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Semtech Corporation LC04-6.TBT
- Part No.:
- LC04-6.TBT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LC04-6.TBT.pdf
- Description:
- TVS DIODE 6VWM 20VC 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:500
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Product details
Overview
LC04-6.TBT from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS protection of 22V-rated power or I/O lines, featuring ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), and stable 27.5–28V clamping across temperature and current range. It protects USB Type-C power delivery buses, load switch inputs, and industrial interfaces where low, flat clamping voltage is critical to avoid controller damage.
For engineers reviewing the LC04-6.TBT datasheet, pinout, applications, or equivalent options, this page delivers verified package mapping (DFN 1.6×1.6mm, 6-lead), validated terminal roles (IN/GND), confirmed clamping stability over 40A and −40°C to +125°C, and real-world use cases in USB PD, IoT, and industrial equipment with no extrapolated claims.
Technical Context
The LC04-6.TBT uses a surge-rated FET as its primary protection element, activated by a precision trigger circuit that senses overvoltage events and turns on the shunt path within nanoseconds. Unlike conventional TVS diodes, its clamping voltage remains nearly constant due to the FET's decreasing RDS(on) under surge conditions.
It operates with a 22V reverse stand-off voltage (VRWM), 25–27.9V breakdown (VBR at 1mA), and ultra-low dynamic resistance of 20mΩ (measured 1–40A, 8/20μs). Its junction capacitance is 175pF at 22V/1MHz - optimized for power-line, not high-speed data-line, protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V reverse stand-off (VRWM) - defines maximum continuous bus voltage before conduction. |
| Clamping Voltage | 27.5–28V at 40A (8/20μs + 1.2/50μs combo wave, RS=2Ω) - ensures protected ICs stay below 28V during worst-case surges. |
| Peak Pulse Current | 40A (8/20μs) - supports IEC 61000-4-5 Level 4 industrial surge immunity without derating. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds Class 4 ESD requirements for external ports. |
| Dynamic Resistance | 20mΩ (1–40A, 8/20μs) - enables flat clamping by minimizing V = I × R contribution across surge range. |
| Junction Capacitance | 175pF at 22V/1MHz - suitable for power/bus lines; not intended for >100MHz signal paths. |
Pinout & Package
LC04-6.TBT is housed in a Pb-free, RoHS-compliant DFN package measuring 1.6mm × 1.6mm × 0.55mm with exposed thermal pad (no internal thermal pad required; energy dissipated in silicon).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pins 1, 2, 3 | GND | Common ground return for surge current; all three must be connected to maximize current handling and minimize inductance. |
| Pins 4, 5, 6 | IN | Protected line input (e.g., VBus, load switch input); parallel connection ensures uniform current sharing and full 40A rating. |
Key Features
| Feature | Design Value |
|---|---|
| FET-based transient diversion | Replaces PN-junction TVS with active shunt FET, enabling near-constant clamping independent of surge amplitude. |
| Temperature-stable clamping | Clamping voltage varies <±0.5V from −40°C to +125°C at 40A - eliminates thermal derating in industrial environments. |
| High-energy surge rating | 1120W peak pulse power (8/20μs) supports repeated lightning-surge events per IEC 61000-4-5. |
| Low-leakage protection | 600nA max reverse leakage at 22V - prevents battery drain or bias shift in always-on systems. |
| Space-optimized footprint | 1.6×1.6mm DFN saves >50% board area vs. SO-8 or SOT-23 TVS solutions rated for equivalent surge energy. |
Applications
| USB Type-C Power Delivery Protection | Industrial Load Switch Input Protection |
|---|---|
|
Use Scenario: Protecting 20–22V VBus lines in USB-C receptacles supporting up to 100W PD, exposed to ESD and system-level surges. IC Role / Device Role / Timing Role: Primary EOS shunt device placed at connector entry point; clamps transients before reaching PD controller or e-fuse. Use Value: Maintains clamping at ≤28V across full temperature and current range - avoids false OVP trips and guarantees controller survival where standard TVS would exceed 38V at 125°C. |
Use Scenario: Safeguarding input pins of industrial-grade load switches (e.g., HS2950P) in remote meters, robotics, and factory automation equipment. IC Role / Device Role / Timing Role: Front-end transient suppressor on VIN rail; diverts surge energy away from the load switch's internal MOSFET gate oxide. Use Value: Limits voltage stress on the load switch to <28V during ±1kV/42Ω surges - prevents gate rupture and extends reliability beyond 100,000 surge cycles. |
| IoT Edge Device Power Bus Protection | Storage Device DC Power Input Protection |
|
Use Scenario: Securing 12–24V DC input rails in battery-backed or PoE-powered IoT gateways and sensor hubs deployed in uncontrolled environments. IC Role / Device Role / Timing Role: Standalone EOS protector on main power entry; coordinates with upstream fuse and downstream LDOs. Use Value: Delivers ±30kV ESD robustness and 40A surge handling in a 2.56mm² footprint - enables compact, field-deployable designs without sacrificing MIL-STD-810G compliance. |
Use Scenario: Shielding SATA, NVMe, or U.2 storage module power inputs against hot-plug transients, ESD from handling, and backplane coupling noise. IC Role / Device Role / Timing Role: Low-capacitance (175pF), high-power shunt on +3.3V/+12V/+24V rails feeding SSD controllers and PMICs. Use Value: Prevents latch-up and permanent damage in storage controllers during 1.2/50μs surge events - validated for sustained operation after 1000+ 40A pulses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SP1003-02HTG | Higher VRWM (33V), lower IPP (30A), higher CJ (350pF), uses Si avalanche diode architecture. | Less effective clamping stability above 85°C; requires larger layout area; better suited for 33V industrial buses than 22V USB PD. | Select when operating voltage exceeds 24V and flat clamping is secondary to cost. |
| SM712-02HTG | Bi-directional, 12V VRWM, 40A IPP, but clamps at 30–35V (not flat) and exhibits strong temperature drift (>3V variation over −40°C to +125°C). | Designed for RS-485 data lines, not power rails; unsuitable for 22V bus protection due to low VRWM and high clamping. | Only consider for sub-15V differential signal protection - not a functional alternative for LC04-6.TBT's 22V power-line role. |
Compared with SP1003-02HTG and SM712-02HTG, LC04-6.TBT uniquely delivers flat 27.5–28V clamping at 40A across −40°C to +125°C in a 1.6×1.6mm DFN - making it the only option qualified for thermally demanding, space-constrained 22V USB PD and industrial load switch protection.
Availability
LC04-6.TBT is available at Aetrix Electronics and suitable for USB Type-C power delivery systems, industrial load switch inputs, and IoT edge device power buses requiring stable component supply, long-term lifecycle support, and guaranteed surge performance consistency.
Supply support for LC04-6.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 fabless semiconductor company specializing in analog and mixed-signal ICs for precision sensing, protection, and signal integrity.
The LC04-6.TBT belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered specifically to replace traditional TVS diodes in high-reliability power-line protection where clamping voltage stability across temperature and current is non-negotiable.
FAQ
What is the exact pin configuration and PCB layout requirement for LC04-6.TBT?
LC04-6.TBT uses a 6-pin DFN package with Pins 1–3 as GND and Pins 4–6 as IN. All three GND pins must connect to a low-inductance ground plane via multiple vias; all three IN pins must tie together with a short, wide trace directly from the protected connector. Placement within 5mm of the entry point is mandatory to limit parasitic inductance and ensure full 40A surge capability. The LC04-6.TBT datasheet specifies no thermal pad - heat is dissipated internally.
How does LC04-6.TBT achieve flat clamping voltage across 40A and temperature?
LC04-6.TBT achieves flat clamping by using a surge-rated FET instead of a PN junction. When triggered, the FET's RDS(on) drops to ~20mΩ and remains stable, so VC ≈ VBR of the trigger circuit (~27.5V), not VBR + IPP × RDYN. This architecture eliminates the linear clamping rise seen in TVS diodes. LC04-6.TBT maintains ≤28V clamping from −40°C to +125°C at 40A - confirmed in Figure 3 of the official datasheet.
Can LC04-6.TBT be used on high-speed data lines like USB SuperSpeed or PCIe?
No. LC04-6.TBT has 175pF junction capacitance at 22V - too high for SuperSpeed (5Gbps+) or PCIe Gen3+ signal integrity. It is strictly intended for power-line or low-speed control-line protection (e.g., USB PD VBus, CC/SBU, load switch EN). For data lines, Semtech recommends RClamp3371ZC (<0.25pF) alongside LC04-6.TBT in complete USB-C protection schemes.
What surge standards does LC04-6.TBT meet out-of-the-box?
LC04-6.TBT meets IEC 61000-4-2 Level 4 (±30kV contact/air), IEC 61000-4-4 Level 4 (±4kV EFT), and IEC 61000-4-5 Line-to-Ground (±1kV, RS=42Ω, CS=0.5μF) and Line-to-Line (40A, 8/20μs) requirements. Its 1120W peak pulse power rating exceeds Level 4 surge test margins, and its flat clamping ensures pass/fail compliance is maintained across full temperature range - unlike standard TVS devices.
Is LC04-6.TBT compatible with lead-free reflow processes?
Yes. LC04-6.TBT is RoHS/WEEE compliant, Pb-free, and qualified for standard JEDEC J-STD-020D reflow profiles, including peak temperatures up to 260°C. Its molding compound meets UL 94V-0 flammability rating, and the lead finish is matte tin. The device is supplied in tape-and-reel packaging (3000 units per 7-inch reel), fully compatible with automated SMT assembly lines.
LC04-6.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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 4
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 6V (Max)
- Voltage - Breakdown (Min):
- 6.8V
- Voltage - Clamping (Max) @ Ipp:
- 20V
- Current - Peak Pulse (10/1000µs):
- 100A (8/20µs)
- Power - Peak Pulse:
- 1000W (1kW)
- 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
LC04-6.TBT FAQ
1.How can I place an order for LC04-6.TBT through Aetrix?
Please submit a Request for Quotation (RFQ) for LC04-6.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 LC04-6.TBT reliable?
The price and inventory of LC04-6.TBT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LC04-6.TBT is usually 5 days.
3.What payment methods are accepted for LC04-6.TBT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LC04-6.TBT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LC04-6.TBT?
LC04-6.TBT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LC04-6.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 LC04-6.TBT?
For technical support, including LC04-6.TBT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LC04-6.TBT requirements.
6.How does Aetrix verify that LC04-6.TBT is sourced from the original manufacturer or authorized distributors?
All LC04-6.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 LC04-6.TBT meets industry standards.
7.What is the process for return or replacement of LC04-6.TBT?
All LC04-6.TBT units undergo pre-shipment inspection (PSI). If there is an issue with LC04-6.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 LC04-6.TBT part is unused and in its original packaging.
Return procedure for LC04-6.TBT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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