My Inquiry
My Account
Semtech Corporation LC04-12.TBT
- Part No.:
- LC04-12.TBT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LC04-12.TBT.pdf
- Description:
- TVS DIODE 12VWM 24VC 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,437
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LC04-12.TBT from Semtech is a transient diverting suppressor designed for high-energy EOS protection on 22V-rated power or I/O lines, featuring ±30kV IEC 61000-4-2 ESD immunity, 40A (8/20μs) peak pulse current handling, and stable 27.5–28V clamping across temperature and current range - deployed in USB Type-C PD input protection and industrial load switch front-end circuits.
For engineers reviewing the LC04-12.TBT datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage stability under surge, low dynamic resistance (<20 mΩ), junction capacitance (175 pF at 22V), DFN 1.6×1.6mm package constraints, and compatibility with 22V bus architectures requiring robust EOS resilience.
Technical Context
The LC04-12.TBT uses a surge-rated FET as its primary protection element, activated by a precision trigger circuit when transient voltage exceeds breakdown threshold - enabling near-constant clamping voltage independent of peak pulse current magnitude. Its operation differs fundamentally from conventional TVS diodes by eliminating linear VC = VBR + IPP × RDYN dependence.
Clamping remains stable from –40°C to +125°C due to FET-based shunting with negligible RDS(on) variation; dynamic resistance is measured between 1A and 40A (8/20μs), and device behavior is validated per IEC 61000-4-2, -4-4, and -4-5 standards for ESD, EFT, and surge immunity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22 V - supports nominal USB PD 20V bus with 2V margin before clamping activation. |
| Clamping Voltage | 27.5–28 V at 24–40A (1.2/50μs + 8/20μs combo wave, RS = 2Ω) - ensures protected ICs remain below 30V damage threshold across full surge range. |
| Peak Pulse Current | 40 A (tp = 8/20μs) - meets IEC 61000-4-5 Level 4 industrial surge requirements for 22V systems. |
| ESD Withstand | ±30 kV contact & air (IEC 61000-4-2) - eliminates need for secondary ESD staging in compact USB-C interfaces. |
| Junction Capacitance | 175 pF at VR = 22V, f = 1 MHz - compatible with DC-coupled 22V power rails; not suitable for high-speed data lines. |
| Dynamic Resistance | 20 mΩ (8/20μs, 1–40A range) - enables low-voltage-drop shunting that minimizes energy dissipation in protected FETs or controllers. |
Pinout & Package
LC04-12.TBT is housed in a RoHS-compliant DFN 1.6 mm × 1.6 mm × 0.55 mm 6-lead package with exposed thermal pad (no internal thermal pad required; energy dissipated in silicon). All pins must be connected: three GND pins (1–3) and three IN pins (4–6) are paralleled internally to maximize surge current sharing and minimize parasitic inductance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return path for surge current; all three must be soldered to solid ground plane with multiple vias to reduce inductance. |
| 4, 5, 6 | IN | Parallel-connected input terminals for protected line (e.g., VBUS); connection to connector must be shortest possible trace to limit coupling. |
Key Features
| Feature | Design Value |
|---|---|
| FET-based transient shunting | Replaces conventional TVS with active switching: clamping voltage stays flat across 1–40A and –40°C to +125°C. |
| Low dynamic resistance | 20 mΩ enables <1V IR drop at 40A, reducing stress on downstream load switches and e-fuses during surge events. |
| High-energy ESD rating | ±30 kV contact/air withstand allows single-device protection without cascaded stages in space-constrained USB-C designs. |
| Stable capacitance | 175 pF at 22V with minimal voltage/temperature drift - predictable filtering behavior on 22V DC rails. |
Applications
| USB Type-C Power Delivery Input Protection | Industrial Load Switch Front-End Protection |
|---|---|
Use Scenario: Protecting VBUS line in USB-C receptacles supporting up to 20V/5A PD negotiation against lightning-induced surges and connector hot-plug transients. IC Role / Device Role / Timing Role: Primary EOS shunt device placed directly at connector, clamping transients before they reach PD controller or buck converter input. Use Value: Maintains 27.5–28V clamping across 40A surge and full temperature range - prevents overvoltage damage to 30V-rated PD controllers without derating. |
Use Scenario: Front-end protection for HS2950P-type load switches in remote meters, robotics, and IoT gateways exposed to field-installed wiring surges. IC Role / Device Role / Timing Role: Surge diverter placed between input source and load switch VIN pin to limit voltage stress on internal FET gate oxide. Use Value: Clamps to ≤28V during ±1kV/42Ω surge, keeping load switch drain-source voltage within safe operating area and avoiding latch-up. |
| 22V Industrial Power Rail Protection | Notebook/Tablet DC Input Protection |
Use Scenario: Safeguarding 22V intermediate bus in programmable logic controllers (PLCs), motor drives, and factory automation equipment. IC Role / Device Role / Timing Role: Standalone transient suppressor on main DC input rail, coordinated with upstream fuse and downstream DC-DC converters. Use Value: Delivers 1120W peak pulse power handling (8/20μs) while maintaining sub-30V clamping - avoids brownout or reset during surge recovery. |
Use Scenario: Input protection for 20V-class notebook/tablet battery charging circuits and USB-C port multiplexers. IC Role / Device Role / Timing Role: First-line defense against ESD from user interface and induced surges from AC adapter cables. Use Value: ±30kV ESD rating and stable clamping eliminate need for additional TVS arrays, saving board space and BOM count in thin-form-factor designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDS2211P | Identical electrical specs, same DFN 1.6×1.6mm package, identical pinout and marking - direct replacement with no layout change. | Same use cases: USB-C PD, load switch input, 22V rail protection. | Preferred for new designs requiring latest Semtech revision (Rev 2.5) and full documentation traceability. |
| uClamp2411ZA | 24V working voltage, lower 24A peak pulse rating, higher 33V clamping, smaller 0.6×0.6mm 2-pin DFN package. | Better suited for CC/SBU lines in USB-C; insufficient for 40A VBUS-level surge protection. | Select only for auxiliary signal lines where 22V+ headroom and 40A capability are unnecessary. |
Compared with TDS2211P, LC04-12.TBT offers identical performance and footprint - making it a seamless drop-in option with updated manufacturing traceability; versus uClamp2411ZA, LC04-12.TBT provides 67% higher surge current rating and 5V lower clamping, essential for primary power rail protection.
Availability
LC04-12.TBT is available at Aetrix Electronics and suitable for USB Type-C PD implementations, industrial load switch front-end protection, and 22V intermediate bus applications requiring stable component supply, long-term lifecycle support, and consistent surge performance across temperature extremes.
Supply support for LC04-12.TBT 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
Semtech Corporation is a U.S.-based semiconductor company specializing in analog and mixed-signal ICs for precision sensing, protection, and signal integrity applications.
The LC04-12.TBT belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered to replace conventional TVS diodes in high-reliability 22V power and interface protection where flat clamping and temperature stability are critical.
FAQ
What is the maximum clamping voltage of LC04-12.TBT at 40A surge current?
The LC04-12.TBT clamps to 27.6–28 V at 40A (1.2/50μs voltage + 8/20μs current combination waveform, RS = 2Ω), as specified in the Electrical Characteristics table. This value remains stable across –40°C to +125°C operating temperature, distinguishing it from conventional TVS devices whose clamping rises with current and temperature. The LC04-12.TBT achieves this via FET-based shunting with ultra-low dynamic resistance.
Is LC04-12.TBT pin-compatible with TDS2211P?
Yes, LC04-12.TBT is pin-compatible with TDS2211P: both use the same DFN 1.6 mm × 1.6 mm × 0.55 mm 6-lead package with identical pin 1 location, pin numbering (GND on 1–3, IN on 4–6), and land pattern. No PCB changes are required when substituting LC04-12.TBT for TDS2211P in existing layouts.
Can LC04-12.TBT be used on high-speed data lines like USB SuperSpeed or PCIe?
No, LC04-12.TBT is not suitable for high-speed data lines. Its 175 pF junction capacitance at 22V would severely degrade signal integrity on >100 MHz interfaces. It is intended exclusively for DC or low-frequency power and control lines - such as USB-C VBUS, load switch inputs, or 22V industrial rails - where capacitance is non-critical.
What ESD standard does LC04-12.TBT meet, and at what level?
LC04-12.TBT meets IEC 61000-4-2 with ±30 kV contact discharge and ±30 kV air discharge ratings - among the highest ESD withstand levels available for monolithic suppressors. This enables single-stage protection in USB-C connectors and industrial HMI ports without external spark gaps or multi-stage networks.
Does LC04-12.TBT require a thermal pad or heatsink on the PCB?
No, LC04-12.TBT does not require a thermal pad or external heatsink. Unlike TVS diodes that dissipate surge energy in the PN junction, LC04-12.TBT channels energy through a low-RDS(on) FET, minimizing localized heating. The datasheet explicitly states "no thermal pad is needed," and the DFN package relies on copper pour and vias to ground for thermal and electrical performance.
LC04-12.TBT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 4
- Voltage - Reverse Standoff (Typ):
- 12V (Max)
- Voltage - Breakdown (Min):
- 13.3V
- Voltage - Clamping (Max) @ Ipp:
- 24V
- Current - Peak Pulse (10/1000µs):
- 25A (8/20µs)
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- 15pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SO
LC04-12.TBT FAQ
1.How can I place an order for LC04-12.TBT through Aetrix?
Please submit a Request for Quotation (RFQ) for LC04-12.TBT 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 LC04-12.TBT reliable?
The price and inventory of LC04-12.TBT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LC04-12.TBT is usually 5 days.
3.What payment methods are accepted for LC04-12.TBT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LC04-12.TBT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LC04-12.TBT?
LC04-12.TBT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LC04-12.TBT 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 LC04-12.TBT?
For technical support, including LC04-12.TBT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LC04-12.TBT requirements.
6.How does Aetrix verify that LC04-12.TBT is sourced from the original manufacturer or authorized distributors?
All LC04-12.TBT 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 LC04-12.TBT meets industry standards.
7.What is the process for return or replacement of LC04-12.TBT?
All LC04-12.TBT units undergo pre-shipment inspection (PSI). If there is an issue with LC04-12.TBT, 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 LC04-12.TBT part is unused and in its original packaging.
Return procedure for LC04-12.TBT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LC04-12.TBT 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 …
