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Vishay General Semiconductor - Diodes Division LCE13A-E3/73
- Part No.:
- LCE13A-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
LCE13A-E3/73.pdf
- Description:
- TVS DIODE 13VWM 21.5VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:4,110
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Product details
Overview
LCE13A-E3/73 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode designed for robust overvoltage protection in DC power and signal lines. It features a 13.0 V stand-off voltage (VWM), 14.4–15.9 V breakdown voltage (VBR), 1500 W peak pulse power (10/1000 µs), 21.5 V clamping voltage at 70 A peak current, and operates up to 175 °C junction temperature.
For engineers reviewing the LCE13A-E3/73 datasheet, LCE13A-E3/73 pinout, LCE13A-E3/73 application, or LCE13A-E3/73 equivalent, key selection criteria include clamping performance under 10/1000 µs surge, unidirectional polarity for DC rail protection, RoHS-compliant matte tin-plated leads, and UL 497B listing for telecom surge immunity.
Technical Context
The LCE13A-E3/73 employs a glass-passivated silicon junction for stable avalanche behavior and low incremental surge resistance. Its 1.5KE case style supports high-energy transients while maintaining low capacitance (≤100 pF at 0 V), enabling use on moderately speed-sensitive lines without signal integrity degradation.
Designed for single-pulse and repetitive surge suppression, it delivers 70 A peak pulse current (IPPM) with 21.5 V clamping at that level, and derates linearly above 25 °C ambient per the published power derating curve. The color band denotes cathode polarity, and terminals comply with J-STD-002 solderability and JESD 201 Class 1A whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13.0 V - Maximum continuous reverse operating voltage before conduction begins |
| VBR (min/max) | 14.4 V / 15.9 V - Breakdown occurs within this range at 1 mA test current, defining turn-on threshold |
| VC @ IPPM | 21.5 V - Clamped voltage seen by protected circuit during 70 A 10/1000 µs surge |
| PPPM | 1500 W - Peak transient power handling capability under standard 10/1000 µs waveform |
| IPPM | 70 A - Maximum non-repetitive surge current the device safely clamps without failure |
| Junction Temp | −65 °C to +175 °C - Enables operation in harsh industrial and automotive under-hood environments |
| Capacitance | ≤100 pF at 0 V - Low enough for use on RS-485, CAN, or sensor analog lines without bandwidth loss |
Pinout & Package
Package: 1.5KE molded epoxy case (Case Style 1.5KE), DO-201AD outline, RoHS-compliant matte tin-plated leads, UL 94 V-0 rated molding compound. Polarity indicated by cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current return path | Connected to ground or lower-potential rail; carries full surge current during clamping |
| Cathode | Protected line connection | Connected to line being protected (e.g., +12 V rail); color band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable, repeatable avalanche characteristics and long-term reliability under repeated surges |
| 1500 W peak pulse power | Supports IEC 61000-4-5 Level 4 (4 kV) surge testing on 50 Ω/42 Ω coupling networks |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes let-through voltage to protect downstream ICs with tight absolute maximum ratings |
| UL 497B listed | Validated for telecom interface protection including DSL, POTS, and T1/E1 line cards |
| JESD 201 Class 1A whisker resistance | Enables reliable long-term solder joint integrity in high-reliability industrial control applications |
Applications
| Industrial Motor Control | Automotive Body Control Module |
|---|---|
Use Scenario: Protection of 12 V supply rails feeding microcontrollers and gate drivers against inductive kickback from relay and solenoid switching. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VCC and GND to clamp positive transients only. Use Value: Limits voltage excursions to ≤21.5 V during 70 A surges, preventing latch-up or oxide damage in 3.3 V/5 V logic ICs powered from the same rail. | Use Scenario: Surge suppression on LIN bus lines and sensor inputs exposed to load dump and jump-start conditions. IC Role / Device Role / Timing Role: Standoff-rated TVS connected anode-to-ground, cathode-to-LIN line to absorb fast-rising transients. Use Value: Withstands 1500 W pulses and operates up to 175 °C, meeting AEC-Q101 stress requirements for under-dash electronics. |
| Telecom DSL Line Card | Consumer Power Adapter Output |
Use Scenario: Primary protection on twisted-pair DSL ports subject to lightning-induced surges per ITU-T K.21 and UL 497B. IC Role / Device Role / Timing Role: UL-listed unidirectional TVS used in series with gas discharge tube (GDT) for coordinated two-stage protection. Use Value: Provides fast response (<1 ns) and low clamping to safeguard ADSL transceivers while meeting telecom safety certification requirements. | Use Scenario: Secondary-side overvoltage clamp on 5 V/9 V/12 V USB-C PD adapter outputs to meet IEC 62368-1 transient immunity. IC Role / Device Role / Timing Role: Final-line TVS placed immediately before connector to limit output voltage during fault conditions. Use Value: 13.0 V VWM ensures no leakage during normal operation; 21.5 V VC prevents damage to connected devices during surge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ13A-E3/52 | Same VWM (13 V), lower PPPM (600 W), SMB package (smaller footprint, lower IPPM = 33.3 A) | Better suited for space-constrained PCBs where 600 W surge rating suffices | Select when board area is critical and surge threat level is moderate (IEC 61000-4-5 Level 2) |
| 1.5KE13A | Identical electrical specs and 1.5KE package; differs only in packaging suffix (bulk vs. tape/reel) and RoHS compliance status | No functional difference; used interchangeably where E3 suffix not required | Choose for cost-sensitive industrial designs where RoHS exemption applies or legacy procurement is in place |
Compared with SMBJ13A-E3/52 and 1.5KE13A, the LCE13A-E3/73 offers identical surge clamping performance in a RoHS-compliant, tape-and-reel format optimized for automated SMT assembly-making it ideal for high-volume telecom and industrial production requiring traceable sourcing and whisker-resistant terminations.
Availability
LCE13A-E3/73 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, telecom line card protection, and consumer power adapter design requiring stable component supply across multi-year production cycles.
Supply support for LCE13A-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 protection devices with emphasis on reliability, power efficiency, and application-specific validation.
The LCE13A-E3/73 belongs to Vishay's low-capacitance TRANSZORB® TVS family, engineered specifically for high-energy transient suppression in telecom, industrial, and automotive systems where clamping precision and thermal robustness are critical.
FAQ
What is the maximum clamping voltage of the LCE13A-E3/73 under surge conditions?
The LCE13A-E3/73 has a maximum clamping voltage (VC) of 21.5 V at 70 A peak pulse current (10/1000 µs waveform). This value is guaranteed per the manufacturer's electrical characteristics table and defines the highest voltage imposed on the protected circuit during worst-case transient events. Maintaining VC below downstream IC absolute maximum ratings is essential for reliable system-level surge immunity-LCE13A-E3/73 achieves this while delivering 1500 W peak power handling.
Is the LCE13A-E3/73 suitable for AC line protection?
No, the LCE13A-E3/73 is a unidirectional TVS diode and is not rated for bidirectional AC line protection. For AC applications such as mains input or telephone line interfaces, Vishay recommends using two LCE13A-E3/73 devices in anti-parallel configuration or selecting a dedicated bidirectional part like the LCE13CA. The LCE13A-E3/73's single-polarity design makes it optimal for DC rails, sensor lines, and unidirectional data buses where only positive-going transients require suppression.
Does the LCE13A-E3/73 meet UL 497B certification?
Yes, the LCE13A-E3/73 is UL listed under file E136766 for Telecom Application Protection per UL 497B. This certification validates its suitability for use in primary and secondary circuits of telecommunications equipment-including DSL modems, VoIP adapters, and base station line cards-where standardized surge immunity and fire-safety compliance are mandatory. The UL recognition applies directly to the LCE13A-E3/73 device as shipped in its 1.5KE package.
What is the lead finish and solderability specification for LCE13A-E3/73?
The LCE13A-E3/73 features matte tin-plated leads compliant with J-STD-002 for solderability and JESD 22-B102 for terminal strength. Its E3 suffix confirms qualification to JESD 201 Class 1A whisker resistance, ensuring long-term interconnect reliability in thermally cycled environments. The device supports solder reflow profiles up to 275 °C for 10 seconds (per JESD 22-B106), making it compatible with standard lead-free assembly processes used in industrial and telecom manufacturing.
How does the LCE13A-E3/73 compare to standard 1.5KE series TVS diodes?
The LCE13A-E3/73 is a member of the 1.5KE family but distinguishes itself with enhanced low-capacitance performance (≤100 pF), tighter parameter tolerances, and RoHS-compliant E3 plating. Unlike generic 1.5KE13A variants, the LCE13A-E3/73 undergoes additional screening for telecom-grade reliability and is explicitly UL 497B listed. Its 13.0 V VWM, 14.4–15.9 V VBR, and 21.5 V VC are identical to baseline 1.5KE13A, but the LCE prefix signals qualification for higher-reliability applications demanding verified surge consistency and traceable material compliance.
LCE13A-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):
- 13V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 21.5V
- Current - Peak Pulse (10/1000µs):
- 70A
- 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
LCE13A-E3/73 FAQ
1.How can I place an order for LCE13A-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for LCE13A-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 LCE13A-E3/73 reliable?
The price and inventory of LCE13A-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 LCE13A-E3/73 is usually 5 days.
3.What payment methods are accepted for LCE13A-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LCE13A-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LCE13A-E3/73?
LCE13A-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LCE13A-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 LCE13A-E3/73?
For technical support, including LCE13A-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LCE13A-E3/73 requirements.
6.How does Aetrix verify that LCE13A-E3/73 is sourced from the original manufacturer or authorized distributors?
All LCE13A-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 LCE13A-E3/73 meets industry standards.
7.What is the process for return or replacement of LCE13A-E3/73?
All LCE13A-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with LCE13A-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 LCE13A-E3/73 part is unused and in its original packaging.
Return procedure for LCE13A-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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