakdown threshold is exceeded.
The device sustains 1500 W peak pulse power per IEC 61000-4-5 waveform (10/1000 µs), with clamping voltage tightly controlled at 26.0 V @ 57 A - ensuring downstream ICs remain below absolute maximum ratings during lightning-induced transients or inductive switching events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16.0 V - Maximum continuous reverse operating voltage before leakage exceeds 5 µA; sets upper limit for safe DC bias operation. |
| VBR (min/max) | 17.8 V / 19.7 V - Breakdown occurs within this range at 1 mA test current; defines turn-on threshold tolerance band. |
| VC @ IPP | 26.0 V @ 57 A - Clamped voltage during full 1500 W surge; determines maximum stress on protected circuitry. |
| PPPM | 1500 W - Peak pulse power handling capability per 10/1000 µs waveform; validates suitability for Level 4 IEC 61000-4-5 immunity. |
| TJ max. | +175 °C - Maximum junction temperature; supports high-ambient industrial environments without derating loss. |
| Capacitance | 100 pF @ 0 V - Low junction capacitance minimizes signal distortion on data lines up to ~10 MHz. |
| Polarity | Unidirectional - Cathode marked by color band; blocks reverse current until VBR, then clamps forward surges only. |
Pinout & Package
Package: Case Style 1.5KE - molded epoxy body with matte tin-plated leads, UL 94 V-0 rated, RoHS-compliant (E3 suffix), 0.375" lead length, JESD 201 Class 1A whisker tested.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node; completes clamping path during overvoltage event. |
| Cathode | High-side surge input terminal | Marked by color band; receives transient energy and conducts to anode when VBR exceeded. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure. |
| 1500 W peak pulse rating | Supports direct protection against IEC 61000-4-5 Level 4 (4 kV line-to-earth, 2 kV line-to-line) surges without external series impedance. |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes overvoltage overshoot during fast transients, reducing risk of latch-up or oxide damage in protected ICs. |
| UL 497B listed | Validated for telecom interface protection including POTS, DSL, and T1/E1 lines - simplifies system-level certification. |
| Solder dip rated 275 °C / 10 s | Withstands standard wave soldering profiles without parametric shift or bond degradation. |
Applications
| Industrial Sensor Signal Protection | DC Power Rail Clamp |
|---|---|
Use Scenario: Protecting analog output lines (e.g., 4–20 mA, 0–10 V) of pressure/temperature sensors exposed to motor drive noise and relay switching transients. IC Role / Device Role / Timing Role: Transient voltage suppressor placed in parallel with sensor output and supply pins to shunt ESD and inductive kickback energy to ground. Use Value: Limits voltage excursion to ≤26.0 V during 57 A surge, preventing ADC input saturation and op-amp rail-to-rail latch-up. | Use Scenario: Safeguarding 12–24 V DC input rails of PLC modules and motor controllers subjected to load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional clamp connected between rail and ground, absorbing positive-going spikes while blocking reverse leakage during normal operation. Use Value: Maintains rail integrity below 26.0 V during 1500 W pulses, avoiding brownout resets and MOSFET gate oxide overstress. |
| Telecom Line Interface | MOSFET Gate Protection |
Use Scenario: Secondary surge protection on POTS or xDSL line cards upstream of integrated line drivers and transformers. IC Role / Device Role / Timing Role: UL 497B-listed TVS used in conjunction with primary gas discharge tube (GDT) to handle residual energy after GDT crowbar action. Use Value: Provides precise clamping at 26.0 V to protect line driver ICs rated for ≤30 V absolute maximum, meeting GR-1089-CORE requirements. | Use Scenario: Shielding N-channel MOSFET gates from Miller-induced voltage spikes during high-dI/dt switching in half-bridge inverters. IC Role / Device Role / Timing Role: Fast-response TVS placed between gate and source to clamp gate-source voltage to ≤26.0 V during dv/dt coupling events. Use Value: Prevents gate oxide breakdown and unintended turn-on by limiting VGS excursion beyond ±20 V rating of discrete power MOSFETs. |
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 (vs. 1.5KE), higher VC (26.0 V → 28.5 V). | Lower surge capacity limits use to Level 2/3 IEC 61000-4-5; unsuitable for telecom line interfaces requiring UL 497B. | Select when board space is constrained and surge threat level is moderate (e.g., internal PCB traces, not field wiring). |
| 1.5KE16A | Identical electrical specs (VWM, VBR, VC, PPPM) and 1.5KE package, but non-RoHS (no E3 suffix) and no JESD 201 whisker testing. | No UL 497B listing; not approved for telecom infrastructure; requires requalification for RoHS-compliant production. | Acceptable only for legacy industrial designs where RoHS and whisker resistance are not mandated. |
Compared with SMBJ16A and 1.5KE16A, the LCE16A-E3/73 delivers certified telecom-grade surge immunity in a RoHS-compliant, whisker-resistant 1.5KE package - making it the preferred choice for new designs targeting UL 497B compliance and extended thermal reliability.
Availability
LCE16A-E3/73 is available at Aetrix Electronics and suitable for industrial sensor interfaces, DC power rail clamping, and telecom line protection requiring stable component supply, long-lifecycle support, and traceable RoHS-compliant sourcing.
Supply support for LCE16A-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, TVS devices, and optoelectronics with emphasis on reliability, power handling, and application-specific qualification.
The LCE16A-E3/73 belongs to Vishay's Low Capacitance TRANSZORB® family - engineered for high-energy transient suppression in space-constrained, thermally demanding environments where fast clamping and low leakage are critical.
FAQ
What is the clamping voltage of the LCE16A-E3/73 under maximum surge conditions?
The LCE16A-E3/73 clamps to 26.0 V when subjected to its rated 57 A peak pulse current (10/1000 µs waveform). This value is guaranteed across temperature and represents the maximum voltage seen by protected circuitry during full-power transient events - critical for validating margin against downstream IC absolute maximum ratings. The LCE16A-E3/73 achieves this with low incremental surge resistance and tight VBR tolerance.
Is the LCE16A-E3/73 suitable for AC signal line protection?
No - the LCE16A-E3/73 is unidirectional and intended for DC-biased applications such as power rails and single-ended signal lines. For AC signal protection (e.g., telecom lines), two LCE16A-E3/73 units must be connected in series opposition (anode-to-anode or cathode-to-cathode) to provide bidirectional clamping. The LCE16A-E3/73 itself does not support symmetrical surge suppression in a single device.
Does the LCE16A-E3/73 meet UL 497B requirements for telecom surge protection?
Yes - the LCE16A-E3/73 is UL listed under file E136766 for Telecom Application Protection per UL 497B. This certification confirms its validated performance in protecting telephone line interfaces against lightning-induced surges and is documented in Vishay's official specification document 88357. The LCE16A-E3/73 meets both electrical and construction requirements for this standard.
What is the maximum operating temperature for the LCE16A-E3/73 junction?
The LCE16A-E3/73 has a maximum junction temperature (TJ) of +175 °C, enabling reliable operation in high-ambient environments such as motor control enclosures, industrial power supplies, and outdoor telecom cabinets. Derating begins above 25 °C ambient per the published power derating curve, and the LCE16A-E3/73 maintains full 1500 W pulse capability only at TA ≤ 25 °C.
How is polarity identified on the LCE16A-E3/73 package?
Polarity is indicated by a color band on the cathode end of the LCE16A-E3/73 - consistent with standard diode marking convention. The banded end connects to the higher-potential side (e.g., power rail or signal line), while the unbanded end connects to ground or reference. This marking is visible on the molded epoxy body and aligns with the device's unidirectional conduction behavior - the LCE16A-E3/73 conducts only when cathode voltage exceeds anode by ≥VBR.
LCE16A-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:
- 26V
- Current - Peak Pulse (10/1000µs):
- 57A
- 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
LCE16A-E3/73 FAQ
1.How can I place an order for LCE16A-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for LCE16A-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 LCE16A-E3/73 reliable?
The price and inventory of LCE16A-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 LCE16A-E3/73 is usually 5 days.
3.What payment methods are accepted for LCE16A-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LCE16A-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LCE16A-E3/73?
LCE16A-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LCE16A-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 LCE16A-E3/73?
For technical support, including LCE16A-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LCE16A-E3/73 requirements.
6.How does Aetrix verify that LCE16A-E3/73 is sourced from the original manufacturer or authorized distributors?
All LCE16A-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 LCE16A-E3/73 meets industry standards.
7.What is the process for return or replacement of LCE16A-E3/73?
All LCE16A-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with LCE16A-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 LCE16A-E3/73 part is unused and in its original packaging.
Return procedure for LCE16A-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LCE16A-E3/73 Tags
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