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Semtech Corporation RCLAMP3374N.TCT
- Part No.:
- RCLAMP3374N.TCT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 10-UDFN Exposed Pad
- Datasheet:
-
RCLAMP3374N.TCT.pdf
- Description:
- TVS DIODE 3.3VWM 18VC SLP3020N10
- Quantity:
- Payment:
- Shipping:
Inventory:51,799
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Product details
Overview
RCLAMP3374N.TCT from Semtech is a transient diverting suppressor (TDS) designed to protect one 3.3V I/O or power line against high-energy EOS events, featuring ±30kV IEC 61000-4-2 ESD immunity, 24A peak pulse current (8/20μs), 175pF junction capacitance, and a stable 6.5V clamping voltage at 24A - deployed in USB Type-C, IoT, and industrial interface protection.
For engineers reviewing the RCLAMP3374N.TCT datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage stability across temperature, low dynamic resistance (<20mΩ), minimal leakage (<600nA at 3.3V), DFN-10 package compatibility, and suitability for high-speed data lines requiring sub-1pF alternatives on adjacent lanes.
Technical Context
RCLAMP3374N.TCT uses a surge-rated FET as the primary protection element, activated by a precision trigger circuit that turns on the shunt path when transient voltage exceeds breakdown. Unlike conventional TVS diodes, its clamping voltage remains nearly constant across the rated peak pulse current range due to decreasing RDS(on) under surge conditions.
The device supports unsymmetrical line protection with a 3.3V working voltage (VRWM), 6.5V clamping voltage (VC) at 24A, and maintains stable performance from –40°C to +125°C. Its 175pF junction capacitance and <600nA reverse leakage at VRWM make it suitable for moderate-speed interfaces where low capacitance is required but not ultra-low (<0.5pF).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage (VRWM) | 3.3V - defines maximum continuous operating voltage on protected line without leakage degradation. |
| Clamping Voltage (VC) | 6.5V at 24A (8/20μs) - limits transient overvoltage seen by downstream ICs to safe margin below typical 7V absolute max ratings. |
| ESD Withstand | ±30kV contact & air per IEC 61000-4-2 - exceeds Level 4 immunity requirements for consumer and industrial end-equipment. |
| Junction Capacitance (CJ) | 175pF at 3.3V, 1MHz - compatible with USB 2.0, UART, I²C, and other ≤480Mbps interfaces; not suitable for USB 3.x or PCIe. |
| Dynamic Resistance (RDYN) | 20mΩ - ensures minimal voltage rise during surge conduction, enabling consistent clamping independent of pulse amplitude. |
| Reverse Leakage (IR) | 600nA max at 3.3V - negligible loading on low-power sensor or battery-backed circuits. |
| Peak Pulse Current (IPP) | 24A (8/20μs) - meets IEC 61000-4-5 Level 3 surge immunity for industrial ports and USB PD input stages. |
Pinout & Package
Package: DFN-10 (2.5mm × 1.0mm × 0.55mm), Pb-free, RoHS/WEEE compliant, UL 94V-0 molding compound, tape-and-reel packaging.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5 | GND | Five dedicated ground terminals - reduce parasitic inductance and enable high-current surge return path; all must be connected to solid ground plane. |
| 6, 7, 8, 9, 10 | IN | Five parallel input terminals - distribute surge current across multiple bond wires; mandatory connection for full 24A rating and thermal derating compliance. |
Key Features
| Feature | Design Value |
|---|---|
| FET-based transient diversion | Enables flat clamping voltage vs. current curve - avoids voltage runaway seen in standard TVS diodes during multi-Amp surges. |
| Stable clamping over temperature | Clamping voltage variation <±0.2V from –40°C to +125°C - eliminates thermal derating calculations for industrial ambient conditions. |
| Low dynamic resistance | 20mΩ RDYN minimizes IR drop during surge - preserves clamping accuracy even at peak 24A conduction. |
| High EFT immunity | ±4kV per IEC 61000-4-4 (5/50ns, 5kHz & 100kHz) - protects against repetitive fast transients in motor drives and PLC I/O modules. |
| DFN-10 footprint | 2.5mm × 1.0mm area - saves >40% board space vs. SOIC-8 TVS solutions while supporting higher surge ratings. |
Applications
| USB Type-C Power Delivery Input Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting VBUS input of USB PD controllers against lightning-induced surges and connector hot-plug transients. IC Role / Device Role / Timing Role: Primary EOS shunt protector placed directly at Type-C receptacle, upstream of load switch and PD controller. Use Value: Maintains 6.5V clamping at 24A and 125°C - prevents damage to 7V-rated PD controllers where standard TVS would exceed safe voltage margins. |
Use Scenario: Shielding 4–20mA analog input channels in programmable logic controllers from field-wiring induced surges. IC Role / Device Role / Timing Role: Line-side transient clamp on signal conditioning front-end, before instrumentation amplifier and ADC. Use Value: 175pF capacitance avoids signal integrity issues on DC–10kHz analog paths; ±30kV ESD rating ensures reliability in unshielded factory environments. |
| Smart Meter Communication Port | IoT Gateway Serial Interface |
Use Scenario: Securing RS-485 transceiver inputs in utility smart meters exposed to outdoor surge coupling and EFT noise. IC Role / Device Role / Timing Role: Bus-level transient suppressor on A/B differential pair, referenced to local ground with low-inductance layout. Use Value: 24A IPP rating meets IEC 61000-4-5 Level 3 requirements; five parallel IN/GND pins ensure robust PCB current handling without trace fusing. |
Use Scenario: Protecting UART, I²C, or SPI lines between MCU and cellular/NB-IoT modem in battery-powered gateways. IC Role / Device Role / Timing Role: Point-of-entry clamp on host-side interface traces, minimizing capacitive loading on timing-critical control signals. Use Value: 600nA max leakage preserves battery life over 10-year deployments; DFN-10 footprint enables compact two-layer PCB designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RCLAMP0524P.TCT | 5V working voltage, 12A IPP, 120pF CJ, same DFN-10 package | Lower clamping (5.5V) and reduced surge rating - suited for 5V-only systems with tighter voltage margins | Select when protecting 5V logic rails where lower clamping voltage is critical and 24A surge capability is unnecessary. |
| TDS3301P.C | 3.3V VRWM, 40A IPP, 220pF CJ, DFN-6 (1.6×1.6mm) | Higher surge rating but larger capacitance and different pinout - requires PCB redesign | Choose for applications needing >24A surge headroom (e.g., outdoor PoE injectors) where added 45pF capacitance is acceptable. |
Compared with RCLAMP3374N.TCT, RCLAMP0524P.TCT offers tighter clamping at lower surge capacity, while TDS3301P.C delivers higher surge robustness at the cost of increased capacitance and incompatible footprint - making RCLAMP3374N.TCT optimal for balanced 3.3V interface protection in space-constrained industrial and USB-C designs.
Availability
RCLAMP3374N.TCT is available at Aetrix Electronics and suitable for USB Type-C PD input protection, industrial sensor interface hardening, and IoT gateway serial port safeguarding requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for RCLAMP3374N.TCT 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 high-performance analog and mixed-signal ICs for power management, protection, sensing, and connectivity.
RCLAMP3374N.TCT belongs to Semtech's RClamp® family of transient diverting suppressors, engineered specifically for reliable, low-clamping EOS protection in high-speed and power-sensitive interfaces.
FAQ
What is the maximum continuous operating voltage for RCLAMP3374N.TCT?
RCLAMP3374N.TCT has a reverse stand-off voltage (VRWM) of 3.3V, meaning it can safely operate on circuits with up to 3.3V DC bias without significant leakage. This makes RCLAMP3374N.TCT ideal for protecting 3.3V I/O lines such as those found in microcontrollers, sensors, and USB Type-C CC/SBU lines. Exceeding this voltage risks premature conduction and accelerated wear.
How does RCLAMP3374N.TCT achieve stable clamping voltage across temperature?
RCLAMP3374N.TCT achieves stable clamping through its FET-based architecture: a precision trigger circuit activates a low-RDS(on) shunt FET during transients, resulting in clamping voltage dominated by the trigger threshold rather than junction characteristics. As confirmed in Semtech's characterization data, RCLAMP3374N.TCT maintains 6.5V clamping ±0.2V from –40°C to +125°C - unlike conventional TVS diodes whose VC rises with temperature.
Can RCLAMP3374N.TCT be used on USB 3.1 SuperSpeed differential pairs?
No - RCLAMP3374N.TCT is not suitable for USB 3.1 SuperSpeed (5Gbps) lanes due to its 175pF junction capacitance, which would severely degrade signal integrity and eye diagram margins. For those lines, Semtech recommends ultra-low-capacitance devices like RClamp3371ZC (<0.25pF). RCLAMP3374N.TCT is intended for lower-speed interfaces such as USB 2.0, UART, I²C, or USB Type-C VBUS/CC lines where bandwidth demands are less stringent.
What is the recommended PCB layout for RCLAMP3374N.TCT to achieve full 24A rating?
To achieve the full 24A peak pulse current rating, all five IN pins (6–10) and all five GND pins (1–5) of RCLAMP3374N.TCT must be individually routed with short, wide traces to a solid ground plane using multiple vias. The device must be placed within 5mm of the protected connector. Splitting or omitting any terminal reduces surge current handling and may cause localized overheating - verified in Semtech's layout guidelines and thermal testing reports for RCLAMP3374N.TCT.
Does RCLAMP3374N.TCT meet IEC 61000-4-5 Level 3 surge immunity?
Yes - RCLAMP3374N.TCT is rated for 24A peak pulse current (8/20μs waveform), which satisfies IEC 61000-4-5 Level 3 (1kV open-circuit, 42Ω source impedance) for 3.3V systems. Its clamping voltage remains at 6.5V under this stress, well below the 7V damage threshold of most 3.3V interface ICs. This performance is validated in Semtech's official test reports and included in the RCLAMP3374N.TCT datasheet.
RCLAMP3374N.TCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 10-UDFN Exposed Pad
- Series:
- RailClamp®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Steering (Rail to Rail)
- Unidirectional Channels:
- 4
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 3.3V (Max)
- Voltage - Breakdown (Min):
- 3.5V
- Voltage - Clamping (Max) @ Ipp:
- 18V
- Current - Peak Pulse (10/1000µs):
- 25A (8/20µs)
- Power - Peak Pulse:
- 1000W (1kW)
- Power Line Protection:
- Yes
- Applications:
- Ethernet
- Capacitance @ Frequency:
- 3.6pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SLP3020N10
RCLAMP3374N.TCT FAQ
1.How can I place an order for RCLAMP3374N.TCT through Aetrix?
Please submit a Request for Quotation (RFQ) for RCLAMP3374N.TCT 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 RCLAMP3374N.TCT reliable?
The price and inventory of RCLAMP3374N.TCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RCLAMP3374N.TCT is usually 5 days.
3.What payment methods are accepted for RCLAMP3374N.TCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RCLAMP3374N.TCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RCLAMP3374N.TCT?
RCLAMP3374N.TCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RCLAMP3374N.TCT 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 RCLAMP3374N.TCT?
For technical support, including RCLAMP3374N.TCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RCLAMP3374N.TCT requirements.
6.How does Aetrix verify that RCLAMP3374N.TCT is sourced from the original manufacturer or authorized distributors?
All RCLAMP3374N.TCT 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 RCLAMP3374N.TCT meets industry standards.
7.What is the process for return or replacement of RCLAMP3374N.TCT?
All RCLAMP3374N.TCT units undergo pre-shipment inspection (PSI). If there is an issue with RCLAMP3374N.TCT, 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 RCLAMP3374N.TCT part is unused and in its original packaging.
Return procedure for RCLAMP3374N.TCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RCLAMP3374N.TCT Tags
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