LCDA12C-1.TCT SEMTECH TVS Diode (Uni-directional) (Other) In Stock
The LCDA12C-1.TCT from SEMTECH is a unidirectional silicon transient voltage suppressor (TVS) diode in a TO-253AA 4-pin package with a 13.3 V minimum breakdown voltage. This RoHS-compliant device clamps ESD and surge transients on signal and power lines in industrial and communication equipment.
- Manufacturer
- SEMTECH
- Package
- Other
- Pin Count
- 4
- Lifecycle
- ACTIVE
- Datasheet
- LCDA12C-1.TCT Datasheet PDF
- Category
- TVS Diode (Uni-directional)
- Price
- From $0.9090(MOQ 25)
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Unidirectional TVS diode with 13.3 V minimum breakdown voltage for precise clamping of positive-polarity transients on 12 V signal lines
- Silicon TO-253AA (4-pin SOT-143 compatible) surface-mount package enabling compact ESD protection placement near sensitive IC pins
- RoHS-compliant (JESD-609 e3) halogen-free construction meeting modern environmental compliance requirements for industrial and consumer applications
Applications
The LCDA12C-1.TCT protects communication interface lines, RS-422/RS-485 bus transceivers, and 12 V power supply rails from ESD strikes and cable-discharge events by clamping overvoltage transients at the TVS breakdown threshold. Its compact TO-253AA 4-pin footprint allows placement on port protection circuits in industrial control modules, building automation gateways, and networking equipment where board space near the I/O connector is limited.
Specifications
| Pbfree Code | Yes |
| Factory Lead Time | 13Weeks |
| YTEOL | 6.66 |
| Breakdown Voltage-Min | 13.3V |
| Configuration | COMPLEX |
| Diode Element Material | SILICON |
| Diode Type | TRANS VOLTAGE SUPPRESSOR DIODE |
| JEDEC-95 Code | TO-253AA |
| JESD-30 Code | R-PDSO-G4 |
| JESD-609 Code | e3 |
| Non-rep Peak Rev Power Dis-Max | 500W |
| Number of Elements | 2 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Polarity | BIDIRECTIONAL |
| Qualification Status | Not Qualified |
| Rep Pk Reverse Voltage-Max | 12V |
| Surface Mount | YES |
| Technology | AVALANCHE |
| Terminal Finish | MATTE TIN |
| Terminal Form | GULL WING |
| Terminal Position | DUAL |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8541.10.00.50 |
| Country of Origin | Mainland China |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LCDA12C-1.TCT:
suggested
suggested
suggested
suggested
suggested
Frequently Asked Questions
At what voltage does the LCDA12C-1.TCT begin conducting to clamp a transient on a 12 V signal line?
The LCDA12C-1.TCT has a minimum breakdown voltage of 13.3 V, so it begins conducting during positive transients that exceed this threshold on 12 V signal or supply lines. In practice, the clamping voltage at peak surge current is higher than the 13.3 V breakover point, and engineers should consult the full device datasheet for the clamping voltage at the rated peak pulse current when designing ESD protection for RS-422 or CAN bus interfaces.
How does the TO-253AA 4-pin package of the LCDA12C-1.TCT enable multi-line ESD protection in a single component?
The TO-253AA (also referred to as SOT-143) 4-pin package of the LCDA12C-1.TCT incorporates a complex TVS configuration that can protect multiple lines simultaneously using its 4 leads. This allows a single LCDA12C-1.TCT to clamp transients on 2 signal lines referenced to ground, reducing the component count and PCB area required for ESD protection compared to using two individual single-line TVS diodes in SOD-323 packages.
Why is the LCDA12C-1.TCT suitable for protecting RS-485 bus lines in an industrial environment?
RS-485 bus lines in industrial environments are exposed to ESD events up to IEC 61000-4-2 Level 4 (8 kV contact discharge) and cable surge transients. The LCDA12C-1.TCT's 13.3 V minimum breakdown voltage is compatible with RS-485 bus common-mode voltage ranges of -7 V to +12 V, clamping positive over-voltage events without conducting during normal differential signaling at 1.5 V to 5 V levels.
What lead-time consideration applies when sourcing the LCDA12C-1.TCT for a production run?
The LCDA12C-1.TCT carries a 13-week factory lead time, which is significantly longer than standard commodity TVS diodes available from stock. Design teams should place purchase orders at least 4 months before production start and evaluate buffer stock strategies, or qualify an alternative RoHS-compliant TO-253AA TVS diode with an equivalent 13.3 V breakdown voltage to avoid supply chain disruptions.
Related Guides
CL31A107MQHNNNE 1206 100 uF MLCC Selection Guide
How to choose CL31A107MQHNNNE and related 1206 MLCCs for low-voltage bulk capacitance and regulator stability.
Jul 2, 2026
CL05B103KB5NNNC 0402 10 nF X7R MLCC Selection Guide
How to choose CL05B103KB5NNNC and related 0402 MLCCs for bypassing, filtering, voltage derating, and sourcing.
Jul 2, 2026
ADAQ7768-1 Design Guide for Precision Vibration and Dynamic Signal Measurement
Design ADAQ7768-1 precision data acquisition channels for vibration and dynamic sensing with the right bandwidth, reference, clock, and layout choices.
Jun 30, 2026
AD5204BRZ10 Design Guide for SPI-Controlled Gain and Offset Calibration
Design AD5204BRZ10 digital potentiometer calibration loops with bounded trim span, safe wiper current, clean SPI routing, and reliable startup codes.
Jun 30, 2026
Why Buy from FindMyChip
About SEMTECH
SEMTECH is a leading electronic component manufacturer. FindMyChip sources SEMTECH ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 25+ | $1.9200 | $48.00 |
| 100+ | $1.5500 | $155.00 |
| 250+ | $0.9090 | $227.25 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.”