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Semtech Corporation RCLAMP2402B.TCT
- Part No.:
- RCLAMP2402B.TCT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- SC-75, SOT-416
- Datasheet:
-
RCLAMP2402B.TCT.pdf
- Description:
- TVS DIODE 24VWM 55VC SC75
- Quantity:
- Payment:
- Shipping:
Inventory:3,252
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Product details
Overview
RCLAMP2402B.TCT from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS/ESD protection of single 24V-rated I/O 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), and stable 28V clamping voltage across temperature and current range.
For engineers reviewing the RCLAMP2402B.TCT datasheet, pinout, applications, or equivalent options, this device offers superior clamping stability versus conventional TVS diodes-critical for protecting sensitive 24V bus controllers, load switches, and PD interface ICs under real-world surge and thermal conditions.
Technical Context
RCLAMP2402B.TCT uses a surge-rated FET as its primary protection element, activated by a precision trigger circuit that senses overvoltage events. Unlike standard TVS diodes, its clamping voltage remains nearly constant (27.5–28V) from 24A to 40A peak pulse current due to ultra-low dynamic resistance (20mΩ).
The device operates across –40°C to +125°C with reverse stand-off voltage of 24V, breakdown voltage of 27V (typ), and junction capacitance of 175pF at 24V bias. Its DFN 1.6×1.6×0.55mm package integrates three parallel input terminals (pins 4–6) and three ground terminals (pins 1–3) to minimize parasitic inductance and maximize surge current handling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 24V - defines maximum continuous DC operating voltage on protected line without leakage or conduction. |
| Clamping Voltage | 28V at 40A (8/20μs) - ensures downstream 24V-rated ICs (e.g., USB PD controllers, load switches) remain below damage threshold during worst-case surges. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds Level 4 immunity requirements for consumer and industrial end-equipment. |
| Peak Pulse Current | 40A (8/20μs) - supports compliance with IEC 61000-4-5 ±1kV surge testing on 42Ω source impedance lines. |
| Dynamic Resistance | 20mΩ - enables flat clamping response and minimizes voltage overshoot during fast-rising transients. |
| Junction Capacitance | 175pF at 24V, 1MHz - low enough for 24V power rail protection without signal integrity impact on adjacent traces. |
Pinout & Package
Package: DFN 1.6mm × 1.6mm × 0.55mm, 6-lead, Pb-free, RoHS/WEEE compliant, UL 94V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pins 1, 2, 3 | GND | Low-inductance ground return path; all three must be connected to PCB ground plane via multiple vias for full 40A surge capability. |
| Pins 4, 5, 6 | IN | Parallel-connected input terminals for protected 24V bus; shared connection reduces trace inductance and improves surge sharing. |
Key Features
| Feature | Design Value |
|---|---|
| FET-based transient shunt | Replaces conventional TVS diode with active FET switch, delivering near-constant clamping independent of surge amplitude or temperature. |
| Stable clamping over temperature | Clamping voltage varies <±0.2V from –40°C to +125°C - eliminates derating uncertainty in industrial or automotive ambient conditions. |
| High-energy surge rating | 1120W peak pulse power (8/20μs) - handles repeated lightning-induced surges without degradation or parametric shift. |
| Low dynamic resistance | 20mΩ measured between 1A–40A - minimizes IR drop during surge, preserving voltage margin for downstream 24V logic. |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting VCONN/VBUS lines in USB Type-C receptacles supporting up to 24V PD profiles. IC Role / Device Role / Timing Role: Transient diverting suppressor placed at connector entry point to clamp EOS before reaching PD controller or e-fuse. Use Value: Maintains 28V clamping at 40A and 125°C - prevents latch-up or gate oxide damage in 24V-rated PD controllers where conventional TVS would exceed 35V. |
Use Scenario: Shielding enable and input pins of industrial-grade load switches (e.g., TPS229xx, MP6255x) against 1kV/42Ω surges. IC Role / Device Role / Timing Role: Primary front-end surge protector for high-side switch inputs exposed to field wiring or hot-plug events. Use Value: Limits voltage seen by internal FET gate oxide to ≤28V - avoids permanent damage or threshold shift in 24V-rated load switches during surge testing. |
| IoT Edge Node Power Rail Protection | 24V Industrial Control Interface Protection |
Use Scenario: Securing 24V auxiliary power rails in battery-backed IoT gateways subjected to ESD during field servicing. IC Role / Device Role / Timing Role: Standalone EOS suppressor on 24V input rail feeding PMICs, microcontrollers, or isolated DC-DC converters. Use Value: Delivers ±30kV ESD immunity while adding only 175pF capacitance - no impact on upstream 24V supply regulation or startup timing. |
Use Scenario: Protecting analog/digital I/O modules in PLC backplanes operating from 24V DC field supplies. IC Role / Device Role / Timing Role: Point-of-entry transient suppressor on 24V input terminal blocks before fuse or input filter stage. Use Value: Handles 40A surge current without thermal runaway - sustains protection integrity after repeated 1kV/42Ω surges per IEC 61000-4-5. |
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, 27.5–28V clamping, same DFN-6 package and pinout. | Optimized for 22V systems (e.g., USB PD 20V max); lower clamping headroom than RCLAMP2402B.TCT in 24V designs. | Select when system nominal voltage is ≤22V and tighter clamping margin is required. |
| uClamp2411ZA | 24V working voltage, 33V clamping at 24A, 0.25pF capacitance, SOD-323 package. | Designed for low-capacitance data-line protection (CC/SBU); lacks 40A surge rating and FET-based clamping stability. | Use only for signal-line protection where capacitance <0.5pF is mandatory; not suitable for 24V power rail surge suppression. |
Compared with TDS2211P and uClamp2411ZA, RCLAMP2402B.TCT uniquely combines 24V working voltage, 40A surge rating, and FET-based flat clamping - making it the only option among the three qualified for robust 24V power rail protection in USB PD, industrial load switches, and field-deployed 24V control systems.
Availability
RCLAMP2402B.TCT is available at Aetrix Electronics and suitable for USB Type-C PD implementations, industrial load switch protection, and 24V IoT edge node power rail designs requiring stable component supply and long-term lifecycle support.
Supply support for RCLAMP2402B.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 precision protection, signal integrity, and power management.
RCLAMP2402B.TCT belongs to Semtech's Transient Diverting Suppressor (TDS) family, engineered to replace conventional TVS diodes in high-voltage, high-energy EOS protection applications where clamping stability across temperature and current is critical.
FAQ
What is the maximum continuous operating voltage for RCLAMP2402B.TCT?
RCLAMP2402B.TCT has a reverse stand-off voltage (VRWM) of 24V, meaning it can safely block up to 24V DC or RMS AC continuously without significant leakage or conduction. This makes RCLAMP2402B.TCT suitable for 24V industrial buses, USB PD 24V profiles, and other 24V-rated power rail protection applications.
How does RCLAMP2402B.TCT achieve stable clamping voltage across temperature?
RCLAMP2402B.TCT uses a surge-rated FET triggered by a precision reference circuit - not a PN-junction diode. As surge current increases, the FET's RDS(on) decreases, maintaining clamping voltage near the trigger threshold (~27.5–28V) from –40°C to +125°C. This behavior is confirmed in the RCLAMP2402B.TCT datasheet's clamping vs. temperature curves.
Can RCLAMP2402B.TCT replace a standard TVS diode in a 24V design?
Yes - RCLAMP2402B.TCT is a direct functional upgrade over conventional 24V TVS diodes. Unlike TVS devices whose clamping voltage rises linearly with current and temperature, RCLAMP2402B.TCT maintains 28V clamping at 40A and 125°C. Engineers should verify PCB layout (short, low-inductance GND paths) and ensure all six pins of RCLAMP2402B.TCT are properly connected.
What is the junction capacitance of RCLAMP2402B.TCT, and why does it matter?
RCLAMP2402B.TCT exhibits 175pF junction capacitance at 24V reverse bias and 1MHz. This value is low enough to avoid loading 24V power rails or interfering with upstream regulators, yet higher than signal-line TVS devices - reflecting its optimization for power-line, not data-line, protection. The RCLAMP2402B.TCT datasheet confirms this is measured under standardized conditions.
Is RCLAMP2402B.TCT compatible with automated SMT assembly processes?
Yes - RCLAMP2402B.TCT is supplied in tape-and-reel format and packaged in a standard DFN 1.6×1.6×0.55mm outline with JEDEC-compliant land pattern. Its Pb-free, RoHS-compliant finish and UL 94V-0 molding compound meet IPC-A-610 Class 2/3 process requirements. Reflow profiles must follow Semtech's recommended thermal profile for RCLAMP2402B.TCT.
RCLAMP2402B.TCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- SC-75, SOT-416
- Series:
- RailClamp®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 2
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 24V (Max)
- Voltage - Breakdown (Min):
- 26.7V
- Voltage - Clamping (Max) @ Ipp:
- 55V
- Current - Peak Pulse (10/1000µs):
- 4A (8/20µs)
- Power - Peak Pulse:
- 200W
- Power Line Protection:
- No
- Applications:
- HDMI
- Capacitance @ Frequency:
- 0.6pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-75 (SOT523)
RCLAMP2402B.TCT FAQ
1.How can I place an order for RCLAMP2402B.TCT through Aetrix?
Please submit a Request for Quotation (RFQ) for RCLAMP2402B.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 RCLAMP2402B.TCT reliable?
The price and inventory of RCLAMP2402B.TCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RCLAMP2402B.TCT is usually 5 days.
3.What payment methods are accepted for RCLAMP2402B.TCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RCLAMP2402B.TCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RCLAMP2402B.TCT?
RCLAMP2402B.TCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RCLAMP2402B.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 RCLAMP2402B.TCT?
For technical support, including RCLAMP2402B.TCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RCLAMP2402B.TCT requirements.
6.How does Aetrix verify that RCLAMP2402B.TCT is sourced from the original manufacturer or authorized distributors?
All RCLAMP2402B.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 RCLAMP2402B.TCT meets industry standards.
7.What is the process for return or replacement of RCLAMP2402B.TCT?
All RCLAMP2402B.TCT units undergo pre-shipment inspection (PSI). If there is an issue with RCLAMP2402B.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 RCLAMP2402B.TCT part is unused and in its original packaging.
Return procedure for RCLAMP2402B.TCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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