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Semtech Corporation RCLAMP0524PATCT
- Part No.:
- RCLAMP0524PATCT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- 10-UFDFN
- Datasheet:
-
RCLAMP0524PATCT.pdf
- Description:
- TVS DIODE 5VWM 15VC SLP2510P8
- Quantity:
- Payment:
- Shipping:
Inventory:3,972
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Product details
Overview
RCLAMP0524PATCT 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), 27.5–28V clamping voltage at 40A, and 175pF junction capacitance - deployed in USB Type-C PD input protection and industrial load switch front-end circuits.
For engineers reviewing the RCLAMP0524PATCT datasheet, pinout, applications, or equivalent options, key selection criteria include constant clamping voltage across temperature and pulse current, low dynamic resistance (20mΩ), DFN 1.6×1.6mm 6-lead layout compatibility, and compliance with IEC 61000-4-4/5 surge standards for robust industrial and USB PD designs.
Technical Context
The RCLAMP0524PATCT uses a surge-rated FET as its primary protection element, activated by a precision trigger circuit that senses overvoltage events and rapidly shunts transient current to ground. Unlike conventional TVS diodes, its clamping voltage remains stable due to decreasing RDS(on) under surge conditions.
It operates across –40°C to +125°C with reverse stand-off voltage of 22V, breakdown voltage of 25–27.9V, and maintains <600nA leakage at VRWM. Its 20mΩ dynamic resistance and 1120W peak pulse power rating enable reliable protection against lightning-induced surges and contact ESD without thermal runaway.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - matches nominal USB PD bus and industrial 24V rail systems without derating. |
| Clamping Voltage | 27.5–28V at 40A (8/20μs) - stays below 30V damage threshold of common PD controllers and load switches. |
| ESD Rating | ±30kV contact & air (IEC 61000-4-2) - exceeds Level 4 immunity for handheld and connector-exposed interfaces. |
| Peak Pulse Current | 40A (8/20μs) - satisfies IEC 61000-4-5 Line Surge Class 3 (±1kV, RS=42Ω) with margin. |
| Junction Capacitance | 175pF at 22V/1MHz - compatible with DC-coupled 22V power rails; not intended for high-speed data lines. |
| Dynamic Resistance | 20mΩ - ensures minimal voltage rise during surge conduction, critical for low-voltage tolerance downstream ICs. |
| Package | DFN 1.6×1.6×0.55mm, 6-lead - enables compact placement near USB-C connectors or load switch inputs. |
Pinout & Package
Package: DFN 1.6 mm × 1.6 mm × 0.55 mm, 6-lead, Pb-free, RoHS-compliant, UL 94V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pins 1, 2, 3 | GND | Common ground return path for surge current; all three must be connected to maximize current sharing and minimize inductance. |
| Pins 4, 5, 6 | IN | Protected line input (e.g., VBUS or load switch VIN); parallel connection required to achieve full 40A rating and low clamping. |
Key Features
| Feature | Design Value |
|---|---|
| Constant clamping voltage | 27.5–28V across 24–40A and –40°C to +125°C - eliminates design uncertainty from temperature- or current-dependent voltage rise. |
| FET-based shunt architecture | Surge-rated MOSFET + precision trigger circuit - delivers lower clamping than TVS diodes and avoids junction heating failure modes. |
| Low dynamic resistance | 20mΩ - reduces IR drop during surge, enabling effective protection of sensitive 22V-rated ICs like USB PD controllers. |
| High-energy surge handling | 1120W peak pulse power (8/20μs) - supports repeated industrial surge events without degradation. |
| Compact DFN footprint | 1.6×1.6mm area - saves >50% board space vs. traditional SOT-23 or SOIC TVS solutions at equivalent ratings. |
Applications
| USB Type-C Power Delivery Input Protection | Industrial Load Switch Front-End Protection |
|---|---|
|
Use Scenario: Protecting the VBUS line of a USB-C receptacle supporting up to 20V/5A PD negotiation in notebooks and docking stations. IC Role / Device Role / Timing Role: Transient diverting suppressor placed between connector and PD controller or load switch input. Use Value: Maintains clamping at ≤28V across temperature and surge current, preventing latch-up or gate oxide damage in PD controllers rated for 30V max. |
Use Scenario: Safeguarding the input of industrial-grade load switches (e.g., HS2950P) exposed to lightning-induced surges on remote metering or robotics power rails. IC Role / Device Role / Timing Role: Primary EOS shunt device limiting voltage stress on the load switch's internal high-side FET during 8/20μs transients. Use Value: 40A surge rating and 20mΩ RDYN ensure the protected switch sees <28V even under worst-case 1.2/50μs + 8/20μs combination waveforms. |
| IoT Gateway DC Power Rail Protection | Storage Device 22V Backup Supply Protection |
|
Use Scenario: Securing the 22V auxiliary supply rail of an outdoor IoT gateway subjected to EFT bursts and indirect lightning coupling. IC Role / Device Role / Timing Role: Standalone EOS protector on the main DC input before DC-DC converters and microcontroller power domains. Use Value: ±4kV EFT immunity (IEC 61000-4-4) and stable clamping prevent brownouts or reset events caused by transient-induced voltage sag or overshoot. |
Use Scenario: Shielding the 22V backup battery input of enterprise SSDs or NVMe storage modules from hot-plug transients and ESD during field service. IC Role / Device Role / Timing Role: Bidirectional transient clamp on the battery feed line, operating in both forward and reverse conduction modes. Use Value: 22V reverse stand-off and 27.5V clamping ensure no overvoltage reaches the storage controller's power management IC during connector mating/unmating. |
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 | Same die, identical electrical specs, same DFN 1.6×1.6mm package - differs only in tape-and-reel packaging (3,000 pcs/reel vs. RCLAMP0524PATCT's standard reel quantity). | Identical use cases: USB PD, load switch, industrial 22V rail protection. | Select TDS2211P.C when procurement requires Semtech's standard ordering format; functionally interchangeable with RCLAMP0524PATCT. |
| SMAJ22A | Standard unidirectional TVS diode, 22V VRWM, 35.5V VC @ 12.3A - higher clamping, fixed dynamic resistance, no constant-clamp behavior. | Acceptable only where 35.5V clamping is within downstream IC tolerance and temperature stability is non-critical. | Choose SMAJ22A only for cost-sensitive, non-temperature-critical 22V applications; RCLAMP0524PATCT provides superior clamping control and surge margin. |
Compared with TDS2211P.C (identical performance, packaging variant) and SMAJ22A (higher clamping, temperature-sensitive), RCLAMP0524PATCT delivers guaranteed 27.5–28V clamping across full surge and thermal range - essential for protecting modern 22V-rated PD controllers and load switches where voltage margin is tight.
Availability
RCLAMP0524PATCT is available at Aetrix Electronics and suitable for USB Type-C PD interface protection, industrial load switch input safeguarding, and 22V IoT power rail stabilization requiring stable component supply and long-term lifecycle support.
Supply support for RCLAMP0524PATCT 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 semiconductors for power management, protection, and signal integrity.
RCLAMP0524PATCT belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered to replace conventional TVS diodes in high-reliability 22V power and interface protection applications demanding stable clamping and wide temperature operation.
FAQ
What is the clamping voltage of RCLAMP0524PATCT at 40A surge current?
The RCLAMP0524PATCT clamps at 27.5–28V under 40A peak pulse current (8/20μs waveform, 2Ω source impedance), as specified in its Electrical Characteristics table. This value remains stable across –40°C to +125°C operating temperature, distinguishing it from conventional TVS diodes whose clamping rises with current and temperature. The RCLAMP0524PATCT achieves this via its FET-based shunt architecture and low 20mΩ dynamic resistance.
Is RCLAMP0524PATCT suitable for protecting USB Type-C VBUS lines?
Yes, RCLAMP0524PATCT is explicitly validated for USB Type-C Power Delivery input protection, supporting up to 22V nominal bus voltage. Its 22V reverse stand-off voltage, 27.5–28V clamping, and ±30kV IEC 61000-4-2 ESD rating align with USB PD controller voltage tolerances. Semtech's reference design places RCLAMP0524PATCT directly at the connector to limit transient energy before it reaches the PD controller or load switch - making RCLAMP0524PATCT a purpose-fit solution for this application.
How does RCLAMP0524PATCT differ from standard TVS diodes like SMAJ22A?
RCLAMP0524PATCT uses a surge-rated FET and precision trigger circuit to deliver constant clamping voltage (27.5–28V) across its full 24–40A surge range and –40°C to +125°C temperature span. In contrast, SMAJ22A - a standard unidirectional TVS - exhibits rising clamping (35.5V at 12.3A) due to fixed dynamic resistance and degrades further at elevated temperatures. RCLAMP0524PATCT's 20mΩ RDYN and 1120W peak power rating also provide superior surge handling versus SMAJ22A's 350W rating.
What is the recommended PCB layout for RCLAMP0524PATCT?
Per Semtech's datasheet, all three GND pins (1, 2, 3) and all three IN pins (4, 5, 6) must be connected in parallel using short, wide traces. Place RCLAMP0524PATCT as close as possible to the protected connector (e.g., USB-C receptacle) to minimize trace inductance. Use multiple vias from GND pins to an internal ground plane, and avoid thermal pads - energy is dissipated in the silicon, not the package. This layout ensures full 40A surge capability and optimal clamping performance for RCLAMP0524PATCT.
Does RCLAMP0524PATCT meet industrial surge immunity standards?
Yes, RCLAMP0524PATCT meets IEC 61000-4-5 Level 3 (±1kV, 42Ω source, 0.5μF coupling) and IEC 61000-4-4 Level 4 (±4kV EFT) requirements. Its 40A 8/20μs rating and 27.5–28V clamping ensure downstream components remain within safe operating voltage during standardized surge events. It is widely deployed in industrial equipment, remote meters, and robotics - applications cited in Semtech's official application notes for RCLAMP0524PATCT.
RCLAMP0524PATCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 10-UFDFN
- Series:
- RailClamp®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Steering (Rail to Rail)
- Unidirectional Channels:
- 4
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 6V
- Voltage - Clamping (Max) @ Ipp:
- 15V
- Current - Peak Pulse (10/1000µs):
- 5A (8/20µs)
- Power - Peak Pulse:
- 150W
- Power Line Protection:
- Yes
- Applications:
- HDMI
- Capacitance @ Frequency:
- 0.8pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SLP2510P8
RCLAMP0524PATCT FAQ
1.How can I place an order for RCLAMP0524PATCT through Aetrix?
Please submit a Request for Quotation (RFQ) for RCLAMP0524PATCT 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 RCLAMP0524PATCT reliable?
The price and inventory of RCLAMP0524PATCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RCLAMP0524PATCT is usually 5 days.
3.What payment methods are accepted for RCLAMP0524PATCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RCLAMP0524PATCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RCLAMP0524PATCT?
RCLAMP0524PATCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RCLAMP0524PATCT 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 RCLAMP0524PATCT?
For technical support, including RCLAMP0524PATCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RCLAMP0524PATCT requirements.
6.How does Aetrix verify that RCLAMP0524PATCT is sourced from the original manufacturer or authorized distributors?
All RCLAMP0524PATCT 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 RCLAMP0524PATCT meets industry standards.
7.What is the process for return or replacement of RCLAMP0524PATCT?
All RCLAMP0524PATCT units undergo pre-shipment inspection (PSI). If there is an issue with RCLAMP0524PATCT, 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 RCLAMP0524PATCT part is unused and in its original packaging.
Return procedure for RCLAMP0524PATCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RCLAMP0524PATCT Tags
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