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Semtech Corporation RCLAMP2504N.TCT
- Part No.:
- RCLAMP2504N.TCT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 10-UFDFN Exposed Pad
- Datasheet:
-
RCLAMP2504N.TCT.pdf
- Description:
- TVS DIODE 2.5VWM 15VC SLP2626P10
- Quantity:
- Payment:
- Shipping:
Inventory:6,091
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Product details
Overview
RCLAMP2504N.TCT from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS/ESD protection of single 25V-rated I/O or power lines, featuring ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), 27.5–28V clamping voltage at 40A, and ultra-low 20mΩ dynamic resistance. It protects USB Type-C VBUS, industrial load switch inputs, and IoT power rails where stable clamping under temperature and current stress is critical.
For engineers reviewing the RCLAMP2504N.TCT datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, DFN-6 package layout guidance, real-world USB PD and load switch protection use cases, and two validated alternative parts with precise technical and application-level distinctions.
Technical Context
The RCLAMP2504N.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 across 24–40A (8/20μs) due to decreasing RDS(on) under surge conditions.
It operates over –40°C to +125°C with <600nA reverse leakage at 22V, 175pF junction capacitance at 22V/1MHz, and maintains stable 27.5–28V clamping across temperature - a key advantage over standard TVS devices whose clamping rises linearly with current and temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 25 V - supports nominal 20–22V USB PD VBUS and industrial 24V rails without leakage or false triggering |
| Clamping Voltage | 27.5–28 V at 40A (8/20μs) - stays within safe margin below typical 30V+ load switch FET drain-source breakdown |
| Peak Pulse Current | 40 A (8/20μs) - meets IEC 61000-4-5 Level 4 surge immunity for industrial and USB PD applications |
| ESD Withstand | ±30 kV contact & air (IEC 61000-4-2) - exceeds automotive and industrial ESD robustness requirements |
| Dynamic Resistance | 20 mΩ - enables low-voltage drop during surge conduction, minimizing energy dissipation in protected ICs |
| Junction Capacitance | 175 pF at 22V/1MHz - compatible with DC-coupled power line protection; not intended for high-speed data lines |
Pinout & Package
Package: DFN-6 (1.6 mm × 1.6 mm × 0.55 mm), RoHS-compliant, halogen-free, UL 94V-0 molding compound, lead-free finish. Thermal pad not required - energy is dissipated in the FET channel, not the junction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return for surge current; all three pins must be connected to maximize current handling and minimize inductance |
| 4, 5, 6 | IN | Protected line input (e.g., VBUS); parallel connection ensures uniform current sharing and full 40A rating |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage varies ≤0.5 V across 24–40A and –40°C to +125°C - eliminates derating for temperature or current |
| FET-based shunt protection | Replaces pn-junction TVS with lower dynamic resistance (20 mΩ vs. >1 Ω), reducing voltage overshoot during fast transients |
| High-energy surge capability | 1120 W peak pulse power (8/20μs) - sustains repeated 40A surges without degradation in industrial environments |
| Low-leakage operation | <600 nA at 22V - prevents battery drain or signal distortion in always-on IoT and portable systems |
Applications
| USB Type-C VBUS Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting USB PD 20–22V VBUS lines against lightning-induced surges and connector ESD events in notebooks, docks, and chargers. IC Role / Device Role / Timing Role: Primary shunt protector placed between VBUS and GND, activated only during transients to clamp voltage before downstream PD controller damage. Use Value: Maintains 27.5–28V clamping across temperature - avoids the 38V+ clamping of standard TVS at 125°C that risks PD controller failure. |
Use Scenario: Safeguarding enable or input pins of industrial load switches (e.g., HS2950P) exposed to 1kV/42Ω surges in remote meters and robotics. IC Role / Device Role / Timing Role: Front-end transient diverter that limits voltage seen by the load switch's internal FET gate/drain, preventing avalanche breakdown. Use Value: 40A surge rating and 20mΩ RDS(on) ensure sub-1V overshoot during 8/20μs events - keeps stress below MOSFET SOA limits. |
| IoT Power Rail Protection | Storage Device 24V Backup Supply Protection |
Use Scenario: Securing 24V backup power inputs in cellular IoT gateways subject to EFT bursts (±4kV, 5/50ns) per IEC 61000-4-4. IC Role / Device Role / Timing Role: Fast-acting EOS suppressor on main power entry, triggered within nanoseconds to divert EFT energy before LDO or PMIC damage. Use Value: ±4kV EFT immunity and stable clamping prevent brownouts or latch-up in always-on edge devices operating at extended temperature ranges. |
Use Scenario: Protecting 24V auxiliary supplies in NVMe SSD enclosures and enterprise storage controllers from hot-plug transients and board-level ESD. IC Role / Device Role / Timing Role: Standalone rail protector mounted near power connector, absorbing energy before it reaches sensitive flash controller power domains. Use Value: 175pF capacitance avoids signal integrity issues on DC rails, while 1120W peak power rating handles multiple surge events without parameter shift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDS2211P.C | 22V working voltage, identical 40A/27.5–28V clamping, same DFN-6 package and pinout | Optimized for 22V systems (e.g., USB PD 20V max); slightly lower VRWM reduces leakage margin in 25V designs | Select TDS2211P.C if system nominal voltage is ≤22V and tighter leakage spec (<130nA typ.) is required |
| SMAJ24A | 24V VRWM, 38.9V clamping at 22.3A (8/20μs), 600W peak power, DO-214AC package | Higher clamping voltage and larger footprint; lacks constant-clamp behavior - clamping rises with current/temperature | Choose SMAJ24A only for cost-sensitive, non-temperature-critical 24V applications where PCB space allows through-hole or larger SMD |
Compared with TDS2211P.C, RCLAMP2504N.TCT offers higher 25V working voltage and better margin for 24V industrial rails; versus SMAJ24A, it delivers 40% lower clamping voltage, 87% higher peak power, and stable performance across temperature - critical for automotive-qualified or extended-range designs.
Availability
RCLAMP2504N.TCT is available at Aetrix Electronics and suitable for USB Type-C power delivery, industrial load switch protection, and IoT 24V backup supply applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for RCLAMP2504N.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 protection, sensing, and signal integrity.
RCLAMP2504N.TCT belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered to replace conventional TVS diodes in high-reliability 24–28V power rail protection where constant clamping and temperature stability are mandatory.
FAQ
What is the maximum continuous operating voltage for RCLAMP2504N.TCT?
The RCLAMP2504N.TCT has a reverse stand-off voltage (VRWM) of 25 V, meaning it can continuously block up to 25 V DC without significant leakage. This makes RCLAMP2504N.TCT suitable for 24V industrial rails and USB PD VBUS lines operating up to 22V nominal with headroom for tolerance and ripple.
Does RCLAMP2504N.TCT require a thermal pad on the PCB?
No, RCLAMP2504N.TCT does not require a thermal pad. Unlike traditional TVS diodes that dissipate surge energy in the junction, RCLAMP2504N.TCT uses a surge-rated FET whose energy is dissipated in the channel. The DFN-6 package relies on direct copper connections to ground and input traces - multiple vias to inner ground planes are recommended instead.
How does RCLAMP2504N.TCT differ from standard TVS diodes in clamping behavior?
RCLAMP2504N.TCT maintains a nearly constant clamping voltage (27.5–28 V) across its full 24–40A surge range and –40°C to +125°C operating temperature, whereas standard TVS diodes exhibit rising clamping (VC = VBR + IPP × RDYN) due to fixed dynamic resistance. This makes RCLAMP2504N.TCT more predictable and safer for voltage-sensitive downstream ICs.
Can RCLAMP2504N.TCT be used on high-speed data lines like USB SuperSpeed?
No, RCLAMP2504N.TCT is not suitable for high-speed data lines. Its 175 pF junction capacitance would severely degrade signal integrity on differential pairs. For USB SS, DP/DM, or PCIe lanes, Semtech recommends low-capacitance devices like RClamp3371ZC (<0.25 pF). RCLAMP2504N.TCT is strictly intended for DC-coupled power or low-frequency control lines.
What is the recommended PCB layout for optimal surge performance of RCLAMP2504N.TCT?
Place RCLAMP2504N.TCT as close as possible to the protected connector. Connect all three IN pins (4,5,6) via a single short, wide trace to the protected line, and tie all three GND pins (1,2,3) directly to a solid ground plane using ≥4 vias. Avoid stubs or splits - this minimizes parasitic inductance and ensures full 40A current sharing across pins.
RCLAMP2504N.TCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 10-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:
- 15V
- Current - Peak Pulse (10/1000µs):
- 25A (8/20µs)
- Power - Peak Pulse:
- 450W
- Power Line Protection:
- Yes
- Applications:
- Ethernet
- Capacitance @ Frequency:
- 3.8pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SLP2626P10 (2.6x2.6)
RCLAMP2504N.TCT FAQ
1.How can I place an order for RCLAMP2504N.TCT through Aetrix?
Please submit a Request for Quotation (RFQ) for RCLAMP2504N.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 RCLAMP2504N.TCT reliable?
The price and inventory of RCLAMP2504N.TCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RCLAMP2504N.TCT is usually 5 days.
3.What payment methods are accepted for RCLAMP2504N.TCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RCLAMP2504N.TCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RCLAMP2504N.TCT?
RCLAMP2504N.TCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RCLAMP2504N.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 RCLAMP2504N.TCT?
For technical support, including RCLAMP2504N.TCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RCLAMP2504N.TCT requirements.
6.How does Aetrix verify that RCLAMP2504N.TCT is sourced from the original manufacturer or authorized distributors?
All RCLAMP2504N.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 RCLAMP2504N.TCT meets industry standards.
7.What is the process for return or replacement of RCLAMP2504N.TCT?
All RCLAMP2504N.TCT units undergo pre-shipment inspection (PSI). If there is an issue with RCLAMP2504N.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 RCLAMP2504N.TCT part is unused and in its original packaging.
Return procedure for RCLAMP2504N.TCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RCLAMP2504N.TCT Tags
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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