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Semtech Corporation RCLAMP2504P.TCT
- Part No.:
- RCLAMP2504P.TCT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 6-UFDFN Exposed Pad
- Datasheet:
-
RCLAMP2504P.TCT.pdf
- Description:
- TVS DIODE 2.5VWM 13VC SLP1616P6
- Quantity:
- Payment:
- Shipping:
Inventory:11,329
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Product details
Overview
RCLAMP2504P.TCT from Semtech is a transient diverting suppressor IC designed for high-energy EOS/ESD protection of 25V-rated data or power lines in USB Type-C, USB PD, and industrial interfaces. It delivers ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), constant 28V clamping voltage up to 40A, 175pF junction capacitance at 22V, and operates from –40°C to +125°C in a DFN-6 package.
For engineers reviewing the RCLAMP2504P.TCT datasheet, pinout, applications, or equivalent options, key selection criteria include clamping stability across temperature and current, low dynamic resistance (20mΩ), minimal leakage (<600nA at 22V), and compatibility with high-speed bus protection where low capacitance and predictable voltage limiting are critical.
Technical Context
The RCLAMP2504P.TCT uses a surge-rated FET as its 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-27.5–28V across 24–40A and –40°C to +125°C-due to decreasing RDS(on) under surge conditions.
It features three parallel input terminals (pins 4–6) and three ground terminals (pins 1–3) to maximize surge current handling and minimize parasitic inductance. The device is optimized for unsymmetrical line protection and meets IEC 61000-4-4 (±4kV EFT) and IEC 61000-4-5 (±1kV, 1.2/50μs) standards with 2Ω source impedance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 25 V - Maximum continuous DC operating voltage on protected line without triggering |
| Clamping Voltage | 28 V @ 40A (8/20μs) - Limits transient voltage to safe level for downstream 25V-rated ICs like USB PD controllers |
| ESD Withstand | ±30 kV contact & air (IEC 61000-4-2) - Survives direct human-body ESD events without degradation |
| Peak Pulse Current | 40 A (8/20μs) - Handles high-energy surges per IEC 61000-4-5, e.g., lightning-induced transients |
| Junction Capacitance | 175 pF @ 22 V, 1 MHz - Low enough for USB 2.0 signal integrity; not suitable for USB 3.x superspeed lanes |
| Dynamic Resistance | 20 mΩ - Enables flat clamping curve; reduces voltage rise under increasing surge current |
| Leakage Current | <600 nA @ 22 V - Negligible standby power loss and signal distortion on active lines |
Pinout & Package
Package: DFN-6, 1.6 mm × 1.6 mm × 0.55 mm, RoHS-compliant, UL 94V-0 molding compound, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pins 1, 2, 3 | Ground (GND) | Three dedicated low-inductance ground paths; all must be connected to maximize surge current dissipation and thermal performance |
| Pins 4, 5, 6 | Input (IN) | Parallel-connected high-current input terminals for protected bus; enables uniform current sharing and reduced trace inductance |
Key Features
| Feature | Design Value |
|---|---|
| Constant clamping voltage | 27.5–28 V across full 24–40A surge range and –40°C to +125°C - Ensures consistent protection margin for 25V systems regardless of ambient or surge magnitude |
| FET-based shunt architecture | Surge-rated MOSFET + precision trigger circuit - Eliminates voltage-dependent clamping drift inherent in PN-junction TVS devices |
| Low dynamic resistance | 20 mΩ - Minimizes IR drop during surge, enabling tighter clamping than standard TVS diodes with fixed RDYN |
| High EFT immunity | ±4 kV (5/50 ns, 100 kHz & 5 kHz, IEC 61000-4-4) - Robust against repetitive fast transients common in industrial motor drives and switching power supplies |
Applications
| USB Type-C Power Delivery Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting VBUS lines in USB Type-C ports supporting up to 20V PD negotiation and 25V fault tolerance. IC Role / Device Role / Timing Role: Transient diverting suppressor placed directly at connector to clamp EOS/ESD before reaching PD controller or load switch. Use Value: Maintains 28V clamping at 40A and 125°C-well below 30V damage threshold of common PD controllers-enabling reliable operation without over-spec'ing surge rating. | Use Scenario: Safeguarding input pins of industrial-grade load switches (e.g., HS2950P) exposed to lightning-induced surges in remote meters or robotics. IC Role / Device Role / Timing Role: Primary front-end protector that diverts >95% of transient energy to ground before it reaches the switch's internal FET. Use Value: Prevents gate oxide damage and latch-up in load switches by holding clamping voltage below their absolute maximum VDS rating under worst-case surge and temperature conditions. |
| IoT Device Power Bus Protection | Storage Device Interface Protection |
Use Scenario: Securing 25V-rated power rails in battery-powered IoT gateways subjected to ESD during field servicing or connector mating. IC Role / Device Role / Timing Role: Standalone EOS suppressor on main supply rail, coordinated with low-capacitance TVS on signal lines. Use Value: Delivers ±30kV ESD robustness with sub-μA leakage-preserving battery life while ensuring system-level IEC 61000-4-2 compliance. | Use Scenario: Protecting SATA or eMMC power lines in ruggedized storage modules deployed in factory automation equipment. IC Role / Device Role / Timing Role: High-energy transient limiter on 3.3V/12V/25V supply inputs to prevent latch-up or burnout in flash controllers. Use Value: 40A surge capability and stable 28V clamping meet EN 61000-4-5 Level 4 requirements for industrial environments without requiring external current-sharing components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDS2211P | 22V working voltage, identical 6-pin DFN package, same FET-based architecture and 40A rating | Optimized for 22V systems (e.g., legacy USB PD 3.0); lower clamping (27.5V) but narrower voltage margin vs. 25V rails | Select when protecting 22V nominal buses where tighter clamping headroom is prioritized over voltage scalability |
| uClamp2511P.TCT | Same 25V working voltage and 40A rating, but uses silicon avalanche diode architecture instead of FET shunt | Higher clamping voltage (~35V at 40A) and greater temperature sensitivity; higher capacitance (220pF) | Choose only if cost sensitivity outweighs clamping stability and low-capacitance requirements |
Compared with TDS2211P and uClamp2511P.TCT, RCLAMP2504P.TCT provides superior clamping consistency across temperature and current-critical for 25V industrial and USB PD designs where margin to IC absolute maximum ratings is constrained-and avoids the capacitance penalty of diode-based alternatives.
Availability
RCLAMP2504P.TCT is available at Aetrix Electronics and suitable for USB Type-C power delivery, industrial load switch protection, and IoT device power bus applications requiring stable component supply, long-term lifecycle support, and guaranteed RoHS/WEEE compliance.
Supply support for RCLAMP2504P.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 analog and mixed-signal ICs for precision sensing, protection, and signal integrity.
The RCLAMP2504P.TCT belongs to Semtech's Transient Diverting Suppressor (TDS) family, engineered to replace conventional TVS diodes in high-reliability 25V industrial and interface protection applications where clamping stability and low dynamic resistance are essential.
FAQ
What is the maximum continuous operating voltage for RCLAMP2504P.TCT?
The RCLAMP2504P.TCT has a reverse stand-off voltage (VRWM) of 25 V, meaning it can continuously withstand up to 25 V DC on its input terminals without entering conduction. This makes it suitable for protecting 24V industrial buses and USB PD VBUS lines operating up to 20V nominal with 25V fault tolerance. Exceeding 25 V risks premature triggering or degradation.
How does RCLAMP2504P.TCT achieve constant clamping voltage across varying surge currents?
RCLAMP2504P.TCT achieves constant clamping via a surge-rated FET shunt architecture. When triggered, the FET's RDS(on) decreases as surge current increases, counteracting the typical V = I × R rise. This results in stable 27.5–28 V clamping from 24A to 40A (8/20μs), unlike TVS diodes whose clamping rises linearly with current due to fixed dynamic resistance.
Can RCLAMP2504P.TCT be used on high-speed data lines like USB 3.2 or PCIe?
No, RCLAMP2504P.TCT is not suitable for USB 3.2 or PCIe data lanes. Its 175 pF junction capacitance at 22 V introduces excessive signal attenuation and jitter on multi-Gbps differential pairs. It is intended for power or low-speed control lines (e.g., VBUS, CC, SBU, load switch enable). For superspeed lanes, Semtech recommends RClamp3371ZC (<0.25 pF).
What PCB layout practices are required to ensure full 40A surge performance of RCLAMP2504P.TCT?
To achieve rated 40A performance, all three GND pins (1–3) and all three IN pins (4–6) must be connected with short, wide copper traces. Place RCLAMP2504P.TCT within 5 mm of the protected connector. Use ≥4 vias per GND pin to a solid ground plane, and avoid thermal relief on GND pads. Split or unconnected pins will reduce surge current handling and increase clamping voltage.
Does RCLAMP2504P.TCT require external biasing or control signals to operate?
No, RCLAMP2504P.TCT is a fully passive, self-triggering device. It contains an integrated precision trigger circuit and drive logic that automatically activates the internal shunt FET when transient voltage exceeds its breakdown threshold. No external power, enable signals, or configuration are needed-simply connect pins 1–3 to ground and pins 4–6 to the line being protected.
RCLAMP2504P.TCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 6-UFDFN 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):
- 2.5V (Max)
- Voltage - Breakdown (Min):
- 2.7V
- Voltage - Clamping (Max) @ Ipp:
- 13V
- Current - Peak Pulse (10/1000µs):
- 5A (8/20µs)
- Power - Peak Pulse:
- 80W
- Power Line Protection:
- Yes
- Applications:
- Multimedia Card Interface
- Capacitance @ Frequency:
- 0.8pF @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SLP1616P6 (1.6x1.6)
RCLAMP2504P.TCT FAQ
1.How can I place an order for RCLAMP2504P.TCT through Aetrix?
Please submit a Request for Quotation (RFQ) for RCLAMP2504P.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 RCLAMP2504P.TCT reliable?
The price and inventory of RCLAMP2504P.TCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RCLAMP2504P.TCT is usually 5 days.
3.What payment methods are accepted for RCLAMP2504P.TCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RCLAMP2504P.TCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RCLAMP2504P.TCT?
RCLAMP2504P.TCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RCLAMP2504P.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 RCLAMP2504P.TCT?
For technical support, including RCLAMP2504P.TCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RCLAMP2504P.TCT requirements.
6.How does Aetrix verify that RCLAMP2504P.TCT is sourced from the original manufacturer or authorized distributors?
All RCLAMP2504P.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 RCLAMP2504P.TCT meets industry standards.
7.What is the process for return or replacement of RCLAMP2504P.TCT?
All RCLAMP2504P.TCT units undergo pre-shipment inspection (PSI). If there is an issue with RCLAMP2504P.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 RCLAMP2504P.TCT part is unused and in its original packaging.
Return procedure for RCLAMP2504P.TCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RCLAMP2504P.TCT Tags
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