My Inquiry
My Account
Vishay General Semiconductor - Diodes Division LCE9.0A-E3/54
- Part No.:
- LCE9.0A-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
LCE9.0A-E3/54.pdf
- Description:
- TVS DIODE 9VWM 15.4VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:5,909
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LCE9.0A-E3/54 from Vishay General Semiconductor is a unidirectional low-capacitance TRANSZORB® transient voltage suppressor (TVS) diode designed for robust overvoltage protection of sensitive signal lines. It features a 9.0 V standoff voltage (VWM), 10.0–11.1 V breakdown voltage (VBR), 15.4 V clamping voltage at 97 A peak pulse current, 1500 W peak pulse power (10/1000 µs), and operates across –65 °C to +175 °C junction temperature range.
For engineers reviewing the LCE9.0A-E3/54 datasheet, LCE9.0A-E3/54 pinout, LCE9.0A-E3/54 application, or LCE9.0A-E3/54 equivalent, key selection considerations include its unidirectional polarity, 1.5KE package compatibility, UL 497B listing for telecom surge protection, and low incremental surge resistance enabling precise clamping in fast-rising transients.
Technical Context
The LCE9.0A-E3/54 employs a glass-passivated silicon junction optimized for rapid response (<1 ns) to ESD and lightning-induced surges. Its unidirectional configuration provides reverse-biased clamping only, with a maximum reverse leakage of 10 µA at VWM and 1.0 mA at VWIB, ensuring minimal standby power loss in protected circuits.
Rated for 1500 W peak pulse power under 10/1000 µs waveform and derated linearly above 25 °C ambient, it delivers stable clamping performance up to 175 °C junction temperature. The device meets JESD22-B106 solderability (275 °C, 10 s) and JESD201 Class 1A whisker resistance, supporting high-reliability industrial and telecom deployments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - Maximum continuous reverse operating voltage before clamping begins; sets safe margin below system supply rails. |
| VBR (min/max) | 10.0 V / 11.1 V - Breakdown threshold range at 1 mA test current; defines onset of avalanche conduction. |
| VC @ IPP | 15.4 V at 97 A - Clamped voltage during 10/1000 µs surge; determines maximum stress on downstream ICs. |
| PPPM | 1500 W - Peak pulse power handling capability; supports high-energy transients without failure. |
| Junction Capacitance | 100 pF at 0 V - Low capacitance preserves signal integrity on high-speed data lines (e.g., RS-485, CAN). |
| TJ max. | +175 °C - High-temperature operation enables use in under-hood automotive or industrial power supplies. |
| Polarity | Unidirectional - Provides reverse-biased clamping only; requires correct orientation relative to DC bias. |
Pinout & Package
Package: 1.5KE molded epoxy case (Case Style 1.5KE), RoHS-compliant, matte tin-plated leads, UL 94 V-0 rated. Cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to circuit ground or lowest potential node; forms return path during clamping. |
| Cathode | High-side surge input terminal | Connected to protected line; conducts avalanche current to anode when VAK exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables sub-nanosecond response time and stable long-term reliability under repetitive surge stress. |
| 1500 W peak pulse power (10/1000 µs) | Withstands high-energy lightning surges per IEC 61000-4-5 Level 4 without degradation. |
| UL 497B listed (E136766) | Qualified for telecom interface protection including POTS, DSL, and T1/E1 line cards. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients, improving clamping precision. |
| JESD201 Class 1A whisker resistance | Ensures mechanical stability of tin-plated leads in high-humidity or thermal-cycling environments. |
Applications
| Industrial Sensor Interfaces | Telecom Line Cards |
|---|---|
Use Scenario: Protecting analog sensor outputs (e.g., 4–20 mA loops, RTD bridges) from inductive switching noise and ESD events in factory automation cabinets. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between signal line and ground, clamping transients before they reach ADC front-end or isolation amplifier. Use Value: 100 pF capacitance avoids signal distortion at ≤100 kHz bandwidth; 15.4 V clamping prevents latch-up in 12 V–24 V powered sensors. |
Use Scenario: Surge protection on subscriber line interfaces (SLIC) and xDSL line drivers in central office and CPE equipment. IC Role / Device Role / Timing Role: Primary protection device on tip/ring pairs, coordinated with gas discharge tubes (GDTs) for multi-stage telecom surge immunity. Use Value: UL 497B certification ensures compliance with Telcordia GR-1089-CORE; 1500 W rating handles longitudinal surges up to 10 A (10/1000 µs). |
| Automotive Body Control Modules | Consumer USB/Serial Port Protection |
Use Scenario: Safeguarding LIN bus transceivers and microcontroller GPIOs against load dump and ISO 7637-2 pulse 5a/b transients in vehicle body electronics. IC Role / Device Role / Timing Role: Point-of-entry TVS on LIN signal line, mounted adjacent to connector to minimize inductance and overshoot. Use Value: 175 °C max junction temperature supports under-dash mounting; 97 A peak current rating covers worst-case 12 V system transients. |
Use Scenario: ESD and surge protection on RS-232, RS-485, or USB 2.0 D+/D− lines in set-top boxes, printers, and POS terminals. IC Role / Device Role / Timing Role: Secondary-level protection after common-mode chokes, shunting differential-mode transients to ground. Use Value: 100 pF capacitance maintains signal rise/fall times <1 ns; 15.4 V clamping stays below USB 3.3 V VDD tolerance limits. |
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-E3/52 | Same VWM (9.0 V) and VC (15.4 V), but lower PPPM (600 W) and smaller SMB package (vs. 1.5KE). | Lower power handling limits use to low-energy ESD-only scenarios; unsuitable for IEC 61000-4-5 Level 3+. | Select when board space is constrained and surge energy is limited to ±8 kV contact ESD (IEC 61000-4-2). |
| 1.5KE9.0A | Identical electrical specs and 1.5KE package, but non-RoHS (lead-bearing) and no JESD201 whisker testing. | Not qualified for automotive or medical applications requiring lead-free and whisker-resistant finishes. | Choose only for legacy industrial designs where RoHS and whisker compliance are not mandated. |
Compared with SMBJ9.0A-E3/52 and 1.5KE9.0A, the LCE9.0A-E3/54 uniquely combines full RoHS compliance, JESD201 Class 1A whisker resistance, UL 497B listing, and 1500 W surge capacity in the 1.5KE footprint-making it optimal for new telecom and industrial designs requiring certified, high-reliability protection.
Availability
LCE9.0A-E3/54 is available at Aetrix Electronics and suitable for industrial sensor interfaces, telecom line cards, and automotive body control modules requiring stable component supply, long-lifecycle support, and certified surge immunity.
Supply support for LCE9.0A-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 optimization.
The LCE9.0A-E3/54 belongs to Vishay's TRANSZORB® low-capacitance TVS family, engineered specifically for high-speed signal line protection in telecom, industrial, and automotive systems where clamping precision and surge endurance are critical.
FAQ
What is the clamping voltage of the LCE9.0A-E3/54 at its rated peak pulse current?
The LCE9.0A-E3/54 has a maximum clamping voltage (VC) of 15.4 V at 97 A peak pulse current (IPP) under the standard 10/1000 µs waveform. This value is measured per Figure 3 in Vishay document 88357 and defines the upper voltage limit imposed on protected circuitry during surge events. Maintaining VC below downstream IC absolute maximum ratings is essential for reliable protection design using the LCE9.0A-E3/54.
Is the LCE9.0A-E3/54 suitable for bidirectional signal line protection?
No, the LCE9.0A-E3/54 is a unidirectional TVS diode and must be used in conjunction with a second device oriented oppositely-or paired with a bidirectional variant like LCE9.0CA-for AC or bipolar signal lines. Its single-polarity construction clamps only reverse-biased transients; forward conduction is not specified. For true bidirectional protection, designers should select the LCE9.0CA-E3/54 or implement dual-diode configurations per Figure 4 in the LCE6.5A–LCE28A datasheet.
Does the LCE9.0A-E3/54 meet UL 497B requirements for telecom surge protection?
Yes, the LCE9.0A-E3/54 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 interfaces, including POTS, DSL, and T1/E1 line cards. The listing applies specifically to the LCE9.0A-E3/54 and other members of the LCE6.5A–LCE28A series as documented in Vishay's 88357 specification sheet.
What is the maximum junction temperature rating for the LCE9.0A-E3/54?
The LCE9.0A-E3/54 has a maximum junction temperature (TJ) rating of +175 °C, as specified in the "Maximum Ratings" table of Vishay document 88357. This high-temperature capability allows deployment in demanding environments such as under-hood automotive electronics, industrial motor drives, and enclosed power supplies where ambient temperatures exceed 100 °C. Derating curves in Figure 2 confirm usable power dissipation down to TL = 75 °C.
How does the LCE9.0A-E3/54 differ from the standard 1.5KE9.0A in terms of compliance and reliability?
The LCE9.0A-E3/54 is RoHS-compliant (E3 suffix), passes JESD201 Class 1A whisker testing, and carries UL 497B certification-features not guaranteed for the legacy 1.5KE9.0A. While both share identical electrical parameters and 1.5KE packaging, the LCE9.0A-E3/54 is qualified for modern high-reliability applications requiring lead-free assembly, long-term intermetallic stability, and telecom regulatory approval. The 1.5KE9.0A lacks these qualifications and is intended for non-critical or legacy use only.
LCE9.0A-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:
- 15.4V
- Current - Peak Pulse (10/1000µs):
- 97A
- 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
LCE9.0A-E3/54 FAQ
1.How can I place an order for LCE9.0A-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for LCE9.0A-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 LCE9.0A-E3/54 reliable?
The price and inventory of LCE9.0A-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 LCE9.0A-E3/54 is usually 5 days.
3.What payment methods are accepted for LCE9.0A-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LCE9.0A-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LCE9.0A-E3/54?
LCE9.0A-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LCE9.0A-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 LCE9.0A-E3/54?
For technical support, including LCE9.0A-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LCE9.0A-E3/54 requirements.
6.How does Aetrix verify that LCE9.0A-E3/54 is sourced from the original manufacturer or authorized distributors?
All LCE9.0A-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 LCE9.0A-E3/54 meets industry standards.
7.What is the process for return or replacement of LCE9.0A-E3/54?
All LCE9.0A-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with LCE9.0A-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 LCE9.0A-E3/54 part is unused and in its original packaging.
Return procedure for LCE9.0A-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LCE9.0A-E3/54 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
